A device and method for preparing copper-based antibacterial fiber based on blending spinning

Abstract

The application discloses a copper-based antibacterial fiber preparation device and method based on blending spinning, which comprises a base, a horizontally arranged mixing cylinder is fixed on the base, a first feeding port and a second feeding port which are in communication with the inside of the mixing cylinder are arranged on the mixing cylinder, one end of the mixing cylinder is communicated with a heating cylinder, the heating cylinder is communicated into a cooling assembly, the outlet end of the cooling assembly is connected into a spinning device, and an electrostatic winding device is arranged at a certain distance in front of the spinning device. Compared with the prior art, the application can make the copper ion distribution of the product more uniform and the spinning quality better.

Description

Technical Field

[0001] This invention relates to the field of textile technology, specifically to an apparatus and method for preparing copper-based antibacterial fibers based on blend spinning. Background Technology

[0002] With increasing public awareness of health and hygiene, antibacterial fiber materials have found widespread application in various fields. Copper, as a natural antibacterial material, has broad application prospects. Therefore, researching and preparing copper-based antibacterial fiber materials has become a popular research direction. Blending spinning technology is a commonly used fiber composite technology that can mix fibers of two or more different materials to prepare novel fiber materials. In the preparation of copper-based antibacterial fibers, PP masterbatch and copper ion salts are typically used for blending and spinning. However, existing technologies have some shortcomings: First, during the blending process, the PP masterbatch and copper ion salt melt at high temperatures. Typically, the melting point of PP masterbatch is around 160°C, while the melting point of copper ion salts is even higher. Due to their different melting points, it is difficult to achieve thorough mixing. This leads to uneven distribution of copper ions in the fiber, thus affecting its antibacterial effect. Second, during the blending spinning process, the molten mixture needs to be shaped by a spinneret. However, due to the excessively high temperature of the mixture, the spinning process becomes unstable, affecting product quality.

[0003] Therefore, it is necessary to provide an apparatus and method for preparing copper-based antibacterial fibers based on blend spinning to solve the problems mentioned in the background art. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a copper-based antibacterial fiber preparation device based on blended spinning, comprising a base, a horizontally placed mixing cylinder fixed on the base, a feed inlet 1 and a feed inlet 2 communicating with the interior of the mixing cylinder, a heating cylinder at one end connected to a heating cylinder, the heating cylinder being connected to a cooling assembly, the outlet end of the cooling assembly being connected to a spinning device, and an electrostatic winding device being provided at a certain distance in front of the spinning device.

[0005] Furthermore, as a preferred embodiment, the mixing cylinder is rotatably provided with a rotating shaft, one end of which passes through the mixing cylinder and can be driven to rotate by a driving device, and the rotating shaft is provided with helical blades on the outer wall inside the mixing cylinder.

[0006] Furthermore, preferably, the heating cylinder has an air inlet on its side wall, and the air inlet is connected to a heating air pump.

[0007] Furthermore, preferably, the rotating shaft is provided with stirring blades on the outer wall inside the heating cylinder.

[0008] Furthermore, as a preferred embodiment, the cooling assembly includes a water tank, which contains a cooling pipe. One end of the cooling pipe is connected to a heating cylinder, and the other end is connected to a spinneret. The water tank is connected to flowing water.

[0009] Furthermore, as a preferred embodiment, two supports are fixed inside the cooling pipe at a certain distance, and an elastic filling bladder is provided between the supports.

[0010] Furthermore, as a preferred embodiment, a fixed cylinder is fixed between the two supports, and a sliding shaft slidably passes through the fixed cylinder. Multiple support plates are distributed around the fixed cylinder, and the support plates are supported inside the filling bladder. One side of the support plate is hinged to the fixed cylinder via a connecting rod one, and the other side of the support plate is hinged to the sliding shaft via a connecting rod two through a groove in the side wall of the fixed cylinder.

[0011] Furthermore, as a preferred embodiment, one end of the sliding shaft is rotatably fitted with a rotating ring, the rotating ring being threadedly connected to the sliding shaft, and the rotating ring also being connected through to an adjusting disc fitted on the outer wall of the cooling pipe, the inner wall of the adjusting disc being connected to the cooling pipe via a sealing ring.

[0012] A method of using an apparatus for preparing copper-based antibacterial fibers based on blend spinning includes:

[0013] S1. Prepare PP masterbatch and copper ion salt, and place them into feed inlet one and feed inlet two respectively. Turn on the heating air pump to send hot air into the heating cylinder through the air inlet;

[0014] S2. Start the rotating shaft and stirring blades through the drive device, so that the spiral blades can evenly bring the PP masterbatch and copper ion salt into the heating cylinder;

[0015] S3. In the heating cylinder, hot air melts the PP masterbatch and melts the copper ion salt into liquid copper ions, thereby fusing PP and copper ions. At the same time, the stirring blades agitate the liquid material to mix PP and copper ions evenly.

