A drying device for the production of medical absorbent gauze

Abstract

The present application provides a drying device for the production of medical degreased gauze, belonging to the technical field of medical degreased gauze production, including a drying room and a linear guide rail, a bracket, a rotating shaft and a roller arranged in the drying room; the linear guide rail is hinged to the inner side wall of the drying room, and a sliding seat is slidably connected to the linear guide rail, the bracket is fixedly arranged on the sliding seat, the rotating shaft is rotatably connected to the middle of the bracket, the roller is rotatably connected to the outer arc surface of the bracket, the roller and the rotating shaft are connected by a planetary gear, the roller abuts against the surface of the medical degreased gauze, and an eccentric block is arranged on the rotating shaft for generating vibration during the conveying process of the medical degreased gauze; two guide rollers are rotatably connected between the left and right side walls of the drying room; the present application can solve the problem that during the drying process, the drying rates of the inner and outer layers of the yarns of the medical degreased gauze are quite different, affecting the quality of the medical degreased gauze.

Description

Technical Field

[0001] This application relates to the technical field of medical degreased gauze production, and specifically relates to a drying device for medical degreased gauze production. Background Art

[0002] Medical degreased gauze, as a key material applied in the clinical medical field, plays an important role in aspects such as wound coverage, hemostatic dressing, and postoperative care. Its performance needs to meet strict standards such as sterility, high water absorbency, softness, and low floc and dust shedding. Such gauze is usually made of pure cotton yarns and is tightly woven in warp and weft. The internal fiber structure is loose and porous, and this unique structure endows the gauze with good water absorbency and air permeability. Its production requires multiple fine processes such as degreasing, rinsing, and drying.

[0003] In the production process of medical degreased gauze, drying is the core process after rinsing and mechanical dehydration, directly affecting the fluffiness, water absorbency, and microbial residue amount of medical degreased gauze. After medical degreased gauze is degreased and rinsed, water not only adheres to the fiber surface but also penetrates into the interior due to the porous structure. Existing technologies may have quality problems during the drying process.

[0004] Referring to the Chinese patent document with the publication number CN222352791U, the publication date of January 14, 2025, and the name of a drying device for medical degreased gauze, it includes a drying room. A guiding component is arranged inside the drying room. The bottom plate in the guiding component is embedded on the lower surface of the drying room. Coarse guiding rollers and fine guiding rollers are rotatably connected at equal intervals on both sides of the upper surface of the bottom plate, enabling the medical degreased gauze to enter the interior of the drying room in a zigzag manner.

[0005] Referring to the above technical solution, by the cooperation of the coarse guiding rollers and the fine guiding rollers, the wrinkles of the medical degreased gauze are reduced, and the staying time of the medical degreased gauze inside the drying room is increased, improving the drying effect. However, when hot air passes through the porous structure of the medical degreased gauze, the moisture on the outer layer of the yarn will quickly evaporate in a short time, while the moisture in the inner layer is still in a wet and swollen state due to the slow diffusion rate, resulting in insufficient drying. At this time, if the drying time is prolonged, the drying efficiency will be reduced, and the excessive drying of the surface layer fibers of the yarn will cause the fibers to shrink excessively due to dehydration, resulting in a decrease in the bonding force between the surface layer fibers of the yarn and embrittlement. Summary of the Invention

[0006] In view of this, this application provides a drying device for medical degreased gauze production, mainly used to solve the problem that the drying rate difference between the inner and outer layers of the yarn of medical degreased gauze is relatively large during the drying process, affecting the quality of medical degreased gauze.

[0007] To solve the above technical problems, the present application provides a drying device for the production of medical degreased gauze, including a drying chamber and a linear guide rail, a bracket, a rotating shaft, and a roller disposed within the drying chamber;

[0008] The linear guide rail is hinged to the inner side wall of the drying chamber, and a sliding seat is slidably connected to the linear guide rail. The bracket is fixedly arranged on the sliding seat. The rotating shaft is rotatably connected to the middle of the bracket, and the roller is rotatably connected to the outer arc surface of the bracket. The roller and the rotating shaft are connected by a planetary gear. The roller abuts against the surface of the medical degreased gauze. An eccentric block is arranged on the rotating shaft for generating vibration during the conveying process of the medical degreased gauze. Two guide rollers are rotatably connected between the left and right side walls of the drying chamber for restricting the central angle size of the contact between the medical degreased gauze and the roller.

