A kind of fixation unit

Abstract

The utility model discloses a kind of fixation units, including fixation, the discharge end of fixation is butt-jointed to be provided with cooling conveyor, the discharge end of cooling conveyor is butt-jointed to be provided with winnowing machine, cooling conveyor includes conveyer frame, screen conveyor belt being set on conveyer frame, the lower layer of screen conveyor belt is below the conveyer frame and is provided with the first cooling fan of upwards air blowing, the upper layer of screen conveyor belt is above the conveyer frame and is provided with the second cooling fan of downwards air blowing. Through the utility model unit, tea fixation uniformity can be improved, the influence of high-temperature rolling on quality is avoided, impurity removal effect is good, tea quality can be significantly improved, and can be widely applied in tea processing technical field.

Description

Technical Field

[0001] This utility model relates to the field of tea processing technology, and in particular to the design of a fixation machine. Background Technology

[0002] As the core process in green tea processing, the purpose of fixing is to use high temperature to quickly destroy the enzyme activity in fresh leaves, prevent the enzymatic oxidation of polyphenols, and evaporate some moisture, making the leaves soft and ready for the subsequent rolling process.

[0003] In current common tea production, after the fixation process, tea leaves are usually immediately transported to a rolling machine for further processing. This direct connection between fixation and rolling has the following drawbacks: First, the temperature of freshly fixed tea leaves is high, and direct rolling can easily cause adverse transformations of the tea's internal substances under the influence of heat and moisture, resulting in a large degradation of chlorophyll. This leads to a yellowish tea liquor, dull leaf appearance, and a significant decrease in aroma and freshness, ultimately affecting the quality and grade of the tea. Second, the soft and sticky texture of tea leaves at high temperatures makes them prone to clumping during rolling, making it difficult to disperse evenly. This not only results in uneven rolling and an unsatisfactory cell breakage rate but also leads to poor tea leaf formation and excessive dust, directly affecting the appearance and brewing performance of the tea. Furthermore, during the fixation process, impurities such as old leaves, yellow leaves, tea stems, or small fragments produced during processing are difficult to remove effectively. These impurities enter the rolling machine along with the fixed leaves, eventually becoming trapped inside the tea leaves and mixed into the finished tea, reducing its quality. Therefore, targeted improvements need to be made to the existing methods of connecting blanching and kneading. Utility Model Content

[0004] The purpose of this utility model is to provide a blanching machine to solve the related problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including a blanching machine, wherein a cooling conveying device is connected to the discharge end of the blanching machine, and an air classifier is connected to the discharge end of the cooling conveying device;

[0006] Furthermore, the cooling conveying device includes a conveyor frame, a screen conveyor belt disposed on the conveyor frame, a first cooling fan blowing upwards located below the lower layer of the screen conveyor belt on the conveyor frame, and a second cooling fan blowing downwards located above the upper layer of the screen conveyor belt on the conveyor frame.

[0007] To ensure effective cooling, the first cooling fan is located between the upper and lower layers of the screen conveyor belt.

[0008] To facilitate the installation of the first cooling fan and other structures, a drive roller is provided at one end of the conveyor frame and a driven roller is provided at the other end. A first reversing roller and a second reversing roller are provided on the conveyor frame between the drive roller and the driven roller. The screen conveyor belt is threaded onto the drive roller, the first reversing roller, the second reversing roller and the driven roller.

[0009] To avoid waste and maintain cleanliness, the discharge end of the screen conveyor belt is also equipped with a brush roller for brushing off tea leaves that stick to the screen conveyor belt.

[0010] To prevent the tea leaves from being blown away, a mesh cover is installed on the conveyor frame above the screen conveyor belt, and the mesh cover is located above the first cooling fan.

[0011] To facilitate the handling of impurities and tea dust blown off by the second cooling fan, a waste guide plate is provided on the conveyor frame below the upper layer of the screen conveyor belt, and the waste guide plate is located below the second cooling fan. A waste recycling box that connects to the waste guide plate is also provided on the conveyor frame.

[0012] To ensure uniform heating during the withering process, the withering machine includes a withering machine frame and a withering roller mounted on the withering machine frame. One end of the withering roller has a withering feed inlet, and a shaking and dispersing machine is connected to the withering feed inlet. The shaking and dispersing machine includes a shaking and dispersing machine frame adapted to the withering feed inlet, a movable shaking and dispersing groove mounted on the shaking and dispersing machine frame, a set of elastic support plates between the shaking and dispersing groove and the shaking and dispersing machine frame, and a shaking drive device that drives the shaking and dispersing groove to shake on the shaking and dispersing machine frame.

