CN111394810A - Down-like feather preparation device and working method thereof - Google Patents

Abstract

The invention discloses a down-like feather preparation device and a working method thereof, wherein the down-like feather preparation device comprises the following steps: the polymer pushed out of the central hole is used as a down-like core layer, and the polymer pushed out of the central hole circumferentially distributed in circles forms a down-like down layer; the farther away from the through hole of the central hole, the greater the degree of branching of the polymer it pushes out; the branching component consists of a plurality of branching rings, the diameter of each branching ring and the supplied power supply voltage are gradually increased, and the branching rings can rotate and are not in contact with the polymer; after the polymer forms the velvet, the velvet is drawn to a cutting device to obtain the down-like feather. The down-like feather manufactured by the invention simulates the integral structure of the down feather, and is filled with a material with lower density, so that the down feather is close to the down feather from the structural and functional aspects.

Description

Down-like feather preparation device and working method thereof

Technical Field

The invention relates to the field of manufacturing of clothing textile fabrics, in particular to a down-like feather preparation device and a working method thereof.

Background

In winter, people generally select heavy down jackets as waterproof, snow-proof and windproof warm-keeping clothes, and the down jackets are used as filling materials of the down jackets and are a mixture of down and down. The feather is a feather sheet, plays a supporting role in the down feather and can enable the down feather to rebound rapidly; the down is a down cluster, and is the body and value of the down. The velvet is a three-dimensional spherical structure which is a lobate structure consisting of a velvet nucleus and a plurality of radiating velvet filaments and is similar to dandelion. The floss is formed by overlapping thousands of tiny scales, and each scale is hollow. Each pile filament has a plurality of diamond segments, and the diamond segments are filled with non-flowing air. Meanwhile, a large amount of air is fixed between the velvet threads and between the velvet flowers. This is the secret of why down is so warm. With the improvement of breeding cost and the influence of avian influenza, the cost of down jackets is continuously increased, and a novel down feather substitute is imperatively searched. However, the down coat has the advantages of excellent performance, high heat preservation rate and light weight, and common cotton coats cannot be reached, let alone replaced.

Disclosure of Invention

The invention overcomes the defects of the prior art and provides a down-like feather preparation device and a working method thereof.

In order to achieve the purpose, the invention adopts the technical scheme that: a down-like preparation device, comprising: the polymer pushed out of the central hole is used as a down-like core layer, and the polymer pushed out of the central hole circumferentially distributed in circles forms a down layer of the down-like; the farther away from the through-hole of the central bore, the greater the degree of branching of the polymer it pushes out; the branching component consists of a plurality of branching rings, the diameter of each branching ring and the supplied power supply voltage are gradually increased, and the branching rings can rotate and do not contact with the polymer; and after the polymer forms velvet, drawing the velvet to a cutting device to obtain the down-like feather.

In a preferred embodiment of the present invention, the polymer has nano-sized silica aerogel particles mixed therein.

In a preferred embodiment of the present invention, the concentration of aerogel particles in the polymer in the central hole is less than the concentration of aerogel particles in the polymer in the through hole.

In a preferred embodiment of the present invention, the sidewall of the branched ring is provided with a plurality of needle-like structures, and the direction of the needle-like structures is the same as the direction of the axis of the branched ring.

In a preferred embodiment of the present invention, a plurality of bent structures are disposed on the branched ring, and the directions of the bent structures are collinear.

In a preferred embodiment of the invention, a resistance piece is arranged on the inner cavity pipe wall of the central hole.

In a preferred embodiment of the invention, some of the branching rings in the branching module are not parallel to other branching rings.

In a preferred embodiment of the present invention, the edge shape at the outlet of the through hole is more bent the farther away from the through hole.

In order to achieve the purpose, the invention adopts another technical scheme as follows: a working method of a down-like feather preparation device comprises the following steps:

selecting a proper temperature according to the polymer material at the central hole to ensure that the polymer material has certain toughness, and pushing the polymer at the central hole by adopting injection pressure with certain frequency;

the injector pushes the molten polymer to the branching component area, and the placement angle of the branching ring at the tail end is adjusted according to the branching degree;

and selecting a proper cutting position according to the bending interval of the core layer, the bending degree and the position deviation of the velvet formed by branching.

