Medical nonwoven fabric production sterilization apparatus
By using flexible oscillating guide vanes and multiple perforated rollers in the nonwoven fabric disinfection equipment, the gas injection direction and temperature control are optimized, solving the problems of large space occupation and low efficiency of existing equipment, and achieving efficient nonwoven fabric disinfection and temperature uniformity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YANGZHOU AOTELONG NONWOVENS CO LTD
- Filing Date
- 2025-12-12
- Publication Date
- 2026-07-21
AI Technical Summary
Existing nonwoven fabric disinfection equipment requires a long high-temperature channel to achieve full penetration and contact of saturated steam with the nonwoven fabric, resulting in large equipment space occupation and low disinfection efficiency.
By employing flexible swing guide vanes and multiple perforated rollers distributed vertically, the gas can achieve multiple and efficient penetration contacts with the nonwoven fabric within a limited space by controlling the angle of the guide vanes and the direction of air jet. Temperature control is optimized through the structure of the guide plate and cooling rollers to reduce heat loss.
It reduces the length of traditional long-distance high-temperature channels, improves the utilization rate of disinfection gas, reduces equipment space occupation, and improves the uniformity of temperature field and disinfection effect, while preventing fabric shrinkage and wrinkling.
Smart Images
Figure CN121360252B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of disinfection equipment technology, specifically a medical non-woven fabric production disinfection equipment. Background Technology
[0002] Medical nonwoven fabric production and sterilization equipment is an integrated device that integrates sterilization processes into a continuous production process. It mainly consists of front-end production units such as nonwoven fabric web forming and reinforcement, and subsequent online sterilization modules (such as irradiation, ethylene oxide fumigation or high-temperature hot air units) as well as cooling and winding sections.
[0003] When using this equipment, the operator first sets the parameters for each production and disinfection unit and checks the system's residual heat. After the equipment starts, the fiber raw material is combed, laid into a web, and reinforced to form a continuous nonwoven fabric substrate, which is then automatically conveyed into the disinfection chamber. While passing through the disinfection chamber, it comes into full contact with the high-temperature saturated steam inside, denaturing the proteins of microorganisms (saturated steam needs to penetrate the nonwoven fabric to achieve a thorough sterilization effect), thus completing the sterilization process.
[0004] Existing nonwoven fabric disinfection equipment generally disinfects nonwoven fabric by passing it through a high-temperature channel containing saturated steam. However, existing equipment requires a relatively long high-temperature channel to ensure that the saturated steam fully penetrates and contacts the nonwoven fabric.
[0005] Therefore, the present invention provides a sterilization device for the production of medical nonwoven fabrics. Summary of the Invention
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A medical non-woven fabric production and disinfection equipment according to this invention includes a cabinet; an inlet is provided on one side of the cabinet, and an outlet is provided on the other side; multiple support shafts are detachably connected inside the cabinet by bolts; the ends of the support shafts extend to the outer wall of the cabinet; a perforated roller is rotatably connected to the middle of the support shaft; a bearing is installed between the perforated roller and the support shaft; an air supply connector for supplying air to the perforated roller is connected to the cabinet; a bracket is fixedly connected to the end of the support shaft outside the cabinet; two mini hydraulic cylinders are fixedly connected to the bracket; a pull rope is connected to the output end of the mini hydraulic cylinder; the pull rope can be made of stainless steel wire; two guide vanes are rotatably connected to the middle of the support shaft; the output end of the pull rope extends into the perforated roller and connects to the side wall of the guide vanes; an exhaust chamber is connected to the side wall of the cabinet; the exhaust chamber needs to be connected to an industrial exhaust fan or centrifugal fan at its end; and the exhaust fan output end is connected to a small cooling tower. The sidewall of the guide vane contacts the inner sidewall of the perforated roller; two pull ropes are located between the two guide vanes; the output end of the gas filling connector is located between the two guide vanes; temperature sensors are installed around the support shaft inside the cabinet and at the inlet and outlet to detect real-time temperature changes at different locations inside the cabinet. The gas filling connector supplies steam into the perforated roller; then, guided by two guide vanes, the gas is discharged from the perforated roller.
[0008] The angle of the guide vane on the support shaft can be controlled by the mini hydraulic cylinder after each pull rope. By controlling the unfolding angle of the guide vane, air can be sprayed through the holes on the perforated roller that only contact the non-woven fabric, allowing the gas to fully penetrate the non-woven fabric and achieve high-temperature sterilization. When non-woven fabric continuously enters the cabinet for sterilization, the perforated roller on the support shaft will rotate synchronously to transport the non-woven fabric. When the internal temperature of the cabinet is too high, the industrial exhaust fan can be turned on to extract the gas inside the cabinet from the exhaust chamber, thereby controlling the internal temperature of the cabinet and controlling the steam concentration and humidity inside the cabinet. By using flexibly adjustable guide vanes, the air jet direction of the perforated rollers can be changed, causing the gas to be pressurized in a specific direction inside the perforated rollers. This forces the gas to diffuse outward more efficiently and fully through the holes on the surface of the perforated rollers, acting evenly on the nonwoven fabric material wrapped around or passing through the perforated rollers. At the same time, through multiple perforated rollers arranged vertically, in conjunction with guide vanes that can flexibly control the jet direction, multiple and efficient penetration contacts of the gas with the nonwoven fabric are achieved within the limited cabinet space. This reduces the length of the traditional long-distance high-temperature channel required to achieve full penetration and contact, improves the utilization rate of disinfection gas, and reduces the overall space occupation of the equipment.
