Tampon core forming method and tampon core processing device
By coordinating and adjusting the yarn conveying module with the yarn drawing machine and designing the linkage of five major mechanisms, the problem of frequent replacement of cotton core substrate in sanitary tampons production has been solved, achieving efficient and stable cotton core forming and automated production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-16
- Publication Date
- 2026-03-10
AI Technical Summary
Existing tampon production equipment requires frequent replacement of the core substrate when processing tampons of different sizes, resulting in low production efficiency, unstable equipment operation, and insufficient core toughness, which easily leads to fiber shedding.
The yarn conveying module works in conjunction with the yarn drawing frame to produce cotton cores of different widths and thicknesses by adjusting the yarn supply. The combined design of five major mechanisms enables automated conveying and processing, including cotton core forming, wrapping and pressing, sewing and cutting.
It reduces material change time, improves production continuity and efficiency, reduces equipment fluctuation risks, enhances the toughness of cotton cores and product consistency, and adapts to the needs of large-scale production.
Smart Images
Figure CN121622358A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to sanitary cotton core forming technology field, more specifically, it relates to a kind of sanitary cotton core forming method and its processing device. BACKGROUND
[0002] As a commonly used disposable sanitary product, the forming quality of the cotton core of sanitary napkin directly affects the use experience and production efficiency of the product. The mainstream disposable sanitary napkin production equipment on the market needs to replace the cotton core substrate of different thickness to adapt to product demand when processing cotton cores of different code numbers (corresponding to different width and thickness specifications). Due to the short single production time of the cotton core substrate roll material, the substrate replacement operation is frequent during production, which not only occupies a large amount of production time and reduces production efficiency, but also easily causes equipment operation fluctuation due to frequent material replacement, affecting production stability; at the same time, in the traditional cotton core forming process, the combination mode of the substrate is simple, so that the toughness of the cotton core is insufficient, and fiber shedding phenomenon easily occurs during production or use, affecting product quality. Therefore, a new sanitary cotton core forming method and its processing device are proposed. SUMMARY
[0003] In view of the deficiencies in the prior art, the present application aims to provide a sanitary cotton core forming method and its processing device to solve the technical problems existing in the background art.
[0004] The above technical purpose of the present application is realized by the following technical scheme: a sanitary cotton core forming processing device, comprising: a cotton core forming mechanism for pressing the combed roving raw material into a cotton core body in sequence along the product processing direction, a wrapping and pressing mechanism for wrapping and pressing the cotton core body output by the cotton core forming mechanism with an outer layer of non-woven fabric, a forming transfer mechanism for receiving the wrapped cotton core body delivered by the wrapping and pressing mechanism and delivering it in segments, a stitching delivery mechanism for receiving the segmented cotton core body and delivering it in stitches, and a finished product cutting mechanism for cutting and delivering the stitched cotton core body.
[0005] Optionally, the cotton core forming mechanism comprises: a plurality of storage barrels for storing combed roving raw materials, a yarn pulling module, a yarn drawing frame and a yarn delivery module; the yarn delivery module is connected with the yarn drawing frame and has yarn cutting function; the yarn drawing frame is provided with a compression roller.
[0006] Optionally, the wrapping and pressing mechanism comprises: a pulling wheel, a wrapping and folding module and a pressing roller, the pulling wheel is arranged between the cotton core forming mechanism and the wrapping and folding module, and the pressing roller is arranged downstream of the wrapping and folding module.
[0007] Optionally, the package folding module comprises a package folding guide wheel and a three-piece package plate; the package folding guide wheel cooperates with the three-piece package plate to realize the wrapping of the outer non-woven fabric and the cotton strip-shaped core body.
[0008] Optionally, the pressing roller is a three-piece pressing roller, which is used to press and fix the outer non-woven fabric and the cotton strip-shaped core body.
[0009] Optionally, the forming and transferring mechanism comprises a forming cutter and a transfer drum, the forming cutter is arranged downstream of the pressing roller, and the transfer drum is provided with holes for negative pressure adsorption of the cotton core after being cut by the forming cutter.
[0010] Optionally, the sewing and conveying mechanism comprises a conveying negative pressure groove, a cotton thread sewing machine and a negative pressure adsorption conveyor, the conveying negative pressure groove is connected with the transfer drum, and the cotton thread sewing machine is arranged between the conveying negative pressure groove and the negative pressure adsorption conveyor.
