Flax fiber extraction equipment

Abstract

The invention provides flax fiber extraction equipment applied to the field of fiber extraction, the flax fiber extraction equipment comprises a pretreatment unit, a chemical separation unit and a post-treatment unit, and the chemical separation unit comprises a reaction kettle for performing chemical separation operation on flax; a carrier is arranged in the reaction kettle, a first conveying rail is arranged between the dipping tank and the reaction kettle, a second conveying rail is arranged between the reaction kettle and the cleaning tank, and the first conveying rail and the second conveying rail are each provided with a transfer mechanism used for transferring the carrier. Through cooperation of the first conveying rail with the transfer mechanism, the second conveying rail with the transfer mechanism and the carrier with the middle end ring and the clamp, ordered transfer of flax among the dipping tank, the reaction kettle and the cleaning tank can be achieved, chemical separation operation in a rotating state is carried out in the reaction kettle in a mode that the clamp is used for clamping the flax, and the efficiency of chemical separation is improved. The method can effectively enhance full contact between chemical solvents and flax, is not easy to damage separated fibers, has market prospects, and is suitable for popularization and application.

Description

Technical Field

[0001] The present application relates to the field of fiber extraction, and in particular to a flax fiber extraction device. Background Art

[0002] As an important natural fiber, flax fiber has many excellent properties such as strong hygroscopicity, good air permeability, high strength, etc., and has broad application prospects in the textile field. However, flax fiber is naturally wrapped in the stems of flax plants and is tightly combined with impurities such as pectin, lignin, and hemicellulose. To extract it and meet certain quality standards, it requires a complex processing process.

[0003] Traditional flax fiber extraction methods mostly rely on manual operation and simple equipment combination, which has many shortcomings: For example, in the prior art, the impregnated flax raw materials are usually randomly stacked in a reactor. Due to gravity accumulation, the flax cannot fully contact with the chemical solvent in the reactor. In order to improve the chemical separation efficiency in the prior art, a stirring paddle is used for stirring, which easily damages the separated fibers and reduces the overall efficiency and quality of flax fiber extraction.

[0004] For this reason, a flax fiber extraction device is proposed. Summary of the invention

[0005] The purpose of the present application is to solve the technical problems of low efficiency and poor extraction quality of existing flax fiber chemical extraction. Compared with the existing technology, a flax fiber extraction device is provided, which includes a pretreatment unit, a chemical separation unit and a post-treatment unit. The pretreatment unit includes an impregnation tank for impregnating flax, the chemical separation unit includes a reactor for chemical separation operation on flax, and the post-treatment unit includes a cleaning tank for cleaning and neutralizing flax; A plurality of groups of reaction kettles are arranged at equal intervals, each of the reaction kettles is provided with a detachable carrier, the carrier is used to clamp flax, a first conveyor rail is provided between the impregnation tank and the reaction kettle, a second conveyor rail is provided between the reaction kettle and the cleaning tank, a transfer mechanism for intermediate transfer vehicles is provided on the first conveyor rail and the second conveyor rail, a second conveyor belt is provided on the side of the impregnation tank away from the reaction kettle, the second conveyor belt is used to provide flax for the carrier in the impregnation tank, a first conveyor belt is further provided on one side of the first conveyor rail and the second conveyor rail, the first conveyor belt is used to receive the carrier diverted from the second conveyor rail.

[0006] Furthermore, the carrier comprises a shaft tube, the outer wall of which is equidistantly sleeved with a plurality of middle end rings from top to bottom, an upper end ring is arranged on the upper side of the middle end ring at the top, and a lower end ring is arranged on the lower side of the middle end ring at the bottom, a rotating ring and a spiral slide groove are arranged on the top of the middle end ring and the lower end ring, a rotating groove matching the rotating ring and a spiral slide column matching the spiral slide groove are arranged on the bottom of the middle end ring and the upper end ring, a plurality of the middle end rings are limited in axial displacement by connection between the rotating ring and the rotating groove, a plurality of the middle end rings are limited in rotation in the circumferential direction by connection between the spiral slide groove and the spiral slide column, a tensioning spring is further clamped between the rotating groove and the rotating ring of adjacent middle end rings, and the tensioning spring has an elastic force to drive adjacent middle end rings away from each other; The lower end ring is fixed to the bottom of the shaft tube, the top of the shaft tube is provided with a transmission shaft head, the bottom of the transmission shaft head is fixed with a limit slide post, the top of the shaft tube is provided with a limit groove corresponding to the limit slide post, a return spring is also fixed between the limit slide post and the limit groove, and the upper end ring is fixed to the transmission shaft head; A number of clamps evenly spaced at equal angles are arranged between adjacent middle end rings.

