Melt-blown PET cotton production equipment and production method thereof

Abstract

The invention discloses melt-blown PET cotton production equipment and a production method thereof.The melt-blown PET cotton production equipment comprises a PET carding mechanism, an inclined conveying mechanism, a PET discharging opening, a suction roller mechanism, a spraying assembly, a cloth covering mechanism, a heating roller structure, a cutting mechanism and a compound cloth winding device, the PET discharging opening is located in one side of the suction roller mechanism, and the spraying assembly is installed above the suction roller mechanism; the suction roller mechanism conveys materials to the cloth covering mechanism for cloth covering operation, and a heating roller structure is installed on one side of the cloth covering mechanism. A closed-loop adjusting system in which the gas flow detection assembly and the supplementary spraying assembly are linked is arranged, the gas flow detection assembly monitors the gas flow during fiber transmission in real time, and the gas flow detection assembly monitors the gas flow during fiber transmission in real time; the thickness of the fiber layer is fed back to the control mechanism to judge the thickness of the fiber layer, the non-uniform area is subjected to supplementary spraying through the supplementary spraying assembly, it is ensured that the fiber layer is uniform, and the structure further has the effects of reducing the production waste rate and reducing the manual adjustment cost.

Description

Technical Field

[0001] This invention relates to the field of PET cotton technology, specifically to a meltblown PET cotton production equipment and its production method. Background Technology

[0002] In the PET cotton production field, meltblown technology is widely used because it can produce fine denier fibers. However, traditional production equipment has shortcomings in controlling material uniformity. Existing technologies lack real-time dynamic adjustment mechanisms, making it easy for fluctuations in raw material properties or changes in equipment operating parameters to lead to problems such as uneven fiber layer thickness and large density differences. For example, in traditional meltblown equipment, if the molten state of PET particles is unstable or the conveying air volume fluctuates during the spinning process, it will directly cause uneven spinning volume. When the melt index of PET particles fluctuates by more than ±3%, the fiber layer thickness deviation rate exceeds 15%, and subsequent processes cannot replenish the missing material in localized areas. Ultimately, this results in fluctuations in key properties of PET cotton products such as filtration efficiency and tensile strength. Therefore, a meltblown PET cotton production equipment and its production method are proposed. Summary of the Invention

[0003] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. It primarily offers a meltblown PET cotton production equipment and method to solve the technical problem mentioned in the background section: if the PET particles are in an unstable melting state or the conveying air volume fluctuates during the spinning process, it will directly cause uneven spinning volume, and subsequent processes will be unable to re-spin the localized areas lacking material.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A meltblown PET cotton production equipment includes a PET carding mechanism, and further includes: an inclined conveying mechanism at the output end of the PET carding mechanism for conveying the material processed by the PET carding mechanism to a PET outlet; a PET outlet on one side of the PET carding mechanism for discharging the material conveyed by the inclined conveying mechanism to a suction roller mechanism; a suction roller mechanism on one side of the PET outlet for sucking and conveying the material; a spraying assembly above the suction roller mechanism for spinning molten PET particles into fibers and covering the material surface; a covering mechanism at the output end of the suction roller mechanism for receiving the conveyed material and performing upper and lower surface covering operations; a heating roller structure on one side of the covering mechanism for heating and shaping the covered material; a cutting mechanism on one side of the heating roller structure for cutting the shaped PET cotton to a preset size; and a covering and winding device at the output end of the cutting mechanism for winding the cut PET cotton.

[0005] Preferably, the PET carding mechanism includes a first carding mechanism, which conveys PET fibers to a second carding mechanism through a conveying pipe, and the second carding mechanism conveys the material to the inside of the PET outlet through an inclined conveying mechanism.

[0006] Preferably, the suction roller mechanism includes a first roller body, a second roller body, and a third roller mechanism, and the first roller body, the second roller body, and the third roller mechanism are provided with a plurality of gas passage holes. Filter screens are installed on the outside of the first roller body, the second roller body, and the third roller mechanism. The spray assembly is installed on the upper side of the third roller mechanism. The first roller body and the second roller body are driven to rotate in opposite directions by an external drive device. A first suction assembly for directional air suction is installed inside the first roller body and the second roller body. The first suction assembly cooperates with the gas passage holes to suck and transfer material from the first roller body to the second roller body.

