An automatic production equipment for mask filter cotton

Abstract

The application discloses a kind of automatic production equipment of gauze mask filter, it is related to technical field, including fixed frame, rack and pressing host computer;It further includes air inflation shaft, layered mechanism, anti-static flattening mechanism, fixed-length die cutting forming mechanism, traction mechanism and driving motor;Air inflation shaft is fixed on rack, and multiple raw material rolls are placed on air inflation shaft;Layered mechanism is arranged on fixed frame, and is located in the position of raw material feeding path upstream close to rack;Fixed-length die cutting forming mechanism is arranged on the discharge side of pressing host computer;Traction mechanism is located in the side of pressing host computer away from fixed frame, and traction mechanism can stably uniform speed transport integrated filter cotton blank to fixed-length die cutting forming mechanism after pressing is completed;Driving motor is installed in the installation area of the back of fixed frame, respectively with each air inflation roller connection, driving motor drives air inflation roller to rotate to transport different filter material raw material;Realize to each layer raw material is corrected in position before superposition, while eliminating electrostatic generated by raw material friction in time in the process of conveying.

Description

Technical Field

[0001] This invention relates to the field of technology, and in particular to an automated production equipment for mask filter cotton. Background Technology

[0002] Face masks, as a core item for daily protection, are widely used in various fields such as medical care, public health, and daily protection. The filter cotton is the core functional component of a face mask; its flatness, interlayer adhesion strength, dimensional accuracy, and filtration performance directly determine the mask's protective effect and quality of use. As the core functional layer of a protective face mask, the filter cotton is often composed of multiple layers of functional materials such as meltblown fabric, granular activated carbon filter media, and non-woven fabric. The integrity of its interlayer bonding, surface flatness, and internal fiber bulkiness directly determine the finished mask's sealing performance, filtration efficiency, and lifespan.

[0003] Currently, the industry generally uses roller-cutting equipment to process composite filter cotton. However, there are three inherent defects in the preparation of filter materials containing activated carbon interlayers. First, the continuous squeezing of the rollers during the rolling process can easily cause activated carbon particles to accumulate and slip. In addition, the uneven stress during instantaneous hot pressing at line contact can lead to cracking of the filter layer weld, powder leakage and granulation, which significantly weakens the protective effect. Second, the continuous dragging of material by multiple rollers can easily cause the soft filter material to stretch and wrinkle. The wrinkles cannot be eliminated after hot pressing and shaping, resulting in poor fit and sealing of the finished mask and a high rate of appearance defects. Third, the roller-cutting equipment relies on the foam-wrapping rollers to hold and feed the material. Continuous squeezing can compact the meltblown fibers and puncture the thin substrate, resulting in substandard filtration efficiency and high cost of scrapping the finished product.

[0004] In summary, traditional rolling cutting equipment is difficult to stably mass-produce activated carbon composite filter cotton. The industry urgently needs an automated production equipment that can handle roller clamping, layered feeding, uniform hot pressing, and intermittent die cutting to solve the above-mentioned production shortcomings. Summary of the Invention

[0005] This application provides an automated production equipment for mask filter cotton. The purpose of this invention is to overcome the three major defects of existing roller-cut filter cotton production equipment in processing activated carbon composite filter cotton. It provides an automated production equipment for mask filter cotton that solves the problems of slippage of granular activated carbon interlayers, weld cracking, weak interlayer welding, and activated carbon powder leakage caused by the roller pressing and extrusion of traditional roller-cutting equipment; it solves the problems of filter material stretching and wrinkling caused by continuous dragging during roller cutting, resulting in permanent wrinkles, poor fit and sealing of finished masks, and substandard appearance; it solves the problems of filter cotton pore compression, substandard filtration efficiency, and large-scale scrapping caused by the foam-wrapping conveyor roller clamping and compacting the filter material and puncturing meltblown fibers; and it simultaneously solves the derivative production problems of multi-layer raw material feeding misalignment, electrostatic adsorption of impurities during conveying, poor cutting dimensional accuracy, and low automation in traditional equipment, achieving integrated high-quality continuous production of multi-layer composite filter cotton.