[0007] Furthermore, the shaft tube is a hollow structure, a docking port is provided at the bottom of the shaft tube, the reactor comprises an outer shell and an inner reactor body, and a feeding rotating seat matched with the docking port is provided at the bottom of the inner reactor body; A sealing ring is also provided at the bottom of the middle end ring at the connection position of the spiral sliding column. After the adjacent middle end rings are squeezed together, they are sealed by the sealing ring to form a complete guide tube body. The bottom of the middle end ring is also provided with a plurality of injection holes evenly distributed at equal angles. The injection holes connect the inner and outer sides of the guide tube body. The outer wall of the shaft tube is provided with a plurality of penetrating secondary filter grilles. The secondary filter grilles are used to connect the inner side of the shaft tube with the inner side of the guide tube body. Furthermore, the reactor further comprises a circulation pump, the output end of the circulation pump is connected to the feeding rotating seat, a filter unit is arranged between the bottom of the inner kettle body and the outer kettle body, the bottom of the inner kettle body is connected to the input end of the filter unit through a reflux hole, and the output end of the filter unit is connected to the input end of the circulation pump through a reflux pipe; An electric heating unit is also provided between the outer shell and the inner kettle body.

[0008] Furthermore, a kettle cover is provided on one side of the top of the outer shell, a separation motor is fixed on the kettle cover, a spline shaft is fixed to the output end of the separation motor, and a spline groove matching the spline shaft is provided on the top of the transmission shaft head.

[0009] Further, the clamp includes two groups of assembly plates symmetrically arranged in an upper and lower direction, and the opposite sides of the two groups of assembly plates are provided with clamping inner plates, and the opposite sides of the two groups of clamping inner plates are fixed with anti-slip teeth, and one end of the two groups of clamping inner plates is flexibly connected to one side of the adjacent assembly plate, and a spring plate is fixed between the other ends of the two groups of clamping inner plates; Elastic side plates are fixed on both sides of the assembly plate.

[0010] Furthermore, the gap planes on one side opposite to the two groups of clamping inner plates are arranged obliquely to the horizontal plane, and the spring plate has an elastic force to drive the two groups of clamping inner plates away from each other; The side away from the assembly plate is provided with an assembly slot, and the upper and lower sides of the middle end ring are provided with assembly buckles matched with the assembly slot.

[0011] Furthermore, the output end of the second conveyor belt is provided with a pushing shovel for pushing the flax into the clamp, the pushing shovel is driven by a servo motor to reciprocate, the pushing shovel is a V-shaped structure in cross section, the bottom of the pushing shovel is a flexible structure, and the middle of the pushing shovel is provided with a docking notch corresponding to the clamp.

[0012] Furthermore, a clamping groove is provided on the top of the transmission shaft head, and the transfer mechanism includes a rail trolley slidably connected to the first conveying rail or the second conveying rail, a lifting mechanism is provided on one side of the rail trolley, and a clamping mechanism matching the clamping groove is provided on the output end of the lifting mechanism.

[0013] Furthermore, a plurality of clamping jigs are fixed on the first conveyor belt at equal intervals, and the clamping jigs are used to clamp the docking port of the shaft tube.