The invention solves the defects in the background technology, and has the following beneficial effects:

(1) the down-like feather preparation device and the working method thereof are characterized in that the down-like feather manufactured by the down-like feather preparation device is arranged in an inner layer and an outer layer, the inner layer is a core layer with relatively low branching degree, a plurality of small cavities with certain toughness are formed in a plurality of positions in the inner layer, the outer layer is a down layer with relatively high branching degree, the formed small cavities are used for simulating a space structure of down feather of the down feather to lock more air, namely the down feather structure is simulated to obtain the similar heat preservation performance, meanwhile, the adopted materials are all chemical materials and the like, are not influenced by weather or other factors, the density of the materials is low, and the down feather can be replaced to a certain degree.

(2) The hardness of the polymer of inlayer will be greater than outer polymer hardness, carry out the in-process of branching before its cooling, the inside adhesion degree of inlayer is higher relatively, outer nearly branching ring, so the outer branching degree that fine hair layer is relatively higher promptly, the concentration of nanometer silica aerogel granule in the polymer of centre bore department will be less than the aerogel concentration in the polymer in the outside through-hole, in the fixed in-process of branching and cooling in later stage promptly, the aerogel quantity on fine hair layer is used for forming the great chamber of quantity greatly, and replace part air with the aerogel, the aerogel of core layer helps forming the inside cavity of the imitative trunk of eiderdown.

(3) The polymer silk thread is in the rotatory process in cooperation branching ring, and the electrostatic action that receives drags the direction and carries out certain change, and then the silk thread branching in-process of the fine hair that forms, fine hair part have certain crookedness, and the frequency fluctuation of source voltage and electric field intensity is deuterogamied for the crooked direction of fine hair further changes, thereby the imitative eiderdown that generates is from the structure of the actual eiderdown of laminating that can step forward in the structure.

(4) The setting of hindering the piece at the exit of centre bore can make the molten polymer that is pushed out by the syringe have certain radian and have certain perturbation effect to its inside, because the material texture of the polymer of centre bore department is harder than the polymer texture of through-hole department, if powerful disturbance such as not through hindering the piece, can't carry out holistic shock to it, thereby prepare for the core layer of the imitative eiderdown of formation in later stage, in the outside fine hair layer, the edge shape of its exit of through-hole of keeping away from the centre bore more is buckled, the tremble effect of the polymer that is pushed out from this through-hole is the better promptly, then silk thread here gets into after the branching ring, can branch in advance, and through the polymer after the promotion in contacting other through-holes disturb and lure it to branch.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective block diagram of a preferred embodiment of the present invention;

FIG. 2 is a schematic diagram of the structure of the outlet of the injector of the preferred embodiment of the present invention;

FIG. 3 is a comparison of two branched ring structures of a preferred embodiment of the present invention;

in the figure: 1. an injector; 2. a branched ring; 3. a needle-like structure; 4. a resistance member; 5. a central bore; 6. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Fig. 1 shows a detailed structure of a down-like preparation apparatus according to the present invention, and as shown in fig. 1, the down-like preparation apparatus includes: the down-like feather injection device comprises an injector 1, wherein a silk thread is formed by molten polymers pushed by the injector 1, the silk thread penetrates through a branching assembly and is changed into silk down under the electrostatic action of the branching assembly, a central hole 5 is formed in the injector 1, the polymers pushed out of the central hole 5 are used as down-like feather core layers, and the polymers pushed out of through holes 6 distributed circumferentially one by one in the central hole 5 form down-like feather layers; the further away from the through-hole 6 of the central hole 5, the greater the degree of branching of the polymer it pushes out; the branching component consists of a plurality of branching rings 2, the diameter of each branching ring 2 and the supplied power supply voltage are gradually increased, and the branching rings 2 can rotate and are not in contact with the polymer; after the polymer forms the velvet, the velvet is drawn to a cutting device to obtain the down-like feather.