[0011] Optionally, the finished product cutting mechanism comprises a cotton strip cutter, and the cotton strip cutter is connected with the negative pressure adsorption conveyor.
[0012] The application further provides a sanitary tampon core forming method comprising the sanitary tampon core forming device, which comprises the following steps: (1) placing the combed roving raw material in a storage barrel and dragging the raw material to a yarn conveying module through a yarn dragging module; (2) setting the parameters of the yarn drawing frame according to the width W and the thickness H of the target cotton core, controlling the yarn supply amount through the yarn conveying module, and cutting the excess yarn through the cutting function of the yarn conveying module; (3) feeding the yarn into the yarn drawing frame through the yarn conveying module, and pressing the yarn into a cotton strip-shaped core body through the pressing roller of the yarn drawing frame; (4) conveying the cotton strip-shaped core body to the package folding module through a traction wheel, and wrapping and adhering the core body with the outer non-woven fabric; (5) fixing the wrapped core body through the pressing roller, and cutting the cotton core with a preset shape through the forming cutter; (6) adsorbing and transferring the formed cotton core to the conveying negative pressure groove through the transfer drum, and realizing the interval conveying of the cotton core; (7) conveying the cotton core to the cotton thread sewing machine through the conveying negative pressure groove, and completing the cotton thread sewing; and (8) conveying the sewn cotton core to the cotton strip cutter through the negative pressure adsorption conveyor, and cutting the sanitary tampon core product through the cotton strip cutter.
[0013] The application realizes the production of cotton cores with different widths W and thicknesses H by the cooperation of the cutting function of the yarn conveying module in the cotton core forming mechanism and the parameter adjustment of the yarn drawing frame without replacing the cotton core base material, only by adjusting the yarn supply amount, completely solves the problem of replacing the cotton core thickness in the traditional process, greatly reduces the material replacement time, improves the production continuity and efficiency, and reduces the equipment fluctuation risk; the five mechanisms arranged in sequence along the processing direction form a complete production link, the linkage design of components such as traction wheels, conveying negative pressure grooves, negative pressure adsorption conveyors, etc., realizes the automatic conveying and processing of the cotton core from raw materials to finished products, reduces manual intervention, reduces operation errors, at the same time improves the equipment operation stability, and adapts to the large-scale production demand. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 is the assembly structure schematic diagram of the application; Figure 2 is the structure schematic diagram of the tension control module in the application; Figure 3 is the structure schematic diagram of the deviation corrector module in the application; Figure 4 is the structure schematic diagram of the conveying negative pressure groove in the application; Figure 5 is the process flow schematic diagram of the cotton sliver and cotton core forming method in the application.
[0015] In the figure: 1, cotton core forming mechanism; 11, storage barrel; 12, yarn traction module; 1201, counterweight; 1202, potentiometer; 1203, photoelectric sensor; 1204, material guide roller; 13, yarn drawing frame; 14, yarn conveying module; 2, covering and pressing mechanism; 21, traction wheel; 22, wrapping and folding module; 23, pressing roller; 3, forming and transferring mechanism; 31, forming cutter; 32, transfer drum; 4, stitching and conveying mechanism; 41, conveying negative pressure groove; 4101, conveying belt; 4102, negative pressure adsorption hole; 42, cotton thread sewing machine; 43, negative pressure adsorption conveyor; 5, finished product cutting mechanism; 51, cotton sliver cutter. DETAILED DESCRIPTION
[0016] In order to make the purpose, characteristics and advantages of the application more obvious and easy to understand, the specific embodiments of the application will be described in detail below with reference to the drawings. Several embodiments of the application are given in the drawings. However, the application can be realized in many different forms, and is not limited to the embodiments described herein.
[0017] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more features.
[0018] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature. The terms "vertical", "horizontal", "left", "right", "up", "down" and similar expressions are only for the purpose of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0019] The present application will be described in detail below in conjunction with the drawings and examples.
[0020] The present application provides a sanitary tampon core forming and processing device, as shown in Figure 1 The present application provides a sanitary tampon core forming and processing device, as shown in
[0021] In one embodiment, the cotton core forming mechanism 1 comprises: a plurality of storage barrels 11 for storing combed roving raw materials, a yarn pulling module 12, a yarn drawing frame 13, and a yarn conveying module 14; the yarn conveying module 14 is connected with the yarn drawing frame 13 and has a yarn cutting function; the yarn drawing frame 13 is provided with a compression roller.
