Production device of novel filament air velvet

Abstract

The invention discloses a novel filament air velvet production device, the filament air velvet comprises a core yarn and a fancy yarn, the core yarn is of a linear structure, the fancy yarn is of a three-dimensional structure, and the yarn is continuously wrapped in the extending direction synchronously; and the core yarns are distributed in a loose and fluffy manner. An adopted production device comprises a base, a yarn blowing assembly and an impact strip, through the unique design of the yarn blowing assembly, the feeding speed of the fancy yarn is larger than the feeding speed of the core yarn, and therefore the fancy yarn is wound around the periphery of the core yarn in a yarn inlet hole under the action of ventilation airflow, and then forming output is achieved. The whole structure is simple, the independently designed yarn blowing assembly is adopted, the pressure air duct is utilized, root fibers of core yarn and fancy yarn can be rapidly wound and interwoven together in a small space range, and then a fluffy fiber structure is formed at an outlet.

Description

Technical Field

[0001] The invention belongs to the technical field of fiber down production equipment, and in particular relates to a novel production device for filament gas down. Background Art

[0002] In the existing field of textile thermal insulation materials, commonly used materials, such as in the clothing field, are mostly down, cotton, etc., and in the home textile field, most of them are flakes, including polyester staple fiber flakes, cotton flakes, etc., and a small part uses down, silk, etc. as raw materials for high-end filling.

[0003] Nowadays, most of the filling materials in the textile industry are still hot-melt flakes, spray-bonded cotton or glue-free cotton flakes, including upright cotton, etc. A few of them are metal-coated composite flakes, wool-type composite thermal insulation flakes, etc., which are still the processing and application of short fibers. The main materials are still the disordered and reasonable stacking and integrated application of short fibers such as polyester fibers and low-melting-point fibers.

[0004] For example, the Chinese patent document with the Chinese patent application publication number CN114277504A discloses a composite glue-free cotton and a preparation method thereof, comprising an anti-drilling cotton layer and a glue-free cotton layer composited on the surface of the anti-drilling cotton layer, wherein the glue-free cotton layer is mainly composed of three-dimensional hollow polyester staple fibers and semi-dull low-melting point fibers; the mass ratio of the three-dimensional hollow polyester staple fibers and the semi-dull low-melting point fibers is controlled at 6.5-7.5:2.5-3.5; the anti-drilling cotton layer contains low-melting point fibers. It can be seen from the above content that the new glue-free cotton batting sheet is still a new type of glue-free cotton batting sheet formed by mixing and layering different staple fibers. Therefore, in the above technical solution, filament filling processing still cannot be achieved.

[0005] Another example is the patent document with publication number CN201580011595A, which discloses a feather-like cotton raw material and a method for manufacturing the same, providing a novel feather-like cotton raw material, which is free of animal-specific odor, has a sense of weight, a large volume, excellent washability, excellent heat preservation and insulation, and can be formed in a lighter weight. The feather-like cotton raw material is used to form cotton-like long fibers, which are cotton-like long fibers in the following state: the filaments of the axial wire / floating wire of the polyester-based raw yarn are bundled, entangled and connected with each other through air interweaving in the scattered atmosphere of the air, and the blocks with fluff balls are separated at intervals and integrated into a row; the diameter of the fluff ball-shaped blocks is 1.0 to 3.5 cm, and the fluff ball-shaped parts are continuously arranged along the length direction of the axial wire at intervals within a maximum limit of 10 cm.

[0006] This patent discloses the production of a long-filament velvet cluster, but the long-filament gas velvet is regular and in the shape of velvet clusters, with a certain distance between the velvet clusters, so that the overall velvet clusters have a granular feel. Summary of the invention

[0007] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a new type of filament gas down production device to solve the above-mentioned technical problems existing in the prior art.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] A new type of filament gas velvet production device, including a base, a yarn blowing component, and an impact bar.

