Automatic cotton filling machine

By designing the mixing and filling units of the automatic cotton filling machine, the problems of cotton clumping and leakage in existing cotton filling machines have been solved, realizing uniform cotton filling and automated production, thereby improving production efficiency and product quality.

CN223973873UActive Publication Date: 2026-03-06BAODING FEIXIANG MASCH TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing cotton filling machines suffer from problems such as clumping, cotton leakage, cumbersome operation, and low automation during the filling process, making it difficult to achieve efficient production line production.

Method used

An automatic cotton filling machine was designed, comprising a stirring unit, a filling unit, and a bag feeding unit. The machine achieves uniform filling of cotton by stirring the cotton with a stirring rod, controlling the flipping mechanism and the blowing mechanism, and combining the automatic bag picking by a robotic arm and the conveyor belt to realize automated production.

Benefits of technology

It improved production efficiency, enhanced product quality, ensured loose and uniform cotton filling, reduced cotton leakage, simplified operating procedures, and improved production efficiency and product appearance quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223973873U_ABST
    Figure CN223973873U_ABST
Patent Text Reader

Abstract

The utility model discloses an automatic cotton filling machine which comprises a frame body, a cotton storage box is arranged at the top end of the frame body, a cover body is arranged above the cotton storage box, a cotton inlet and a stirring unit are arranged on the upper surface of the cover body, a cotton filling unit is connected to the lower surface of the cotton storage box, and a bag feeding unit and a conveying belt are sequentially arranged below the cotton filling unit. According to the automatic cotton filling machine, cotton is evenly stirred through the stirring unit, it is guaranteed that the cotton is loose, good conditions are provided for the follow-up cotton filling process, the cotton filling unit is matched with the bag feeding unit, the automatic production process is achieved, and the overall production efficiency is remarkably improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of cotton filling machine technology, and in particular to an automatic cotton filling machine. Background Technology

[0002] A stuffing machine, also known as a filling machine, is a mechanical device specifically designed to fill plush toys, sofa cushions, throw pillows, and pillow cores with stuffing materials such as PP cotton. It has wide applications in various industries, including plush toy manufacturing, home textiles, furniture, and clothing. However, some problems exist with the stuffing machines currently on the market.

[0003] Specifically, operators need to manually stuff cotton wool into the feed port of the filling machine, then align the plush toys, sofa cushions, throw pillows, or pillowcases to be filled with cotton wool through the filling nozzle. Next, the filling machine is started by stepping on a foot pedal, generating high-pressure gas to fill the items with cotton wool, completing the filling process. Clumping of the filling material often occurs during filling, affecting the quality of the filling. Leakage from the filling nozzle is also common, reducing filling efficiency and wasting filling material. This process is cumbersome, relatively complex, and has a low level of automation and intelligence. This not only makes operators prone to fatigue but also makes it difficult to achieve long-term, streamlined, and efficient production. Utility Model Content

[0004] The purpose of this invention is to provide an automatic cotton filling machine. By setting up a stirring unit, the cotton is stirred evenly to ensure that the cotton is loose, which provides good conditions for the subsequent cotton filling process. Furthermore, by cooperating with the bag feeding unit, the cotton filling unit realizes an automated production process and significantly improves the overall production efficiency.

[0005] To achieve the above objectives, this utility model provides an automatic cotton filling machine, including a frame, a cotton storage box at the top of the frame, a cover above the cotton storage box, a cotton inlet and a stirring unit on the upper surface of the cover, a cotton filling unit connected to the lower surface of the cotton storage box, and a bag feeding unit and a conveyor belt arranged sequentially below the cotton filling unit.

[0006] Preferably, the stirring unit includes a first motor, a half-bevel gear, a stirring rod, and a heat dissipation shell. The stirring rod passes through the upper surface of the cover and is disposed inside the cotton storage box. One end of the half-bevel gear is fixedly connected to the output end of the first motor, and the other end is fixedly connected to the upper end of the stirring rod. The heat dissipation shell covers the first motor, the half-bevel gear, and the stirring rod inside.

[0007] Preferably, a plurality of protrusions are fixedly provided on the lower end surface of the stirring rod, and the protrusions rotate with the stirring rod to agitate the cotton inside the cotton storage box.