[0014] Compared with the prior art, the advantages of this application are: The present invention can realize the orderly transfer of flax between the impregnation tank, the reactor and the cleaning tank through the cooperation between the first conveyor rail and the second conveyor rail with the transfer mechanism and the carrier with the middle end ring and the clamp. The flax is clamped by the clamp to perform chemical separation operation in a rotating state in the reactor, which can effectively enhance the full contact between the chemical solvent and the flax, is not easy to damage the separated fibers, can automatically clamp the flax and automatically separate the flax, is convenient for loading and unloading, effectively improves the overall efficiency and quality of flax fiber extraction, has market prospects, and is suitable for promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of this application; Figure 2 It is a side structural schematic diagram of this application; Figure 3 It is a schematic diagram of the cross-sectional structure of the reactor proposed in this application; Figure 4 A schematic diagram of the top structure of the carrier proposed in this application; Figure 5 A schematic diagram of the bottom structure of the vehicle proposed in this application; Figure 6 It is a schematic diagram of the partial structure of the vehicle proposed in this application; Figure 7 is a schematic diagram of the top cross-sectional structure of the carrier proposed in this application; Figure 8 This is a schematic diagram of the top structure of the middle end ring proposed in this application; Fig. 9 This is a schematic diagram of the bottom structure of the middle end ring proposed in this application; Fig.10 It is a schematic diagram of the rotating state of the carrier clamping flax proposed in this application; Fig.11 It is a schematic diagram of the structure of the clamp proposed in this application; Fig.12 A schematic diagram of the internal structure of the clamp proposed in this application; Fig.13 It is a schematic diagram of the transverse cross-sectional structure of the clamp proposed in this application; Fig.14 It is a schematic diagram of the cross-sectional structure of the clamp proposed in this application when clamping flax; Fig.15 It is a schematic diagram of the cross-sectional structure of the clamp proposed in the present application when loosening flax; Fig.16 A schematic diagram of the flow direction of the chemical solvent inside the shaft tube proposed in this application; Fig.17 for Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0016] Description of the numbers in the figure: 1. Reactor; 11. Outer shell; 12. Reactor cover; 121. Separation motor; 122. Spline shaft; 13. Electric heating unit; 14. Inner reactor; 141. Reflux hole; 142. Feeding rotary seat; 15. Filter unit; 16. Circulation pump; 161. Reflux pipe; 2. First conveyor rail; 3. Second conveyor rail; 4. Dipping tank; 5. First conveyor belt; 51. Clamping fixture; 6. Cleaning tank; 7. Second conveyor belt; 71. Pushing shovel; 72. Butt joint; 8. Transfer mechanism; 81. Track trolley; 82. Lifting mechanism; 83. Gripping mechanism; 9. Carrier; 901. Tension spring; 91. Upper end ring; 92. Middle end ring; 921. Assembly buckle; 922. Spiral slide column; 9221. Sealing ring; 923. Rotation groove; 924. Spiral slide groove; 925. Rotation ring; 93. Lower end ring; 94. Shaft tube; 941. Docking port; 942. Secondary filter grille; 95. Transmission shaft head; 951. Spline groove; 952. Clamping groove; 953. Limit slide column; 954. Return spring; 96. Clamp; 961. Assembly plate; 962. Assembly card slot; 963. Elastic side plate; 964. Clamping inner plate; 965. Anti-slip teeth; 966. Spring plate; 97. Injection hole; 10. Flax. DETAILED DESCRIPTION

[0017] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0018] Embodiment 1: The present invention provides a flax fiber extraction device, see Figure 1 - Fig.17 , including a pretreatment unit, a chemical separation unit and a post-treatment unit, the pretreatment unit including an impregnation tank 4 for impregnating flax 10 for pretreatment, the chemical separation unit including a reaction kettle 1 for chemical separation operation on flax 10, and the post-treatment unit including a cleaning tank 6 for cleaning and neutralizing flax 10; It should be noted that the impregnation tank 4 is filled with an impregnation solution containing a surfactant, and the pH value is between 5-6, so that the stripped flax stems are fully softened, and the non-fibrous substances such as colloid around the fibers can be effectively decomposed, which facilitates the subsequent chemical separation operation.

[0019] The reactor 1 is a container with pressure and high temperature resistance. The reactor 1 is filled with chemical reagents for dissolving impurities such as pectin, lignin, hemicellulose, etc. in flax. Specifically, the chemical reagents are sodium hydroxide, oxalic acid, and hydrogen peroxide mixed in a ratio of 2:1:5.

[0020] The cleaning tank 6 is filled with flowing clean water to ensure that the chemical reagents remaining on the fiber can be fully removed, thereby preventing the residual reagents from adversely affecting the subsequent processing performance and preservation of the fiber.

[0021] See also Figure 1 - Figure 2 In order to meet the needs of continuous extraction of multiple batches of flax fibers, multiple groups of reactors 1 are arranged at equal distances, and each reactor 1 is provided with a detachable carrier 9 for clamping flax 10.