[0013] Furthermore, the shaking drive device includes a shaking motor fixed on the shaking frame, a cam mounted on the output shaft of the shaking motor, and a rocker arm provided between the cam and the shaking groove. One end of the rocker arm is hinged to the cam, and the other end is hinged to the shaking groove.

[0014] To ensure the air separation and impurity removal effect, the air separator includes an air separator body and an air separation and impurity removal feed inlet located above the air separator body. A miniature shaking machine is fixedly installed at the air separation and impurity removal feed inlet. The structure and principle of the miniature shaking machine are the same as those of the shaking machine.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model incorporates a cooling and conveying device after the tea-processing machine. The tea is conveyed via an inclined screen conveyor belt, and a first and second cooling fan blows air from both the upper and lower sides of the conveyor belt for efficient cooling. This quickly lowers the tea temperature to a suitable range for rolling, effectively preventing chlorophyll degradation caused by high temperature and humidity, reducing yellowing of the tea liquor and dullness of the tea leaves, and preventing adverse transformation of the tea's internal substances. Simultaneously, a brush roller at the discharge end of the screen conveyor belt brushes off any tea leaves adhering to the belt and feeds them into subsequent stages, effectively reducing waste during transport and ensuring equipment cleanliness. Furthermore, a waste guide plate and recycling box effectively collect impurities and tea dust blown off by the second cooling fan, preventing them from being trapped inside the tea leaves during the rolling process.

[0017] 2. Before entering the rolling machine, the tea leaves are separated by an air separator to remove impurities such as old leaves, yellow leaves, and tea stems. This prevents impurities from being rolled together with the finished tea, significantly improving the purity of the tea and further ensuring its quality. Simultaneously, a miniature shaker is installed at the air separator's inlet. Before entering the air separator, the tea leaves are shaken to prevent clumping and to separate impurities from the tea, further facilitating sorting and impurity removal.

[0018] 3. By installing a shaking and dispersing device at the feed end of the fixing machine, the tea leaves are effectively prevented from clumping before fixing. This ensures that the tea leaves are heated evenly after entering the fixing drum, reducing the possibility of insufficient or excessive fixing in certain areas, ensuring the stability of the fixing process, and further guaranteeing the quality of the tea. Attached Figure Description

[0019] Figure 1 This is the front view of the present invention.

[0020] Figure 2 This is a front view of the shaking and scattering machine in this utility model.

[0021] Figure 3 This is a left view of the assembly of the shaking trough and the blanching feed inlet in this utility model.

[0022] Figure 4 This is a front view of the cooling conveying device in this utility model.

[0023] Figure 5 This is the assembly front view of the wind separator and miniature shaking machine of this utility model. Detailed Implementation

[0024] Examples, such as Figure 1-5As shown, a tea-processing unit includes a tea-processing machine 1. A shaking machine 4 is connected to the feeding section of the tea-processing machine 1, a cooling conveying device 2 is connected to the discharge end of the tea-processing machine 1, and an air classifier 3 is connected to the discharge end of the cooling conveying device 2. The tea leaves are shaken apart by the shaking machine 4 before tea processing (tea processing). After tea processing, the tea leaves are cooled by the cooling conveying device 2 and finally removed from impurities by the air classifier 3. This invention allows for the cooling, impurity removal, and subsequent rolling of the tea leaves after tea processing.

[0025] Specifically, such as Figure 2 , 3 As shown, the blanching machine 1 includes a blanching machine frame 11 and a blanching roller 12 rotatably mounted on the blanching machine frame 11. One end of the blanching roller 12 has a blanching feed inlet 121, and a shaking machine 4 is connected to the blanching feed inlet 121. The shaking machine 4 includes a shaking machine frame 41 adapted to the blanching feed inlet 121 and a movable shaking groove 42 mounted on the shaking machine frame 41. The discharge end of the shaking groove 42 extends into the blanching roller 12 from the blanching feed inlet 121, and the feed end of the shaking groove 42 is slightly higher than the discharge end. A set of elastic support plates 43 is provided between the shaking groove 42 and the shaking machine frame 41. The elastic support plates 43 are elastic steel plates. The shaking machine frame 41 is also provided with a shaking drive device 44 that drives the shaking groove 42 to shake. Before entering the fixing drum, the tea leaves are first shaken and dispersed by the shaking trough 42 to prevent clumping and ensure even heating during fixing. It should be noted that the fixing machine 1 is a hot air fixing machine, which is existing technology and will not be described in detail here.