It should be noted that, in the figure, only the outlet area of the injector 1 is shown, the injector 1 and each branched ring 2 are connected to an external high-voltage power supply, so that the polymer pushed out by the injector 1 is charged while the branched rings 2 are ensured to form a strong enough electric field, the voltage value is 15-30kV, a ground wire interface needs to be reserved in the circuit, the molten polymer pushed out by the injector 1 forms a silk thread, the silk thread penetrates through the branched components and becomes velvet under the electrostatic action of the branched components, specifically, a plurality of through holes 6 are arranged at the outlet of the injector 1, wherein the through hole 6 in the central area of the through hole 6 is a central hole 5, the rest through holes 6 are diffused out circle by circle with the central hole 5 as the center, when the arrangement is ensured, the distance between the adjacent through holes 6 is constant, and a resistance member 4 is arranged inside

Each branching module is composed of a plurality of groups of branching rings 2, the specific structure of the branching rings 2 can be shown in FIG. 3, which shows two types of branching according to the tip effect (the tip effect refers to the phenomenon that the surface charge density of the tip part of the branching ring 2 is larger than that of the smooth part on the same charged conductor, the electric field intensity near the tip is stronger, and the branching ring is easy to discharge from the tip to the surrounding air or the adjacent grounding body. under the action of the strong electric field at the tip of the charged conductor, the ions remaining in the air nearby the tip move violently and collide with the air molecules strongly, so that the air molecules are ionized, and a large number of positive and negative ions are generated, and the ions collide with other air molecules under the action of the electric field to ionize the well, and the cycle is carried out, so that the tip discharge is formed), and the charges are concentrated on the needle-shaped structures 3 on the branching rings 2, or the zigzag. The branching ring 2 is primarily used to create an electric field to electrostatically pull the polymer filament being pushed out of the syringe 1. The diameter of the branching rings 2 and the voltage supply to which they are supplied are progressively increased, the volume of the wires being progressively expanded in correspondence of the direction of movement of the wires, and the volume and diameter of the branching rings 2 on the branching assembly being progressively increased in order to ensure that the branching rings 2 do not come into contact with the wires. After the polymer silk threads penetrate through the whole branching assembly and the volume and the diameter of down feather formed are close to those of down feather under the adjustment of voltage or the pushing amount of the injector 1, the down feather at the position is cut and collected, and the down feather imitation manufactured by the method has branches and stems unlike the conventional down feather imitation, so that a certain self-restraint silk can be kept during cutting, and the dissipation degree of the down feather is small. Two kinds of branched rings 2 shown in fig. 3 are both metal rings, which can rotate, and a support for supporting is not shown, in the drawing, the side wall of the branched ring 2 on the left side is provided with a plurality of needle-like structures 3, the direction indicated is the same as the axial direction of the branched ring 2, and charges are mainly concentrated at the needle-like structures 3, so when a filament enters the branched ring 2, the polymer filament in a molten state extends from the surface in cooperation with the rotation of the branched ring 2, and the branches extend under the traction of the needle-like structures 3, the extending direction bends to a certain extent due to the rotation of the branched ring 2, and as the volume of the branched ring 2 is larger, the diameter of fluff on the fluff is smaller, the arrangement of the needle-like structures 3 on the branched ring 2 can be gradually densified, that is, the relatively fine fluff can be pulled. The right side branched ring 2 in fig. 3 is a metal ring, and a plurality of bent structures are arranged on the branched ring 2, and the directions of the bent structures are collinear, specifically, a tooth-shaped edge is formed by bending a plurality of positions on the ring body, and charges are mainly concentrated at the tooth tip, so that the formed effect is similar to that of the needle-shaped structure 3.

In the branching process, a cavity similar to the cavity on the down feather is formed after the down feather is not certain and is formed, so that a large amount of stagnant air is formed, the nanometer-level silica aerogel particles are adopted, the density of the nanometer silica aerogel is 2.6-3.1 times of that of the air, the aerogel particles are mixed into each storage cavity in the injector 1 and are fully mixed with each polymer, in the process that the injector 1 pushes the nanometer silica aerogel particles out and branches the nanometer silica aerogel particles, the surface tension of the polymer silk threads is reduced due to the existence of the aerogel particles, the nanometer silica aerogel particles are more easily pulled by electrostatic action, the distribution amount of the aerogel particles in the core layer (in the central hole 5) and the distribution amount of the aerogel particles in the down feather layer (in each through hole 6) are different, the number of the aerogel particles in the core layer is relatively small, the cavity formation in the core layer is mainly promoted, the aerogel particles in the down feather layer can support the down feather and occupy, i.e. simulating trapped air within the down, the overall quality is relatively less affected in view of its relatively low density.