[0016] S4. Liquid material enters the cooling component through the cooling pipe and is cooled down in the water tank, thereby preventing the material temperature entering the spinneret from being too high and causing the spinneret temperature to be too high.

[0017] S5. Liquid material flows from the cooling assembly. By rotating the adjusting turntable, the filling bladder can be expanded or contracted to change the thickness of the gap between the filling bladder and the cooling pipe. This allows for different flow efficiencies to be adjusted according to the temperature of the liquid material. That is, the higher the temperature of the liquid material, the thinner the gap between the filling bladder and the cooling pipe is adjusted, ensuring that the liquid material can be cooled to a suitable spinneret temperature to enter the spinneret.

[0018] S6. In the spinneret, liquid material is sprayed out through the nozzle and wound up by the electrostatic winding device to form copper-based antibacterial fiber.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] In this invention, the water in the water tank can cool the liquid material flowing through the cooling pipe, thereby preventing the material entering the spinneret from being too hot and causing the spinneret temperature to be too high. If the spinneret temperature is too high, the extruded fibers will be uneven and stick together. At the same time, it will also affect the structure and performance of the fibers, making the fibers more fragile and prone to breakage, resulting in fiber deformation.

[0021] In this invention, the liquid material flowing through the cooling pipe is distributed in a ring shape in the gap between the cooling pipe and the filling bladder, ensuring sufficient contact between the liquid material and the cooling pipe and preventing uneven cooling caused by the higher temperature of the liquid material in the center of the cooling pipe. By rotating the adjusting turntable, the rotating ring can screw the sliding shaft through the thread, causing the sliding shaft to slide relative to the fixed cylinder. Pushing the sliding shaft can expand or retract the support plate, thereby causing the filling bladder to expand or contract, changing the thickness of the gap between the filling bladder and the cooling pipe. This allows for adjustment of different flow efficiencies according to the temperature of the liquid material; that is, the higher the temperature of the liquid material, the thinner the gap between the filling bladder and the cooling pipe is adjusted, ensuring that the liquid material can be cooled to a suitable spinning temperature. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a device for preparing copper-based antibacterial fibers based on blend spinning;

[0023] Figure 2 This is a schematic diagram of the mixing cylinder and the heating cylinder.

[0024] Figure 3 This is a schematic diagram of the cooling component.

[0025] Figure 4 This is a structural schematic diagram of the support plate;

[0026] In the diagram: 1. Base; 2. Mixing cylinder; 21. Spiral blade; 3. Feed inlet 1; 4. Feed inlet 2; 5. Heating cylinder; 51. Air inlet; 52. Stirring blade; 6. Cooling assembly; 61. Water tank; 62. Cooling pipe; 63. Filling bladder; 64. Support; 65. Fixed cylinder; 66. Sliding shaft; 67. Support plate; 68. Connecting rod 1; 69. Connecting rod 2; 610. Rotating ring; 7. Spinneret; 8. Electrostatic winding device; 9. Drive device; 91. Rotating shaft; 10. Heating air pump; 11. Adjusting turntable. Detailed Implementation

[0027] Please see Figure 1In this embodiment of the invention, a copper-based antibacterial fiber preparation device based on blended spinning includes a base 1, on which a horizontally placed mixing cylinder 2 is fixed. The mixing cylinder 2 is provided with a feed inlet 3 and a feed inlet 4 communicating with its interior. One end of the mixing cylinder 2 is connected to a heating cylinder 5, which is connected to a cooling assembly 6. The outlet end of the cooling assembly 6 is connected to a spinning device 7, and an electrostatic winding device 8 is provided at a certain distance in front of the spinning device 7.

[0028] Please see Figure 2 In this embodiment, a rotating shaft 91 is rotatably provided inside the mixing cylinder 2. One end of the rotating shaft 91 passes through the mixing cylinder 2 and can be driven to rotate by the driving device 9. The rotating shaft 91 is provided with spiral blades 21 on the outer wall inside the mixing cylinder 2. The spiral blades 21 can uniformly bring the PP masterbatch and copper ion salt from the feed inlet 3 and feed inlet 4 into the heating cylinder 5.

[0029] In this embodiment, the heating cylinder 5 has an air inlet 51 on its side wall, which is connected to the heating air pump 10. The melting point of PP masterbatch is around 160°C, while the melting point of copper ion salt is higher. Therefore, to mix these two masterbatches, the temperature must be raised to a sufficiently high level to completely melt the copper ion masterbatch, thereby fusing PP and copper ions.