[0008] Preferably, the filling unit includes a control flipping mechanism, an air blowing mechanism, a filling chamber, and a filling head. The upper opening of the filling chamber is detachably connected to the cotton outlet of the cotton storage chamber. The control flipping mechanism is located at the connection between the filling chamber and the cotton storage chamber. The control flipping mechanism includes a second motor, a baffle, and a rotating rod. The baffle is located at the upper opening of the filling chamber. One end of the rotating rod passes through the upper outer wall of the filling chamber and is fixedly connected to the baffle. The other end is fixedly connected to the output end of the second motor. The second motor is located on the upper outer surface of the filling chamber, and the position of the second motor corresponds to the position of the baffle.

[0009] Preferably, the air blowing mechanism includes an air pump, an air blowing ring, and air blowing heads. The air blowing ring is located at the upper end of the filling chamber, and the vertical height of the air blowing ring is lower than the height of the baffle. The air blowing ring is connected to the air pump through a connecting pipe. The air pump is located on the outer surface of the cotton storage chamber. A plurality of air blowing heads are located on the lower surface of the air blowing ring, and the air blowing heads are connected to the internal air chamber of the air blowing ring.

[0010] Preferably, the lower end of the filling chamber is a telescopic tube, the lower end of the filling chamber is connected to the telescopic end of the hydraulic rod through a connecting plate, the fixed end of the hydraulic rod is fixedly connected to the frame, the filling head is connected to the opening at the lower end of the filling chamber, the filling head has a cavity inside, and a plurality of filling holes are provided through the surface of the filling head.

[0011] Preferably, the bag feeding unit includes a bag storage box and a robotic arm. The bag storage box is located at the lower end of the frame and is fixedly installed to the frame via a limiting rod. The robotic arm is also fixedly connected to the frame. The position of the robotic arm corresponds to the position of the bag storage box. The robotic arm and the bag storage box are electrically connected. The robotic arm removes the bag from the opening of the bag storage box through a horizontal telescopic function.

[0012] Therefore, the present invention employs the above-mentioned automatic cotton filling machine, which has the following technical effects:

[0013] (1) Improve production efficiency: The cotton is evenly stirred by the stirring unit, the cotton filling unit precisely controls the amount and timing of filling, and the bag feeding unit automatically picks up and conveys bags, thus improving overall production efficiency;

[0014] (2) Improve product quality: Stirring makes the cotton loose and uniform, and the filling unit design avoids accumulation or omission, thus improving the filling effect and appearance quality;

[0015] (3) Easy to maintain and clean: The cotton filling bin and the cotton storage box are detachably connected, and the robotic arm can easily pick up the bags and clean the storage box.

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the automatic cotton filling machine of this utility model;

[0018] Figure 2 This is a schematic diagram of the stirring unit structure of an embodiment of the automatic cotton filling machine of this utility model;

[0019] Figure 3 This is a schematic diagram of the filling unit structure of an embodiment of an automatic filling machine according to this utility model;

[0020] Figure 4 This is a schematic diagram of the control flipping mechanism structure of an embodiment of an automatic cotton filling machine according to this utility model;

[0021] Figure 5 This is a schematic diagram of the air blowing mechanism structure of an embodiment of an automatic cotton filling machine according to this utility model.

[0022] Figure Labels

[0023] 1. Frame; 2. Cotton storage box; 3. Cover; 4. Cotton inlet; 5. Stirring unit; 51. First motor; 52. Half bevel gear; 53. Stirring rod; 54. Heat dissipation shell; 531. Protrusion; 6. Cotton filling unit; 61. Control flipping mechanism; 62. Air blowing mechanism; 63. Cotton filling bin; 64. Cotton filling head; 611. Second motor; 612. Baffle; 613. Rotating rod; 621. Air pump; 622. Air blowing ring; 623. Air blowing head; 641. Cotton filling hole; 7. Bag feeding unit; 71. Bag storage box; 72. Robotic arm; 8. Conveyor belt; 9. Control panel; 10. Hydraulic rod. Detailed Implementation

[0024] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0025] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figure 1 As shown, an automatic cotton filling machine includes a frame 1, which serves as the supporting structure for the entire machine, stably supporting all other components. A cotton storage box 2 is located at the top of the frame 1 for storing cotton to be filled. A cover 3 is located above the cotton storage box 2, and a cotton inlet 4 and a stirring unit 5 are located on the upper surface of the cover 3. A cotton filling unit 6 is connected to the lower surface of the cotton storage box 2, and a bag feeding unit 7 and a conveyor belt 8 are sequentially located below the cotton filling unit 6.

