Reaction equipment and process for preparing chemical fiber fabric raw material fiber

Abstract

The invention relates to the technical field of preparation of chemical fiber filaments, in particular to reaction equipment and a process for preparing chemical fiber fabric raw material fibers, and the reaction equipment is characterized in that an inner taper pipe is provided with a feeding pipe externally connected with a screw extruder, and the feeding pipe feeds materials into an inner cavity at the lower end of an inner mold frame; a micro hole communicated with the feeding pipe and an overflow hole communicated with the overflow ring groove are formed in the upper end and the lower end of the inner die frame respectively, and the inner diameter of the micro hole and the inner diameter of the overflow hole are both smaller than the outer diameter of the grinding ball. The spinning melt or solution is finely ground through the grinding balls densely distributed in the inner mold frame, so that the spinning melt or solution passes through the gaps of the grinding balls, the adhesion strength is reduced, the fluidity is improved, rapid forming after extrusion is facilitated, the prepared filaments are high in toughness, meanwhile, upward centrifugal movement of raw materials is formed in cooperation with stirring, and the spinning quality is improved. And the purpose of improving the extrusion discharging strength is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of preparation of chemical fiber filaments, in particular to a reaction device and process for preparing raw fiber of chemical fiber fabric. Background Art

[0002] Chemical fiber fabrics are made by spinning chemical fiber filaments, and chemical fibers can be divided into regenerated fibers and synthetic fibers according to the source of raw materials, and fibers made from natural or synthetic polymers. Common textiles, such as viscose cloth, polyester khaki, nylon stockings, acrylic wool and polypropylene carpets, are all made of chemical fibers.

[0003] In the production process of chemical fiber, natural or synthetic polymers or inorganic substances are usually first made into spinning melts or solutions, and then filtered and metered, and extruded from spinnerets (plates) into liquid streams, which are then solidified into fibers. The fibers at this time are called primary fibers. Their mechanical properties are very poor and cannot be used directly. They must go through a series of post-processing procedures to meet the requirements of textile processing and use. Post-processing mainly involves stretching and heat setting the fibers to improve their mechanical properties and dimensional stability.

[0004] In the actual preparation process, a spiral extrusion device is used to stir the spinning melt or solution, and then pass it through a perforated die to form filaments. However, after the extruded raw material is transported and filtered, the extrusion force is reduced, and the efficiency is low and the molding quality is poor under the pressure of extruding it through the die hole to form filaments. It takes a period of stabilization before the material can be discharged. Since the spiral extrusion equipment can only stir the spinning melt or solution and cannot perform fine grinding, the melt or solution has strong adhesion, is easy to aggregate, and the extruded filaments have poor toughness. Summary of the invention

[0005] The object of the present invention is to provide a reaction device and process for preparing raw fiber of chemical fiber fabric to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A reaction device for preparing raw fiber of chemical fiber fabric comprises an outer cone tube and an inner cone tube, the outer cone tube and the inner cone tube are sleeved with each other, and a mold plate is installed at the lower end of the outer cone tube, a plurality of groups of mold holes are arranged on the mold plate, an overflow ring groove connected to the mold holes is arranged between the outer cone tube and the inner cone tube, an inner mold frame is arranged at the lower end of the inner cavity of the inner cone tube, a plurality of groups of grinding balls are arranged in the inner mold frame for rotating and stirring by stirring blades, a feed pipe of an externally connected screw extruder is arranged on the inner cone tube, the feed pipe feeds into the lower inner cavity of the inner mold frame, and micropores connected to the feed pipe and overflow holes connected to the overflow ring groove are respectively arranged at the upper and lower ends of the inner mold frame, and the inner diameters of the micropores and the overflow holes are both smaller than the outer diameter of the grinding balls.

[0007] Preferably, a mounting ring groove is provided at the lower end of the outer cone tube, the outer edge of the upper end of the mold plate is threadedly rotatably mounted in the mounting ring groove, and the inner diameter of the port at one end of the mold hole connected to the overflow ring groove is larger than the inner diameter of the port at the other end.

