129 results about "Down feather" patented technology

A down feather type identification device relates to the field of down feather detection equipment and comprises a base, a transverse moving mechanism, a longitudinal moving mechanism, a down feather mounting mechanism and a microscopic imaging mechanism, and a light source is arranged on the base; the down feather mounting mechanism moves back and forth through the transverse moving mechanism and the longitudinal moving mechanism and comprises a base plate, a transparent plate, a mounting groove and a sealing cover. And the microscopic imaging mechanism is arranged above the down feather mounting mechanism and is opposite to the light source so as to observe the down feathers in the mounting groove. The to-be-identified down and feathers are placed in the mounting grooves and then covered with the sealing covers, the different down and feathers are aligned with the light source through back-and-forth movement and then observed through the microscopic imaging mechanism, the accuracy of the detection result is improved, experimental data can be conveniently reserved for subsequent verification, and due to the fact that the mounting grooves are isolated from one another, the accuracy of the detection result is improved. Therefore, multi-type and multi-batch down feather identification can be carried out at the same time without causing confusion, and the detection efficiency is improved.

The invention relates to the technical field of down feather detection, in particular to a method and system for detecting iron in down feather based on spectral analysis. The method comprises the following steps: pretreating to-be-detected down feather to obtain a to-be-detected down feather sample; performing dual-mode spectrum collaborative excitation on the down feather sample to be detected, and performing signal acquisition to obtain detection data of the down feather sample to be detected; performing background correction operation on the detection data of the down feather sample to be detected to obtain correction data of the down feather sample to be detected; obtaining an iron detection result of the down feather sample to be detected according to the correction data of the down feather sample to be detected; therefore, the iron in the down feather can be accurately detected.

The application discloses a biological enzyme degreasing treatment method for reducing down feather peculiar smell, which comprises the following steps: raw material down feather pre-finishing, pre-wetting, pulse negative pressure penetration, controlled protease pretreatment, lipase deep degreasing, intermittent low-energy ultrasonic assisted migration, warm water rinsing, cyclodextrin inclusion peculiar smell, weak acid recovery, limited fat supplementing and dehydration low-temperature drying. The application discharges the air in the down feather through pulse negative pressure and promotes the treatment liquid to enter the deep layer of the down feather, improves the contact ability of the lipase and the residual lipid through the protease pretreatment, promotes the oil hydrolysis and migration through the lipase and low-energy ultrasonic, and reduces the residual fat and the aftertaste risk through the cyclodextrin inclusion of volatile peculiar smell substances such as fatty acids, aldehydes and ketones, the weak acid recovery and the fat supplementing treatment, reduces the damage of strong alkali washing to the down feather, maintains the down feather fluffiness, softness and fiber integrity, and is suitable for industrial degreasing and peculiar smell removing treatment of the down feather.

The utility model relates to the field of down feather sampling, in particular to a sampling mechanism for down feather detection, which comprises a sleeve, a baffle and a clamping component, the baffle is elastically and rotatably connected to a front end opening of the sleeve, the clamping component comprises a rod body, a grip, a button, a pull rod, a spring, a clamping jaw and a clamping plate, the rod body is slidably arranged in the sleeve, and the grip is arranged in the sleeve. The grip is arranged at the tail end of the rod body, the pull rod is arranged in the rod body in a sliding mode, the lower end of the button is rotationally connected with the grip, the upper end of the button is rotationally connected with the tail end of the pull rod, the pull rod is sleeved with the spring and located in the rod body, and the clamping jaw is rotationally arranged at the front end of the rod body. The clamping plates are fixed to the inner sides of the clamping jaws, the cleanliness of the detection environment is maintained, compared with traditional manual grabbing with bare hands, the clamping jaws cannot adhere to the hands, and the use comfort is improved.