[0022] See also Figure 4 - Fig.10 Specifically, the carrier 9 includes a shaft tube 94, and a plurality of middle end rings 92 are sleeved on the outer wall of the shaft tube 94 at equal intervals from top to bottom. An upper end ring 91 is provided on the upper side of the middle end ring 92 at the top, and a lower end ring 93 is provided on the lower side of the middle end ring 92 at the bottom. A rotating ring 925 and a spiral groove 924 are provided on the top of the middle end ring 92 and the lower end ring 93, and a rotating groove 923 matching the rotating ring 925 and a spiral groove 924 are provided on the bottom of the middle end ring 92 and the upper end ring 91. The spiral slide 924 matches the spiral slide post 922, and the middle end rings 92 are connected with the rotating groove 923 through the rotating ring 925 to limit the axial displacement, and the middle end rings 92 are connected with the spiral slide post 922 through the spiral slide 924 to limit the circumferential rotation. A tension spring 901 is also clamped between the rotating groove 923 and the rotating ring 925 of adjacent middle end rings 92, and the tension spring 901 has an elastic force to drive the adjacent middle end rings 92 away from each other; The lower end ring 93 is fixed to the bottom of the shaft tube 94, and a transmission shaft head 95 is provided on the top of the shaft tube 94. A limiting slide post 953 is fixed to the bottom of the transmission shaft head 95, and a limiting groove corresponding to the limiting slide post 953 is provided on the top of the shaft tube 94. A return spring 954 is also fixed between the limiting slide post 953 and the limiting groove. The upper end ring 91 is fixed on the transmission shaft head 95; a number of clamps 96 evenly distributed at equal angles are provided between adjacent middle end rings 92.

[0023] The flax 10 is clamped between each adjacent middle end ring 92 by a clamp 96. When an external force drives the carrier 9 to rotate in the reactor 1, on the one hand, the flax 10 clamped by the clamp 96 is kept in a radially straight state by centrifugal force, so that the upper and lower adjacent flax 10 maintain a relative gap, thereby maintaining full contact between the flax 10 and the chemical solvent in the reactor 1, thereby improving the chemical treatment efficiency. On the other hand, by utilizing the rotation of the carrier 9, impurities such as pectin that are not fully dissolved on the flax 10 can be separated from the fiber body by centrifugal force, thereby further improving the chemical separation efficiency.

[0024] For further information, see Figure 5 - Figure 7 The shaft tube 94 is a hollow structure, and a docking port 941 is provided at the bottom of the shaft tube 94. The reactor 1 comprises an outer shell 11 and an inner kettle body 14, and a feeding rotating seat 142 matching with the docking port 941 is provided at the bottom of the inner kettle body 14; For details, please refer to Fig.16A sealing ring 9221 is also provided at the bottom of the middle end ring 92 at the connection position of the spiral sliding column 922. After the adjacent middle end rings 92 are squeezed together, they are sealed by the sealing ring 9221 to form a complete guide tube body. A plurality of injection holes 97 are also provided at the bottom of the middle end ring 92 at equal angles. The injection holes 97 connect the inner and outer sides of the guide tube body. A plurality of penetrating secondary filter grilles 942 are provided on the outer wall of the shaft tube 94. The secondary filter grilles 942 are used to connect the inner side of the shaft tube 94 with the inner side of the guide tube body. The reactor 1 further includes a circulation pump 16, the output end of which is connected to the feed rotating seat 142, a filter unit 15 is provided between the bottom of the inner kettle body 14 and the outer kettle body 11, the bottom of the inner kettle body 14 is connected to the input end of the filter unit 15 through a reflux hole 141, and the output end of the filter unit 15 is connected to the input end of the circulation pump 16 through a reflux pipe 161; See also Figure 3 When the undissolved pectin and other impurities separated from the flax 10 clamped on the carrier 9 are separated by centrifugal force, the undissolved impurities in the inner kettle body 14 are transported to the filter unit 15 through the reflux hole 141 by the pumping of the circulating pump 16, and the chemical solvent is transported to the shaft tube 94 through the feeding rotating seat 142 after being filtered by the filter unit 15. In this process, the chemical solvent filtered by the filter unit 15 enters the inner side of the guide tube body composed of the middle end ring 92 through the secondary filtering grid 942, and is transported to the gap between the middle end ring 92 through the injection hole 97. The pumping force of the circulating pump 16 and the centrifugal force of the rotation of the carrier 9 are used to disperse the chemical solvent on the rotating flax 10, further ensuring the sufficient contact between the chemical solvent and the flax 10, and effectively improving the chemical treatment efficiency.