[0008] Preferably, the inner cavity at the upper end of the inner cone tube is set as an overflow cavity, and the inner cavity at the lower end of the inner cone tube is set as a mounting groove. The upper end of the mounting groove is provided with a stepped ring groove, and the inner mold frame is set in the mounting groove. The upper end of the inner mold frame is pressed and fixed on the stepped ring groove. A gap is left between the lower end of the inner mold frame and the inner wall of the lower end of the mounting groove, and the gap is set as a feed cavity. The feed pipe is connected to the feed cavity through an extension pipe.

[0009] Preferably, the outer edge of the upper end of the inner cone tube is provided with a plurality of groups of positioning screw hole tubes distributed in a circular array, and the plurality of groups of positioning screw hole tubes are connected by a double-layer ring network. A sealing cover is provided at the upper end of the inner cone tube, and the sealing cover is provided with mounting holes corresponding to the positioning screw hole tubes one by one, and fixing bolts are inserted in the mounting holes, and the lower ends of the fixing bolts are threadably connected to the positioning screw hole tubes, and the overflow inner cavity is laterally connected to the overflow ring groove through the double-layer ring network.

[0010] Preferably, a plurality of side grooves distributed in a circular array are provided on the arc inner wall of the upper end of the outer conical tube, and the side grooves extend vertically to the upper end of the sealing cover. A plurality of columns corresponding to the side grooves are provided on the upper end of the sealing cover, and a slider sliding along the side grooves is vertically provided on the column, and an inner hole is provided on the slider, and a screw hole penetrating the outer wall of the upper end of the outer conical tube is provided on the inner wall of the side groove, and the slider is fixed by a locking bolt which is rotated and inserted along the thread of the screw hole.

[0011] Preferably, a detachable bottom plate is provided in the middle of the lower end of the inner mold frame, a through hole is provided in the middle of the bottom plate to cooperate with the extension tube, the inner cavity of the inner mold frame is set as a grinding cavity, multiple groups of grinding balls are placed in the grinding cavity, multiple groups of micropores are provided on the bottom plate, and the micropores connect the feed cavity and the grinding cavity.

[0012] Preferably, the upper end of the inner mold frame is provided with a plurality of overflow holes which are staggered with the micropores, and the plurality of overflow holes connect the grinding inner cavity and the overflow inner cavity. A rotating tube which is driven by a driving assembly is provided in the middle of the inner mold frame, and the lower end of the rotating tube extends into the grinding inner cavity, and a rotating groove is provided at the upper end of the grinding inner cavity. A stirring blade is fixedly sleeved at the lower end of the rotating tube, and the upper end of the stirring blade rotates along the rotating groove, and the stirring blades of the stirring blade extend into the gap between the plurality of grinding balls.

[0013] Preferably, the driving assembly includes a driving gear, a driven gear and a motor, the upper end plate of the rotating tube is pressed onto the sealing cover, and the outer wall of the end plate is fixedly sleeved with a driven gear, the upper end of the sealing cover is provided with a driving gear driven by a motor, the driving gear and the driven gear are meshingly connected, a limiting end plate is provided at the upper end of the extension tube, the limiting end plate is fixedly connected to the end of the feed pipe, and the outer edge of the limiting end plate is provided with a wing ring extending downward and fitting onto the upper end surface of the driven gear.

[0014] Preferably, the extension tube is inserted into the rotating tube, and the rotating tube and the extension tube are rotatably connected via a bearing, a sealing gasket is fixedly installed at the lower end of the feed cavity, a plurality of groups of annular sealing grooves are provided at the upper end of the sealing gasket, and a sealing ring cooperating with the sealing groove is provided at the lower end of the inner mold frame.