[0006] This application provides an automated production equipment for mask filter cotton, including a fixed frame, a material rack, and a pressing host. The material rack is fixed on the fixed frame, and the pressing host is located on one side of the fixed frame. The raw material is placed on the material rack, and the pressing host presses and bonds multiple layers of filter material to obtain an integrally formed mask filter cotton blank. It also includes an air shaft, a layering mechanism, an anti-static flattening mechanism, a fixed-length die-cutting mechanism, a traction mechanism, and a drive motor; The air shaft is fixed on the material rack, and multiple raw material rolls are placed on the air shaft. Raw materials of different filter materials are placed separately to facilitate feeding them in sequence according to the structural requirements of the filter cotton. The layering mechanism is set on the fixed frame and located upstream of the raw material feeding path near the material rack. It can separate raw materials of different layers to avoid misalignment between layers when feeding stacked materials. The anti-static flattening mechanism is arranged between the layering mechanism and the pressing host to eliminate static electricity generated by interlayer friction. At the same time, it flattens and straightens the raw materials that are wrinkled during the conveying process to prevent wrinkles from entering the pressing process and affecting the flatness and filtration effect of the filter cotton after forming. The fixed-length die-cutting forming mechanism is located on the discharge side of the pressing host. After the integrated filter cotton blank is pressed and transported to the mechanism, it will be cut into the corresponding specifications of mask filter cotton finished products according to the preset size. The traction mechanism is located on the side of the pressing host away from the fixed frame. The traction mechanism can stably and uniformly transport the pressed integrated filter cotton blank to the fixed length die-cutting forming mechanism. The drive motor is installed in the mounting area on the back of the fixed frame and is connected to each air expansion roller. The drive motor drives the air expansion roller to rotate so as to stably convey different filter material raw materials.

[0007] Furthermore, the layering mechanism includes multiple parallel layering air-expanding rollers and matching adjustment brackets. The adjustment brackets achieve height fixation through vertically spaced adjustment holes in the fixing frame. A gap is reserved between adjacent layering air-expanding rollers, allowing only a single layer of material to pass through. Each layer of material passes through the gap to achieve layered feeding.

[0008] Furthermore, the antistatic flattening mechanism is fixed at one end of the fixed frame near the pressing host, and includes an active flattening roller and an antistatic brush roller arranged correspondingly on the top and bottom. The surface of the active flattening roller is covered with a soft rubber layer, and the antistatic brush roller is made of conductive nylon material and grounded at its end.

[0009] Furthermore, the pressing host is fixed on the top of the workbench, the workbench is located on one side of the fixed frame, the pressing host is a hot press, the hot press is equipped with upper and lower corresponding heating rollers, and the multi-layer raw materials after being stacked are hot-pressed and bonded at constant temperature and force through the heating rollers.

[0010] Furthermore, several sets of tensioning mechanisms are fixed on the fixed frame. The tensioning mechanism includes two sets of tensioning rollers arranged alternately. The tensioning rollers are slidably connected to the fixed frame through elastic sliders on the side. The elastic sliders are pre-installed with springs with preset elastic force, and the elastic sliders are provided with positioning holes for installing positioning bolts to adjust the initial preload of the tensioning rollers.

[0011] Furthermore, the material rack has a multi-layer split structure, with each layer of the rack independently holding a roll of raw material of a single filter material. Each roll of raw material can be rotated and fed independently without interfering with each other.

[0012] Furthermore, a cutting table is fixed on one side of the workbench, and the fixed-length die-cutting mechanism is fixed above the cutting table. A collection box is slidably installed on the cutting table. The collection box is located directly below the die-cutting station and is equipped with a cylinder to drive it to slide out.

[0013] Furthermore, the fixed-length die-cutting forming mechanism includes two mounting seats symmetrically fixed above the cutting table, two drive rollers, a transmission belt, a driver, and a die-cutting blade assembly; the two drive rollers are rotatably connected to the upper and lower ends of the two mounting seats respectively, the transmission belt is fitted on the outside of the drive rollers, the driver is fixed on the outside of the mounting seats and is connected to the drive rollers in a transmission manner, and the die-cutting blade assembly is fixed on the outer surface of the transmission belt, and moves cyclically with the transmission belt to realize continuous die-cutting operation.