[0025] See also Figure 3 An electric heating unit 13 is also provided between the outer shell 11 and the inner kettle 14. The electric heating unit 13 can be used to heat the chemical solvent in the inner kettle 14 to ensure that the temperature in the inner kettle 14 is uniform and can quickly reach the set temperature, so that the chemical separation reaction can be carried out under optimal temperature and pressure conditions, accelerate the reaction rate, improve the impurity removal effect, and at the same time ensure the quality of the flax fiber.

[0026] Please note that Figure 3 and Figure 7 In order to maintain the airtightness of the inner kettle body 14, a kettle cover 12 is provided on one side of the top of the outer shell 11. The sealing action of the kettle cover 12 is driven by a flip motor. A separation motor 121 is fixed on the kettle cover 12. A spline shaft 122 is fixed to the output end of the separation motor 121. A spline groove 951 matching the spline shaft 122 is provided on the top of the transmission shaft head 95.

[0027] When the carrier 9 holding the flax 10 is transported to the reactor 1 and the docking port 941 is kept aligned with the feeding rotating seat 142, the reactor cover 12 is automatically closed by the flip cover motor. During this process, the spline shaft 122 is aligned with the spline groove 951 on the transmission shaft head 95. When the spline shaft 122 drives the transmission shaft head 95 to rotate in the clockwise direction, the transmission shaft head 95 provides a rotational force for the upper end ring 91, so that the spiral slide column 922 between the upper end ring 91, the middle end ring 92 and the lower end ring 93 is rotated in the corresponding spiral slide groove 924, thereby making several adjacent middle end rings 92 approach to each other, so that the adjacent middle end rings 92 are squeezed and sealed by the sealing ring 9221 to form a complete guide tube body, thereby ensuring the pressure of the circulating pump 16 to pump the chemical solvent to the injection hole 97.

[0028] For further information, see Fig.11 - Fig.15 The fixture 96 includes two groups of assembly plates 961 symmetrically arranged in an upper and lower direction, and a clamping inner plate 964 is provided on opposite sides of the two groups of assembly plates 961, and anti-slip teeth 965 are fixed on opposite sides of the two groups of clamping inner plates 964. One end of the two groups of clamping inner plates 964 is flexibly connected to one side of the adjacent assembly plate 961, and a spring plate 966 is fixed between the other ends of the two groups of clamping inner plates 964; Elastic side plates 963 are fixed on both sides of the assembly plate 961. In order to prevent the adjacent clamps 96 from interfering with the adjacent clamped flax 10 after clamping the flax 10, when the two groups of middle end rings 92 are close to each other to the maximum stroke, the two groups of clamping inner plates 964 in the same clamp 96 are relatively merged to keep the sides aligned. When the two groups of middle end rings 92 are separated from each other to the maximum stroke, the two groups of clamping inner plates 964 in the same clamp 96 are separated from each other and maintained in a staggered state in the circumferential direction, further improving the convenience of material withdrawal. The gap plane on one side opposite to the clamping inner plate 964 is inclined to the horizontal plane, and the spring plate 966 has an elastic force to drive the two groups of clamping inner plates 964 to separate from each other.

[0029] When the carrier 9 is in the state of waiting for loading, that is, when the transmission shaft head 95 is not subjected to the clockwise rotation force, the adjacent middle end rings 92 are kept separated by the elastic force of the tension spring 901, and the relative clamping inner plates 964 are kept separated by the elastic force of the spring plate 966, so that the anti-slip teeth 965 are away from the ports of the elastic side plates 963, and the flax 10 clamped between the clamps 96 is initially fixed by the relative elastic side plates 963; When the transmission shaft head 95 is subjected to a clockwise rotational force, the adjacent middle end ring 92 utilizes the positive screwing cooperation of the spiral slide column 922 and the spiral slide groove 924 to approach and extrude, so that the relative clamping inner plates 964 approach each other. At this time, the anti-slip teeth 965 are close to the ends of the elastic side plates 963, and the adjacent anti-slip teeth 965 are pressed onto the flax 10. The relative elastic side plates 963 squeeze and deform to assist in clamping the flax 10, thereby completing the complete locking of the flax 10 and preventing the flax 10 from falling off during the subsequent rotation of the carrier 9.