[0010] The yarn blowing assembly is fixed by a base, the top of the yarn blowing assembly is used as a yarn inlet, the bottom is used as a yarn outlet, and an impact bar is arranged at the yarn outlet position at the bottom, so that the core yarn and the pattern yarn collide with the impact bar when they are yarned out;

[0011] The yarn blowing assembly is composed of an outer shell and an inner core, and a through-hole is formed in the middle of the outer shell, so that the inner core is placed in the through-hole as a whole;

[0012] The inner core is a through-hole structure that penetrates from top to bottom, and is used as a passage for core yarn and pattern yarn, and an air inlet is opened on the outer periphery of the inner core to communicate with the yarn inlet hole in the middle, so that when the core yarn and pattern yarn pass through the inner diameter of the yarn inlet hole, the air inlet continuously ventilates the yarn inlet hole in the middle of the inner core;

[0013] The feeding speed of the pattern yarn is made greater than the feeding speed of the core yarn, so that the pattern yarn is wound around the outer periphery of the core yarn under the action of the ventilation airflow in the yarn feeding hole and forms a covering motion and then reshaped and output.

[0014] Furthermore, a fixed seat is extended outward from the base, and the yarn blowing assembly as a whole is fixed to the fixed seat, and the inclination angle of the yarn outlet of the yarn blowing assembly is synchronously deflected by adjusting the deflection angle of the fixed seat.

[0015] Furthermore, the middle inner wall where the through hole of the cavity is located forms an arc-shaped surface, and forms a space channel between the inner wall and the air inlet of the inner core.

[0016] Furthermore, sealing rings are provided at the upper and lower ends where the cavity through hole is located, and the sealing rings are sealed with the outer walls of the two ends of the inner core that passes through the cavity through hole.

[0017] Furthermore, the inner diameter of the yarn inlet hole where the inner core is located decreases gradually from the upper opening to the lower opening.

[0018] Furthermore, at least one group of air inlets is arranged on the outer wall where the inner core is located, and they are distributed circumferentially.

[0019] Furthermore, the vertical angle between the air inlet of the inner core and the middle yarn inlet hole is 15-75 degrees, the number of holes is at least 2 groups, the size of the hole diameter is greater than 0.5 cm, and the air inlet pressure is 0.05-0.8 MPa.

[0020] Furthermore, the feeding speed of the pattern yarn is 40-100 times that of the core yarn.

[0021] Furthermore, the new filament gas down produced by the production device of the new filament gas down comprises a core yarn and a pattern yarn, wherein the core yarn presents a linear structure, and the pattern yarn presents a three-dimensional structure, and the pattern yarn forms a continuous wrapping of the yarn in the extension direction simultaneously;

[0022] The core yarn is distributed in a loose and fluffy manner;

[0023] The parameters of the filament gas down are as follows:

[0024] The curling radius is >0.5cm, the single yarn fineness is >0.5D, and the compression resilience is >60%.

[0025] Furthermore, the core yarn and pattern yarn are made of one or a mixture of fiber materials such as PE, PET, PA, PP, Viscose (viscose fiber), Rayon (rayon), Lyocel (soluble fiber), and the number of yarns is ≥1.

[0026] Beneficial effects of the present invention:

[0027] 1. The filament air plush formed in the present application has good compression resilience and cross-sectional hollowness, has strong formed fluffiness and curling plasticity, and can produce good warmth retention and comfort.

[0028] 2. The production device of filament air down used in the present application has a simple overall structure and adopts an independently designed yarn blowing component. By utilizing a pressure air duct, the root fibers of the core yarn and the pattern yarn can be quickly entangled and interwoven together in a smaller space, and then a fluffy fiber structure is formed at the outlet.