[0009] By adopting the above technical solution, the roller abuts against the surface of the medical degreased gauze. The inclined linear guide rail supports the roller and the components inside the roller in the direction perpendicular to the linear guide rail. The components inside the roller and the roller utilize the component force of their own gravity in the direction of the linear guide rail to provide an appropriate tension for the medical degreased gauze, enabling the medical degreased gauze to remain taut during the conveying process and being able to stretch the medical degreased gauze to a certain extent, so that the wrinkles on the surface of the medical degreased gauze are stretched. During the conveying process of the medical degreased gauze, the rotation of the roller is driven by the frictional force with the outer arc surface of the roller. The roller drives the rotating shaft to rotate through the planetary gear. The rotating shaft uses the vibration generated by the rotation of the eccentric block and transmits it to the roller through the bracket, thereby driving the medical degreased gauze to generate small-amplitude vibrations. The fibers inside the medical degreased gauze are continuously pulled due to the vibration, promoting the faster migration of the moisture inside the medical degreased gauze to the surface and quickly evaporating under the action of hot air, reducing the difference in the drying speed between the inner and outer sides of the yarn of the medical degreased gauze, greatly improving the drying efficiency, reducing the embrittlement of the outer cotton fibers. At the same time, the small-amplitude vibration makes the medical degreased gauze looser and softer, improving the hand feeling and enhancing the product comfort.

[0010] Optionally, through holes are uniformly arranged on the arc surface of the roller. The right end of the roller is of an open structure. The rotating shaft is rotatably connected to the inner wall of the circular hole provided on the left side plate of the roller. A fan blade is fixedly provided at the right end of the rotating shaft. The fan blade is located inside the right end of the roller for promoting the air flow on both sides of the contact part between the medical degreased gauze and the roller.

[0011] By adopting the above technical solution, during the rotation of the rotating shaft, the fan blade is driven to rotate, forming a negative pressure at the right end inside the roller. The hot air in the drying chamber enters the inside of the roller through the medical degreased gauze and the through holes under the action of the pressure difference, promoting the air flow on both sides of the contact part between the medical degreased gauze and the roller and accelerating the moisture evaporation speed, thereby improving the drying efficiency.

[0012] Optionally, an arc-shaped wind baffle is fixedly arranged on the bracket. The arc-shaped wind baffle is in sliding contact with the inner arc surface of the drum, and the arc-shaped wind baffle is located on the opposite side of the part where the drum abuts against the medical absorbent gauze.

[0013] By adopting the above technical solution, the arc-shaped wind baffle blocks the through holes on the opposite side of the part where the drum abuts against the medical absorbent gauze, enabling more air to pass through the medical absorbent gauze and carry away the moisture on the surface of the medical absorbent gauze.

[0014] Optionally, a condensing pipe is arranged on the inner arc surface of the arc-shaped wind baffle, and a converging groove corresponding to the condensing pipe vertically is arranged at the bottom of the arc-shaped wind baffle. One end of the converging groove is communicated with the outside of the drying room through a conduit for discharging the condensed water out of the drying room.

[0015] By adopting the above technical solution, when the humid and hot air entering the drum passes through the condensing pipe, the water vapor in the air meets the surface of the condensing pipe with a lower temperature, and part of the water vapor will condense into small water droplets, assisting in reducing the moisture content in the air.

[0016] Optionally, semiconductor refrigeration chips are uniformly and fixedly arranged on the inner wall surface of the condensing pipe, and the cold ends of the semiconductor refrigeration chips are in contact with the inner wall surface of the condensing pipe.

[0017] By adopting the above technical solution, the temperature of the condensing pipe wall is lower than the temperature of the air between the condensing pipe and the drum to maintain the condensing effect.

[0018] Optionally, the pipe wall of the condensing pipe is in a continuous wavy structure in the axial direction.

[0019] By adopting the above technical solution, strong disturbances are generated when the air passes through the condensing pipe, breaking the laminar boundary layer of the air and making the heat exchange between the air and the outer wall of the condensing pipe more sufficient, which can improve the heat exchange efficiency and enhance the condensing effect.