[0014] Furthermore, the traction mechanism includes two guide rails fixed parallel to each other above the cutting table, a slider slidably connected to the guide rails, a traction motor, and a mechanical gripper; the lead screw slider of the traction motor and the sliders of the two guide rails are connected to the transmission connector above, and the mechanical gripper is fixed at equal intervals on the side of the slider facing the raw material. The traction motor drives the slider to move back and forth to achieve intermittent and precise feeding of the raw material.

[0015] Furthermore, the fixing frame is fixed with multiple parallel polishing guide rollers and a reduction gear set. The reduction gear set is located on the same side as the drive motor, and the drive motor is connected to each air roller through the reduction gear set. The guide rollers are located on the raw material conveying path and are used to guide and level the multi-layer raw materials. One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. The activated carbon interlayer is firmly fused, preventing cracking and powder leakage. The layered structure isolates each layer of filter material, and the elastic tensioning mechanism applies only low tension to avoid squeezing and slipping of activated carbon particles. The flat hot press uses surface contact constant temperature and constant force pressing, which ensures sufficient hot pressing and uniform stress between layers. The activated carbon layer is completely fused with the upper and lower filter materials without any gaps or delamination, preventing particle shedding and powder leakage. The composite strength is stable and reliable.

[0016] 2. The filter cotton is kept flat throughout the process, which improves the sealing and appearance quality of the mask. The soft rubber active flattening roller and the low friction polishing guide roller smooth out the wrinkles. The continuous dragging of the roller is abandoned. The cylinder gripper is used to intermittently grab the edge of the filter material for feeding. The filter material is not stretched or deformed, the surface of the finished product is flat, and the mask fits tightly after assembly without any air leakage gaps. The appearance defect rate is significantly reduced.

[0017] Third, it protects meltblown fibers, ensuring stable and compliant filtration performance. By eliminating the foam-wrapped clamping rollers, it only grasps the edge of the filter material for conveying, without squeezing the filtration functional area. The fluffy fiber structure of the meltblown cloth is fully preserved, resulting in lower breathing resistance. There is no risk of the foam rollers scratching or puncturing the substrate, ensuring stable filtration efficiency that meets national standards. The scrap rate of finished products and raw material loss are significantly reduced. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an automated production equipment for mask filter cotton according to the present invention; Figure 2 This is a schematic diagram of the specific structure of the fixing frame of an automated production equipment for mask filter cotton according to the present invention; Figure 3 This is a schematic diagram of the connection relationship between the fixed frame and the workbench of an automated production equipment for mask filter cotton according to the present invention; Figure 4 This is a schematic diagram of the connection relationship between the drive motor and the fixing frame of an automated production equipment for mask filter cotton according to the present invention; Figure 5 This is a schematic diagram of the workbench structure of an automated production equipment for mask filter cotton according to the present invention. Figure 6 This is a schematic diagram of the specific structure of the dividing table in an automated production equipment for mask filter cotton according to the present invention.

[0019] In the diagram: 1. Fixed frame; 2. Material rack; 3. Air shaft; 4. Tensioning mechanism; 5. Layering mechanism; 6. Anti-static flattening mechanism; 7. Workbench; 8. Pressing main unit; 9. Fixed-length die-cutting forming mechanism; 10. Traction mechanism; 11. Dividing table; 12. Drive motor; 13. Guide roller; 14. Collection box; 15. Reduction gear set; 16. Base. Detailed Implementation

[0020] To facilitate understanding of the present invention, a more complete description of this application will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the disclosure of the present invention.

[0021] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only 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.