[0007] Preferably, a second suction component for directional air intake is installed inside the third roller mechanism, and a gas flow detection component is installed inside the third roller mechanism on the suction side of the second suction component. The gas flow detection component is connected to an external control mechanism, and the external control mechanism can control the supplementary spray component set on one side of the third roller mechanism to perform spraying operation.

[0008] Preferably, the supplementary spraying assembly includes a first spraying head, and the first spraying head is connected to the spraying assembly via a spraying connecting pipe.

[0009] Preferably, a roller brush assembly for use with the third roller mechanism is provided on the outer side of the roller mechanism, and a collection cylinder is installed below the roller brush assembly. A cleaning plate for cleaning the brush head of the roller brush assembly is provided on the upper side of the collection cylinder.

[0010] Preferably, the roller brush assembly and the third roller mechanism are driven to rotate by a drive assembly, which includes a drive motor that can drive a first gear to rotate. The first gear meshes with a gear ring, which is mounted on the outside of a rotating column. The rotating column can drive the third roller mechanism to rotate synchronously. The gear ring meshes with a second gear, which is mounted on the outside of a rotating rod. The rotating rod can drive the roller brush assembly to rotate synchronously.

[0011] Preferably, the spraying assembly includes a second spraying die, which is used to perform fiber spinning operation on molten PET particles in the meltblown equipment. The meltblown equipment draws external PET particles into the interior of the meltblown equipment through a suction pipe.

[0012] A method for producing meltblown PET cotton using a specific equipment, the method comprising the following steps: Step 1: Start the PET carding mechanism. The first carding mechanism cardes the PET fibers, breaks them up and removes impurities. The carded PET fibers are then conveyed through the conveyor pipe to the second carding mechanism for secondary carding to form a fiber layer. The material processed by the second carding mechanism is conveyed by the inclined conveyor mechanism to the inside of the PET outlet to prepare for subsequent melt spinning. Step 2: Start the spraying assembly, draw in external PET particles through the meltblown equipment and heat them to melt. The molten PET particles are then spun into fibers through the second spraying die, forming a fine stream of PET fibers that is sprayed onto the top of the third roller mechanism. Step 3: The suction roller mechanism is started. The third roller mechanism rotates under the action of the drive component. The second suction component draws in air through the gas through the gas vent. The material discharged from the PET outlet and the outer layer of sprayed fiber are drawn into the third roller mechanism and then transferred to the second roller body and the first roller body in sequence. The gas flow detection component in the third roller mechanism monitors the gas flow during fiber transfer in real time and feeds the data back to the external control mechanism. The control mechanism judges the fiber layer thickness based on the flow data. If there is an uneven area, the first spraying head of the drive spraying component sprays the fiber layer on the outside of the material. The drive motor drives the third roller mechanism to rotate and can also drive the rotating rod to drive the roller brush assembly to rotate, cleaning the fiber residue on the surface of the third roller mechanism. Step 4: The fiber layer processed by the third roller mechanism, including the fibers sprayed from the outside, is conveyed to the covering mechanism for covering the upper and lower surfaces, forming a composite structure of "covering-fiber layer-covering". Step 5: The shaped PET cotton is cut horizontally and vertically according to the preset size by the cutting mechanism to form standardized products. The cut PET cotton is then wound up by the fabric winding device. During the winding process, tension control is used to ensure that the roll is flat, thus completing the finished product production.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention includes a closed-loop control system that links a gas flow detection component and a supplementary spraying component. The gas flow detection component monitors the gas flow during fiber transport in real time and feeds it back to the control mechanism to determine the fiber layer thickness. For uneven areas, supplementary spraying is performed by the supplementary spraying component to ensure the uniformity of the fiber layer. In addition, the above structure also has the effect of reducing production waste rate and reducing manual adjustment costs. By replacing manual experience operation with automated dynamic supplementary spraying, it can adapt to the spinning requirements of PET particles in different molten states.

[0014] The invention also includes a drive assembly that can simultaneously drive the third roller mechanism and the roller brush assembly to rotate. The roller brush assembly, together with the collection cylinder and the cleaning plate, can promptly clean the fiber residue on the surface of the third roller mechanism, keep the equipment clean, reduce detection errors caused by fiber accumulation, extend the service life of the equipment, and improve detection accuracy.

