Cotton filling machine for pillow processing

By using magnet rods to stir cotton in the cotton filling machine, the problems of fiber agglomeration and uneven distribution are solved, the full mixing of fibers and efficient utilization of raw materials are achieved, and the production efficiency and product quality are improved.

CN222159752UActive Publication Date: 2024-12-13FOSHAN BEIDUOSI HOME FURNITURE TEXTILE CO LTD
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Patent Information

Application Number
CN202420970012.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-07
Publication Date
2024-12-13
Estimated Expiration
2034-05-07

AI Technical Summary

Technical Problem

Existing pillow cotton filling machines are prone to fiber agglomeration and uneven distribution when filling cotton, resulting in product quality decline and waste of raw materials.

Method used

A cotton filling machine for pillow processing is designed, using magnet rods to stir cotton, eliminate the agglomeration and uneven distribution between fibers through magnetic characteristics, so that the fibers are mixed more fully, reduce waste, and absorb the inside of the cotton. Iron filings improve product quality.

Benefits of technology

Effectively eliminate fiber agglomeration and uneven distribution, improve the full utilization rate of fibers, reduce waste, improve production efficiency, and improve product quality through magnetic adsorption of iron filings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of home textile equipment, and particularly relates to a cotton filling machine for pillow processing, which comprises a base. The upper end of the base is fixedly connected with a body; a servo motor is fixedly connected to the inner side of the base; the output end of the servo motor is fixedly connected with a fixing column, and the outer side of the fixing column is fixedly connected with a plurality of sets of fan blades. A first gear ring is fixedly connected to the outer side of the fixing column and located between the fan blades and the servo motor. One end of the first connecting column is fixedly connected with a bevel gear; the other end of the first connecting column is fixedly connected with a fourth gear; and through rotation of a fourth gear, cotton is stirred, agglomeration and non-uniform distribution among fibers can be eliminated, the cotton can be mixed more sufficiently, and in the subsequent processing process of the cotton fibers, the fibers are fully utilized, waste is reduced, stable operation of a production line is maintained, and the overall production efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the field of home textile equipment, in particular to a cotton filling machine used for pillow processing. Background Art

[0002] With the continuous advancement of science and technology and people's increasing attention to sleep quality, the design and materials of pillows have been further improved. Modern pillows use a variety of materials, such as memory foam, cotton, down, etc. These materials have different characteristics and advantages, and can be selected according to personal preferences and needs.

[0003] At present, the cotton filling inside the pillow has changed from manual filling to cotton filling machine filling. Machine filling has efficient production capacity. Compared with traditional manual filling, it is highly efficient and of good quality. At the same time, the cotton filling machine can realize automatic filling, which greatly improves production efficiency, shortens the production cycle, and enables manufacturers to meet market demand more quickly.

[0004] Original cotton fibers often have problems of clumping and uneven distribution, resulting in uneven pillow filling, affecting comfort and support effects. At the same time, if the fibers are not fully mixed and utilized, dense and sparse fibers may be uneven during filling, which not only reduces product quality but also wastes raw materials. Therefore, a cotton filling machine for pillow processing is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model proposes a cotton filling machine for pillow processing.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a cotton filling machine for pillow processing, comprising a base; a main body is fixedly connected to the upper end of the base; a servo motor is fixedly connected to the inner side of the base; a fixed column is fixedly connected to the output end of the servo motor, and a plurality of groups of fan blades are fixedly connected to the outer side of the fixed column; a first gear ring is fixedly connected to the outer side of the fixed column and located between the fan blades and the servo motor; a first connecting column is rotatably connected to the inner side of the base; a bevel gear is fixedly connected to one end of the first connecting column; a fourth gear is fixedly connected to the other end of the first connecting column; the bevel gear is meshingly connected to the first gear ring; a second gear ring is rotatably connected to the upper end of the base; the fourth gear is meshingly connected to the second gear ring; and a stirring rod is rotatably connected to the upper end of the second gear ring.

