CN115434019B

CN115434019B - Spinning system for collagen fibers

Info

Publication number: CN115434019B
Application number: CN202211296088.7A
Authority: CN
Inventors: 董贺翔; 李双洋; 周建飞; 罗恒祎
Original assignee: Xinji Baolong Wool Textile Co ltd; Xinji Meihua Leather Industry Co ltd
Current assignee: Xinji Baolong Technology Co ltd; Xinji Meihua Leather Industry Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-11-10
Anticipated expiration: 2042-10-21
Also published as: CN115434019A

Abstract

The application relates to the technical field of collagen fiber processing, and particularly discloses a spinning system for collagen fibers, which comprises a spinning solution reaction kettle, a defoaming kettle, a spinning device, an inorganic salt cooling and solidifying device, a functional modification drafting device, an organic salt solidifying and drafting device, a winding drying device and a winding drafting device; the inorganic salt cooling and solidifying device comprises a cooling tank body and a traction roller, wherein a first cooling cavity is formed in the side wall of the cooling tank body, and the traction speed of the traction roller is the same as the spinning speed of the spinning cap. According to the spinning system, the fiber primary finished product is gradually stretched in a stepped mode, the condition that the fiber primary finished product is broken is reduced, and the spinning stability of the collagen fiber is improved. And the production process is simplified, the toughness, strength and chemical properties of the collagen fiber are increased, and the collagen fiber has good comprehensive properties.

Description

Spinning system for collagen fibers

Technical Field

The application relates to the technical field of collagen fiber processing, in particular to a spinning system for collagen fibers.

Background

With the development of economy and the progress of technology, higher requirements are imposed on textiles. Collagen fibers in animal skins have the advantages of good moisture absorption and retention and good skin affinity, so that the application of the collagen fibers extracted from animal skins, particularly sheep skins, in textile processing has been widely focused and studied. The spinning of the collagen fiber is not separated from a spinning system, wherein the wet spinning system generally comprises a mixing device, a spinning device, a water bath solidification and drafting device, a primary drying device, a functional modification device, a secondary drying device and a winding device. Firstly, dehaired animal skin is treated by acid/alkali and other methods to obtain protein liquid, further, an auxiliary agent is added into the protein liquid to obtain spinning solution, and then the spinning solution is subjected to spinning, water bath solidification and stretching, primary drying, functional modification, secondary drying and coiling to obtain collagen fibers. In actual production, the applicant finds that the collagen in animal skin is easy to break in the spinning process, so that the spinning stability is affected.

Disclosure of Invention

In order to improve the stability of collagen fiber spinning, the application provides a spinning system for collagen fibers, which adopts the following technical scheme:

the spinning system for the collagen fibers comprises a spinning solution reaction kettle, wherein a defoaming kettle, a spinning device, an inorganic salt cooling and solidifying device, a functional modification drafting device, an organic salt solidifying and drafting device, a winding and drying device and a winding and drawing device are sequentially arranged at the downstream of the spinning solution reaction kettle;

the spinning device comprises a spinning gooseneck communicated with the defoaming kettle, a liquid pumping booster pump for increasing the spinning liquid pressure, and a spinning cap arranged on the spinning gooseneck, wherein a plurality of discharging holes are uniformly formed in the spinning cap;

the inorganic salt cooling solidification device comprises a cooling tank body with an open top, the spinning nozzle is positioned in the cooling tank body, a traction roller is arranged at one end far away from the spinning nozzle in the cooling tank body, the traction speed of the traction roller is the same as the spinning speed of the spinning nozzle, a first cooling cavity is formed in the side wall of the cooling tank body, and a first water inlet pipe and a first water outlet pipe which are communicated with the first cooling cavity are arranged on the first cooling tank body.

The spinning system is used for preparing raw materials, mixing the raw materials, defoaming, spinning, solidifying an inorganic salt solution, stretching by functional modification, solidifying and stretching by organic salt, drying and coiling to obtain the collagen fiber. The raw materials of the collagen fiber are animal skin protein liquid, PVA solution and cross-linking agent. The collagen in the animal skin protein liquid has rigid chain, more side chains, hydrophilic area and hydrophobic area. PVA in the PVA solution has flexible chains and uniform structure, and animal skin protein liquid and the PVA solution are mixed and modified under the action of a cross-linking agent to form collagen fibers, so that the coagulability, toughness, strength and heat-resistant stability of the collagen fibers can be effectively improved.

Meanwhile, in the inorganic salt cooling and solidifying device, the traction speed of the traction roller is the same as the spinning speed of the spinning cap, the fiber primary finished product is not stretched, the spinning solution is formed preliminarily, and the situation that the fiber primary finished product is broken is reduced. And the fiber primary product is stretched in the functional modification drafting device, so that the length is increased, and the fineness is reduced. And stretching the fiber primary product in the organic salt curing drafting device, increasing the length and reducing the fineness. The fiber primary finished product is gradually stretched in a stepped mode, the condition that the fiber primary finished product is broken is reduced, and the spinning stability of the collagen fiber is improved. According to the spinning system, through the mutual coordination among the inorganic salt cooling solidification device, the functional modification drafting device and the organic salt solidification drafting device, the situation of fracture in the collagen fiber spinning process is reduced, and the collagen fiber spinning stability is improved.

The spinning solution is solidified by inorganic salt solution through an inorganic salt cooling and solidifying device, then is functionally modified and stretched through a functional modification drawing device, and then is solidified and stretched by organic salt through an organic salt solidifying and drawing device. The applicant finds that the fiber primary product formed by spinning the spinning solution through the spinning cap has slightly poor toughness and strength, and also has certain water solubility, so that the stability of collagen fiber spinning is affected. At this time, an inorganic salt solution is placed in an inorganic salt cooling and solidifying device, and the inorganic salt solution is cooled and solidified to reduce dissolution. And, put functional modification solution, for example waterproof modification solution in functional modification draft device, make the fibrous primary product waterproof through waterproof modification solution, put organic salt solution in organic salt solidification draft device, further solidify the fibrous primary product through organic salt solution, increase the performance of collagen fiber.