[0009] Furthermore, a guide ring is fixedly connected to the middle of the support shaft; the guide ring is located between two guide vanes; the guide ring has two rings for the pull rope to pass through; the pull rope passes through the guide ring; the guide ring is located on the support shaft near the connection between the pull rope and the guide vane; the two rings of the guide ring have a ceramic coating to achieve wear resistance and high temperature resistance; By limiting the path of the pull rope through the guide ring, unexpected swaying and friction of the pull rope during transmission are reduced, thereby improving the accuracy of the pull rope in controlling the rotation of the guide vane and the reliability of the transmission.
[0010] Furthermore, a ceramic ring is fixed to the side wall of the support shaft; the ceramic ring connects the inner and outer walls of the support shaft; the pull rope slides with the center of the support shaft; wherein the ceramic ring is a long cylindrical ring; at the same time, the longer ceramic ring can reduce gas leakage inside the perforated roller; The high hardness, low friction, and corrosion resistance of the ceramic rings reduce wear on the pull rope during long-term reciprocating motion, thereby extending the rope's service life and ensuring smooth operation.
[0011] Furthermore, an electric heating roller is rotatably connected inside the cabinet; a cooling roller is installed inside the cabinet via a support device; the cooling roller is located at the bottom of the electric heating roller. After saturated steam sterilization and drying with electric heating rollers, the product enters the cooling step. This reduces the possibility of residual steam on the surface and inside the nonwoven fabric condensing into water droplets when it is directly exposed to room temperature air with a large temperature difference after being dried at high temperature. At the same time, cooling helps to smooth the fabric after winding and reduces the problem of fabric shrinkage and wrinkles caused by high temperature winding and cooling during storage.
[0012] Furthermore, a guide plate is fixedly connected to the inner side wall of the cabinet; one end of the guide plate is fixedly connected to the bottom of the discharge port, and the other end of the guide plate extends around the bottom of the cooling roller to the bottom of the heating roller. The guide plate promotes more orderly circulation or discharge of hot air, thereby improving the uniformity of the temperature field inside the cabinet and reducing heat loss in non-target areas. At the same time, as the gas passes through the electric heating roller, it is heated before entering the area around the support shaft, reducing the direct entry of cold air into the area around the support shaft inside the cabinet, which would cause the temperature of the non-woven fabric around the support shaft to be lower than the set expected temperature, resulting in a reduction in the disinfection effect. The guide plate in this process also guides the cold air entering at the outlet.
[0013] Furthermore, a set of support plates is fixedly connected to the side wall of the cabinet; the support plates are positioned above and below the inlet; a top rod is slidably connected to the support plate; a spring is fitted on the top rod; one end of the spring is connected to the end of the top rod, and the other end is connected to the support plate; a first baffle is fixedly connected to the end of the top rod near the inlet; a guide roller is rotatably connected to the end of the first baffle near the inlet; wherein the end of the first baffle is provided with an arc-shaped plate concentric with the guide roller. By fixing support plates to the upper and lower positions of the feed inlet on the side wall of the cabinet, a top rod supported by a spring is slidably connected to the support plate. A first baffle is fixed to the end of the top rod, and a guide roller is rotatably connected to the first baffle. When the non-woven fabric roll enters from the feed inlet, its upper and lower surfaces are squeezed by the two guide rollers. At the same time, the first baffle and the guide roller cooperate to block the feed inlet, reducing the amount of room temperature air entering the cabinet from the feed inlet, thus maintaining a stable temperature inside the cabinet. In addition, the end of the first baffle has an arc-shaped plate, which can further compress the airflow in the gap between the guide roller and the first baffle, further reducing the volume of air entering from the feed inlet.
[0014] Furthermore, an air supply groove is fixedly connected to the side wall of the cabinet; the air supply groove is located outside the discharge port and is connected to the discharge port; this reduces the entry of cold air with large temperature differences into the cabinet, thus reducing the impact on the high-temperature disinfection effect; and at the same time, it helps to further cool the non-woven fabric.
[0015] Furthermore, the supporting device includes a second baffle; a sliding groove is provided on the side wall of the cabinet; the rotating shaft of the cooling roller slides in the sliding groove; the end of the rotating shaft of the cooling roller is fixedly connected to the second baffle; a spring rod is fixedly connected to the side wall of the second baffle; the other end of the spring rod is rotatably connected to the side wall of the cabinet; the second baffle covers the sliding groove.
[0016] The elastic support provided by the spring rod allows the cooling roller to adapt to changes in the tension of the nonwoven fabric, thereby reducing excessive stretching or wrinkling of the nonwoven fabric.
[0017] Furthermore, a plug plate is fixedly connected to the top of the cabinet; the bottom of the plug plate extends into the interior of the cabinet; a filling block is fixedly connected to the inner side wall of the top of the cabinet; the filling block is located at the top of the heating roller; the filling block is located between the side wall of the plug plate and the inner side wall of the cabinet.
