Hot air assembly capable of flexibly adjusting air volume for fixation and carding machine

Abstract

The utility model discloses a fixation and carding machine hot air assembly capable of flexibly adjusting air volume, which comprises a fixation and carding machine body and an air heater, an air distribution cover and a hot air assembly are sequentially arranged above the fixation and carding machine body, and the hot air assembly comprises a first air distribution plate, a rotary grating plate, an upper filtering air plate, a lower filtering air plate and a control unit. A first air distribution plate is arranged to uniformly distribute and buffer hot air for the first time; a rotary grating plate, an upper filtering air plate and a lower filtering air plate are arranged to adjust and control the quantity of passing hot air, and a second air distribution plate is arranged to evenly distribute and buffer the hot air for the second time; therefore, the hot air volume in the air distribution cover can be flexibly adjusted. The problem that a traditional hot air assembly cannot control the hot air volume is solved, and the function that the hot air volume can be flexibly adjusted is achieved.

Description

Technical Field

[0001] This utility model relates to the field of blanching and shaping machine technology, specifically a hot air component for a blanching and shaping machine with flexibly adjustable air volume. Background Technology

[0002] Hot air fixation machines for tea use high-temperature hot air to contact fresh leaves, transferring heat to them. Due to the significant temperature difference between the leaves and the hot air, the heat quickly penetrates the leaves, causing a rapid rise in leaf temperature. This effectively deactivates enzymes, completing the fixation process. The shaping technique is crucial for forming strip-shaped green tea. Because hot air fixation machines use 300-350℃ hot air for fixation, the large temperature difference between the hot air and the fresh leaves causes the leaf temperature to rise very quickly. The fixation process is typically completed within 20 seconds, posing a challenge to controlling the high-temperature hot air in the fixation and shaping machine.

[0003] For example, Chinese invention patent CN220476785U, published on February 13, 2024, discloses a hot air assembly for a tea-processing and drying machine. The assembly includes a hot air blower and a flow guiding and conveying component. This component includes a flow guide pipe mounted on the hot air blower for conveying airflow, and a diffuser with a trapezoidal vertical cross-section at one end of the flow guide pipe. This invention utilizes the trapezoidal cross-section of the diffuser to diffuse the hot airflow within it, preventing excessive pressure from the flow guide pipe that could cause the tea leaves to disperse. A converging hood gathers and guides the hot airflow from the diffuser downwards, heating and drying the tea leaves. The S-shaped cross-section of the flow divider creates a vortex, increasing the traction force of the airflow and facilitating its conveying on the tea-processing machine.

[0004] As can be seen from the above patents, the hot air assembly guides the airflow through diffusion through a diffuser and convergence through a converging hood, but it cannot control the air volume of the hot air. Therefore, this utility model provides a hot air assembly for a blanching and shaping machine with adjustable air volume to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a hot air assembly for a blanching and shaping machine with flexibly adjustable airflow.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A hot air assembly for a blanching and shaping machine with adjustable airflow includes a machine body and a hot air blower. A wind hood is positioned above the machine body, and the hot air assembly is positioned above the wind hood. The hot air assembly is connected to the hot air blower via a hot air duct. The upper and lower parts of the hot air assembly have vertical isosceles trapezoidal and rectangular cross-sections, respectively. Inside the hot air assembly, from top to bottom, are arranged a first wind distribution plate, a rotating grid plate, an upper filter plate, and a lower filter plate. The first wind distribution plate has a plurality of evenly spaced ventilation holes distributed from left to right and front to back. The rotating grid plate has a plurality of evenly spaced grids distributed from left to right. The upper and lower filter plates have a plurality of evenly spaced ventilation holes distributed from left to right and front to back. The upper and lower filter plates are slidably fitted together. A control unit is also provided on the outer wall of the right end of the hot air assembly.

[0008] Preferably, the rotating grating plate includes a grating, a rotating shaft, a connecting rod, and a rotating mechanism. The rotating shaft is located at the central axis of the grating and is rotatably connected to the front and rear ends of the rotating grating plate. All rotating shafts extend forward and are fixedly connected to the connecting rod. A rotating mechanism is located at the right corner of the front end of the rotating grating plate and is meshed with the rightmost rotating shaft. The rotating mechanism is electrically connected to the control unit.

[0009] Preferably, the area of ​​all the vents on the first air distribution plate is 2 to 8 times the area of ​​the circular cross-sectional area of ​​the top of the hot air assembly.

[0010] Preferably, the lateral width of the grille is equal to the lateral spacing between the rotating shafts, and the lateral spacing between the rotating shafts at the left and right ends and the edge of the rotating grille plate is 1 / 2 of the lateral width of the grille.

