An expandable down filling nozzle for a down jacket filling machine
By designing an expandable filling nozzle, using stretchable rubber material and a limiting retaining ring structure, the problem of low filling efficiency caused by a fixed filling nozzle diameter is solved, enabling flexible adjustment of the filling nozzle diameter and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUAN JIUTAI FASHION CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-07-31
AI Technical Summary
The fixed diameter of the filling nozzle in existing down jacket filling machines results in low filling efficiency at the cuffs and collar, and the replacement is troublesome, which affects production efficiency.
Design an expandable down filling nozzle, which is made of stretchable rubber material and has small and large diameter down filling inner tubes. The nozzle can be quickly expanded and fixed by limiting rings and retaining rings to meet the down filling needs of different parts.
It improves down filling efficiency, meets the down filling needs of different parts, and the diameter can be quickly changed, making it convenient and flexible to use and improving production efficiency.
Smart Images

Figure CN224572285U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of garment processing technology, specifically to an expandable down filling nozzle for a down jacket filling machine. Background Technology
[0002] Down filling machines are automated devices specifically designed to precisely fill the layers of down jackets. They use high-pressure blowers to extract down and fill down jackets, down comforters, and other bedding products. Down filling machines greatly improve the filling efficiency of down jackets and increase production efficiency.
[0003] The down filling nozzle of a down jacket filling machine is a key component for filling down. The down filling nozzle blows the metered down directly into the designated location in the garment's interlayer using high-pressure airflow. When filling down jackets, small-diameter down filling nozzles are required because the filling nozzles at the cuffs and collar are smaller. However, the filling nozzles at the body of the garment are larger and require more down, so small-diameter down filling nozzles are less efficient and need to be replaced with larger-diameter ones. However, the diameter of the down filling nozzle is usually fixed, making replacement troublesome and reducing the efficiency of the down filling process. Therefore, we propose an expandable down filling nozzle for down jacket filling machines. Utility Model Content
[0004] The purpose of this invention is to provide an expandable down filling nozzle for a down jacket filling machine, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an expandable down filling nozzle for a down filling machine, comprising an elastic down filling nozzle, a small-diameter down filling inner tube disposed on one side of the elastic down filling nozzle, and a large-diameter down filling inner tube disposed on the other side of the elastic down filling nozzle, a limiting ring fixed on the outer wall of one end of the large-diameter down filling inner tube, an annular groove disposed on the outer wall of one side of the limiting ring, a down outlet nozzle disposed on one side of the elastic down filling nozzle, and a splicing retaining ring fixed on one end of the down outlet nozzle near the large-diameter down filling inner tube, the splicing retaining ring being tightly engaged with the annular groove, and the splicing retaining ring being tightly fitted with a rubber sealing ring on the inner wall of the annular groove.
[0006] Preferably, the elastic down filling nozzle is made of stretchable rubber material, one end of the elastic down filling nozzle is provided with an elastic down filling port, and the other end of the elastic down filling nozzle is provided with an elastic down inlet port.
[0007] Preferably, a positioning ring is provided on the outer wall of the elastic filling nozzle at the elastic inlet position, and a positioning ring groove is provided on the side wall of the positioning ring.
[0008] Preferably, one end of the small-diameter down-filling inner tube is provided with a first down-filling port, and the other end of the small-diameter down-filling inner tube is provided with a first down-inlet port.
[0009] Preferably, one end of the large-diameter down-filling inner tube is provided with a second down-filling port, and the other end of the small-diameter down-filling inner tube is provided with a second down-inlet port.
[0010] Preferably, both the first and second down filling ports are angled to facilitate insertion into the lining of the down jacket.
[0011] Preferably, the outer wall of the limiting retaining ring is provided with a mounting hole, and the mounting hole is provided with a mounting bolt. The mounting bolt is threadedly connected to the threaded hole on the surface of the splicing retaining ring for connecting the large-diameter down filling inner tube and the down outlet nozzle.
[0012] Preferably, a positioning protrusion is fixed on the outer wall of the other side of the limiting ring, and the positioning protrusion cooperates with the positioning ring groove.