[0030] In this embodiment, the rotating shaft 91 is provided with stirring blades 52 on the outer wall inside the heating cylinder 5. The stirring blades 52 agitate the liquid material to ensure that PP and copper ions are mixed evenly.

[0031] Please see Figure 3 In this embodiment, the cooling assembly 6 includes a water tank 61, and a cooling pipe 62 is provided inside the water tank 61. One end of the cooling pipe 62 is connected to the heating cylinder 5, and the other end is connected to the spinning device 7. The water tank 61 is connected to flowing water. The water in the water tank 61 can cool and lower the temperature of the liquid material flowing through the cooling pipe 62, thereby preventing the material entering the spinning device 7 from being too hot and causing the spinning temperature to be too high. If the spinning temperature is too high, the extruded fibers will be uneven and stick together. At the same time, it will also affect the structure and properties of the fibers, making the fibers more fragile, easy to break, and causing fiber deformation.

[0032] Please see Figure 4 In this embodiment, two supports 64 spaced at a certain distance are fixed inside the cooling pipe 62, and an elastic filling bladder 63 is provided between the supports 64. The filling bladder 63 is made of heat-resistant rubber, and the liquid material flowing through the cooling pipe 62 is distributed in a ring shape in the gap between the cooling pipe 62 and the filling bladder 63, so that the liquid material can have sufficient contact with the cooling pipe 62 and prevent the liquid material in the center of the cooling pipe 62 from having a higher temperature, resulting in uneven cooling.

[0033] In this embodiment, a fixed cylinder 65 is fixed between the two supports 64. A sliding shaft 66 slidably passes through the fixed cylinder 65. Multiple support plates 67 are distributed around the fixed cylinder 65. The support plates 67 are supported inside the filling bladder 63. One side of the support plate 67 is hinged to the fixed cylinder 65 via a connecting rod 68, and the other side of the support plate 67 is hinged to the sliding shaft 66 via a connecting rod 69 passing through a groove in the side wall of the fixed cylinder 65. That is, by pushing the sliding shaft 66, the support plates 67 can be expanded or retracted, thereby causing the filling bladder 63 to expand or contract, thus changing the thickness of the gap between the filling bladder 63 and the cooling pipe 62. This allows for adjustment of different flow efficiencies according to the temperature of the liquid material. Specifically, the higher the temperature of the liquid material, the thinner the gap between the filling bladder 63 and the cooling pipe 62 should be, ensuring that the liquid material can be cooled to a suitable spinning temperature.

[0034] In this embodiment, a rotating ring 610 is rotatably fitted onto one end of the sliding shaft 66. The rotating ring 610 is threadedly connected to the sliding shaft 66, and the rotating ring 610 is also connected through to an adjusting disc 11 fitted onto the outer wall of the cooling pipe 62. The inner wall of the adjusting disc 11 is connected to the cooling pipe 62 via a sealing ring. That is, by rotating the adjusting disc 11, the rotating ring 610 can be screwed onto the sliding shaft 66 via the thread, causing the sliding shaft 66 to slide relative to the fixed cylinder 65.

[0035] A method of using an apparatus for preparing copper-based antibacterial fibers based on blend spinning includes:

[0036] S1. Prepare PP masterbatch and copper ion salt, and put them into feed inlet one and feed inlet two respectively. Turn on the heating air pump 10 to send hot air into the heating cylinder 5 through the air inlet 51;

[0037] S2. The drive device 9 starts the rotating shaft 91 and stirring blade 52, so that the spiral blade 21 evenly brings the PP masterbatch and copper ion salt into the heating cylinder 5.

[0038] S3. In the heating cylinder 5, hot air melts the PP masterbatch and melts the copper ion salt into liquid copper ions, thereby fusing PP and copper ions. At the same time, the stirring blade 52 stirs the liquid material to make the PP and copper ions mix evenly.

[0039] S4. Liquid material enters the cooling component 6 through the cooling pipe 62 and is cooled down in the water tank 61, thereby preventing the material temperature entering the spinneret 7 from being too high and causing the spinneret temperature to be too high.

[0040] S5. Liquid material flows from the cooling assembly 6. By rotating the adjusting turntable 11, the filling bladder 63 can expand or contract to change the thickness of the gap between the filling bladder 63 and the cooling pipe 62. This allows for different flow efficiencies to be adjusted according to the temperature of the liquid material. That is, the higher the temperature of the liquid material, the thinner the gap between the filling bladder 63 and the cooling pipe 62 is adjusted, ensuring that the liquid material can be cooled to a suitable spinneret temperature to enter the spinneret 7.