[0023] like Figures 1 to 6 As shown, this application proposes an automated production equipment for mask filter cotton, including a fixed frame 1, a material rack 2, and a pressing host 8. The material rack 2 is fixed on the fixed frame 1, and the pressing host 8 is located on one side of the fixed frame 1. Raw materials are placed on the material rack 2, and the pressing host 8 presses and bonds multiple layers of filter materials together to obtain an integrally formed mask filter cotton blank. It also includes an air expansion shaft 3, a layering mechanism 5, an anti-static flattening mechanism 6, a fixed-length die-cutting mechanism 9, a traction mechanism 10, and a drive motor 12. The air expansion shaft 3 is fixed on the material rack 2, and multiple rolls of raw materials are placed on the air expansion shaft 3. Raw materials of different filter materials are placed separately to facilitate sequential feeding according to the structural requirements of the filter cotton. The layering mechanism 5 is located on the fixed frame 1, upstream of the raw material feeding path near the material rack 2, and can separate different layers of raw materials to avoid interlayer misalignment during stacked feeding. An anti-static flattening mechanism 6 is arranged between the layering mechanism 5 and the pressing host 8. It can eliminate static electricity generated by interlayer friction and flatten and straighten the raw materials that are wrinkled during the conveying process, so as to prevent wrinkles from entering the pressing process and affecting the flatness and filtration effect of the filter cotton after molding. The fixed-length die-cutting and forming mechanism 9 is set on the discharge side of the pressing host 8. After the integrated filter cotton blank is pressed, it will be conveyed to this mechanism and cut into the corresponding specifications of mask filter cotton finished products according to the preset size. The traction mechanism 10 is located on the side of the pressing host 8 away from the fixed frame 1. The traction mechanism 10 can stably and uniformly convey the integrated filter cotton blank to the fixed-length die-cutting and forming mechanism 9. The drive motor 12 is installed in the mounting area on the back of the fixed frame 1 and is connected to each air expansion roller. The drive motor 12 drives the air expansion roller to rotate to stably convey raw materials of different filter materials.

[0024] Preferably, the layering mechanism 5 consists of multiple parallel layered air-expanding rollers and matching adjustment brackets. The adjustment brackets are spaced apart by adjustment holes along the vertical direction of the fixed frame 1 to fix the height. A gap is left between adjacent layered air-expanding rollers, allowing only a single layer of raw material to pass through. The raw materials of different layers pass through the corresponding gaps respectively, separating each raw material layer from the source, and avoiding mutual misalignment between layers from the feeding stage.

[0025] Preferably, the antistatic flattening mechanism 6 is fixed on the fixed frame 1 at one end near the pressing host 8. The antistatic flattening mechanism 6 is composed of an active flattening roller and an antistatic brush roller arranged vertically. The surface of the active flattening roller is covered with a soft rubber layer, which can smooth the wrinkles on the surface of the raw material during the conveying process and avoid scratching the filter material.

[0026] Preferably, the pressing host 8 is fixed on the workbench 7, which is located on one side of the fixed frame 1. The pressing host 8 is a hot press that uses upper and lower heating rollers to hot press and bond the stacked multi-layer raw materials, so that the raw material layers of different filter materials are firmly bonded together. The stable heating temperature and pressing force can ensure the structural uniformity of the finished filter cotton, avoid the problem of local poor adhesion or over-pressing, and ensure that the filtration efficiency and air permeability of the filter cotton meet the production standards.

[0027] Preferably, the fixed frame 1 is fixed with multiple tensioning mechanisms 4. The tensioning mechanism 4 consists of two sets of tensioning rollers arranged alternately. Each set of tensioning rollers is connected to the fixed frame 1 through an elastic slider on the side. The elastic slider is pre-loaded with a spring with a preset elastic force, which can continuously provide stable tension to the multi-layer raw materials being conveyed, avoid wrinkles caused by slack during the material conveying process, and also buffer the tension fluctuations generated during the material conveying process, ensuring that each layer of raw materials is always in a flat and smooth conveying state, providing a stable foundation for subsequent pressing processing.

[0028] Preferably, the material rack 2 on the fixed frame 1 is arranged in multiple layers, with each layer corresponding to the placement of raw material rolls of different filter materials. Each raw material roll rotates independently for feeding, without mutual interference. Different combinations of raw materials can be matched as needed to flexibly produce mask filter cotton products with different filtration levels and functions, adapting to diverse production needs. At the same time, the layered arrangement of the material rack 2 allows the raw materials of each layer to be directly transported along the corresponding path after feeding, reducing the risk of raw materials getting tangled and making it easier for operators to replace used raw material rolls, improving the efficiency of material replacement operations and reducing equipment standby time.