[0026] To achieve the shaking and dispersing effect, the shaking and dispersing drive device 44 includes a shaking and dispersing motor 441 fixed on the shaking and dispersing frame 41, a cam 442 mounted on the output shaft of the shaking and dispersing motor 441, and a rocker arm 443 disposed between the cam 442 and the shaking and dispersing groove 42. One end of the rocker arm 443 is hinged to the flange of the cam 442, and the other end is hinged to the fixed seat 421 of the shaking and dispersing groove 42. The shaking and dispersing motor 441 drives the cam 442 to rotate, and the cam 442 drives the rocker arm 443 to reciprocate. Under the elastic support of the elastic support plate 43, the shaking and dispersing groove 42 is shaken, thereby shaking and dispersing the tea leaves and feeding them into the fixing machine.

[0027] After the tea leaves are processed (killed), they are conveyed forward and cooled by the cooling conveyor device 2. Figure 4As shown, the cooling conveying device 2 includes a conveyor frame 21 and a screen conveyor belt 22 inclinedly mounted on the conveyor frame 21. The feed end of the screen conveyor belt 22 is lower than the discharge end, with its feed end located below the blanching discharge port 122 and its discharge end located above the feed end of the elevator 6. A first cooling fan 23 blowing upwards is installed on the conveyor frame 21 below the lower layer of the screen conveyor belt 22, and a second cooling fan 24 blowing downwards is installed on the conveyor frame 21 above the upper layer of the screen conveyor belt 22. Tea leaves fall from the blanching drum 12 onto the screen conveyor belt 22 and are conveyed obliquely upwards, cooled by air blowing from both the top and bottom by the first cooling fan 23 and the second cooling fan 24.

[0028] To ensure effective cooling, the first cooling fan 23 is positioned between the upper and lower layers of the screen conveyor belt 22, allowing the airflow from the first cooling fan 23 to pass directly through the upper layer of the screen conveyor belt 22 and blow onto the tea leaves. This avoids the airflow from the first cooling fan 23 passing through the lower layer of the screen conveyor belt 22 first, which would weaken the airflow and affect the cooling effect. To prevent the tea leaves from being blown away, a mesh cover 211 is installed on the conveyor frame 21 above the upper layer of the screen conveyor belt 22, and the mesh cover 211 is positioned above the first cooling fan 23. The mesh cover 211 prevents the tea leaves from being blown away. A waste guide plate 212 is inclinedly arranged on the conveyor frame 21 below the upper layer of the screen conveyor belt 22, and the waste guide plate 212 is located below the second cooling fan 24. A waste recycling box 213 is also provided on the conveyor frame 21 to connect with the waste guide plate 212. When the second cooling fan 24 blows downward, small impurities or tea dust may be blown off to prevent them from falling back to the lower layer of the screen conveyor belt 22. Therefore, they are caught by the waste guide plate 21 and collected by the waste recycling box 213.

[0029] To facilitate the installation of the first cooling fan 23, the conveyor frame 21 is equipped with a drive roller 25 at the discharge end and a driven roller 26 at the feed end. The drive roller 25 is connected to a motor. A first reversing roller 27 and a second reversing roller 28 are arranged on the conveyor frame 21 between the drive roller 25 and the driven roller 26. The first reversing roller 27 is located close to the drive roller 25, and the second reversing roller 28 is located below the first reversing roller 27. The screen conveyor belt 22 is fitted onto the drive roller 25, the first reversing roller 27, the second reversing roller 28, and the driven roller 26. The direction of the screen conveyor belt 22 is changed by the cooperation of the first reversing roller 26 and the second reversing roller 27, so that the lower layer of the screen conveyor belt 22 is arranged along the bottom of the conveyor frame 21. This leaves sufficient space between the upper and lower layers of the screen conveyor belt 22 for the installation of the first cooling fan 23, the waste guide plate 212 docking, and the waste recycling box 213, which facilitates installation.

[0030] The discharge end of the screen conveyor belt 22 is also equipped with a brush roller 29 for brushing off tea leaves adhering to the screen conveyor belt 22. The brush roller 29 is positioned between the drive roller 25 and the first deflecting roller 27, and is attached to the lower end face of the screen conveyor belt 22. The brush roller 29 is driven by a motor. By rotating the brush roller 29 with the motor, the tea leaves adhering to the screen conveyor belt 22 are brushed off and fall into the feed end of the elevator 6, which not only reduces waste but also keeps the equipment clean.

