High-shrinkage antibacterial superfine fiber preparation device and process

Abstract

The invention relates to the field of textile material preparation, and discloses a high-shrinkage antibacterial superfine fiber preparation device and process, the high-shrinkage antibacterial superfine fiber preparation device comprises a placement table, the top of the placement table is fixedly connected with a working box, the right side of the working box is rotatably connected with a pressing plate through a rotating shaft, the bottom of the inner wall of the working box is fixedly connected with a sliding cavity, and the high-shrinkage antibacterial superfine fiber preparation device further comprises a placement mechanism; comprising sliding tables slidably connected with the two sides of the inner wall of the sliding cavity, a connecting frame is fixedly connected to the tops of the sliding tables, a containing box is fixedly connected to the inner wall of the connecting frame, a contact groove is formed in the surface of the containing box, and movable holes are formed in the two sides of the containing box. Through the arrangement of the placing mechanism, after the superfine fibers make contact with the inner wall of the contact groove, heat emitted by spraying holes in the top of an absorption block makes contact with the surfaces of the superfine fibers, and it is guaranteed that the sides, facing the contact groove, of the superfine fibers are not rapidly cooled by cooling liquid; and the surface of the superfine fiber yarn is uneven in yarn evenness.

Description

Technical Field

[0001] The invention relates to the field of textile material preparation, in particular to a high-shrinkage antibacterial ultrafine fiber preparation device and process. Background Art

[0002] The project has developed a production device for stable ultrafine fiber spinning. By setting a circulating cooling water jacket divided into left and right halves under the ceramic thermal insulation cotton, the cooling circulating water can still maintain a certain temperature after absorbing a large amount of heat, changing the previous cooling mode that simply relies on the side blowing system; the heat energy is reused through the heat exchanger of the cooling water circulation unit to reduce energy waste; the device has a simple structure, is easy to assemble and is cost-effective.

[0003] The patent application with application number CN201410069934.0 discloses a high-shrinkage ultrafine acrylic fiber and a preparation method thereof, including spinning, washing, drafting, oiling, drying, shaping and high-shrinkage treatment. The ultra-realistic cashmere-like high-shrinkage ultrafine acrylic fiber prepared by the present invention has good properties such as strength, elongation, shrinkage, dyeability, elasticity, glossiness, and air permeability.

[0004] However, the patent also has the following shortcomings, that is, when the existing technology uses cooling circulating water to cool the ultrafine fiber filaments, the cooling circulating water can absorb a large amount of heat on the surface of the ultrafine fiber filaments, while retaining a part of the temperature inside the ultrafine fiber filaments, but it cannot guarantee that the cooling circulating water can take away a stable heat value on the surface of the ultrafine fiber filaments, causing the cooling speed of the surface of the ultrafine fiber filaments to be too fast or too slow, and finally resulting in an increase in the unevenness of the ultrafine fiber filaments or an increase in the temperature gradient between the surface and the inner layer of the filaments, resulting in cracks. In view of this situation, a high-shrinkage antibacterial ultrafine fiber preparation device and process are specially proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a high-shrinkage antibacterial ultrafine fiber preparation device and process to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a high-shrinkage antibacterial ultrafine fiber preparation device, comprising a placement table, a working box is fixedly connected to the top of the placement table, a pressing plate is rotatably connected to the right side of the working box through a rotating shaft, a sliding cavity is fixedly connected to the bottom of the inner wall of the working box, and a transmission mechanism is arranged on both sides of the inner wall of the working box, and further comprising:

[0007] The placement mechanism includes a slide table slidably connected to both sides of the inner wall of the sliding cavity, a connecting frame is fixedly connected to the top of the slide table, a placement box is fixedly connected to the inner wall of the connecting frame, a contact groove is opened on the surface of the placement box, movable holes are opened on both sides of the placement box, diffusion mechanisms are arranged on both sides of the placement box, rolling wheels are rotatably connected to both sides of the inner wall of the movable hole through a rotating shaft, an absorption component is arranged at the bottom of the inner wall of the contact groove, and the ultrafine fiber filaments are pushed by the rotation of the rolling wheel.

[0008] The absorption component includes a chassis fixedly connected to the bottom of the inner wall of the contact groove, an absorption block fixedly connected to the surface of the chassis, the absorption block is fixedly connected to the inner wall of the contact groove, a transfer rod fixedly connected to the top of the chassis, an absorption tube fixedly connected to the top of the transfer rod, and a contact block fixedly connected to the surface of the absorption tube, and the absorbed heat is discharged into the absorption block through the chassis via the transfer rod.

