Cylinder cloth sizing and shaping hot air nozzle capable of blowing air in different areas
By setting up a air guide partition in the hot air nozzle, partitioning it into multiple heating channels, and using hot air of different wind speeds and temperatures to dry the slurry strips in partition, the problems of uneven drying and insulation of the slurry strips in the prior art are solved, and the problems of uneven drying and insulation of the slurry strips in the prior art are improved. The quality and production efficiency of slurry strips are achieved.
Patent Information
- Application Number
- CN202420937715.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing hot air nozzle lacks partition design during the blowing process, resulting in uneven drying of the slurry strips in cold environments, affecting the quality of the slurry strips, and requiring additional insulation and cooling steps.
A sizing and shaped hot air nozzle with a partitioned blower is designed. By setting up a air guide partition in the hot air nozzle, it is divided into five channels: preheating, preliminary heating, strong concentrated heating, slow heating and insulation, using different Hot air at wind speed and temperature divides the slurry strips to ensure the performance of the slurry when it solidifies quickly.
The uniform and rapid drying and insulation of the slurry strips are achieved, avoiding additional insulation and cooling steps, and improving the quality and production efficiency of the slurry strips.
Smart Images
Figure CN222220194U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of PVC calendering artificial leather production, and in particular relates to a hot air nozzle for sizing and shaping tubular cloth capable of blowing in different zones. Background Art
[0002] PVC calendered artificial leather is made of PVC rubber and base fabric (also called bottom fabric). The base fabric of artificial leather is mainly knitted tube fabric. During production, a 10cm wide strip of sizing is first applied to the middle of the tube fabric purchased on the market by a sizing roller. A 0.8cm wide non-sizing area is left in the middle of the sizing strip (the blank area is easy to cut). The 10cm wide strip of sizing (commonly known as small sizing due to its narrow width) is dried by hot air. A hot air nozzle is used for hot air drying. The outlet of the existing hot air nozzle is facing the sizing strip, and the hot air is blown into the hot air nozzle. There is no partition inside, and the hot air nozzle blows directly to the pulp strips. This structure of the hot air nozzle has the following disadvantages: the pulp strips move from front to back along with the tube cloth on the sizing and opening production line. There is no partition inside the hot air nozzle, and the pulp strips are blown directly to the pulp strips. Since the pulp strips are still in a fluid state just after sizing, especially in the cold winter, high-temperature air cannot be blown directly, which will change the properties of the slurry and affect the quality of the pulp strips after solidification. In addition, the pulp strips need to be kept warm after high-temperature drying, and then naturally cooled in normal temperature air. Therefore, it is necessary to improve the hot air nozzle, set an air guide baffle inside, and divide the inner cavity of the hot air nozzle into sections to ensure the properties of the pulp strips after rapid drying. Utility Model Content
[0003] The utility model is to solve the above technical problems and provide a hot air nozzle for sizing and shaping tube cloth capable of zoned blowing, which can ensure the quality of the slurry strip after drying and shaping.
[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme: a hot air nozzle for sizing and shaping tube cloth with zoned blowing, comprising an air guide hood which is transparent from top to bottom and larger at the top and smaller at the bottom. The lower port of the air guide hood is provided with a square flange pipe joint, the upper port of the air guide hood is a rectangle with its length direction along the front-to-back direction, the square flange pipe joint is adjacent to the front side of the upper port of the air guide hood, a plurality of air guide baffles are rotatably connected in the square flange pipe joint, the lower end of each air guide baffle is rotatably connected in the square flange pipe joint through a rotating shaft, the rotating shaft is arranged along the left-right direction, a plurality of positioning slots are evenly arranged along the front-to-back direction on the upper edge of the air guide hood, and manual rotating positioning components which are plugged into and matched with a positioning slot on the same side are provided on the left and right sides of the upper end of the air guide baffle.