[0015] A process implemented according to the reaction device for preparing raw fiber of chemical fiber fabric, the process comprises the following steps: Step 1: The raw materials for preparing chemical fiber fabrics are washed and dehydrated, and then placed in a screw extruder, and then heated and melted and extruded by the screw extruder; Step 2: The molten raw material after extrusion enters the inner mold frame along the feed pipe, is further ground and broken up by the grinding balls in the inner mold frame, and then moves upward under the action of centrifugal force, falls along the overflow ring groove to the mold plate, and finally flows out along the mold hole to form chemical fiber filaments.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention adds a rotating and stirring grinding inner mold frame between the existing extrusion and molding equipment, and uses the grinding balls densely distributed in the inner mold frame to achieve fine grinding of the spinning melt or solution, so that it passes through the gaps between the grinding balls, thereby reducing the adhesion strength, improving the fluidity, and facilitating rapid molding after extrusion. The prepared filaments have high toughness, and at the same time, the upward centrifugal movement of the raw materials is formed in combination with stirring, thereby achieving the purpose of improving the extrusion discharge strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the mold plate installation of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the sealing cover and the inner cone tube of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the inner cone tube of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the inner mold frame of the present invention installed in the inner cone tube; Figure 7 It is a schematic diagram of the three-dimensional structure of the sealing cover of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the inner mold frame of the present invention; Fig. 9 This is a schematic diagram of the three-dimensional structure of the base plate of the present invention being installed on the inner mold frame.

[0018] In the figure: 1, outer cone tube; 2, inner cone tube; 3, sealing cover; 4, feed cavity; 5, ring net; 6, overflow cavity; 7, side groove; 8, feed pipe; 9, rotating pipe; 10, extension pipe; 11, mold plate; 12, mold hole; 13, mounting ring groove; 14, grinding cavity; 15, grinding ball; 16, sealing pad; 17, inner mold frame; 18, overflow ring groove; 19, slider; 20, screw hole; 2 1. Locking bolt; 22. Driven gear; 23. Driving gear; 24. Bearing; 25. Motor; 26. Column; 27. Positioning screw hole tube; 28. Step ring groove; 29. ​​Mounting groove; 30. Fixing bolt; 31. Mixing blade; 32. Limiting end plate; 33. Mounting hole; 34. Overflow hole; 35. Sealing ring; 36. Bottom plate; 37. Rotating groove; 38. Through hole; 39. Micro hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figures 1 to 9 , the present invention provides a technical solution: A reaction device for preparing raw fiber of chemical fiber fabric comprises an outer cone tube 1 and an inner cone tube 2, the outer cone tube 1 and the inner cone tube 2 are sleeved with each other, and a mold plate 11 is installed at the lower end of the outer cone tube 1, and a plurality of groups of mold holes 12 are arranged on the mold plate 11, and an overflow annular groove 18 connecting the mold holes 12 is arranged between the outer cone tube 1 and the inner cone tube 2, and an inner mold frame 17 is arranged at the lower end of the inner cavity of the inner cone tube 2, and a plurality of groups of grinding balls 15 are arranged in the inner mold frame 17 for rotating and stirring by stirring blades 31.

[0021] By setting the rotation of the stirring blades 31, relative extrusion, rotation and grinding between multiple groups of grinding balls 15 are achieved, so that the spinning melt or solution is broken up into a fluid state and passes through the gaps between the grinding balls 15, thereby reducing the adhesion formed on the surface during pipeline transportation, and at the same time achieving the breakage of the solidified outer layer caused by the temperature difference between the inside and the outside during transportation, so that its texture distribution is more uniform.

[0022] The inner conical tube 2 is provided with a feed pipe 8 of an external screw extruder, and the feed pipe 8 feeds into the inner cavity at the lower end of the inner mold frame 17. The upper and lower ends of the inner mold frame 17 are respectively provided with micropores 39 connected to the feed pipe 8 and overflow holes 34 connected to the overflow ring groove 18. The inner diameters of the micropores 39 and the overflow holes 34 are both smaller than the outer diameter of the grinding balls 15.

[0023] By setting the feed pipe 8 and the micropores 39, the spirally extruded raw materials are transported from bottom to top to the inner mold frame 17. The grinding balls 15 are driven to rotate by the stirring blades 31 to form a vortex in the inner cavity of the inner mold frame 17. Under the action of centrifugal force, the ground raw materials move upward along the inner wall of the inner mold frame 17 and reach the mold hole 12 through the overflow ring groove 18. Therefore, the centrifugal force can be controlled by controlling the rotation speed of the stirring blades 31, and then the extrusion pressure of the spinning melt or solution at the mold hole 12 can be controlled to ensure the extrusion efficiency and molding quality.