[0007] Preferably, a third gear ring is fixedly connected to the upper end of the base; a fifth gear is fixedly connected to the outer side of the second gear ring; the fifth gear is meshingly connected to the third gear ring; a plurality of groups of magnet rods are arranged on the outer side of the second gear ring; and one end of the magnet rod is threadedly connected to the second gear ring.

[0008] Preferably, the base is slidably connected to a first slider at one end away from the servo motor; one end of the first slider is fixedly connected to a discharge pipe; the four end corners of the first slider are rotatably connected to first bolts; and the first slider is threadedly connected to the first bolt.

[0009] Preferably, a second connecting column is rotatably connected to the inner side of the body; a glass door is provided on the inner side of the second connecting column; the glass door is rotatably connected to the body, and the glass door is rotatably connected to the second connecting column; a handle is fixedly connected to the outer side of the glass door.

[0010] Preferably, a first fixing block is fixedly connected to the outer side of the glass door; a connecting block is fixedly connected to one side of the first fixing block; a second fixing block is fixedly connected to the outer side of the body; a second bolt is threadedly connected to the inner side of the second fixing block; and the second bolt is threadedly connected to the connecting block.

[0011] Preferably, a first straw is fixedly connected to the outside of the body; the first straw is rotatably connected to a first connecting ring at one end away from the body; the first connecting ring is threadedly connected to a second straw; and the second straw is rotatably connected to a second connecting ring at one end away from the first straw.

[0012] Preferably, a second slider is slidably connected to the inner side of the body; a hand lever is fixedly connected to one end of the second slider close to the first straw; the hand lever is slidably connected to the body; a third bolt is threadedly connected to one end of the second slider; and the third bolt is threadedly connected to the body.

[0013] The utility model is beneficial in that:

[0014] 1. The cotton filling machine for pillow processing described in the utility model rotates the magnetic rod to stir the cotton, which helps to eliminate the agglomeration and uneven distribution between the fibers, thereby making the cotton more fully mixed together, and helps to make full use of the cotton fibers in the subsequent processing process, reduce waste, help maintain the stable operation of the production line, and improve the overall production efficiency. At the same time, due to the magnetic characteristics of the magnetic rod, some iron filings inside the cotton can be absorbed, thereby improving product quality.

[0015] 2. The cotton filling machine for pillow processing described in the utility model rotates the magnetic rod to stir the cotton, which helps to eliminate lumps and uneven distribution between fibers, thereby making the cotton more fully mixed together, and helps to fully utilize the cotton fibers in the subsequent processing process, reduce waste, help maintain the stable operation of the production line, and improve overall production efficiency. At the same time, due to the magnetic characteristics of the magnetic rod, some iron filings inside the cotton can be absorbed, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the back of the three-dimensional structure in the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the second gear ring in the utility model;

[0020] Figure 4 It is a schematic diagram of the fan blade structure in the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the second sliding block in the utility model.