Inorganic salt solution is added into the inorganic salt cooling solidification device, functional modification solution is added into the functional modification drafting device, and organic salt solution is added into the organic salt solidification drafting device, so that the inorganic salt solution, the organic salt solution and the functional modification solution solidify and modify the fiber primary finished product, the toughness, the strength and the chemical properties of the collagen fiber are improved, and the collagen fiber has good comprehensive properties.

Meanwhile, based on the functional modification of the functional modification drafting device, the functional modification solution is added to modify the fiber primary finished product, namely the modification of the collagen fiber can be completed in the solidification and stretching stage, the comprehensive performance requirement of the fiber can be met without the need of water bath solidification and the subsequent setting of the functional modification device in the drafting device, the functional modification operation after primary drying and primary drying is omitted, and the production flow is simplified.

Optionally, at least one dispersing component is arranged between the spinning nozzle and the traction roller in the cooling tank body, the dispersing component comprises a dispersing plate detachably arranged on the cooling tank body, a plurality of material passing dispersing holes which are in one-to-one correspondence with the discharging holes of the spinning nozzle are arranged on the dispersing plate, the connecting lines of the material passing dispersing holes and the discharging holes are arranged along the conveying direction, and/or,

the cooling tank body is internally provided with an aggregation assembly between the dispersing assembly and the traction roller, the aggregation assembly comprises an aggregation plate which is detachably arranged on the cooling tank body, and an aggregation hole is formed in the aggregation plate.

An inorganic salt solution is placed in the cooling tank body. The spinning solution is sprayed out through the spinning cap to form a fiber primary product, the number of the fiber primary products is multiple, and the multiple fiber primary products are gradually gathered together in an umbrella-shaped form and then are further conveyed. In the application, the dispersing plate is arranged between the spinning cap and the traction roller, and the plurality of fiber primary products are gathered after passing through the dispersing plate, so that the plurality of fibers are in a dispersed state between the spinning cap and the dispersing plate, and the dispersing plate and the traction roller are gradually gathered, thereby effectively increasing the contact between the plurality of fiber primary products and the inorganic salt solution and improving the cooling and solidifying effects. Meanwhile, as a plurality of fiber primary finished products are not aggregated, the fiber primary finished products are thinner, and are inconvenient to judge whether to break in inorganic salt solution, especially when the fiber primary finished products break a certain strip, the fiber primary finished products are invisible to naked eyes. At this time, if a certain fiber primary product breaks, the broken fiber primary product cannot smoothly pass through the dispersion plate due to the arrangement of the dispersion plate, and is gathered between the dispersion plate and the spinning cap, so that whether the fiber primary product breaks or not can be judged.

The raw fiber products pass through the dispersing plate and the gathering plate and then bypass the traction roller, and the gathering plate is provided with a gathering hole, so that the raw fiber products can be gathered, the situation that the raw fiber products are dispersed on the traction roller is reduced, and the spinning stability of the collagen fiber is improved.

Optionally, the cooling tank body is provided with a cooling cover plate at the opening, and/or,

the cooling tank body is provided with a liquid level pipe communicated with the cooling tank body, the liquid level pipe is provided with scales and/or,

the cooling tank body is provided with a first circulating pipe communicated with the cooling tank body, and the first circulating pipe is provided with a first circulating pump and a valve.

Through adopting above-mentioned technical scheme, set up the cooling apron on the cooling cell body, reduce the circumstances that drops debris in the cooling cell body. And through the mutual cooperation between the first circulating pipe and the first circulating pump, the disturbance of the inorganic salt solution in the cooling tank body is increased, and the cooling solidification effect of the spinning solution is improved. The liquid level pipe is arranged on the cooling tank body, so that the liquid level in the cooling tank body can be detected. And when a plurality of fiber primary products break in the cooling tank body, the liquid level height can be increased, and by observing the liquid level pipe, when the liquid level of the liquid level pipe rises, whether the fiber primary products break can be judged.

Optionally, the function modification draft device includes the draft cell body of open-ended, in the draft cell body and be provided with the transfer roller in the one end that is close to the cooling cell body, the other end is provided with the draft roller, the draft speed of draft roller is greater than the draft speed of draft roller, the second cooling cavity has been seted up to draft cell body lateral wall, be provided with on the draft cell body with second cooling cavity be linked together inlet tube, second outlet pipe.

By adopting the technical scheme, the fiber primary product bypasses the conveying roller, and because the drafting speed of the drafting roller is greater than the drafting speed of the traction roller, the fiber primary product is stretched at the moment, the length is increased, and the fineness is reduced. And the functional modifying solution is placed in the drawing tank body, so that the fiber primary finished product is modified, and the performance of the collagen fiber is improved.

Optionally, at least one extrusion component is arranged between the conveying roller and the drafting roller in the drafting groove body, the extrusion component comprises a lower compression roller arranged in the drafting groove body and an upper compression roller arranged in the drafting groove body, the upper compression roller is positioned above the lower compression roller, and an extrusion gap is formed between the upper compression roller and the lower compression roller.

Through adopting above-mentioned technical scheme, the fibre primary product walks around lower compression roller, through extrusion clearance, walks around last compression roller, and the solution in the fibre primary product is extruded this moment, then gets into in the functional modification solution again, and the fibre primary product absorbs the functional modification solution, effectively increases the processing of functional modification solution to the fibre primary product, improves collagen fiber's performance.