The invention provides a wind power blade surface modification system based on bionic feathers and a pneumatic optimization method thereof.The wind power blade surface modification system comprises bionic feather units, the bionic feather units are arranged on the windward side, the blade tip area or the area from the front edge to the middle of a blade through a flexible substrate adhesion layer, and the bionic feather units passively deflect or actively adjust the form through an intelligent material; each bionic feather unit is provided with a sawtooth-shaped feather edge type structure, a fiber bundle down feather type structure, a fish scale overlapping type feather piece structure, a fan-shaped feather shaft comb-shaped structure or an intelligent response type corrugated feather piece bionic structure. Dynamic pneumatic regulation and control and noise reduction are achieved through modular arrangement of multiple types of bionic feather units in combination with a flexible substrate and an intelligent response coating, and a zigzag feather edge type, a fiber bundle down type, a fish scale overlapping type, a fan-shaped feather axis comb type and an intelligent response corrugated feather piece bionic feather structure are adopted; a flexible substrate is attached to a blade, and form self-adjustment is achieved through a heat / humidity sensitive material; and the feather combination can be customized according to the leaf area function requirements.

The longitudinal down feather scattering device comprises a fixing frame, a box body, a linear guide rail, a box door and a distributing box, a motor drives the scattering device to scatter down feather, meanwhile, the linear guide rail drives a catching net to move in a reciprocating mode, light down feather is fed into the distributing box, efficient and automatic separation of the down feather is achieved, and the working efficiency is improved. The device has the advantages of being simple in structure, convenient to operate, uniform in scattering, good in separation effect and the like, and down feather treatment efficiency and quality can be remarkably improved.

The utility model discloses an automatic cleaning anti -flying down feather filling machine, including storage tank, be equipped with storage cavity in the lower side of storage tank, and the air inlet of gas pump is connected with pipeline through storage cavity, and the exhaust port of gas pump is connected with filling tube through pipeline, and filling tube is installed at the top of storage tank, its characterized in that, the left and right sides of the upper side in storage tank are equipped with recovery cavity and mounting cavity respectively, and the closed door subassembly is equipped between storage cavity and recovery cavity, and the closed door subassembly is used for the communication or partition between storage cavity and recovery cavity, and the inside of recovery cavity can form negative pressure through negative pressure pump, and the down feather that scatters in the air in filling process can enter the inside collection of recovery cavity through air hole, avoids the down feather that scatters in the air and pollutes the air, harms the health of operator's body, and simultaneously through the closed door subassembly can communicate or partition between storage cavity and recovery cavity, and the down feather in the inside of recovery cavity can enter the inside of storage cavity and reuse, avoids the waste of down feather.

The utility model discloses a multifunctional silk down feather composite warm-keeping quilt which comprises a down feather inner layer, two silk outer layers, an all-cotton fabric layer and a traction fluffy stretching structure, the two silk outer layers are located above and below the down feather inner layer respectively, and a partition cavity is formed between the down feather inner layer and the silk outer layers. The two all-cotton fabric layers are located on the outer sides of the two sets of silk outer layers respectively, reset stretching layers are sewn to the edges of the two all-cotton fabric layers, and the traction fluffy stretching structure is located in the composite warm-keeping quilt and composed of a plurality of sets of traction fluffy strips. The multiple sets of traction fluffy strips are evenly distributed in the composite warm-keeping quilt, and each traction fluffy strip comprises an inner elastic gauze element, traction fibers, an outer elastic gauze element and a connecting strip. According to the warm-keeping quilt, traction, stretching and fluffy treatment can be conveniently carried out, and compared with a traditional beating fluffy mode, the operation mode can achieve better fluffy treatment on the warm-keeping quilt.

The invention discloses a method for weighing down-filled cut-parts. The method comprises the following steps: 1) placing a plurality of cut-parts on a first weighing mechanism; 2) weighing the cut pieces on the first weighing mechanism to obtain a count m1; 3) taking one cutting piece, and weighing the cutting piece on the cutting piece by a first weighing mechanism to obtain a count m2; 4) calculating the weight of the cut piece by the controller, and subtracting the count m2 obtained in the step 2) from the count m1 obtained in the step 1) to obtain a count m3; (5) down filling operation is conducted on the weighed cut-parts, and down with the weight of m4 is filled; (6) weighing on a second weighing mechanism to obtain a count m5; (7) the controller judges whether (m3 + m4) is the same as m5 or not, if yes, the weight of the filled down feather is correct, and if not, the weight of the filled down feather is incorrect, and (8) the steps (2)-(7) are adopted, the cut-parts on the first weighing mechanism are weighed in sequence, and whether the down feather filling weight is qualified or not is judged, and on the basis that the working efficiency is guaranteed, accurate weighing of the down feather filling cut-parts is achieved.