[0029] 3. In the present application, the inner core of the yarn blowing assembly is adopted, and the size of the middle yarn inlet hole, the deflection angle of the air inlet, and the air pressure can be changed to form an air down structure for different core yarns and pattern yarns without changing other structures. Therefore, the cost of improving different types of air down is extremely low, reducing the investment expenditure of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0031] Figure 1 It is a schematic diagram of the overall structure of a production device according to an embodiment of the present invention;

[0032] Figure 2 1 is a schematic diagram comparing the filament gas plush of the embodiment of the present invention with the existing filament gas plush;

[0033] Figure 3 is a schematic diagram of the cross-sectional structure of a production device according to an embodiment of the present invention;

[0034] Figure 4 is a schematic diagram of the outer shell structure of an embodiment of the present invention;

[0035] Figure 5 is a schematic diagram of the cross-sectional structure of an outer shell of an embodiment of the present invention;

[0036] Figure 6 is a schematic diagram of the inner core structure of an embodiment of the present invention;

[0037] Figure 7 It is a schematic diagram of the cross-sectional structure of the inner core of an embodiment of the present invention. DETAILED DESCRIPTION

[0038] The technical scheme in the embodiment of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiment of the present invention. Based on the embodiment 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] The embodiment of the present invention provides a novel filament gas pile, comprising a core yarn and a pattern yarn, wherein the core yarn presents a linear structure, and the pattern yarn presents a three-dimensional structure, and the pattern yarn forms a continuous pile bag in the extension direction of the yarn simultaneously;

[0040] The core yarn is distributed in a loose and fluffy manner;

[0041] At this time, the core yarn and pattern yarn are made of one or a mixture of fiber materials including but not limited to PE, PET, PA, PP, Viscose, Rayon, Lyocel, etc., and the number of yarns is ≥ 1. Figure 2 As shown, the left side is the existing filament gas down, and the right side is the filament gas down provided in this application. It can be seen that the number of clumps of the filament gas down in this application is obviously smaller than that of the existing filament gas down, and the fluffiness of its surface is more uniform, and local clumping rarely occurs.

[0042] like Figure 1 , Figure 3 As shown, the production device of the new filament gas down comprises a base 1, a yarn blowing assembly 2, and an impact bar 3.

[0043] At this time, a fixed pedestal 11 extends outward from the base 1, and the yarn blowing assembly 2 is fixed to the fixed pedestal 11 as a whole. The top of the yarn blowing assembly 2 serves as a yarn inlet (i.e., as an inlet for the core yarn and the pattern yarn), and the bottom serves as a yarn outlet (i.e., as an outlet for the core yarn and the pattern yarn). An impact bar 3 is provided at the bottom yarn outlet position, so that the core yarn and the pattern yarn collide with the impact bar 3 when they are yarned out. The design of the impact bar 3 increases the impact of the pattern yarn and the core yarn when passing through the impact bar, so that the single fibers on the pattern yarn and the core yarn fit more closely together, and will not be clumped together, thereby improving the strength and stability of the yarn. As a result, the pattern yarn forms a sheath-wrapped package on the core yarn, and this adhesion effect will ensure that the fibers of the pattern yarn and the core yarn are firmly bonded.

[0044] And by adjusting the deflection angle of the fixed pedestal 11, the inclination angle of the yarn outlet of the yarn blowing assembly 2 is synchronously deflected, so that the core yarn and the pattern yarn are blown out and the angle when they collide with the impact bar 3 changes. This adjustment of the yarn impact angle can change the tension change of the yarn during the drafting process, that is, the strength and uniformity of the coating formed by the core yarn and the pattern yarn reach the optimal value. And the adjusted deflection angle can reduce the friction between the yarn and the impact bar 3 directly under the action of the impact force, thereby extending the service life of the impact bar 3 and reducing the damage to the yarn performance, and reducing the end of the yarn that is easily caused by the impact, and better providing the continuity of the yarn when it is wrapped.

[0045] like Figure 6-Figure 7 As shown, the yarn blowing assembly 2 is composed of an outer shell 21 and an inner core 22, and a through cavity through hole 211 is formed in the middle of the outer shell 21, so that the inner core 22 is placed in the cavity through hole 211 as a whole; the inner wall of the middle part where the cavity through hole 211 is located forms an arc surface, and the upper and lower end surfaces match the outer diameter of the inner core 22, and form a space channel between the air inlet 221 of the inner core 22. The inner core 22 is a through hole structure that penetrates from top to bottom, which is used as a passage for core yarn and pattern yarn, and an air inlet 221 is opened on the outer periphery of the inner core 22 to communicate with the yarn inlet hole in the middle, so that when the core yarn and pattern yarn pass through the inner diameter of the yarn inlet hole, the air inlet 221 continuously ventilates the yarn inlet hole in the middle of the inner core 22.