[0015] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the suction roller mechanism of the present invention; Figure 3 This is a schematic diagram of the driving component structure of the present invention.

[0017] Numbering on the map: 1. PET combing mechanism; 101. First combing mechanism; 102. Conveying pipe; 103. Second combing mechanism; 2. Inclined conveying mechanism; 3. PET discharge port; 4. Suction roller mechanism; 401. First roller body; 402. Second roller body; 403. Third roller mechanism; 4031. First suction assembly; 404. Second suction assembly; 405. Gas flow detection assembly; 5. Spray assembly; 501. Second spraying die; 502. Meltblown equipment; 6. Fabric covering mechanism; 7. Heated roller structure; 8. Cutting mechanism; 9. Fabric covering and winding device; 10. Re-spraying assembly; 11. Roller brush assembly; 12. Collection cylinder; 13. Drive assembly; 131. Drive motor; 132. First gear; 133. Rotating column; 134. Second gear. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] Please refer to the appendix carefully. Figure 1-3 A meltblown PET cotton production equipment includes a PET carding mechanism 1, an inclined conveying mechanism 2, a PET discharge port 3, a suction roller mechanism 4, a spraying assembly 5, a covering mechanism 6, a heating roller structure 7, a cutting mechanism 8, and a covering and winding device 9.

[0022] The PET carding mechanism 1 includes a first carding mechanism 101 for initial opening of PET fibers. A hopper for supplying PET fibers is installed on one side of the first carding mechanism 101. The first carding mechanism 101 includes carding teeth, a vibrating screen, and a conveyor belt. The above structure is prior art and will not be described in detail. The first carding mechanism 101 conveys PET fibers to the second carding mechanism 103 through a conveying pipe 102. The conveying pipe 102 includes a pipe and a conveying fan. The conveying fan generates airflow to convey the PET fibers. The second carding mechanism 103 can card the initially opened PET fibers again to form two sets of PET fiber layered structures. The second carding mechanism 103 includes a carding tooth assembly, a fiber guiding device, a vibrating screen assembly, and a conveying mechanism used in conjunction with the inclined conveying mechanism 2. The above structure is prior art and will not be described in detail. The second carding mechanism 103 conveys the material to the inside of the PET discharge port 3 through the inclined conveying mechanism 2.

[0023] The PET outlet 3 is located on one side of the suction roller mechanism 4. The inclined conveying mechanism 2 conveys two sets of PET fiber layered structures into the PET outlet 3 and through the PET outlet 3 to the outside of the suction roller mechanism 4. The spraying assembly 5 is installed above the suction roller mechanism 4.

[0024] The suction roller mechanism 4 includes a first roller body 401, a second roller body 402, and a third roller mechanism 403. Several sets of gas passages are provided on the first roller body 401, the second roller body 402, and the third roller mechanism 403. Filter screens for filtering fibers are installed on the outside of the first roller body 401, the second roller body 402, and the third roller mechanism 403 to prevent fibers from entering the roller body. The first roller body 401 and the second roller body 402 are driven to rotate in opposite directions by an external drive device, which can be a motor. All three roller bodies are single-sided opening structures. A first suction component 4031 for directional air suction is installed inside the first roller body 401 and the second roller body 402. The first suction component 4031, in conjunction with the gas passages, can suction and transfer material from the first roller body 401 to the second roller body 402.

[0025] The third roller mechanism 403 is equipped with a second suction assembly 404 for directional suction. The first suction assembly 4031 and the second suction assembly 404 can be suction pipes with directional suction ports to achieve directional suction. Both the first suction assembly 4031 and the second suction assembly 404 are connected to an external suction system. Both the first suction assembly 4031 and the second suction assembly 404 are equipped with matching flow control valves to control the suction force. The outer side of the third roller mechanism 403 is provided with an arc-shaped scraper for scraping off the conveyed material, so that the conveyed material falls accurately above the second roller body 402.