Optionally, a draft cover plate is arranged at the opening of the draft trough body, and/or,

the drafting groove body is provided with a second circulating pipe communicated with the drafting groove body, and the second circulating pipe is provided with a second circulating pump and a valve.

By adopting the technical scheme, the drafting cover plate is arranged on the drafting groove body, so that the situation that sundries fall in the drafting groove body is reduced. And through the mutual coordination between the second circulating pipe and the second circulating pump, the disturbance of the functional modification solution in the drawing tank body is increased, and the spinning effect of the collagen fiber is improved.

Optionally, at least two reversing rollers are arranged between the conveying roller and the drafting roller in the drafting groove body along the length direction of the drafting groove body, a plurality of hollow balls are arranged on the reversing rollers along the length direction and the circumference direction of the reversing rollers, communication holes communicated with the inside of the balls are formed in the balls, mounting holes are formed in the reversing rollers, and the balls roll in the mounting holes.

By adopting the technical scheme, the fiber primary product bypasses the reversing roller, so that the contact time of the fiber primary product and the functional modification solution is increased. And because the ball is arranged on the reversing roller, the ball rolls in the mounting hole, and when the ball rolls, the contact surface between the fiber primary finished product and the ball can be changed, and the contact between the fiber primary finished product and the reversing roller at the same position is reduced. Meanwhile, as the ball is hollow and is provided with the communication hole, the functional modification solution enters the ball and continuously flows out along with rolling, the contact between the fiber primary finished product and the functional modification solution is increased, and meanwhile, the reversing roller can also disturb the functional modification solution, so that the treatment of the functional modification solution on the fiber primary finished product is improved, and the performance of the collagen fiber is also improved.

Optionally, the structure of the organic salt curing drafting device is the same as the structure of the functional modification drafting device, and the drafting speed of the drafting roller in the organic salt curing drafting device is greater than that in the functional modification drafting device.

By adopting the technical scheme, the processing and the use of the organic salt curing drafting device are facilitated.

Optionally, the spinning solution reation kettle includes the reation kettle body, sets up inlet pipe on the reation kettle body, sets up first discharging pipe on the reation kettle body, rotates the (mixing) shaft of connecting in the reation kettle, is used for making (mixing) shaft pivoted (mixing) motor, sets up the puddler on the (mixing) shaft, first protection Wen Kongqiang has been seted up to the reation kettle body lateral wall, be provided with first heat preservation inlet tube, the first heat preservation outlet pipe that is linked together with first protection Wen Kongqiang on the reation kettle body, be provided with first intake pipe, the first blast pipe that is linked together rather than inside on the reation kettle body, all be provided with the valve on inlet pipe, first discharging pipe, first intake pipe, the first blast pipe.

By adopting the technical scheme, the raw materials of the collagen fibers are mixed and reacted in the reaction kettle body. Through mutually supporting of (mixing) shaft, puddler, agitator motor, stir the raw materials, increase the homogeneity of raw materials compounding. Through the mutual cooperation of first heat preservation inlet tube, first heat preservation outlet pipe, first heat preservation cavity, realize the heat preservation to the reation kettle body. Through the mutual cooperation between the first air inlet pipe and the first exhaust pipe, the reaction kettle body can be pressurized or inert gas protection can be formed. Meanwhile, when the spinning solution is discharged, the internal pressure of the reaction kettle is increased by introducing gas into the reaction kettle, so that the discharge of the spinning solution is facilitated.

Optionally, a filter is communicated between the spinning solution reaction kettle and the defoaming kettle, and a filter is also arranged between the defoaming kettle and the spinning device.

By adopting the technical scheme, the spinning solution is filtered for a plurality of times, the condition that the spinning solution blocks the spinning cap is reduced, the use stability of a spinning system is improved, and the spinning stability of the collagen fiber is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the spinning system for the collagen fibers, a spinning solution is subjected to a spinning cap to form a primary finished product. The fiber primary finished product is not stretched through the inorganic salt cooling and solidifying device, so that the fracture condition of the fiber primary finished product is reduced. And (3) stretching the fiber primary product through a functional modification drafting device. And (3) stretching the fiber primary product through an organic salt curing and drafting device. The fiber primary finished product is gradually stretched in a stepped mode, the condition that the fiber primary finished product is broken is reduced, and the spinning stability of the collagen fiber is improved.

2. The inorganic salt solution is added into the inorganic salt cooling and solidifying device, the organic salt solution is added into the organic salt solidifying and stretching device, and the inorganic salt solution, the organic salt solution and the functional modification solution are utilized to solidify and modify the fiber primary finished product, so that the toughness, the strength and the chemical property of the collagen fiber are improved, and the collagen fiber has good comprehensive performance. Meanwhile, based on the functional modification solution added into the functional modification drafting device, the modification of the collagen fiber can be completed in the solidification and stretching stage, the comprehensive performance requirement of the fiber can be met without arranging a functional modification device after primary drying, the drying operation is reduced to one step, the primary drying and the functional modification operation after primary drying are omitted, and the production flow is simplified.

3. And a dispersing plate is arranged between the spinning cap and the traction roller, so that the contact between a plurality of fiber primary finished products and the inorganic salt solution is increased, and the use effect of the inorganic salt cooling and solidifying device is improved. And the aggregation plate is arranged between the dispersion plate and the traction roller, so that the dispersion of a plurality of fiber primary finished products on the traction roller is reduced, and the spinning stability of the collagen fibers is improved.