[0009] According to the above technical solution, the diffusion mechanism includes a placement rack, one end of which is fixedly connected to both sides of the placement box, a cooling tank is fixedly connected to the surface of the placement rack, a connecting shaft is rotatably connected to both sides of the inner wall of the cooling tank, a transfer ring is fixedly connected to the surface of the connecting shaft, and when the connecting shaft rotates, it drives the coating block to rotate.

[0010] According to the above technical solution, the diffusion mechanism also includes a transfer tube, which is fixedly connected to the surface of the transfer ring, a pushing block is fixedly connected to the surface of the cooling tank, an end of the transfer ring away from the transfer ring is plugged into the inner wall of the pushing block, a diffusion tube is fixedly connected to the left side of the pushing block, and a cooling assembly is provided on the surface of the connecting shaft to dissipate heat to the outside through the diffusion tube.

[0011] According to the above technical solution, the cooling assembly includes a covering block, which is fixedly connected to the surface of the connecting shaft, and the two ends of the transfer ring are fixedly connected to the two sides of the covering block. The inner wall of the covering block is slidably connected with a telescopic tube, and the inner wall of the telescopic tube is fixedly connected with a spraying pipe, and the heat is transferred into the interior through the transfer rings connected on both sides of the covering block.

[0012] According to the above technical solution, the cooling assembly also includes a connecting arm, one end of the connecting arm is fixedly connected to the bottom of the coating block, the end of the connecting arm away from the coating block is fixedly connected to a contact tube, the surface of the connecting arm is fixedly connected to a pushing ring, the end of the pushing ring away from the connecting arm is fixedly connected to the surface of the telescopic tube, and the evaporated heat is transferred into the interior of the coating block through the contact tube.

[0013] According to the above technical solution, the transmission mechanism includes a transmission block, which is fixedly connected to both sides of the inner wall of the working box, and a heat dissipation hole is opened on the surface of the transmission block. The inner wall of the transmission block is fixedly connected with a telescopic cavity, and the inner wall of the telescopic cavity is slidably connected with a pushing tube. Suction components are arranged on both sides of the inner wall of the transmission block, and when the absorption disk rotates, its surface will push the pushing tube.

[0014] According to the above technical solution, the suction assembly includes an absorption disk, both ends of which are rotatably connected to the inner wall of the transfer ring through a rotating shaft, and telescopic blocks are slidably connected to the inner wall of the absorption disk on both sides. The telescopic blocks on the surface of the absorption disk will slide inward on the inner wall of the absorption disk due to rotational inertia.

[0015] According to the above technical solution, the suction component also includes a telescopic belt, one end of which is fixedly connected to the surface of the telescopic block, and the end of the telescopic belt away from the telescopic block is fixedly connected to the inner wall of the absorption plate, and the bottom of the inner wall of the absorption plate is fixedly connected to a heat absorbing plate, and the inner wall of the heat absorbing plate is slidably connected to a covering plate. The telescopic block will squeeze the telescopic belt so that the telescopic belt bends and telescopes inward.

[0016] According to the above technical solution, the number of the transfer rings is set to six, and the six transfer rings are symmetrically installed on both sides of the inner wall of the working box with the center line of the working box as the symmetry axis. After the surface of the absorption disk is pushed, it will rotate inside the transfer ring.

[0017] A high shrinkage antibacterial ultrafine fiber preparation process comprises the following steps:

[0018] S1: Prepare the bulk polymer, according to weight, prepare 10 parts of polyester fiber, 5 parts of nano carbon fiber, 12 parts of cotton fiber, 3 parts of viscose and 15 parts of silk fiber as the main raw materials, and 30g of copper powder.

[0019] S2: Use high-viscosity PET chips with a characteristic viscosity of 0.883dl / g and a melting point of 260℃ as the matrix for spinning, increase the temperature of each zone of the screw, appropriately reduce the spinning speed, select between 3500-3900m / min, and increase the temperature of the GR1 / GR2 hot rollers to 95℃ and 126℃, and the stretching multiple is smaller than that of ordinary PET, selecting 2.0-2.3 times; introduce different adaptive copper powders and component fibers in the spinning process, accurately control the spinning modification process, and prepare high-shrinkage antibacterial ultrafine fibers.

[0020] S3: The bulk polymer is melted in the screw extruder and fed into the spinning part, and then quantitatively fed into the spinning assembly by a spinning pump. By designing a special-shaped fiber cross-section, a cross-shaped spinneret is used for spinning. The moisture absorption and air permeability of the fiber are improved by the microporous structure on the fiber surface. On the other hand, the larger specific surface area of ​​the cross-shaped fiber is utilized to enhance the capillary effect. The cross-shaped polyester fiber utilizes the capillary phenomenon generated by the four grooves on the fiber surface to promote the conduction of water on the fiber and accelerate the evaporation of human sweat to release heat. After the spinning is filtered, it is squeezed out from the capillary pores of the spinneret.

