A continuous sterilization device for water-jet non-woven fabric roll-pressing liquid immersion

Abstract

This invention relates to the field of sterilization equipment technology, and in particular to a continuous sterilization device for spunlace nonwoven fabric using a roller-pressing method for immersion in disinfectant solution. The device includes an outer support frame with an outer cover fixedly connected to its outer side, an inner support frame fixedly connected to the inner wall of the outer cover, conveyor rollers at both ends of the outer support frame, a disinfectant solution tank fixedly connected to the bottom of the outer cover, a linked twisting mechanism disposed within the disinfectant solution tank and connected to the conveyor rollers for continuous sterilization, used to twist and mix the spunlace nonwoven fabric during the immersion in disinfectant solution process, and an inclined return plate detachably connected to the inner wall of the outer cover on both sides. This invention, through components such as the outer support frame, disinfectant solution tank, linked twisting mechanism, inclined return plate, extrusion rollers, and high-temperature sterilization lamp assembly, achieves twisting and mixing of the spunlace nonwoven fabric, thereby solving the problems of disinfectant solution spillage, waste, and uneven immersion in traditional devices. It has the advantages of reducing disinfectant solution waste, improving immersion uniformity, and enhancing sterilization reliability.

Description

Technical Field

[0001] This invention relates to the field of sterilization equipment technology, and in particular to a spunlace nonwoven fabric roller-pressed continuous sterilization device for immersion in pharmaceutical solution. Background Technology

[0002] In the manufacturing process of spunlace nonwoven fabrics, the continuous sterilization process is crucial to product quality. Traditional roller-type chemical impregnation devices typically use a chemical tank immersion method, guiding the nonwoven fabric into a liquid environment containing a bactericide. The immersion process allows the bactericide to initially penetrate into the fiber network, achieving broad contact between the bactericide and microorganisms. Subsequently, pressure rollers apply pressure to promote uniform distribution of the bactericide within the nonwoven fabric, ensuring comprehensive sterilization coverage while squeezing out excess bactericide to control liquid content, balancing sterilization efficiency with reducing the burden of subsequent drying. However, this type of device has significant drawbacks in actual continuous operation. During the movement and compression of the nonwoven fabric, the bactericide easily spills off the fabric surface, resulting in significant waste of the bactericide and contamination of the surrounding environment, significantly increasing the complexity and time cost of cleaning and maintenance. Furthermore, uneven distribution of the bactericide within the tank often prevents sufficient contact with the nonwoven fabric, leading to poor impregnation in some areas and failing to achieve the expected sterilization standards, thus affecting the hygienic and safety performance of the final product. Existing technical solutions have failed to effectively address core issues such as spillage, waste, and uneven wetting of the disinfectant solution. An innovative design is urgently needed to optimize the utilization efficiency of the disinfectant solution and improve the reliability of sterilization. Summary of the Invention

[0003] The purpose of this application is to provide a spunlace nonwoven fabric roller-pressed continuous sterilization device for drug immersion, which has the advantages of reducing drug waste, improving immersion uniformity and sterilization reliability.

[0004] The present invention provides a spunlace nonwoven fabric roller-pressed continuous sterilization device for drug impregnation, which adopts the following technical solution: A spunlace nonwoven fabric roller-pressed continuous sterilization device for liquid impregnation includes: An outer support is fixedly connected to an outer cover, and an inner support is fixedly connected to the inner wall of the outer cover. Conveying rollers are provided at both ends of the outer support. The medicine tank is fixedly connected to the bottom inside the outer cover; The linkage kneading mechanism is set inside the liquid tank and is connected to the conveyor roller for transmission. It is used to knead and mix the spunlace nonwoven fabric during the continuous sterilization process of the liquid impregnation. The inclined return plate is detachably connected to the inner wall of the outer cover on both sides, and its bottom is clipped onto the top of the liquid tank. The inclined return plate is equipped with a reciprocating linkage cleaning mechanism. The linkage cleaning mechanism is intermittently driven by the linkage kneading mechanism, and the reset is completed through the linkage kneading mechanism. The extrusion roller is rotatably connected to the inner wall of the outer casing and is positioned on top of the inclined return plate; The high-temperature sterilization lamp assembly is fixedly connected to the inner support frame.

[0005] Furthermore, this application also proposes that the linkage kneading mechanism includes a horizontal rotating rod, a vertical rotating rod, a kneading ball, and a powerful magnet. The horizontal rotating rod is rotatably connected to the medicine tank and one end of it extends to the outside of the outer cover. A sleeve fixedly connected to the inner wall of the medicine tank is fitted on the outside of the horizontal rotating rod. Multiple vertical rotating rods are provided, all of which are rotatably connected to the sleeves. A bevel gear set is connected between the horizontal rotating rod and the vertical rotating rod. The kneading ball is fixedly connected to the vertical rotating rod. A pulley set is provided between the conveyor roller and the horizontal rotating rod. A powerful magnet is fixedly connected to the conveyor belt of the pulley set.

[0006] Furthermore, this application also proposes that the kneading ball has a hemispherical structure with multiple arc-shaped protrusions on its surface.

[0007] Furthermore, this application also proposes that the linkage cleaning mechanism includes a guide channel, an iron block, a sliding plate, and a lifting scraper. The guide channel is opened on both sides of the inner wall of the inclined return plate. The sliding plate is slidably connected to the guide channel. The iron block is set on the outer side of the inclined return plate and is fixedly connected to the sliding plate with a connecting block. A miniature cylinder is fixedly connected inside the sliding plate. The output end of the miniature cylinder is fixedly connected to the lifting scraper. The lifting scraper is slidably connected to the inner wall of the sliding plate.

[0008] Furthermore, this application also proposes that the iron block and the strong magnet are intermittently attracted to each other to complete the reset, and the skateboard slides down under the action of gravity.

[0009] Furthermore, this application also proposes that the inner support is an inverted trapezoidal structure covered with a guide plate, and a filter screen is fixedly connected to the bottom side of the inner support.

[0010] Furthermore, this application also proposes that a first receiving roller, a second receiving roller, and a tensioning roller are rotatably connected to the inner wall of the outer cover, with the tensioning roller located on the bottom side of the conveyor roller.