[0018] The combination of insert plates and filler blocks restricts the airflow path, guiding it to participate in air circulation more effectively. It also utilizes the residual heat from the cooling of the non-woven fabric for heating, and then flows to the area around the support shaft. At this time, the higher temperature gas enters the cabinet and mixes with the continuously entering high temperature gas inside the cabinet, reducing the impact of gases with large temperature differences entering the cabinet on the temperature. Subsequently, excess gas inside the cabinet can be extracted from the exhaust chamber, achieving precise temperature control around the support shaft.
[0019] Furthermore, a guide channel is fixed to the side wall of the bottom of the insert plate facing the feed inlet; the guide channel is an arc-shaped arrangement with a high middle and low sides; and a gap is left between the two ends of the guide channel and the inner side wall of the cabinet. By guiding and collecting the flow through the guide channel, the risk of irregular dripping of condensate droplets contaminating the non-woven fabric below is reduced, thereby improving the cleanliness and reliability of the equipment.
[0020] The beneficial effects of this invention are as follows: 1. The medical nonwoven fabric production and sterilization equipment of the present invention uses a flexible, swingable guide vane to change the air jet direction of the perforated roller, causing the gas to be pressurized in a specific direction inside the perforated roller. This forces the gas to diffuse outward more efficiently and fully through the holes on the surface of the perforated roller, uniformly acting on the nonwoven fabric material wrapped around or passing through the perforated roller. At the same time, through multiple perforated rollers arranged vertically, in conjunction with the guide vane that can flexibly control the jet direction, multiple and efficient penetration contacts of the gas with the nonwoven fabric are achieved within the limited cabinet space. This reduces the length of the traditional long-distance high-temperature channel required to achieve full penetration and contact, improves the utilization rate of sterilization gas, and reduces the overall space occupation of the equipment.
[0021] 2. The medical nonwoven fabric production and sterilization equipment of the present invention, through the guiding effect of the baffle plate, promotes the more orderly circulation or discharge of hot air, thereby improving the uniformity of the temperature field inside the cabinet and reducing heat loss in non-target areas; at the same time, during the process of the gas passing through the electric heating roller, it is heated before entering the area around the support shaft, reducing the problem of cold air directly entering the area around the support shaft inside the cabinet, causing the temperature of the nonwoven fabric around the support shaft to be lower than the set expected temperature, thus reducing the sterilization effect; the baffle plate in this process also guides the cold air entering at the outlet. Attached Figure Description
[0022] The invention will now be further described with reference to the accompanying drawings.
[0023] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram showing the flow direction of non-woven fabric inside the disinfection equipment; Figure 3 This is a schematic diagram of the internal structure of the cabinet; Figure 4 This is a cross-sectional view of the perforated roller on the support shaft. Figure 5 This is a schematic diagram of a cross-section with guide vanes on the support shaft; Figure 6 This is an exploded structural diagram of the support shaft, guide vanes, and perforated rollers; Figure 7 This is a schematic diagram of the fit between the support shaft and the guide vane; Figure 8 This is a schematic diagram of a structure with a mini hydraulic cylinder at the end of the support shaft; Figure 9 It is a schematic diagram showing a hydraulic cylinder and a pull rope working in conjunction with a guide vane on a support shaft; Figure 10 This is a structural diagram showing a wind deflector on the side wall of the cabinet; Figure 11 This is a schematic diagram of the cross-sectional structure of the wind deflector on the cabinet. Figure 12 This is a structural diagram showing that the insert plate has a flow guide groove at the bottom; Figure 13 This is a schematic diagram of the cooling roller structure inside the cabinet; Figure 14 This is a schematic diagram showing the airflow direction inside the cabinet. In the diagram: 1. Cabinet; 11. Inlet; 12. Outlet; 13. Support shaft; 14. Perforated roller; 15. Air inlet connector; 16. Bracket; 17. Mini hydraulic cylinder; 18. Pull rope; 19. Guide vane; 110. Exhaust chamber; 2. Guide ring; 3. Ceramic ring; 4. Heating roller; 41. Cooling roller; 5. Guide plate; 6. Support plate; 61. Top rod; 62. Spring; 63. First baffle; 64. Guide roller; 7. Air delivery groove; 8. Slide groove; 81. Second baffle; 82. Spring rod; 9. Insert plate; 91. Filler block; 10. Guide groove. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0025] like Figures 1 to 9 As shown in the embodiment of the present invention, a medical nonwoven fabric production and disinfection device includes a cabinet 1; an inlet 11 is provided on one side of the cabinet 1, and an outlet 12 is provided on the other side of the cabinet 1; multiple support shafts 13 are detachably connected inside the cabinet 1 by bolts; the ends of the support shafts 13 extend to the outer wall of the cabinet 1; a perforated roller 14 is rotatably connected to the middle of the support shaft 13; a bearing is installed between the perforated roller 14 and the support shaft 13; an air supply connector 15 for supplying air to the perforated roller 14 is connected to the cabinet 1; A bracket 16 is fixedly connected to the end of the support shaft 13 located outside the cabinet 1; two mini hydraulic cylinders 17 are fixedly connected to the bracket 16; the output end of the mini hydraulic cylinders 17 is connected to a pull rope 18; two guide vanes 19 are rotatably connected to the middle of the support shaft 13; the output end of the pull rope 18 extends into the interior of the perforated roller 14 and connects to the side wall of the guide vane 19; an exhaust chamber 110 is connected to the side wall of the cabinet 1; the exhaust chamber 110 needs to be connected to an industrial exhaust fan or centrifugal fan at its end; and the output end of the exhaust fan is connected to a small cooling tower. The pull rope 18 can be made of 316 stainless steel cable or graphite wire. Both 316 stainless steel cable and graphite wire can be used in temperature environments above 400℃, while the operating temperature of high-temperature saturated steam is generally maintained in the operating range of 150℃-260℃. The guide vane 19 has a gap between its sidewall and the inner sidewall of the perforated roller 14. At the same time, the guide vane 19 is provided with a low-friction coefficient sealing strip (which may be a graphite sealing strip) near the sidewall of the perforated roller 14 to reduce gas leakage from the gap between the guide vane 19 and the perforated roller 14 while allowing the perforated roller 14 to rotate relative to the outside of the guide vane 19.