[0026] A gas flow detection component 405 is installed inside the third roller mechanism 403 on the suction side of the second suction component 404. The gas flow detection component 405 can be a gas flow meter. The gas flow detection component 405 is connected to an external control mechanism, which can control the supplementary spray component 10 set on one side of the third roller mechanism 403 to perform spraying operations. The supplementary spray component 10 includes a first spray head, which is connected to the spray component 5 through a spray connecting pipe. The gas flow detection component 405 monitors the gas flow during fiber transmission in real time and feeds the data back to the external control mechanism to determine whether the fiber layer thickness is uniform. (Based on fluid mechanics and fiber deposition theory, the following preliminary model can be established: T=K1⋅(ρ⋅v⋅(1−ϵ)Q)K2, where Q: gas flow rate (unit: cubic meters / second), T: fiber layer thickness (unit: millimeters), ρ: fiber density (unit: kilograms / cubic meter), ε: fiber layer porosity (dimensionless), v: Airflow velocity (unit: m / s), K1, K2: obtained by fitting experimental data). When the fiber layer thickness is low, the gas flow detection component 405 detects an increase in gas flow. When an uneven area is detected, the control mechanism drives the first spraying die of the supplementary spraying component 10 to supplement the fiber layer on the outside of the material, ensuring that the fiber layer thickness is consistent and improving the uniformity and quality stability of PET cotton. The first spraying die is connected to the spraying component 5 through the spraying connection pipe, sharing the spinning system of molten PET particles. There is no need to set up an additional independent spinning device, reducing equipment costs and space occupation, and simplifying the production process.

[0027] A roller brush assembly 11 is provided on one side of the third roller mechanism 403 for use with it, and a collection cylinder 12 is installed below the roller brush assembly 11. A cleaning plate for cleaning the brush head of the roller brush assembly 11 is provided on the upper side of the collection cylinder 12. The roller brush assembly 11 and the third roller mechanism 403 are driven to rotate by a drive assembly 13. The drive assembly 13 includes a drive motor 131, which can drive a first gear 132 to rotate. The first gear 132 meshes with a gear ring, which is installed on the outside of a rotating column 133. The rotating column 133 can drive the third roller mechanism 403 to rotate synchronously. The gear ring meshes with a second gear 134, which is installed on the outside of a rotating rod. The rotating rod can drive the roller brush assembly 11 to rotate synchronously. The roller brush assembly 11 rotates synchronously. The drive assembly 13 drives the first gear 132 to rotate via the drive motor 131. The first gear 132 drives the rotating column 133 and the third roller mechanism 403 to rotate via the gear ring. At the same time, the gear ring meshes with the second gear 134 to drive the roller brush assembly 11 to rotate, realizing synchronous drive of a single motor and two components, reducing the number of motors and energy consumption. The roller brush assembly 11 continuously brushes away the fiber residue attached to the surface of the third roller mechanism 403, avoiding fiber accumulation that affects the roller suction efficiency and fiber transmission stability. The cleaning plate contacts the brush head in the roller brush assembly 11 and scrapes off the fibers adhering to the outside of the brush head. The scraped fibers fall directly into the collection cylinder 12 below, reducing the frequency of manual intervention and improving production efficiency.

[0028] The spraying assembly 5 is installed on the upper side of the third roller mechanism 403. The spraying assembly 5 includes a second spraying die 501, which is used to spin fibers from molten PET particles in the meltblown equipment 502. The meltblown equipment 502 draws external PET particles into its interior through a suction pipe. The second spraying die 501 works in conjunction with the meltblown equipment 502 to heat and melt the PET particles and then spray out fine fiber streams, which cover the outside of the PET fiber layer conveyed by the third roller mechanism 403, forming a composite structure of "original fiber layer + melt-spun fiber layer". The melt-spun fibers have a fine diameter and good uniformity, which can fill the pores of the original fiber layer and improve the density, softness and heat insulation of the PET cotton.

[0029] The suction roller mechanism 4 conveys the spun PET cotton to the covering mechanism 6 for covering operation. The covering mechanism 6 is equipped with a heating roller structure 7 for heating the PET cotton. The heated PET cotton is cut by the cutting mechanism 8. The covering and winding device 9 can wind up the cut PET cotton.