[0011] Furthermore, this application also proposes that an inlet pipe is fixedly connected to the top of the outer cover, and a drain pipe is fixedly connected to the bottom of the medicine tank.

[0012] Furthermore, this application also proposes that a hot air pipe is fixedly connected inside the medicine tank, and multiple air vents are opened on the hot air pipe.

[0013] Furthermore, this application also proposes that the skateboard does not come into contact with the extrusion roller during movement.

[0014] In summary, the present invention has at least one of the following beneficial technical effects: 1. Through components such as an external support, a liquid tank, a linkage kneading mechanism, an inclined return plate, an extrusion roller, and a high-temperature sterilization lamp assembly, the kneading and mixing of the spunlace nonwoven fabric is achieved, thereby solving the problems of liquid spillage, waste, and uneven wetting in traditional devices. It has the advantages of reducing liquid waste, improving wetting uniformity, and sterilization reliability. 2. The movement of the spunlace nonwoven fabric drives the reciprocating motion of the linked twisting mechanism and the linked cleaning mechanism. When the spunlace nonwoven fabric is soaked, the linked twisting mechanism kneads and stirs the medicine, ensuring that the spunlace nonwoven fabric is in full contact with the medicine. The overall mechanism is ingeniously designed to meet people's needs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a spunlace nonwoven fabric roller-pressed continuous sterilization device for immersion in pharmaceutical solution in this embodiment.

[0016] Figure 2 This is a schematic diagram of the internal three-dimensional structure of a spunlace nonwoven fabric roller-pressed continuous sterilization device for immersion in pharmaceutical solution in this embodiment.

[0017] Figure 3 This is a partial cross-sectional view of a spunlace nonwoven fabric roller-pressed continuous sterilization device for immersion in pharmaceutical solution in this embodiment.

[0018] Figure 4 yes Figure 2 Enlarged structural diagram at point A in the middle.

[0019] Figure 5 This is a partial cross-sectional view of the linkage kneading mechanism in this embodiment.

[0020] Figure 6 This is a partial cross-sectional view of the linkage cleaning mechanism in this embodiment.

[0021] Explanation of reference numerals in the attached figures: 1. Outer support; 11. Outer cover; 111. Liquid inlet pipe; 12. Inner support; 121. Filter screen; 13. Conveyor roller; 14. First receiving roller; 15. Second receiving roller; 16. Tensioning roller; 2. Medicine tank; 21. Drain pipe; 22. Hot air pipe; 3. Linked kneading mechanism; 31. Horizontal rotating rod; 32. Vertical rotating rod; 33. Bevel gear set; 34. Kneading ball; 35. Pulley set; 36. Strong magnet; 4. Inclined return plate; 41. Guide groove; 42. Iron block; 43. Connecting block; 44. Slide plate; 45. Miniature cylinder; 46. Lifting scraper; 5. Squeezing roller; 6. High-temperature disinfection lamp assembly. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-6 The present invention will be described in further detail below.

[0023] This invention discloses a spunlace nonwoven fabric roller-pressed continuous sterilization device for immersion in pharmaceutical solution.

[0024] It should be noted that, in the description of this invention, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] Reference Figures 1-6 A spunlace nonwoven fabric roller-pressed continuous sterilization device for drug impregnation includes: An outer support 1 is fixedly connected to an outer cover 11 on its outer side, and an inner support 12 is fixedly connected to the inner wall of the outer cover 11. Conveying rollers 13 are provided at both ends of the outer support 1. The liquid medicine tank 2 is fixedly connected to the bottom of the outer cover 11; The linkage kneading mechanism 3 is set inside the liquid tank 2 and is connected to the conveyor roller 13 for transmission. It is used to knead and mix the spunlace nonwoven fabric during the continuous sterilization process of the liquid impregnation. The inclined return plate 4 is detachably connected to the inner wall of the outer cover 11 on both sides, and its bottom is locked on the top of the liquid tank 2. The inclined return plate 4 is equipped with a reciprocating linkage cleaning mechanism. The linkage cleaning mechanism is intermittently driven by the linkage kneading mechanism 3, and the reset is completed through the linkage kneading mechanism 3. The extrusion roller 5 is rotatably connected to the inner wall of the outer cover 11 and is set on the top of the inclined return plate 4; The high-temperature disinfection lamp assembly 6 is fixedly connected to the inner bracket 12.

[0026] For ease of understanding, the following explains some key terms in this embodiment: The outer support 1 serves as the external support structure of the device, used to support and secure all components of the device. The outer cover 11 is fixedly connected to the outside of the outer support 1, forming a semi-enclosed space to accommodate and protect the internal working components while preventing liquid splashing. The inner support 12 is fixedly connected to the inner wall of the outer cover 11, providing further support and mounting positions for the internal functional components. Conveyor rollers 13 are located at both ends of the outer support 1, used to guide the continuous transport of the spunlace nonwoven fabric inside the device.

[0027] The medicine tank 2 is fixedly connected to the bottom of the outer cover 11 and is used to hold the bactericidal medicine. It is the main container for impregnating the spunlace nonwoven fabric with the medicine.

[0028] The linkage twisting mechanism 3 is installed inside the liquid tank 2 and is connected to the conveyor roller 13 for transmission. Its function is to twist the spunlace nonwoven fabric as it passes through the liquid tank 2, so as to promote the full penetration of the liquid into the nonwoven fibers and mix the liquid to ensure uniform liquid concentration.

[0029] The inclined return plate 4 is detachably connected to the inner wall of the outer cover 11 on both sides, and its bottom is clipped onto the top of the medicine tank 2. This structural design allows excess medicine squeezed off the spunlace nonwoven fabric to flow back to the medicine tank 2 along the inclined direction, reducing medicine waste.

[0030] The linkage cleaning mechanism is located inside the inclined return plate 4 and is intermittently connected to the linkage kneading mechanism 3, which completes the resetting process. This mechanism is used to clean any residual medicine that may accumulate on the surface of the inclined return plate 4, ensuring that the return channel is unobstructed and accelerating the return speed.