[0031] After cooling, the tea leaves fall from the discharge end of the screen conveyor belt 22 into the feed end of the elevator 6, and are then lifted by the elevator 6 to the feed end of the air separator 3. Figure 5 As shown, the air classifier 3 includes an air classifier body 31 and an air classifier impurity removal feed inlet 32 ​​disposed above the air classifier body 31. To ensure the impurity removal effect, a miniature shaking machine 5 is fixedly installed at the air classifier impurity removal feed inlet 32. The structure and principle of the miniature shaking machine 5 are the same as those of the shaking machine 4. Before entering the air classifier body 31, the tea leaves are first shaken by the shaking groove of the miniature shaking machine 5, and then fall from the shaking groove into the air classifier impurity removal feed inlet 32 ​​to prevent the tea leaves from clumping and affecting the air classifier impurity removal. Finally, the tea leaves are discharged from the outlet of the air classifier 3 and sent to the rolling machine for rolling by a conveyor. It should be noted that the air classifier is existing technology and will not be described in detail here.

[0032] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A blanching machine unit, characterized in that: Includes a blanching machine (1), wherein a cooling conveying device (2) is connected to the discharge end of the blanching machine (1), and an air separator (3) is connected to the discharge end of the cooling conveying device (2). The cooling conveying device (2) includes a conveyor frame (21), a screen conveyor belt (22) set on the conveyor frame (21), a first cooling fan (23) blowing upwards is set on the conveyor frame (21) below the lower layer of the screen conveyor belt (22), and a second cooling fan (24) blowing downwards is set on the conveyor frame (21) above the upper layer of the screen conveyor belt (22).

2. The blanching machine unit according to claim 1, characterized in that: The first cooling fan (23) is located between the upper and lower layers of the screen conveyor belt (22).

3. The blanching machine unit according to claim 2, characterized in that: One end of the conveyor frame (21) is provided with a drive roller (25) and the other end is provided with a driven roller (26). A first reversing roller (27) and a second reversing roller (28) are provided on the conveyor frame (21) between the drive roller (25) and the driven roller (26). The screen conveyor belt (22) is threaded on the drive roller (25), the first reversing roller (27), the second reversing roller (28) and the driven roller (26).

4. The blanching machine unit according to claim 1, characterized in that: The discharge end of the screen conveyor belt (22) is also provided with a brush roller (29) for brushing off the tea leaves that are stuck to the screen conveyor belt (22).

5. The blanching machine unit according to claim 1, characterized in that: A mesh cover (211) is provided on the conveyor frame (21) above the screen conveyor belt (22), and the mesh cover (211) is located above the first cooling fan (23).

6. The blanching machine unit according to claim 1, characterized in that: A waste guide plate (212) is provided on the conveyor frame (21) below the upper layer of the screen conveyor belt (22), and the waste guide plate (212) is located below the second cooling fan (24). A waste recycling box (213) that is connected to the waste guide plate (212) is also provided on the conveyor frame (21).

7. The blanching machine unit according to claim 1, characterized in that: The blanching machine (1) includes a blanching machine frame (11) and a blanching roller (12) arranged on the blanching machine frame (11). One end of the blanching roller (12) is provided with a blanching feed inlet (121). A shaking machine (4) is connected to the blanching feed inlet (121). The shaking machine (4) includes a shaking machine frame (41) adapted to the blanching feed inlet (121), and a movable shaking groove (42) is arranged on the shaking machine frame (41). A set of elastic support plates (43) is arranged between the shaking groove (42) and the shaking machine frame (41). A shaking drive device (44) for driving the shaking groove (42) to shake is also provided on the shaking machine frame (41).

8. The blanching machine unit according to claim 7, characterized in that: The shaking drive device (44) includes a shaking motor (441) fixed on the shaking frame (41), a cam (442) mounted on the output shaft of the shaking motor (441), and a rocker arm (443) provided between the cam (442) and the shaking groove (42). One end of the rocker arm (443) is hinged to the cam (442), and the other end is hinged to the shaking groove (42).

9. The blanching machine unit according to claim 1, characterized in that: The air separator (3) includes an air separator body (31) and an air separator impurity removal feed inlet (32) located above the air separator body (31). A micro shaker (5) is fixedly installed at the air separator impurity removal feed inlet (32). The structure and principle of the micro shaker (5) are the same as those of the shaker (4).

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