[0022] Specifically, a plurality of storage barrels 11 for storing combed roving raw materials are uniformly arranged at the input end of the processing device to store combed roving raw materials respectively; the top of the storage barrel 11 is provided with a discharge port, and the bottom is provided with a damping adjustment device, which can adapt the raw material output rate according to the subsequent pulling speed, avoid yarn accumulation or excessive tension breakage, and realize stable supply of raw materials and connection of cut materials; the yarn pulling module 12 is composed of a pulling roller, a tension control module (including a counterweight 1201 and a potentiometer 1202 for real-time detection and adjustment of yarn tension), and a deviation corrector module (carrying a photoelectric sensor 1203 to correct the position of the yarn); the pulling roller is driven by a motor and provided with anti-skid lines on the surface, and is aligned with the discharge port of the storage barrel 11 to smoothly guide the roving raw materials out; the tension control module includes a counterweight 1201 and a potentiometer 1202; by cooperating the counterweight 1201 and the potentiometer 1202, the yarn tension is detected in real time and the tension is dynamically adjusted to ensure uniform tension during yarn pulling; the deviation corrector module carries a photoelectric sensor 1203 to monitor the position of the yarn in real time, and when the yarn deviates from the center, the position is corrected by adjusting the angle of the guide roller 1204 to ensure that the yarn is accurately conveyed to the subsequent yarn conveying module 14; the yarn conveying module 14, as the core component connecting the yarn pulling module 12 and the yarn drawing frame 13, has a blade group and a driving cylinder integrated inside, and a plurality of yarn guide grooves are provided at the top and correspond to each storage barrel 11; according to the width W and thickness H of the target cotton core, the yarn supply quantity is set by the controller, the cutting mechanism under the corresponding guide groove of the excess yarn is started, the excess yarn is quickly cut off and recycled to avoid invalid supply; at the same time, the end of the conveying module is provided with a collection channel to guide the adaptive number of yarns to the yarn drawing frame 13; the input end of the yarn drawing frame 13 is connected with the collection channel of the yarn conveying module, and a pair of compression rollers (the surface is chrome plated and the hardness is ≥HRC55) are arranged inside; the compression roller is driven by hydraulic pressure, and the pressure can be adjusted within the range of 0.3-0.8 MPa; when the combined yarn enters the drawing frame, the compression roller extrudes and combines the yarn at a preset pressure, and the loose roving is compressed into a cotton strip-shaped core body with uniform density and compact structure, which improves the toughness of the cotton core and reduces the risk of fiber shedding.
[0023] In one embodiment, the wrapping and pressing mechanism 2 comprises: a traction wheel 21, a wrapping and folding module 22, and a pressing roller 23, the traction wheel 21 is arranged between the cotton core forming mechanism 1 and the wrapping and folding module 22, and the pressing roller 23 is arranged downstream of the wrapping and folding module 22; the wrapping and folding module 22 comprises: a wrapping and folding guide wheel and a three-piece wrapping plate; the wrapping and folding guide wheel cooperates with the three-piece wrapping plate to realize the wrapping of the outer non-woven fabric and the cotton core; the pressing roller 23 is a three-piece pressing roller 23, which is used to press and fix the outer non-woven fabric and the cotton core.
[0024] Specifically, the traction wheel 21 is made of rubber material, the surface is smooth and has no burrs, and is arranged between the cotton core forming mechanism 1 and the wrapping and folding module, and is driven by a motor to synchronize with the output speed of the drawing frame; its function is to smoothly pull the cotton core to the wrapping and folding module, avoiding deformation or displacement of the core during conveying; the wrapping and folding module is composed of a wrapping and folding guide wheel and a three-piece wrapping plate; the wrapping and folding guide wheel is fixed by a mounting bracket, and a cylinder is arranged on the bracket to adjust the height of the guide wheel to adapt to cotton cores of different thicknesses; the three-piece wrapping plate is connected with an adjusting block through a mounting shaft, and the three wrapping plates are arranged in a "U" shape, and the output end of the outer wrapping non-woven fabric roll is aligned with the edge of the wrapping plate; during work, the cotton core passes through the center of the three-piece wrapping plate, and the outer non-woven fabric is guided by the wrapping and folding guide wheel and is gradually folded and wrapped outside the cotton core by the three-piece wrapping plate, realizing the wrapping of the cotton core and the non-woven fabric; the pressing roller 23 is a three-piece pressing roller 23, which is connected with the downstream of the wrapping and folding module, the surface of the roller body is provided with anti-slip patterns, and the pressure is adjusted by a cylinder drive; when the cotton core wrapped with non-woven fabric passes through the pressing roller 23, the three-piece structure is matched with the shape of the cotton core, and the cotton core is uniformly pressed from the circumference, so that the outer non-woven fabric is firmly attached to the cotton core, avoiding the preliminary attachment of the non-woven fabric from falling off or shifting during subsequent processing.