[0030] A method for producing meltblown PET cotton, the method specifically includes the following steps: Step 1: Start the PET carding mechanism 1. The PET fibers are carded by the first carding mechanism 101 to break them apart and remove impurities. The carded PET fibers are then conveyed through the conveying pipe 102 to the second carding mechanism 103 for secondary carding to form a fiber layer. The material processed by the second carding mechanism 103 is conveyed by the inclined conveying mechanism 2 to the inside of the PET outlet 3 to prepare for subsequent melt spinning. Step 2: Start the spraying assembly 5, draw in external PET particles through the meltblown equipment 502 and heat them to melt. The molten PET particles are then spun into fibers through the second spraying die 501 to form a fine PET fiber stream, which is then sprayed onto the third roller mechanism 403. Step 3: The suction roller mechanism 4 is started, and the third roller mechanism 403 rotates under the action of the drive component 13. The second suction component 404 draws air in a directional manner through the gas passage. The material discharged from the PET outlet 3 and the outer layer sprayed fiber filaments are drawn into the third roller mechanism 403, and then sequentially transferred to the second roller body 402 and the first roller body 401. The gas flow detection component 405 in the third roller mechanism 403 monitors the gas flow during fiber transmission in real time and feeds the data back to the external control mechanism. The control mechanism judges the fiber layer thickness based on the flow data. If there is an uneven area, the first spraying die head of the spraying component 10 is driven to spray the fiber layer on the outside of the material. At the same time, the drive motor 131 drives the third roller mechanism 403 to rotate and can also drive the rotating rod to drive the roller brush component 11 to rotate, cleaning the fiber residue on the surface of the third roller mechanism 403. Step 4: The fiber layer processed by the third roller mechanism 403, including the fibers sprayed from the outside, is conveyed to the covering mechanism 6 for covering the upper and lower surfaces, forming a composite structure of "covering-fiber layer-covering". Step 5: The shaped PET cotton is cut horizontally and vertically according to the preset size by the cutting mechanism 8 to form standardized products. The cut PET cotton is then wound up by the fabric winding device 9. During the winding process, tension control is used to ensure that the roll is flat, thus completing the finished product production.

[0031] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A meltblown PET cotton production equipment, characterized in that: Including a PET combing mechanism (1), characterized in that it further includes: Inclined conveying mechanism (2), located at the output end of PET combing mechanism (1), is used to convey the material processed by PET combing mechanism (1) to PET outlet (3). PET outlet (3), located on one side of PET combing mechanism (1), is used to discharge the material conveyed by inclined conveying mechanism (2) to suction roller mechanism (4). The suction roller mechanism (4) is located on one side of the PET outlet (3) and is used to suction and transport materials; The spraying assembly (5), located above the suction roller mechanism (4), is used to spin fibers from molten PET particles and cover the material surface. The covering mechanism (6) is located at the output end of the suction roller mechanism (4) and is used to receive the transmitted material and perform the covering operation on the upper and lower surfaces. The heating roller structure (7) is located on one side of the covering mechanism (6) and is used to heat and shape the material after covering. The cutting mechanism (8), located on one side of the heating roller structure (7), is used to cut the shaped PET cotton according to a preset size; The fabric winding device (9) is located at the output end of the cutting mechanism (8) and is used to wind up the cut PET cotton.

2. The meltblown PET cotton production equipment according to claim 1, characterized in that: The PET combing mechanism (1) includes a first combing mechanism (101), which transports PET fibers to a second combing mechanism (103) through a conveying pipe (102), and the second combing mechanism (103) transports the material to the inside of the PET outlet (3) through an inclined conveying mechanism (2).

3. The meltblown PET cotton production equipment according to claim 1, characterized in that: The suction roller mechanism (4) includes a first roller body (401), a second roller body (402), and a third roller mechanism (403). Several sets of gas passage holes are provided on the first roller body (401), the second roller body (402), and the third roller mechanism (403). Filter screens are installed on the outside of the first roller body (401), the second roller body (402), and the third roller mechanism (403). The spray assembly (5) is installed on the upper side of the third roller mechanism (403). The first roller body (401) and the second roller body (402) are driven to rotate in opposite directions by an external drive device. The first roller body (401) and the second roller body (402) are equipped with a first suction assembly (4031) for directional air suction. The first suction assembly (4031) cooperates with the gas passage holes to suck and transfer materials from the first roller body (401) to the second roller body (402).