The invention provides a rotary drying device for down feather processing, and relates to the technical field of down feather processing equipment. A rotary drying device for down feather processing comprises a processing box and a servo motor, two adjusting lead screws are arranged in the processing box, the rotation directions of threads on the outer surfaces of the two adjusting lead screws are opposite, and the positions of the two adjusting lead screws are distributed in a bilateral symmetry mode relative to the center position of the processing box; the outer surfaces of the two adjusting lead screws are each sleeved with two adjusting bases in a threaded mode. Through the arrangement of adjusting teeth and fixing teeth in a matched mode, transient pause can occur in the rotating process of the discharging barrel, then the scattering effect of the materials is improved, the drying effect can be improved through the arrangement of blowing fan blades in a matched mode, and the drying integrity is ensured.

The invention relates to a down feather heat preservation finishing agent and a preparation method thereof, and belongs to the field of down feather finishing agents, the down feather heat preservation finishing agent is prepared from the following raw materials: a cyclodextrin derivative, functional powder, 2, 2 '-disulfonic acid benzidine and deionized water, the cyclodextrin derivative is obtained by sequentially mixing dimethyl sulfoxide, a ginkgo leaf fermentation product, pullulanase and ethanol into beta-cyclodextrin, then carrying out centrifugal treatment to obtain a precipitate, and finally drying the precipitate. A cyclodextrin derivative contained in the down feather heat-preservation finishing agent is beta-cyclodextrin modified by ginkgo leaf leavening, and the down feather heat-preservation finishing agent further comprises functional powder which is obtained by taking a zirconium diboride precursor solution as a raw material, mixing with mint essential oil and matching with a high-temperature calcination means, so that after the down feather heat-preservation finishing agent is applied to down feather, the heat preservation effect of the down feather is improved; the heat preservation performance of the down feather can be enhanced, and the heat preservation performance of the down feather can be stably maintained for a long time.

The utility model discloses down feather sorting and filtering equipment which comprises a plurality of connecting cylinders and a filter screen located in the connecting cylinders and used for screening down feather, and a cleaning assembly is arranged on the filter screen and used for cleaning the two sides of the filter screen to achieve the anti-blocking effect. The cleaning assembly comprises a rotating shaft rotationally connected to the filter screen in a penetrating mode, and a first support and a second support are sequentially arranged at the positions, located on the two sides of the filter screen, of the rotating shaft; the utility model relates to the technical field of down feather sorting. According to the down feather sorting and filtering equipment, multi-stage sorting and filtering can be conveniently conducted on down feathers by arranging the multiple detachable and separable connecting cylinders and the filter screens in the connecting cylinders, meanwhile, later dismounting and maintenance are easy, and the arranged cleaning assemblies can clean down feathers attached to the two sides of the filter screens; the filter screen is prevented from being blocked, so that the down feather trafficability is poor, operators do not need to frequently disassemble and assemble, and the down feather sorting efficiency is improved.

The invention provides a circulating down feather cleaning system and method, and solves the problems of continuous rinsing and dewatering of down feather, the circulating down feather cleaning system comprises a vertical cleaning cylinder, a cleaning turntable is rotatably mounted at the bottom of the vertical cleaning cylinder, a rotation driving assembly is mounted between the vertical cleaning cylinder and the cleaning turntable, and the top of the vertical cleaning cylinder is connected with a cleaning cage through a lifting assembly. A locking assembly is installed between the cleaning rotary disc and the cleaning cage, and opening and closing assemblies in linkage with the locking assembly are arranged at the upper end and the lower end of the vertical cleaning cylinder. The cleaning device has the advantages of stable structure, good cleaning effect and the like.