[0029] Preferably, a dividing table 11 is fixed on one side of the workbench 7, and the fixed-length die-cutting and forming mechanism 9 is fixed on the cutting table. The cutting table is located on the side of the workbench 7 away from the fixed frame 1. A collection box 14 is provided on the cutting table. The collection box 14 is used to collect the finished filter cotton products after cutting, which is convenient for operators to sort and transfer. At the same time, the collection box 14 is set below the cutting station, so the finished products after cutting can fall directly into the groove without additional manual picking, which improves the smoothness of the production process.

[0030] Preferably, the fixed-length die-cutting forming mechanism 9 consists of a mounting base, a drive roller, a transmission track, a drive motor 12, and a die-cutting blade assembly. Two mounting bases are symmetrically fixed above the cutting table. Two drive rollers are rotatably connected to the upper and lower ends between the two mounting bases. The transmission track is fitted on the outside of the two drive rollers. The driver is fixed on the outside of one of the mounting bases. The output shaft of the driver is connected to the shaft end of the corresponding drive roller. The die-cutting blade assembly is fixedly installed on the outer surface of the transmission track. It continuously performs die-cutting operations on the composite raw materials that are delivered to the position as the transmission track moves cyclically. It can stably complete the cutting according to the set size and ensure that the dimensional accuracy of the formed filter cotton is uniform.

[0031] Preferably, the driver is a motor. The motor drives the drive roller to rotate continuously through the output shaft, so that the transmission track can maintain a stable running speed, which is compatible with the processing rhythm of the entire production line. This avoids the problem of mismatch between the die-cutting speed and the upstream feeding speed. At the same time, the stable output torque of the motor can ensure that the cutting force is uniform when the die-cutting blade group presses down to cut, avoiding incomplete cutting and rough edges, and effectively improving the processing quality of the finished filter cotton.

[0032] Preferably, the traction mechanism 10 consists of a mechanical gripper, guide rails, a slider, and a traction motor. Two guide rails are fixed parallel to each other above the dividing table 11, and the slider is slidably connected to the guide rails. The lead screw slider of the traction motor and the sliders of the two guide rails are connected to the transmission connector above. The mechanical gripper is equidistantly installed on the side of the slider facing the raw material. By pushing the slider along the guide rails to move back and forth through the traction motor, the mechanical gripper can intermittently pick up the fixed raw material and transport it to the fixed-length die-cutting forming mechanism 9. This coordinates with the die-cutting operation rhythm and ensures that the length of each feeding is stable and accurate.

[0033] Preferably, a guide roller 13 is fixed on the fixed frame 1. The guide roller 13 is a plurality of parallel cylindrical rollers with polished surfaces. The raw material comes into contact with the guide roller 13 during the conveying process. The guide roller 13 can guide and level the multi-layer composite raw material during the conveying process, avoid wrinkles and deviations in the raw material during the conveying process, ensure that the raw material remains flat and smooth when it enters the die-cutting mechanism, and improve the accuracy of the die-cutting process.

[0034] Preferably, a reduction gear set 15 is fixed on the fixed frame 1. The reduction gear set 15 and the drive motor 12 are located on the same side. The drive motor 12 and the reduction gear set 15 are connected in transmission. The output end of the reduction gear set 15 is connected in transmission to the air expansion rollers. This can drive the air expansion rollers to rotate synchronously and at the same speed, so as to stably regulate the tension of the raw material in the unwinding state, avoid the situation where the tension of the multi-layer raw material is uneven due to the difference in unwinding speed of different air expansion rollers, and ensure that the unwinding process of each layer of raw material is synchronous and stable.

[0035] Preferably, the air shaft 3 is a detachable core structure. A sleeve is detachably fitted on the outside of the core shaft of the air shaft 3. The raw material roll is directly fitted on the outside of the sleeve for unwinding. When it is necessary to change the raw material roll with a different inner diameter, only the sleeve with the appropriate inner diameter needs to be replaced. There is no need to replace the entire air shaft 3, which reduces the modification cost of the equipment to adapt to the production of different specifications and improves the applicability of the equipment.

[0036] Preferably, the bottom of the fixed frame 1 is fixed with a base 16, and the bottom of the base 16 is provided with casters, which makes it convenient to adjust the placement of the equipment according to the layout of the production workshop, and also facilitates the relocation and maintenance of the equipment. The casters are equipped with a locking structure, which can be locked and fixed directly after adjustment to prevent the equipment from shifting during the production process.

