Automatic tea drying equipment

Abstract

The utility model relates to the technical field of tea leaf processing, in particular to automatic tea leaf drying equipment which comprises a drying box, a plurality of layers of conveying net belts arranged in the drying box, a feeding port formed in the upper portion of one side of the drying box, a conveying chain plate inclining upwards arranged at the feeding port and a paving mechanism arranged above the conveying chain plate. Adjusting mechanisms are arranged on the front side wall and the rear side wall of the shell. An air heater is arranged on the other side wall of the drying box, a hot air cavity is formed in one side in the drying box, an air outlet of the air heater is connected with the hot air cavity, ventilation holes are formed in the hot air cavity, and a discharging port is formed in the lower end of the side wall, opposite to the feeding port, of the drying box. The device has the advantages of being high in drying efficiency, adjustable in paving thickness and high in equipment adaptability.

Description

Technical Field

[0001] This utility model relates to the field of tea processing technology, and in particular to an automatic tea drying device. Background Technology

[0002] Traditional tea drying methods typically rely on natural sun-drying or simple drying equipment, which have several shortcomings. First, natural sun-drying is highly susceptible to weather conditions, inefficient, and difficult to control in terms of drying time and temperature, leading to inconsistent product quality. Second, while simple drying equipment can improve production efficiency to some extent, its basic design makes it impossible to achieve even spreading and circulating drying of the tea leaves, easily resulting in localized over-drying or incomplete drying, thus affecting the tea's color, aroma, and taste. Furthermore, traditional equipment lacks effective ventilation and dehumidification measures; if the water vapor generated during the drying process cannot be removed in time, it can cause the tea to mold and spoil, severely impacting the quality of the finished tea. Utility Model Content

[0003] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0004] Design an automatic tea drying device, including a drying box, in which multiple conveyor belts are provided. A feed inlet is provided on one side of the drying box above one end of the uppermost conveyor belt. An upwardly inclined conveyor chain plate is provided at the feed inlet, and the tail end of the conveyor chain plate extends above the uppermost conveyor belt. Both ends of the conveyor chain plate are driven by sprockets, and the sprockets are rotatably mounted on the housing via axles. A spreading mechanism is provided above the conveyor chain plate, and an adjustment mechanism is provided on the front and rear side walls of the housing. The spreading mechanism is mounted on the adjustment mechanism.

[0005] A hot air blower is provided on the other side wall of the drying oven. A hot air chamber is provided on the side of the drying oven near the hot air blower. The air outlet of the hot air blower is connected to the hot air chamber. The bottom of the hot air chamber extends to the top of the last conveyor belt. Ventilation holes are provided on the side walls of the hot air chamber and each conveyor belt. An outlet is provided at the lower end of the side wall of the drying oven opposite to the feed inlet.

[0006] Preferably, the multi-layered conveyor belts are arranged in parallel vertically and staggered end to end, and their transmission direction is S-shaped.

[0007] Preferably, the paving mechanism includes a rotating shaft rotatably disposed within the housing, a roller sleeved on the rotating shaft, and paving teeth arranged in a circumferential array along the length of the roller. A drive motor is provided on one side of the housing, and the output shaft of the drive motor is coaxially disposed with the rotating shaft.

[0008] Preferably, the adjustment mechanism includes adjustment holes on the front and rear side walls of the housing, with the front and rear ends of the rotating shaft extending rotatably into the adjustment holes, and the rotating shaft capable of moving up and down along the adjustment holes. A slide rail is provided on the front side wall of the housing, and the drive motor is slidably mounted in the slide rail. A rotary bearing is fitted on the rear end of the rotating shaft. A fixed pulley is provided directly above each adjustment hole, and a winding roller is provided below one side of each adjustment hole. A cable is wound on the winding roller, and the fixed end of the cable is fixed to the winding roller. The free end of the cable on the front side of the housing passes through the corresponding fixed pulley and is connected to the drive motor, while the free end of the cable on the rear side of the housing passes through the corresponding fixed pulley and is connected to the rotary bearing. A rotating disk is connected to the roller shaft of the winding roller, and a crank is connected to the rotating disk. Locking components for locking the crank are provided on the front and rear sides of the housing.