[0021] S4: The heat generated by the evaporation of the spun yarn squeezed out from the pores of the spinneret is absorbed and stored by the fusion of the coolant and the heat on the surface of the ultrafine fiber, and finally acts on the surface of the ultrafine fiber, thereby ensuring that the surface of the ultrafine fiber can dissipate heat evenly and there will be no problem of excessive cooling of the fiber surface.

[0022] S5: The liquid filaments gradually solidify when passing through the cooling medium, and are then stretched into filaments at high speed by the winding device below.

[0023] Compared with the prior art, the present invention provides a high-shrinkage antibacterial ultrafine fiber preparation device and process, which has the following beneficial effects:

[0024] 1. The present invention is provided with a placement mechanism. When the ultrafine fiber filaments come into contact with the inner wall of the contact groove, the heat emitted through the spray hole on the top of the absorption block will come into contact with the surface of the ultrafine fiber filaments, thereby ensuring that the side of the ultrafine fiber filaments facing the contact groove will not be rapidly cooled by the coolant, which would cause uneven strands on the surface of the ultrafine fiber filaments.

[0025] 2. The present invention is provided with a cooling component and a rolling wheel. The expansion and contraction of the telescopic tube into the storage hole will generate pressure on the coolant inside the storage hole, so that the coolant is sprayed out from the slot at one end of the spray tube through the interior of the telescopic tube. After the coolant is sprayed onto the surface of the ultrafine fiber filament, it will merge with the heat on the surface of the ultrafine fiber filament, so that a part of the coolant is heated and evaporated. By setting up this component, the surface of the ultrafine fiber filament can be evenly dissipated to avoid uneven heat dissipation on the surface of the ultrafine fiber filament, which will cause an increase in the unevenness of the filament strands.

[0026] 3. The present invention is provided with a diffusion mechanism, which transfers heat into the interior of the diffusion tube through the heat conduction groove inside the push block, and dissipates the heat to the outside through the diffusion tube. By setting up this mechanism, the coolant and the heat on the surface of the ultrafine fiber filament can be merged, the heat generated by evaporation can be absorbed and stored, and finally acted on the surface of the ultrafine fiber filament, thereby ensuring that the surface of the ultrafine fiber filament can dissipate heat evenly, and the problem of excessive cooling speed on the surface of the fiber filament will not occur.

[0027] 4. The present invention is provided with a transfer mechanism, which expands and contracts the interior of the telescopic cavity by pushing one end of the tube, thereby causing pressure on the interior of the transfer ring, so that the heat inside the transfer ring is compressed and dissipated outward from the surface of the heat dissipation hole. The heat dissipated outward through the heat dissipation hole will flow to the top of the ultrafine fiber filament on the surface of the contact groove. By setting up this mechanism, the problem of uneven filaments caused by excessive heat loss at the top of the ultrafine fiber filament can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the working box of the present invention;

[0031] Figure 3 It is a three-dimensional diagram of the placement mechanism of the present invention;

[0032] Figure 4 is a perspective view of an absorbent assembly of the present invention;

[0033] Figure 5 It is a cross-sectional structural schematic diagram of the diffusion mechanism of the present invention;

[0034] Figure 6 is a three-dimensional diagram of a cooling assembly of the present invention;

[0035] Figure 7 is a three-dimensional diagram of the transmission mechanism of the present invention;

[0036] Figure 8 It is a three-dimensional diagram of the suction component of the present invention.

[0037] In the figure: 1, placing table; 2, working box; 3, pressing plate; 4, sliding chamber; 5, placing mechanism; 501, sliding table; 502, connecting frame; 503, placing box; 504, contact groove; 505, rolling wheel; 506, movable hole; 507, absorption component; 5071, chassis; 5072, absorption block; 5073, transfer rod; 5074, absorption tube; 5075, contact block; 6, diffusion mechanism; 601, placing frame; 602, cooling tank; 603, connecting shaft; 604, transfer ring; 605 , transfer tube; 606, pushing block; 607, spreading tube; 608, cooling assembly; 6081, coating block; 6082, telescopic tube; 6083, connecting arm; 6084, pushing ring; 6085, spray tube; 6086, contact tube; 7, transfer mechanism; 701, transfer block; 702, pushing tube; 703, heat dissipation hole; 704, telescopic cavity; 705, suction assembly; 7051, absorption plate; 7052, telescopic block; 7053, telescopic belt; 7054, heat absorption plate; 7055, coating plate. DETAILED DESCRIPTION

[0038] 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.