[0020] Optionally, convex strips are annularly and arrayedly arranged on the outer arc surface of the drum. The convex strips and the through holes are distributed at intervals in the circumferential direction of the drum, and the convex strips abut against the surface of the medical absorbent gauze.

[0021] By adopting the above technical solution, the friction force between the medical absorbent gauze and the drum surface is increased, ensuring the driving effect of the medical absorbent gauze on the drum. At the same time, there is a certain gap between the part where the medical absorbent gauze and the drum abut, facilitating the evaporation of moisture and improving the drying quality.

[0022] Optionally, the planetary gear includes a tooth ring, planet gears and a sun gear. The tooth ring is fixedly connected to the inner arc surface of the drum. The planet gears are rotatably connected to the fixed shafts arranged inside the bracket. The planet gears are located in the radial direction of the tooth ring. The sun gear is arranged on the rotating shaft, and the planet gears are respectively meshed and connected with the tooth ring and the sun gear.

[0023] By adopting the above technical solution, the roller drives the rotating shaft to rotate, and then drives the eccentric block to rotate to generate vibration.

[0024] Optionally, an electric push rod is hinged to the lower end of the side wall of the drying room, and the top end of the push rod of the electric push rod is hinged to the lower end of the linear guide rail for adjusting the inclination angle of the linear guide rail.

[0025] By adopting the above technical solution, the push rod of the electric push rod drives the linear guide rail to rotate, adjusts the inclination angle of the linear guide rail, and changes the magnitude of the component force of the self-weight of the roller and the components inside the roller along the direction of the linear guide rail, so as to flexibly adjust the tension of the medical degreased gauze.

[0026] Optionally, a drying box is fixedly arranged on the top plate of the drying room, a hot air blower is fixedly arranged on the inner side wall of the drying room, and the air outlet of the drying box is communicated with the air inlet of the hot air blower through a duct.

[0027] By adopting the above technical solution, the wet air after drying passes through the drying box and is dehumidified by the desiccant inside the drying box, and then enters the drying room again after being heated by the heating wire inside the hot air blower to dry the medical degreased gauze. The air is recycled, reducing the waste of heat energy, and at the same time avoiding the introduction of impurities when external air enters the drying room.

[0028] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The rotating shaft generates micro-vibrations through the rotation of the eccentric block. The vibrations are transmitted to the surface of the medical degreased gauze through the bracket, roller and convex strips in sequence, forcing the moisture inside the medical degreased gauze to accelerate its migration to the surface layer, narrowing the difference in drying speed between the inner and outer sides of the yarns of the medical degreased gauze, greatly improving the drying efficiency, reducing the embrittlement of the outer cotton fibers, and at the same time, avoiding the disordered arrangement and increased friction between the fibers caused by the uneven shrinkage of the inner and outer layers of the yarns. This makes the medical degreased gauze looser, softer, improves the hand feeling, and enhances the product comfort; the component force of the gravity of the roller and the internal components on the linear guide rail is converted into a continuous tension on the medical degreased gauze, keeping the medical degreased gauze in a taut state during the conveying process, stretching the wrinkles on the surface of the medical degreased gauze, thus ensuring the flatness of the medical degreased gauze during the conveying process. Moreover, it avoids the problem of tension change caused by the change of the roller stroke when using a tension support structure such as a spring.

[0030] 2. As the drum continues to rotate, the fan blades fixed to the right end of the rotating shaft rotate at high speed, forming a negative pressure area at the right end of the drum. Under the action of the pressure difference, the dry hot air provided by the hot air blower in the drying room first penetrates the medical absorbent gauze, and then enters the inside of the drum through the through holes evenly distributed on the outer arc surface of the drum. When the air penetrates the medical absorbent gauze, the evaporation of the moisture on the surface of the medical absorbent gauze is accelerated, further improving the drying efficiency of the medical absorbent gauze. When the humid hot air entering the drum passes through the corrugated condensing pipe inside the inner side of the arc-shaped wind baffle, strong turbulence is formed in the periodic contraction and expansion structure of the corrugated pipe wall, breaking the laminar boundary layer of the air, and enabling the water vapor to fully contact and condense with the low-temperature pipe wall. The condensed water slides down along the pipe wall to the confluence trough at the bottom of the arc-shaped wind baffle and is continuously discharged outside the drying room through the conduit, assisting in reducing the moisture in the drying air. The air flowing through the inside of the condensing pipe is heated by the hot end of the semiconductor refrigerating sheet and then re-joins the hot air circulation system to achieve heat energy recovery and reduce waste. Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of a drying device for producing medical absorbent gauze according to the present application;