[0009] Preferably, the locking assembly includes locking holes arranged in a circumferential array on the outer circumferential surface of the turntable, mounting plates fixed on the housing below the corresponding winding shaft, a locking rod that mates with the locking holes passing through the mounting plate, one end of the locking rod passing through the corresponding locking hole, the other end extending to the bottom of the mounting plate and connected to a pull handle, a limit plate fixed at the upper end of the locking rod, and a return spring sleeved on the locking rod between the limit plate and the mounting plate.

[0010] Preferably, a bolt hole is provided on one side of the slide rail, and a tightening bolt is provided in the corresponding bolt hole.

[0011] Preferably, the bottom of the drying chamber is provided with an inclined guide plate extending to the discharge port.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the design of a multi-layer conveyor belt and an S-shaped transmission path, enables tea leaves to circulate and dry fully within the drying chamber, ensuring uniform heating of the tea leaves and improving drying efficiency and the quality of the finished tea.

[0014] 2. This utility model adopts a spreading mechanism and an adjusting mechanism, which not only achieves uniform spreading of tea leaves, but also allows for flexible adjustment of the spreading thickness according to different tea varieties and drying requirements, thereby enhancing the applicability and flexibility of the equipment.

[0015] 3. The efficient hot air blower and ventilation hole design provide an ample supply of hot air, ensuring that the tea leaves are heated evenly during the drying process; the exhaust vent at the top effectively removes water vapor, preventing the tea leaves from becoming moldy and spoiled due to moisture accumulation, and improving the color and taste of the tea leaves.

[0016] 4. The design of the locking components and tightening bolts simplifies the height adjustment and position locking process of the paving mechanism, reduces operational difficulty, and improves work efficiency. At the same time, the overall structure of the equipment is compact and easy to maintain, reducing daily operating costs. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the adjustment structure;

[0019] Figure 3 This is a side view of the shell structure.

[0020] Figure 4 yes Figure 2 Enlarged structural diagram at point A in the diagram;

[0021] Figure 5 yes Figure 3 Enlarged structural diagram at point B in the diagram;

[0022] The following components are labeled in the diagram: 1. Housing, 2. Conveyor chain plate, 3. Adjustment hole, 4. Rotary shaft, 5. Spreading teeth, 6. Roller, 7. Feed inlet, 8. Drying box, 9. Conveyor belt, 10. Exhaust port, 11. Hot air chamber, 12. Ventilation hole, 13. Hot air blower, 14. Discharge port, 15. Guide plate, 16. Cable, 17. Fixed pulley, 18. Winding roller, 19. Slide rail, 20. Drive motor, 21. Bolt hole, 22. Bolt, 23. Turntable, 24. Locking hole, 25. Handle, 26. Mounting plate, 27. Pull handle, 28. Locking rod, 29. Return spring, 30. Limit plate. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] Example 1

[0025] An automatic tea drying device, such as Figures 1 to 5As shown, the equipment includes a drying chamber 8, with an exhaust port 10 at the top to discharge water vapor generated during heating, preventing water vapor accumulation from affecting the drying effect. Multiple conveyor belts 9 are installed inside the drying chamber 8, arranged parallel vertically and staggered end-to-end, with an S-shaped transport direction to facilitate the circulation and drying of tea leaves within the drying chamber 8. A feed inlet 7 is provided on one side of the drying box 8, above one end of the uppermost conveyor belt 9. An upwardly inclined conveyor chain plate 2 is provided at the feed inlet 7. When the conveyor chain plate 2 conveys tea leaves to the feed inlet 7, it conveys them from a low position to a high position. The tail end of the conveyor chain plate 2 extends above the uppermost conveyor belt 9. Both ends of the conveyor chain plate 2 are driven by sprockets, and the sprockets are respectively mounted on the housing 1 via axles. A spreading mechanism is provided above the conveyor chain plate 2. An adjustment mechanism is provided on the front and rear side walls of the housing 1. The spreading mechanism is located on the adjustment mechanism. The spreading mechanism includes a rotating shaft 4 rotatably installed inside the housing 1, a roller 6 sleeved on the rotating shaft 4, and spreading teeth 5 arranged in a circumferential array along the length of the roller 6. A drive motor 20 is provided on one side of the housing 1. The output shaft of the drive motor 20 is coaxially arranged with the rotating shaft 4, driving the spreading mechanism to rotate and spreading the tea leaves evenly on the conveyor belt 9.