[0039] For example, see Figure 1-Figure 4 The present invention provides a technical solution: a high-shrinkage antibacterial ultrafine fiber preparation device, comprising a placement table 1, a working box 2 is fixedly connected to the top of the placement table 1, a pressing plate 3 is rotatably connected to the right side of the working box 2 through a rotating shaft, a sliding cavity 4 is fixedly connected to the bottom of the inner wall of the working box 2, and a transmission mechanism 7 is arranged on both sides of the inner wall of the working box 2, and also includes:

[0040] The placement mechanism 5 includes a slide 501 slidably connected to both sides of the inner wall of the sliding cavity 4, a connecting frame 502 is fixedly connected to the top of the slide 501, a placement box 503 is fixedly connected to the inner wall of the connecting frame 502, a contact groove 504 is opened on the surface of the placement box 503, movable holes 506 are opened on both sides of the placement box 503, and diffusion mechanisms 6 are arranged on both sides of the placement box 503, and rolling wheels 505 are rotatably connected to both sides of the inner wall of the movable hole 506 through a rotating shaft, and a plurality of friction blocks are installed on the surface of the rolling wheel 505. When the rolling wheel 505 rotates, the friction force generated by the friction blocks can push the ultrafine fiber filaments, and an absorption component 507 is arranged at the bottom of the inner wall of the contact groove 504.

[0041] The absorption component 507 includes a chassis 5071 fixedly connected to the bottom of the inner wall of the contact groove 504, an absorption block 5072 fixedly connected to the surface of the chassis 5071, the absorption block 5072 is fixedly connected to the inner wall of the contact groove 504, a transfer rod 5073 is fixedly connected to the top of the chassis 5071, an absorption tube 5074 is fixedly connected to the top of the transfer rod 5073, and a contact block 5075 is fixedly connected to the surface of the absorption tube 5074. A heat conduction groove is provided on the surface of the contact block 5075, through which the heat on the surface of the microfiber filament can be transferred into the interior of the absorption tube 5074, and finally conducted into the interior of the absorption block 5072.

[0042] The working method of the first embodiment is as follows: first, polyester fiber, nano carbon fiber, cotton fiber, viscose and silk fiber are used as the main raw materials, and the main raw materials selected are bulk polymers. When the selected bulk polymer is fed into the screw extruder, the formation of fibers from polymer melt is a physical state change process generated by the heat transfer process, that is, the solid polymer is transformed into a flowing viscous fluid at high temperature, and is ejected from the spinneret hole under a certain spinning pressure, and then cooled and solidified into a solid filament in the air. High-viscosity chips with an intrinsic viscosity of 0.883 dl / g and a melting point of 260°C are selected for spinning. With the increase of intrinsic viscosity, the apparent viscosity of polyester increases, and the shear thinning phenomenon becomes more obvious. Molecules with high molecular weight have high entanglement density and difficult flow. At high shear rate, the number of disentanglements with high intrinsic viscosity is high, and there is no time to recover. Therefore, it is necessary to increase the temperature of each zone of the screw. The screw zone 4 adopts 305℃-320℃. Due to the increase of flow resistance of high viscosity melt, it is easy to have high heat generation and thermal degradation caused by excessive shear rate. When designing the spinning assembly, 60g of 20-40 mesh metal sand is used, and the lower layer of the sand cup is selected with a 140 mesh three-layer mesh, and the upper layer of the spinneret is selected with a 450 mesh 5-layer mesh. This design can reduce the total pressure drop, and the residence time of the melt in the pipeline is appropriately increased, which is more in line with the requirements of high viscosity slice spinning. According to the high viscosity characteristics, the control of the cooling air of the tow also needs to be paid attention to in the spinning process, and the interference wind from the outside of the yarn room is strictly controlled to ensure that the tow is in a steady flow state. The air supply temperature is 23.0℃, the air supply humidity is 84.5%, the air supply pressure is 600Pa, and the air cylinder pressure is 30Pa.Since the high viscosity melt performance is different from that of ordinary PET slice melt performance, it will have a certain impact on spinning and post-processing, so it is necessary to appropriately reduce the spinning speed and select between 3500-3900m / min, and the temperature of GR1 / GR2 hot rollers also needs to be increased, GR1 temperature 95℃, GR2 temperature 126℃, and the stretching multiple is smaller than that of ordinary PET, selecting 2.0-2.3 times. The prepared high shrinkage antibacterial ultrafine fiber is sent to the spinning part and quantitatively fed into the spinning assembly through a spinning pump. By designing a special-shaped fiber cross-section, a cross-shaped spinneret is used for spinning. The moisture absorption and air permeability of the fiber are improved through the microporous structure on the fiber surface. On the other hand, the larger specific surface area of ​​the cross-shaped fiber is used to enhance the capillary effect. The cross-shaped polyester fiber uses the capillary phenomenon generated by the four grooves on the fiber surface to promote the conduction of water on the fiber and accelerate the evaporation of human sweat to release heat. Liquid filaments will be squeezed out from the capillaries of the spinneret, and then the pressing plate 3 will be pulled upward to wind the ultrafine fiber filaments ejected from the spinneret into the contact groove 504 on the surface of the placement box 503. The surface of the ultrafine fiber filaments will come into contact with the surface of the rolling wheel 505, and the surface of the ultrafine fiber filaments will also come into contact with the surface of the contact block 5075. A part of the heat on the surface of the ultrafine fiber filaments will be transferred into the interior of the transfer rod 5073 through the absorption tube 5074, and the absorbed heat will be discharged into the interior of the absorption block 5072 through the chassis 5071 through the transfer rod 5073. When the ultrafine fiber filaments come into contact with the inner wall of the contact groove 504, the heat emitted through the spray hole on the top of the absorption block 5072 will come into contact with the surface of the ultrafine fiber filaments to ensure that the side of the ultrafine fiber filaments facing the contact groove 504 will not be rapidly cooled by the coolant, which would cause uneven filaments on the surface of the ultrafine fiber filaments.