[0046] In order to prevent the inner core 22 from shaking during ventilation, a locking bolt can be provided on the side of the outer shell 21 to lock the inner core 22. The inner core 22 can also be disassembled and replaced according to different core yarn and pattern yarn materials and deniers. The entire device only needs to replace the inner core 22 signal (the yarn inlet holes and air inlet 221 of different models of inner cores 22 have different sizes and inclination angles). There is no need to replace different production lines. While meeting production needs, the need for low-cost equipment improvement can be achieved.

[0047] At this time, after the outer shell 21 is connected to the air pump for ventilation, the air flow can enter the air inlet 221 of the inner core 22 along the curved surface of the inner wall of the cavity through hole 211. When multiple air inlets 221 are arranged on the periphery of the inner core 22, the air source obtained by the air inlet 221 is stable (that is, the gas pressure in each direction can reach the same or similar level) and a lower air pressure can be generated, so that the generated air flow can pass through the air inlet 221 and enter the yarn inlet hole in the middle of the inner core 22 (when the core yarn and pattern yarn fibers enter the low-pressure area formed in the inner core 22, they will quickly disperse in the air to form a fiber airflow. This low-pressure environment helps the fibers to be better dispersed and evenly distributed, thereby improving the quality of the fiber airflow. In addition, low air pressure can also promote the mixing of fibers and air, improve the suspension of fibers, and make them easier and more evenly deposited on the receiving surface. Low air pressure plays a key role in the formation of fiber airflow and helps to improve the quality and uniformity of fiber airflow).

[0048] And according to the need, there is an angle of 30-60 degrees between the air inlet 221 and the middle yarn inlet hole where the inner core 22 is located (it is tilted downward. This tilted downward structure can produce lower air pressure, avoiding blockage at the yarn inlet hole when the pattern yarn and the core yarn are entangled). When the air flow enters the yarn inlet hole where the inner core is located through the air inlet 221, due to the difference in feeding speed between the core yarn and the pattern yarn, the pattern yarn with a faster transmission speed will stay longer in the yarn inlet hole where the inner core 22 is located per unit time. Then, under the impact of the air flow at the air inlet 221, the pattern yarn is wrapped around the core yarn under the impact of the high-speed airflow. 2 The yarn inlet hole in the middle part presents a structure that is wide at the top and narrow at the bottom (its structure with a wider upper opening is convenient for feeding the core yarn and the pattern yarn, and a narrower lower opening, so that it can further improve the generation of lower air pressure in a smaller space). Therefore, when the pattern yarn and the core yarn are transmitted downward, they will be blown and folded in multiple layers (or multiple times) in a narrower space area (where there is lower air pressure) to achieve the mutual interweaving of the pattern yarn and the core yarn, which is not easy to fall off, and can achieve the strength of the mutual curling of the pattern yarn and the core yarn, and the effect of wrapping each other is better. The core yarn is pulled out from the lower part of the middle yarn inlet hole where the inner core 22 is located, which further reduces the blockage of the yarn inlet hole when the pattern yarn and the core yarn are entangled.

[0049] When leaving the yarn outlet at the bottom of the inner core 22, the space between the entangled pattern yarn and core yarn is released instantly (that is, it is quickly released from the extremely small space at the bottom of the yarn inlet hole of the inner core 22, and the pressure can generally reach 0.05-0.8MPa, and the part where the pattern yarn and core yarn are entangled is released from a small space to a large space, which will cause extreme expansion), thereby forming a relatively loose and fluffy structure. Moreover, since the core yarn and the pattern yarn are continuously output at this time, the velvet produced is also continuous, with better fluffiness and is not prone to slippage.

[0050] Under this pressure state, the core yarn fibers will not break, and the fluff fibers can be well disordered and evenly distributed, which is beneficial to improving its warmth-keeping effect. Under this air pressure, the blowing speed can be increased, thereby improving production efficiency.