[0026] The gas filling connector 15 is used to supply steam into the perforated roller 14; then, guided by the two guide vanes 19, it is discharged from the perforated roller 14. The steam is high-temperature saturated steam. When the high-temperature saturated steam passes through the nonwoven fabric, the steam comes into full contact with the nonwoven fabric, which denatures the microbial proteins on the surface and inside of the nonwoven fabric, thereby achieving the disinfection of the nonwoven fabric.
[0027] The side wall of the guide vane 19 contacts the inner side wall of the perforated roller 14; two pull ropes 18 are located between the two guide vanes 19; the output end of the gas connector 15 is located between the two guide vanes 19; temperature sensors are provided around the support shaft 13 inside the cabinet 1 and at the inlet 11 and outlet 12 to detect real-time temperature changes at different locations inside the cabinet 1. Before use, each support shaft 13 is individually adjusted according to the direction of entry and travel of the nonwoven fabric. The included angle of the two guide vanes 19 of the support shaft 13 is set to the direction of contact between the perforated roller 14 and the nonwoven fabric. At the same time, the gas filling connector 15 is connected to the saturated steam generator. Then, the nonwoven fabric is loaded onto the cabinet 1. The entry path of the nonwoven fabric is as follows: it first enters through the inlet 11, then passes around the bottom of the first support shaft 13, the top of the second support shaft 13, and the bottom of the third support shaft 13 in sequence, and then exits through the outlet 12. The direction of the included angle between the two guide vanes 19 inside each support shaft 13 is set according to the nonwoven fabric's travel path. Then, it can be passed through the gas filling connector. 15. Air is supplied into the support shaft 13. At this time, high-temperature and high-pressure saturated steam will be ejected from the mesh of the perforated roller 14. Simultaneously, the two guide vanes 19 are fully expanded due to the high pressure, pulling the pull rope 18. Then, the angle of the guide vane 19 on the support shaft 13 can be controlled by controlling the mini hydraulic cylinder 17 after each pull rope 18. By controlling the expansion angle of the guide vane 19, the air can be ejected through the holes on the perforated roller 14 that are in contact with the non-woven fabric, so that the gas can fully penetrate the non-woven fabric and achieve high-temperature disinfection of the non-woven fabric. When non-woven fabric is continuously entering the cabinet 1 for disinfection, the perforated roller 14 on the support shaft 13 will rotate synchronously to transport the non-woven fabric. When the temperature inside cabinet 1 is too high, the industrial exhaust fan can be turned on to extract the gas inside cabinet 1 from the exhaust chamber 110, thereby controlling the temperature inside cabinet 1 and controlling the steam concentration and humidity inside cabinet 1. Before the nonwoven fabric enters the cabinet 1, the staff can observe the approximate contact angle between the nonwoven fabric and the perforated roller 14 by observing the tangential angle based on the installation positions of the multiple support shafts 13. Then, by individually controlling the pull rope 18 at the output end of each mini hydraulic cylinder 17, the staff can achieve the individual deflection angle of the guide vane 19, thereby enabling the perforated roller 14 to spray out a fan-shaped area facing the contact angle with the nonwoven fabric, thus achieving directional utilization of saturated steam. By using the flexible oscillating guide vane 19, the jet direction of the perforated roller 14 can be changed, which can optimize and concentrate the jet direction and area of the gas from the perforated roller 14. Compared with the uniform jet without the guide vane 19, it can improve the contact strength and penetration of the gas and the nonwoven fabric in the local area. At the same time, by using multiple perforated rollers 14 arranged vertically, in conjunction with the guide vane 19 that can flexibly control the jet direction, multiple and efficient penetration contacts of the gas with the nonwoven fabric are achieved within the limited cabinet space.
[0028] like Figure 4 and Figure 5 As shown, a guide ring 2 is fixedly connected to the middle of the support shaft 13; the guide ring 2 is located between two guide vanes 19; the guide ring 2 has two rings for the pull rope 18 to pass through; the pull rope 18 passes through the guide ring 2; the guide ring 2 is located on the support shaft 13 near the connection between the pull rope 18 and the guide vane 19; the two rings of the guide ring 2 are provided with a ceramic coating to achieve wear resistance and high temperature resistance; By setting a guide ring 2 fixed in the middle of the support shaft 13, and the guide ring 2 being located between the two guide vanes 19 and having a ring hole for the pull rope 18 to pass through, the pull rope 18 extending from the mini hydraulic cylinder 17 passes through the corresponding ring hole on the guide ring 2 before entering the perforated roller 14 and connecting to the guide vane 19. Through the limiting effect of the guide ring 2 on the path of the pull rope 18, the unexpected swing and friction of the pull rope 18 during the transmission process are reduced, thereby improving the accuracy of the pull rope 18 in controlling the rotation of the guide vane 19 and the reliability of the transmission.
