Pretreatment process of duck down for filling down jackets

Abstract

The invention relates to the technical field of duck down pretreatment processes, in particular to a duck down pretreatment process for down jacket filling. The problem that duck down obtained through down separation in the prior art is low in quality is solved, and the practicability of equipment is improved. The screening machine comprises a fixing frame, a box body is fixed to the fixing frame, a conveying pipe is fixed to one side of the box body, an air inlet pipe and an air outlet pipe are arranged on the other side of the box body, an air pump is connected to the air inlet pipe, a filter screen is fixed to the air outlet pipe, a large down outlet and a small down outlet are formed in the bottom of the box body, a screen drum is fixed in the box body, and a small down cavity is formed between the screen drum and the inner wall of the box body. The small down feather cavity is communicated with the small down feather outlet, the screen drum is communicated with the large down feather outlet, an air blowing pipe is arranged in the screen drum, and the air blowing pipe is connected with the air inlet pipe. The design that in the prior art, down feather is directly stirred through a stirring rod is replaced, damage to the down feather caused by stirring of the stirring rod is reduced, the quality of the down feather obtained after down feather separation is improved, and high practicability is achieved.

Description

Technical Field

[0001] This invention relates to the field of duck down pretreatment technology, specifically to a duck down pretreatment process for down filling in down jackets. Background Technology

[0002] The process of duck down pretreatment involves a series of steps such as washing, degreasing, cleaning, and disinfecting the duck down. The purpose is to achieve the best use effect of the down and ensure that the down jacket has higher quality and performance, thus giving the down jacket a long-lasting user experience.

[0003] In order to ensure the quality of duck down and reduce the impurities it contains, existing technology involves introducing the duck down into a down screening machine, where it is filtered by a stirring rod and a sieve cylinder to separate small down clusters from coarse down.

[0004] While this method can separate the down, the following problems still exist: the stirring rod may collide with and damage the down, affecting its quality. Summary of the Invention

[0005] This invention proposes a pretreatment process for duck down used in down jacket fillings, which solves the problem of low quality duck down obtained from down separation in the prior art and improves the practicality of the equipment.

[0006] The technical solution of the present invention is as follows: Pretreatment process for duck down filling in down jackets S1: Place the duck down raw material into a vibrating screen and separate the duck down from impurities through mechanical vibration; S2: Immerse the duck down obtained in S1 in warm water at 30℃-40℃, add neutral detergent for cleaning, and then place the cleaned duck down in ultraviolet light with a wavelength range of 200nm~280nm for 30 minutes to 1 hour for disinfection. S3: Place the duck down obtained in S2 into a dryer, adjust the drying temperature to 40℃~50℃ and dry for 1.5~3 hours. Then place the duck down in front of a hair dryer 20~30 cm away, adjust the wind speed to 30~40km / h and blow continuously for 10~15 minutes. S4: Place the duck down obtained in S3 into a sieving machine to separate small down clusters from large down clusters; S5: Add deodorizing agent and aroma agent to the duck down obtained in S4, then compress and package the duck down to complete the pretreatment of the duck down.

[0007] Furthermore, the screening machine includes a fixed frame. A box is fixed on the fixed frame. A conveying pipe is fixed on one side of the box. An air inlet pipe and an air outlet pipe are provided on the other side of the box. An air pump is connected to the air inlet pipe. A filter screen is fixed on the air outlet pipe. A large-pile outlet and a small-pile outlet are provided at the bottom of the box. A sieve cylinder is fixed inside the box. A small-pile cavity is provided between the sieve cylinder and the inner wall of the box. The small-pile cavity is connected to the small-pile outlet. The sieve cylinder is connected to the large-pile outlet. An air blowing pipe is provided inside the sieve cylinder. The air blowing pipe is connected to the air inlet pipe.

[0008] Furthermore, a motor housing is provided near the air inlet pipe side of the housing, a first drive motor is fixed inside the motor housing, a first gear is fixed on the air blowing pipe, the air blowing pipe is rotatably connected to the housing, a second gear is rotatably connected inside the motor housing, the first gear and the second gear mesh, and the output shaft of the first drive motor is fixedly connected to the second gear.