[0026] The adjustment mechanism includes adjustment holes 3 on the front and rear side walls of the housing 1. The front and rear ends of a rotating shaft 4 extend rotatably into the adjustment holes 3, and the rotating shaft 4 can move up and down along the adjustment holes 3. A slide rail 19 is provided on the front side wall of the housing 1, and a drive motor 20 is slidably mounted within the slide rail 19. A rotating bearing is fitted at the rear end of the rotating shaft 4. A fixed pulley 17 is provided directly above each adjustment hole 3. A winding roller 18 is provided below one side of each adjustment hole 3, and a cable 16 is wound on the winding roller 18. The fixed end of the cable 16 is fixed to the winding roller 18. The cable 16 on the front side of the housing 1... The cable 16 at the rear of the housing 1 passes through the corresponding fixed pulley 17 and is connected to the drive motor 20. The free end of the cable 16 at the rear of the housing 1 passes through the corresponding fixed pulley 17 and is connected to the rotating bearing. A rotating disk is connected to the roller shaft of the winding roller 18, and a crank 25 is connected to the rotating disk. By turning the crank 25, the paving mechanism can be driven to move up and down in the adjustment hole 3. Adjusting the paving mechanism by the winding roller 18 and the fixed pulley 17 is more labor-saving. After the adjustment is completed, the locking rod 28 is locked in the locking hole 24, thereby locking the crank 25 so that it no longer rotates, thus positioning the paving mechanism.

[0027] Locking assemblies for locking handles 25 are provided on the front and rear sides of the housing 1. Each locking assembly includes locking holes 24 arranged in a circular array on the outer circumferential surface of the turntable 23. Mounting plates 26 are fixed to the housing 1 below the corresponding winding shaft. A locking rod 28, cooperating with the locking holes 24, passes through the mounting plate 26. One end of the locking rod 28 passes through the corresponding locking hole 24, and the other end extends below the mounting plate 26 and is connected to a pull handle 27. A limiting plate 30 is fixed to the upper end of the locking rod 28, and a return spring 29 is sleeved on the locking rod 28 between the limiting plate 30 and the mounting plate 26. By pulling down the locking rod 28, the upper end of the locking rod 28 disengages from the locking hole 24, compressing the return spring 29. This releases the restriction on the turntable 23 and the handle 25, allowing the winding roller 18 to rotate and adjust the height of the spreading mechanism to meet the spreading thickness requirements for drying different types of tea. When the locking lever 28 is released, the return spring 29 returns to its original position, and the upper end of the locking lever 28 is engaged in the corresponding locking hole 24, thereby locking the turntable 23 and the crank handle 25 to prevent the winding roller 18 from rotating, and thus locking the position of the paving mechanism.

[0028] To further lock the position of the paving mechanism, a bolt hole 22 is provided on one side of the slide rail 19, and a tightening bolt 22 is provided in the corresponding bolt hole 22.

[0029] A hot air blower 13 is provided on the other side wall of the drying chamber 8. A hot air chamber 11 is provided inside the drying chamber 8 near the hot air blower 13. The air outlet of the hot air blower 13 is connected to the hot air chamber 11. The bottom of the hot air chamber 11 extends above the last conveyor belt 9. Ventilation holes 12 are respectively opened on the side walls of the hot air chamber 11 and each conveyor belt 9. A discharge port 14 is opened at the lower end of the side wall of the drying chamber 8 opposite to the feed inlet 7. To facilitate discharge, an inclined guide plate 15 is provided at the bottom of the drying chamber 8, extending to the discharge port 14.