[0031] The extrusion roller 5 is rotatably connected to the inner wall of the outer cover 11 and is positioned on top of the inclined return plate 4. Its function is to extrude the spunlace nonwoven fabric after it has been soaked in the chemical solution, remove excess chemical solution, control the liquid content of the nonwoven fabric, and further promote the uniform distribution of the chemical solution.

[0032] The high-temperature sterilization lamp assembly 6 is fixedly connected to the inner support 12 and is used to perform high-temperature sterilization on the spunlace nonwoven fabric after it has been soaked in the medicine solution and squeezed, thereby improving the sterilization effect.

[0033] This embodiment provides a spunlace nonwoven fabric roller-pressed continuous sterilization device for chemical impregnation. The overall structure of the device includes an outer support 1, to which an outer cover 11 is fixedly connected, forming the main frame and protective shell of the device. An inner support 12 is fixedly connected to the inner wall of the outer cover 11 to support the internal functional components. Conveyor rollers 13 are provided at both ends of the outer support 1 to guide the spunlace nonwoven fabric into and out of the device, enabling continuous operation.

[0034] The disinfectant tank 2 is fixedly connected to the inner bottom of the outer cover 11 and is used to store the disinfectant solution. The disinfectant tank 2 can be a simple rectangular tank, and its internal volume is designed according to actual production needs. The disinfectant solution can be replenished into the disinfectant tank 2 through an external pipe.

[0035] The linked twisting mechanism 3 is installed inside the chemical solution tank 2 and is connected to the conveyor roller 13 via a transmission mechanism. During the continuous sterilization process of the spunlace nonwoven fabric impregnated with chemical solution, this mechanism twists the spunlace nonwoven fabric and mixes the chemical solution, applying mechanical action to the passing spunlace nonwoven fabric to loosen its fiber structure, thereby promoting chemical penetration. Simultaneously, the rotation of the linked twisting mechanism 3 also drives the flow of the chemical solution, preventing sedimentation or stratification and ensuring uniform chemical solution distribution.

[0036] The inclined return plate 4 is detachably connected to the inner wall of the outer cover 11 on both sides, and its bottom is clipped onto the top of the medicine tank 2. The inclined return plate 4 can be made of a smooth metal plate or plastic plate, and its tilt angle is designed to allow the medicine to flow back smoothly. The inclined return plate 4 is equipped with a reciprocating linkage cleaning mechanism inside. This linkage cleaning mechanism is intermittently driven by the linkage kneading mechanism 3, and reset is completed through the linkage kneading mechanism 3.

[0037] The extrusion roller 5 is rotatably connected to the inner wall of the outer cover 11 and is positioned on top of the inclined return plate 4. The extrusion roller 5 can be made of rubber or metal, and its surface can be designed to be smooth or textured to meet the extrusion requirements of different types of spunlace nonwoven fabrics. After the spunlace nonwoven fabric is impregnated with the chemical solution, the excess chemical solution is removed by the extrusion action of the extrusion roller 5, the liquid content is controlled, and the chemical solution is further pressed evenly into the interior of the nonwoven fabric.

[0038] The high-temperature sterilization lamp assembly 6 is fixedly connected to the inner support 12. The high-temperature sterilization lamp assembly 6 can consist of multiple ultraviolet lamps or infrared heating lamps, and its installation position ensures effective irradiation or heating of the extruded spunlace nonwoven fabric, thereby achieving high-temperature sterilization. The high-temperature sterilization lamp assembly 6 can be evenly distributed above the spunlace nonwoven fabric to ensure sterilization coverage.

[0039] This application's spunlace nonwoven fabric roller-pressed continuous sterilization device for chemical immersion effectively solves the problem of uneven chemical immersion in existing technologies by setting up a linked twisting mechanism 3 to twist and mix the chemical solution in the chemical tank 2, ensuring full penetration of the chemical solution. Simultaneously, the cooperation between the inclined return plate 4 and the linked cleaning mechanism, along with the application of the squeeze roller 5, effectively recovers the chemical solution spilled during the squeezing process, reducing waste and simplifying subsequent cleaning. Therefore, this device improves the utilization rate of the chemical solution and the uniformity and thoroughness of the sterilization process.

[0040] In some embodiments described above, the spunlace nonwoven fabric is tucked and mixed within the liquid tank 2 by a linked tucking mechanism 3 to promote thorough impregnation of the liquid. However, if the design of the linked tucking mechanism 3 is not precise enough, it may result in uneven tucking and low contact efficiency between the liquid and the nonwoven fabric, thereby affecting the subsequent sterilization effect and product quality. Especially in continuous production modes, ensuring the efficiency, uniformity, and stability of the tucking process is crucial for achieving the ideal impregnation effect.

[0041] In this regard, refer to Figures 1-6This application further proposes a specific structure for the linkage twisting mechanism 3, which includes a horizontal rotating rod 31, a vertical rotating rod 32, a twisting ball 34, and a powerful magnet 36. The horizontal rotating rod 31 is rotatably connected to the medicine tank 2, with one end extending to the outside of the outer cover 11 for external driving or maintenance. A sleeve fixedly connected to the inner wall of the medicine tank 2 is fitted onto the outer side of the horizontal rotating rod 31, providing stable rotational support for the vertical rotating rod 32. Multiple vertical rotating rods 32 are provided, all rotatably connected to the sleeves, and these vertical rotating rods 32 are typically arranged in an array to cover the entire width of the spunlace nonwoven fabric. The horizontal rotating rod 31 and the vertical rotating rod 32 are connected by a bevel gear set 33, which effectively converts the rotational motion of the horizontal rotating rod 31 into the rotational motion of the vertical rotating rod 32, thus changing the direction of power transmission. The twisting ball 34 is fixedly connected to the vertical rotating rod 32, serving as a component that directly contacts and twists the spunlace nonwoven fabric. The twisting ball 34 is typically made of a wear-resistant, corrosion-resistant material that does not damage the nonwoven fabric, such as silicone or polyurethane. Its surface can be designed with a specific texture to enhance the twisting effect. A pulley assembly 35 is provided between the conveyor roller 13 and the horizontal rotating rod 31. This pulley assembly 35 is responsible for synchronously transmitting the movement of the conveyor roller 13 to the horizontal rotating rod 31, thereby ensuring that the movement of the twisting mechanism 3 is consistent with the conveying speed of the spunlace nonwoven fabric. A powerful magnet 36 is fixedly connected to the conveyor belt of the pulley assembly 35. During the operation of the device, the powerful magnet 36 can be used to intermittently attract the iron block 42 in the linkage cleaning mechanism, thereby resetting the linkage cleaning mechanism and further improving the automation and collaborative working capabilities of the device. It should be noted that in order to control the rotation speed of the twisting ball 34, a speed-changing mechanism can be installed at the output end of the conveyor roller 13 as needed. The speed-changing mechanism is existing technology and will not be described in detail.