[0037] Preferably, the antistatic brush roller is made of conductive nylon material, with the end grounded to discharge static electricity. This can eliminate static electricity generated by friction of raw materials in a timely manner, avoid static adsorption that causes misalignment of raw material layers and adsorption of floating dust and impurities, and ensure that each raw material layer is flat and can enter the next processing stage.

[0038] Preferably, the elastic slider of the tensioning mechanism 4 is provided with a positioning hole. The operator can adjust the initial preload of the elastic slider by screwing in the positioning bolt, thereby adjusting the tension of the tensioning roller on the raw material, adapting to the tension requirements of filter raw materials of different thicknesses and materials, and further improving the equipment's adaptability to different production requirements.

[0039] Preferably, the collection box 14 is slidably connected to the dividing table 11. The collection box 14 is driven by a cylinder, which facilitates the direct pushing of the formed filter cotton to the outside of the equipment for operators to collect. This eliminates the need for workers to reach into the equipment to collect the material, reducing the workload of operators and preventing accidents caused by touching the cutting mechanism during material collection. At the same time, the collection box 14 can temporarily store and transfer the finished products after cutting, improving the smoothness of finished product unloading and collection and ensuring the continuous progress of the production process.

[0040] Preferably, the equipment is controlled by a human-machine interface (HMI) electrical control system located on one side of the cutting table. This HMI system consists of a programmable logic controller (PLC), a touchscreen display, a sensor unit, and an execution drive unit. Operators can directly set production parameters such as cutting length and raw material conveying speed via the touchscreen display, and the system displays the equipment's operating status and production count in real time, facilitating rapid adjustment of production parameters and intuitive monitoring of production progress. The sensor unit can collect real-time information on the conveying position and tension of each raw material layer, automatically controlling the execution drive unit to adjust the equipment's operating status.

[0041] Preferably, the die-cutting blade assembly consists of a first cutter, a second cutter, and a middle cutting blade arranged symmetrically on the left and right. The first and second cutters extend along the filter cotton conveying direction and are used to trim and trim the rough edges on both sides of the multi-layered filter cotton raw material to ensure that the width of the finished filter cotton is consistent. The middle cutting blade is arranged perpendicular to the filter cotton conveying direction and can cut the filter cotton horizontally according to a set length. Trimming and fixed-length cutting can be completed simultaneously in one feed, simplifying the processing steps and improving the accuracy and production efficiency of die-cutting.

[0042] Preferably, a hydraulically driven pressure regulating mechanism is connected above the die-cutting blade assembly, which can adjust the die-cutting pressure according to the thickness of the filter cotton to ensure that the cutting edge is sharp and neat, and avoid the situation of incomplete cutting or burrs.

[0043] Preferably, the fixing frame 1 is assembled from multiple vertical support rods spaced apart along the filter cotton conveying direction and transverse connecting rods connecting adjacent vertical support rods. The drive motor 12 is fixed to the side wall of the fixing frame 1 by bolts, which facilitates the disassembly and maintenance of the drive motor 12.

[0044] In actual use, an automated production equipment for mask filter cotton according to an embodiment of this application is as follows: The first step involves the operator inputting production parameters in advance, based on the specifications, filtration level, and size parameters of the filter cotton for the masks to be produced, through the touch screen on the side of the equipment. These parameters include raw material conveying speed, hot pressing temperature, pressing force, die-cutting length, and traction feeding distance. The programmable logic controller (PLC) receives the parameters and completes program initialization, and the sensing and detection unit enters real-time monitoring standby mode. Subsequently, according to production needs, different filter material rolls are selected, and each roll is fitted onto the outside of the air expansion shaft 3 sleeve of the corresponding layer of the material rack 2. The detachable core structure adapts to raw material rolls with different inner diameters, eliminating the need to replace the entire air expansion shaft 3, thus completing the rapid clamping of multiple specifications of raw materials.