[0032] Figure 2 is a right-side cross-sectional structural diagram of the drying room of the present application;

[0033] Figure 3 For the present application Figure 2 is an enlarged structural diagram of area A;

[0034] Figure 4 is a front cross-sectional structural diagram of the drying room of the present application;

[0035] Figure 5 For the present application Figure 4 is an enlarged structural diagram of area B;

[0036] Figure 6 is a structural diagram of the condensing pipe of the present application;

[0037] Figure 7 is a structural diagram of the arc-shaped wind baffle and the confluence trough of the present application.

[0038] Description of the Reference Numerals: 1. Drying room; 101. Drying box; 102. Hot air blower; 103. Air duct; 2. Auxiliary drying assembly; 21. Linear guide rail; 211. Slide block; 22. Bracket; 23. Rotating shaft; 24. Drum; 241. Through hole; 242. Rib; 3. Planetary gear; 31. Ring gear; 32. Planet gear; 33. Sun gear; 4. Eccentric block; 5. Guide roller; 6. Fan blade; 7. Arc-shaped wind baffle; 71. Confluence trough; 8. Condensing pipe; 9. Conduit; 10. Semiconductor refrigerating sheet; 11. Electric push rod. Detailed Embodiment

[0039] Next, in combination with the embodiments of the present application Figures 1-7 , the technical solutions of the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0040] Referring to Figure 1 and Figure 2 , this embodiment provides a drying device for the production of medical degreased gauze, including a drying chamber 1 and an auxiliary drying assembly 2 provided in the drying chamber 1. A drying box 101 is fixedly provided on the top plate of the drying chamber 1, and a hot air blower 102 is fixedly provided on the inner side wall of the drying chamber 1. The air outlet of the drying box 101 is communicated with the air inlet of the hot air blower 102 through an air duct 103. The hot air blower 102 heats and circulates the air dried by the drying box 101, reducing heat energy waste. The auxiliary drying assembly 2 is used to assist in discharging the moisture inside the medical degreased gauze, improving the drying efficiency, and at the same time playing a role in tensioning the medical degreased gauze.

[0041] Referring to Figure 1 , Figure 2 and Figure 3 , the auxiliary drying assembly 2 includes linear guide rails 21, brackets 22, rotating shafts 23 and rollers 24. There are two linear guide rails 21, which are respectively hinged inside the drying chamber 1. Electric push rods 11 are hinged at the lower ends of the left and right side walls of the drying chamber 1. The top ends of the push rods of the electric push rods 11 are respectively hinged to the lower ends of the linear guide rails 21 on the same side. Slide seats 211 are slidably connected to the linear guide rails 21. There are two brackets 22, which are respectively fixedly connected to the two slide seats 211. The two ends of the rotating shaft 23 are respectively rotatably connected to the middle parts of the two brackets 22. The rollers 24 are respectively rotatably connected to the outer arc surfaces of the two brackets 22. The rollers 24 and the rotating shaft 23 are connected by a planetary gear 3. Tooth rings 31 are provided at both left and right ends of the inner arc surface of the roller 24. Three fixed shafts arranged in a circular array inside the bracket 22 are respectively rotatably connected with planetary gears 32. The planetary gears 32 are located in the radial direction of the tooth ring 31. Sun gears 33 are provided at both ends of the rotating shaft 23. The planetary gears 32 are respectively meshed with the sun gears 33 and the tooth rings 31 on the same side. An eccentric block 4 is provided on the rotating shaft 23.