[0029] like Figure 7 As shown, a ceramic ring 3 is fixed to the side wall of the support shaft 13; the ceramic ring 3 connects the inner and outer side walls of the support shaft 13; the pull rope 18 is slidably engaged with the center of the support shaft 13; wherein the ceramic ring 3 is a long cylindrical ring; at the same time, the longer ceramic ring 3 can reduce gas leakage inside the perforated roller 14. By fixing a ceramic ring 3 to the side wall of the support shaft 13, the ceramic ring 3 connects the inner and outer walls of the support shaft 13 and serves as a passage for the pull rope 18, so that the pull rope 18 contacts the inner wall of the ceramic ring 3 when passing through the wall of the support shaft 13. The high hardness, low friction and corrosion resistance of the ceramic ring 3 reduce the wear of the pull rope 18 in long-term reciprocating motion, thereby extending the service life of the pull rope 18 and ensuring the smoothness of the operation.
[0030] like Figure 2 As shown, an electric heating roller 4 is rotatably connected inside the cabinet 1; a cooling roller 41 is installed inside the cabinet 1 via a support device; the cooling roller 41 is located at the bottom of the electric heating roller 4. By setting up an electric heating roller 4 rotatably connected inside the cabinet 1, and installing a cooling roller 41 at the bottom of the electric heating roller 4 through a support device, the non-woven fabric material can pass around the electric heating roller 4 for heating, drying or shaping after being treated with sterilizing gas, and then pass through the cooling roller 41 for cooling. After being sterilized by saturated steam and dried by the electric heating roller 4, it enters the cooling step. This can reduce the situation where the residual steam on the surface and inside of the non-woven fabric will condense into water droplets when it is directly placed into room temperature air with a large temperature difference after being dried at high temperature. At the same time, cooling helps to make the fabric flat after winding and reduces the problem of fabric shrinkage and wrinkles caused by high temperature winding and cooling during storage.
[0031] like Figure 14 As shown, a guide plate 5 is fixedly connected to the inner side wall of the cabinet 1; one end of the guide plate 5 is fixedly connected to the bottom of the discharge port 12, and the other end of the guide plate 5 extends around the bottom of the cooling roller 41 to the bottom of the heating roller 4. By setting a guide plate 5 fixed to the inner side wall of the cabinet 1, and the path of the guide plate 5 extends from the bottom of the discharge port 12 through the bottom of the cooling roller 41 to the bottom of the electric heating roller 4, the guide plate 5 can guide and constrain the flow direction of hot air or residual gas. The guide plate 5 guides the hot air to circulate or be discharged more orderly, thereby improving the uniformity of the temperature field inside the cabinet 1 and reducing the loss of heat in non-target areas. Meanwhile, when the exhaust device on the exhaust chamber 110 is not working, the gas inside the cabinet 1 is discharged from the outlet 12. The guide plate 5 guides the airflow. When the exhaust device at the end of the exhaust chamber 110 is working, the guide plate 5 also guides the airflow entering from the outlet 12. The airflow first enters from the outlet 12, passes through the cooling roller 41, the electric heating roller 4 and multiple support shafts 13, and is then extracted from the exhaust chamber 110. At the same time, the gas is heated as it passes through the electric heating roller 4 before entering the area around the support shaft 13, reducing the direct entry of cold air into the area around the support shaft 13 inside the cabinet 1, which would cause the temperature of the non-woven fabric around the support shaft 13 to be lower than the set expected temperature, resulting in a reduction in the disinfection effect. The guide plate 5 also guides the cold air entering from the outlet 12 during this process.
[0032] like Figure 11As shown, a set of support plates 6 are fixedly connected to the side wall of the cabinet 1; the support plates 6 are positioned above and below the feed inlet 11; a top rod 61 is slidably connected to the support plate 6; a spring 62 is sleeved on the top rod 61; one end of the spring 62 is connected to the end of the top rod 61, and the other end is connected to the support plate 6; a first baffle 63 is fixedly connected to the end of the top rod 61 near the feed inlet 11; a guide roller 64 is rotatably connected to the end of the first baffle 63 near the feed inlet 11. The first baffle 63 has an arc-shaped plate at its end that is concentric with the guide roller 64; By setting support plates 6 fixed to the side wall of the cabinet 1 at the upper and lower positions of the inlet 11, a top rod 61 elastically supported by a spring 62 is slidably connected to the support plate 6. A first baffle 63 is fixed to the end of the top rod 61, and a guide roller 64 is rotatably connected to the first baffle 63. When the non-woven fabric roll enters from the inlet 11, its upper and lower surfaces will be squeezed by the two guide rollers 64. At the same time, the first baffle 63 and the guide roller 64 cooperate to block the inlet 11, reducing the entry of room temperature air into the cabinet 1 from the inlet 11, and maintaining the temperature stability inside the cabinet 1. At the same time, the end of the first baffle 63 has an arc plate, which can further compress the air flow in the gap between the guide roller 64 and the first baffle 63, further reducing the volume of air entering from the inlet 11.