[0042] Through the above technical solution, the structure of the linkage twisting mechanism 3 has been refined. It consists of a horizontal rotating rod 31, a vertical rotating rod 32, a twisting ball 34, and a bevel gear set 33, which work together to form a highly efficient and uniform twisting system. The horizontal rotating rod 31 is synchronously driven by the conveyor roller 13 via the pulley set 35, ensuring precise matching between the twisting action and the conveying speed of the spunlace nonwoven fabric, effectively avoiding problems of insufficient or excessive twisting in certain areas. Multiple vertical rotating rods 32 and the twisting balls 34 fixedly connected to them can comprehensively and thoroughly twist the spunlace nonwoven fabric, significantly improving the uniformity and efficiency of the drug impregnation, thereby ensuring the stability and reliability of the sterilization effect. Furthermore, the powerful magnet 36 installed on the conveyor belt of the pulley set 35 provides precise intermittent drive signals or reset mechanisms for other linkage mechanisms in the device, further enhancing the automation level and operational synergy of the entire device, making the continuous sterilization process of drug impregnation on the spunlace nonwoven fabric more efficient and stable.

[0043] In some embodiments described above in this application, the linked twisting mechanism 3 is used to twist and mix the spunlace nonwoven fabric during the continuous sterilization process of the chemical solution impregnation. However, if the twisting ball 34 adopts a simple smooth spherical structure, it may result in poor twisting effect on the spunlace nonwoven fabric, uneven chemical solution impregnation, or local stress concentration on the fabric during the twisting process, thereby affecting the full penetration of the chemical solution and the overall sterilization efficiency.

[0044] In this regard, refer to Figures 1-6 This application further proposes that the above-mentioned kneading ball 34 has a hemispherical structure and its surface is provided with multiple arc-shaped protrusions.

[0045] The twisting ball 34 is designed with a hemispherical structure. Compared to traditional round or irregular shapes, the hemispherical structure provides a more stable contact surface, allowing for more effective twisting and compression when in contact with the spunlace nonwoven fabric, while reducing excessive stretching or damage to the fabric. Furthermore, as the hemispherical structure rotates within the chemical tank 2, its unique geometry helps generate specific hydrodynamic effects in the chemical solution, promoting full contact and penetration between the solution and the spunlace nonwoven fabric. The surface of the twisting ball 34 features multiple arc-shaped protrusions. These protrusions are not simply sharp structures, but rather have a smoothly transitioned arc design. This design aims to increase the friction between the twisting ball 34 and the spunlace nonwoven fabric, applying a more uniform and gentler mechanical action to the fabric during twisting, thereby avoiding tearing or fiber damage. Simultaneously, the arc-shaped protrusions effectively agitate the chemical solution, forming micro-vortices on the surface of the spunlace nonwoven fabric, further enhancing the penetration and mixing effect of the solution, ensuring that the solution can evenly wet every area of ​​the spunlace nonwoven fabric. These arc-shaped protrusions can be evenly distributed on the hemispherical surface, or they can be arranged in a specific manner as needed to optimize the kneading and mixing effect.

[0046] By employing the aforementioned technical solution, the twisting ball 34 is designed as a hemispherical structure with surface arc-shaped protrusions, significantly improving the twisting and wetting effect of the spunlace nonwoven fabric in the chemical solution. The hemispherical structure provides stable twisting contact, while the arc-shaped protrusions apply a more uniform and effective mechanical action to the spunlace nonwoven fabric, avoiding the problems of incomplete twisting or localized damage that may occur with traditional smooth balls. During the twisting process, the arc-shaped protrusions effectively increase the friction between the fabric and the twisting ball 34, promoting the penetration and flow of the chemical solution between the fibers of the spunlace nonwoven fabric, forming a more thorough mixing flow. This ensures that the chemical solution can more quickly and evenly penetrate the deep structure of the spunlace nonwoven fabric. This not only improves the efficiency and uniformity of chemical solution wetting but also lays a good foundation for the subsequent continuous sterilization process, ultimately enhancing the overall device's chemical wetting and sterilization effect on the spunlace nonwoven fabric.

[0047] In some embodiments described above in this application, a reciprocating linkage cleaning mechanism is proposed to be installed inside the inclined return plate 4 for cleaning the inclined return plate 4. However, in its implementation, if the structure of the linkage cleaning mechanism is not properly designed, the cleaning effect may be poor, and the residual medicine or impurities on the inclined return plate 4 may not be effectively removed, thereby affecting the normal return of the medicine, or even causing medicine contamination or blockage, reducing the overall operating efficiency and cleanliness of the device.

