CN-121625575-B - Artificial feather piece, preparation method thereof and artificial badminton

CN121625575BCN 121625575 BCN121625575 BCN 121625575BCN-121625575-B

Abstract

The invention belongs to the technical field of sports goods, and relates to an artificial feather piece, a preparation method thereof and an artificial badminton. The artificial feather comprises an inner feather, an outer feather and a feather rod with one end clamped between the inner and outer feathers, wherein the inner and outer feathers are formed by cutting a hot air non-woven material fiber net made of low-melting-point fibers through carding into a net and reinforcing with hot air, the diameters of the fibers of the inner and outer feathers are different, the average pore diameter of the outer feather is larger than that of the inner feather, and the fiber arrangement directions of the inner and outer feathers are perpendicular to the length direction of the feather rod. The preparation method comprises the steps of clamping one end of a feather rod between two hot air non-woven material fiber webs, and punching and hot-pressing to obtain the artificial feather sheet. The artificial badminton comprises a ball head and 16 artificial feather pieces, and one end of a feather rod far away from the inner feather piece and the outer feather piece is inserted into the ball head. The artificial badminton has obviously improved flying performance and structural reliability.

Inventors

HUANG CHEN
YAN JIAWEI
DENG JIXIA
ZHANG CHANGJIANG
MA KAIHUI
ZHANG FAN

Assignees

东华大学
上海归安体育科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260202

Claims (8)