[0005] The manual rotary positioning assembly includes an ear plate vertically fixedly connected to the air guide baffle, a bottom plate is provided on the outer side surface of the ear plate adjacent to the left or right side of the air guide cover, the bottom plate is in contact with the ear plate and is rotatably connected through a connecting shaft, a limit spring in contact with the inner side surface of the ear plate is provided on the inner end of the connecting shaft, two support plates are fixedly provided at intervals on the front and rear sides of the outer side of the bottom plate, an eccentric wheel is rotatably connected between the two support plates through a pin shaft, an arc groove is provided in the middle of the eccentric wheel for accommodating the outer end head of the connecting shaft, a handle rod is fixedly connected to the outer end of the eccentric wheel, and the handle rod extends into and passes through a positioning slot hole.
[0006] There are four air guide baffles, which divide the internal space of the air guide cover into a preheating channel, a preliminary heating channel, a strong concentrated heating channel, a slow heating channel and a heat preservation channel from front to back.
[0007] By adopting the above technical scheme, the square flange pipe joint at the lower end of the hot air nozzle is connected to the hot air duct, and four air guide baffles are arranged in the hot air nozzle. The four air guide baffles divide the hot air nozzle into five channels (partitions), which are preheating channel, preliminary heating channel, strong concentrated heating channel, slow heating channel and insulation channel from front to back. The hot air temperature in the preheating channel is relatively low, and the pulp strips are preheated first, and then the preliminary heating channel preliminarily heats the pulp strips. Then the strong concentrated heating channel located in the center (the opening in the front and back directions is relatively long) blows concentrated and strong hot air to bake the pulp strips. Subsequently, the hot air blown out of the slow heating channel is relatively gentle, which slowly heats the pulp strips. Finally, the hot air blown out of the insulation channel is more gentle (the air inlet area is much smaller than the air outlet area), which blows and insulates the pulp strips. As the tube cloth moves from front to back, hot air with different wind speeds blows and bakes the pulp strips in turn, which meets the slurry heating and curing process, so that the pulp strips can solidify quickly while ensuring the slurry performance.
[0008] Since different tube cloths need to be sizing with different slurries, the cross-sectional size of the air outlet of each channel needs to be adjusted during the actual production process. The specific adjustment method is: first rotate the handle rod to drive the eccentric wheel to rotate with the pin as the center, the outer circle of the eccentric wheel is separated from the bottom plate, the handle rod is separated from the original positioning slot, and the air guide baffle is rotated and adjusted to the appropriate position. Then, the bottom plate and the two support plates are rotated with the connecting shaft as the center, so that the rotation trajectory of the handle rod with the pin as the center is in the same plane as the length direction of the nearest positioning slot, and then the handle rod is rotated with the pin as the center fulcrum to drive the eccentric wheel to rotate and press the bottom plate, and the handle rod extends into the positioning slot, so that the air guide baffle is positioned.
[0009] The manual rotary positioning assembly uses a handle to drive the eccentric wheel to rotate and press it against the base plate to position the handle rod and rotate the base plate so that the rotation direction of the handle rod is consistent with the length direction of the nearest positioning slot hole. In this way, when rotating and adjusting the air guide baffle, the handle rod of the manual rotary positioning assembly at the upper end of the air guide baffle can be easily rotated into the corresponding positioning slot hole, limiting the air guide baffle from rotating around the rotating shaft, thereby making the operation of adjusting the air guide baffle more convenient and quick.
[0010] To sum up, the utility model has a simple structure and can be improved on the basis of the existing hot air nozzle. The length of the hot air nozzle outlet is increased, and an adjustable and easily positioned air guide baffle is arranged in the hot air nozzle to form multiple heating channels, so that the wind speed and temperature of the hot air in each heating channel can be changed to a certain extent, thereby realizing the zoned drying process of preheating, preliminary heating, strong baking, slow wind heating and hot air insulation of the pulp strips in sequence, which complies with the pulp heating and curing process, so that the pulp strips can solidify quickly while ensuring the performance of the pulp itself. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model;
[0012] Figure 2 yes Figure 1 A schematic diagram of the structure of the manual rotation positioning component;
[0013] Figure 3 yes Figure 2 Side view of the center handle bar and eccentric wheel. DETAILED DESCRIPTION
[0014] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.