4. The meltblown PET cotton production equipment according to claim 3, characterized in that: The third roller mechanism (403) is equipped with a second suction component (404) for directional air intake, and a gas flow detection component (405) is installed inside the third roller mechanism (403) on the suction side of the second suction component (404). The gas flow detection component (405) is connected to an external control mechanism, and the external control mechanism can control the supplementary spray component (10) set on one side of the third roller mechanism (403) to perform spraying operation.

5. The meltblown PET cotton production equipment according to claim 4, characterized in that: The supplementary spraying assembly (10) includes a first spraying head, and the first spraying head is connected to the spraying assembly (5) through a spraying connecting pipe.

6. The meltblown PET cotton production equipment according to claim 3, characterized in that: The third roller mechanism (403) is provided with a roller brush assembly (11) for use with it on one side of the outside, and a collection cylinder (12) is installed below the roller brush assembly (11). A cleaning plate for cleaning the brush head of the roller brush assembly (11) is provided on the upper side of the collection cylinder (12).

7. The meltblown PET cotton production equipment according to claim 6, characterized in that: The roller brush assembly (11) and the third roller mechanism (403) are driven to rotate by a drive assembly (13). The drive assembly (13) includes a drive motor (131), which can drive a first gear (132) to rotate. The first gear (132) meshes with a gear ring, which is mounted on the outside of a rotating column (133). The rotating column (133) can drive the third roller mechanism (403) to rotate synchronously. The gear ring meshes with a second gear (134), which is mounted on the outside of a rotating rod. The rotating rod can drive the roller brush assembly (11) to rotate synchronously.

8. The meltblown PET cotton production equipment according to claim 1, characterized in that: The spraying assembly (5) includes a second spraying die (501), and the second spraying die (501) is used to perform fiber spinning operation on molten PET particles in the meltblown equipment (502). The meltblown equipment (502) draws external PET particles into the meltblown equipment (502) through a suction tube.

9. A method for producing meltblown PET cotton using a special equipment, characterized in that, The method using the meltblown PET cotton production equipment according to any one of claims 1 to 8 specifically includes the following steps: Step 1: Start the PET carding mechanism (1). The PET fibers are carded by the first carding mechanism (101) to break them apart and remove impurities. The carded PET fibers are then transported to the second carding mechanism (103) through the conveying pipe (102) for secondary carding to form a fiber layer. The material processed by the second carding mechanism (103) is then transported to the inside of the PET outlet (3) by the inclined conveying mechanism (2) to prepare for subsequent melt spinning. Step 2: Start the spraying assembly (5), draw in external PET particles through the meltblown equipment (502) and heat and melt them. The molten PET particles are then spun into fibers through the second spraying die (501) to form a fine PET fiber stream, which is then sprayed onto the top of the third roller mechanism (403). Step 3: The suction roller mechanism (4) is started, and the third roller mechanism (403) rotates under the action of the drive component (13). The second suction component (404) draws air in a directional manner through the gas through hole. The material discharged from the PET outlet (3) and the outer layer sprayed fiber filaments are drawn to the third roller mechanism (403) and then transferred to the second roller body (402) and the first roller body (401) in sequence. The gas flow detection component (405) in the third roller mechanism (403) monitors the gas flow during fiber transmission in real time and feeds the data back to the external control mechanism. The control mechanism judges the fiber layer thickness based on the flow data. If there is an uneven area, the first spraying head of the drive spray component (10) sprays the fiber layer on the outside of the material. The drive motor (131) drives the third roller mechanism (403) to rotate and can also drive the rotating rod to drive the roller brush component (11) to rotate, cleaning the fiber residue on the surface of the third roller mechanism (403). Step 4: The fiber layer (including the outer sprayed fiber) processed by the third roller mechanism (403) is conveyed to the covering mechanism (6) to perform the upper and lower surface covering operation, forming a composite structure of "covering-fiber layer-covering". Step 5: The shaped PET cotton is cut horizontally and vertically according to the preset size by the cutting mechanism (8) to form a standardized product. The cut PET cotton is then wound up by the fabric winding device (9). During the winding process, tension control is used to ensure that the roll is flat and the finished product is completed.

Images