[0024] Example 2: In the extrusion of Example 1, in order to realize the movement direction of the spinning melt or solution from bottom to top, a mounting groove 13 is provided at the lower end of the outer cone tube 1, and the outer edge of the upper end of the mold plate 11 is rotatably installed in the mounting groove 13 through a thread, and the inner diameter of the port at one end of the mold hole 12 connected to the overflow groove 18 is larger than the inner diameter of the port at the other end.

[0025] By providing the die hole 12 with different inner and outer openings, the raw material is fully filled at the upper end of the die hole 12, thereby avoiding leakage, ensuring the stability of the extruded material, and avoiding wire breakage.

[0026] The inner cavity at the upper end of the inner cone tube 2 is set as the overflow cavity 6, and the inner cavity at the lower end of the inner cone tube 2 is set as the mounting groove 29. The upper end of the mounting groove 29 is provided with a stepped annular groove 28. The inner mold frame 17 is set in the mounting groove 29. The upper end of the inner mold frame 17 is pressed and fixed on the stepped annular groove 28. A gap is left between the lower end of the inner mold frame 17 and the inner wall of the lower end of the mounting groove 29. The gap is set as the feed cavity 4. The feed pipe 8 is connected to the feed cavity 4 through the extension pipe 10.

[0027] By providing the installation groove 29 and the stepped annular groove 28, the inner mold frame 17 is installed in the inner cone tube 2, and then the feed cavity 4 is formed at the bottom of the inner cone tube 2 to ensure the transportation direction of the raw materials from bottom to top.

[0028] The outer edge of the upper end of the inner cone tube 2 is provided with a plurality of groups of positioning screw hole tubes 27 distributed in a circular array, and the plurality of groups of positioning screw hole tubes 27 are connected by a double-layer ring network 5. A sealing cover 3 is provided at the upper end of the inner cone tube 2, and mounting holes 33 corresponding to the positioning screw hole tubes 27 are provided on the sealing cover 3. Fixing bolts 30 are inserted into the mounting holes 33, and the lower ends of the fixing bolts 30 are threadably connected to the positioning screw hole tubes 27. The overflow inner cavity 6 is laterally connected to the overflow ring groove 18 through the double-layer ring network 5.

[0029] By setting the mounting hole 33 and the positioning screw hole tube 27, the sealing cover 3 is fixedly installed on the inner cone tube 2, thereby forming a seal on the upper end of the overflow inner cavity 6, and cooperating with the ring network 5 to ensure that the raw material flows laterally and along the overflow ring groove 18.

[0030] A plurality of side grooves 7 distributed in a circular array are arranged on the arc inner wall of the upper end of the outer cone tube 1, and the side grooves 7 extend vertically to the upper end of the sealing cover 3. A plurality of columns 26 corresponding to the side grooves 7 are arranged on the upper end of the sealing cover 3, and a slider 19 sliding along the side grooves 7 is vertically arranged on the column 26, and an inner hole is arranged on the slider 19. A screw hole 20 penetrating the outer wall of the upper end of the outer cone tube 1 is arranged on the inner wall of the side groove 7, and the slider 19 is fixed by a locking bolt 21 which is inserted and rotated along the thread of the screw hole 20.

[0031] The side groove 7 and the slider 19 are provided to ensure the positioning and sleeve connection of the inner cone tube 2 and the sealing cover 3 in the outer cone tube 1 , and the locking bolts 21 are used to realize the fixed installation in the inner cavity of the outer cone tube 1 .

[0032] A detachable bottom plate 36 is provided in the middle of the lower end of the inner mold frame 17, and a through hole 38 which cooperates with the extension tube 10 is provided in the middle of the bottom plate 36. The inner cavity of the inner mold frame 17 is set as a grinding cavity 14, and multiple groups of grinding balls 15 are placed in the grinding cavity 14. Multiple groups of micropores 39 are provided on the bottom plate 36, and the micropores 39 connect the feed cavity 4 and the grinding cavity 14.

