Cotton core crushing and laying mechanism based on rotary cutting knife group and cotton laying method thereof

Abstract

The invention discloses a cotton core smashing and laying mechanism based on a rotary cutting knife set and a cotton laying method of the cotton core smashing and laying mechanism, and relates to the technical field of cotton core smashing. Lifting columns with an adjusting function are fixedly mounted on the left side and the right side of the top of the machine table through bolts; the lifting column is specifically composed of a column body, a lead screw structure and a motor, the lead screw structure and the motor are arranged in the column body in a transmission mode, a storage roller is fixedly installed on a lead screw sliding block of the lifting column, and through the collaborative design of differential cutting and air pressure instant adsorption of the cutting assembly and the cotton laying assembly, the problem of fiber winding in the cotton core smashing process is effectively solved; the efficient fine crushing is realized; and lossless conveying of the materials and dynamic and accurate adjustment of the laying thickness are completed by means of closed airflow conveying and electromagnetic regulation and control of the microporous cover.

Description

A cotton core crushing and laying mechanism based on a rotary cutting blade assembly and its cotton laying method Technical Field

[0001] This invention relates to the field of cotton wick crushing technology, specifically a cotton wick crushing and laying mechanism based on a rotary cutting blade assembly and its cotton laying method. Background Technology

[0002] In the textile, home furnishing, and composite materials industries, the crushing and uniform laying of cotton core materials is a crucial pretreatment process. However, existing solutions have significant drawbacks: First, fibers easily become entangled in the blades during rotary cutting, leading to frequent shutdowns for cleaning, resulting in low efficiency and potential damage to the blade assembly. Second, the conveying of cut materials often relies on gravity or simple airflow, which can cause material accumulation, poor conveying, and difficulty in controlling fiber morphology, affecting the quality of subsequent laying. Third, the laying process often uses fixed discharge ports or simple oscillations, which lacks sufficient control over the thickness and uniformity of the laying, making it impossible to achieve high-precision, customizable cotton laying requirements, especially in the preparation of complex gradient materials. Summary of the Invention

[0003] Therefore, in order to overcome the above-mentioned shortcomings, the present invention provides a cotton core crushing and laying mechanism based on a rotary cutting blade assembly and a cotton laying method thereof.

[0004] This invention is implemented as follows: a cotton core crushing and laying mechanism and its cotton laying method based on a rotary cutting blade assembly are constructed. The device includes a machine base; lifting columns with adjustment functions are fixedly installed on the left and right sides of the top of the machine base by bolts; the lifting column is specifically composed of a column body, a lead screw structure with transmission set inside the column body, and a motor, and a placement roller is fixedly installed on the lead screw slider of the lifting column; a cutting component and a cotton laying component are fixedly installed on the top of the machine base by bolts, and a control cabinet is fixedly installed on the side of the machine base by bolts.

[0005] Preferably, the cutting assembly includes first adjusting arms fixedly mounted on the left and right sides of the top of the machine base by bolts; a mounting frame is fixedly mounted on the front end of the first adjusting arm, and a first motor with driving function is fixedly mounted on the side of the mounting frame by bolts; a cutting blade holder is inserted and fixedly connected to the end of the transmission shaft on the side of the first motor; an adjusting blade shaft and an inner blade assembly are rotatably mounted on the side of the cutting blade holder; and a reduction gear set is inserted and fixedly connected to the side of both the adjusting blade shaft and the inner blade assembly; the reduction gear set specifically consists of a sun gear and multiple sets of planetary gears surrounding the sun gear, and a first coil bearing is provided at the center of the sun gear of the reduction gear set; the inside of the first coil bearing is rotatably connected to the transmission shaft on the side of the second motor, and the second motor is fixedly mounted on the side of the mounting frame by bolts.

[0006] Preferably, the inner blade assembly includes a second coil bearing rotatably disposed on the outside of the transmission shaft on the side of the second motor; the second coil bearing is fixedly mounted on the side of the rotating blade holder; a first guide rod is rotatably mounted on the inner side of the rotating blade holder, and a first rotary joint is inserted and fixed at the left opening of the first guide rod; the surface of the first guide rod has staggered slots, and a protrusion is fixed on the surface of the first guide rod.