[0048] In this regard, refer to Figures 1-6 This application further proposes a linkage cleaning mechanism, specifically including a guide groove 41, an iron block 42, a sliding plate 44, and a lifting scraper 46. The guide groove 41 is formed on both sides of the inner wall of the inclined return plate 4, providing precise guidance for the movement of the sliding plate 44. The guide groove 41 can be designed as a U-shaped groove or a dovetail groove to ensure the stability and low friction of the sliding plate 44 during reciprocating motion. The sliding plate 44 is slidably connected to the guide groove 41, serving as the main body of the linkage cleaning mechanism, bearing and driving other cleaning components to move along the surface of the inclined return plate 4. The iron block 42 is located on the outer side of the inclined return plate 4, serving as a magnetic coupling point to drive or assist the movement of the sliding plate 44 through external magnetic force. The iron block 42 is fixedly connected to the sliding plate 44 by a connecting block 43, which passes through the wall thickness of the inclined return plate 4, transmitting the external force on the iron block 42 to the sliding plate 44, thereby realizing the linkage of the sliding plate 44. A miniature cylinder 45 is fixedly connected inside the slide plate 44. This miniature cylinder 45 acts as an actuator, providing the linear motion required by the lifting scraper 46. The output end of the miniature cylinder 45 is fixedly connected to the lifting scraper 46, allowing the lifting scraper 46 to extend or retract as needed. The lifting scraper 46 is slidably connected to the inner wall of the slide plate 44, and its front end is typically equipped with a scraper or blade for directly contacting and scraping away residual liquid on the surface of the inclined return plate 4. The sliding connection design of the lifting scraper 46 allows it to switch between scraping and non-scraping states under the drive of the micro cylinder 45, thereby achieving effective cleaning of the inclined return plate 4. Specifically, when the slide plate 44 slides down, the lifting scraper 46 moves down; when the slide plate 44 returns to its original position, the lifting scraper 46 moves up, preventing residual liquid from accumulating on the other side of the lifting scraper 46. Compared with the prior art, the linkage cleaning mechanism uses the transmission power of the spunlace nonwoven fabric as a power source and is linked with the linkage twisting mechanism 3, so that the mechanical structures of the entire device cooperate with each other. Moreover, the linkage operation of the linkage cleaning mechanism and the linkage twisting mechanism 3 conforms to the operating logic of continuous sterilization operation. This not only allows the sterilizing liquid to fully contact the spunlace nonwoven fabric, improving the sterilization effect, but also allows the sterilizing liquid after the spunlace nonwoven fabric is squeezed to be recycled. Compared with the prior art, the structure of this application is simple and ingenious, realizing the structural combination between different functions, and the cost is lower.

[0049] Through the above technical solutions, the structure of the linkage cleaning mechanism has been clarified and optimized. The cooperation between the guide groove 41 and the slide plate 44 ensures the stable and controlled reciprocating motion of the cleaning components on the inclined return plate 4, avoiding deviation or jamming during the cleaning process. The design of the iron block 42 and the connecting block 43 allows the external driving force to be efficiently transmitted to the slide plate 44, simplifying the drive structure inside the liquid environment and improving the reliability of the mechanism. More importantly, the lifting scraper 46 driven by the micro cylinder 45 provides an active scraping function, which can effectively remove the liquid residue adhering to the surface of the inclined return plate 4. This active scraping mechanism ensures the cleanliness of the inclined return plate 4, thereby ensuring that the liquid can flow back to the liquid tank 2 smoothly and without obstruction, avoiding waste and contamination of the liquid. In addition, through the intermittent transmission connection and reset of the linkage kneading mechanism 3, the entire cleaning process is synchronized with the overall operating rhythm of the device, realizing efficient and automated cleaning, significantly improving the operating efficiency and cleanliness of the liquid circulation of the spunlace nonwoven fabric roller-type liquid immersion continuous sterilization device.

[0050] In some embodiments described above in this application, a linkage cleaning mechanism for cleaning the inclined return plate 4 is proposed. This mechanism achieves the cleaning function through components such as the guide groove 41, the slide plate 44, and the lifting scraper 46, and mentions that the reset is completed by the linkage kneading mechanism 3. However, in its implementation, how to ensure that the linkage cleaning mechanism can efficiently and reliably complete the reset action, and that its slide plate 44 can smoothly return to its initial position after cleaning to prepare for the next cleaning cycle, are technical details that need further clarification. If the reset mechanism is unclear or unreliable, it may lead to low cleaning efficiency and even affect the continuous operation of the entire device.

[0051] In this regard, refer to Figures 1-6 This application further proposes that the iron block 42 and the strong magnet 36 are intermittently attracted to each other to complete the reset, and the slide plate 44 slides down under the action of gravity.

[0052] Specifically, the iron block 42 is part of the linkage cleaning mechanism, located on the outside of the inclined return plate 4 and fixedly connected to the slide plate 44 via a connecting block 43. The powerful magnet 36 is part of the linkage kneading mechanism 3, fixedly connected to the conveyor belt of the pulley assembly 35. "Intermittent adsorption" refers to the periodic movement of the powerful magnet 36 along the conveyor belt of the pulley assembly 35. When it moves to a specific position opposite the iron block 42, a magnetic attraction is generated between them, resulting in a brief or continuous adsorption. This adsorption force is sufficient to pull the iron block 42 upwards, thereby causing the slide plate 44 connected to it to move upwards along the guide groove 41, achieving the reset of the linkage cleaning mechanism. The triggering of the reset action is synchronized with the operating rhythm of the linkage kneading mechanism 3, ensuring the periodic operation of the cleaning mechanism.

[0053] After the strong magnet 36 and the iron block 42 are released from their attraction, the slide plate 44 slides down the guide groove 41 of the inclined return plate 4 under the action of gravity. Since the inclined return plate 4 itself has a certain tilt angle, the slide plate 44 can move downward automatically and smoothly under the action of the gravity component. The speed of sliding down can be adjusted by factors such as the tilt angle of the inclined return plate 4, the coefficient of friction between the slide plate 44 and the guide groove 41, and the mass of the slide plate 44 itself, to ensure that the lifting scraper 46 can effectively scrape off the residual liquid on the inclined return plate 4 during the sliding process. In order to ensure the purity of the returned liquid, a vertical baffle can be set on the inclined return plate 4.

[0054] Through the above technical solution, the reset action of the linkage cleaning mechanism is achieved through intermittent adsorption between the iron block 42 and the powerful magnet 36, providing a simple, efficient, and non-contact reset mechanism. The powerful magnet 36, as a component of the linkage kneading mechanism 3, cleverly utilizes its movement to drive the reset of the linkage cleaning mechanism, avoiding additional drive components and simplifying the structure. Simultaneously, the sliding plate 44 slides down under gravity, further utilizing natural forces and reducing energy consumption and mechanical complexity. This design enables the reciprocating motion (reset and sliding) of the linkage cleaning mechanism to be achieved efficiently and reliably, ensuring that the inclined return plate 4 can be continuously and effectively cleaned, avoiding drug residue or blockage, thereby maintaining the continuity and efficiency of the drug immersion and sterilization process, and significantly improving the automation level and operational stability of the device.