[0009] Furthermore, a first rotating component is fixed near the end of the air blowing pipe, and a second rotating component is provided near the end of the air intake pipe. The second rotating component has a first rotating groove inside, and the first rotating component is rotatably connected to the first rotating groove. A sealing component is also provided on the second rotating component, and the sealing component is rotatably connected to the air intake pipe. The sealing component and the second rotating component are fixed by bolts.

[0010] Furthermore, the side wall of the air blowing pipe is provided with a plurality of exhaust pipes, each of which points to the central axis of the air blowing pipe and is provided with a plurality of exhaust holes.

[0011] Furthermore, a spiral blade is rotatably connected inside the conveying pipe, and a second drive motor is fixed on the conveying pipe, with the output shaft of the second drive motor fixedly connected to the spiral blade.

[0012] Furthermore, the feeding pipe is provided with a feeding hopper, and a sealing cover is rotatably connected to the feeding hopper. A first locking member is provided on the side of the feeding hopper near the sealing cover, and a second locking member is provided on the side of the sealing cover near the feeding hopper.

[0013] Furthermore, the first locking member is provided with a second rotating groove, and a first locking block is rotatably connected in the second rotating groove. Both the first and second locking members are semi-circular structures. The second locking member is provided with a third rotating groove, and a second locking block is rotatably connected in the third rotating groove. There is a gap between the first and second locking members. A first adjusting groove is provided on the side wall of the second rotating groove. A first adjusting block is fixed on the first locking block and is slidably connected to the first adjusting groove. A second adjusting groove is provided on the side wall of the third rotating groove. A second adjusting block is fixed on the second locking block and is slidably connected to the second adjusting groove.

[0014] Furthermore, the large-pile outlet is provided with a first collecting hopper, and the small-pile outlet is provided with a second collecting hopper, both of which are frustum-shaped structures.

[0015] Furthermore, both the bottom of the first hopper and the bottom of the second hopper are connected to exhaust fans, and the lower end of the sealing cover is provided with a sealing layer, which is made of rubber material.

[0016] The working principle and beneficial effects of this invention are as follows: The working process of this embodiment is as follows: First, rotate the first adjusting block and the second adjusting block so that both the first locking block and the second locking block are far away from the gap between the first locking member and the second locking member. At this time, the sealing cover can be opened, and the duck down to be processed can be placed in. Then, close the sealing cover, and start the second drive motor. The down is guided into the sieve cylinder inside the box by the spiral blade. Start the air pump and the first drive motor. At this time, the air blowing pipe drives the exhaust pipe to rotate, realizing airflow agitation of the down inside the box. After agitation is completed, first close the air outlet pipe and the air pump, and turn on the exhaust fans on the first and second collection hoppers to collect large and small down clusters.

[0017] This invention features a box mounted on a fixed frame, a sieve cylinder inside the box, and an air blowing pipe inside the sieve cylinder. In this embodiment, an air pump controls the air blowing pipe to blow air into the sieve cylinder, causing the down inside the sieve cylinder to stir. This invention replaces the existing design that directly stirs the down with a stirring rod, reducing the damage to the down caused by the stirring rod and improving the quality of the down after separation. It has strong practicality. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the existing technology; Figure 2 This is a schematic diagram of the overall structure of this embodiment. Figure 1 ; Figure 3 This is a schematic diagram of the overall structure of this embodiment. Figure 2 ; Figure 4 This is a schematic diagram of the internal structure of the box in this embodiment; Figure 5 This is a schematic diagram of the internal structure of the motor housing in this embodiment; Figure 6 This is a schematic diagram of the connection structure between the first rotating component and the second rotating component in this embodiment; Figure 7 This is a schematic diagram of the internal structure of the first and second locking components in this embodiment; Figure 8This is a schematic diagram of the feed hopper in this embodiment; Figure 9 This is a schematic diagram of the internal structure of the air outlet pipe in this embodiment.