[0045] In the second step, after the equipment is started, the drive motor 12 transmits power through the reduction gear set 15, driving each air shaft 3 to rotate synchronously at the same speed. After each layer of raw material is independently fed from the multi-layer material rack 2, it passes into the single-layer gap of the adjacent layer air expansion rollers in the layering mechanism 5. The layer air expansion rollers physically separate each layer of raw material from the source, preventing the problems of interlayer misalignment and stacking offset during the feeding of multi-layer raw materials. This ensures that each layer of raw material is independently and stably conveyed forward, avoiding the problem of early feeding deviations affecting the subsequent forming accuracy.

[0046] In the third step, after the material layers are layered, each layer passes sequentially through multiple sets of tensioning mechanisms 4 and guide rollers 13 on the fixed frame 1. The tensioning mechanism 4, through the staggered tensioning rollers and the elastic slider with built-in springs, continuously applies a constant tension force to the conveyed material, effectively buffering tension fluctuations during material conveying and preventing the material from loosening, wrinkling, or deviating. Multiple polishing guide rollers 13 simultaneously guide and level the multiple layers of material, ensuring that each layer of material is always in a straight and smooth conveying state. Subsequently, the material enters the anti-static flattening mechanism 6, where the active flattening rollers and anti-static brush rollers arranged vertically and vertically complete the fine flattening and anti-static operation. The active flattening rollers covered with a soft rubber layer smooth out the fine wrinkles on the surface of the material.

[0047] The fourth step involves smoothly conveying the multi-layered, orderly raw materials, after being flattened and destaticated, into the pressing unit 8. The pressing unit 8 employs a hot press structure, using upper and lower heating rollers to perform constant-temperature, constant-force hot pressing and bonding of the stacked multi-layered filter materials. Based on preset heating temperature and pressing force parameters, the filter layers of different materials are firmly fused together.

[0048] In the fifth step, the hot-pressed integrated filter cotton blank is continuously conveyed to the traction mechanism at station 10. The traction motor drives the slider to reciprocate linearly along the parallel guide rail, which drives the mechanical gripper on the slider to accurately grab the filter cotton blank. This, combined with the rhythm of the back-end die-cutting operation, achieves intermittent and equidistant feeding.

[0049] Step 6: After the filter cotton blank is conveyed to the fixed-length die-cutting forming mechanism 9 on the cutting table, the driver drives the drive roller to rotate, which in turn drives the transmission belt and the die-cutting blade assembly fixed on the surface to move in a cycle, realizing continuous automated die-cutting operation. During the operation, the first and second cutters, which are symmetrical on the left and right sides of the die-cutting blade assembly, simultaneously trim and trim the rough edges on both sides of the filter cotton blank to ensure that the width of the finished product is uniform; the vertically set cutter in the middle performs fixed-length transverse cutting of the blank according to preset parameters. The trimming and fixed-length cutting processes can be completed simultaneously in a single feed, which greatly simplifies the processing flow and ensures that the dimensional accuracy of each mask filter cotton finished product is uniform.

[0050] In the seventh step, the die-cut standard filter cotton products fall directly from below the cutting station into the sliding collection box 14, completing the automatic unloading and temporary storage of finished products. This eliminates the need for manual picking, avoiding the safety hazards and operational errors associated with manual material handling. Once a certain amount of finished products accumulates in the collection box 14, a cylinder drives the collection box 14 to slide out of the equipment, facilitating unified sorting and transfer of finished products by operators and ensuring the continuous and smooth progress of the production process.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automated production equipment for mask filter cotton, comprising a fixed frame (1), a material rack (2) and a pressing host (8), wherein the material rack (2) is fixed on the fixed frame (1) and the pressing host (8) is located on one side of the fixed frame (1); Its features are, It also includes an air shaft (3), a layering mechanism (5), an anti-static flattening mechanism (6), a fixed-length die-cutting mechanism (9), a traction mechanism (10), and a drive motor (12). The air shaft (3) is fixed on the material rack (2), and multiple raw material rolls are placed on the air shaft (3); The layering mechanism (5) is mounted on the fixed frame (1) and located upstream of the raw material feeding path, near the material rack (2); The fixed-length die-cutting forming mechanism (9) is located on the discharge side of the pressing host (8), and the integrated filter cotton blank after pressing is conveyed to the mechanism. The traction mechanism (10) is located on the side of the pressing host (8) away from the fixed frame (1). The traction mechanism (10) can stably and uniformly transport the pressed integrated filter cotton blank to the fixed length die-cutting forming mechanism (9). The drive motor (12) is installed in the mounting area on the back of the fixed frame (1) and is connected to each air roller. The drive motor (12) drives the air roller to rotate so as to stably transport different filter material raw materials.