[0007] Preferably, the drive shaft of the second motor is rotatably disposed inside the first coil bearing and the second coil bearing, and the opposing surfaces of the first coil bearing and the second coil bearing are provided with a partition layer that has an insulating function.

[0008] Preferably, the protrusion is specifically composed of an array of radially sharpened arc-shaped cutters, and the inner arc surface of the rotating tool holder is also provided with protrusions.

[0009] Preferably, the second coil bearing and the rotating tool holder are arranged concentrically with the sun gear of the reduction gear set; the adjusting tool shaft is arranged concentrically with the planetary gears of the reduction gear set, and the adjusting tool shaft is provided with a slot for fixing the tool.

[0010] Preferably, the cotton-laying assembly includes a second adjusting arm that is bolted to the top of the machine and has an adjusting function; an L-shaped frame is bolted to the rear end of the second adjusting arm; a third motor with a driving function is bolted to the side of the L-shaped frame, and a second guide rod is inserted and fixed to the end of the transmission shaft on the side of the third motor; a second rotary joint with a guiding function is inserted and fixed to the side of the second guide rod; and a collar assembly is fixedly installed on the top of the L-shaped frame.

[0011] Preferably, the second rotary joint on the side of the second guide rod is connected to the first rotary joint via a connecting pipe, and the first rotary joint, the second rotary joint, and the connecting pipe are also equipped with an air pump with a guiding function.

[0012] Preferably, the collar assembly includes an open ring fixedly mounted on an L-shaped frame; an inner groove is provided on the top side inside the open ring, and a coil assembly is fixedly mounted in the inner groove; a limit wire is slidably arranged inside the coil assembly, and the limit wire is slidably arranged in the inner groove of the open ring; a tension spring with a reset function is fixed to the left and right ends of the limit wire, and the tension spring is fixed to the inner groove wall of the open ring; a microporous cover with a filtering function is magnetically fixed to the outside of the limit wire.

[0013] Preferably, the coil group in the inner groove of the open ring has a figure-eight structure, and C-shaped limiting wires are provided on both the left and right sides inside the open ring and the coil group.

[0014] A cotton-laying method based on a cotton core crushing and laying mechanism using a rotary cutting blade assembly includes the following steps: Step 1, feeding and differential cutting and crushing; the cotton core roll is installed on the feeding roller, the cutting interval is adjusted by the lifting column, and then the main cutting action is performed by the second motor and the first motor in the cutting assembly (which respectively drive the main cutting action of adjusting the blade angle and adjusting the blade shaft rotation); then the differential rotation is generated by the second motor and the inner blade assembly to form efficient shearing for secondary crushing; Step 2, closed airflow conveying; the cotton core fibers after secondary crushing are conveyed through the opening groove of the first guide rod, the first rotary joint, the connecting pipe and the second rotary joint to the inside of the second guide rod at the laying end, completing the closed and continuous conveying from the cutting area to the laying area.

[0015] Step 3: Dynamic Adjustment and Uniform Laying; The fibers conveyed to the second guide rod are thrown out under its rotation. The spacing between the discharge ports and the airflow distribution are intelligently adjusted by controlling the collar assembly to achieve dynamic control of the laying thickness. Under the guidance of airflow and the uniform flow of the microporous cover, the fibers settle uniformly under the L-shaped frame and complete the uniform laying operation through the second adjusting arm.

[0016] The present invention has the following advantages: The present invention provides a cotton core crushing and laying mechanism and its laying method based on a rotary cutting blade assembly, which has the following improvements compared with similar equipment: The cotton core crushing and laying mechanism and its laying method based on a rotary cutting blade assembly of the present invention effectively solves the problem of fiber entanglement during cotton core crushing by setting a synergistic design of differential cutting and instant air pressure adsorption of the cutting component and the laying component, and achieves efficient and fine crushing; and with the help of closed airflow conveying and electromagnetically controlled microporous cover, it completes the non-destructive conveying of materials and the dynamic and precise adjustment of the laying thickness. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the structure of the present invention; Figure 2 is an exploded schematic diagram of the cutting component of the present invention; Figure 3 is an exploded schematic diagram of the inner knife component of the present invention; Figure 4 is a schematic diagram of the axial structure of the cotton spreading component of the present invention; Figure 5 is a schematic diagram of the axial structure of the collar component of the present invention; Figure 6 is an enlarged schematic diagram of point A in Figure 5 of the present invention.