[0043] Example 2: Based on Example 1, continue to refer to Figure 5-Figure 6 The diffusion mechanism 6 includes a placement rack 601, one end of which is fixedly connected to both sides of the placement box 503, a cooling tank 602 is fixedly connected to the surface of the placement rack 601, and connecting shafts 603 are rotatably connected to both sides of the inner wall of the cooling tank 602, and a transfer ring 604 is fixedly connected to the surface of the connecting shaft 603.

[0044] The diffusion mechanism 6 also includes a transfer tube 605, which is fixedly connected to the surface of the transfer ring 604. A push block 606 is fixedly connected to the surface of the cooling tank 602. The end of the transfer ring 604 away from the transfer ring 604 is plugged into the inner wall of the push block 606. A spreading tube 607 is fixedly connected to the left side of the push block 606. A cooling assembly 608 is provided on the surface of the connecting shaft 603.

[0045] The cooling assembly 608 includes a covering block 6081, which is fixedly connected to the surface of the connecting shaft 603, and the two ends of the transfer ring 604 are fixedly connected to the two sides of the covering block 6081. The inner wall of the covering block 6081 is slidably connected with a telescopic tube 6082, and a storage hole is opened inside the covering block 6081. The storage hole extends into the interior of the cooling tank 602 through the interior of the connecting shaft 603. Coolant is stored in the cooling tank 602. The telescopic tube 6082 is extended and retracted toward the storage hole, which generates pressure on the coolant inside the storage hole. The inner wall of the telescopic tube 6082 is fixedly connected with a spray pipe 6085.

[0046] The cooling assembly 608 also includes a connecting arm 6083, one end of which is fixedly connected to the bottom of the covering block 6081, and the end of the connecting arm 6083 away from the covering block 6081 is fixedly connected to a contact tube 6086, and two absorption grooves are provided on the surface of the contact tube 6086, through which external heat can be absorbed, and the surface of the connecting arm 6083 is fixedly connected to a push ring 6084, and the end of the push ring 6084 away from the connecting arm 6083 is fixedly connected to the surface of the telescopic tube 6082.

[0047] The working method of the second embodiment is as follows: by starting the power device inside the cooling tank 602, the connecting shaft 603 is driven to rotate inside the cooling tank 602. When the connecting shaft 603 rotates, the coating block 6081 is driven to rotate. During the rotation, the surface of the ultrafine fiber filament comes into contact with the surface of the contact tube 6086, so that the surface of the ultrafine fiber filament is pushed through the contact tube 6086. The surface of the ultrafine fiber filament will drive the rolling wheel 505 to rotate inside the movable hole 506 due to the push. The ultrafine fiber filament is pushed by the rotation of the rolling wheel 505, so that it is in the contact groove 504. The inner wall slides, and the ultra-fine fiber filaments inside the contact groove 504 push the contact tube 6086, thereby driving the connecting arm 6083 to bend inwardly, and the connecting arm 6083 bent inwardly will squeeze the telescopic tube 6082 through one end of the pushing ring 6084, so that one end of the telescopic tube 6082 is telescoped toward the inside of the covering block 6081, so that the coolant passes through the inside of the telescopic tube 6082 and is sprayed out from the slot hole at one end of the spray pipe 6085. After being sprayed onto the surface of the ultra-fine fiber filaments, the coolant will merge with the heat on the surface of the ultra-fine fiber filaments, so that a part of the coolant is heated and evaporated. By setting up this component, the surface of the ultrafine fiber filaments can be evenly cooled to avoid uneven cooling on the surface of the ultrafine fiber filaments, which will lead to an increase in the uneven drying rate of the filaments. The heat after the coolant is evaporated will be absorbed into the interior by the contact tube 6086, and the evaporated heat will be transferred into the interior of the coating block 6081 through the contact tube 6086. The transfer ring 604 connected on both sides of the coating block 6081 will transfer the heat into the interior, and then the connecting shaft 603 is rotated to drive one end of the transfer tube 605 to move to the inner wall of the pushing block 606, and the end of the transfer tube 605 will receive the heat and then move outward. After the side expands and contracts into the interior of the pushing block 606, the heat inside the transfer ring 604 is transferred into the interior of the pushing block 606 through the transfer tube 605, and the heat is transferred into the interior of the diffusion tube 607 through the heat conduction groove inside the pushing block 606, and the heat is dissipated to the outside through the diffusion tube 607. By setting up this mechanism, the coolant and the heat on the surface of the ultra-fine fiber filament can be merged, the heat generated by evaporation can be absorbed and stored, and finally acted on the surface of the ultra-fine fiber filament, thereby ensuring that the surface of the ultra-fine fiber filament can dissipate heat evenly, and the problem of excessive cooling speed on the surface of the fiber filament will not occur.