[0022] In the figure: 101, base; 102, body; 103, servo motor; 104, fixing column; 105, fan blade; 106, first gear ring; 107, first connecting column; 108, bevel gear; 109, fourth gear; 110, second gear ring; 111, stirring stick; 201, third gear ring; 202, fifth gear; 203, magnet rod; 301, first slider; 302, discharge pipe; 303, first bolt; 401, glass door; 402, handle; 403, second connecting column; 501, first fixing block; 502, connecting block; 503, second fixing block; 504, second bolt; 601, first straw; 602, first connecting ring; 603, second straw; 604, second connecting ring; 701, second slider; 702, hand lever; 703, third bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 , Figure 2-3 As shown, a cotton filling machine for pillow processing comprises a base 101; a body 102 is fixedly connected to the upper end of the base 101; a servo motor 103 is fixedly connected to the inner side of the base 101; a fixed column 104 is fixedly connected to the output end of the servo motor 103, and a plurality of groups of fan blades 105 are fixedly connected to the outer side of the fixed column 104; a first gear ring 106 is fixedly connected to the outer side of the fixed column 104 and located between the fan blades 105 and the servo motor 103; a first connecting column 107 is rotatably connected to the inner side of the base 101; a bevel gear 108 is fixedly connected to one end of the first connecting column 107; a fourth gear 109 is fixedly connected to the other end of the first connecting column 107; the bevel gear 108 is meshingly connected to the first gear ring 106; a second gear ring 110 is rotatably connected to the upper end of the base 101; the fourth gear 109 is meshingly connected to the second gear ring 110; The upper end of the second gear ring 110 is rotatably connected to a stirring rod 111; when working, the servo motor 103 is started, and the fixed column 104 is driven to rotate through the output end of the servo motor 103, and when the fixed column 104 rotates, the fan blades 105 and the first gear ring 106 are driven to rotate, and when the first gear ring 106 rotates, the first connecting column 107 is rotated by cooperating with the bevel gear 108, and when the first connecting column 107 rotates, the fourth gear 109 is driven to rotate, and then the second gear ring 110 is rotated, and when the second gear ring 110 rotates, the stirring rod 111 is driven to rotate. In this step, the cotton is stirred by rotating the fourth gear 109, which helps to eliminate caking and uneven distribution between fibers, thereby making the cotton more fully mixed together, which helps to make full use of the cotton fibers in the subsequent processing process and reduce waste, and helps to maintain the stable operation of the production line and improve the overall production efficiency.

[0025] like Figure 1 , Figure 2-3As shown, the upper end of the base 101 is fixedly connected with a third gear ring 201; the outer side of the second gear ring 110 is fixedly connected with a fifth gear 202; the fifth gear 202 is meshed with the third gear ring 201; a plurality of groups of magnet rods 203 are arranged on the outer side of the second gear ring 110; one end of the magnet rod 203 is threadedly connected with the second gear ring 110; during operation, when the fourth gear 109 rotates, the fifth gear 202 is driven to rotate, and when the fifth gear 202 rotates, the magnet rod 203 is rotated by cooperating with the third gear ring 201, so that the cotton is stirred more evenly; in this step, the cotton is stirred by rotating the magnet rod 203, which helps to eliminate the agglomeration and uneven distribution between the fibers, so that the cotton is more fully mixed together, which helps to make full use of the cotton fibers in the subsequent processing process, reduce waste, help maintain the stable operation of the production line, and improve the overall production efficiency. At the same time, due to the magnetic characteristics of the magnet rod 203, some iron cuttings inside the cotton can be absorbed, thereby improving product quality.

[0026] like Figure 1 , Figure 2-3 As shown, the end of the base 101 away from the servo motor 103 is slidably connected with the first slider 301; one end of the first slider 301 is fixedly connected with the discharge pipe 302; the four end corners of the first slider 301 are rotatably connected with the first bolt 303; the first slider 301 is threadedly connected with the first bolt 303; when working, when the device is closed, the discharge pipe 302 is placed on the inner side of the base 101, and then the first slider 301 is slid into the inner side of the base 101, and then the first bolt 303 is rotated to make the first bolt 303 threadedly connected with the base 101, and when the device is needed to fill the pillow When the discharge pipe 302 is placed on the outside of the base 101, the first slider 301 slides into the inside of the base 101, and then the first bolt 303 is rotated so that the first bolt 303 is threadedly connected to the base 101. In this step, the discharge pipe 302 can be placed on the inside of the base 101, which reduces the probability of personal injury when the equipment is not in use. In a working environment, even a slight bump may cause injury to people, especially in cases involving heavy equipment or sharp parts. Placing the equipment in a safe position helps create a safer working environment and protect the health of workers.

[0027] like Figure 1As shown, the inner side of the body 102 is rotatably connected to the second connecting column 403; the inner side of the second connecting column 403 is provided with a glass door 401; the glass door 401 is rotatably connected to the body 102, and the glass door 401 is rotatably connected to the second connecting column 403; the outer side of the glass door 401 is fixedly connected to a handle 402; during work, when the staff needs to clean the inner side of the body 102, they hold the handle 402 to rotate the glass door 401 around the second connecting column 403, and then clean the equipment; in this step, the staff can easily open the glass door 401 to clean and maintain the equipment. When cleaning the equipment, the tedious steps of disassembling the entire equipment for cleaning are reduced, thereby improving work efficiency.