[0020] In the picture: 1. Housing; 11. Large fluff outlet; 111. First hopper; 12. Small fluff outlet; 121. Second hopper; 13. Air outlet pipe; 131. Filter screen; 14. Air inlet pipe; 141. Second rotating component; 142. First rotating groove; 143. Sealing component; 15. Small fluff cavity; 2. Fixing frame; 3. Air pump; 4. Exhaust fan; 5. Conveying pipe; 6. Feed hopper; 61. Sealing cover; 611. Sealing layer; 62. First locking component; 621. Second rotating groove; 622. First adjusting groove; 623. First locking block; 624. First adjusting block; 63. Second locking element; 631. Third rotating groove; 632. Second adjusting groove; 633. Second locking block; 634. Second adjusting block; 64. Spiral blade; 641. Second drive motor; 7. Air blowing pipe; 71. Exhaust pipe; 711. Exhaust hole; 72. First rotating element; 8. Screen cylinder; 91. First gear; 92. Second gear; 921. First drive motor; 93. Motor housing. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 2-9 As shown in the figure, this embodiment proposes a pretreatment process for duck down used in down jacket filling: S1: Place the raw duck down into a vibrating screen, where mechanical vibration separates the down from impurities. The vibrating screen effectively removes impurities (such as feathers, small particles, and dust) from the down, ensuring higher purity. This results in not only better quality down but also superior warmth retention.

[0023] S2: Immerse the duck down obtained in S1 in warm water at 30℃-40℃, add a neutral detergent for washing, and then place the washed duck down in ultraviolet light with a wavelength range of 200nm~280nm for 30 minutes to 1 hour for disinfection. Immersing the duck down in warm water at 30℃-40℃ helps soften dust, grease, stains, and other impurities attached to the down. The temperature range of warm water is generally suitable and will not damage the down fibers, while effectively removing floating dust and other soluble dirt. Ultraviolet light disinfects by destroying the DNA or RNA of microorganisms, preventing their reproduction and ensuring that the duck down is more hygienic and sterile.

[0024] S3: Place the down obtained in S2 into a dryer, adjust the drying temperature to 40℃~50℃ and dry for 1.5~3 hours. Then, place the down in front of a hair dryer 20~30 cm away, adjust the air speed to 30~40 km / h, and blow continuously for 10~15 minutes. Drying in a dryer helps remove moisture and dampness from the down, preventing clumping and dampness. Appropriate temperature will not damage the down fiber structure, maintaining its fluffiness and restoring its original softness and elasticity. Blowing with a hair dryer after drying helps the down to fluff more evenly, further removing residual moisture and ensuring the down is even fluffier, maintaining its excellent warmth and elasticity.

[0025] S4: The duck down obtained in S3 is placed into a sieving machine to separate small down clusters from large down clusters. Small down clusters refer to some smaller, shorter, and loosely structured parts of the down feathers. Although they have high loft and warmth, they are more easily broken and deformed, and may contain more impurities, leading to them being considered low-quality components in quality control. By separating small and large down clusters through the sieving machine, the remaining down feathers are more uniform and intact, improving loft and warmth.

[0026] S5: Deodorizers and fragrance agents are added to the duck down obtained in S4, followed by compression and packaging to complete the pretreatment of the duck down. Deodorizing and fragrance treatment of the duck down effectively improves its odor, enhances comfort, increases market appeal, and helps maintain the cleanliness, hygiene, and long-term maintenance of the down. These treatments not only meet consumer demands for product quality but also enhance the overall value and competitiveness of down products.

[0027] The sieving machine in this embodiment includes a fixed frame 2. The housing 1 is fixedly mounted on the fixed frame 2, and the conveying pipe 5 is fixedly mounted on one side of the housing 1 to transport down into the housing 1. An air inlet pipe 14 and an air outlet pipe 13 are located on the other side of the housing 1. An air pump 3 is connected to the air inlet pipe 14 to provide power for stirring the down, allowing for more uniform down separation. A filter screen 131 is fixedly mounted on the air outlet pipe 13 to prevent down from escaping from the housing 1 through the air outlet pipe 13. Large down cluster outlet 11 and small down cluster outlet 12 are located at the bottom of the housing 1. A sieve cylinder 8 is fixedly mounted inside the housing 1 to separate large and small down clusters within the down. A small down cluster cavity 15 is located between the sieve cylinder 8 and the inner wall of the housing 1. The small down cluster cavity 15 communicates with the small down cluster outlet 12, and the sieve cylinder 8 communicates with the large down cluster outlet 11. An air blowing pipe 7 is located inside the sieve cylinder 8 and is connected to the air inlet pipe 14. In this embodiment, air pump 3 is used to blow air to stir the down, which replaces the damage caused by traditional stirring and improves the quality of the down after separation.