[0025] In one embodiment, the forming and transferring mechanism 3 comprises a forming cutter 31 and a transfer drum 32, the forming cutter 31 is arranged downstream of the pressing roller 23; the transfer drum 32 is provided with holes for adsorbing and transferring the cotton core cut by the forming cutter 31.
[0026] Specifically, the forming cutter 31 is made of hard alloy material and is arranged downstream of the pressing roller 23. The cutter is driven by a cylinder to realize reciprocating cutting action. The shape of the cutter blade is consistent with the preset shape of the cotton core. The cutting frequency can be adjusted according to the production speed. When the coated cotton core is transported to the cutter position, the cutter quickly descends to cut the preset size and shape of the cotton core monomer. The transfer drum 32 is a cylindrical structure, and a plurality of negative pressure adsorption holes 4102 are uniformly distributed on the surface. A negative pressure cavity is arranged inside and connected with an external negative pressure system. The axis of the transfer drum 32 is parallel to the cutting plane of the forming cutter 31, and the distance between the surface of the transfer drum 32 and the output end of the cutter is less than or equal to 5 mm. After the forming cutter 31 cuts the cotton core monomer, the transfer drum 32 rotates to the corresponding position, the negative pressure adsorption holes generate negative pressure to adsorb and fix the cotton core monomer on the drum surface. Then, the cotton core monomer is transferred to the downstream conveying negative pressure groove 41 through the rotation of the drum body, realizing the non-contact transfer of the cotton core and avoiding the deformation of the core body.
[0027] Further, the sewing conveying mechanism 4 comprises a conveying negative pressure groove 41, a cotton thread sewing machine 42 and a negative pressure adsorption conveyor 43. The conveying negative pressure groove 41 is connected with the transfer drum 32. The cotton thread sewing machine 42 is arranged between the conveying negative pressure groove 41 and the negative pressure adsorption conveyor 43.
[0028] In the embodiment, the conveying negative pressure groove 41 is connected with the output end of the transfer drum 32, and a negative pressure channel is arranged inside the groove body. A conveying belt 4101 is arranged on the groove body, and a plurality of negative pressure adsorption holes 4102 are arranged on the surface of the conveying belt 4101. The cotton core monomer conveyed by the transfer drum 32 is stably received by the negative pressure adsorption, and the cotton cores are sequentially and spacedly arranged to avoid mutual collision or stacking during the conveying process. The cotton thread sewing machine 42 is an automatic thread breaking sewing machine with mature technology on the market, which is arranged between the conveying negative pressure groove 41 and the negative pressure adsorption conveyor 43. The needle position of the sewing machine is aligned with the central axis of the cotton core monomer. When the cotton core monomer is conveyed to the lower part of the sewing machine through the conveying negative pressure groove 41, the sewing machine automatically threads and linearly sews along the length direction of the cotton core, thereby enhancing the structural stability of the cotton core and preventing core scattering during use. The negative pressure adsorption conveyor 43 is composed of a conveying belt, a negative pressure cavity and a driving roller. The surface of the conveying belt is provided with negative pressure adsorption holes 4102, which are connected with the output end of the sewing machine. The sewed cotton core is received by the conveying belt and fixed on the belt by negative pressure adsorption. The driving roller drives the belt to move at a constant speed, thereby stably conveying the cotton core to the finished product cutting mechanism 5. The conveying speed is synchronized with the sewing speed of the sewing machine.
[0029] In one embodiment, the finished product cutting mechanism 5 comprises a cotton rod cutter 51, which is connected with the negative pressure adsorption conveyor 43.