[0048] Example 3: Based on Example 2, continue to refer to Figure 7-Figure 8 The transfer mechanism 7 includes a transfer block 701, which is fixedly connected to both sides of the inner wall of the working box 2. A heat dissipation hole 703 is provided on the surface of the transfer block 701. A telescopic cavity 704 is fixedly connected to the inner wall of the transfer block 701. A pushing tube 702 is slidably connected to the inner wall of the telescopic cavity 704. Suction components 705 are provided on both sides of the inner wall of the transfer block 701.

[0049] The suction assembly 705 includes an absorption disk 7051 , both ends of which are rotatably connected to both sides of the inner wall of the transmission block 701 via a rotating shaft, and telescopic blocks 7052 are slidably connected to both sides of the inner wall of the absorption disk 7051 .

[0050] The suction component 705 also includes a telescopic belt 7053, one end of which is fixedly connected to the surface of the telescopic block 7052, and the end of the telescopic belt 7053 away from the telescopic block 7052 is fixedly connected to the inner wall of the absorption disk 7051, and the telescopic belt 7053 has telescopic elasticity, and compressed gas is injected into the interior of the telescopic belt 7053. When the absorption disk 7051 stops rotating, the telescopic belt 7053 will be stretched outward due to the lack of push from the telescopic block 7052. At this time, the gas discharged into the interior of the heat absorbing disk 7054 will flow back into the telescopic belt 7053, and the coating disk 7055 has telescopic elasticity, so that one end of the coating disk 7055 can be stretched into the interior of the heat absorbing disk 7054, thereby wrapping the absorbed heat into the interior of the absorption disk 7051, and the bottom of the inner wall of the absorption disk 7051 is fixedly connected to the heat absorbing disk 7054, and the inner wall of the heat absorbing disk 7054 is slidably connected to the coating disk 7055.

[0051] The working method of the third embodiment is as follows: after the cooling work of the ultra-fine fiber filaments on the inner wall of the contact groove 504 is completed, the telescopic device inside the working box 2 is started again to drive the slide 501 to slide on the inner wall of the sliding cavity 4. During the sliding process, the pushing block 606 on the surface of the cooling tank 602 will push the absorption disk 7051, so that the surface of the absorption disk 7051 will rotate inside the transfer block 701 after being pushed, and the telescopic block 7052 on the surface of the absorption disk 7051 will slide inwardly on the inner wall of the absorption disk 7051 due to the rotational inertia, and the telescopic block 7052 will squeeze the telescopic belt 7053, so that the telescopic belt 7053 bends and stretches inwardly. When the telescopic belt 7053 stretches inwardly, the gas inside it will be squeezed into the interior of the heat absorbing disk 7054. After the gas is sprayed into the interior of the heat absorbing disk 7054, it will push the coating disk 7055 on its inner wall, thereby driving the coating disk 7055 When the heat dissipates to the outside through the diffusion holes on the surface of the diffusion tube 607, the heat will be absorbed into the interior through the heat absorption holes on the inner wall of the heat absorption disk 7054, and the internal heat of the absorption disk 7051 will be transferred into the interior of the transfer block 701 through its two ends. When the absorption disk 7051 rotates, its surface will push the pushing tube 702, so that the pushing tube 702 is extended inward into the interior of the telescopic cavity 704, and the interior of the telescopic cavity 704 is extended and contracted by one end of the pushing tube 702, thereby causing pressure to the interior of the transfer block 701, so that the heat inside the transfer block 701 is compressed and dissipated outward from the surface of the heat dissipation holes 703, and the heat dissipated outward through the heat dissipation holes 703 will flow to the top of the ultrafine fiber filaments on the surface of the contact groove 504, thereby avoiding the problem of uneven filaments caused by excessive heat loss at the top of the ultrafine fiber filaments.