[0030] Similarly, after the carrier 9 clamps the flax 10 and completes the chemical separation action in the reactor 1, it enters the cleaning tank 6, and the transfer mechanism 8 is used to drive the transmission shaft head 95 to rotate counterclockwise. At this time, the adjacent and squeezed middle end ring 92 is separated under the reverse rotation cooperation of the spiral slide column 922 and the spiral slide groove 924, so that the clamping inner plate 964 is separated and maintained away from the port of the elastic side plate 963. At the same time, the elastic side plate 963 uses its own elastic force to restore its original state, pushing the fibers clamped in the anti-stripping teeth 965 away from the anti-stripping teeth 965, and cooperating with the counterclockwise rotation of the carrier 9, the fibers clamped between the clamps 96 are automatically separated to the cleaning tank 6, completing the material withdrawal action. It has an automatic material withdrawal function, can effectively prevent the chemically separated fibers from being hung on the anti-stripping teeth 965, and is highly convenient for withdrawing materials.

[0031] The side away from the assembly plate 961 is provided with an assembly slot 962, and the upper and lower sides of the middle end ring 92 are provided with assembly buckles 921 that match the assembly slot 962. A first conveyor rail 2 is provided between the impregnation tank 4 and the reactor 1, a second conveyor rail 3 is provided between the reactor 1 and the cleaning tank 6, and a transfer mechanism 8 for intermediate transfer vehicles 9 is provided on the first conveyor rail 2 and the second conveyor rail 3. A second conveyor belt 7 is provided on the side of the impregnation tank 4 away from the reactor 1, and the second conveyor belt 7 is used to provide flax 10 for the carrier 9 in the impregnation tank 4. A first conveyor belt 5 is also provided on one side of the first conveyor rail 2 and the second conveyor rail 3, and the first conveyor belt 5 is used to receive the carrier 9 diverted from the second conveyor rail 3.

[0032] See also Figure 1 The output end of the second conveyor belt 7 is provided with a pushing shovel 71 for pushing the flax 10 into the clamp 96. The pushing shovel 71 is driven by a servo motor to reciprocate. The pushing shovel 71 is a V-shaped structure in cross section. The bottom of the pushing shovel 71 is a flexible structure. The middle of the pushing shovel 71 is provided with a docking notch 72 corresponding to the clamp 96. The top of the transmission shaft head 95 is also provided with a clamping groove 952. See also Figure 2 and Fig.17The transfer mechanism 8 includes a rail trolley 81 slidably connected to the first conveying rail 2 or the second conveying rail 3. A lifting mechanism 82 is provided on one side of the rail trolley 81. A clamping mechanism 83 matching the clamping groove 952 is provided on the output end of the lifting mechanism 82. The clamping mechanism 83 is driven to rotate by a servo motor. A plurality of clamping fixtures 51 are evenly fixed on the first conveyor belt 5. The clamping fixtures 51 are used to clamp the docking interface 941 of the shaft tube 94.

[0033] When the second conveyor belt 7 conveys the flax 10 arranged in a straight and equidistant manner to the push shovel 71, the transfer mechanism 8 on the first conveyor rail 2 clamps the empty carrier 9 to the top of the impregnation tank 4 using the clamp mechanism 83, and cooperates with the servo motor to slowly rotate counterclockwise and at equal angles. At this time, the push shovel 71 pushes an equal amount of flax 10 into the clamp 96. After the bottom group of middle-end rings 92 are clamped, the lifting mechanism 82 drives the carrier 9 to move down and gradually immerse it in the impregnation tank 4, and at the same time, the loading action of the upper layer of middle-end rings 92 is carried out. When the loading is completed, the transfer mechanism 8 drives the carrier 9 to move horizontally on the first conveyor rail 2, so that the impregnation operation is carried out in the impregnation tank 4. In this process, the servo motor can be used to drive the carrier 9 to rotate clockwise to keep the flax 10 in full contact with the impregnation liquid; When the immersion operation of the designed length is completed in the immersion tank 4, the transfer mechanism 8 on the first conveyor rail 2 is transported to the top of the empty reactor 1, and the lifting mechanism 82 is used to move downward so that the docking port 941 is aligned with the feed rotating seat 142 to perform chemical separation operations. At this time, the empty transfer mechanism 8 on the first conveyor rail 2 runs to the side of the first conveyor belt 5, clamps the empty carrier 9 from the clamping fixture 51, and runs to the immersion tank 4 for the next loading action.

