A device and method for degumming hemp fibers

Abstract

This invention discloses a hemp fiber degumming treatment device and method, belonging to the field of textile technology. It includes a main shell with a material placement plate on its top. A pair of conveying rollers are arranged on one side of the material placement plate. A loosening assembly and an adjusting assembly are arranged inside the main shell. An impurity chamber is formed on the lower side of the loosening assembly, and a collection box is slidably connected to the bottom of the impurity chamber. A cotton-coating roller and a brushing roller are rotatably connected inside the main shell on the side away from the material placement plate. Through the cooperation of the loosening roller and curved filter plate, the hemp fibers are easily loosened. The loosening roller rotates and conveys the hemp fibers. Hemp fiber scraping teeth, arranged in an alternating pattern on the surface of the loosening roller and the inner side of the curved filter plate, pull the hemp fibers as the loosening roller rotates, causing the hemp fibers to loosen. Impurities inside the hemp fibers fall through the curved filter plate and enter the impurity chamber.

Description

Technical Field

[0001] This invention relates to the field of textile processing technology, and more specifically, to a device and method for degumming hemp fibers. Background Technology

[0002] Hemp fiber refers to the general term for fibers obtained from various hemp plants. Hemp fiber can be used as a textile raw material to weave various cool and fine linen fabrics, summer cloth, etc. In the current hemp fiber extraction process, hemp fibers often contain impurities such as hemp flesh and hemp bark. These impurities not only affect the subsequent weaving but also easily cause the hemp fibers to break after drying.

[0003] Hemp fibers are bound together by a gum, and during production, this gum must be removed to separate the fibers—a process known as degumming. Degumming of hemp raw materials is the most fundamental and crucial processing step in the hemp textile industry. This process typically involves removing non-cellulose substances (collectively called gum) from raw hemp to obtain pure hemp fibers suitable for textiles. Therefore, degumming is a fundamental step in the hemp textile industry, and its quality directly affects the texture and quality of the textiles.

[0004] For a long time, chemical degumming has been the dominant method. However, no matter how much it is improved, chemical degumming cannot completely overcome its many inherent defects, such as high cost, high energy consumption, low fiber quality, poor quality, and serious environmental pollution. In particular, its huge environmental pollution has put hemp textile enterprises at risk of shutdown and closure. Biological degumming is a newly developed technology that can overcome the above-mentioned shortcomings. There are two types of biological degumming for hemp fibers: microbial degumming and enzymatic degumming. Enzymatic degumming requires the use of enzyme preparations, which are not easy to obtain and are also expensive, limiting its application and promotion. Furthermore, due to the complex composition of ramie gum, the degumming capacity of one or a few biological enzymes is limited, and the degumming effect is not easy to control. Summary of the Invention

[0005] In view of this, in order to solve the technical problem of impurities remaining in dried hemp fibers in the prior art, the present invention provides a hemp fiber degumming treatment device and method.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The first objective of this invention is to provide a hemp fiber degumming treatment device, comprising a main body shell, a material placement plate on the top of the main body shell, a pair of conveying rollers on one side of the material placement plate, a loosening assembly and an adjusting assembly inside the main body shell, an impurity chamber on the lower side of the loosening assembly, a collection box slidably connected to the bottom of the impurity chamber, a coagulating roller and a brushing roller rotatably connected inside the side of the main body shell away from the material placement plate, a discharge port on the side of the brushing roller, and a conveying channel between the loosening assembly and the coagulating roller.

[0008] Preferably, the material placement plate is located on top of the main body shell, and the material placement plate is connected to the interior of the stretching assembly. The conveying roller is connected by a transmission gear so that the conveying roller rotates synchronously. The conveying roller is located between the material placement plate and the stretching assembly, and is rotatably connected to the main body shell.

[0009] Preferably, the loosening assembly includes a loosening roller, a curved filter plate is provided at the bottom of the loosening roller, a plurality of hemp fiber scraping teeth are fixedly connected to the inner side of the curved filter plate and the upper end of the loosening roller, and a fiber shovel plate is provided at the top of the loosening roller.