[0052] A high shrinkage antibacterial ultrafine fiber preparation process comprises the following steps:

[0053] S1: Prepare the bulk polymer, according to weight, prepare 10 parts of polyester fiber, 5 parts of nano carbon fiber, 12 parts of cotton fiber, 3 parts of viscose and 15 parts of silk fiber as the main raw materials, and 30g of copper powder.

[0054] S2: Use high-viscosity PET chips with a characteristic viscosity of 0.883dl / g and a melting point of 260℃ as the matrix for spinning, increase the temperature of each zone of the screw, appropriately reduce the spinning speed, select between 3500-3900m / min, and increase the temperature of the GR1 / GR2 hot rollers to 95℃ and 126℃, and the stretching multiple is smaller than that of ordinary PET, selecting 2.0-2.3 times; introduce different adaptive copper powders and component fibers in the spinning process, accurately control the spinning modification process, and prepare high-shrinkage antibacterial ultrafine fibers.

[0055] S3: The bulk polymer is melted in the screw extruder and fed into the spinning part, and then quantitatively fed into the spinning assembly by a spinning pump. By designing a special-shaped fiber cross-section, a cross-shaped spinneret is used for spinning. The moisture absorption and air permeability of the fiber are improved by the microporous structure on the fiber surface. On the other hand, the larger specific surface area of ​​the cross-shaped fiber is utilized to enhance the capillary effect. The cross-shaped polyester fiber utilizes the capillary phenomenon generated by the four grooves on the fiber surface to promote the conduction of water on the fiber and accelerate the evaporation of human sweat to release heat. After the spinning is filtered, it is squeezed out from the capillary pores of the spinneret.

[0056] S4: The heat generated by the evaporation of the spun yarn squeezed out from the pores of the spinneret is absorbed and stored by the fusion of the coolant and the heat on the surface of the ultrafine fiber, and finally acts on the surface of the ultrafine fiber, thereby ensuring that the surface of the ultrafine fiber can dissipate heat evenly and there will be no problem of excessive cooling of the fiber surface.

[0057] S5: The liquid filaments gradually solidify when passing through the cooling medium, and are then stretched into filaments at high speed by the winding device below.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-shrinkage antibacterial ultrafine fiber preparation device, comprising a placement table (1), the top of the placement table (1) is fixedly connected to a working box (2), the right side of the working box (2) is rotatably connected to a pressing plate (3) via a rotating shaft, the bottom of the inner wall of the working box (2) is fixedly connected to a sliding cavity (4), and transmission mechanisms (7) are arranged on both sides of the inner wall of the working box (2), characterized in that: Also includes: The placement mechanism (5) comprises a slide (501) slidably connected to both sides of the inner wall of the sliding cavity (4); the top of the slide (501) is fixedly connected to a connecting frame (502); the inner wall of the connecting frame (502) is fixedly connected to a placement box (503); a contact groove (504) is provided on the surface of the placement box (503); movable holes (506) are provided on both sides of the placement box (503); diffusion mechanisms (6) are provided on both sides of the placement box (503); rolling wheels (505) are rotatably connected to both sides of the inner wall of the movable hole (506) via a rotating shaft; and an absorption component (507) is provided at the bottom of the inner wall of the contact groove (504); The absorption component (507) comprises a chassis (5071) fixedly connected to the bottom of the inner wall of the contact groove (504); an absorption block (5072) is fixedly connected to the surface of the chassis (5071); the absorption block (5072) is fixedly connected to the inner wall of the contact groove (504); a transfer rod (5073) is fixedly connected to the top of the chassis (5071); an absorption tube (5074) is fixedly connected to the top of the transfer rod (5073); and a contact block (5075) is fixedly connected to the surface of the absorption tube (5074).

2. The high shrinkage antibacterial ultrafine fiber preparation device according to claim 1, characterized in that: The diffusion mechanism (6) includes a placement rack (601), one end of which is fixedly connected to both sides of a placement box (503), a cooling tank (602) is fixedly connected to the surface of the placement rack (601), a connecting shaft (603) is rotatably connected to both sides of the inner wall of the cooling tank (602), and a transfer ring (604) is fixedly connected to the surface of the connecting shaft (603).

3. The high shrinkage antibacterial ultrafine fiber preparation device according to claim 2, characterized in that: The diffusion mechanism (6) also includes a transfer tube (605), which is fixedly connected to the surface of the transfer ring (604), and a push block (606) is fixedly connected to the surface of the cooling tank (602). The end of the transfer ring (604) away from the transfer ring (604) is plugged into the inner wall of the push block (606), and the left side of the push block (606) is fixedly connected to a spreading tube (607), and a cooling assembly (608) is provided on the surface of the connecting shaft (603).