[0033] like Figure 14 As shown, an air supply groove 7 is fixedly connected to the side wall of the cabinet 1; the air supply groove 7 is located outside the discharge port 12 and is connected to the discharge port 12. An air delivery groove 7 is provided at the discharge port 12, which allows the gas to pass through the air delivery groove 7 first and come into contact with the non-woven fabric when the gas is being drawn from the exhaust chamber 110. At this time, the non-woven fabric continues to cool down, while the gas entering from the air delivery groove 7 continues to heat up, so as to get closer to the temperature inside the cabinet 1. This reduces the problem of cold air with large temperature differences entering the cabinet 1 and affecting the high-temperature disinfection effect. At the same time, it helps to further cool the non-woven fabric.
[0034] like Figure 13 As shown, the supporting device includes a second baffle 81; a sliding groove 8 is provided on the side wall of the cabinet 1; the rotating shaft of the cooling roller 41 slides in the sliding groove 8; the end of the rotating shaft of the cooling roller 41 is fixedly connected to the second baffle 81; a spring rod 82 is fixedly connected to the side wall of the second baffle 81; the other end of the spring rod 82 is rotatably connected to the side wall of the cabinet 1; the second baffle 81 covers the sliding groove 8.
[0035] The cooling roller 41 is supported by a second baffle 81 fixed to the rotating shaft. The second baffle 81 slides in a groove 8 on the side wall of the cabinet 1 and is elastically connected to the side wall of the cabinet 1 via a spring rod 82, allowing the cooling roller 41 to slide elastically within the groove 8. The elastic support provided by the spring rod 82 enables the cooling roller 41 to adapt to changes in the tension of the nonwoven fabric, thereby reducing excessive stretching or wrinkling of the nonwoven fabric.
[0036] like Figure 12 As shown, a plug plate 9 is fixedly connected to the top of the cabinet 1; the bottom of the plug plate 9 extends into the interior of the cabinet 1; a filling block 91 is fixedly connected to the inner side wall of the top of the cabinet 1; the filling block 91 is located on the top of the electric heating roller 4; the filling block 91 is located between the side wall of the plug plate 9 and the inner side wall of the cabinet 1.
[0037] By setting a downward-extending insert plate 9 fixed to the top of the cabinet 1, and a filling block 91 fixed to the inner wall of the cabinet 1 at the top of the electric heating roller 4, and the filling block 91 being located between the side wall of the insert plate 9 and the inner wall of the cabinet 1, the insert plate 9 and the filling block 91 together form a space for guiding airflow in the area above the electric heating roller 4; this allows the gas entering from the outlet 12 to come into more full contact with the electric heating roller 4 and heat up; through the combined structure of the insert plate 9 and the filling block 91, the airflow path can be restricted, guiding it to participate in air circulation more effectively, and utilizing the residual heat from the cooling of the non-woven fabric for heating, and then flowing to the area around the support shaft 13, at which point the higher temperature gas enters the interior of the cabinet 1, which can achieve mixing with the continuously entering high temperature gas in the cabinet 1, reducing the impact of gas with large temperature differences entering the interior of the cabinet 1 on the temperature, and then the excess gas inside the cabinet 1 can be extracted from the exhaust chamber 110, achieving precise control of the temperature around the support shaft 13.
[0038] like Figure 12 As shown, a guide groove 10 is fixedly connected to the side wall of the bottom of the insert plate 9 facing the feed port 11; the guide groove 10 is an arc-shaped arrangement with a high middle and low sides; and there is a gap between the two ends of the guide groove 10 and the inner side wall of the cabinet 1. A guide channel 10 is fixed to the side wall of the bottom of the insert plate 9 facing the inlet 11. The guide channel 10 has an arc-shaped structure that is high in the middle and low on both sides. There are gaps between its two ends and the inner side wall of the cabinet 1. This allows the droplets that may condense on the insert plate 9 (because the air enters from the outlet 12 and first comes into contact with the side of the insert plate 9 near the outlet 12, which will cause a temperature difference between the two sides of the insert plate 9, and then the high temperature gas on the side of the insert plate 9 near the inlet 11 will liquefy on the surface) to collect on both sides along the arc-shaped surface of the guide channel 10 and flow downward through the gaps at both ends. Through the guiding and collecting function of the guide channel 10, the risk of irregular dripping of condensate droplets causing pollution to the non-woven fabric below is reduced, thereby improving the cleanliness and reliability of the equipment.
[0039] Among them, such as Figure 2 As shown in the figure, the direction pointed by the arrow is the movement path of nonwoven fabric a.
[0040] Among them, such as Figure 14 As shown in the figure, the direction pointed to by the arrow is the direction of the airflow entering at point 12 when the air extraction begins at point 110.