[0013] Compared with the prior art, the beneficial effects of this utility model are: When filling the cuffs and collar of a down jacket, insert the elastic filling nozzle, which has a small-diameter filling tube, into the cuffs and collar. The down first enters the small-diameter filling tube from the outlet nozzle. When filling the body of the down jacket, pull the small-diameter filling tube out of the elastic filling nozzle, and then pull the elastic filling nozzle horizontally until it is completely covered by the large-diameter filling tube. Because the elastic filling nozzle is made of stretchable rubber... The large-diameter inner tube expands the elastic filling nozzle, causing its diameter to increase. The positioning protrusion on the outer wall of the limiting ring engages with the positioning ring groove on the outer wall of the positioning ring, fixing the elastic filling nozzle and the large-diameter inner tube. At this point, the elastic filling nozzle with the large-diameter inner tube is inserted into the filling area of the garment, which can meet the needs of a large filling diameter and a large filling amount, improving filling efficiency. This design allows for quick changes in the diameter of the filling nozzle, making it convenient and highly flexible to use. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model; Figure 2 This is an enlarged structural schematic diagram of the elastic down filling nozzle of this utility model; Figure 3 This is a three-dimensional enlarged structural diagram of the first down-filling inner tube of this utility model; Figure 4 This is a three-dimensional enlarged structural diagram of the first down-filling inner tube of this utility model; Figure 5 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle.
[0015] In the diagram: 1. Elastic filling nozzle; 2. Small-diameter filling inner tube; 3. Large-diameter filling inner tube; 4. Elastic filling port; 5. Elastic inlet port; 6. Positioning ring; 7. Positioning ring groove; 8. First filling port; 9. First inlet port; 10. Second filling port; 11. Second inlet port; 12. Limiting ring; 13. Positioning protrusion ring; 14. Annular groove; 15. Mounting hole; 16. Mounting bolt; 17. Outlet nozzle; 18. Splicing retaining ring; 19. Threaded hole; 20. Rubber sealing ring. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0017] Please see Figure 1-5 An embodiment of this utility model provides: an expandable down filling nozzle for a down filling machine, including an elastic down filling nozzle 1, a small-diameter down filling inner tube 2 provided on one side of the elastic down filling nozzle 1, a large-diameter down filling inner tube 3 provided on the other side of the elastic down filling nozzle 1, a limiting ring 12 fixed on the outer wall of one end of the large-diameter down filling inner tube 3, an annular groove 14 provided on the outer wall of one side of the limiting ring 12, a down outlet nozzle 17 provided on one side of the elastic down filling nozzle 1, a splicing retaining ring 18 fixed on one end of the down outlet nozzle 17 near the large-diameter down filling inner tube 3, the splicing retaining ring 18 is tightly engaged with the annular groove 14, and the splicing retaining ring 18 is tightly fitted with the rubber sealing ring 20 on the inner wall of the annular groove 14; The elastic down filling nozzle 1 is made of stretchable rubber material. One end of the elastic down filling nozzle 1 is provided with an elastic down filling port 4, and the other end of the elastic down filling nozzle 1 is provided with an elastic down inlet port 5. Specifically, the elastic down filling nozzle 1 is equipped with a small-diameter down filling inner tube 2 and a large-diameter down filling inner tube 3. When filling the cuffs and collar of the down jacket with down, the elastic down filling nozzle 1 with the small-diameter down filling inner tube 2 is inserted into the cuffs and collar to fill the down. The down first enters the small-diameter down filling inner tube 2 from the down outlet nozzle 17 and then enters the small-diameter down filling inner tube 2. When filling the down jacket body with down, pull the small-diameter filling inner tube 2 out of the elastic filling nozzle 1, and then pull the elastic filling nozzle 1 horizontally so that it is completely covered by the large-diameter filling inner tube 3. Since the elastic filling nozzle 1 is made of stretchable rubber, the large-diameter filling inner tube 3 expands the elastic filling nozzle 1, causing the diameter of the elastic filling nozzle 1 to expand. Insert the elastic filling nozzle 1 with the large-diameter filling inner tube 3 into the filling area of the garment body. This can meet the needs of large filling diameter and large filling amount, and improve filling efficiency. This design can quickly change the diameter of the filling nozzle, and is convenient and flexible to use. A positioning ring 6 is provided on the outer wall of the elastic down filling nozzle 1 at the position of the elastic down inlet 5, and a positioning ring groove 7 is provided on the side wall of the positioning ring 6. One end of the small-diameter down-filling inner tube 2 is provided with a first down-filling port 8, and the other end of the small-diameter down-filling inner tube 2 is provided with a first down-inlet port 9. One end of the large-diameter down-filling inner tube 3 is provided with a second down-filling port 10, and the other end of the small-diameter down-filling inner tube 2 is provided with a second down-inlet port 11. Both the first down filling port 8 and the second down filling port 10 are angled, making it easy to insert into the inner layer of the down jacket; The outer wall of the limiting retaining ring 12 is provided with a mounting hole 15, and the mounting hole 15 is provided with a mounting bolt 16. The mounting bolt 16 is threadedly connected to the threaded hole 19 on the surface of the splicing retaining ring 18. By screwing the mounting bolt 16 from the mounting hole 15 into the threaded hole 19, the large-diameter down-filling inner tube 3 can be connected to the down-discharge nozzle 17. The splicing retaining ring 18 and the rubber sealing ring 20 on the inner wall of the annular groove 14 fit tightly together, which improves the sealing performance of the two. A positioning protrusion 13 is fixed on the outer wall of the other side of the limiting ring 12, and the positioning protrusion 13 cooperates with the positioning ring groove 7. The positioning protrusion 13 on the outer wall of the limiting ring 12 is inserted into the positioning ring groove 7 on the outer wall of the positioning ring 6 to fix the elastic filling nozzle 1 and the large-diameter filling inner tube 3.