The utility model relates to the technical field of down feather processing, in particular to a degreasing device for down feather processing, which comprises a base, the top of the base is fixedly connected with the bottom of a rotating mechanism, degreasing fluid in an outer box body is manually discharged, a rotating motor is started, and the rotating motor rotates to drive a rotating rod to rotate. The rotating rod rotates to drive the transmission rod to rotate through the bevel gear, the transmission rod rotates to drive the transmission gear shaft to rotate through meshing, the transmission gear shaft rotates to drive the gear ring to rotate through meshing, the gear ring rotates to drive the inner box body to rotate, the inner box body rotates to degrease down feather through centrifugal force, and the degreasing efficiency is improved. Meanwhile, a transmission rod rotates to drive a fixed shaft to rotate, the fixed shaft rotates to drive a connecting rod to rotate, the connecting rod rotates to drive a connecting block to rotate, the connecting block rotates to drive a scraper to rotate, the scraper rotates to clean down attached to the inner wall of the inner box body so as to improve the degreasing efficiency, and convenience is brought to people to use the degreasing device for down processing.

The application relates to an antibacterial waterproof down feather and a processing method thereof, in particular to the down feather processing technology field, and the processing method of the antibacterial waterproof down feather comprises the following steps: (1) using a degreasing agent to perform degreasing treatment on the down feather; (2) performing normal-pressure plasma treatment on the down feather subjected to the degreasing treatment in the step (1); (3) mixing the down feather subjected to the normal-pressure plasma treatment in the step (2) with a bacteriostatic finishing emulsion, water and tyrosinase to perform bacteriostatic waterproof finishing, the bacteriostatic finishing emulsion is a phosphatized pea protein emulsion loaded with bacteriostatic essential oil; and (4) performing hot air drying on the down feather subjected to the bacteriostatic waterproof finishing in the step (3) to obtain the antibacterial waterproof down feather. The down feather obtained through the processing method has the advantages of persistent antibacterial property, further improved waterproof performance, good fluffiness and excellent comprehensive performance.

The utility model relates to the technical field of efficient feeding devices, in particular to an efficient feeding device for down feather production, which solves the problems mentioned in the background technology and comprises a feeding pipe, one end of the feeding pipe is provided with a feeding port, and the other end of the feeding pipe is provided with a discharging port. The outer wall of the feeding pipe is fixedly connected with a plurality of layers of fixed boxes which are uniformly distributed and are communicated with the feeding pipe, a plurality of fixed boxes are arranged on each layer of fixed box, an air outlet assembly is mounted on each fixed box, an included angle is formed between the air outlet direction of each air outlet assembly and the feeding pipe, and the air outlet direction of each air outlet assembly faces the discharging opening; the same air inlet assembly is connected between all the air outlet assemblies and the draught fan, the draught fan feeds air into the air outlet assemblies through the air inlet assembly, air outlet holes in the air outlet assemblies face the discharging port, and down feather entering the feeding pipe is pushed by the air to move towards the discharging port and then enters the feeding end of the conveying device. The feeding pipe 1 is prevented from being blocked by down feather, connection operation is achieved, and working efficiency is improved.

The utility model provides a discharge port structure provided with down feather equipment, which comprises a discharge pipe orifice end of the down feather equipment, a material passing equipment connecting end arranged at the lower part of the discharge pipe orifice end, a blanking bin structure connected with the material passing equipment connecting end, and a bagging port structure arranged at the lower part of the blanking bin structure, the material passing equipment connecting end comprises a feeding butt joint sleeve connected with the discharging pipe opening end and a material passing video detection station arranged in the feeding butt joint sleeve, and the discharging bin structure comprises an external connection fixing sleeve connected with the feeding butt joint sleeve and an automatic material stopping valve body arranged in the external connection fixing sleeve. The discharging port structure is simple in structure and convenient to use, and down feather is not prone to flying when the bag body is precisely attached to the filling port end. According to the structure, video monitoring can be carried out on the down feather stacking and outputting condition, and the automatic material intercepting valve body and the electronic scale body are matched; and when the weight of the device reaches a certain value, feeding output is automatically stopped, intelligent matching is achieved, and the situation of material leakage and flying is further reduced.