[0041] During operation, each support shaft 13 is individually adjusted according to the direction of entry and travel of the nonwoven fabric. The included angle of the two guide vanes 19 of the support shaft 13 is set to the direction of contact between the perforated roller 14 and the nonwoven fabric. At the same time, the gas filling connector 15 is connected to the saturated steam generator. Then, the nonwoven fabric is loaded onto the cabinet 1. The entry path of the nonwoven fabric is as follows: it first enters through the inlet 11, then passes around the bottom of the first support shaft 13, the top of the second support shaft 13, and the bottom of the third support shaft 13 in sequence, and then exits through the outlet 12. The direction of the included angle between the two guide vanes 19 inside each support shaft 13 is set based on the nonwoven fabric's travel path. Then, it can pass through the gas filling connector. 15. Air is supplied into the support shaft 13. At this time, high-temperature and high-pressure saturated steam will be ejected from the mesh on the perforated roller 14. Simultaneously, the two guide vanes 19 are fully expanded due to the high pressure, pulling the pull rope 18. Then, the angle of the guide vane 19 on the support shaft 13 can be controlled by controlling the mini hydraulic cylinder 17 after each pull rope 18. By controlling the expansion angle of the guide vane 19, the air can be ejected through the holes on the perforated roller 14 that are in contact with the non-woven fabric, so that the gas can fully penetrate the non-woven fabric and achieve high-temperature disinfection of the non-woven fabric. When non-woven fabric is continuously entering the cabinet 1 for disinfection, the perforated roller 14 on the support shaft 13 will rotate synchronously to transport the non-woven fabric. By fixing a guide ring 2 to the middle of the support shaft 13, and positioning the guide ring 2 between the two guide vanes 19 with an annular hole for the pull rope 18 to pass through, the pull rope 18 extending from the mini hydraulic cylinder 17 passes through the corresponding annular hole on the guide ring 2 before entering the perforated roller 14 and connecting to the guide vanes 19. The guide ring 2's limiting effect on the pull rope 18's path reduces unintended swaying and friction during transmission. A ceramic ring 3 is fixed to the side wall of the support shaft 13, connecting the inner and outer walls of the support shaft 13 and serving as a passageway for the pull rope 18, allowing the pull rope 18 to contact the inner wall of the ceramic ring 3 when passing through the wall of the support shaft 13. An electric heating roller is rotatably connected inside the cabinet 1. 4. A cooling roller 41 is installed at the bottom of the electric heating roller 4 via a supporting device, so that the non-woven fabric material can be heated and dried or shaped by passing around the electric heating roller 4 after sterilization gas treatment, and then cooled by the cooling roller 41. After saturated steam sterilization and drying by the electric heating roller 4, it enters the cooling step, which can reduce the situation where the residual steam on the surface and inside of the non-woven fabric will liquefy into water droplets when it is directly put into room temperature air with a large temperature difference after the non-woven fabric is dried at high temperature. By setting a guide plate 5 fixed to the inner wall of the cabinet 1, and the path of the guide plate 5 extends from the bottom of the outlet 12 through the bottom of the cooling roller 41 to the bottom of the electric heating roller 4, the guide plate 5 can guide and constrain the flow direction of hot air or residual gas.Meanwhile, when the exhaust device on the exhaust chamber 110 is not working, the gas inside the cabinet 1 is discharged from the outlet 12. The guide plate 5 guides the airflow. When the exhaust device at the end of the exhaust chamber 110 is working, the guide plate 5 also guides the airflow entering from the outlet 12. The airflow first enters from the outlet 12, passes through the cooling roller 41, the heating roller 4, and multiple support shafts 13, and is then extracted from the exhaust chamber 110. At the same time, the gas is heated as it passes through the heating roller 4 before entering the area around the support shafts 13, reducing the direct entry of cold air into the area around the support shafts 13 inside the cabinet 1, thus reducing the impact on the support shafts. The temperature of the nonwoven fabric around 13 is lower than the set expected temperature. A support plate 6 is fixedly connected to the side wall of the cabinet 1 at the upper and lower positions of the inlet 11. A top rod 61 supported by a spring 62 is slidably connected to the support plate 6. A first baffle 63 is fixedly connected to the end of the top rod 61, and a guide roller 64 is rotatably connected to the first baffle 63. When the nonwoven fabric roll enters from the inlet 11, its upper and lower surfaces will be squeezed by the two guide rollers 64. At the same time, the first baffle 63 and the guide roller 64 cooperate to block the inlet 11, reducing the possibility of room temperature air entering the cabinet 1 from the inlet 11, and keeping the temperature inside the cabinet 1 stable. An air delivery groove 7 is provided at the discharge port 12, which allows the gas to pass through the air delivery groove 7 first and come into contact with the non-woven fabric when the gas is being drawn from the exhaust chamber 110. At this time, the non-woven fabric continues to cool down, while the gas entering from the air delivery groove 7 continues to heat up, so as to get closer to the temperature inside the cabinet 1. The cooling roller 41 is supported by a second baffle 81 fixed to the rotating shaft. The second baffle 81 slides in the slide groove 8 on the side wall of the cabinet 1 and is elastically connected to the side wall of the cabinet 1 by a spring rod 82, so that the cooling roller 41 can slide elastically within the slide groove 8. A downwardly extending insert 9 is fixed to the top of the cabinet 1 and is placed on top of the electric heating roller 4. A filling block 91 is fixed to the inner wall of the cabinet 1, and the filling block 91 is located between the side wall of the insert plate 9 and the inner wall of the cabinet 1, so that the insert plate 9 and the filling block 91 together form a space for guiding airflow in the area above the electric heating roller 4; so that the gas entering from the outlet 12 can more fully contact the electric heating roller 4 and heat up; by setting a guide groove 10 fixed to the side wall of the bottom of the insert plate 9 facing the inlet 11, and the guide groove 10 has an arc-shaped structure that is high in the middle and low on both sides, and its two ends are left with gaps to the inner wall of the cabinet 1, so that the droplets that may condense on the insert plate 9 can be collected to both sides along the arc-shaped surface of the guide groove 10 and flow downward through the gaps at both ends.