2. The automated production equipment for mask filter cotton according to claim 1, characterized in that, The layering mechanism (5) includes multiple parallel layered air expansion rollers and matching adjustment brackets. The adjustment brackets achieve height fixation through adjustment holes spaced vertically in the fixing frame (1). The layered air-expanding rollers have gaps between them that allow only a single layer of material to pass through, and each layer of material passes through the gaps to achieve layered feeding.

3. The automated production equipment for mask filter cotton according to claim 1, characterized in that, The antistatic flattening mechanism (6) is fixed at one end of the fixed frame (1) near the pressing host (8), and includes an active flattening roller and an antistatic brush roller arranged correspondingly on the upper and lower sides. The surface of the active flattening roller is covered with a soft rubber layer, and the antistatic brush roller is made of conductive nylon material and grounded at its end.

4. The automated production equipment for mask filter cotton according to claim 1 or 3, characterized in that, The pressing host (8) is fixed on the top of the workbench (7); The workbench (7) is located on one side of the fixed frame (1); The pressing host (8) is a hot press, which is equipped with upper and lower corresponding heating rollers. The heating rollers are used to heat and bond the multi-layered raw materials at constant temperature and force.

5. The automated production equipment for mask filter cotton according to claim 2, characterized in that, Several sets of tensioning mechanisms (4) are fixed on the fixed frame (1); The tensioning mechanism (4) includes two sets of tensioning rollers arranged alternately. The tensioning roller is slidably connected to the fixed frame (1) via an elastic slider on the side; The elastic slider is pre-installed with a spring with a preset elastic force, and the elastic slider has a positioning hole for installing a positioning bolt, which is used to adjust the initial preload of the tensioning roller.

6. The automated production equipment for mask filter cotton according to claim 1, characterized in that, The rack (2) is a multi-layer split structure; Each layer of the material rack (2) independently holds a roll of raw material of a single filter material, and each roll of raw material rotates independently to release material without interfering with each other.

7. The automated production equipment for mask filter cotton according to claim 4, characterized in that, A cutting table is fixed on one side of the workbench (7); The fixed-length die-cutting forming mechanism (9) is fixed above the cutting table; A collection box (14) is slidably installed on the cutting table. The collection box (14) is located directly below the die-cutting station and is equipped with a cylinder that drives it to slide out.

8. The automated production equipment for mask filter cotton according to claim 1, characterized in that, The fixed-length die-cutting forming mechanism (9) includes two mounting seats symmetrically fixed above the cutting table, two drive rollers, a transmission track, a driver and a die-cutting blade assembly, with the two drive rollers rotatably connected to the upper and lower ends of the two mounting seats respectively; The transmission track is fitted on the outside of the drive roller, and the driver is fixed on the outside of the mounting base and is connected to the drive roller in a transmission manner. The die-cutting blade assembly is fixed to the outer surface of the transmission track and moves cyclically with the transmission track to achieve continuous die-cutting operations.

9. The automated production equipment for mask filter cotton according to claim 1, characterized in that, The traction mechanism (10) includes two guide rails fixed in parallel above the cutting table, a slider slidably connected to the guide rails, a traction motor, and a mechanical gripper; The lead screw slider and the two side guide rail sliders of the traction motor are connected to the upper transmission connector; The mechanical gripper is fixed at equal intervals on the side of the slider facing the raw material, and the slider is driven to reciprocate by a traction motor to achieve intermittent and precise feeding of the raw material.

10. The automated production equipment for mask filter cotton according to claim 1, characterized in that, The fixed frame (1) has multiple parallel polishing guide rollers (13) and a reduction gear set (15). The reduction gear set (15) is arranged on the same side as the drive motor (12), and the drive motor (12) is connected to each air roller through the reduction gear set (15); The guide roller (13) is located on the raw material conveying path.

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