[0034] After the chemical separation operation is completed in the reactor 1, the reactor cover 12 is opened, and the transfer mechanism 8 on the second conveying rail 3 clamps and lifts the carrier 9 holding the fiber as a whole, and transports it to the cleaning tank 6 for cleaning and neutralization. At the same time, the transfer mechanism 8 drives the carrier 9 to rotate counterclockwise to complete the fiber withdrawal operation. At this time, the transfer mechanism 8 clamps the empty carrier 9 and runs to the side of the first conveyor belt 5, and aligns the empty carrier 9 with the clamping fixture 51 to realize the recycling of the carrier 9.

[0035] The present invention can realize the orderly transfer of flax 10 between the impregnation tank 4, the reactor 1 and the cleaning tank 6 by the cooperation between the first conveying rail 2 and the second conveying rail 3 with the transfer mechanism 8 and the carrier 9 with the middle end ring 92 and the clamp 96. The flax 10 is clamped by the clamp 96 to perform chemical separation in a rotating state in the reactor 1, which can effectively enhance the full contact between the chemical solvent and the flax 10, and is not easy to damage the separated fibers. The flax 10 can be automatically clamped and separated, and the loading and unloading is convenient, which effectively improves the overall efficiency and quality of flax fiber extraction. The present invention has market prospects and is suitable for promotion and application.

[0036] The above is only the best implementation method adopted by this application in combination with current actual needs, but the protection scope of this application is not limited to this.

Claims

1. A flax fiber extraction device, comprising a pretreatment unit, a chemical separation unit and a post-treatment unit, characterized in that: The pretreatment unit comprises an impregnation tank (4) for performing an impregnation pretreatment on the flax (10); the chemical separation unit comprises a reaction kettle (1) for performing a chemical separation operation on the flax (10); and the post-treatment unit comprises a cleaning tank (6) for performing a cleaning and neutralization operation on the flax (10); A plurality of groups of reaction kettles (1) are arranged at equal intervals. Each of the reaction kettles (1) is provided with a detachable carrier (9), and the carrier (9) is used to clamp flax (10). A first conveyor rail (2) is provided between the impregnation tank (4) and the reaction kettle (1), and a second conveyor rail (3) is provided between the reaction kettle (1) and the cleaning tank (6). A transfer mechanism (8) for transferring the carrier (9) is provided on the first conveyor rail (2) and the second conveyor rail (3). A second conveyor belt (7) is provided on a side of the impregnation tank (4) away from the reaction kettle (1). The second conveyor belt (7) is used to provide flax (10) for the carrier (9) in the impregnation tank (4). A first conveyor belt (5) is further provided on one side of the first conveyor rail (2) and the second conveyor rail (3). The first conveyor belt (5) is used to receive the carrier (9) diverted from the second conveyor rail (3).

2. A flax fiber extraction device according to claim 1, characterized in that: The carrier (9) comprises a shaft tube (94), the outer wall of which is evenly spaced from top to bottom and sleeved with a plurality of middle end rings (92), an upper end ring (91) being arranged on the upper side of the middle end ring (92) at the top, and a lower end ring (93) being arranged on the lower side of the middle end ring (92) at the bottom, a rotating ring (925) and a spiral groove (924) being arranged on the top of the middle end ring (92) and the lower end ring (93), and a rotating groove (923) matching the rotating ring (925) and a spiral groove (924) being arranged on the bottom of the middle end ring (92) and the upper end ring (91). A spiral slide column (922) matches the rotary groove (924), a plurality of the middle end rings (92) are connected to the rotary groove (923) by a rotating ring (925) to limit axial displacement, a plurality of the middle end rings (92) are connected to the spiral slide column (922) by a spiral slide groove (924) to limit circumferential rotation, and a tensioning spring (901) is clamped between the rotary groove (923) and the rotary ring (925) of adjacent middle end rings (92), and the tensioning spring (901) has an elastic force to drive adjacent middle end rings (92) away from each other; The lower end ring (93) is fixed to the bottom of the shaft tube (94); a transmission shaft head (95) is provided on the top of the shaft tube (94); a limit slide post (953) is fixed to the bottom of the transmission shaft head (95); a limit groove corresponding to the limit slide post (953) is provided on the top of the shaft tube (94); a return spring (954) is also fixed between the limit slide post (953) and the limit groove; and the upper end ring (91) is fixed to the transmission shaft head (95); A plurality of clamps (96) evenly spaced at equal angles are provided between adjacent middle end rings (92).