4. And an extrusion component is arranged between the conveying roller and the drawing roller to extrude the solution in the fiber primary product, and then the solution enters the functional modification solution again, so that the functional modification solution is absorbed by the fiber primary product, the treatment of the functional modification solution on the fiber primary product is effectively increased, and the performance of the collagen fiber is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the spinning system of example 1.

FIG. 2 is a schematic diagram showing a part of the structure of a spinning solution reaction vessel and a defoaming vessel.

Fig. 3 is a partial sectional view showing the internal structure of the spinning device and the cooling tank.

Fig. 4 is a schematic view showing a part of the structure of the inorganic salt cooling and solidifying apparatus.

Fig. 5 is a schematic view showing a partial structure of the functional modification draft device and the organic salt curing draft device.

Fig. 6 is a partial sectional view for showing the internal structure of the draft tank.

Fig. 7 is a schematic view showing a part of the structure of the winding and drying device and the winding and pulling device.

Fig. 8 is a partial sectional view for showing the pressing assembly in example 2.

Fig. 9 is a partial sectional view of the reversing roller in example 3.

Fig. 10 is a partial cross-sectional view showing the mounting hole and the communication hole.

Reference numerals illustrate: 1. a spinning solution reaction kettle; 11. a reaction kettle body; 12. a feed pipe; 13. a first discharge pipe; 14. a stirring shaft; 141. a stirring motor; 15. a first heat-preserving water inlet pipe; 16. a first heat-preserving water outlet pipe; 17. a first air inlet pipe; 18. a first exhaust pipe; 2. a defoaming kettle; 21. a defoaming kettle body; 22. a second discharge pipe; 23. a second air inlet pipe; 24. a second exhaust pipe; 25. a vacuum pump; 26. a second heat-preserving water inlet pipe; 3. a spinning device; 31. a spun goose neck; 32. a liquid pumping booster pump; 33. a spinning cap; 4. an inorganic salt cooling and solidifying device; 41. a cooling tank; 411. cooling the support legs; 412. cooling the cover plate; 413. a liquid level pipe; 42. a first water inlet pipe; 43. a first water outlet pipe; 44. a first bracket; 45. a traction roller; 46. a first guide roller; 47. a first circulation pipe; 471. a first circulation pump; 48. a dispersion assembly; 481. a dispersion plate; 482. passing material dispersing holes; 483. a first fixing plate; 484. a first communication hole; 49. an aggregation component; 491. a collecting plate; 492. aggregation holes; 493. a second fixing plate; 494. a second communication hole; 5. a functional modification drafting device; 51. drawing the groove body; 511. drafting the supporting leg; 512. drawing the cover plate; 52. a second water inlet pipe; 53. a second water outlet pipe; 54. a conveying roller; 55. a second bracket; 551. a draft roller; 552. a second guide roller; 56. a second circulation pipe; 561. a second circulation pump; 57. an extrusion assembly; 571. a third bracket; 572. a lower press roll; 573. an upper press roll; 58. a reversing assembly; 581. an upper guide roller; 582. an upper reversing roller; 583. a lower guide roller; 584. a lower reversing roller; 585. a middle guide roller; 6. an organic salt solidifying and drafting device; 7. a winding drying device; 71. a drying chamber; 72. an upper winding roller; 73. a lower winding roller; 8. a winding traction device; 81. a winding frame; 82. a guide wheel; 83. a wind-up traction roller; 91. a valve; 92. and (3) a filter.

Detailed Description

The application is described in further detail below with reference to fig. 1-9.

Example 1

A spinning system for collagen fibers is used for spinning collagen fibers and comprises the steps of preparing raw materials, mixing raw materials, defoaming, spinning, solidifying an inorganic salt solution, functionally modifying and stretching, solidifying and stretching organic salt, drying and coiling to obtain the collagen fibers. The collagen fiber is prepared from the raw materials of the sheep skin protein liquid, PVA solution and cross-linking agent, and the raw materials are mixed at the temperature of 80 ℃. The cross-linking agent is glyoxal. In addition to sheepskin, cowhide, pigskin, etc. may be used for spinning after extracting protein liquid.

Referring to fig. 1, the spinning system includes a spinning solution reaction kettle 1, and the spinning solution reaction kettle 1 is used for carrying out a mixing reaction on raw materials of collagen fibers. The downstream of spinning solution reaction kettle 1 is provided with deaeration cauldron 2, and the downstream of deaeration cauldron 2 has set gradually spouts silk device 3, inorganic salt cooling solidification device 4, and the downstream of inorganic salt cooling solidification device 4 is provided with function modification draft gear 5, and the downstream of function modification draft gear 5 is provided with organic salt solidification draft gear 6, and the downstream of organic salt solidification draft gear 6 is provided with wire winding drying device 7, and the downstream of wire winding drying device 7 is provided with rolling draw gear 8.

And mixing and reacting the sheepskin protein liquid, the PVA solution and the cross-linking agent in the spinning solution reaction kettle 1 to form spinning solution. The spinning solution can effectively remove internal bubbles after passing through the deaeration kettle 2, and the uneven condition of the surface of the collagen fiber is reduced. And then the fiber is subjected to a spinning device 3 and an inorganic salt cooling and solidifying device 4 to form a fiber primary product. The solution adopted in the inorganic salt cooling and solidifying device 4 is inorganic salt solution, the inorganic salt solution is sodium sulfate solution, the inorganic salt solution can reduce the dissolution of the sheep skin protein in the collagen fiber raw material, and the situation that the fiber primary finished product is broken is reduced only by preliminary shaping without stretching. After that, through the functional modification drawing device 5, the solution used in the functional modification drawing device 5 is a functional modification solution, for example, a waterproof modification solution, and the waterproof modification solution is a polyacrylate solution, so that not only is the stretching realized, the length is increased, the fineness is reduced, but also the waterproof performance of the collagen fiber is increased. Then the organic salt is solidified and drafted by the organic salt solidifying and drafted device 6, the solution used by the organic salt solidifying and drafted device 6 is organic salt solution, and the organic salt solution is ethylenediamine tetraacetic acid sodium solution, so that the stretching is realized, the length is increased, the fineness is reduced, and the strength and the toughness of the collagen fiber are further increased. Meanwhile, the fiber primary finished product is stretched in a stepped mode, so that the broken line of the fiber primary finished product in the stretching process can be reduced. And then removing internal moisture through a winding and drying device 7, and coiling through a coiling and traction device 8 to obtain collagen fibers, so that the collagen fibers can be stored conveniently.