[0042] During the transportation of the medical absorbent gauze inside the drying room 1, the roller 24 abuts against the surface of the medical absorbent gauze. During the transportation of the medical absorbent gauze, the frictional force between the medical absorbent gauze and the outer arc surface of the roller 24 drives the roller 24 to rotate around its own axis. The toothed ring 31 on the inner arc surface of the roller 24 rotates synchronously with the roller 24, and the toothed ring 31 transmits the power to the sun gear 33 through meshing with the planet gear 32, thereby driving the rotation of the rotating shaft 23. The rotating shaft 23 drives the eccentric block 4 to rotate, and the vibration generated by the rotation of the eccentric block 4 is transmitted to the roller 24 through the bracket 22. The roller 24 drives the medical absorbent gauze to generate small-amplitude vibrations, which promotes the faster migration of the moisture inside the medical absorbent gauze to the surface and quickly evaporates under the action of hot air, reducing the difference in the drying speed between the inner and outer sides of the yarns of the medical absorbent gauze, greatly improving the drying efficiency. At the same time, it can effectively prevent the fibers from shrinking excessively due to over-drying and dehydration, thereby avoiding the embrittlement problem caused by the decrease in the bonding force between the surface fibers of the yarn. Moreover, it keeps the arrangement of the fibers always neat and orderly, and the sliding between the fibers is smooth, making the medical absorbent gauze looser, softer, improving the hand feeling, and enhancing the product comfort.

[0043] Among them, the component of the gravity of the roller 24 and its internal components along the direction of the linear guide 21 acts on the bracket 22 through the sliding seat 211, thereby enabling the roller 24 to generate tension on the medical absorbent gauze. The sliding of the sliding seat 211 on the linear guide 21 can effectively adapt to the shrinkage change during the winding of the medical absorbent gauze. When it is necessary to adjust the tension of the medical absorbent gauze, the push rod of the electric push rod 11 drives the linear guide 21 to rotate, adjusts the inclination angle of the linear guide 21, and changes the magnitude of the component of the self-gravity of the roller 24 and the components inside the roller 24 along the direction of the linear guide 21.

[0044] Refer to Figure 1 、 Figure 4 and Figure 5, through holes 241 are evenly arranged on the arc surface of the drum 24. The right end of the drum 24 is of an open structure, facilitating the flow of air. The rotating shaft 23 is rotatably connected to the inner wall of the circular hole provided on the left side plate of the drum 24. The left side plate of the drum 24 seals the left end of the drum 24, enabling more air to pass through the medical absorbent gauze and enter the interior of the drum 24, improving the utilization rate of hot air. A fan blade 6 is fixedly provided at the right end of the rotating shaft 23. The fan blade 6 is located inside the right end of the drum 24. During the rotation of the rotating shaft 23, the fan blade 6 is driven to rotate, causing the air inside the drum 24 to be discharged from the right side. The air outside the drum 24 enters the interior of the drum 24 through the medical absorbent gauze and the through holes 241, promoting the air flow on both sides of the contact part between the medical absorbent gauze and the drum 24 and improving the drying efficiency; convex strips 242 are annularly arrayed on the outer arc surface of the drum 24. The convex strips 242 and the through holes 241 are spaced apart in the circumferential direction of the drum 24. The convex strips 242 abut against the surface of the medical absorbent gauze. The convex strips 242 increase the friction between the medical absorbent gauze and the surface of the drum 24, ensuring the driving effect on the drum 24. At the same time, the convex strips 242 create a certain gap between the contact part of the medical absorbent gauze and the drum 24, facilitating the evaporation of the moisture on the surface of the medical absorbent gauze and improving the drying quality.

[0045] Refer to Figure 3 and Figure 7 , an arc-shaped wind baffle 7 is fixedly arranged on the support 22. The arc-shaped wind baffle 7 is in sliding contact with the inner arc surface of the drum 24. The arc-shaped wind baffle 7 is located on the opposite side of the contact part between the drum 24 and the medical absorbent gauze, blocking the through holes 241 on the opposite side of the contact part between the drum 24 and the medical absorbent gauze, enabling more air to pass through the medical absorbent gauze and take away the moisture on the surface of the medical absorbent gauze; a condensing pipe 8 is arranged on the inner arc surface of the arc-shaped wind baffle 7 to condense the water vapor entering the interior of the drum 24, assisting in reducing the moisture in the circulating air. Semiconductor refrigeration chips 10 are evenly and fixedly arranged on the inner wall surface of the condensing pipe 8. The cold ends of the semiconductor refrigeration chips 10 are in contact with the inner wall surface of the condensing pipe 8. When an electric current passes through the semiconductor refrigeration chips 10, heat transfer will occur between the two ends, and the heat will be transferred from the cold end to the hot end, thereby making the temperature of the tube wall of the condensing pipe 8 lower than the air temperature between the condensing pipe 8 and the drum 24 to maintain the condensation effect. The tube wall of the condensing pipe 8 is in a continuous wavy structure in the axial direction, and the inner diameter of the tube wall of the condensing pipe 8 changes periodically in the axial direction (refer to Figure 6), which causes strong disturbance to the air when it passes through the condenser tube 8, destroys the laminar boundary layer of the air, and makes the air form a turbulent flow. In the turbulent flow state, the heat exchange between the air and the outer wall of the condenser tube 8 is more sufficient, which can improve the heat exchange efficiency and enhance the condensation effect. A confluence groove 71 corresponding to the condenser tube 8 vertically is provided at the bottom of the arc-shaped wind deflector 7. The right end of the confluence groove 71 is communicated with the outside of the drying room 1 through a conduit 9 for discharging the condensed water from the drying room 1. At the same time, the air inside the condenser tube 8 is heated by the hot end of the semiconductor refrigeration sheet 10 and is used to assist in drying the medical absorbent gauze after being discharged from the condenser tube 8, avoiding waste of heat energy.