1. The artificial feather comprises an inner feather, an outer feather and a feather rod with one end clamped between the inner and outer feathers, wherein the inner and outer feathers are formed by cutting a hot air non-woven material fiber net, and the hot air non-woven material fiber net is formed by carding low-melting point fibers into a net and reinforcing the hot air, and the artificial feather is characterized in that the diameters of the fibers in the inner feathers are the same and are marked as d1, the diameters of the fibers in the outer feathers are the same and are marked as d2, the value ranges of d1 and d2 are 12-36 mu m, and d1 is not equal to d2; The sum of the surface densities of the inner pinna and the outer pinna is 90-150 g/m 2 , the total mass of the inner pinna and the outer pinna is 0.0435-0.0720 g, and the average pore diameter of the outer pinna is 3-11 times of the average pore diameter of the inner pinna; the edge areas of the inner pinna and the outer pinna are connected in a hot-press bonding mode, and the arrangement directions of fibers in the inner pinna and the outer pinna are perpendicular to the length direction of the pinna.
2. The artificial feather piece of claim 1, wherein the low-melting-point fiber is a PP/PE bi-component sheath-core composite fiber, the sheath is PE, and the thickness of the sheath is 2-10 μm; The carding and web forming process parameters comprise cotton feeding speed of 0.52-0.74 r/min, tin Lin Zhuaisu-320 r/min, doffer rotating speed of 6.83-7.45 r/min, cluttered rotating speed of 5.64-6.56 r/min and rolling rotating speed of 8.65-12.14 r/min; The hot air reinforcement process parameters comprise that the temperature of hot air is 1.14-1.25 times of the melting point of the skin material of the low-melting-point fiber, and the treatment time of the hot air is 90-120 s.
3. The artificial feather piece according to claim 1, wherein the feather rod is in a spear shape and comprises a spear handle portion and a spear head portion, the spear head portion is used for being inserted into the ball head, the thickness of the feather rod is 0.55-1.08 mm, the width of the spear handle portion increases gradually from one end far away from the spear head portion to one end close to the spear head portion, the minimum width is 0.4-0.6 mm, the maximum width is 1.3-1.5 mm, the length of the spear handle portion is 63-64 mm, the length of the spear head portion is 9-14 mm, and the maximum width of the spear head portion is 2-3.5 mm.
4. An artificial feather piece as claimed in claim 1, wherein the feather bar is composed of two non-woven fabric layers and carbon fiber reinforced resin matrix composite material plate layers sandwiched therebetween; The surface density of the non-woven fabric is 50-100 g/m 2 ; The arrangement direction of carbon fibers in the carbon fiber reinforced resin matrix composite board is parallel to the length direction of the feather rod, the thickness of the carbon fiber reinforced resin matrix composite board is 0.35-0.85 mm, and the surface density is 550-650 g/m 2 ; The non-woven fabric is obtained by carding and needle punching pre-reinforcing low-melting point 4080 fibers, wherein the carding and net forming process parameters comprise cotton feeding speed of 0.52-0.74 r/min, tin Lin Zhuaisu-320 r/min, doffer rotating speed of 6.83-7.45 r/min, messy rotating speed of 5.64-6.56 r/min and lapping rotating speed of 8.65-12.14 r/min, the needle punching pre-reinforcing process parameters comprise needling density of 2250 pieces/m, needling frequency of 160-240 r/min, fiber web output speed of 0.8-1.5 m/min, needling depth of 1-5 mm and stepping amount of 2-6 mm/needle; The carbon fiber reinforced resin matrix composite board is obtained by hot pressing and curing after overlapping two layers of unidirectional carbon fiber prepregs, wherein the thickness of the unidirectional carbon fiber prepregs is 0.2-0.5 mm, and the areal density is 200-300 g/m 2 ; The preparation process of the feather rod comprises the steps of clamping a carbon fiber reinforced resin matrix composite board between two non-woven fabrics for hot-pressing compounding, and cutting to obtain the feather rod, wherein the hot-pressing compounding process comprises the steps of hot-pressing the carbon fiber reinforced resin matrix composite board at a temperature which is 1.45-1.82 times of the melting point of the 4080 fiber leather with a low melting point for 200-300 s and at a pressure of 0.5-2 MPa.
5. A method for preparing the artificial feather sheet according to any one of claims 1 to 4, wherein after one end of a feather rod is clamped between two hot air non-woven material fiber webs, the two hot air non-woven material fiber webs are punched and hot pressed to obtain the artificial feather sheet.
6. The method of claim 5, wherein stamping and hot pressing use a set of dies, the dies comprising an upper die and a lower die; The upper surface of the lower die is a horizontal plane, at least one pair of strip-shaped grooves and annular grooves are formed in the lower die, the annular grooves surround one ends of the strip-shaped grooves in the same pair, the strip-shaped grooves are used for loading feather rods, and the shape and the size of the inner edge of each annular groove are the same as those of the inner feather piece and the outer feather piece; The lower surface of the upper die is provided with a hot pressing cylinder corresponding to each annular groove, the lower end surface of the hot pressing cylinder is a horizontal plane, the orthographic projection of the outer edge of the hot pressing cylinder is completely overlapped with the orthographic projection of the inner edge of the corresponding annular groove, the outer edge of the hot pressing cylinder extends downwards to form a cutting blade, a notch for preventing a feather rod from being cut is arranged on the cutting blade, the height of the cutting blade on the hot pressing cylinder is equal to the depth of the corresponding annular groove, and the thickness of the cutting blade on the hot pressing cylinder is not higher than the width of the corresponding annular groove; The upper die has a heating function.
7. The method of claim 6, wherein the upper surface of the lower die is rectangular, wherein a set of opposite sides are designated as sides a and b, and a direction parallel to sides a and b is designated as direction X; The number of the strip-shaped grooves and the number of the annular grooves are 2n, and n is a positive integer; n pairs of strip-shaped grooves and annular grooves are arranged at intervals along the direction X, one end of each strip-shaped groove, which is not surrounded by the annular groove, is flush with the side a, and n pairs of strip-shaped grooves and annular grooves are arranged at intervals along the direction X, one end of each strip-shaped groove, which is not surrounded by the annular groove, is flush with the side b; Two rocking bars parallel to the direction X are arranged on two sides of the lower die, n connecting rods are vertically fixed on each rocking bar, the rocking bars and the n connecting rods on the rocking bars form a comb-shaped structure, and a clamping opening for clamping the feather bars is formed in the free end of each connecting rod; One rocker is close to the side a, n connecting rods on the rocker are used for placing n feather rods in n strip-shaped grooves, the other rocker is close to the side b, and n connecting rods on the rocker are used for placing n feather rods in the other n strip-shaped grooves.
8. An artificial badminton, which is characterized by comprising a ball head and 16 artificial feather pieces according to any one of claims 1-4, wherein one end of a feather rod of each artificial feather piece far away from an inner feather piece and an outer feather piece is inserted into the ball head.