[0010] Preferably, the stretching roller is rotatably connected to the main body shell, and one end of the stretching roller penetrates the main body shell and is fixedly connected to an industrial motor. The curved filter plate is fixedly connected to the main body shell. The hemp fiber scraping teeth on the surface of the stretching roller are distributed in a ring, and the hemp fiber scraping teeth on the inner side of the curved filter plate are staggered with the hemp fiber scraping teeth on the surface of the stretching roller.

[0011] Preferably, the fiber shovel is fixedly connected to the main body shell, the fiber shovel has an arc-shaped structure that bends downward toward one side of the cotton condensing roller, the middle of the fiber shovel is linearly distributed and has an opening corresponding to the position of the curved filter plate on the surface of the loosening roller, and the bottom of the fiber shovel abuts against the surface of the loosening roller.

[0012] Preferably, the adjustment assembly includes a pair of sliding brackets, a lifting grid frame is movably connected in the middle of the pair of sliding brackets, springs are fixedly connected to both sides of the lifting grid frame, an electric telescopic rod is fixedly connected to the bottom of the sliding brackets, and a sliding sealing baffle is fixedly connected to the top of one of the sliding brackets.

[0013] Preferably, the sliding bracket is slidably connected to the main body shell, the sliding bracket is located on both sides of the curved filter plate, and the sliding bracket has a linearly distributed sliding rod in the middle. The lifting grid frame is slidably connected to the curved filter plate. The lifting grid frame includes two parts: fixed partitions on both sides and an arc-shaped grid plate in the middle. The fixed partitions are slidably connected to the sliding rod in the middle of the sliding bracket. The arc-shaped grid plate has the same structural shape as the curved filter plate, and the arc-shaped grid plate is linearly distributed in the middle of the hemp fiber scraping teeth.

[0014] Preferably, the lower end of the spring is fixedly connected to the sliding bracket, and the spring is sleeved on the outside of the middle slide rod of the sliding bracket. The bottom of the electric telescopic rod penetrates the main body shell and extends to the outside of the main body shell and is fixedly connected to the main body shell.

[0015] The sliding sealing baffle is located on the top of the sliding bracket near the side of the condensing roller. The sliding sealing baffle is L-shaped and slidably connected inside the material conveying channel. The top of the sliding sealing baffle penetrates the main body shell and extends to the outside of the main body shell.

[0016] Preferably, the rotation of the loosening roller drives the fibers to move towards the feeding channel, and the electric telescopic rod drives the lifting grid frame to move up and down. The lifting grid frame lifts the hemp fibers on the inner side of the curved filter plate, while the sliding sealing baffle moves upward to release the separation of the feeding channel, so that the loosening roller drives the hemp fibers to move to the feeding channel. At the same time, the fiber scraper scrapes off the hemp fibers on the surface of the loosening roller.

[0017] A second objective of this invention is to provide a method for degumming hemp fibers, using the hemp fiber degumming device described above, the method comprising the following steps:

[0018] Step S 100 Place the material on top of the material placement plate, start the conveyor rollers, and the conveyor rollers will transport the hemp fibers into the interior of the main body shell;

[0019] Step S 200 The rotation of the loosening roller drives the hemp fiber to rotate and move. When the hemp fiber moves to the curved filter plate, the hemp fiber is pulled by the hemp fiber scraping teeth, which loosens the hemp fiber and filters the impurities falling from the hemp fiber out of the curved filter plate and into the interior of the impurity chamber, and then collects into the interior of the collection box.

[0020] Step S 300: Start the electric telescopic rod, which drives the lifting grid frame to move up and down reciprocally through the sliding bracket. The lifting grid frame intermittently lifts the hemp fibers on the inside of the curved filter plate, so that the hemp fibers will not remain on the inside of the curved filter plate, thus ensuring the smooth flow of the curved filter plate.

[0021] Step S 400 The sliding sealing baffle moves upward, releasing the separation of the material conveying channel, allowing the loosening roller to move the hemp fiber to the material conveying channel, and then conveying the hemp fiber to the cotton condensing roller.