3. A flax fiber extraction device according to claim 2, characterized in that: The shaft tube (94) has a hollow structure inside, and a docking port (941) is provided at the bottom of the shaft tube (94). The reaction kettle (1) comprises an outer shell (11) and an inner kettle body (14), and a feeding rotating seat (142) matching with the docking port (941) is provided at the bottom of the inner kettle body (14); A sealing ring (9221) is also provided at the bottom of the middle end ring (92) at the connection position of the spiral slide column (922); adjacent middle end rings (92) are squeezed together and sealed by the sealing ring (9221) to form a complete flow guide tube body; a plurality of injection holes (97) are also provided at the bottom of the middle end ring (92) at equal angles; the injection holes (97) are connected to the inside and outside of the flow guide tube body; a plurality of penetrating secondary filter grilles (942) are provided on the outer wall of the shaft tube (94); the secondary filter grilles (942) are used to connect the inside of the shaft tube (94) with the inside of the flow guide tube body.

4. A flax fiber extraction device according to claim 3, characterized in that: The reaction kettle (1) further comprises a circulation pump (16), the output end of the circulation pump (16) being connected to the feeding rotating seat (142), a filter unit (15) being arranged between the bottom of the inner kettle body (14) and the outer kettle body (11), the bottom of the inner kettle body (14) being connected to the input end of the filter unit (15) via a reflux hole (141), and the output end of the filter unit (15) being connected to the input end of the circulation pump (16) via a reflux pipe (161); An electric heating unit (13) is also provided between the outer shell (11) and the inner kettle (14).

5. The flax fiber extraction device according to claim 3, characterized in that: A kettle cover (12) is provided on one side of the top of the outer shell (11), a separation motor (121) is fixed on the kettle cover (12), a spline shaft (122) is fixed to the output end of the separation motor (121), and a spline groove (951) matching the spline shaft (122) is provided on the top of the transmission shaft head (95).

6. A flax fiber extraction device according to claim 2, characterized in that: The clamp (96) comprises two groups of assembly plates (961) symmetrically arranged in an upper and lower direction, a clamping inner plate (964) is provided on opposite sides of the two groups of assembly plates (961), anti-slip teeth (965) are fixed on opposite sides of the two groups of clamping inner plates (964), one end of the two groups of clamping inner plates (964) is flexibly connected to one side of the adjacent assembly plate (961), and a spring plate (966) is fixed between the other ends of the two groups of clamping inner plates (964); Elastic side plates (963) are fixed on both sides of the assembly plate (961).

7. A flax fiber extraction device according to claim 6, characterized in that: The gap planes on one side opposite to the two groups of clamping inner plates (964) are arranged obliquely to the horizontal plane, and the spring plate (966) has an elastic force that drives the two groups of clamping inner plates (964) to move away from each other; The assembly plate (961) is provided with an assembly slot (962) on one side away from the assembly plate (961), and the middle end ring (92) is provided with an assembly buckle (921) matching the assembly slot (962) on both the upper and lower sides.

8. The flax fiber extraction device according to claim 6, characterized in that: The output end of the second conveyor belt (7) is provided with a pushing shovel (71) for pushing the flax (10) into the clamp (96); the pushing shovel (71) is driven by a servo motor to reciprocate; the pushing shovel (71) is a V-shaped structure in cross section; the bottom of the pushing shovel (71) is a flexible structure; and a docking notch (72) corresponding to the clamp (96) is provided in the middle of the pushing shovel (71).

9. The flax fiber extraction device according to claim 2, characterized in that: The top of the transmission shaft head (95) is also provided with a clamping groove (952), and the transfer mechanism (8) comprises a rail trolley (81) slidably connected to the first conveying rail (2) or the second conveying rail (3), a lifting mechanism (82) is provided on one side of the rail trolley (81), and a clamping claw mechanism (83) matching the clamping groove (952) is provided on the output end of the lifting mechanism (82).

10. The flax fiber extraction device according to claim 3, characterized in that: A plurality of clamping jigs (51) are fixed at equal intervals on the first conveyor belt (5), and the clamping jigs (51) are used to clamp the docking port (941) of the shaft tube (94).

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