[0030] Specifically, the finished product cutting mechanism 5 is used to cut the stitched cotton core to form a finished product, and the specific structure is a tampon cutting knife 51: a rotary cutting knife is used, which is connected with the output end of the negative pressure adsorption conveyor 43, the cutting knife is made of high-speed steel, and the cutting edge is subjected to quenching treatment; the cutting position of the cutting knife corresponds to the stitching interval of the cotton core, the position of the cotton core conveying is detected through an encoder, when the cotton core reaches the preset cutting point, the cutting knife rotates at high speed to cut the cotton core, and the sanitary tampon core product with the same length is formed. The finished product after cutting is conveyed to the collecting device through the discharge chute.
[0031] The application also provides a sanitary tampon core forming method comprising the sanitary tampon core forming device. S1, the combed roving raw material is placed in the storage barrel 11 and is pulled to the yarn conveying module 14 through the yarn pulling module 12; S2, the parameters of the yarn drawing frame 13 are set according to the width W and the thickness H of the target cotton core, the yarn supply amount is controlled through the yarn conveying module 14, and the excess yarn is cut off through the cutting function of the yarn conveying module 14; S3, the yarn conveying module 14 sends the appropriate amount of yarn into the yarn drawing frame 13, and the combined yarn is pressed into a tampon-shaped core body through the pressing roller of the drawing frame; S4, the tampon-shaped core body is conveyed to the wrapping and folding module 22 through the traction wheel 21 and is wrapped and attached with the outer non-woven fabric; S5, the wrapped tampon-shaped core body is fixed through the pressing roller 23 and then the cotton core with a preset shape is cut out through the forming cutting knife 31; S6, the formed cotton core is adsorbed and transferred to the conveying negative pressure groove 41 through the transfer drum 32, so that the cotton core is conveyed in sequence and at intervals; S7, the cotton core is sent into the cotton thread sewing machine 42 through the conveying negative pressure groove 41, and the cotton thread sewing is completed; S8, the stitched cotton core is conveyed to the tampon cutting knife 51 through the negative pressure adsorption conveyor 43, and the sanitary tampon core product is cut off through the tampon cutting knife 51.
[0032] In the specific implementation process, a plurality of volumes of combed roving raw materials are placed in corresponding storage barrels 11 respectively, the damping device at the bottom of the storage barrel 11 and the tension control device and deviation rectifier mechanism of the yarn pulling module are adjusted to ensure that the yarn output is stable, the tension is uniform and there is no deviation; according to the width W and thickness H of the target cotton core, the controller is used to set the pressure of the compression roller of the yarn drawing frame 13 and the yarn supply quantity of the yarn conveying module, the yarn conveying module starts the cutting function to cut off the excess yarn for recycling; the yarn pulling module starts to pull the roving in the storage barrel 11 to the collection channel of the yarn conveying module, the yarn conveying module sends the yarn of the adaptive quantity into the yarn drawing frame 13, and the compression roller compresses the converged yarn into a cotton sliver core body at a preset pressure; the cotton sliver core body is conveyed to the wrapping and folding module through the traction wheel 21, the outer layer of non-woven fabric is guided by the wrapping and folding guide wheel, and is folded and wrapped outside the cotton core by the three-piece wrapping plate, so that the preliminary lamination of the core body and the non-woven fabric is realized; the wrapped cotton sliver core body enters the three-piece compression roller 23, the compression roller 23 compresses the cotton core in the circumferential direction at a preset pressure, so that the non-woven fabric is firmly laminated with the cotton core, and then is conveyed to the forming cutter 31, the cutter cuts the cotton core monomer according to the preset shape; the transfer drum 32 adsorbs the cut cotton core monomer through the negative pressure adsorption hole 4102 on the surface, and transfers the cotton core to the conveying negative pressure groove 41 through the drum rotation, the conveying negative pressure groove 41 conveys the cotton core in sequence through negative pressure adsorption; the cotton core monomer is sent into the cotton sewing machine 42 through the conveying negative pressure groove 41, the sewing machine completes cotton sewing along the length direction of the cotton core to enhance the stability of the core body; the sewn cotton core is conveyed to the cotton sliver cutter 51 through the negative pressure adsorption conveyor 43, the cutter cuts the cotton core according to the preset length to form a sanitary cotton sliver core product, and the product is collected through the discharge groove.