[0041] S6. In the spinneret 7, liquid material is sprayed out through the nozzle and wound up by the electrostatic winding device 8 to form copper-based antibacterial fiber.

[0042] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for preparing copper-based antibacterial fibers based on blend spinning, comprising a base (1), characterized in that, A horizontally placed mixing cylinder (2) is fixed on the base (1). The mixing cylinder (2) is provided with a feed inlet 1 (3) and a feed inlet 2 (4) communicating with its interior. One end of the mixing cylinder (2) is connected to a heating cylinder (5). The heating cylinder (5) is connected to a cooling assembly (6). The outlet end of the cooling assembly (6) is connected to a spinneret (7). An electrostatic winding device (8) is provided at a certain distance in front of the spinneret (7). The cooling assembly (6) includes a water tank (61), and a cooling pipe (62) is provided inside the water tank (61). One end of the cooling pipe (62) is connected to the heating cylinder (5), and the other end is connected to the spinning device (7). The water tank (61) is connected to flowing water. The cooling pipe (62) has two brackets (64) fixed inside, spaced at a certain distance, and an elastic filling bladder (63) is provided between the brackets (64); A fixed cylinder (65) is fixed between the two brackets (64). A sliding shaft (66) is slidably passed through the fixed cylinder (65). A number of support plates (67) are distributed around the fixed cylinder (65). The support plates (67) are supported inside the filling bladder (63). One side of the support plate (67) is hinged to the fixed cylinder (65) through a connecting rod (68). The other side of the support plate (67) is hinged to the sliding shaft (66) through a through groove in the side wall of the fixed cylinder (65) through a connecting rod (69). One end of the sliding shaft (66) is rotatably fitted with a rotating ring (610), the rotating ring (610) is threadedly connected to the sliding shaft (66), and the rotating ring (610) is also connected through to an adjusting disc (11) fitted on the outer wall of the cooling pipe (62), the inner wall of the adjusting disc (11) is connected to the cooling pipe (62) by a sealing ring.

2. The apparatus for preparing copper-based antibacterial fibers based on blend spinning according to claim 1, characterized in that, The mixing cylinder (2) is rotatably provided with a rotating shaft (91), one end of which passes through the mixing cylinder (2) and can be driven to rotate by a driving device (9). The rotating shaft (91) has a spiral blade (21) on the outer wall inside the mixing cylinder (2).

3. The apparatus for preparing copper-based antibacterial fibers based on blend spinning according to claim 2, characterized in that, The heating cylinder (5) has an air inlet (51) on its side wall, and the air inlet (51) is connected to the heating air pump (10).

4. The apparatus for preparing copper-based antibacterial fibers based on blend spinning according to claim 3, characterized in that, The rotating shaft (91) has stirring blades (52) on the outer wall inside the heating cylinder (5).

5. A method for preparing copper-based antibacterial fibers based on blend spinning, comprising using the apparatus for preparing copper-based antibacterial fibers based on blend spinning as described in claim 4, characterized in that, Includes the following steps: S1. Prepare PP masterbatch and copper ion salt, and put them into feed port one and feed port two respectively. Turn on the heating air pump (10) and send hot air into the heating cylinder (5) through the air inlet (51). S2. Start the rotating shaft (91) and stirring blade (52) through the drive device (9) so that the spiral blade (21) can evenly bring the PP masterbatch and copper ion salt into the heating cylinder (5). S3. In the heating cylinder (5), hot air melts the PP masterbatch and melts the copper ion salt into liquid copper ions, thereby fusing PP with copper ions. At the same time, the stirring blade (52) stirs the liquid material to make the PP and copper ions mix evenly. S4. Liquid material enters the cooling assembly (6) through the cooling pipe (62) and is cooled down in the water tank (61) to prevent the material temperature entering the spinneret (7) from being too high and causing the spinneret temperature to be too high. S5. Liquid material flows from the cooling assembly (6), and by rotating the adjusting turntable (11), the filling bag (63) can expand or contract to change the thickness of the gap between the filling bag (63) and the cooling pipe (62), thereby adjusting the flow efficiency according to the temperature of the liquid material. That is, the higher the temperature of the liquid material, the thinner the gap between the filling bag (63) and the cooling pipe (62) is adjusted, ensuring that the liquid material can be cooled to a suitable spinning temperature to enter the spinning device (7). S6. In the spinneret (7), liquid material is sprayed out through the nozzle and wound up by the electrostatic winding device (8) to form copper-based antibacterial fiber.

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