[0030] In use, tea leaves are poured from above the housing 1 onto the conveyor chain plate 2 at the front end of the spreading mechanism. The height of the spreading mechanism is adjusted according to the type of tea leaves. The tea leaves are then conveyed to the uppermost conveyor belt 9 at the feed inlet 7. The tea leaves are conveyed and dried on the multi-layer conveyor belts 9. The hot air blower 13 is turned on to allow hot air to enter the hot air chamber 11. The hot air flow then enters each layer of conveyor belts 9 through the ventilation holes 12. The water vapor generated during the drying process is discharged through the exhaust port 10. After drying, the tea leaves fall from the last layer of conveyor belts 9 and are discharged from the discharge port 14 for collection.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic tea drying device, characterized in that, The device includes a drying chamber containing multiple conveyor belts. A feed inlet is located above one end of the top conveyor belt on one side of the drying chamber. An upwardly inclined conveyor chain plate is located at the feed inlet, with its tail end extending above the top conveyor belt. Both ends of the conveyor chain plate are driven by sprockets, and the sprockets are rotatably mounted on the housing via axles. A spreading mechanism is located above the conveyor chain plate, and an adjustment mechanism is located on the front and rear side walls of the housing. The spreading mechanism is mounted on the adjustment mechanism. A hot air blower is provided on the other side wall of the drying oven. A hot air chamber is provided on the side of the drying oven near the hot air blower. The air outlet of the hot air blower is connected to the hot air chamber. The bottom of the hot air chamber extends to the top of the last conveyor belt. Ventilation holes are provided on the side walls of the hot air chamber and each conveyor belt. An outlet is provided at the lower end of the side wall of the drying oven opposite to the feed inlet.

2. The automatic tea drying equipment as described in claim 1, characterized in that: The multi-layered conveyor belts are arranged in parallel vertically and staggered end to end, and their transmission direction is S-shaped.

3. The automatic tea drying equipment as described in claim 1, characterized in that: The paving mechanism includes a rotating shaft housed within a housing, a roller mounted on the rotating shaft, and paving teeth arranged in a circumferential array along the length of the roller. A drive motor is provided on one side of the housing, and the output shaft of the drive motor is coaxially arranged with the rotating shaft.

4. The automatic tea drying equipment as described in claim 3, characterized in that: The adjustment mechanism includes adjustment holes on the front and rear side walls of the housing. The front and rear ends of the rotating shaft extend rotatably into the adjustment holes, and the rotating shaft can move up and down along the adjustment holes. A slide rail is provided on the front side wall of the housing, and the drive motor is slidably mounted in the slide rail. A rotary bearing is sleeved on the rear end of the rotating shaft. A fixed pulley is provided directly above each adjustment hole. A winding roller is provided below one side of each adjustment hole. A cable is wound on the winding roller. The fixed end of the cable is fixed to the winding roller. The free end of the cable on the front side of the housing passes through the corresponding fixed pulley and is connected to the drive motor. The free end of the cable on the rear side of the housing passes through the corresponding fixed pulley and is connected to the rotary bearing. A rotating disk is connected to the roller shaft of the winding roller, and a crank is connected to the rotating disk. Locking components for locking the crank are provided on the front and rear sides of the housing.

5. The automatic tea drying equipment as described in claim 4, characterized in that: The locking assembly includes locking holes arranged in a circular array on the outer circumference of the turntable. Mounting plates are fixed on the housing below the corresponding winding shaft. A locking rod that mates with the locking holes is passed through the mounting plate. One end of the locking rod passes through the corresponding locking hole, and the other end extends to the bottom of the mounting plate and is connected to a pull handle. A limit plate is fixed at the upper end of the locking rod, and a return spring is sleeved on the locking rod between the limit plate and the mounting plate.

6. The automatic tea drying equipment as described in claim 4, characterized in that: A bolt hole is provided on one side of the slide rail, and a tightening bolt is provided in the corresponding bolt hole.

7. The automatic tea drying equipment as described in claim 1, characterized in that: The bottom of the drying chamber is provided with an inclined guide plate that extends to the discharge port.

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