[0028] In this embodiment, the motor housing 93 is located on the side of the housing 1 near the air inlet pipe 14 to reduce the impact of dust from the external environment and down inside the housing 1 on the operation of the first drive motor 921. The first drive motor 921 is fixedly installed inside the motor housing 93, the first gear 91 is fixedly installed on the air blowing pipe 7, and the air blowing pipe 7 is rotatably connected to the housing 1. The second gear 92 is rotatably installed inside the motor housing 93, and the first gear 91 and the second gear 92 mesh. The output shaft of the first drive motor 921 is fixedly connected to the second gear 92. In this embodiment, the first drive motor 921 drives the air blowing pipe 7 to rotate, causing the air blowing pipe 7 to rotate and exhaust air through the exhaust port 711, making the down inside the housing 1 more evenly agitated.

[0029] In this embodiment, the first rotating component 72 is fixedly disposed at the end of the air blowing pipe 7 near the air inlet pipe 14, and the second rotating component 141 is disposed at the end of the air inlet pipe 14 near the air blowing pipe 7. The first rotating groove 142 is disposed within the second rotating component 141, and the first rotating component 72 is rotatably connected to the first rotating groove 142. A sealing component 143 is disposed on the second rotating component 141 to prevent the first rotating component 72 from detaching from the first rotating groove 142. The sealing component 143 is rotatably connected to the air inlet pipe 14, and the sealing component 143 is fixedly connected to the second rotating component 141 by bolts. This design ensures that the air pump 3 can blow air into the box 1 through the air blowing pipe 7 while allowing the air blowing pipe 7 to rotate, ensuring that the down in the box 1 is fully agitated and that the down in the box 1 is separated more thoroughly.

[0030] In this embodiment, several exhaust pipes 71 are disposed on the side wall of the air blowing pipe 7, and each exhaust pipe 71 points to the central axis of the air blowing pipe 7. Several exhaust holes 711 are disposed on the exhaust pipes 71. In this embodiment, air can be supplied to the exhaust pipes 71 through the air blowing pipes 7. This design expands the exhaust range inside the box 1, making the down inside the box 1 more evenly agitated.

[0031] In this embodiment, the spiral blade 64 is rotatably disposed inside the conveying pipe 5, and the second drive motor 641 is fixedly disposed on the conveying pipe 5. The output shaft of the second drive motor 641 is fixedly connected to the spiral blade 64. In this embodiment, the spiral blade 64 is used to supplement the material conveying to the box 1, so that the down delivered to the box 1 is more even and there is no material accumulation.

[0032] In this embodiment, the feed hopper 6 is mounted on the conveying pipe 5, the sealing cover 61 is rotatably mounted on the feed hopper 6, the first locking member 62 is mounted on the side of the feed hopper 6 near the sealing cover 61, and the second locking member 63 is mounted on the side of the sealing cover 61 near the feed hopper 6. This embodiment, through the first locking member 62 and the second locking member 63, ensures both the replenishment of material into the box 1 and the maintenance of the box 1's airtightness during the sieving process, preventing down leakage.

[0033] In this embodiment, the second rotating groove 621 is disposed on the first locking member 62, and the first locking block 623 is rotatably disposed within the second rotating groove 621. Both the first locking member 62 and the second locking member 63 have a semi-circular structure. The third rotating groove 631 is disposed within the second locking member 63, and the second locking block 633 is rotatably connected within the third rotating groove 631. A gap is provided between the first locking member 62 and the second locking member 63. The first adjusting groove 622 is disposed on the side wall of the second rotating groove 621, and the first adjusting block 624 is fixedly disposed on the first locking block 623. The first adjusting block 624 is slidably connected to the first adjusting groove 622. The second adjusting groove 632 is fixedly disposed on the side wall of the third rotating groove 631, and the second adjusting block 634 is fixedly disposed on the second locking block 633. The second adjusting block 634 is slidably connected to the second adjusting groove 632. When the first adjusting block 624 and the second adjusting block 634 control the first locking block 623 and the second locking block 633 to rotate to the gap between the first locking member 62 and the second locking member 63, the sealing cover 61 is restricted by the first locking block 623 and the second locking block 633, and the sealing cover 61 remains sealed relative to the feed hopper 6 to prevent the down from flowing out during the screening process.