[0046] Referring to Figure 1 , two guide rollers 5 are rotatably connected between the left and right side walls of the drying room 1. The two guide rollers 5 guide the medical absorbent gauze so that the central angle of the medical absorbent gauze in contact with the roller 24 is not less than 180 degrees. The larger contact central angle can increase the contact area between the medical absorbent gauze and the roller 24, thereby ensuring sufficient friction between the two to drive the roller 24 to rotate. At the same time, the larger contact area enables more surface areas of the medical absorbent gauze to correspond to the through holes 241 on the roller 24, increasing the coverage area of the hot air acting on the medical absorbent gauze through the through holes 241, and further improving the utilization rate of the through holes 241 on the roller 24.

[0047] The implementation principle of a drying device for producing medical absorbent gauze according to an embodiment of the present application is as follows:

[0048] The medical absorbent gauze continuously passes through the drying room 1 under the driving action of a driving mechanism outside the drying room 1 (such as a roller conveying device driven by a common motor, the specific structure of which is a conventional technical means in the art and will not be elaborated here). The medical absorbent gauze sequentially passes through the front guide roller 5, the roller 24, and the rear guide roller 5. The two guide rollers 5 control the walking path of the medical absorbent gauze, so that the central angle of the medical absorbent gauze in contact with the roller 24 is always not less than 180 degrees, ensuring that the surface of the medical absorbent gauze is in full contact with the outer arc surface of the roller 24, and avoiding the situation that the central angle of the medical absorbent gauze in contact with the roller 24 is too small to drive the roller 24 to rotate. The friction between the medical absorbent gauze and the convex strips 242 drives the roller 24 to rotate around its own axis. The toothed ring 31 on the inner arc surface of the roller 24 rotates synchronously with the roller 24. The toothed ring 31 transmits power to the sun gear 33 through meshing with the planet gear 32, thereby driving the rotating shaft 23 to rotate. The rotating shaft 23 drives the eccentric block 4 fixedly connected thereto. The eccentric block 4 generates a small-amplitude vibration during rotation. The vibration is transmitted to the roller 24 through the bracket 22 and is transmitted to the surface of the medical absorbent gauze in close contact through the convex strips 242, forcing the water in the medical absorbent gauze to accelerate and migrate to the surface layer under the action of mechanical energy.

[0049] As the roller 24 continues to rotate, the fan blade 6 fixed to the right end of the rotating shaft 23 rotates at a high speed synchronously, forming a negative pressure area at the right end of the roller 24. Under the action of the pressure difference, the dry hot air provided by the hot air blower 102 in the drying chamber 1 first penetrates the medical absorbent gauze, and then enters the inside of the roller 24 through the through holes 241 uniformly distributed on the outer arc surface of the roller 24. The arc-shaped wind baffle 7 is fixed to the inner side of the bracket 22, and its arc profile is rotatably connected to the inner arc surface of the roller 24, and blocks the through holes 241 on the non-contact side of the roller 24 and the medical absorbent gauze, forcing the air to concentrate and pass through the through holes 241 in the contact area between the medical absorbent gauze and the roller 24. When the air penetrates the medical absorbent gauze, the evaporation of the moisture on the surface of the medical absorbent gauze is accelerated, further improving the drying efficiency of the medical absorbent gauze. When the humid and hot air entering the roller 24 passes through the corrugated condensing pipe 8 inside the arc-shaped wind baffle 7, the cold end of the semiconductor refrigeration sheet 10 reduces the temperature of the pipe wall of the condensing pipe 8 below the dew point. The air forms strong turbulence in the periodic contraction and expansion structure of the corrugated pipe wall, destroying the laminar boundary layer of the air, and enabling the water vapor to fully contact and condense with the low-temperature pipe wall. The condensed water slides down along the pipe wall to the confluence groove 71 at the bottom of the arc-shaped wind baffle 7, and is continuously discharged outside the drying chamber 1 through the conduit 9. The air flowing through the inside of the condensing pipe 8 is heated by the hot end of the semiconductor refrigeration sheet 10 and then re-joins the hot air circulation system to achieve heat energy recovery.