[0018] The components include: machine base-1, lifting column-2, cutting assembly-3, placement roller-4, cotton spreading assembly-5, control cabinet-6, first adjusting arm-31, mounting frame-32, first motor-33, cutting blade holder-34, adjusting blade shaft-35, inner blade assembly-36, reduction gear set-37, first coil bearing-38, second motor-39, second coil bearing-361, rotating blade holder-362, first guide rod-363, first rotary joint-364, opening slot-365, protrusion-366, second adjusting arm-51, L-shaped frame-52, third motor-53, second guide rod-54, second rotary joint-55, collar assembly-56, opening ring-561, coil group-562, limiting wire-563, tension spring-564, and microporous cover-565. Detailed Implementation

[0019] The principles and features of the present invention are described below with reference to Figures 1 to 6. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure. Embodiment 1:

[0022] Please refer to Figures 1 to 6. The present invention discloses a cotton core crushing and laying mechanism and its cotton laying method based on a rotary cutting blade assembly, comprising a machine base 1; lifting columns 2 with adjustable functions are fixedly installed on the left and right sides of the top of the machine base 1 by bolts; the lifting column 2 is specifically composed of a column body, a screw structure with transmission set inside the column body, and a motor, and a placement roller 4 is fixedly installed on the screw slider of the lifting column 2; a cutting assembly 3 and a cotton laying assembly 5 are fixedly installed on the top of the machine base 1 by bolts, and a control cabinet 6 is fixedly installed on the side of the machine base 1 by bolts.

[0023] The cutting assembly 3 includes a first adjusting arm 31 fixedly mounted on the left and right sides of the top of the machine base 1 by bolts; a mounting bracket 32 ​​is fixedly mounted on the front end of the first adjusting arm 31, and a first motor 33 with driving function is fixedly mounted on the side of the mounting bracket 32 ​​by bolts; a cutting blade holder 34 is inserted and fixedly connected to the end of the transmission shaft on the side of the first motor 33; an adjusting blade shaft 35 and an inner blade assembly 36 are rotatably mounted on the side of the cutting blade holder 34; and a reduction gear set 37 is inserted and fixedly connected to the side of both the adjusting blade shaft 35 and the inner blade assembly 36; the reduction gear set 37 is specifically composed of a sun gear and multiple sets of planetary gears surrounding the sun gear, and a first coil bearing 38 is provided at the center of the sun gear of the reduction gear set 37; the first coil bearing 38 is rotatably connected to the transmission shaft on the side of the second motor 39, and the second motor 39 is fixedly mounted on the side of the mounting bracket 32 ​​by bolts.

[0024] The inner blade assembly 36 includes a second coil bearing 361 rotatably disposed on the outside of the transmission shaft on the side of the second motor 39; the second coil bearing 361 is fixedly mounted on the side of the rotating blade holder 362; a first guide rod 363 is rotatably mounted on the inner side of the rotating blade holder 362, and a first rotary joint 364 is inserted and fixed at the opening on the left side of the first guide rod 363; the surface of the first guide rod 363 has staggered opening slots 365, and a protrusion 366 is fixed on the surface of the first guide rod 363.