[0011] Preferably, the vent holes of the upper and lower filter plates are positioned correspondingly. The distance between the left and right ends of the upper filter plate and the lower left and right inner walls of the hot air assembly is the diameter of the vent hole. Push rods are provided on both sides of the right end of the upper filter plate, and the push rods are electrically connected to the control unit. The distance between the leftmost and rightmost vent holes of the lower filter plate and the lower left and right inner walls of the hot air assembly is the diameter of the vent hole.

[0012] Preferably, a second air distribution plate is provided in the upper part of the air distribution hood.

[0013] The beneficial effects of this utility model are:

[0014] A first air distribution plate provides initial uniform distribution and buffering of the hot air; a rotating grille, upper filter plate, and lower filter plate adjust and control the flow rate of the hot air; a second air distribution plate provides a second round of uniform distribution and buffering of the hot air; thus, the flow rate of the hot air within the air distribution hood can be flexibly adjusted. This application solves the problem that traditional hot air assemblies cannot control the flow rate of hot air, achieving flexible adjustment of the hot air flow rate. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the hot air assembly of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the rotating grid plate of this utility model;

[0020] Figure 4 This is a schematic diagram of the upper filter plate of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the lower filter plate of this utility model;

[0022] The diagram shows: 1. Body of the blanching and shaping machine; 2. Hot air blower; 3. Air hood; 4. Hot air assembly; 41. First air distribution plate; 42. Rotating grille plate; 421. Grille; 422. Rotating shaft; 423. Connecting rod; 424. Rotating mechanism; 43. Upper filter air plate; 431. Push rod; 44. Lower filter air plate; 45. Control unit; 46. Second air distribution plate; 5. Hot air duct. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0026] It should be noted that similar labels and letters are likely to represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Reference Figure 1-2This utility model discloses a hot air assembly for a blanching and shaping machine with adjustable airflow, comprising a machine body 1 and a hot air blower 2. A distribution hood 3 is installed above the machine body 1 to evenly distribute the hot air. A hot air assembly 4 is installed above the distribution hood 3 to adjust and distribute the hot air volume. The hot air assembly 4 is connected to the hot air blower 2 via a hot air pipe 5, and the hot air blower 2 provides high-temperature hot airflow to the hot air assembly 4 through the hot air pipe 5. The upper and lower parts of the hot air assembly 4 are vertical isosceles trapezoidal and rectangular sections, respectively. The surface structure facilitates the diffusion of hot air and buffers the impact of hot air. Inside the hot air assembly 4, from top to bottom, a first air distribution plate 41, a rotating grille plate 42, an upper filter plate 43, and a lower filter plate 44 are arranged sequentially. A control unit 45 is also provided on the outer wall of the right end of the hot air assembly 4. Several air vents are evenly distributed at equal intervals from left to right and from front to back on the first air distribution plate 41. The area of ​​all the air vents on the first air distribution plate 41 is 2 to 8 times the area of ​​the circular cross-section at the top of the hot air assembly 4, so as to ensure that the air vents can uniformly distribute and buffer the hot air for the first time.

[0030] Reference Figure 3 The rotating grille 42 includes grilles 421, a rotating shaft 422, a connecting rod 423, and a rotating mechanism 424. The volume of hot air passing through can be adjusted and controlled by rotating the grilles 421. Several grilles 421 are evenly distributed from left to right on the rotating grille 42. The rotating shaft 422 is set at the central axis of the grilles 421. The rotating shaft 422 is rotatably connected to the front and rear ends of the rotating grille 42. The lateral width of the grilles 421 is equal to the lateral spacing between the rotating shafts 422, that is, when adjacent grilles 421 are placed laterally, they can cover the gap between adjacent rotating shafts 422. The lateral spacing between the rotating shafts 422 at the left and right ends and the edge of the rotating grille 42 is 1 / 2 of the lateral width of the grilles 421. That is, when the grilles 421 at the left and right ends are placed laterally, they can cover the lateral gap between the rotating shafts 422 at the left and right ends and the edge of the rotating grille 42. This ensures that the grilles 421 can cover the entire rotating grille 42 when placed laterally, thus blocking all the hot air. All rotating shafts 422 extend forward and are fixedly connected to connecting rods 423. Connecting rods 423 can fix and drive the synchronous grille 421 to rotate. A rotating mechanism 424 is provided at the front right corner of the rotating grille plate 42. The rotating mechanism 424 is meshed with the rightmost rotating shaft 422. The rotating mechanism 424 is electrically connected to the control unit 45. The control unit 45 controls and drives the rotating mechanism 424 to rotate, which drives the rightmost rotating shaft 422 to rotate, thereby driving all rotating shafts 422 to rotate, and finally driving the grille 421 to rotate. This changes the angle between the grille 421 and the rotating grille plate 42, thereby flexibly adjusting and controlling the amount of hot air passing through the rotating grille plate 42.