[0051] In addition, in the present application, there is a difference in the feeding speed of the core yarn and the pattern yarn (generally, the feeding speed of the pattern yarn is more than 1 times that of the core yarn, and currently 10, 15, 20, and 25 times are commonly used. The larger the multiple, the larger the pattern. At this feeding ratio, the strength of the pattern yarn and the core yarn can be moderate, and it has a certain elasticity). The pattern yarn is subjected to a high-temperature preset treatment before feeding, which can make the pattern yarn softer and easier to curl and fluffy (that is, the multiple pattern yarns are separated and loose from each other) under the impact of high-pressure gas, and the fluffiness of the yarn after heating is improved. When the root yarns between the pattern yarn and the core yarn are loose, when passing through the yarn feeding hole of the inner core 22 with a smaller space, the root yarns between the pattern yarn and the core yarn will be interwoven with each other under the action of airflow disturbance to form a wrapped winding. This winding method is continuous, so no clumps of fluff will appear. In the prior art, in order to provide higher resilience, the pattern yarn is usually interlaced with the core yarn by blowing through a non-continuous feeding method. However, this method, while achieving better resilience, will cause the pattern yarn and the core yarn to clumping intermittently when interlacing, and this intermittent pattern yarn can easily slip on the surface of the core yarn.

[0052] In the present application, the continuous pattern yarn and core yarn discharge method is adopted, and only the feeding speed is controlled, so that the warmth retention and comfort after the unfolding can be achieved without affecting the warmth retention and comfort. The better flexibility also reduces the breakage that is easy to occur under the impact of high-pressure airflow.

[0053] like Figure 4 , Figure 5 As shown, since the blowing of the air inlet 221 requires high-pressure gas, in order to ensure air tightness, a sealing ring 201 is usually provided on the outer shell 21 at the upper and lower ends where the cavity through hole 211 is located, and the sealing ring 201 forms a seal with the outer walls of the two ends of the inner core 22 passing through the cavity through hole 211.

[0054] In order to improve its wear resistance and service life, the inner core 22 and the impact bar 3 are made of wear-resistant materials such as metal or ceramic, and when such materials come into impact contact with the yarn, the yarn will not be scratched.

[0055] The energy consumption of the entire equipment is also extremely low, and the energy consumption only occurs when blowing, which can meet the requirements of energy conservation and emission reduction, reducing costs and increasing efficiency.

[0056] The relevant parameters of the final filament gas down are as follows: the cross-sectional hollowness is >20% (most of the existing artificial gas downs are short fiber structures, 15%, so the fluffiness formed is poor).

[0057] The curling radius is > 0.5 cm (the fiber flakes are currently made by carding and thermal bonding of short fibers, and their fluffiness mainly comes from the air gaps after the short fibers are stacked, so the fluffiness is poor).

[0058] The single-filament fineness is >0.5D (the existing single-filaments on the market include ultra-fine denier fibers below 1D, fine denier fibers around 1D, and coarse denier fibers above 3D. Ultra-fine denier fibers are expensive, so the commonly used fibers in the market are mostly above 3D).

[0059] Compression resilience > 60% (according to the test standard of Appendix C of GB / T 22796-2021, the current indicator of this application can reach about 60%), so whether in terms of appearance or actual comfort and warmth retention, the long plush provided by this application has extremely high compression resilience.

[0060] The parameters are shown in Table 1 below:

[0061] Table 1

[0062]

[0063] Among them, the relationship between the bulkiness and the inclination angle of the air inlet of the inner core is shown in Table 2 below (Note)

[0064] Table 2

[0065]

[0066]

[0067] The comparison between feed speed (feed ratio of pattern yarn to core yarn) and bulkiness is shown in Table 3 below:

[0068] Table 3

[0069] Serial number Overfeed ratio Flower size (diameter) / cm <![CDATA[Fluffiness (cm 3 / g)]]> 1 5 1.5 101.55 2 10 1.8 120.69 3 15 2.2 134.91 4 20 2.8 132.62 5 30 3.5 125.10 6 40 4.1 119.71 7 50 4.7 121.18 8 60 5.3 114.96 9 70 5.6 101.55 10 80 5.9 95.01 11 90 6.1 84.22 12 100 6.2 79.31

[0070] In summary, by setting the inlet inclination angle of the inner core and the overfeed ratio (core yarn and flower yarn) in the present application, the flower size of the air velvet after molding can be effectively increased, and the air fluffiness can be increased simultaneously.