[0022] Compared with traditional existing technologies, the degumming process for hemp fibers of the present invention has the following advantages:

[0023] This invention, during operation, involves placing material on top of a material placement plate, activating a conveying roller, and feeding hemp fibers into the interior of the main casing. The hemp fibers then come into contact with a loosening roller, which rotates and moves the fibers. When the fibers reach the curved filter plate, the fiber scraping teeth pull and loosen them, allowing impurities to be filtered out of the curved filter plate and enter the impurity chamber, where they then collect in a collection box. Simultaneously, an electric telescopic rod is activated, which, via a sliding bracket, moves a lifting grid frame up and down reciprocally. This intermittent lifting of the grid frame lifts the hemp fibers inside the curved filter plate, preventing them from remaining and ensuring unobstructed flow. Simultaneously, a sliding sealing baffle moves upward, removing the obstruction to the material conveying channel, allowing the loosening roller to move the hemp fibers to the conveying channel and deliver them to the condensing roller. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the hemp fiber degumming treatment device in an embodiment of the present invention;

[0025] Figure 2 This is a side sectional view of the main body shell in an embodiment of the present invention;

[0026] Figure 3 This is a cross-sectional enlarged view of the loosening component in an embodiment of the present invention;

[0027] Figure 4 This is a magnified cross-sectional view of the adjustment component in an embodiment of the present invention;

[0028] Figure 5 This is an enlarged cross-sectional view of the sliding sealing baffle in an embodiment of the present invention;

[0029] Figure 6 This is an exploded cross-sectional view of the loosening and adjusting components in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Main body shell; 2-Material placement plate; 3-Conveying roller;

[0032] 4-Loosening assembly; 41-Loosening roller; 42-Curved filter plate; 43-Hemp fiber scraping teeth; 44-Fiber shovel plate;

[0033] 5-Adjustment component; 51-Sliding bracket; 52-Lifting grid frame; 53-Spring; 54-Electric telescopic rod; 55-Sliding sealing baffle;

[0034] 6-Impurity chamber; 7-Collection box; 8-Cotton condensing roller; 9-Brushing roller; 10-Discharge port; 11-Conveying channel. Detailed Implementation

[0035] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0037] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] Please see Figure 1-6 As shown, this embodiment of the invention provides a hemp fiber degumming treatment device, which includes a main shell 1, a material placement plate 2, a conveying roller 3, a loosening assembly 4, an adjusting assembly 5, an impurity chamber 6, a collection box 7, a condensing roller 8, a brushing roller 9, a discharge port 10, and a conveying channel 11, wherein:

[0040] The top of the main body shell 1 is provided with a material placement plate 2. A pair of conveying rollers 3 are provided on one side of the material placement plate 2. The interior of the main body shell 1 is provided with a loosening component 4 and an adjusting component 5. The lower side of the loosening component 4 is provided with an impurity chamber 6. The bottom of the impurity chamber 6 is slidably connected to a collection box 7. The side of the main body shell 1 away from the material placement plate 2 is rotatably connected with a cotton condensing roller 8 and a brushing roller 9. The side of the brushing roller 9 is provided with a discharge port 10. A material conveying channel 11 is also provided between the loosening component 4 and the cotton condensing roller 8.

[0041] Specifically, in this embodiment of the invention, the rotation of the loosening roller 41 drives the hemp fibers to rotate and move. When the hemp fibers rotate and move to the curved filter plate 42, the hemp fibers are pulled by the hemp fiber scraping teeth 43, causing the hemp fibers to loosen. The impurities falling from the hemp fibers are filtered out from the curved filter plate 42 and enter the impurity cavity 6, and then gather into the collection box 7. At the same time, the electric telescopic rod 54 is activated. The electric telescopic rod 54 drives the lifting grid frame 52 to move up and down reciprocally through the sliding bracket 51. The lifting grid frame 52 intermittently lifts the hemp fibers on the inner side of the curved filter plate 42, causing the loosening roller 41 to drive the hemp fibers to the material conveying channel 11, and then conveying the hemp fibers to the cotton condensing roller 8.