[0027] like Figure 2 As shown, the stirring unit 5 includes a first motor 51, a semi-bevel gear 52, a stirring rod 53, and a heat dissipation shell 54. The stirring rod 53 penetrates the upper surface of the cover 3 and extends into the cotton storage box 2. The output end of the first motor 51 is fixedly connected to one end of the semi-bevel gear 52, and the other end of the semi-bevel gear 52 is fixedly connected to the upper end of the stirring rod 53, thus forming a transmission mechanism. The heat dissipation shell 54 covers the entire driving part of the stirring unit 5 and the stirring rod 53, effectively preventing the motor from overheating. Several protrusions 531 are fixedly provided on the lower surface of the stirring rod 53. When the stirring rod 53 rotates, the protrusions 531 stir the cotton inside the cotton storage box 2, ensuring that the cotton is loose and uniform, which is convenient for subsequent filling.

[0028] like Figures 3 to 5As shown, the cotton filling unit 6 is located below the cotton storage box 2 and includes a control flipping mechanism 61, an air blowing mechanism 62, a cotton filling chamber 63, and a cotton filling head 64. The upper opening of the cotton filling chamber 63 is detachably connected to the cotton outlet of the cotton storage box 2 for easy cleaning and maintenance. The control flipping mechanism 61 includes a second motor 611, a baffle 612, and a rotating rod 613. The baffle 612 is located at the upper opening of the cotton filling chamber 63 and is fixedly connected to the output end of the second motor 611 via the rotating rod 613. When cotton filling is required, the second motor 611 drives the baffle 612 to rotate, opening the cotton filling channel. The air blowing mechanism 62 includes an air pump 621, an air blowing ring 622, and an air blowing head 623. The air blowing ring 622 is located at the upper end of the cotton filling chamber 63, and its vertical height is lower than the height of the baffle 612. It is connected to the air pump 621 via a connecting pipe. The outer surface of the air pump 621 is equipped with a control panel 9. The lower surface of the air-blowing ring 622 is provided with several air-blowing heads 623, which are connected to the internal air chamber of the air-blowing ring 622 for blowing cotton into the filling chamber 63. The lower end of the filling chamber 63 is a telescopic tube, which is connected to the telescopic end of the hydraulic rod 10 via a connecting plate. The fixed end of the hydraulic rod 10 is fixedly connected to the frame 1. The filling head 64 is connected to the lower opening of the filling chamber 63. The filling head 64 has a cavity inside and several filling holes 641 penetrating its surface to ensure that the cotton can be evenly filled into the bag. During filling, the hydraulic rod 10 controls the filling head 64 to descend, preventing cotton leakage. The middle part of the filling chamber 63 is made of a transparent material, such as transparent resin or acrylic, to facilitate the operator's observation of the looseness and quality of the cotton inside the filling chamber 63.

[0029] The bag feeding unit 7 includes a bag storage box 71 and a robotic arm 72. The bag storage box 71 is located at the lower end of the frame 1 and is fixedly mounted to the frame 1 via a limiting rod. The robotic arm 72 is also fixedly connected to the frame 1, and its position corresponds to that of the bag storage box 71. The robotic arm 72 and the bag storage box 71 are electrically connected. The robotic arm 72 removes the bag from the opening of the bag storage box 71 through a horizontal telescopic function, preparing for subsequent cotton filling. The first motor 51, the second motor 611, the hydraulic rod 10, the air pump 621, and the bag feeding unit 7 are all electrically connected to the control panel 9.

[0030] The conveyor belt 8 is located below the cotton filling unit 6 and is used to transport the filled bags to the next process.