It will be appreciated that the branching rings 2 at the end of the branching module are not parallel to the other branching rings 2, and since there is a difference in the overall branching degree of the velour due to the influence of multiple factors of the material mixing degree, surface tension and air resistance during the whole branching process, even if the branching rings 2 arranged in parallel by rotation are not good, the relative uniformity of the overall diameter of the velour is ensured by shifting the position and angle of the branching rings 2 at the end of the branching module, i.e. by further branching the circumferentially incompletely branched regions of the velour.

The working method of the down-like feather preparation device comprises the following steps: selecting a proper temperature according to the polymer material at the central hole 5 to ensure that the polymer material has certain toughness, and pushing the polymer at the central hole 5 by adopting injection pressure with certain frequency; the injector 1 pushes the molten polymer to the branching component area, and the placing angle of the branching ring 2 at the tail end is adjusted according to the branching degree; and selecting a proper cutting position according to the bending interval of the core layer, the bending degree and the position deviation of the velvet formed by branching.

The correspondingly generated velvet has an obvious main body and a plurality of branches, and is mainly formed by a polymer extruded from a central hole 5, and the velvet is tough in texture after being cooled, so that the velvet is suitable for being used as a branch part of down-like feather, is extruded at a certain frequency and is matched with a blocking piece 4 at an outlet, and the fluid inside the extruded polymer silk threads is relatively disordered, so that the branches can be generated under the action of static electricity. Although a certain distance exists between each through hole 6 and the central hole 5 of the injector 1, as the injected polymers are in a molten state, the threads of each polymer are relatively close to each other at the moment of extrusion, and are very easy to stick together, in the branching process, the polymer threads of the space ring are mutually strung due to branching, and the polymer threads on different ring layers mutually extend into and are fixed in the branches or threads of other ring layers, so that the disorder degree of the whole velvet is improved. The proper temperature is selected according to the polymer material at the central hole 5 for heating and heat preservation, the temperature in the corresponding branching process is provided for adjusting the solidification in the forming process, and with a frequency of injection pressure to push the polymer at the central hole 5, it is noted that, although the pushing force is not consistent, the continuity of the polymer yarn is still ensured, the difference of the pushing force only causes the thickness of the yarn to be changed, the thicker the part is, the voltage moving to the branching ring 2 is relatively larger, the branching degree of the yarn can be obviously increased, corresponding to the thinner area of the polymer yarn, that is, when the wires in the region move to the branching ring 2, the voltage is relatively small, and in order to achieve the time synchronization of the different force changes and the time synchronization of the voltage changes, the operating frequency of the pushing of the injector 1 and the frequency of the voltage changes need to be synchronously adjusted. Meanwhile, the placing angle of the branching ring 2 at the tail end of the branching assembly is adjusted according to the moving direction of the velvet and the branching degree of each part of the velvet in the same batch, and further branching is carried out on the regions which are not branched or have low branching degree. The method is characterized in that an initial polymer is pushed by an injector 1 to enter a branching assembly area and can enter a cutting device only after being dragged, the branching degree of an initially generated polymer silk thread and the angle of a branching ring 2 and the like are adjusted according to actual conditions, so that the initially generated velvet is not collected and can be dragged to the cutting device manually or mechanically, the cutting device is mainly provided with scissors and an electric control driving mechanism to control the closing and opening of the blades of the scissors, a conveying crawler is arranged between the branching device and the cutting device, the initially generated velvet is taken to the position, and a plurality of clamping plates are arranged on the conveying crawler along the length direction of the conveying crawler and used for clamping the velvet and taking the velvet to the cutting device for cutting. The above-mentioned suitable cutting site, that is, the region with a relatively small degree of fuzz support, can be heated a small amount of time during cutting, and cut under the condition of ensuring that the fuzz is not hot-melted and agglomerated, and the basic unit of the generated down-like has a relatively obvious trunk bone, that is, a polymer at the central hole 5 still retains a certain volume and mass after being branched, and is used as a support framework of the whole basic unit.