[0042] like Figure 2 , Figure 4 and Figure 5 As shown, the material placement plate 2 is located on the top of the main body shell 1 and is connected to the interior of the loosening assembly 4. The conveying roller 3 is connected by a transmission gear, so that the conveying roller 3 rotates synchronously. The conveying roller 3 is located between the material placement plate 2 and the loosening assembly 4 and is rotatably connected to the main body shell 1. The loosening assembly 4 includes a loosening roller 41. A curved filter plate 42 is provided at the bottom of the loosening roller 41. Multiple hemp fiber scraping teeth 43 are fixedly connected to the inner side of the curved filter plate 42 and the upper end of the loosening roller 41. A fiber shovel plate 44 is provided at the top of the loosening roller 41.

[0043] Specifically, in this embodiment of the invention, by setting up a material placement plate 2, it is convenient to place the hemp fibers that need to be loosened. The conveying roller 3 set in the middle of the loosening roller 41 and the material placement plate 2 facilitates the conveying of the hemp fibers into the interior of the main body shell 1. By setting up a loosening component 4, the hemp fibers are moved by the hemp fiber scraping teeth 43 on the surface of the loosening roller 41. At the same time, the hemp fiber scraping teeth 43 inside the curved filter plate 42 pulls and loosens the moving hemp fibers, so that the hemp fibers are pulled and loosened. Meanwhile, the impurities inside them will fall from the curved filter plate 42 into the impurity cavity 6 and then into the interior of the collection box 7.

[0044] like Figure 2 , Figure 3 and Figure 6As shown, the loosening roller 41 is rotatably connected to the main body shell 1, and one end of the loosening roller 41 penetrates the main body shell 1 and is fixedly connected to the industrial motor. The curved filter plate 42 is fixedly connected to the main body shell 1. The hemp fiber scraping teeth 43 on the surface of the loosening roller 41 are distributed in a ring. The hemp fiber scraping teeth 43 on the inner side of the curved filter plate 42 are staggered with the hemp fiber scraping teeth 43 on the surface of the loosening roller 41. The fiber shovel plate 44 is fixedly connected to the main body shell 1. The fiber shovel plate 44 has an arc-shaped structure that bends downward toward the cotton condensing roller 8. The middle part of the fiber shovel plate 44 has openings that are linearly distributed and correspond to the positions of the curved filter plate 42 on the surface of the loosening roller 41. The bottom of the fiber shovel plate 44 abuts against the surface of the loosening roller 41.

[0045] Specifically, in this embodiment of the invention, a loosening roller 41 is provided, which drives the hemp fiber scraping teeth 43 to rotate, thereby conveying hemp fibers. The hemp fiber scraping teeth 43 are arranged in an alternating pattern on the surface of the loosening roller 41 and the inner side of the curved filter plate 42. When the loosening roller 41 drives the hemp fibers to rotate, the hemp fiber scraping teeth 43 will pull the hemp fibers in an alternating pattern, making the hemp fibers loose. The arrangement of the curved filter plate 42 will filter out the impurities that fall from the hemp fibers when they are loosened. The fiber shovel plate 44 provided on the top of the loosening roller 41 can abut against the surface of the loosening roller 41, thereby scraping off the hemp fibers caught between the hemp fiber scraping teeth 43 on the surface of the loosening roller 41, so as to avoid the hemp fibers from tangling and accumulating on the surface of the loosening roller 41. The openings on the loosening roller 41 can prevent the hemp fiber scraping teeth 43 from getting stuck with the loosening roller 41.