[0015] like Figure 1-Figure 3 As shown, the utility model is a hot air nozzle for sizing and shaping tube cloth with partitioned air blowing, including an air guide hood 46 which is transparent from top to bottom and larger at the top and smaller at the bottom. The lower end of the air guide hood 46 is provided with a square flange pipe joint 47, and the upper end of the air guide hood 46 is a rectangle with its length direction along the front-to-back direction. The square flange pipe joint 47 is adjacent to the front side of the upper end of the air guide hood 46, and a plurality of air guide baffles 48 are rotatably connected in the square flange pipe joint 47. The lower end of each air guide baffle 48 is rotatably connected in the square flange pipe joint 47 through a rotating shaft, and the rotating shaft is arranged along the left-right direction. A plurality of positioning slots 49 are evenly arranged along the front-to-back direction on the upper side edge of the air guide hood 46, and manual rotating positioning components 50 which are plugged into and matched with a positioning slot 49 on the same side are provided on both sides of the upper end of the air guide baffle 48.
[0016] The manual rotating positioning assembly 50 includes an ear plate 51 which is vertically fixedly connected to the air guide baffle 48. A bottom plate 52 is provided on the outer side surface of the ear plate 51 adjacent to the left or right side of the air guide cover 46. The bottom plate 52 is in contact with the ear plate 51 and is rotatably connected through a connecting shaft 53. A limit spring 54 which contacts the inner side surface of the ear plate 51 is provided at the inner end of the connecting shaft 53. Two support plates 55 are fixedly provided at intervals on the front and rear sides of the outer side of the bottom plate 52. An eccentric wheel 57 is rotatably connected between the two support plates 55 through a pin shaft 56. An arc groove 58 for accommodating the outer end of the connecting shaft 53 is provided in the middle of the eccentric wheel 57. A handle rod 59 is fixedly connected to the outer end of the eccentric wheel 57. The handle rod 59 extends into and passes through a positioning slot hole 49.
[0017] There are four air guide baffles 48 , which divide the internal space of the air guide cover 46 into a preheating channel 60 , a preliminary heating channel 61 , a strong concentrated heating channel 62 , a slow heating channel 63 and a heat preservation channel 64 from front to back.
[0018] The square flange pipe joint 47 at the lower end of the hot air nozzle is connected to the hot air pipe. Four air guide baffles 48 are arranged in the hot air nozzle. The four air guide baffles 48 divide the hot air nozzle into five channels (partitions), which are a preheating channel 60, a preliminary heating channel 61, a strong concentrated heating channel 62, a slow heating channel 63 and a heat preservation channel 64 from front to back. The hot air temperature in the preheating channel 60 is relatively low, so the pulp strips are preheated first, and then the preliminary heating channel 61 preliminarily heats the pulp strips, and then the strong concentrated heating channel 62 located in the center is heated. The concentrated heating channel 62 (the opening in the front-to-back direction is relatively long) blows concentrated and strong hot air to bake the pulp strips, and then the hot air blown out by the slow heating channel 63 is relatively gentle, which slowly heats the pulp strips. Finally, the hot air blown out by the heat-insulating channel 64 is even gentler (the area of the air inlet is much smaller than the area of the air outlet), which blows and keeps the pulp strips warm. As the tube cloth moves from front to back, hot air of different wind speeds blows and bakes the pulp strips in turn, which complies with the pulp heating and curing process, so that the pulp strips can solidify quickly while ensuring the pulp performance.