[0028] like Figure 1 As shown, the outer side of the glass door 401 is fixedly connected with a first fixing block 501; one side of the first fixing block 501 is fixedly connected with a connecting block 502; the outer side of the body 102 is fixedly connected with a second fixing block 503; the inner side of the second fixing block 503 is threadedly connected with a second bolt 504; the second bolt 504 is threadedly connected with the connecting block 502; during operation, in order to open the glass door 401 in an unintentional manner during operation, the staff slides the connecting block 502 into the inner side of the second fixing block 503, and then rotates the second bolt 504 to thread the second bolt 504, the second fixing block 503, and the connecting block 502; in this step, the second bolt 504, the second fixing block 503, and the connecting block 502 are threadedly connected, so as to enhance the closed state of the body 102, reduce the probability of opening at will in an unintentional manner, reduce the dust, dirt or other contaminants entering the interior of the device due to frequent opening and closing, help keep the device clean and intact, reduce failures and damages caused by environmental factors, and stabilize the airflow inside the body 102.

[0029] like Figure 1As shown, the outer side of the body 102 is fixedly connected with a first straw 601; the end of the first straw 601 away from the body 102 is rotatably connected with a first connecting ring 602; the first connecting ring 602 is threadably connected with a second straw 603; the end of the second straw 603 away from the first straw 601 is rotatably connected with a second connecting ring 604; during operation, the first connecting ring 602 is rotated so that the second straw 603 is threadably connected to the first straw 601, and then the second connecting ring 604 is rotated so that another set of second straws 603 are threadably connected to the second connecting ring 604. 4 threaded connection, through the mutual cooperation between the multiple sets of second suction tubes 603 and the second connecting ring 604, when it is necessary to expand the cotton inside the body 102, the range of the staff to extract cotton in the warehouse is extended. In this step, through the mutual cooperation between the multiple sets of second suction tubes 603 and the second connecting ring 604, the expansion range can be flexibly adjusted, so that the staff can accurately control the expansion degree of cotton according to actual needs, thereby adapting to the needs of different warehouses or different cotton accumulation conditions, thereby improving work efficiency and reducing the burden on the staff.

[0030] like Figure 2 , Figure 5 As shown, a second slider 701 is slidably connected to the inner side of the body 102; a hand rod 702 is fixedly connected to one end of the second slider 701 close to the first suction tube 601; the hand rod 702 is slidably connected to the body 102; a third bolt 703 is threadedly connected to one end of the second slider 701; the third bolt 703 is threadedly connected to the body 102. During operation, when the staff does not need to expand the cotton inside the body 102, the hand rod 702 is slid, and the second slider 701 is driven to slide inside the body 102 through the hand rod 702. When the hand rod 702 seals the hole of the first suction tube 601, the third bolt 703 is rotated so that the third bolt 703 is threadedly connected to the body 102 and the hand rod 702; in this step, by sliding the hand rod 702 and rotating the third bolt 703, the cotton expansion device is quickly closed and fixed, which reduces cotton leakage, simplifies the operation process, enhances equipment stability and prolongs equipment service life, etc., which helps to improve work efficiency, reduce waste and loss, and improve the overall performance and reliability of the equipment.