[0033] The sanitary cotton sliver core forming method and the processing device thereof can realize the production of cotton cores with different widths W and thicknesses H by adjusting the yarn supply quantity only without replacing the cotton core substrate, completely solve the problem of replacing the cotton core thickness in the traditional process, greatly reduce the material replacement time, improve the production continuity and efficiency, and reduce the equipment fluctuation risk; the cotton sliver core body is formed by compressing the combed roving through the compression roller of the drawing frame, the compression structure after the yarn convergence significantly improves the toughness of the cotton core, and effectively reduces the risk of fiber falling off in the production and use process; meanwhile, the cooperation of the three-piece wrapping plate and the three-piece compression roller in the wrapping and compression mechanism realizes the close lamination of the outer layer of non-woven fabric and the cotton core, the negative pressure adsorption design of the forming cutter and the transfer drum ensures the regularity of the shape of the cotton core, the precise control of sewing and product cutting further improves the product consistency; the five mechanisms arranged in sequence along the processing direction form a complete production link, the linkage design of components such as the traction wheel, the conveying negative pressure groove and the negative pressure adsorption conveyor realizes the automatic conveying and processing of the cotton core from the raw material to the finished product, reduces the manual intervention, reduces the operation error, improves the equipment operation stability, and adapts to the scale production demand.
[0034] The above merely describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-described embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.
Claims
1. A tampon pledget forming apparatus, comprising: The application relates to a sanitary cotton core forming device. The cotton core forming mechanism, the wrapping and pressing mechanism, the forming and transferring mechanism, the sewing and conveying mechanism and the finished product cutting mechanism are sequentially arranged along the product processing direction.
2. The sanitary tampon core forming and processing apparatus according to claim 1, wherein The cotton core forming mechanism comprises a plurality of storage barrels for storing the carded roving raw materials, a yarn traction module, a yarn drawing frame and a yarn conveying module.
3. The sanitary tampon core forming and processing apparatus according to claim 2, wherein The wrapping and pressing mechanism comprises a traction wheel, a wrapping and folding module and a pressing roller.
4. The sanitary tampon core forming and processing apparatus according to claim 3, wherein The wrapping and folding module comprises a wrapping and folding guide wheel and a three-piece wrapping plate.
5. The sanitary tampon core forming and processing apparatus according to claim 3, wherein The pressing roller is a three-piece pressing roller for pressing and fixing the outer layer non-woven fabric and the cotton core.
6. The sanitary tampon core forming and processing apparatus according to claim 2, wherein The forming and transferring mechanism comprises a forming cutter and a transferring drum.
7. The apparatus according to claim 6, wherein The sewing and conveying mechanism comprises a conveying negative pressure groove, a cotton thread sewing machine and a negative pressure suction conveyor.
8. The tampon core forming and processing apparatus according to claim 7, wherein The finished product cutting mechanism comprises a cotton core cutter.
9. A tampon pledget forming method based on the tampon pledget forming apparatus according to any one of claims 1 to 8, characterized by, The cotton core cutter is connected with the negative pressure suction conveyor. The application also discloses a sanitary cotton core forming method. (1) The carded roving raw materials are placed in the storage barrels and are drawn to the yarn conveying module through the yarn traction module; (2) The yarn drawing frame parameters are set according to the width W and the thickness H of the target cotton core, the yarn supply amount is controlled through the yarn conveying module, and the excess yarn is cut off through the cutting function of the yarn conveying module; (3) The yarn conveying module sends the appropriate amount of yarn into the yarn drawing frame, and the yarn is pressed into a cotton core through the pressing roller of the yarn drawing frame; (4) The cotton core is conveyed to the wrapping and folding module through the traction wheel and is wrapped and adhered with the outer layer non-woven fabric; (5) The wrapped cotton core is pressed and fixed through the pressing roller, and the cotton core with a preset shape is cut through the forming cutter; (6) The formed cotton core is adsorbed and transferred to the conveying negative pressure groove through the transferring drum, and the cotton core is conveyed in sequence; (7) The cotton core is sent into the cotton thread sewing machine through the conveying negative pressure groove, and the cotton thread sewing is completed; (8) The sewed cotton core is conveyed to the cotton core cutter through the negative pressure suction conveyor, and the sanitary cotton core product is formed through the cotton core cutter.