[0055] In some embodiments of this application, during the impregnation and twisting process of the spunlace nonwoven fabric, the chemical solution may splash due to mechanical action, or fine impurities may be carried during the fabric transport. If these splashed chemicals or impurities directly contact the high-temperature sterilization lamp assembly 6 inside the device, they may not only affect the sterilization efficiency of the high-temperature sterilization lamp assembly 6, but may also cause surface contamination of the high-temperature sterilization lamp assembly 6, and even shorten its service life. In addition, if impurities in the chemical solution are not treated in time, they will affect the cleanliness of the chemical solution, thereby affecting the impregnation quality of the nonwoven fabric.

[0056] In this regard, refer to Figures 1-6 This application further proposes an optimized design for the inner support 12, specifically including: the inner support 12 is an inverted trapezoidal structure covered with a guide plate, and a filter screen 121 is fixedly connected to the bottom side of the inner support 12.

[0057] Specifically, the inner support 12 is designed as an inverted trapezoidal structure. This structure makes the upper part of the inner support 12 wider and the lower part narrower, and its inclined sides can serve as a natural guide surface. When the liquid medicine splashes due to kneading or conveying inside the device, or when the liquid medicine drips from the non-woven fabric, this liquid medicine will fall onto the inclined surface of the inner support 12 and be guided downwards to converge. This design effectively avoids the liquid medicine from directly splashing or dripping onto the high-temperature disinfection lamp assembly 6 supported by the inner support 12, thus providing physical protection for the high-temperature disinfection lamp assembly 6 and preventing it from being corroded or contaminated by the liquid medicine.

[0058] Building upon this, a guide plate covers the inverted trapezoidal structure of the inner support 12. This guide plate further enhances the flow of the disinfectant, ensuring that the disinfectant can smoothly slide down the surface of the inner support 12. The guide plate can be made of corrosion-resistant, high-temperature-resistant, and smooth-surfaced materials, such as stainless steel or plates with a Teflon coating, to reduce the adhesion and retention of the disinfectant and facilitate cleaning. The presence of the guide plate makes the disinfectant more concentrated and controllable during the reflux process, further isolating the high-temperature disinfection lamp assembly 6 from the disinfectant environment and ensuring the stable operation of the high-temperature disinfection lamp assembly 6.

[0059] Meanwhile, a filter screen 121 is fixedly connected to the bottom side of the inner support 12. When the liquid medicine is guided to the bottom of the inner support 12 by the guide plate, it will pass through the filter screen 121. The filter screen 121 can effectively intercept fiber debris, non-woven fabric lint, or other solid impurities that may be present in the liquid medicine. The pore size of the filter screen 121 can be selected according to actual needs to achieve filtration of impurities of different sizes. Typically, the filter screen 121 is made of stainless steel, which is easy to clean and replace, to ensure its filtration effect and durability in long-term use.

[0060] Through the above technical solution, the inverted trapezoidal structure of the inner support 12 and the guide plate covering it work together to effectively guide splashes or drips of the disinfectant solution back into the environment, preventing them from directly contacting the high-temperature disinfection lamp assembly 6. This protects the high-temperature disinfection lamp assembly 6 from corrosion or contamination by the disinfectant solution, extends its service life, and ensures the stability of the disinfection effect. Simultaneously, the filter screen 121 fixedly connected to the bottom of the inner support 12 performs preliminary filtration of the disinfectant solution during the backflow process, effectively removing fiber debris and impurities, maintaining the cleanliness of the solution, reducing secondary contamination of the spunlace nonwoven fabric by impurities, and lowering the risk of blockage in the disinfectant solution circulation system. Overall, this structure optimizes the flow management of the disinfectant solution and the filtration of impurities, improving the operational reliability of the device and the utilization efficiency of the disinfectant solution.

[0061] During the continuous operation of the spunlace nonwoven fabric roller-type continuous sterilization device, the physical state of the spunlace nonwoven fabric may change after multiple treatment stages such as chemical impregnation, twisting, extrusion, and sterilization, for example, becoming wet and soft. Without an effective tensioning and storage mechanism, the treated nonwoven fabric is prone to problems such as loosening, wrinkling, piling up, or even tangling. This not only affects subsequent processing efficiency and product quality but may also lead to equipment instability or even shutdown. Therefore, ensuring the smooth transport, effective tensioning, and orderly storage of the nonwoven fabric during continuous processing is crucial for the efficient and stable operation of the entire device.

[0062] In this regard, refer to Figures 1-6 This application further proposes that the inner wall of the outer cover 11 is rotatably connected to a first receiving roller 14, a second receiving roller 15 and a tensioning roller 16, with the tensioning roller 16 located on the bottom side of the conveying roller 13.

[0063] Specifically, both the first take-up roller 14 and the second take-up roller 15 are components used for winding and collecting the treated spunlace nonwoven fabric. They are typically cylindrical and can rotate freely or be driven by a drive device (e.g., a motor) through a rotatable connection to the inner wall of the outer casing 11. In practical applications, the appropriate roller diameter and length can be selected according to the width of the nonwoven fabric and the winding requirements. To achieve continuous winding, these take-up rollers can be configured with independent drive systems and synchronized with the operating speed of the conveyor roller 13 to ensure that the nonwoven fabric maintains appropriate tension during winding, avoiding excessive tightness or looseness.

[0064] Through the above technical solution, a first receiving roller 14, a second receiving roller 15, and a tensioning roller 16 are arranged on the inner wall of the outer cover 11, with the tensioning roller 16 located on the bottom side of the conveyor roller 13. This device can effectively solve the problems of slack, wrinkles, and uneven collection that may occur in the continuous processing of spunlace nonwoven fabric. Specifically, the arrangement of the tensioning roller 16 on the bottom side of the conveyor roller 13 allows the nonwoven fabric to be immediately subjected to appropriate tension after being conveyed by the conveyor roller 13, thereby effectively eliminating the slack and wrinkles that may occur in the nonwoven fabric in a wet state and ensuring its flatness. Subsequently, the first receiving roller 14 and the second receiving roller 15 work together to orderly and smoothly wind and collect the tensioned nonwoven fabric. This design ensures that the nonwoven fabric maintains stable tension throughout the entire processing flow, avoiding the decline in processing quality or equipment failure caused by uneven tension. At the same time, the design of the double receiving rollers also improves the continuous operation capability and collection efficiency of the device, allowing the processed nonwoven fabric to be collected neatly for subsequent handling and use. Overall, this technical solution significantly improves the transport stability, processing quality, and storage efficiency of spunlace nonwoven fabrics during continuous sterilization with drug solution immersion.