[0031] Working principle: when working, start the servo motor 103, and drive the fixed column 104 to rotate through the output end of the servo motor 103. When the fixed column 104 rotates, it drives the fan blade 105 and the first gear ring 106 to rotate. When the first gear ring 106 rotates, the first connecting column 107 rotates through the design of cooperating with the bevel gear 108. When the first connecting column 107 rotates, it drives the fourth gear 109 to rotate, and then the second gear ring 110 rotates. When the second gear ring 110 rotates, it drives the stirring rod 111 to rotate. In this step, the cotton is stirred by the rotation of the fourth gear 109, which helps to eliminate the agglomeration and uneven distribution between the fibers, and then The cotton can be mixed more fully, which helps to make full use of the cotton fibers in the subsequent processing, reduce waste, help maintain the stable operation of the production line, and improve the overall production efficiency. During operation, when the fourth gear 109 rotates, it drives the fifth gear 202 to rotate. When the fifth gear 202 rotates, the magnetic rod 203 is rotated by cooperating with the third gear ring 201, so that the cotton is stirred more evenly. In this step, the magnetic rod 203 rotates to stir the cotton, which helps to eliminate lumps and uneven distribution between fibers, so that the cotton can be mixed more fully, which helps the cotton fibers in the subsequent processing. , so that the fiber is fully utilized and waste is reduced, which helps to maintain the stable operation of the production line and improve the overall production efficiency. At the same time, due to the magnetic characteristics of the magnetic rod 203, some iron cuttings inside the cotton can be absorbed, thereby improving the product quality. When working, when the equipment is turned off, the discharge pipe 302 is placed on the inner side of the base 101, and then the first slider 301 is slid into the inner side of the base 101, and then the first bolt 303 is turned so that the first bolt 303 is threadedly connected with the base 101. When the equipment is needed to fill the pillow, the discharge pipe 302 is placed on the outer side of the base 101, and the first slider 301 is slid into the inner side of the base 101, and then the first bolt is turned. 303, so that the first bolt 303 is threadedly connected with the base 101. In this step, the discharge pipe 302 can be placed inside the base 101, which reduces the probability of injury when the equipment is not in use. In the working environment, even a slight bump may cause injury to people, especially in the case of heavy equipment or sharp parts. Placing the equipment in a safe position helps to create a safer working environment and protect the health of the staff. When the staff needs to clean the inside of the body 102 during work, they hold the handle 402 to rotate the glass door 401 around the second connecting column 403, and then clean the equipment;In this step, the staff can easily open the glass door 401 to clean and maintain the equipment. When cleaning the equipment, the tedious steps of disassembling the entire equipment for cleaning are reduced, thereby improving work efficiency. During work, in order to open the glass door 401 in an unintentional manner during operation, the staff slides the connecting block 502 into the inner side of the second fixing block 503, and then rotates the second bolt 504 to thread the second bolt 504, the second fixing block 503, and the connecting block 502; in this step, the second bolt 504, the second fixing block 503, and the connecting block 502 are threadedly connected, so that the main body 102 is in a closed state, and the unintentional opening of the glass door 401 in an unintentional manner is reduced. The probability of opening is reduced, and dust, dirt or other pollutants entering the device due to frequent opening and closing are reduced, which helps to keep the device clean and intact, reduce failures and damages caused by environmental factors, and stabilize the airflow inside the body 102. The outside of the body 102 is fixedly connected to a first suction pipe 601; the end of the first suction pipe 601 away from the body 102 is rotatably connected to a first connecting ring 602; the first connecting ring 602 is threadedly connected to a second suction pipe 603; the end of the second suction pipe 603 away from the first suction pipe 601 is rotatably connected to a second connecting ring 604; when working, the first connecting ring 602 is rotated to make the second suction pipe 603 and the first suction pipe 601 The second connecting ring 604 is threadedly connected, and then the second connecting ring 604 is rotated to make another group of second suction pipes 603 threadedly connected to the second connecting ring 604. Through the mutual cooperation between the multiple groups of second suction pipes 603 and the second connecting ring 604, when it is necessary to expand the cotton inside the body 102, the range of the staff to extract cotton in the warehouse is extended. In this step, through the mutual cooperation between the multiple groups of second suction pipes 603 and the second connecting ring 604, the expansion range can be flexibly adjusted, so that the staff can accurately control the expansion degree of the cotton according to actual needs, so as to adapt to the needs of different warehouses or different cotton stacking conditions, thereby improving work efficiency, reducing the burden on the staff, and ensuring work efficiency. During operation, when the staff does not need to expand the cotton inside the body 102, the hand rod 702 is slid, and the second slider 701 is driven to slide inside the body 102 through the hand rod 702. When the hand rod 702 seals the hole of the first suction tube 601, the third bolt 703 is rotated so that the third bolt 703 is threadedly connected with the body 102 and the hand rod 702; in this step, by sliding the hand rod 702 and rotating the third bolt 703, the cotton expansion device is quickly closed and fixed, which reduces cotton leakage, simplifies the operation process, enhances the stability of the equipment and prolongs the service life of the equipment, which helps to improve work efficiency, reduce waste and loss, and improve the overall performance and reliability of the equipment. ;