Referring to fig. 2, the spinning solution reaction kettle 1 includes a reaction kettle body 11, the reaction kettle body 11 is mounted on a bracket (the bracket is not shown in the figure), a feed pipe 12 communicated with the inside of the reaction kettle body 11 is fixedly arranged at the top of the reaction kettle body 11, a first discharge pipe 13 communicated with the inside of the reaction kettle body 11 is fixedly arranged at the bottom of the reaction kettle body, a valve 91 is arranged on the feed pipe 12, and a valve 91 and a filter 92 are arranged on the first discharge pipe 13. The top wall of the reaction kettle body 11 is rotatably connected with a stirring shaft 14, and stirring rods (stirring rods are not shown in the figure) are uniformly fixed on the stirring shaft 14. A stirring motor 141 is arranged above the reaction kettle body 11, and the top end of the stirring shaft 14 penetrates through the reaction kettle body 11 and is fixedly connected with an output shaft of the stirring motor 141. The side wall of the reaction kettle body 11 is provided with a circle of first heat preservation Wen Kongqiang which is matched with the reaction kettle body, the bottom of the side wall of the reaction kettle body 11 is fixedly provided with a first heat preservation water inlet pipe 15 which is communicated with the first heat preservation Wen Kongqiang, and the top of the side wall of the reaction kettle body 11 is fixedly provided with a first heat preservation water outlet pipe 16 which is communicated with the first heat preservation Wen Kongqiang.

Referring to fig. 2, in order to facilitate the discharge of the spinning solution, the top of the reaction kettle 11 is fixedly provided with a first air inlet pipe 17 and a first air outlet pipe 18 which are communicated with the inside of the reaction kettle, and valves 91 are respectively arranged on the first air inlet pipe 17 and the first air outlet pipe 18. By introducing gas into the reaction kettle body 11, the internal pressure of the reaction kettle body 11 is increased, and the discharge of spinning solution is facilitated.

Referring to fig. 2, the deaeration tank 2 includes a deaeration tank body 21, the deaeration tank body 21 is mounted on a bracket (the bracket is not shown in the drawing), and the top of the deaeration tank body 21 and the bottom of the reaction tank body 11 are communicated through a first discharge pipe 13. The bottom of the deaeration kettle body 21 is fixedly provided with a second discharging pipe 22 communicated with the inside of the deaeration kettle body, and the second discharging pipe 22 is also provided with a valve 91 and a filter 92. The top of the deaeration kettle body 21 is fixedly provided with a second air inlet pipe 23 and a second air outlet pipe 24 which are communicated with the inside of the deaeration kettle body, and valves 91 are also arranged on the second air inlet pipe 23 and the second air outlet pipe 24. One side of the deaeration kettle body 21 is provided with a vacuum pump 25, and one end of the second exhaust pipe 24, which is far away from the deaeration kettle body 21, is communicated with the vacuum pump 25. By discharging the gas in the deaeration tank body 21, the pressure in the deaeration tank body 21 is reduced, so that the bubbles in the spinning solution can be removed easily. The side wall of the defoaming kettle body 21 is provided with a circle of second heat-preserving cavity which is matched with the side wall of the defoaming kettle body, the second heat-preserving cavity is communicated with the first heat-preserving water inlet pipe 15, and one end, far away from the first heat-preserving water inlet pipe 15, of the first heat-preserving water inlet pipe 15 is fixedly arranged at the top of the side wall of the defoaming kettle body 21. A second heat preservation water inlet pipe 26 communicated with the second heat preservation cavity is fixedly arranged at the bottom of the side wall of the deaeration kettle body 21.

The heat preservation water passes through the second heat preservation water inlet pipe 26, the second heat preservation cavity and the first heat preservation water inlet pipe 15, so that the heat preservation of the deaeration kettle body 21 is realized. The heat preservation water passes through the first heat preservation water inlet pipe 15, the first heat preservation Wen Kongqiang and the first heat preservation water outlet pipe 16 to realize heat preservation of the reaction kettle body 11. Compared with the independent heat preservation of the defoaming kettle body 21 and the reaction kettle body 11, the heat preservation is realized through the first heat preservation water inlet pipe 15 in the embodiment, so that equipment investment is reduced, and the operation is convenient.

Referring to fig. 2 and 3, the spinning device 3 comprises a spinning gooseneck 31, and the feeding end of the spinning gooseneck 31 is communicated with the deaeration kettle 2 through a second discharging pipe 22. The second discharge pipe 22 is provided with an extraction booster pump 32. The discharge end of the spinning gooseneck 31 is provided with a spinning cap 33, and a plurality of discharge holes are uniformly formed in the spinning cap 33. The spinning solution enters the spinning gooseneck 31 through the second discharge pipe 22, and is sprayed out and formed into filaments through the spinning cap 33 under the liquid-pumping booster pump 32.