[0031] Working Principle: When using this automatic cotton filling machine, the operator pours cotton into the cotton storage box 2 through the cotton inlet 4. The first motor 51 starts, driving the stirring rod 53 to rotate inside the cotton storage box 2 via the half-bevel gear 52. The protrusion 531 at the lower end of the stirring rod 53 agitates the cotton, making it loose and evenly distributed, preparing it for the filling process. Subsequently, the robotic arm 72 removes the bag to be filled from the bag storage box 71 and places it in the filling position. The second motor 611 starts, driving the baffle 612 to rotate and opening the filling channel. The air pump 621 starts, blowing the cotton in the cotton storage box 2 into the filling chamber 63 through the air blowing ring 622 and air blowing head 623. The cotton passes through the filling chamber 63 and the filling head 64, and is evenly filled into the bag through the filling hole 641. The running time of the flipping mechanism 61 and the air blowing mechanism 62 is controlled to precisely control the amount of cotton in each bag. Finally, the filled bags are conveyed onto conveyor belt 8, which transports the bags to the next process, such as sealing and finishing.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. An automatic cotton filling machine characterized by: Including frame body, the frame body top is equipped with cotton storage box, the cotton storage box top is equipped with cover, the cover upper surface is equipped with cotton inlet and stirring unit, the cotton storage box lower surface is connected with cotton filling unit, the cotton filling unit includes control turnover mechanism, air blowing mechanism, cotton filling bin, cotton filling head, the cotton filling bin upper end opening is detachably connected with the cotton storage box cotton outlet, the control turnover mechanism is arranged at the connection of the cotton filling bin and the cotton storage box, the cotton filling unit lower side is sequentially provided with bag feeding unit and conveying belt.

2. An automatic cotton filling machine according to claim 1, characterized in that: The stirring unit includes a first motor, a bevel gear, a stirring rod, and a heat dissipation shell. The stirring rod penetrates the upper surface of the cover and is arranged inside the cotton storage box. One end of the bevel gear is fixedly connected with the output end of the first motor, and the other end is fixedly connected with the upper end of the stirring rod. The heat dissipation shell covers the first motor, the bevel gear, and the stirring rod inside.

3. An automatic cotton filling machine according to claim 2, characterized in that: A plurality of protrusions are fixedly arranged on the lower end surface of the stirring rod. The protrusions rotate with the stirring rod and are used to stir the cotton inside the cotton storage box.

4. An automatic cotton filling machine according to claim 3, characterized in that: The control turnover mechanism includes a second motor, a baffle, and a rotating rod. The baffle is arranged at the upper end opening of the cotton filling bin. One end of the rotating rod penetrates the upper end outer wall of the cotton filling bin and is fixedly connected with the baffle. The other end is fixedly connected with the output end of the second motor. The second motor is arranged on the upper end outer surface of the cotton filling bin. The position of the second motor corresponds to the position of the baffle.

5. An automatic cotton filling machine according to claim 4, characterized in that: The air blowing mechanism includes an air pump, an air blowing ring, and air blowing heads. The air blowing ring is arranged on the upper end of the cotton filling bin. The vertical height of the air blowing ring is lower than the height of the baffle. The air blowing ring is connected with the air pump through a connecting pipe. The air pump is arranged on the outer surface of the cotton storage box. A plurality of air blowing heads are arranged on the lower surface of the air blowing ring. The air blowing heads are in communication with the air cavity inside the air blowing ring.

6. An automatic cotton filling machine according to claim 5, characterized in that: The lower end of the cotton filling bin is a telescopic pipe body. The lower end of the cotton filling bin is connected with the telescopic end of a hydraulic rod through a connecting plate. The fixed end of the hydraulic rod is fixedly connected with the frame body. The cotton filling head is connected with the lower end opening of the cotton filling bin. The cotton filling head is internally provided with a cavity. A plurality of cotton filling holes are arranged on the surface of the cotton filling head.

7. An automatic cotton filling machine according to claim 6, characterized in that: The bag feeding unit includes a bag storage box and a mechanical hand. The bag storage box is arranged on the lower end of the frame body. The bag storage box is fixedly arranged with the frame body through a limiting rod. The mechanical hand is also fixedly connected with the frame body. The position of the mechanical hand corresponds to the position of the bag storage box. The mechanical hand is electrically connected with the bag storage box. The mechanical hand takes out the bag body from the opening of the bag storage box through the horizontal telescopic function.