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A cotton filling machine for pillow processing, comprising a base (101); a body (102) is fixedly connected to the upper end of the base (101); characterized in that: A servo motor (103) is fixedly connected to the inner side of the base (101); a fixed column (104) is fixedly connected to the output end of the servo motor (103); a plurality of groups of fan blades (105) are fixedly connected to the outer side of the fixed column (104); a first gear ring (106) is fixedly connected to the outer side of the fixed column (104) and located between the fan blades (105) and the servo motor (103); a first connecting column (107) is rotatably connected to the inner side of the base (101); One end of a connecting column (107) is fixedly connected to a bevel gear (108); the other end of the first connecting column (107) is fixedly connected to a fourth gear (109); the bevel gear (108) is meshingly connected to the first gear ring (106); the upper end of the base (101) is rotatably connected to the second gear ring (110); the fourth gear (109) is meshingly connected to the second gear ring (110); and the upper end of the second gear ring (110) is rotatably connected to a stirring rod (111).

2. A cotton filling machine for pillow processing according to claim 1, characterized in that: The upper end of the base (101) is fixedly connected to a third gear ring (201); the outer side of the second gear ring (110) is fixedly connected to a fifth gear (202); the fifth gear (202) is meshingly connected to the third gear ring (201); a plurality of groups of magnet rods (203) are arranged on the outer side of the second gear ring (110); one end of the magnet rod (203) is threadedly connected to the second gear ring (110).

3. The cotton filling machine for pillow processing according to claim 1, characterized in that: One end of the base (101) away from the servo motor (103) is slidably connected to a first slider (301); one end of the first slider (301) is fixedly connected to a discharge pipe (302); four end corners of the first slider (301) are rotatably connected to first bolts (303); the first slider (301) is threadedly connected to the first bolts (303).

4. The cotton filling machine for pillow processing according to claim 1, characterized in that: The inner side of the body (102) is rotatably connected to a second connecting column (403); a glass door (401) is arranged on the inner side of the second connecting column (403); the glass door (401) is rotatably connected to the body (102), and the glass door (401) is rotatably connected to the second connecting column (403); and a handle (402) is fixedly connected to the outer side of the glass door (401).

5. A cotton filling machine for pillow processing according to claim 4, characterized in that: The outer side of the glass door (401) is fixedly connected to a first fixing block (501); one side of the first fixing block (501) is fixedly connected to a connecting block (502); the outer side of the body (102) is fixedly connected to a second fixing block (503); the inner side of the second fixing block (503) is threadedly connected to a second bolt (504); and the second bolt (504) is threadedly connected to the connecting block (502).

6. The cotton filling machine for pillow processing according to claim 1, characterized in that: A first suction tube (601) is fixedly connected to the outside of the body (102); an end of the first suction tube (601) away from the body (102) is rotatably connected to a first connecting ring (602); a second suction tube (603) is threadedly connected to the first connecting ring (602); and an end of the second suction tube (603) away from the first suction tube (601) is rotatably connected to a second connecting ring (604).

7. The cotton filling machine for pillow processing according to claim 1, characterized in that: A second slider (701) is slidably connected to the inner side of the body (102); one end of the second slider (701) close to the first suction tube (601) is fixedly connected to a hand lever (702); the hand lever (702) is slidably connected to the body (102); one end of the second slider (701) is threadedly connected to a third bolt (703); the third bolt (703) is threadedly connected to the body (102).