[0071] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A new type of filament gas down production device, characterized in that: It comprises a base (1), a yarn blowing assembly (2), and an impact bar (3). The yarn blowing assembly (2) is fixed by a base (1), the top of the yarn blowing assembly (2) serves as a yarn inlet, the bottom serves as a yarn outlet, and a collision bar (3) is arranged at the yarn outlet position at the bottom, so that the core yarn and the pattern yarn collide with the collision bar (3) when they are discharged; The yarn blowing assembly (2) is composed of an outer shell (21) and an inner core (22), and a through cavity through hole (211) is formed in the middle of the outer shell (21), so that the inner core (22) is entirely placed in the cavity through hole (211); The inner core (22) is a through hole structure that penetrates from top to bottom and is used as a passage for core yarn and pattern yarn. An air inlet (221) is provided on the outer periphery of the inner core (22) and is connected to the yarn inlet hole in the middle, so that when the core yarn and pattern yarn pass through the inner diameter of the yarn inlet hole, the air inlet (221) continuously ventilates the yarn inlet hole in the middle of the inner core (22).

2. The novel filament gas down production device according to claim 1 is characterized in that: A fixed pedestal (11) extends outward from the base (1) and fixes the yarn blowing assembly (2) as a whole to the fixed pedestal (11). By adjusting the deflection angle of the fixed pedestal (11), the inclination angle of the yarn outlet of the yarn blowing assembly (2) is synchronously deflected.

3. The production device of the new filament gas down according to claim 1 is characterized in that: The middle inner wall where the cavity through hole (211) is located forms an arc-shaped surface, and forms a spatial channel between the inner wall and the air inlet (221) of the inner core (22).

4. The production device of the new filament gas down according to claim 1 is characterized in that: Sealing rings (201) are provided at the upper and lower ends of the cavity through hole (211), and the sealing rings (201) and the outer walls of the two ends of the inner core (22) penetrating the cavity through hole (211) are sealed.

5. The production device of the new filament gas down according to claim 1 is characterized in that: The inner diameter of the yarn inlet hole where the inner core (22) is located decreases gradually from the upper opening to the lower opening.

6. The novel filament gas down production device according to claim 5 is characterized in that: At least one group of air inlets (221) is arranged on the outer wall where the inner core (22) is located, and is distributed in a circumferential direction.

7. The production device of the novel filament gas down according to claim 5 is characterized in that: The vertical angle between the air inlet (221) of the inner core (22) and the middle yarn inlet hole is 15-75 degrees, the number of holes is at least 2 groups, the size of the hole diameter is greater than 1 cm, and the air inlet pressure is 0.05-0.8 MPa.

8. The novel filament gas down production device according to claim 1 is characterized in that: The feeding speed of the pattern yarn is 40-100 times that of the core yarn.

9. The novel filament gas down production device according to claim 1 is characterized in that: The new filament gas down produced by the production device of the new filament gas down comprises a core yarn and a pattern yarn, wherein the core yarn has a linear structure and the pattern yarn has a three-dimensional structure, and the pattern yarn forms a continuous wrapping of the yarn in the extension direction at the same time; The core yarn is distributed in a loose and fluffy manner; The parameters of the filament gas velvet are as follows: The curling radius is >0.5cm, the single yarn fineness is >0.5D, and the compression resilience is >60%.

10. The novel filament gas down production device according to claim 9, characterized in that: The core yarn and pattern yarn are made of one or a mixture of PE, PET, PA, PP, Viscose, Rayon, and Lyocel fiber materials, and the number of yarns is ≥1.

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