[0046] like Figures 3 to 6 As shown, the adjustment assembly 5 includes a pair of sliding brackets 51, with a lifting grid frame 52 movably connected in the middle of the pair of sliding brackets 51. Springs 53 are fixedly connected to both sides of the lifting grid frame 52. An electric telescopic rod 54 is fixedly connected to the bottom of the sliding bracket 51. A sliding sealing baffle 55 is fixedly connected to the top of one of the sliding brackets 51. The sliding brackets 51 are slidably connected to the main body shell 1. The sliding brackets 51 are located on both sides of the curved filter plate 42. Sliding rods are linearly distributed in the middle of the sliding brackets 51. The lifting grid frame 52 is slidably connected to the curved filter plate 42. The lifting grid frame 52 includes two parts: fixed partitions on both sides and an arc-shaped grid plate in the middle. The fixed partitions are slidably connected to the sliding rods in the middle of the sliding brackets 51. The arc-shaped grid plate has the same shape and structure as the curved filter plate 42. At the same time, the arc-shaped grid plate is linearly distributed in the middle of the hemp fiber scraping teeth 43.

[0047] Therefore, by setting the adjustment component 5, the electric telescopic rod 54 drives the lifting grid frame 52 to move up and down, so that the lifting grid frame 52 lifts the hemp fibers on the inner side of the curved filter plate 42. At the same time, the sliding sealing baffle 55 moves upward, releasing the separation of the material conveying channel 11, so that the hemp fibers can be conveyed to the cotton condensing roller 8. By setting the sliding bracket 51, the sliding bracket 51 drives the lifting grid frame 52 to move up and down. The sliding rod set inside the sliding bracket 51 facilitates the limiting of the lifting grid frame 52, so that the lifting grid frame 52 maintains stable movement. The lifting grid frame 52 is designed to facilitate the lifting of hemp fibers stored inside the curved filter plate 42. The grid plate of the lifting grid frame 52 lifts the hemp fibers inside the curved filter plate 42, thereby disconnecting the hemp fibers from the hemp fiber scraping teeth 43 inside the curved filter plate 42. This allows the loosening roller 41 to move and transport the hemp fibers into the material conveying channel 11. The lifting grid frame 52 is set to an arc shape similar to the curved filter plate 42, so that when the lifting grid frame 52 lifts the hemp fibers, it always seals the gaps between the curved filter plates 42.

[0048] like Figures 2 to 6 As shown, the lower end of the spring 53 is fixedly connected to the sliding bracket 51, and the spring 53 is sleeved on the outer side of the middle sliding rod of the sliding bracket 51. The bottom of the electric telescopic rod 54 penetrates the main body shell 1 and extends to the outer side of the main body shell 1 and is fixedly connected to the main body shell 1. The sliding sealing baffle 55 is located on the top of the sliding bracket 51 near the side of the cotton condensing roller 8. The sliding sealing baffle 55 is L-shaped and slidably connected inside the material conveying channel 11. The top of the sliding sealing baffle 55 penetrates the main body shell 1 and extends to the outer side of the main body shell 1. The loosening roller 41 rotates and drives the fiber to move towards the material conveying channel 11. The electric telescopic rod 54 drives the lifting grid frame 52 to move up and down. The lifting grid frame 52 lifts the hemp fiber on the inner side of the curved filter plate 42. At the same time, the sliding sealing baffle 55 moves upward, releasing the separation of the material conveying channel 11, so that the loosening roller 41 drives the hemp fiber to move to the material conveying channel 11. At the same time, the fiber scraper 44 scrapes the hemp fiber off the surface of the loosening roller 41.

[0049] Therefore, by setting the spring 53, after the lifting grid frame 52 rises to the top, the sliding bracket 51 can continue to move to push the sliding sealing baffle 55 to move upward, so as to release the separation of the material conveying channel 11. The setting of the electric telescopic rod 54 facilitates the up and down movement of the sliding bracket 51. The sliding sealing baffle 55 set inside the material conveying channel 11 can block the material conveying channel 11 when the lifting grid frame 52 fails to lift the hemp fibers inside the curved filter plate 42, so that the hemp fibers remain at the loosening roller 41, and prevent impurities from entering the cotton condensing roller 8 from the material conveying channel 11 when the hemp is loosened.