[0033] The micropores 39 are provided to ensure that the raw materials in the feed tube 8 and the extension tube 10 move upward along the feed cavity 4 to the grinding cavity 14 .

[0034] The upper end of the inner mold frame 17 is provided with a plurality of overflow holes 34 which are staggered with the micropores 39. The plurality of overflow holes 34 connect the grinding inner cavity 14 and the overflow inner cavity 6. A rotating tube 9 which is driven to rotate by a driving assembly is provided in the middle of the inner mold frame 17. The lower end of the rotating tube 9 extends into the grinding inner cavity 14, and a rotating groove 37 is provided at the upper end of the grinding inner cavity 14. A stirring blade 31 is fixedly sleeved at the lower end of the rotating tube 9. The upper end of the stirring blade 31 rotates along the rotating groove 37. The stirring blades of the stirring blade 31 extend into the gaps between the plurality of grinding balls 15.

[0035] Through the staggered micropores 39 and overflow holes 34, the raw material enters the middle of the grinding cavity 14 along the feed cavity 4, and after sufficient grinding movement, it moves upward along the side wall of the grinding cavity 14 to the overflow cavity 6 under the action of centrifugal force.

[0036] Embodiment 3: On the basis of embodiment 2, in order to realize the driving of the grinding ball 15, the driving assembly includes a driving gear 23, a driven gear 22 and a motor 25. The upper end plate of the rotating tube 9 is pressed onto the sealing cover 3, and the outer wall of the end plate is fixedly sleeved with the driven gear 22. The upper end of the sealing cover 3 is provided with a driving gear 23 driven by the motor 25, and the driving gear 23 and the driven gear 22 are meshingly connected. A limiting end plate 32 is provided at the upper end of the extension tube 10, and the limiting end plate 32 is fixedly connected to the end of the feed tube 8, and the outer edge of the limiting end plate 32 is provided with a wing ring extending downward and fitting on the upper end surface of the driven gear 22; the extension tube 10 is inserted into the rotating tube 9, and the rotating tube 9 and the extension tube 10 are rotatably connected through the bearing 24. A sealing gasket 16 is fixedly installed at the lower end of the feed cavity 4, and a plurality of groups of annular sealing grooves are provided at the upper end of the sealing gasket 16. A sealing ring 35 matching the sealing groove is provided at the lower end of the inner mold frame 17.

[0037] By setting the coordination of the gear set, the driving of the rotating tube 9 is realized, and then the stirring blades 31 are driven to drive the grinding balls 15 to rotate. During the driving process, the rotating groove 37 is set to prevent the stirring blades 31 from being stuck by the grinding balls 15. The limiting end plate 32 is set to facilitate the installation of the Xi'an driven gear 22. The cooperation of the sealing gasket 16 and the sealing ring 35 is utilized to ensure that the raw materials driven by the spiral extrusion enter the grinding inner cavity 14 along the micropores 39.

[0038] In the actual processing process, the heated and melted spinning melt or solution enters the feed inner cavity 4 along the feed pipe 8 and the extension pipe 10, and then enters the grinding inner cavity 14 through the micropores 39. After the rotation of the stirring blades 31, the grinding balls 15 fully grind and break up the raw materials, reducing the adhesion formed on the surface during the pipeline transportation. With the driving rotation of the grinding balls 15 by the stirring blades 31, a vortex is formed in the inner cavity of the inner mold frame 17, and then under the action of centrifugal force, the ground raw materials are moved along the inner mold frame 17. The inner wall of the spinning blade 31 moves upward, and under the action of centrifugal force, moves upward along the overflow hole 34 to the overflow inner cavity 6, passes through the annular net 5 and the overflow annular groove 18 to the mold plate 11. When the raw material fills the overflow inner cavity 6 and the overflow annular groove 18, the centrifugal force will produce further extrusion force on the filled raw material, so that the raw material is extruded along the mold hole 12. Therefore, the centrifugal force can be controlled by controlling the rotation speed of the stirring blade 31, and then the extrusion pressure of the spinning melt or solution at the mold hole 12 can be controlled to ensure its extrusion efficiency and molding quality.