[0019] Since different tube cloths need to be sizing with different slurries, the cross-sectional size of the air outlet of each channel needs to be adjusted during the actual production process. The specific adjustment method is: first rotate the handle bar 59 to drive the eccentric wheel 57 to rotate around the pin shaft 56, the outer circle of the eccentric wheel 57 is separated from the bottom plate 52, and the handle bar 59 is separated from the original positioning slot 49. After the air guide baffle 48 is rotated and adjusted to a suitable position, the bottom plate 52 and the two support plates 55 are rotated around the connecting shaft 53, so that the rotation trajectory of the handle bar 59 around the pin shaft 56 is in the same plane as the length direction of the nearest positioning slot 49, and then the handle bar 59 is rotated around the pin shaft 56 as the center fulcrum, driving the eccentric wheel 57 to rotate and press the bottom plate 52, and the handle bar 59 extends into the positioning slot 49, so that the air guide baffle 48 is positioned.
[0020] The manual rotation positioning assembly 50 uses a handle to drive the eccentric wheel 57 to rotate and press against the base plate 52 to position the handle rod 59, and rotates the base plate 52 so that the rotation direction of the handle rod 59 is consistent with the length direction of the nearest positioning slot hole 49. In this way, when rotating and adjusting the air guide baffle 48, the handle rod 59 of the manual rotation positioning assembly 50 at the upper end of the air guide baffle 48 can be easily rotated into the corresponding positioning slot hole 49, limiting the air guide baffle 48 from rotating around the rotating shaft, thereby making the operation of adjusting the air guide baffle 48 more convenient and quick.
[0021] The above embodiments illustrate the basic principles and features of the utility model, but the above only illustrates the preferred embodiments of the utility model and is not limited by the embodiments. Under the inspiration of this patent, ordinary technicians in this field can also make many forms of deformation and improvement without departing from the purpose of the utility model and the scope of protection of the claims, which are all within the scope of protection of the utility model. Therefore, the patent and protection scope of the utility model shall be subject to the attached claims.
Claims
1. A hot air nozzle for sizing and shaping tubular cloth with zoned blowing, characterized in that: It includes an air guide cover that is transparent from top to bottom and larger at the top and smaller at the bottom. The lower port of the air guide cover is provided with a square flange pipe joint. The upper port of the air guide cover is a rectangle with its length direction along the front-to-back direction. The square flange pipe joint is adjacent to the front side of the upper port of the air guide cover. A number of air guide baffles are rotatably connected in the square flange pipe joint. The lower end of each air guide baffle is rotatably connected in the square flange pipe joint through a rotating shaft. The rotating shaft is arranged in the left-right direction. A number of positioning slots are evenly arranged along the front-to-back direction on the upper edge of the air guide cover. Manual rotating positioning components that are plugged into and matched with a positioning slot on the same side are provided on the left and right sides of the upper end of the air guide baffle.
2. The hot air nozzle for sizing and shaping tubular cloth with zoned blowing according to claim 1, characterized in that: The manual rotary positioning assembly includes an ear plate vertically fixedly connected to the air guide baffle, a bottom plate is provided on the outer side surface of the ear plate adjacent to the left or right side of the air guide cover, the bottom plate is in contact with the ear plate and is rotatably connected through a connecting shaft, a limit spring in contact with the inner side surface of the ear plate is provided on the inner end of the connecting shaft, two support plates are fixedly provided at intervals on the front and rear sides of the outer side of the bottom plate, an eccentric wheel is rotatably connected between the two support plates through a pin shaft, an arc groove is provided in the middle of the eccentric wheel for accommodating the outer end head of the connecting shaft, a handle rod is fixedly connected to the outer end of the eccentric wheel, and the handle rod extends into and passes through a positioning slot hole.
3. A hot air nozzle for sizing and shaping tubular cloth with zoned blowing according to claim 1 or 2, characterized in that: There are four air guide baffles, which divide the internal space of the air guide cover into a preheating channel, a preliminary heating channel, a strong concentrated heating channel, a slow heating channel and a heat preservation channel from front to back.