[0050] When the loosening roller 41 rotates and drives the fibers to move towards the conveying channel 11, the electric telescopic rod 54 is activated to drive the lifting grid frame 52 to move up and down. The lifting grid frame 52 intermittently lifts the hemp fibers on the inside of the curved filter plate 42, so that the hemp fibers will not remain on the inside of the curved filter plate 42 and will not block the curved filter plate 42, thus maintaining the filtration effect of the curved filter plate 42. At the same time, the sliding sealing baffle 55 moves upward, releasing the separation of the conveying channel 11, so that the loosening roller 41 drives the hemp fibers to the conveying channel 11 and conveys the hemp fibers to the cotton condensing roller 8.

[0051] This invention also provides a method for degumming hemp fibers, using the hemp fiber degumming device described above, the method comprising the following steps:

[0052] Step S 100 Place the material on top of the material placement plate 2, start the conveyor roller 3, and the conveyor roller 3 will transport the hemp fiber into the interior of the main body shell 1;

[0053] Step S 200 The rotation of the loosening roller 41 drives the hemp fiber to rotate and move. When the hemp fiber moves to the curved filter plate 42, the hemp fiber is pulled by the hemp fiber scraping teeth 43, which loosens the hemp fiber and filters the impurities falling from the hemp fiber out of the curved filter plate 42 and into the impurity chamber 6, and then collects into the collection box 7.

[0054] Step S 300 : Start the electric telescopic rod 54, which drives the lifting grid frame 52 to move up and down reciprocally through the sliding bracket 51. The lifting grid frame 52 intermittently lifts the hemp fibers on the inside of the curved filter plate 42, so that the hemp fibers will not remain on the inside of the curved filter plate 42, ensuring the unobstructed flow of the curved filter plate 42.

[0055] Step S 400 The sliding sealing baffle 55 moves upward, releasing the separation of the material conveying channel 11, causing the loosening roller 41 to carry the hemp fiber to the material conveying channel 11, and conveying the hemp fiber to the cotton condensing roller 8.

[0056] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

[0057] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the scope of protection of this invention.

Claims

1. A device for degumming hemp fibers, characterized in that: The system includes a main shell (1), a material placement plate (2) is provided on the top of the main shell (1), a pair of conveying rollers (3) are provided on one side of the material placement plate (2), a loosening assembly (4) and an adjusting assembly (5) are provided inside the main shell (1), an impurity chamber (6) is provided on the lower side of the loosening assembly (4), a collection box (7) is slidably connected to the bottom of the impurity chamber (6), a cotton condensing roller (8) and a brushing roller (9) are rotatably connected inside the side of the main shell (1) away from the material placement plate (2), a discharge port (10) is provided on the side of the brushing roller (9), and a conveying channel (11) is provided between the loosening assembly (4) and the cotton condensing roller (8). The material placement plate (2) is located on the top of the main body shell (1), and the material placement plate (2) is connected to the interior of the loosening assembly (4). The conveying roller (3) is connected by a transmission gear so that the conveying roller (3) rotates synchronously. The conveying roller (3) is located between the material placement plate (2) and the loosening assembly (4), and is rotatably connected to the main body shell (1). The loosening assembly (4) includes a loosening roller (41), a curved filter plate (42) is provided at the bottom of the loosening roller (41), and a plurality of hemp fiber scraping teeth (43) are fixedly connected to the inner side of the curved filter plate (42) and the upper end of the loosening roller (41). A fiber shovel plate (44) is provided at the top of the loosening roller (41). The adjustment assembly (5) includes a pair of sliding brackets (51), a lifting grid frame (52) is movably connected in the middle of the pair of sliding brackets (51), springs (53) are fixedly connected on both sides of the lifting grid frame (52), an electric telescopic rod (54) is fixedly connected to the bottom of the sliding bracket (51), and a sliding sealing baffle (55) is fixedly connected to the top of one of the sliding brackets (51). The sliding bracket (51) is slidably connected to the main body shell (1). The sliding bracket (51) is located on both sides of the curved filter plate (42). The sliding bracket (51) has a linearly distributed sliding rod in the middle. The lifting grid frame (52) is slidably connected to the curved filter plate (42). The lifting grid frame (52) includes two parts: fixed partitions on both sides and an arc-shaped grid plate in the middle. The fixed partitions are slidably connected to the sliding rod in the middle of the sliding bracket (51). The arc-shaped grid plate has the same structural shape as the curved filter plate (42), and the arc-shaped grid plate is linearly distributed in the middle of the hemp fiber scraping teeth (43). The lower end of the spring (53) is fixedly connected to the sliding bracket (51), and the spring (53) is sleeved on the outside of the middle sliding rod of the sliding bracket (51). The bottom of the electric telescopic rod (54) penetrates the main body shell (1) and extends to the outside of the main body shell (1) and is fixedly connected to the main body shell (1). The sliding sealing baffle (55) is located on the top of the sliding bracket (51) near the side of the cotton condensing roller (8). The sliding sealing baffle (55) is L-shaped and slidably connected inside the material conveying channel (11). The top of the sliding sealing baffle (55) penetrates the main body shell (1) and extends to the outside of the main body shell (1).