[0039] A process implemented by a reaction device for preparing raw fiber of chemical fiber fabrics, the process comprises the following steps: Step 1: The raw materials for preparing chemical fiber fabrics are washed and dehydrated, and then placed in a screw extruder, and then heated and melted and extruded by the screw extruder; Step 2: The molten raw material after extrusion enters the inner mold frame 17 along the feed pipe 8, is further ground and broken up by the grinding balls 15 in the inner mold frame 17, and then moves upward under the action of centrifugal force, falls along the overflow ring groove 18 to the mold plate 11, and finally flows out along the mold hole 12 to form chemical fiber filaments.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reaction device for preparing raw fiber of chemical fiber fabric, comprising an outer cone tube (1) and an inner cone tube (2), wherein the outer cone tube (1) and the inner cone tube (2) are sleeved with each other, and a mold plate (11) is installed at the lower end of the outer cone tube (1), and a plurality of groups of mold holes (12) are arranged on the mold plate (11), and an overflow annular groove (18) communicating with the mold holes (12) is arranged between the outer cone tube (1) and the inner cone tube (2), characterized in that: An inner mold frame (17) is provided at the lower end of the inner cavity of the inner cone tube (2), and a plurality of groups of grinding balls (15) are provided in the inner mold frame (17) for rotation and stirring by means of stirring blades (31). A feed pipe (8) of an externally connected screw extruder is provided on the inner cone tube (2), and the feed pipe (8) feeds into the inner cavity at the lower end of the inner mold frame (17). Micropores (39) connected to the feed pipe (8) and overflow holes (34) connected to the overflow ring groove (18) are provided at the upper and lower ends of the inner mold frame (17), respectively, and the inner diameters of the micropores (39) and the overflow holes (34) are both smaller than the outer diameters of the grinding balls (15).

2. The reaction device for preparing raw fiber of chemical fiber fabric according to claim 1, characterized in that: The lower end of the outer cone tube (1) is provided with a mounting annular groove (13), the upper end outer edge of the mold plate (11) is threadedly mounted in the mounting annular groove (13), and the inner diameter of the port at one end of the mold hole (12) connected to the overflow annular groove (18) is larger than the inner diameter of the port at the other end.

3. The reaction device for preparing raw fiber of chemical fiber fabric according to claim 1, characterized in that: The inner cavity at the upper end of the inner cone tube (2) is configured as an overflow inner cavity (6), and the inner cavity at the lower end of the inner cone tube (2) is configured as a mounting groove (29). The upper end of the mounting groove (29) is provided with a stepped annular groove (28). The inner mold frame (17) is disposed in the mounting groove (29). The upper end of the inner mold frame (17) is pressed and fixed on the stepped annular groove (28). A gap is left between the lower end of the inner mold frame (17) and the inner wall of the lower end of the mounting groove (29). The gap is configured as a feed inner cavity (4). The feed pipe (8) is connected to the feed inner cavity (4) via an extension pipe (10).

4. The reaction device for preparing raw fiber of chemical fiber fabric according to claim 3, characterized in that: The outer edge of the upper end of the inner cone tube (2) is provided with a plurality of groups of positioning screw hole tubes (27) distributed in a circumferential array, and the plurality of groups of positioning screw hole tubes (27) are connected via a double-layer ring net (5). The upper end of the inner cone tube (2) is provided with a sealing cover (3), and the sealing cover (3) is provided with mounting holes (33) corresponding to the positioning screw hole tubes (27) one by one. Fixing bolts (30) are inserted into the mounting holes (33), and the lower ends of the fixing bolts (30) are threadedly connected to the positioning screw hole tubes (27). The overflow inner cavity (6) is laterally connected to the overflow annular groove (18) via the double-layer ring net (5).