The utility model relates to the technical field of down feather processing, and discloses closed down feather degreasing equipment which comprises a degreasing box, a water injection pipe is fixedly connected to the outer wall of the degreasing box, a water drainage pipe is fixedly connected to the outer wall of the degreasing box, an electronic valve is arranged on the top of the water drainage pipe, and a motor is fixedly connected to the interior of the degreasing box. The output end of the motor is fixedly connected with a roller, and a mixing assembly is arranged in the roller; and the mixing assembly comprises a fixing column and a roller, the fixing column is fixedly connected to the interior of the roller, the roller is rotationally connected to the outer wall of the fixing column, and a fixing frame is fixedly connected to the top of the degreasing box. According to the down feather degreasing device, the roller rotates in the roller through rotation of the roller, so that the effect of mixing a degreasing agent, water and down feather is achieved, the problem that the surface of the down feather is damaged due to mixing of a traditional stirring roller is solved, and the down feather protection performance of the degreasing device and the stability of the degreasing quality are improved.

The utility model belongs to the technical field of down feather processing, and discloses a feeding structure of a down feather cleaning machine, which comprises a processing box, a rotating shaft I, a rotating shaft II, a material lifting barrel and a material conveying pipe, the processing box is arranged on a support, a feeding pipe and an impurity discharging pipe are respectively arranged at the bottom of the processing box, a driving structure is arranged at the bottom of the processing box, and the driving structure is connected with the rotating shaft II. The bottom end of the first rotating shaft vertically penetrates through the fixing ring, a stirring rod is arranged on the portion, above the filter plate, of the first rotating shaft, the bottom end of the second rotating shaft vertically penetrates through the fixing ring, a material pushing plate of a spiral structure is arranged on the portion, above the filter plate, of the second rotating shaft, and the bottom end of the material lifting barrel extends into the treatment box. The first rotating shaft drives the brush rod to rotate in the rotating process, so that the brush rod can sweep impurities at the bottom in the treatment box, the impurities can be swept into the impurity discharging groove conveniently, the impurities are prevented from being adsorbed on down feather again, the impurity removing effect of the down feather is improved, and cleaning treatment of the down feather is facilitated.

The application discloses a double-pipe device of a feather separator, which comprises a feather separator box body and a plurality of fixed partitions, a plurality of boxes with narrow-to-wide spaces are formed between the feather separator box body and the plurality of fixed partitions, a movable partition is arranged in the middle of each box, a feather storage box is arranged at the bottom of each box, a separation assembly is arranged between each feather storage box in the middle and a corresponding box, a moving slide rod reciprocally moves in two limiting tracks, after the moving slide rod pulls out a blocking net, the moving slide rod is fixed to the movable partition through the adsorption of a magnetic block and the movable partition, and the down feather is blocked by the blocking net and falls back into the feather storage box. The separation assembly can block the down feather, avoids the down feather from entering the subsequent feather storage box, thereby screening the down feather of different sources, the down feather cannot continue to run in the entire feather separator box body along the air duct, and thus the down feather cannot form residues in the feather compartment.

The utility model discloses a down jacket processing device which comprises a down filling pipe installed on the front side of an automatic down filling machine body, a folding workbench assembly is arranged at the bottom of the down filling pipe and fixedly installed on the front side of the automatic down filling machine body, and a down collecting box is fixedly installed in an inner cavity of the automatic down filling machine body. And a down feather recycling box is fixedly installed on the left side of the down feather collecting box, fan blades are rotationally connected to an inner cavity of the down feather recycling box through a rotating shaft, and the distance between the bottoms of the fan blades and the bottom of the inner cavity of the down feather recycling box is 20-30 cm. Recycled down feather is conveyed to an inner cavity of the down feather recycling box through the retractable pipe, then the fan blades are rotated to drive the down feather to float, and then the floating down feather penetrates through the surface of the filtering inserting plate to be collected into an inner cavity of the down feather collecting box through air suction of the second air suction pipe. At the moment, the broken cloth is intensively collected at the bottom of the inner cavity of the down feather recycling box due to large gravity, so that the purpose of removing impurities from the down feather and recycling the down feather can be achieved.