Referring to fig. 3 and 4, the inorganic salt cooling and solidifying device 4 includes a cooling tank 41, and the cooling tank 41 has a rectangular parallelepiped shape with an open top end. One end of the cooling tank 41 near the spinning cap 33 is a feed end, and the other end is a discharge end. The spin-coating cap 33 is positioned within the cooling tank 41. The bottom wall of the cooling tank 41 is uniformly fixed with cooling legs 411. The side wall of the cooling tank body 41 is provided with a circle of first cooling cavity matched with the cooling tank body, the bottom of the cooling tank body 41 is fixedly provided with a first water inlet pipe 42 communicated with the first cooling cavity, and the top of the cooling tank body 41 is fixedly provided with a first water outlet pipe 43 communicated with the first cooling cavity.

Referring to fig. 3 and 4, a first bracket 44 is provided at one end of the cooling tank 41 far away from the spinning cap 33, a pull roller 45 is rotatably connected to the first bracket 44, the pull roller 45 is driven to rotate by a motor, and the pull roller 45 is located in the cooling tank 41. The drawing speed of the drawing roll 45 is the same as the spinning speed of the spinning cap 33. The first bracket 44 is rotatably connected with a first guide roller 46, the first guide roller 46 is driven to rotate by a motor, and the first guide roller 46 is positioned above the traction roller 45. The cooling cover plate 412 is provided on the top of the cooling tank 41, and the cooling cover plate 412 is a transparent plate. The cooling cover 412 has relief holes near the pulling roll 45. The side wall of the cooling tank body 41 is fixedly provided with a liquid level pipe 413 communicated with the inside of the cooling tank body, and scales are arranged on the liquid level pipe 413. The cooling tank 41 is fixedly provided with a first circulation pipe 47 communicated with the cooling tank, the first circulation pipe 47 is provided with a first circulation pump 471, and the first circulation pipe 47 is also provided with a valve 91. The cooling tank 41 is provided with two dispersing units 48 along its length, and the two dispersing units 48 are located between the spinning cap 33 and the pulling roll 45. The cooling tank 41 is provided with a collecting unit 49 between the dispersing unit 48 and the pulling roll 45.

Referring to fig. 3 and 4, the dispersing assembly 48 includes a dispersing plate 481 disposed in the cooling tank 41, and a plurality of material passing dispersing holes 482 (for convenience of presentation, the diameter of the material passing dispersing holes 482 in the drawing is larger than the actual diameter, which is set according to the specification of the collagen fiber product) are provided on the dispersing plate 481 in one-to-one correspondence with the discharge holes of the spinning caps 33, and the diameters of the material passing dispersing holes 482 are the same as the diameters of the discharge holes, and the connection lines of the material passing dispersing holes 482 and the discharge holes are set along the conveying direction. The first fixing plate 483 is fixed to the dispersion plate 481, and the first fixing plate 483 is fixed to the cooling tank 41 by bolts. The dispersion plate 481 is further provided with first communication holes 484 for allowing a solution to flow therethrough. The collection assembly 49 includes a collection plate 491 disposed within the cooling gallery 41, with a collection aperture 492 defined in the collection plate 491. The second fixing plate 493 is fixed to the collecting plate 491, and the second fixing plate 493 is fixed to the cooling tank 41 by bolts. The collecting plate 491 is further provided with a second communication hole 485 through which the solution flows.

When the spinning system is in primary operation, the dispersion plate 481 is made to collide with the spinning nozzle 33, so that the spinning solution passes through the discharge hole of the spinning nozzle 33 and the material passing dispersion holes 482 of the dispersion plate 481 to form a fiber primary finished product. The dispersion plate 481 is then moved to a predetermined position and fixed to the cooling tank 41 by bolts. That is, when the spinning system is initially operated, the dispersion plate 481 is abutted against the spinning caps 33, so that a plurality of fiber preliminary products pass through the material passing dispersion holes 482, and when the operation is stable, the dispersion plate 481 is separated from the spinning caps 33.

The cold water passes through the first water inlet pipe 42, the first cooling cavity and the first water outlet pipe 43 to cool the cooling tank 41. The cooling tank 41 stores an inorganic salt solution therein. The spinning solution passes through the spinning cap 33, the dispersion plate 482, the collecting plate 492, the pull roll 45, and the first guide roll 46 in this order, and then exits the cooling tank 41. Since the drawing speed of the drawing roller 45 is the same as the spinning speed of the spinning cap 33, the fiber preform is not drawn.

Referring to fig. 5 and 6, the functionally modifying draft device 5 includes a draft tank 51, and the draft tank 51 has a rectangular parallelepiped shape with an open top end. One end of the draft tank 51 close to the cooling tank 41 is a feed end, and the other end is a discharge end. The bottom wall of the draft trough 51 is uniformly fixed with draft legs 511. A circle of second cooling cavity matched with the drawing groove body 51 is formed in the side wall of the drawing groove body 51, a second water inlet pipe 52 communicated with the second cooling cavity is fixedly arranged at the bottom of the drawing groove body 51, and a drawing second water outlet pipe 53 communicated with the second cooling cavity is fixedly arranged at the top of the drawing groove body 51.

Referring to fig. 5 and 6, a transfer roller 54 is rotatably connected to the first bracket 44, the transfer roller 54 is rotated by a motor, and the transfer roller 54 is positioned in the draft tank 51. The end of the draft tank body 51 far away from the cooling tank body 41 is provided with a second bracket 55, a draft roller 551 is rotationally connected to the second bracket 55, the draft roller 551 is driven to rotate by a motor, and the draft roller 551 is positioned in the draft tank body 51. The draft speed of the draft roller 551 is greater than the draft speed of the draft roller 45. The second support 55 is rotatably connected with a second guide roller 552, the second guide roller 552 is driven to rotate by a motor, and the second guide roller 552 is positioned above the drafting roller 551. A drawing cover plate 512 is arranged on the top of the drawing tank body 51, and the drawing cover plate 512 is a transparent plate. The draft cover 512 is also provided with a relief hole near the transfer roller 54, and the draft cover 512 is also provided with a relief hole near the draft roller 551. The second circulation pipe 56 is fixedly connected to the drawing tank 51, a second circulation pump 561 is provided on the second circulation pipe 56, and a valve 91 is also provided on the second circulation pipe 56.