[0025] The drive shafts of the second motor 39 are rotatably mounted inside the first coil bearing 38 and the second coil bearing 361, respectively, and the opposing surfaces of the first coil bearing 38 and the second coil bearing 361 are provided with a partition layer that has an insulating function; the protrusion 366 is specifically composed of an array of radially sharpened arc-shaped cutters, and the inner arc surface of the rotating tool holder 362 is also provided with a protrusion 366; the second coil bearing 361 and the rotating tool holder 362 are arranged concentrically with the sun gear of the reduction gear set 37; the adjusting tool shaft 35 is arranged concentrically with the planetary gears of the reduction gear set 37, and the adjusting tool shaft 35 has a slot for fixing the cutter. Example 2:

[0026] Please refer to Figures 1-6. The present invention provides a cotton core crushing and laying mechanism and its cotton laying method based on a rotary cutting blade assembly. Compared to Embodiment 1, this embodiment further includes: a cotton laying assembly 5 comprising a second adjusting arm 51 fixedly mounted on the top of the machine base 1 by bolts and having an adjusting function; an L-shaped frame 52 fixedly mounted on the rear end of the second adjusting arm 51 by bolts; a third motor 53 having a driving function fixedly mounted on the side of the L-shaped frame 52 by bolts, and a second guide rod 54 inserted and fixedly connected to the end of the transmission shaft on the side of the third motor 53; a second rotary joint 55 having a guiding function inserted and fixedly connected to the side of the second guide rod 54; and a collar assembly 56 fixedly mounted on the top of the L-shaped frame 52.

[0027] The second rotary joint 55 on the side of the second guide rod 54 is connected to the first rotary joint 364 via a connecting pipe, and the first rotary joint 364, the second rotary joint 55, and the connecting pipe are also equipped with an air pump with a guiding function.

[0028] The collar assembly 56 includes an open ring 561 fixedly mounted on an L-shaped frame 52; an inner groove is provided on the top side inside the open ring 561, and a coil assembly 562 is fixedly mounted in the inner groove; a limit wire 563 is slidably provided inside the coil assembly 562, and the limit wire 563 is slidably positioned in the inner groove of the open ring 561; a tension spring 564 with a reset function is fixed to the left and right ends of the limit wire 563, and the tension spring 564 is fixed to the inner groove wall of the open ring 561; a microporous cover 565 with a filtering function is magnetically fixed to the outside of the limit wire 563.

[0029] The coil group 562 in the inner groove of the open ring 561 has a figure-eight structure, and C-shaped limiting wires 563 are provided on both the left and right sides of the open ring 561 and the coil group 562.

[0030] The working principle of the cotton core crushing and laying mechanism and its cotton laying method based on the above-mentioned rotary cutting blade assembly is as follows: First, when using this equipment, place it in the working area and connect it to an external power source to provide the necessary power for operation. Second, the cotton core is first fed by the placement roller 4, and then the distance between the cutting assembly 3 and the cotton core is adjusted by the lifting action of the lifting column 2. Then, the control cabinet 6 controls the second motor 39 to drive the reduction gear set 37 to perform a reduction transmission action while synchronously energizing the first coil bearing 38, thereby driving multiple sets of adjusting blade shafts 35 to rotate synchronously to adjust the blade angle, thus changing the... The cutting angle of the blade is adjusted; then, by controlling the first motor 33 to drive the cutting blade holder 34 and the adjusting blade shaft 35 to rotate, and under the adjustment action of the lifting column 2, a directional and quantitative rotary cutting action of the cotton core is achieved. Here, by controlling the second motor 39 and the second coil bearing 361 to work simultaneously, the cutting blade holder 34, the rotating blade holder 362, and the first guide rod 363 achieve differential rotation. The air pump set on the side of the first rotary joint 364 forms a relatively low-pressure air environment around the rotating blade holder 362 and the first guide rod 363, so that the small pieces of cotton core after cutting are affected by the air pressure and enter the interior of the rotating blade holder 362. Here, the rotating blade... The protrusions 366 on the inner wall of the frame 362 and the surface of the rotating blade holder 362 further cut and pulverize the small pieces of cotton core. The cotton core material, after being cut a second time, enters the first guide rod 363 through the opening slot 365 due to air pressure, and is then transported to the second rotating joint 55 and the interior of the second guide rod 54 via the first rotating joint 364 and related connecting pipes on its side. Thirdly, the second guide rod 54 is rotated by the third motor 53. An air pump draws air in from the first guide rod 363, passes through the first rotating joint 364 and the second rotating joint 55, and then blows it out from the second guide rod 54, thus causing the cotton core material to be pulverized during rotation. The cotton core fragments are blown out by the airflow and gather inside the microporous cover 565. Here, the energization of the coil group 562 can be controlled. When the cotton core fragments partially block the microporous cover 565, the distance between the limiting wire 563 and the microporous cover 565 can be adjusted under the influence of the airflow. The adjustable structure can change the thickness of the cotton core fragments. Then, under the rotation of the second guide rod 54 and the airflow guidance, the cotton core fragments gathered inside the microporous cover 565 are blocked by the L-shaped frame 52 and fall below the L-shaped frame 52. Then, the cotton core fragments are laid out under the adjustment action of the second adjusting arm 51.