Description

Artificial feather piece, preparation method thereof and artificial badminton Technical Field The invention belongs to the technical field of sports goods, and relates to an artificial feather piece, a preparation method thereof and an artificial badminton. Background The natural badminton is a mainstream product in the current badminton sports, and the feathers are mainly made of natural goose feathers or duck feathers, by means of a double-sided heterostructure (one side is a compact net-shaped compact surface, the other side is a sparse surface with a tiny tubular gap) formed by symmetrically distributing the feathers along the feathers and embedding the feathers in a hook-shaped structure, the directional regulation and control of air flow can be realized, proper differential pressure resistance is generated by controlling the tail air flow, namely when the air flow transmittance is smaller, an unstable wake flow is easily generated by interaction between the feathers and high-speed air flow on the outer side, the wake flow is accelerated when the air flow transmittance is larger, turbulence is possibly reduced, but tail negative pressure and differential pressure resistance are increased, and the double-sided heterostructure of the natural feather can balance the contradiction, so that the natural badminton has excellent flight track stability and is highly favored by players. However, the natural shuttlecock has extremely high dependence on natural bird feathers, is influenced by the decrease of goose and duck breeding amount in recent years, and the supply of feather raw materials is increasingly tense, so that the production cost of the shuttlecock is directly pushed to continuously rise, and a heavier economic burden is brought to consumers who participate in the badminton in a long term. The early common substitute is an injection molding nylon ball, the injection molding technology is adopted to integrally form the badminton skirt part and insert the badminton skirt part on the ball head, however, the injection molding plastic skirt part is softer and heavier, the rigidity is insufficient, and under the action of huge impact force at the moment of striking and air resistance during high-speed flight, large shrinkage deformation is easy to occur, so that the appearance is changed, the air resistance is reduced, and the flying speed of the nylon ball is higher and the speed attenuation is slower. More importantly, the gravity center of the shuttlecock is deviated from the gravity center range required for stable flight due to the deviated plastic skirt part, so that rolling or shaking occurs in the flight process, and the flight stability is far from that of the natural shuttlecock. Compared with injection molding nylon balls, the carbon sound balls have a certain progress, but the problem of higher flying speed is not solved yet. The feather is made of polyethylene foam materials, the materials are light and small, the beating resistance is limited, obvious damage is easy to occur after beating for many times, the carbon fiber feather rod is good in rigidity and hardness and not easy to bend, potential safety hazards exist, after the foam materials are damaged, the sharp tip of the carbon fiber rod is exposed, and a user can be injured by the shuttlecock flying at a high speed. Patent application CN119868905A discloses an artificial light anti-bending bionic feather piece, a preparation method and application thereof, and the performance of the artificial badminton is optimized through a bionic design and a non-woven material technology. The artificial light bending-resistant bionic feather comprises a first feather, a second feather and a feather rod, wherein the feather is made by carding and net forming by using mixed non-woven raw materials such as PET/PE, reinforcing by hot air, hot rolling and cutting according to the shape of natural goose feather, the feather rod is made by carding, pre-needling, laminating and hot pressing (different area density areas) and cutting by using mixed non-woven raw materials such as PET and the like and low-melting point 4080 fibers, and 16 feather pieces are fixed by glue adhesion and can be detachably arranged on a ball head to form the artificial badminton. The weight balance and the structural stability are optimized by controlling the total weight of the wool sheet by adopting a light non-woven material, improving the rigidity by adopting a feather rod differential area density design, improving the bending resistance by combining hot air reinforcement and hot rolling of the feather sheet, and improving the impact resistance and the use safety by adopting a composite non-woven plate without sharp tips. However, the patent application still has the key defects that the bending rigidity of the feather rod prepared from the composite non-woven plate is limited according to old times, the gap between the feather rod and the natural feather rod is larger, the