4. The high shrinkage antibacterial ultrafine fiber preparation device according to claim 3, characterized in that: The cooling assembly (608) includes a coating block (6081), which is fixedly connected to the surface of the connecting shaft (603), and the two ends of the transfer ring (604) are fixedly connected to the two sides of the coating block (6081). The inner wall of the coating block (6081) is slidably connected to a telescopic tube (6082), and the inner wall of the telescopic tube (6082) is fixedly connected to a spray pipe (6085).

5. The high shrinkage antibacterial ultrafine fiber preparation device according to claim 4, characterized in that: The cooling assembly (608) also includes a connecting arm (6083), one end of which is fixedly connected to the bottom of the covering block (6081), one end of which is away from the covering block (6081) is fixedly connected to a contact tube (6086), and a push ring (6084) is fixedly connected to the surface of the connecting arm (6083), and one end of which is away from the connecting arm (6083) is fixedly connected to the surface of the telescopic tube (6082).

6. The high shrinkage antibacterial ultrafine fiber preparation device according to claim 1, characterized in that: The transmission mechanism (7) comprises a transmission block (701), the transmission block (701) is fixedly connected to the inner wall of the working box (2) on both sides, a heat dissipation hole (703) is provided on the surface of the transmission block (701), a telescopic cavity (704) is fixedly connected to the inner wall of the transmission block (701), a pushing tube (702) is slidably connected to the inner wall of the telescopic cavity (704), and a suction assembly (705) is provided on both sides of the inner wall of the transmission block (701).

7. The high shrinkage antibacterial ultrafine fiber preparation device according to claim 6, characterized in that: The material suction component (705) comprises an absorption plate (7051), the two ends of which are rotatably connected to the inner wall of the transmission block (701) via a rotating shaft, and telescopic blocks (7052) are slidably connected to the inner wall of the absorption plate (7051).

8. The high shrinkage antibacterial ultrafine fiber preparation device according to claim 7, characterized in that: The suction component (705) also includes a telescopic belt (7053), one end of which is fixedly connected to the surface of the telescopic block (7052), and one end of the telescopic belt (7053) away from the telescopic block (7052) is fixedly connected to the inner wall of the absorption plate (7051), and the bottom of the inner wall of the absorption plate (7051) is fixedly connected to a heat absorbing plate (7054), and the inner wall of the heat absorbing plate (7054) is slidably connected to a covering plate (7055).

9. The high shrinkage antibacterial ultrafine fiber preparation device according to claim 6, characterized in that: The number of the transfer blocks (701) is set to six, and the six transfer blocks (701) are symmetrically installed on both sides of the inner wall of the working box (2) with the center line of the working box (2) as the symmetry axis.

10. A process for preparing high shrinkage antibacterial ultrafine fibers, characterized in that: The following steps are involved: S1: Prepare the bulk polymer, according to weight, prepare 10 parts of polyester fiber, 5 parts of nano carbon fiber, 12 parts of cotton fiber, 3 parts of viscose and 15 parts of silk fiber as the main raw materials, and 30g of copper powder; S2: Use high-viscosity PET chips with a characteristic viscosity of 0.883dl / g and a melting point of 260°C as the matrix for spinning, increase the temperature of each zone of the screw, appropriately reduce the spinning speed, select between 3500-3900m / min, and increase the temperature of the GR1 / GR2 hot rollers to 95°C for GR1 and 126°C for GR2. The stretching multiple is smaller than that of ordinary PET, and is selected to be 2.0-2.3 times; introduce different adaptability copper powders and component fibers in the spinning process, accurately control the spinning modification process, and prepare high-shrinkage antibacterial ultrafine fibers; S3: The bulk polymer is melted in the screw extruder and then fed into the spinning part, and then quantitatively fed into the spinning assembly by the spinning pump. The cross-shaped fiber cross section is designed, and the spinning adopts a cross-shaped spinneret. The microporous structure on the fiber surface improves the moisture absorption and air permeability of the fiber. On the other hand, the larger specific surface area of ​​the cross-shaped fiber is used to enhance the capillary effect. The cross-shaped polyester fiber utilizes the capillary phenomenon generated by the four grooves on the fiber surface to promote the conduction of water on the fiber and accelerate the evaporation of human sweat to release heat. After the spinning is filtered, it is extruded from the capillary pores of the spinneret; S4: The heat generated by the evaporation of the spinning fibers extruded from the capillaries of the spinneret is absorbed and stored by the cooling liquid and the heat on the surface of the ultrafine fiber, and finally acts on the surface of the ultrafine fiber, thereby ensuring that the surface of the ultrafine fiber can dissipate heat evenly and the problem of excessive cooling speed on the surface of the fiber will not occur; S5: The liquid filaments gradually solidify when passing through the cooling medium, and are then stretched into filaments at high speed by the winding device below.

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