[0034] In this embodiment, the first collecting hopper 111 is located at the large down cluster outlet 11, and the second collecting hopper 121 is located at the small down cluster outlet 12. Both the first collecting hopper 111 and the second collecting hopper 121 are frustum-shaped structures. This design of the first collecting hopper 111 and the second collecting hopper 121 allows for the collection and concentration of down, facilitating down collection.

[0035] In this embodiment, both the bottom of the first hopper 111 and the bottom of the second hopper 121 are connected to exhaust fans 4. In this embodiment, a regulating valve can be installed on the air outlet pipe 13 to control whether air is emitted from the air outlet pipe 13. When down separation is required, the air pump 3 and the regulating valve are turned on, and the air blowing pipe 7 blows air into the box 1, accelerating the airflow inside the box 1 and causing the down to be stirred and separated more quickly. When down separation is complete, and it is necessary to turn on the exhaust pump to separate the large and small down clusters inside the box 1, the regulating valve is closed to ensure the box 1 is sealed, making the extraction of large and small down clusters more thorough. A sealing layer 611 is located at the lower end of the sealing cover 61. The sealing layer 611 is made of rubber material and is used to increase the sealing performance of the sealing cover 61. In this embodiment, the exhaust fan 4 extracts the down from the box 1, reducing down residue inside the box 1.

[0036] The working process of this embodiment is as follows: First, rotate the first adjusting block 624 and the second adjusting block 634 so that the first locking block 623 and the second locking block 633 are both far away from the gap between the first locking member 62 and the second locking member 63. At this time, the sealing cover 61 can be opened, and the duck down to be processed can be placed in. Then, the sealing cover 61 is closed, and the second drive motor 641 is started. The duck down is guided into the sieve cylinder 8 inside the box 1 through the spiral blade 64. The air pump 3 and the first drive motor 921 are started. At this time, the air blowing pipe 7 drives the exhaust pipe 71 to rotate, thereby realizing airflow agitation of the duck down in the box 1. After agitation is completed, first close the air outlet pipe 13 and the air pump 3, and turn on the exhaust fan 4 on the first collection hopper 111 and the second collection hopper 121 to collect large and small down clusters.

[0037] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A process for pretreating duck down for filling down jackets, characterized in that: S1: Place the duck down raw materials into the vibrating screen and separate the duck down from impurities through mechanical vibration; S2: Soak the duck down obtained in S1 in warm water at 30℃-40℃, add neutral detergent to clean it, and then place the cleaned duck down in ultraviolet light with a wavelength range of 200nm~280nm for 30 minutes to 1 hour for disinfection; S3: Place the duck down obtained in S2 into a dryer, adjust the drying temperature to 40°C-50°C and dry for 1.5-3 hours, then place the duck down in front of a hair dryer at a distance of 20-30 cm, adjust the wind speed to 30-40 km / h, and continue to blow for 10-15 minutes; S4: placing the duck down obtained in S3 into a screening machine to separate small down and large down; S5: adding a deodorant and an aroma agent to the duck down obtained in S4, and then compressing and packaging the duck down to complete the pretreatment of the duck down.