[0042] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A medical nonwoven fabric production and sterilization device, characterized in that: Includes a cabinet (1); the cabinet (1) has an inlet (11) on one side and an outlet (12) on the other side; the cabinet (1) is detachably connected to multiple support shafts (13) by bolts; the ends of the support shafts (13) extend to the outer wall of the cabinet (1); a perforated roller (14) is rotatably connected to the middle of the support shaft (13); an air supply connector (15) for supplying air to the perforated roller (14) is connected to the cabinet (1); the support shafts (13) are detachably connected to multiple support shafts (13) by bolts. A bracket (16) is fixed to the end of the support shaft (13) located outside the cabinet (1); two mini hydraulic cylinders (17) are fixed to the bracket (16); a pull rope (18) is connected to the output end of the mini hydraulic cylinder (17); two guide vanes (19) are rotatably connected to the middle of the support shaft (13); the output end of the pull rope (18) extends into the perforated roller (14) and connects to the side wall of the guide vane (19); an exhaust chamber (110) is connected to the side wall of the cabinet (1); The sidewall of the guide vane (19) contacts the inner sidewall of the perforated roller (14); two pull ropes (18) are located between the two guide vanes (19); the output end of the gas filling connector (15) is located between the two guide vanes (19); The gas supply connector (15) delivers steam into the perforated roller (14); then, guided by two guide vanes (19), the gas is discharged from the perforated roller (14).
2. The medical nonwoven fabric production and sterilization equipment according to claim 1, characterized in that: A guide ring (2) is fixedly connected to the middle of the support shaft (13); the guide ring (2) is located between two guide vanes (19); the guide ring (2) has two loops for the pull rope (18) to pass through; the pull rope (18) passes through the guide ring (2); the guide ring (2) is located on the support shaft (13) near the connection between the pull rope (18) and the guide vane (19).
3. The medical nonwoven fabric production and sterilization equipment according to claim 2, characterized in that: A ceramic ring (3) is fixed to the side wall of the support shaft (13); the ceramic ring (3) connects the inner and outer side walls of the support shaft (13); the pull rope (18) slides with the center of the support shaft (13).
4. The medical nonwoven fabric production and sterilization equipment according to claim 1, characterized in that: The cabinet (1) is rotatably connected to an electric heating roller (4); a cooling roller (41) is installed inside the cabinet (1) via a support device; the cooling roller (41) is located at the bottom of the electric heating roller (4).
5. The medical nonwoven fabric production and sterilization equipment according to claim 4, characterized in that: A guide plate (5) is fixed to the inner wall of the cabinet (1); one end of the guide plate (5) is fixed to the bottom of the discharge port (12), and the other end of the guide plate (5) extends around the bottom of the cooling roller (41) to the bottom of the heating roller (4).
6. The medical nonwoven fabric production and sterilization equipment according to claim 5, characterized in that: A set of support plates (6) are fixed to the side wall of the cabinet (1); the support plates (6) are set at the upper and lower positions of the feed inlet (11); a top rod (61) is slidably connected to the support plate (6); a spring (62) is sleeved on the top rod (61); one end of the spring (62) is connected to the end of the top rod (61), and the other end is connected to the support plate (6); a first baffle (63) is fixed to the end of the top rod (61) near the feed inlet (11); a guide roller (64) is rotatably connected to the end of the first baffle (63) near the feed inlet (11).
7. The medical nonwoven fabric production and sterilization equipment according to claim 6, characterized in that: The cabinet (1) has an air supply groove (7) fixedly connected to its side wall; the air supply groove (7) is located outside the discharge port (12) and is connected to the discharge port (12).
8. The medical nonwoven fabric production and sterilization equipment according to claim 4, characterized in that: The supporting equipment includes a second baffle (81); a sliding groove (8) is provided on the side wall of the cabinet (1); the rotating shaft of the cooling roller (41) slides in the sliding groove (8); the end of the rotating shaft of the cooling roller (41) is fixedly connected to the second baffle (81); a spring rod (82) is fixedly connected to the side wall of the second baffle (81); the other end of the spring rod (82) is rotatably connected to the side wall of the cabinet (1); the second baffle (81) covers the sliding groove (8).
9. The medical nonwoven fabric production and sterilization equipment according to claim 4, characterized in that: The top of the cabinet (1) is fixedly connected to a plug plate (9); the bottom of the plug plate (9) extends into the interior of the cabinet (1); a filling block (91) is fixedly connected to the inner side wall of the top of the cabinet (1); the filling block (91) is located on the top of the electric heating roller (4); the filling block (91) is located between the side wall of the plug plate (9) and the inner side wall of the cabinet (1).
10. A medical nonwoven fabric production and sterilization equipment according to claim 9, characterized in that: The bottom of the insert plate (9) is fixed to the side wall facing the feed inlet (11) with a guide groove (10); the guide groove (10) is an arc-shaped structure with a high middle and low sides; there is a gap between the two ends of the guide groove (10) and the inner side wall of the cabinet (1).