[0031] This invention provides an improved cotton core crushing and laying mechanism and its laying method based on a rotary cutting blade assembly. By setting up a synergistic design of differential cutting of the cutting component 3 and the laying component 5 and instant air pressure adsorption, the problem of fiber entanglement during cotton core crushing is effectively solved, achieving efficient and fine crushing. Furthermore, with the help of a closed airflow conveying system and an electromagnetically controlled microporous cover, the lossless conveying of materials and the dynamic and precise adjustment of the laying thickness are achieved.

[0032] The above description shows and illustrates the basic principles, main features, and advantages of the present invention. Standard parts used in the present invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cotton core crushing and laying mechanism based on a rotary cutting blade assembly, comprising a machine base (1); the machine base (1) has adjustable lifting columns (2) fixedly installed on both the left and right sides of its top by bolts; the lifting column (2) is specifically composed of a column body, a screw structure with transmission inside the column body, and a motor, and a placement roller (4) is fixedly installed on the screw slider of the lifting column (2); a cutting assembly (3) and a cotton laying assembly (5) are fixedly installed on the top of the machine base (1) by bolts, and a control cabinet (6) is fixedly installed on the side of the machine base (1) by bolts; characterized in that: The cutting assembly (3) includes a first adjusting arm (31) fixedly mounted on the left and right sides of the top of the machine base (1) by bolts; a mounting frame (32) is fixedly mounted on the front end of the first adjusting arm (31), and a first motor (33) with driving function is fixedly mounted on the side of the mounting frame (32) by bolts; a cutting blade holder (34) is inserted and fixedly connected to the end of the transmission shaft on the side of the first motor (33); an adjusting blade shaft (35) and an inner blade assembly (36) are rotatably mounted on the side of the cutting blade holder (34); and a reduction gear set (37) is inserted and fixedly connected to the side of both the adjusting blade shaft (35) and the inner blade assembly (36); the reduction gear set (37) is specifically composed of a sun gear and multiple sets of planetary gears surrounding the sun gear, and a first coil bearing (38) is provided at the center of the sun gear of the reduction gear set (37); the inside of the first coil bearing (38) is rotatably connected to the transmission shaft on the side of the second motor (39), and the second motor (39) is fixedly mounted on the side of the mounting frame (32) by bolts.

2. The cotton wick crushing and laying mechanism based on a rotary cutting blade assembly according to claim 1, characterized in that: The inner blade assembly (36) includes a second coil bearing (361) rotatably disposed on the outside of the transmission shaft on the side of the second motor (39); the second coil bearing (361) is fixedly mounted on the side of the rotating blade holder (362); a first guide rod (363) is rotatably mounted on the inside of the rotating blade holder (362), and a first rotary joint (364) is inserted and fixed at the opening on the left side of the first guide rod (363); the surface of the first guide rod (363) has staggered opening slots (365), and a protrusion (366) is fixed on the surface of the first guide rod (363).

3. The cotton wick crushing and laying mechanism based on a rotary cutting blade assembly according to claim 2, characterized in that: The drive shaft of the second motor (39) is rotatably disposed inside the first coil bearing (38) and the second coil bearing (361), and the opposing surfaces of the first coil bearing (38) and the second coil bearing (361) are provided with a partition layer that has an insulating function.

4. The cotton wick crushing and laying mechanism based on a rotary cutting blade assembly according to claim 3, characterized in that: The protrusion (366) is specifically composed of an array of radially sharpened arc-shaped tools, and the inner arc surface of the rotating tool holder (362) is also provided with a protrusion (366).