5. The reaction device for preparing raw fiber of chemical fiber fabric according to claim 4, characterized in that: A plurality of side grooves (7) distributed in a circumferential array are arranged on the arc inner wall of the upper end of the outer conical tube (1), the side grooves (7) vertically extending to the upper end of the sealing cover (3), a plurality of columns (26) corresponding to the side grooves (7) are arranged on the upper end of the sealing cover (3), a slider (19) sliding along the side grooves (7) is vertically arranged on the column (26), the slider (19) is provided with an inner hole, a screw hole (20) penetrating the outer wall of the upper end of the outer conical tube (1) is arranged on the inner wall of the side groove (7), and the slider (19) is fixed by a locking bolt (21) screwed and inserted along the thread of the screw hole (20).

6. The reaction device for preparing raw fiber of chemical fiber fabric according to claim 5, characterized in that: A detachably mounted bottom plate (36) is disposed in the middle of the lower end of the inner mold frame (17); a through hole (38) is disposed in the middle of the bottom plate (36) and is sleeved with the extension tube (10); the inner cavity of the inner mold frame (17) is configured as a grinding cavity (14); a plurality of groups of grinding balls (15) are placed in the grinding cavity (14); a plurality of groups of micropores (39) are disposed on the bottom plate (36); and the micropores (39) are connected to the feed cavity (4) and the grinding cavity (14).

7. The reaction device for preparing raw fiber of chemical fiber fabric according to claim 6, characterized in that: The upper end of the inner mold frame (17) is provided with a plurality of overflow holes (34) staggered with the micropores (39), the plurality of overflow holes (34) communicating with the grinding inner cavity (14) and the overflow inner cavity (6), a rotating tube (9) driven by a driving assembly is provided in the middle of the inner mold frame (17), the lower end of the rotating tube (9) extending into the grinding inner cavity (14), and a rotating groove (37) is provided at the upper end of the grinding inner cavity (14), a stirring blade (31) is fixedly sleeved at the lower end of the rotating tube (9), the upper end of the stirring blade (31) rotates along the rotating groove (37), and the stirring blades of the stirring blade (31) extend into the gaps between the plurality of grinding balls (15).

8. The reaction device for preparing raw fiber of chemical fiber fabric according to claim 7, characterized in that: The driving assembly comprises a driving gear (23), a driven gear (22) and a motor (25); an upper end plate of the rotating tube (9) is pressed onto the sealing cover (3), and the outer wall of the end plate is fixedly sleeved with the driven gear (22); a driving gear (23) driven by the motor (25) is arranged at the upper end of the sealing cover (3), and the driving gear (23) and the driven gear (22) are meshingly connected; a limiting end plate (32) is arranged at the upper end of the extension tube (10), the limiting end plate (32) is fixedly connected to the end of the feed tube (8), and a wing ring extending downward and fitting on the upper end surface of the driven gear (22) is arranged at the outer edge of the limiting end plate (32).

9. The reaction device for preparing raw fiber of chemical fiber fabric according to claim 8, characterized in that: The extension tube (10) is inserted through the rotating tube (9), and the rotating tube (9) and the extension tube (10) are rotatably connected via a bearing (24). A sealing gasket (16) is fixedly mounted at the lower end of the feed inner cavity (4), and a plurality of groups of annular sealing grooves are arranged at the upper end of the sealing gasket (16). A sealing ring (35) cooperating with the sealing groove is arranged at the lower end of the inner mold frame (17).

10. A process implemented by the reaction device for preparing raw fiber of chemical fiber fabric according to any one of claims 1 to 9, characterized in that: The process comprises the following steps: Step 1: The raw materials for preparing chemical fiber fabrics are washed and dehydrated, and then placed in a screw extruder, and then heated and melted and extruded by the screw extruder; Step 2: The molten raw material after extrusion enters the inner mold frame (17) along the feed pipe (8), is further ground and broken up by the grinding balls (15) in the inner mold frame (17), and then moves upward under the action of centrifugal force, falls along the overflow ring groove (18) onto the mold plate (11), and finally flows out along the mold hole (12) to form chemical fiber filaments.

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