[0018] In this embodiment, the following steps are taken: First, the elastic down filling nozzle 1 is equipped with a small-diameter down filling inner tube 2 and a large-diameter down filling inner tube 3. When filling the cuffs and collar of the down jacket, the elastic down filling nozzle 1 with the small-diameter down filling inner tube 2 is inserted into the cuffs and collar for filling. The down first enters the small-diameter down filling inner tube 2 from the down outlet 17. When filling the body of the down jacket, the small-diameter down filling inner tube 2 is pulled out from the elastic down filling nozzle 1, and then the elastic down filling nozzle 1 is pulled horizontally so that it is completely covered by the large-diameter down filling inner tube 3. Externally, because the elastic filling nozzle 1 is made of stretchable rubber, the large-diameter filling inner tube 3 expands the elastic filling nozzle 1, causing the diameter of the elastic filling nozzle 1 to expand. The positioning protrusion 13 on the outer wall of the limiting ring 12 is inserted into the positioning ring groove 7 on the outer wall of the positioning ring 6, fixing the elastic filling nozzle 1 and the large-diameter filling inner tube 3. At this time, the elastic filling nozzle 1 with the large-diameter filling inner tube 3 is inserted into the filling part of the garment, which can meet the needs of large filling diameter and large filling amount, and improve filling efficiency. This design can quickly change the diameter of the filling nozzle, which is convenient to use and highly flexible.
Claims
1. An expandable down filling nozzle for a down jacket filling machine, comprising an elastic down filling nozzle (1), characterized in that, One side of the elastic filling nozzle (1) is provided with a small-diameter filling inner tube (2), and the other side of the elastic filling nozzle (1) is provided with a large-diameter filling inner tube (3). A limit ring (12) is fixed on the outer wall of one end of the large-diameter filling inner tube (3). An annular groove (14) is provided on the outer wall of one side of the limit ring (12). A filling nozzle (17) is provided on one side of the elastic filling nozzle (1). A splicing ring (18) is fixed on one end of the filling nozzle (17) near the large-diameter filling inner tube (3). The splicing ring (18) is tightly engaged with the annular groove (14). The splicing ring (18) is tightly fitted with the rubber sealing ring (20) on the inner wall of the annular groove (14).
2. The expandable down filling nozzle for a down jacket filling machine according to claim 1, characterized in that: The elastic filling nozzle (1) is made of stretchable rubber material. One end of the elastic filling nozzle (1) is provided with an elastic filling port (4), and the other end of the elastic filling nozzle (1) is provided with an elastic filling port (5).
3. The expandable down filling nozzle for a down jacket filling machine according to claim 2, characterized in that: A positioning ring (6) is provided on the outer wall of the elastic filling nozzle (1) at the position of the elastic inlet (5), and a positioning ring groove (7) is provided on the side wall of the positioning ring (6).
4. The expandable down filling nozzle for a down jacket filling machine according to claim 1, characterized in that: One end of the small-diameter down-filling inner tube (2) is provided with a first down-filling port (8), and the other end of the small-diameter down-filling inner tube (2) is provided with a first down-inlet port (9).
5. The expandable down filling nozzle for a down jacket filling machine according to claim 1, characterized in that: One end of the large-diameter down-filling inner tube (3) is provided with a second down-filling port (10), and the other end of the small-diameter down-filling inner tube (2) is provided with a second down-inlet port (11).
6. The expandable down filling nozzle for a down jacket filling machine according to claim 4, characterized in that: Both the first filling port (8) and the second filling port (10) are slanted.
7. The expandable down filling nozzle for a down jacket filling machine according to claim 1, characterized in that: The outer wall of the limiting retaining ring (12) is provided with a mounting hole (15), and the mounting hole (15) is provided with a mounting bolt (16), and the mounting bolt (16) is threadedly connected to the threaded hole (19) on the surface of the splicing retaining ring (18).
8. The expandable down filling nozzle for a down jacket filling machine according to claim 1, characterized in that: A positioning protrusion (13) is fixed on the outer wall of the other side of the limiting ring (12), and the positioning protrusion (13) cooperates with the positioning ring groove (7).