In addition, in addition to the arrangement of the branching rings 2 in the horizontal direction as shown in fig. 1 (in the case that there are few polymer threads but the production, branching and moving rates are all fast), the branching assembly may be arranged in the vertical direction, that is, the injection direction of the injector 1 is downward, so that the polymer threads are pulled by the circumferential electrostatic action in the process of being pushed downward, the branching rings 2 are arranged according to the size, the larger the branching ring 2 is closer to the ground, and the smaller the branching is closer to the outlet position of the injector 1, so that the synchronous production of a plurality of velvet can be realized, and the influence of the gravity factor in the batch production is solved to a certain extent.

The invention uses the electrostatic spinning technology for reference, two polymers with different textures of a core layer and a down layer are arranged for branching, the edges of the core layer and the down layer are mutually connected in series to form a tight connection, nano-scale silica aerogel particles are dispersed in the core layer and the down layer in different concentrations, so that the core layer can relatively easily form a certain internal cavity, the aerogel particles can occupy the space between the down hairs and serve as retained air, the branching stretching is carried out at the initial stage when the silk threads enter a branching assembly, the angle of a branching ring 2 at the tail of the branching assembly is adjusted, the branching ring 2 rotates in the whole process, a needle-shaped structure 3 is further arranged on the branching ring 2 for cooperation, and the silk threads can be bent in multiple directions, and the down imitation prepared by the device provided by the invention can simulate the characteristics of down similar in structural strength and structural function, thereby obtaining the characteristics of heat preservation, lightness and thinness.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (9)

1. A down-like preparation device, comprising: an injector that pushes molten polymer forming filaments that pass through the branching assembly and become velour under the electrostatic action of the branching assembly,

the injector is provided with a central hole, the polymer pushed out by the central hole is used as a down-like core layer, and the polymer pushed out by the central hole in the through holes distributed circumferentially one by one forms a down layer of the down-like;

the farther away from the through-hole of the central bore, the greater the degree of branching of the polymer it pushes out;

the branching component consists of a plurality of branching rings, the diameter of each branching ring and the supplied power supply voltage are gradually increased, and the branching rings can rotate and do not contact with the polymer;

and after the polymer forms velvet, drawing the velvet to a cutting device to obtain the down-like feather.

2. The down-like preparation device according to claim 1, wherein: the polymer has incorporated therein nanoscale silica aerogel particles.

3. The down-like preparation device according to claim 2, wherein: the concentration of aerogel particles in the polymer within the central hole is less than the concentration of aerogel particles in the polymer within the through hole.

4. The down-like preparation device according to claim 1, wherein: the side wall of the branching ring is provided with a plurality of needle-shaped structures, and the direction pointed by the needle-shaped structures is the same as the direction pointed by the axis of the branching ring.

5. The down-like preparation device according to claim 1, wherein: and a plurality of bent structures are arranged on the branched ring, and the directions pointed by the bent structures are collinear.

6. The down-like preparation device according to claim 1, wherein: and a resistance piece is arranged on the inner cavity pipe wall of the central hole.

7. The down-like preparation device according to claim 1, wherein: some of the branching rings in the branching assembly are not parallel to other branching rings.

8. The down-like preparation device according to claim 1, wherein: the farther away from the through hole of the center hole, the more flexed the edge shape at the outlet thereof.

9. The working method of the down-like preparation device according to any one of claims 1 to 8, which comprises the following steps:

selecting a proper temperature according to the polymer material at the central hole to ensure that the polymer material has certain toughness, and pushing the polymer at the central hole by adopting injection pressure with certain frequency;

the injector pushes the molten polymer to the branching component area, and the placement angle of the branching ring at the tail end is adjusted according to the branching degree;

and selecting a proper cutting position according to the bending interval of the core layer, the bending degree and the position deviation of the velvet formed by branching.

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