The invention relates to a finishing agent for improving washing resistance of down and a preparation method thereof, and relates to the technical field of finishing agent preparation, the finishing agent comprises, by weight, 40-50 parts of polyurethane resin, 20-30 parts of epoxy resin, 1-2 parts of a cross-linking agent, 3-6 parts of bovine bone glue, 3-6 parts of konjac glucomannan and 10-15 parts of deionized water; the bovine bone glue is obtained by mixing common bovine bone glue and chitosan; the konjac glucomannan is obtained by catalyzing common konjac glucomannan through pectinase. According to the finishing agent, by adding the bovine bone glue and the konjac glucomannan, the washing resistance of down feather can be remarkably improved, the adhesive force of the finishing agent on the down feather is improved, the stability and durability of the down feather in the washing process are enhanced, meanwhile, the bovine bone glue and the konjac glucomannan are both natural products, and environmental pollution in the production process of the finishing agent can be reduced; the water resistance and the stain resistance of the down feather are improved.

The invention provides bionic artificial down feather and a preparation method thereof. The bionic artificial down feather comprises a plurality of bionic artificial down flowers, and each bionic artificial down flower comprises a down core and a plurality of artificial feather branches; the velvet core is bonded with the middle parts of all the artificial feather branches, and the two ends of each artificial feather branch are radially dispersed towards the direction far away from the velvet core; each artificial feather branch comprises a first feather branch and a second feather branch which are mutually twisted, and a plurality of pieces of short fluff; the middle of the short fluff is clamped and bonded by the first feather branch and the second feather branch, and the two ends of the short fluff are spirally curled under the twisting effect and are radiated and dispersed in the direction away from the artificial feather branch, so that an upright or upright-like fluffy structure is formed. Therefore, according to the bionic artificial down, through the natural goose down imitating structural design, the warm keeping performance, the fluffy performance and the structural stability of the bionic artificial down are remarkably improved.

The utility model provides a quantitative and automatic down filling device, and relates to the field of down filling equipment. Comprising a cotton filling box and an electronic scale, a cotton placing plate is fixedly connected into the cotton filling box, a receiving groove is formed in the side face of the cotton placing plate, a sliding groove is formed in the position, corresponding to the receiving groove, of one side of each portion of the cotton filling box, and an adjusting assembly used for opening or closing a down feather falling opening in one side of the cotton placing plate is arranged in each sliding groove. According to the quantitative and automatic down feather filling device, the adjusting assembly leaves the receiving groove, so that the adjusting assembly slowly opens the down feather falling opening in one side of the cotton plate; a second electric telescopic rod is started to enable the telescopic end of the second electric telescopic rod to drive a push plate to slowly push down feather on a cotton placing plate to a down feather falling opening to fall onto an electronic scale at the bottom of a cotton filling box to be weighed, a proper amount of down feather falls into the down feather falling opening, the down feather enters a receiving groove through an adjusting assembly, and the down feather falling opening is closed; and the down feather can be quantitatively filled without manual weighing in advance by a worker, so that the down feather filling efficiency is improved.

The invention discloses a light and thin down feather quilt and a down feather filling structure thereof in the technical field of down feather filling equipment, the light and thin down feather quilt comprises a down feather quilt body, the down feather quilt body comprises a plurality of filling cavities, down feather filling ports used for being communicated with the filling cavities are formed in the down feather quilt body, and exhaust ports are formed in the filling cavities; according to the down quilt, air in the filling cavity is exhausted through the exhaust port formed in the down quilt body, air resistance in the filling cavity is eliminated, no residual air exists in the filling cavity, down filling is not affected, the supporting assembly is arranged on the down filling pipe to support and open the down filling opening, the situation that the down filling opening collapses and is closed due to the fact that fabric is soft or pressed is avoided, and the service life of the down quilt is prolonged. The stability and the reliability of the exhaust efficiency are greatly improved, the gas exhaust process is smoother and more controllable, and the dependence on manual auxiliary exhaust in down filling operation is reduced.

The utility model relates to the field of down feather product processing, and discloses a cleaning mechanism of a feather separating machine, which comprises moving units symmetrically arranged on two sides of a screen of the feather separating machine, each moving unit comprises a moving part and an abutting part, a clamping cavity for clamping the screen is formed between the moving part and the abutting part, a plurality of driving rollers are rotatably connected in the moving part, and the driving rollers are rotatably connected with the moving parts. The driving roller is located in the clamping cavity, the opposite sides of the two abutting pieces are fixedly connected with mounting plates, and guide grooves used for binding the adhesive tape are formed in the mounting plates; according to the cleaning device, the guide groove in the mounting plate is connected with the adhesive tape, the moving part and the abutting part abut against the screen of the wool separating machine, so that the cleaning device is mounted on the two sides of the screen of the wool separating machine, then the driving roller rotates, the cleaning device moves along the screen of the wool separating machine, the adhesive tape scrapes the screen of the wool separating machine, and the cleaning of the screen of the wool separating machine is achieved. An operator does not need to clean the screens in the hair separator one by one by using tools such as a brush and a blower, and the cleaning efficiency is improved.