The cold water passes through the second water inlet pipe 52, the second cold water cavity and the second water outlet pipe 53, so that the heat preservation of the drafting groove body 51 is realized. The draft tank 51 stores a waterproof modifying solution therein. The fiber preform passes through the transfer roller 54, the draft roller 551, and the second guide roller 552, and comes out of the draft tank 51. Since the drawing speed of the drawing roller 551 is greater than that of the drawing roller 45, the fiber preform is drawn, the length is increased, and the fineness is reduced.

Referring to fig. 5 and 6, the structure of the organic salt solidifying draft device 6 and the structure of the functional modifying draft device 5 are the same. The drafting speed of the drafting roller 551 in the organic salt solidifying drafting device 6 is larger than the drafting speed of the drafting roller 551 in the functional modification drafting device 5, so as to stretch the fiber primary finished product, increase the length and reduce the fineness.

Referring to fig. 7, the wire winding drying device 7 includes a drying chamber 71, an upper wire winding roller 72 and a lower wire winding roller 73 are rotatably connected in the drying chamber 71, and the upper wire winding roller 72 is positioned above the lower wire winding roller 73. The upper winding roller 72 and the lower winding roller 73 are driven to rotate by motors. The side wall of the drying chamber 71, which is close to the organic salt curing drafting device 6, is provided with a feed inlet, and the side wall of the drying chamber 71, which is close to the winding drafting device 8, is provided with a discharge outlet.

Referring to fig. 7, the winding traction device 8 includes a winding frame 81, a guide wheel 82 is rotatably connected to the winding frame 81, a winding traction roller 83 is provided on one side of the guide wheel 82, the winding traction roller 83 is rotatably connected to the winding frame 81, and the winding traction roller 83 is driven to rotate by a motor. The winding speed of the winding traction roller 83 is the same as the drafting speed of the drafting roller 551 in the organic salt solidification drafting device 6.

The spinning system has the advantages of stable spinning, convenient operation and convenient storage of collagen fibers through mutual coordination of the structures, and improves the performance of the collagen fibers.

Example 2

A spinning system for collagen fibers is different from embodiment 1 in that, referring to fig. 8, two extrusion assemblies 57 are uniformly provided between a transfer roller 54 and a drawing roller 551 in a drawing tank 51. The extrusion assembly 57 comprises a third bracket 571 arranged on one side of the drawing tank body 51, and a lower press roll 572 rotatably connected to the third bracket 571, wherein the lower press roll 572 is driven to rotate by a motor, an upper press roll 573 is arranged above the lower press roll 572, the upper press roll 573 is rotatably connected to the third bracket 571, the upper press roll 573 is driven to rotate by the motor, the upper press roll 573 and the lower press roll 572 are both positioned in the drawing tank body 51, and an extrusion gap for extruding a fiber primary product is formed between the upper press roll 573 and the lower press roll 572.

At this time, the fiber preform passes through the transfer roller 54, the pressing gap, the draft roller 551, and the second guide roller 552, and comes out of the draft tank 51. When the fiber primary product passes through the extrusion gap, the absorbed waterproof modification solution is extruded and then enters the waterproof modification solution again, the fiber primary product absorbs the waterproof modification solution again, the treatment effect of the waterproof modification solution on the fiber primary product is improved, and the performance of the collagen fiber is also improved.

Example 3

A spinning system for collagen fibers is different from embodiment 1 in that, referring to fig. 9 and 10, five reversing rollers 58 are disposed between the transfer roller 54 and the drawing roller 551 in the drawing tank 51, and the five reversing rollers 58 are staggered along the length direction of the drawing tank 51. The reversing roller 58 is disposed perpendicular to the length direction of the draft tank body 51, and the reversing roller 58 is rotatably connected to the side wall of the draft tank body 51. The reversing roller 58 is uniformly provided with a plurality of balls 581 along the length direction and the circumferential direction, the reversing roller 58 is provided with mounting holes 582 adapted to the balls 581, and the balls 581 roll in the mounting holes 582. The ball 581 is hollow inside, and a communication hole 583 communicating with the inside is opened in the ball 581 case.

At this time, the fiber preform passes through the transfer roller 54, the reversing roller 58, the draft roller 551, and the second guide roller 552, and comes out of the draft tank 51. When the fiber primary product bypasses the reversing roller 58, the reversing roller 58 rotates to increase disturbance of the waterproof modifying liquid, the ball 581 rolls in the mounting hole 582, the waterproof modifying liquid in the ball 581 flows out through the communication hole 583, contact between the fiber primary product and the waterproof modifying liquid is increased, treatment of the fiber primary product by the functional modifying solution is improved, and the performance of the collagen fiber can be improved.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. A spinning system for collagen fibers, characterized by: the spinning solution cooling and solidifying device comprises a spinning solution reaction kettle (1), wherein a defoaming kettle (2), a spinning device (3), an inorganic salt cooling and solidifying device (4), a functional modification drafting device (5), an organic salt solidifying and drafting device (6), a winding and drying device (7) and a winding and drawing device (8) are sequentially arranged at the downstream of the spinning solution reaction kettle (1); the solution adopted in the inorganic salt cooling and solidifying device (4) is inorganic salt solution; the solution used in the functional modification drafting device (5) is a functional modification solution; the solution used by the organic salt solidifying and drafting device (6) is organic salt solution;