[0031] Reference Figure 4-5The upper filter plate 43 and the lower filter plate 44 have a number of air vents evenly distributed from left to right and front to back. The upper filter plate 43 and the lower filter plate 44 slide together and work together to adjust and control the heat of the passing hot air by the degree of overlap of the air vents. The positions of the air vents of the upper filter plate 43 and the lower filter plate 44 are corresponding. The distance between the left and right ends of the upper filter plate 43 and the lower left and right inner walls of the hot air assembly 4 is the diameter of the air vent, which allows the upper filter plate 43 to slide left and right to change the degree of overlap of the air vents of the upper filter plate 43 and the lower filter plate 44. Push rods 431 are provided on both sides of the right end of the air filter plate 43. The push rods 431 are used for the upper air filter plate 43 to slide left and right on the lower air filter plate 44. The push rods 431 are electrically connected to the control unit 45, and the control unit 45 controls the push rods 431 to be pushed. The distance between the leftmost and rightmost vent holes of the lower air filter plate 44 and the left and right inner walls of the lower part of the hot air assembly 4 is the diameter of the vent hole. That is, when the vent hole positions coincide, the upper air filter plate 43 moves the diameter of the vent hole to the left and right on the lower air filter plate 44 respectively. The upper air filter plate 43 can cover the position of the vent hole of the lower air filter plate 44, which can block all the hot air.

[0032] In an optional embodiment, a second air distribution plate 46 is provided in the upper part of the air distribution hood 3 to distribute and buffer the hot air a second time.

[0033] Of course, the embodiments described in this specific implementation are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A flexible volume adjustable hot air assembly of a fixation and slivering machine, comprising a fixation and slivering machine body (1) and a hot air machine (2), wherein a wind distribution cover (3) is arranged above the fixation and slivering machine body (1), a hot air assembly (4) is arranged above the wind distribution cover (3), and the hot air assembly (4) is connected with the hot air machine (2) through a hot air pipe (5); characterized in that: The upper and lower parts of the hot air assembly (4) are vertical isosceles trapezoidal cross section and rectangular cross section respectively, the first air distribution plate (41), the rotating grid plate (42), the upper filter air plate (43) and the lower filter air plate (44) are sequentially arranged inside the hot air assembly (4) from top to bottom, a plurality of air holes are uniformly distributed on the first air distribution plate (41) from left to right and from front to back at equal intervals, a plurality of grids (421) are uniformly distributed on the rotating grid plate (42) from left to right at equal intervals, a plurality of air holes are uniformly distributed on the upper filter air plate (43) and the lower filter air plate (44) from left to right and from front to back at equal intervals, and the upper filter air plate (43) and the lower filter air plate (44) are slidably attached together; the control unit (45) is further arranged on the outer wall of the right end of the hot air assembly (4).

2. The hot air assembly of the heat setting and drawing frame capable of flexibly adjusting the air volume according to claim 1, characterized in that: The rotating grid plate (42) comprises the grid (421), the rotating shaft (422), the connecting rod (423) and the rotating mechanism (424), the rotating shaft (422) is arranged at the central axis of the grid (421), the rotating shaft (422) is rotatably connected to the front and rear ends of the rotating grid plate (42), all the rotating shafts (422) are fixedly connected with the connecting rod (423) by extending forward, the rotating mechanism (424) is arranged at the right corner of the front end of the rotating grid plate (42), and the rotating mechanism (424) is toothedly connected with the rightmost rotating shaft (422); the rotating mechanism (424) is electrically connected with the control unit (45).

3. The hot air assembly of the heat setting and drawing frame capable of flexibly adjusting the air volume according to claim 1, characterized in that: The area of all the air holes on the first air distribution plate (41) is 2-8 times the area of the circular cross section at the top of the hot air assembly (4).

4. The hot air assembly of the heat setting and drawing frame capable of adjusting the air volume flexibly according to claim 2, characterized in that: The transverse width of the grid (421) is equal to the transverse spacing between the rotating shafts (422), and the transverse spacing between the rotating shafts (422) at the left and right ends and the edges of the rotating grid plate (42) is 1 / 2 of the transverse width of the grid (421).

5. The hot air assembly of the heat setting and drawing frame capable of adjusting the air volume flexibly according to claim 1, characterized in that: The air hole positions of the upper filter air plate (43) and the lower filter air plate (44) correspond to each other, the spacing between the left and right ends of the upper filter air plate (43) and the left and right inner walls of the lower part of the hot air assembly (4) is the diameter of the air hole, push rods (431) are arranged at the right end of the upper filter air plate (43), the push rods (431) are electrically connected with the control unit (45), and the spacing between the leftmost and rightmost air holes of the lower filter air plate (44) and the left and right inner walls of the lower part of the hot air assembly (4) is the diameter of the air hole.

6. The hot air assembly of the heat setting and drawing frame capable of adjusting the air volume flexibly according to claim 1, characterized in that: The second air distribution plate (46) is arranged in the upper part of the air distribution cover (3).

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