5. The cotton core crushing and laying mechanism based on a rotary cutting blade assembly according to claim 4, characterized in that: The second coil bearing (361) and the rotating tool holder (362) are arranged concentrically with the sun gear of the reduction gear set (37); the adjusting tool shaft (35) is arranged concentrically with the planet gear of the reduction gear set (37), and the adjusting tool shaft (35) is provided with a slot for fixing the tool.

6. The cotton core crushing and laying mechanism based on a rotary cutting blade assembly according to claim 5, characterized in that: The cotton-laying assembly (5) includes a second adjusting arm (51) that is fixedly installed on the top of the machine base (1) by bolts and has an adjusting function; an L-shaped frame (52) is fixedly installed on the rear end of the second adjusting arm (51) by bolts; a third motor (53) that has a driving function is fixedly installed on the side of the L-shaped frame (52) by bolts, and a second guide rod (54) is inserted and fixedly connected to the end of the transmission shaft on the side of the third motor (53); a second rotary joint (55) that has a guiding function is inserted and fixedly connected to the side of the second guide rod (54); and a collar assembly (56) is fixedly installed on the top of the L-shaped frame (52).

7. The cotton wick crushing and laying mechanism based on a rotary cutting blade assembly according to claim 6, characterized in that: The second rotary joint (55) on the side of the second guide rod (54) is connected to the first rotary joint (364) via a connecting pipe, and the first rotary joint (364), the second rotary joint (55) and the connecting pipe are also equipped with an air pump with a guiding function.

8. The cotton core crushing and laying mechanism based on a rotary cutting blade assembly according to claim 7, characterized in that: The collar assembly (56) includes an open ring (561) fixedly mounted on an L-shaped frame (52); an inner groove is provided on the top side inside the open ring (561), and a coil assembly (562) is fixedly mounted in the inner groove; a limiting wire (563) is slidably provided on the inner side of the coil assembly (562), and the limiting wire (563) is slidably provided in the inner groove of the open ring (561); a tension spring (564) with a reset function is fixedly mounted on the left and right ends of the limiting wire (563), and the tension spring (564) is fixed on the inner groove wall of the open ring (561); a microporous cover (565) with a filtering function is magnetically fixedly mounted on the outside of the limiting wire (563).

9. The cotton core crushing and laying mechanism based on a rotary cutting blade assembly according to claim 8, characterized in that: The coil group (562) in the inner groove of the open ring (561) has a figure-eight structure, and the left and right sides of the open ring (561) and the coil group (562) are provided with C-shaped limiting wires (563).

10. A cotton-laying method based on a cotton wick crushing and laying mechanism using a rotary cutting blade assembly, for implementing the cotton wick crushing and laying mechanism based on a rotary cutting blade assembly as described in claim 9, characterized in that: The process includes the following steps: Step 1, feeding and differential cutting and crushing; the cotton core roll is installed on the placement roller (4) for feeding, the cutting spacing is adjusted by the lifting column (2), and then the main cutting action is performed by the second motor (39) and the first motor (33) in the cutting assembly (3) respectively driving the main cutting action of adjusting the cutter angle and adjusting the rotation of the cutter shaft (35); then the differential rotation is generated by the second motor (39) and the inner blade assembly (36) to form high-efficiency shearing and secondary crushing; Step 2, closed airflow conveying; the cotton core fiber after secondary crushing passes through the opening groove (365) of the first guide rod (363) and the first rotating The connector (364), connecting pipe and second rotary connector (55) are transported to the second guide rod (54) at the laying end to complete the closed and continuous transmission from the cutting area to the laying area; Step 3, dynamic adjustment and uniform laying; The fibers transported to the second guide rod (54) are thrown out under its rotation. The spacing between the discharge ports and the airflow distribution are intelligently adjusted by the control ring assembly (56) to achieve dynamic control of the laying thickness. Under the guidance of airflow and the uniform flow of the microporous cover (565), the fibers settle uniformly under the L-shaped frame (52) and complete the uniform cotton laying operation through the second adjusting arm (51).

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