the spinning device (3) comprises a spinning gooseneck (31) communicated with the deaeration kettle (2), a liquid pumping booster pump (32) for increasing spinning liquid pressure, and a spinning cap (33) arranged on the spinning gooseneck (31), wherein a plurality of discharge holes are uniformly formed in the spinning cap (33);

the inorganic salt cooling solidification device (4) comprises a cooling tank body (41) with an opening at the top end, the spinning nozzle (33) is positioned in the cooling tank body (41), a traction roller (45) is arranged in the cooling tank body (41) at one end far away from the spinning nozzle (33), the traction speed of the traction roller (45) is the same as the spinning speed of the spinning nozzle (33), a first cooling cavity is formed in the side wall of the cooling tank body (41), and a first water inlet pipe (42) and a first water outlet pipe (43) which are communicated with the first cooling cavity are arranged on the cooling tank body (41);

at least one dispersing component (48) is arranged between the spinning nozzle (33) and the traction roller (45) in the cooling tank body (41), the dispersing component (48) comprises a dispersing plate (481) which is detachably arranged on the cooling tank body (41), a plurality of material passing dispersing holes (482) which are in one-to-one correspondence with the discharging holes of the spinning nozzle (33) are arranged on the dispersing plate (481), the connecting lines of the material passing dispersing holes (482) and the discharging holes are arranged along the conveying direction,

an aggregation assembly (49) is arranged between the dispersing assembly (48) and the traction roller (45) in the cooling tank body (41), the aggregation assembly (49) comprises an aggregation plate (491) which is detachably arranged on the cooling tank body (41), and an aggregation hole (492) is formed in the aggregation plate (491).

2. A spinning system for collagen fibers according to claim 1, wherein: the cooling tank body (41) is provided with a cooling cover plate (412) at the opening and/or,

a liquid level pipe (413) communicated with the cooling tank body (41) is arranged on the cooling tank body, scales and/or are arranged on the liquid level pipe (413),

the cooling tank body (41) is provided with a first circulating pipe (47) communicated with the cooling tank body, and the first circulating pipe (47) is provided with a first circulating pump (471) and a valve (91).

3. A spinning system for collagen fibers according to claim 1, wherein: the function modification drafting device (5) comprises a drafting groove body (51) with an open top, a conveying roller (54) is arranged at one end, close to the cooling groove body (41), of the drafting groove body (51), a drafting roller (551) is arranged at the other end of the drafting groove body, the drafting speed of the drafting roller (551) is greater than that of the drafting roller (45), a second cooling cavity is formed in the side wall of the drafting groove body (51), and a second water inlet pipe (52) and a second water outlet pipe (53) which are communicated with the second cooling cavity are arranged on the drafting groove body (51).

4. A spinning system for collagen fibers according to claim 3, wherein: the drafting groove body (51) is internally provided with at least one extrusion component (57) between the conveying roller (54) and the drafting roller (551), the extrusion component (57) comprises a lower compression roller (572) arranged in the drafting groove body (51) and an upper compression roller (573) arranged in the drafting groove body (51), the upper compression roller (573) is located above the lower compression roller (572), and an extrusion gap is formed between the upper compression roller (573) and the lower compression roller (572).

5. A spinning system for collagen fibers according to claim 3, wherein: the drafting groove body (51) is provided with a drafting cover plate (512) at the opening part and/or,

the drafting groove body (51) is provided with a second circulating pipe (56) communicated with the drafting groove body, and the second circulating pipe (56) is provided with a second circulating pump (561) and a valve (91).

6. A spinning system for collagen fibers according to claim 3, wherein: the utility model discloses a drafting device, including drafting groove body (51), including conveyer roller (54), drafting roller (551), and be provided with two switching-over rollers (58) at least along drafting groove body (51) length direction in drafting groove body (51), switching-over roller (58) are provided with a plurality of inside hollow ball (581) along its length direction and circumference, set up on ball (581) and be linked together intercommunicating pore (583) rather than inside, set up mounting hole (582) on switching-over roller (58), ball (581) roll in mounting hole (582).

7. A spinning system for collagen fibers according to claim 3, wherein: the structure of the organic salt solidification drafting device (6) is the same as that of the functional modification drafting device (5), and the drafting speed of the drafting roller (551) in the organic salt solidification drafting device (6) is larger than that of the drafting roller (551) in the functional modification drafting device (5).

8. A spinning system for collagen fibers according to claim 1, wherein: the spinning solution reaction kettle (1) comprises a reaction kettle body (11), a feed pipe (12) arranged on the reaction kettle body (11), a first discharge pipe (13) arranged on the reaction kettle body (11), a stirring shaft (14) rotationally connected in the reaction kettle, a stirring motor (141) for enabling the stirring shaft (14) to rotate, and a stirring rod arranged on the stirring shaft (14), wherein a first protection Wen Kongqiang is arranged on the side wall of the reaction kettle body (11), a first heat preservation water inlet pipe (15) and a first heat preservation water outlet pipe (16) which are communicated with a first protection Wen Kongqiang are arranged on the reaction kettle body (11), a first air inlet pipe (17) and a first air outlet pipe (18) which are communicated with the inside of the reaction kettle body are arranged on the reaction kettle body (11), and valves (91) are arranged on the feed pipe (12), the first discharge pipe (13), the first air inlet pipe (17) and the first air outlet pipe (18) are all provided with.

9. A spinning system for collagen fibers according to claim 1, wherein: a filter (92) is communicated between the spinning solution reaction kettle (1) and the defoaming kettle (2), and the filter (92) is also arranged between the defoaming kettle (2) and the spinning device (3).