2. The hemp fiber degumming treatment device according to claim 1, characterized in that: The loosening roller (41) is rotatably connected to the main body shell (1), and one end of the loosening roller (41) penetrates the main body shell (1) and is fixedly connected to an industrial motor. The curved filter plate (42) is fixedly connected to the main body shell (1). The hemp fiber scraping teeth (43) on the surface of the loosening roller (41) are distributed in a ring. The hemp fiber scraping teeth (43) on the inner side of the curved filter plate (42) and the hemp fiber scraping teeth (43) on the surface of the loosening roller (41) are distributed in an alternating manner.

3. The hemp fiber degumming treatment device according to claim 1, characterized in that: The fiber shovel plate (44) is fixedly connected to the main body shell (1). The fiber shovel plate (44) has an arc-shaped structure that bends downward toward one side of the cotton condensing roller (8). The middle part of the fiber shovel plate (44) is linearly distributed and has an opening corresponding to the position of the curved filter plate (42) on the surface of the loosening roller (41). The bottom of the fiber shovel plate (44) abuts against the surface of the loosening roller (41).

4. The hemp fiber degumming treatment device according to claim 1, characterized in that: The loosening roller (41) rotates, causing the fibers to move toward the feeding channel (11). The electric telescopic rod (54) drives the lifting grid frame (52) to move up and down. The lifting grid frame (52) lifts the hemp fibers on the inside of the curved filter plate (42). At the same time, the sliding sealing baffle (55) moves upward, releasing the separation of the feeding channel (11), so that the loosening roller (41) moves the hemp fibers to the feeding channel (11). Meanwhile, the fiber scraper (44) scrapes off the hemp fibers on the surface of the loosening roller (41).

5. A method for degumming hemp fibers, using the hemp fiber degumming device according to any one of claims 1-4, characterized in that: The processing method includes the following steps: Step S 100 Place the material on top of the material placement plate (2), start the conveyor roller (3), and the conveyor roller (3) will convey the hemp fiber into the interior of the main body shell (1); Step S 200 The loosening roller (41) rotates and drives the hemp fiber to rotate and move. When the hemp fiber moves to the curved filter plate (42), the hemp fiber is pulled by the hemp fiber scraping teeth (43) to loosen the hemp fiber and filter the impurities falling from the hemp fiber from the curved filter plate (42) into the interior of the impurity chamber (6), and then gather into the interior of the collection box (7). Step S 300 : Start the electric telescopic rod (54), which drives the lifting grid frame (52) to move up and down repeatedly through the sliding bracket (51). The lifting grid frame (52) intermittently lifts the hemp fibers on the inside of the curved filter plate (42), so that the hemp fibers will not remain on the inside of the curved filter plate (42), ensuring the smooth flow of the curved filter plate (42); Step S 400 The sliding sealing baffle (55) moves upward, releasing the separation of the material conveying channel (11), causing the loosening roller (41) to move the hemp fiber to the material conveying channel (11), and then conveying the hemp fiber to the cotton condensing roller (8).

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