[0065] In some embodiments described above in this application, a continuous sterilization device for spunlace nonwoven fabric roller pressing with chemical solution is proposed, which impregnates the spunlace nonwoven fabric with chemical solution through a chemical solution tank 2. However, in its implementation, if there is a lack of an effective chemical solution replenishment and discharge mechanism, it may lead to insufficient chemical solution volume or chemical solution contamination, thereby affecting the impregnation effect and sterilization efficiency, and may interrupt the continuous production process.

[0066] In this regard, refer to Figures 1-6 This application further proposes that the top of the outer cover 11 of the above-mentioned device is fixedly connected to the liquid inlet pipe 111, and the bottom of the liquid tank 2 is fixedly connected to the liquid outlet pipe 21.

[0067] Specifically, the inlet pipe 111 is used to replenish the internal components of the device, particularly the medicine tank 2. The inlet pipe 111 can be a piping system, with one end connected to an external medicine supply source. To precisely control the replenishment, a flow control valve can be installed on the inlet pipe 111 to regulate the replenishment rate and volume, thereby maintaining a stable liquid level in the medicine tank 2. Furthermore, a level sensor can be installed to enable automatic replenishment, further improving the automation level of the device.

[0068] The drain pipe 21 is used to drain waste liquid or replacement solution from the solution tank 2. The drain pipe 21 is a conduit with one end fixedly connected to the bottom of the solution tank 2, and the other end can be connected to a waste liquid collection container or treatment system. A valve on the drain pipe 21 allows for easy control of the solution discharge. The design of the drain pipe 21 connecting the bottom of the solution tank 2 facilitates the complete drainage of the solution, which is crucial for the cleaning, maintenance, and regular replacement of the solution, ensuring that the cleanliness and sterilization effect of the solution are always at their optimal levels.

[0069] Through the above technical solution, the inlet pipe 111 allows for convenient and timely replenishment of fresh solution to the solution tank 2, ensuring the continuity of the solution impregnation process and the stability of the solution concentration, thus preventing insufficient solution from affecting the impregnation effect of the spunlace nonwoven fabric. Simultaneously, the drain pipe 21 allows for the periodic or irregular removal of waste or expired solution from the solution tank 2, effectively preventing solution contamination and performance degradation, thereby ensuring the efficiency and quality of solution impregnation and subsequent sterilization. This solution circulation management mechanism enables the entire spunlace nonwoven fabric roller-type continuous sterilization device to achieve long-term, efficient, and stable operation, significantly improving the practicality and ease of maintenance of the device.

[0070] During the continuous sterilization process of spunlace nonwoven fabric impregnation with chemical solution, although chemical impregnation and the high-temperature sterilization lamp group 6 can achieve sterilization, if the nonwoven fabric is not effectively dried after impregnation or the chemical solution temperature is not maintained at the optimal level, it may affect the activity of the chemical solution, the impregnation effect, and the efficiency of subsequent treatment. This may result in excessive chemical residue on the surface of the nonwoven fabric or unstable sterilization effect, thereby affecting the overall processing efficiency of the device and product quality.

[0071] In this regard, refer to Figures 1-6 This application further proposes that a hot air pipe 22 is fixedly connected inside the medicine tank 2, and multiple air vents are opened on the hot air pipe 22.

[0072] Specifically, the hot air duct 22 is a pipe used to transport hot air. Its function is to introduce externally heated air into the medicine tank 2 to heat or assist in drying the medicine or the impregnated non-woven fabric. The hot air duct 22 is usually made of corrosion-resistant and high-temperature-resistant materials, and the air outlet is an opening on the hot air duct 22 for releasing hot air. Its function is to ensure that the hot air can be evenly distributed inside the medicine tank 2, thereby uniformly heating or drying the medicine or non-woven fabric. The air outlet can be designed in various shapes, such as circular holes, slits, or nozzles, and can be rationally distributed along the length of the hot air duct 22 to adapt to the size of the medicine tank 2, the width of the non-woven fabric, and the required heating or drying effect.

[0073] Through the above technical solution, a hot air pipe 22 is fixedly connected inside the medicine tank 2, and multiple air vents are opened on the hot air pipe 22 to uniformly introduce hot air into the medicine tank 2. This allows the medicine in the medicine tank 2 to maintain a suitable temperature, thereby improving the activity and wetting effect of the medicine and ensuring that the spunlace nonwoven fabric can fully absorb the medicine. At the same time, the introduction of hot air helps to pre-heat or assist in drying the wetting of the spunlace nonwoven fabric, reducing the medicine residue on the surface of the nonwoven fabric and providing better conditions for the subsequent pressing by the extrusion roller 5 and the sterilization by the high-temperature sterilization lamp group 6. This design not only improves the wetting efficiency and sterilization effect of the medicine, but also effectively solves the problem of excessive moisture in the nonwoven fabric after wetting through the auxiliary drying function, ensuring the continuous and efficient operation of the device and the stability of product quality.

[0074] In some embodiments described above in this application, a continuous sterilization device for spunlace nonwoven fabric roller pressing with liquid immersion is proposed. In its linkage cleaning mechanism, the slide plate 44 reciprocates within the guide groove 41 to clean the inclined return plate 4. However, during its implementation, if the slide plate 44 comes into contact with the extrusion roller 5 during movement, it may cause component wear, unstable equipment operation, or even affect the processing quality of the spunlace nonwoven fabric.

[0075] In this regard, refer to Figures 1-6This application further proposes that the slide plate 44 does not contact the extrusion roller 5 during the movement.