2. The process for pretreating duck down for filling down jackets according to claim 1, characterized in that: The screening machine comprises a fixed frame (2), A box body (1) is fixed on the fixing frame (2), a material delivery pipe (5) is fixed on one side of the box body (1), an air inlet pipe (14) and an air outlet pipe (13) are provided on the other side of the box body (1), an air pump (3) is connected to the air inlet pipe (14), a filter screen (131) is fixed to the air outlet pipe (13), a large flock outlet (11) and a small flock outlet (12) are provided at the bottom of the box body (1), a sieve cylinder (8) is fixed inside the box body (1), a small flock cavity (15) is provided between the sieve cylinder (8) and the inner wall of the box body (1), the small flock cavity (15) is communicated with the small flock outlet (12), the sieve cylinder (8) is communicated with the large flock outlet (11), an air blowing pipe (7) is provided inside the sieve cylinder (8), and the air blowing pipe (7) is connected to the air inlet pipe (14).

3. The process for pretreating duck down for filling down jackets according to claim 2, characterized in that: A motor box (93) is provided on the side of the housing (1) close to the air inlet pipe (14), a first drive motor (921) is fixed in the motor box (93), a first gear (91) is fixed on the air blowing pipe (7), the air blowing pipe (7) is rotatably connected to the housing (1), a second gear (92) is rotatably connected in the motor box (93), the first gear (91) and the second gear (92) are meshed, and an output shaft of the first drive motor (921) is fixedly connected to the second gear (92).

4. The process for pretreating duck down for filling down jackets according to claim 3, characterized in that: A first rotating member (72) is fixed to the end of the air blowing pipe (7) close to the air inlet pipe (14); a second rotating member (141) is provided to the end of the air inlet pipe (14) close to the air blowing pipe (7); a first rotating groove (142) is provided in the second rotating member (141); the first rotating member (72) is rotatably connected to the first rotating groove (142); a sealing member (143) is further provided on the second rotating member (141); the sealing member (143) is rotatably connected to the air inlet pipe (14); and the sealing member (143) and the second rotating member (141) are fixed by bolt connection.

5. The process for pretreating duck down for filling down jackets according to claim 2, characterized in that: A plurality of exhaust pipes (71) are provided on the side wall of the air blowing pipe (7), each of the exhaust pipes (71) points to the central axis of the air blowing pipe (7), and a plurality of exhaust holes (711) are provided on the exhaust pipe (71).

6. The process for pretreating duck down for filling down jackets according to claim 2, characterized in that: A spiral blade (64) is rotatably connected inside the material conveying pipe (5), a second drive motor (641) is fixed on the material conveying pipe (5), and an output shaft of the second drive motor (641) is fixedly connected to the spiral blade (64).

7. The process for pretreating duck down for filling down jackets according to claim 2, characterized in that: The conveying pipe (5) is provided with a feed hopper (6), the feed hopper (6) is rotatably connected with a sealing cover (61), a first locking member (62) is provided on the side of the feed hopper (6) close to the sealing cover (61), and a second locking member (63) is provided on the side of the sealing cover (61) close to the feed hopper (6).

8. The process for pretreating duck down for filling down jackets according to claim 7, characterized in that: The first locking member (62) is provided with a second rotating groove (621), and a first locking block (623) is rotatably connected in the second rotating groove (621). The first locking member (62) and the second locking member (63) are both semicircular structures. The second locking member (63) is provided with a third rotating groove (631), and a second locking block (633) is rotatably connected in the third rotating groove (631). A gap is provided between the first locking member (62) and the second locking member (63). A first adjusting groove (622) is provided on a side wall of the second rotating groove (621), and a first adjusting block (624) is fixed on the first locking block (623). The first adjusting block (624) is slidably connected to the first adjusting groove (622). A second adjusting groove (632) is provided on a side wall of the third rotating groove (631), and a second adjusting block (634) is fixed on the second locking block (633). The second adjusting block (634) is slidably connected to the second adjusting groove (632).

9. The process for pretreating duck down for filling down jackets according to claim 2, characterized in that: The large flock outlet (11) is provided with a first collecting hopper (111), and the small flock outlet (12) is provided with a second collecting hopper (121); both the first collecting hopper (111) and the second collecting hopper (121) are of a quadrangular pyramid structure.

10. The process for pretreating duck down for filling down jackets according to claim 3, characterized in that: The bottom of the first collecting hopper (111) and the bottom of the second collecting hopper (121) are both connected to an exhaust fan (4), and a sealing layer (611) is provided at the lower end of the sealing cover (61), and the sealing layer (611) is made of rubber material.

Images