[0050] In addition, in the description of the present application, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

Claims

1. A drying device for producing medical degreased gauze, comprising a drying chamber and a linear guide rail, a bracket, a rotating shaft and a roller arranged in the drying chamber, characterized in that: The linear guide rail is hinged to the inner side wall of the drying chamber, a sliding seat is slidably connected to the linear guide rail, the bracket is fixedly arranged on the sliding seat, the rotating shaft is rotatably connected to the middle of the bracket, the roller is rotatably connected to the outer arc surface of the bracket, the roller and the rotating shaft are connected by a planetary gear drive, the roller abuts against the surface of the medical degreased gauze, and an eccentric block is arranged on the rotating shaft for generating vibration during the conveying of the medical degreased gauze. Two guide rollers are rotatably connected between the left and right side walls of the drying chamber for restricting the central angle size of the contact between the medical degreased gauze and the roller; Through holes are uniformly arranged on the arc surface of the roller, the right end of the roller is of an open structure, the rotating shaft is rotatably connected to the inner wall of the circular hole arranged on the left side plate of the roller, and a fan blade is fixedly arranged at the right end of the rotating shaft. The fan blade is located inside the right end of the roller for promoting the air flow on both sides of the contact part between the medical degreased gauze and the roller; An arc-shaped wind shield is fixedly arranged on the bracket. The arc-shaped wind shield is located on the opposite side of the contact part between the roller and the medical degreased gauze and is in sliding contact with the inner arc surface of the roller; A condensing pipe is arranged on the inner arc surface of the arc-shaped wind shield, a confluence groove corresponding to the condensing pipe vertically is arranged at the bottom of the arc-shaped wind shield, and one end of the confluence groove is communicated with the outside of the drying chamber through a conduit for discharging the condensed water out of the drying chamber; The pipe wall of the condensing pipe is in a continuous wavy structure in the axial direction, and semiconductor refrigeration sheets are uniformly fixedly arranged on the inner wall surface of the condensing pipe. The cold ends of the semiconductor refrigeration sheets are in contact with the inner wall surface of the condensing pipe.

2. The drying device for producing medical absorbent gauze according to claim 1, characterized in that: Convex strips are annularly arranged on the outer arc surface of the roller. The convex strips and the through holes are distributed at intervals in the circumferential direction of the roller, and the convex strips abut against the surface of the medical degreased gauze.

3. A drying device for the production of medical degreased gauze according to claim 1, characterized in that: The planetary gear comprises a toothed ring, planet gears and a sun gear. The toothed ring is fixedly connected to the inner arc surface of the roller. The planet gears are rotatably connected to fixed shafts arranged inside the bracket. The planet gears are located in the radial direction of the toothed ring. The sun gear is arranged on the rotating shaft. The planet gears are respectively meshed and connected with the toothed ring and the sun gear.

4. A drying device for producing medical absorbent gauze according to claim 1, characterized in that: An electric push rod is hinged to the lower end of the side wall of the drying chamber. The top end of the push rod of the electric push rod is hinged to the lower end of the linear guide rail for adjusting the inclination angle of the linear guide rail.

5. A drying device for producing medical degreased gauze according to claim 1, characterized in that: A drying box is fixedly arranged on the top plate of the drying chamber, a hot air blower is fixedly arranged on the inner side wall of the drying chamber, and the air outlet of the drying box is communicated with the air inlet of the hot air blower through a duct.

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