[0076] This technical feature aims to ensure that the slide plate 44 in the linkage cleaning mechanism maintains a certain gap with the squeeze roller 5 during its reciprocating cleaning task, thereby avoiding any physical contact. This non-contact state can be achieved in several ways. During the design and manufacturing stages of the device, the movement trajectory of the slide plate 44 and the installation position of the squeeze roller 5 can be precisely calculated to ensure that a preset minimum safe distance always exists between them. Furthermore, limiting mechanisms or buffer devices can be introduced into the mounting structure of the slide plate 44 or the squeeze roller 5 to physically limit the movement range of the slide plate 44 and prevent it from exceeding the safety boundary. In some embodiments, the movement of the slide plate 44 can also be precisely monitored and adjusted by a control system, for example, by using sensors to detect the distance between them in real time and issuing an alarm or taking corrective measures when the distance is too close, to ensure the continuity of the non-contact state.

[0077] The above technical solution ensures that the slide plate 44 in the linkage cleaning mechanism remains in non-contact with the extrusion roller 5 throughout the entire movement. This design effectively avoids potential mechanical interference and friction between the slide plate 44 and the extrusion roller 5. Eliminating potential contact significantly reduces component wear, extends the service life of both the slide plate 44 and the extrusion roller 5, thereby reducing equipment maintenance costs and downtime. Simultaneously, non-contact operation ensures the smoothness and continuity of the extrusion roller 5 during operation, avoiding speed fluctuations or uneven pressure caused by external interference. This is crucial for ensuring uniform impregnation of the spunlace nonwoven fabric and subsequent extrusion effects. Furthermore, preventing collisions between components also reduces operating noise and improves the overall operational reliability and stability of the equipment.

[0078] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A spunlace nonwoven fabric roller-pressed continuous sterilization device for drug impregnation, characterized in that, include: An outer support (1) is fixedly connected to an outer cover (11) on its outer side. An inner support (12) is fixedly connected to the inner wall of the outer cover (11). Conveying rollers (13) are provided at both ends of the outer support (1). The medicine tank (2) is fixedly connected to the bottom of the outer cover (11); The linkage kneading mechanism (3) is set inside the liquid tank (2) and is connected to the transmission roller (13) for kneading and mixing the spunlace nonwoven fabric during the continuous sterilization process of the spunlace nonwoven fabric being soaked in liquid. The inclined return plate (4) is detachably connected to the inner wall of the outer cover (11) on both sides, and its bottom is locked on the top of the liquid tank (2). The inclined return plate (4) is equipped with a reciprocating linkage cleaning mechanism. The linkage cleaning mechanism is intermittently connected to the linkage kneading mechanism (3) and reset is completed through the linkage kneading mechanism (3). The extrusion roller (5) is rotatably connected to the inner wall of the outer cover (11) and is set on top of the inclined return plate (4); The high-temperature disinfection lamp assembly (6) is fixedly connected to the inner bracket (12).

2. The spunlace nonwoven fabric roller-pressed continuous sterilization device for liquid impregnation according to claim 1, characterized in that, The linkage kneading mechanism (3) includes a horizontal rotating rod (31), a vertical rotating rod (32), a kneading ball (34), and a strong magnet (36). The horizontal rotating rod (31) is rotatably connected to the medicine tank (2) and one end of it extends to the outside of the outer cover (11). A sleeve fixedly connected to the inner wall of the medicine tank (2) is sleeved on the outside of the horizontal rotating rod (31). Multiple vertical rotating rods (32) are provided, and all of them are rotatably connected to the sleeve. A bevel gear set (33) is connected between the horizontal rotating rod (31) and the vertical rotating rod (32). The kneading ball (34) is fixedly connected to the vertical rotating rod (32). A pulley set (35) is provided between the conveyor roller (13) and the horizontal rotating rod (31). A strong magnet (36) is fixedly connected to the conveyor belt of the pulley set (35).

3. The spunlace nonwoven fabric roller-pressed continuous sterilization device for liquid impregnation according to claim 2, characterized in that, The kneading ball (34) has a hemispherical structure and multiple arc-shaped protrusions on its surface.

4. The spunlace nonwoven fabric roller-pressed continuous sterilization device for liquid impregnation according to claim 1, characterized in that, The linkage cleaning mechanism includes a guide groove (41), an iron block (42), a sliding plate (44), and a lifting scraper (46). The guide groove (41) is opened on both sides of the inner wall of the inclined return plate (4). The sliding plate (44) is slidably connected to the guide groove (41). The iron block (42) is set on the outside of the inclined return plate (4) and a connecting block (43) is fixedly connected between it and the sliding plate (44). A miniature cylinder (45) is fixedly connected inside the sliding plate (44). The output end of the miniature cylinder (45) is fixedly connected to the lifting scraper (46). The lifting scraper (46) is slidably connected to the inner wall of the sliding plate (44).

5. The spunlace nonwoven fabric roller-pressed continuous sterilization device for liquid immersion according to claim 4, characterized in that, The iron block (42) is intermittently attracted to the strong magnet (36) to complete the reset, and the slide plate (44) slides down under the action of gravity.

6. The spunlace nonwoven fabric roller-pressed continuous sterilization device for liquid impregnation according to claim 1, characterized in that, The inner support (12) is an inverted trapezoidal structure covered with a guide plate, and a filter screen (121) is fixedly connected to the bottom side of the inner support (12).

7. The spunlace nonwoven fabric roller-pressed continuous sterilization device for liquid impregnation according to claim 1, characterized in that, The inner wall of the outer cover (11) is rotatably connected to a first receiving roller (14), a second receiving roller (15) and a tensioning roller (16), the tensioning roller (16) being located on the bottom side of the conveying roller (13).

8. The spunlace nonwoven fabric roller-pressed continuous sterilization device for liquid impregnation according to claim 1, characterized in that, The top of the outer cover (11) is fixedly connected to the liquid inlet pipe (111), and the bottom of the liquid tank (2) is fixedly connected to the liquid outlet pipe (21).

9. The spunlace nonwoven fabric roller-pressed continuous sterilization device for liquid impregnation according to claim 1, characterized in that, A hot air pipe (22) is fixedly connected inside the liquid medicine tank (2), and multiple air vents are provided on the hot air pipe (22).

10. The spunlace nonwoven fabric roller-pressed continuous sterilization device for liquid impregnation according to claim 4, characterized in that, The slide plate (44) does not contact the extrusion roller (5) during the movement.

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