The invention relates to the technical field of down feather performance detection, and provides a washing resistance detection method and device for down feather warm-keeping effect, and the device comprises a determination box and a fan assembly which is arranged on one side of the determination box and is used for generating transverse airflow; a plurality of grading areas used for collecting down feathers with different filling power grades are arranged in the measuring box in the transverse airflow direction, and weighing assemblies are arranged in the grading areas; the fan assembly generates transverse airflow with set strength so as to carry out winnowing measurement on down feather, the weighing assembly weighs the down feather collected in the corresponding grading area so as to obtain the proportion of the down feather with different filling power grades before washing, and bending and breakage caused to the down feather in the washing process directly affect the winnowing measurement result. By measuring the proportion change of the down feathers with different filling power grades before and after the down feathers are washed, the washing resistance of the down feather warm-keeping effect can be accurately and reliably reflected.

The invention belongs to the field of down feather, and particularly relates to a waterproof treatment method for down feather, which comprises the following steps: a) washing, drying and screening down feather, and standing in a constant-temperature and constant-humidity environment to obtain down feather meeting the water content requirement; b) arranging a waterproof layer on the surface of the down feather treated in the step a) to obtain the down feather subjected to waterproof treatment; in the step b), the waterproof layer is arranged in a manner of coating drying and / or vapor deposition; a coating solution used for coating and drying comprises the following components: a fluoride-free waterproof agent, a cross-linking agent, a surfactant and water; a precursor material used in vapor deposition is a volatile fluoride-free hydrophobic material. The environment-friendly fluoride-free waterproof agent is adopted for treating the down feather material, and the moisture resistance of the down jacket is enhanced on the premise that the filling power of the down feather is not obviously damaged.

The utility model relates to a pillow core with adjustable thickness, which belongs to the technical field of bedding articles and comprises a pillow, a pillow core main body is placed in the pillow and comprises an upper down feather layer, a lower milk down feather layer and a middle particle layer, and the upper down feather layer is arranged at the top end of the inner wall of the pillow core main body. The lower breast down feather layer is arranged at the bottom end of the inner wall of the pillow inner body. The pillow has the advantages that the thickness of the pillow can be adjusted by the aid of the detachable middle particle layer, individual requirements of different users on the thickness of the pillow are met, the middle particle layer can be detached and mounted more conveniently by the aid of quick connectors such as zippers or hook-and-loop fasteners, adjusting efficiency is improved, and the pillow can be applied to different users. And a plurality of independent small bags are arranged in the middle particle layer and are filled with particles of different quantities, so that a finer thickness adjusting function is realized, and the adjusting precision and range are improved.

The utility model relates to the technical field of down feather recovery devices, in particular to a down feather recovery device with a double filtering structure, which comprises a base, the inner wall of the base is rotatably connected with the outer wall of a rotating mechanism, a rotating motor rotates to drive a rotating rod to rotate, and the rotating rod rotates to drive rotating fan blades and a ventilation plate to rotate. The ventilation plate rotates to drive the stirring assembly to rotate, the stirring assembly rotates to stir down feather and cloth, light down feather is blown through the cloth screening plate to be screened out through rotating fan blades, a transmission rod rotates to drive a steering rod to rotate, the steering rod rotates to drive a cleaning rotating rod to rotate, and the cleaning rotating rod rotates to drive a rotating column to rotate. The rotating column rotates to drive the vibration base plate to circularly move, the vibration base plate circularly knocks the dust sieve plate through the inclined face of the vibration inclined block to generate vibration, dust on the surface of down feather is shaken off, the down feather can be completely and cleanly screened into the collecting box through double filtration of the cloth sieve plate and the dust sieve plate, and convenience is brought to people to use the down feather recycling device.