Tea dryer

Abstract

The utility model relates to the technical field of drying machines, and discloses a tea leaf drying machine which comprises a drying oven, and the drying oven is sequentially provided with a tea leaf screening mechanism, a tea leaf drying mechanism and a tea leaf conveying mechanism from top to bottom. The tea screening mechanism comprises a mounting frame sliding in the drying oven, a screening barrel hinged to the mounting frame and right facing the feeding port, a partition plate rotationally connected into the screening barrel, a discharging motor driving the partition plate to rotate and a filter screen fixed to the screening barrel and located above the partition plate, a discharging port is formed in the bottom of the screening barrel, and a screening groove close to the filter screen is fixed in the drying oven; a screening motor is fixed to the mounting frame, a balance wheel is fixed to the output end of the screening motor, and a connecting rod is hinged between the balance wheel and the screening barrel. The tea leaf screening and filtering device has the advantages that tea leaves can be discharged completely after being screened and filtered, waste is reduced, the screened tea leaves are evenly spread on the conveying belt to be dried, and the drying quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying machines, in particular to a tea drying machine. Background Art

[0002] Tea is a common health drink. The tea production process varies according to the type of tea, but the tea making process generally includes four basic steps: picking, killing, rolling, and drying. Tea drying is mostly done with a dryer.

[0003] The Chinese patent with the authorization announcement number CN211953623U discloses a tea drying machine, including a tea screening device and a tea drying device, wherein the tea screening device includes a screening box, a tea inlet is provided at the top of the screening box, a screening mechanism is provided in the screening box, and the tea drying device includes a drying box, the inlet at the top of the drying box is connected to the tea outlet at the bottom of the screening box, a plurality of drying heaters are provided on the inner side of the drying box, and a stepped conveyor belt is provided in the drying box. The above device has the following disadvantages: the tea leaves fall into the screening hole plate through the tea inlet and the feeding space to be vibrated and screened, and since there is a height difference between the turning shaft and the guide plate, it is convenient to vibrate and screen the tea leaves, so when the turning shaft drives the screening hole plate to turn over, so that the tea leaves fall onto the conveyor belt through the discharge channel, the tea leaves on the screening hole plate close to the turning shaft are not easy to enter the discharge channel, so that the tea leaves are piled up and wasted, and the tea leaves that directly fall onto the conveyor belt through the discharge channel are also prone to pile up, so that the drying effect is not good. Utility Model Content

[0004] The utility model aims to provide a tea drying machine, which has the effect of making the tea leaves discharged completely after being screened and filtered, reducing waste, making the screened tea leaves evenly spread on a conveyor belt for drying, and improving the drying quality.

[0005] The above technical purpose of the utility model is achieved through the following technical scheme: comprising an oven, wherein the oven is sequentially provided with a tea screening mechanism, a tea drying mechanism and a tea conveying mechanism from top to bottom, a feed inlet is provided above the oven, the tea screening mechanism comprises a mounting frame sliding on the oven, a screening drum hinged on the mounting frame and facing the feed inlet, a partition rotatably connected to the screening drum, a discharging motor driving the partition to rotate, and a filter screen fixed to the screening drum and located above the partition, a discharging port is provided at the bottom of the screening drum, A screening trough close to the filter is fixed in the oven, a screening motor is fixed on the mounting frame, a balance wheel is fixed to the output end of the screening motor, a connecting rod is hinged between the balance wheel and the screening cylinder, the tea drying mechanism includes a multi-layer staggered drying conveyor belt that is transmitted in the oven and a heater that is fixed to the inner wall of the oven and is located on both sides of the drying conveyor belt, the tea conveying mechanism includes a material transfer conveyor belt arranged at the bottom of the oven, and the oven is equipped with a driving mechanism that drives the mounting frame to move along the conveying direction of the drying conveyor belt.

[0006] By adopting the above technical scheme, the partition is initially in an inclined state, and the tea leaves are loaded from the feed port into the screening drum and above the partition. The screening motor drives the pendulum to rotate and drives the screening drum to swing back and forth through the connecting rod, so that the tea residues in the tea leaves are screened out from the filter screen close to the partition and fall into the screening trough. The discharging motor drives the partition to rotate downward so that the inner cavity of the screening drum is connected to the discharging port. The screening motor continues to drive the screening drum to swing back and forth to shake the tea leaves out of the discharging port, and at the same time drives the motor to drive the mounting frame and the screening drum to move along the conveying direction of the drying conveyor belt, and the tea leaves in the screening drum are evenly spread onto the drying conveyor belt through the discharging port, avoiding the presence of tea residues in the screening drum and the clogging of the discharging port of the screening drum. Then the drying conveyor belt transports the tea leaves, and the multi-layer conveyor belt continuously transports the evenly spread tea leaves. The heaters located on both sides of the drying conveyor belt dry the tea leaves to improve the drying quality.

[0007] The utility model is further configured as follows: the driving mechanism comprises a driving cylinder fixed to the oven, an output end of the driving cylinder is fixed to the mounting frame, and a guide rail for the mounting frame to slide is fixed in the oven.

[0008] By adopting the above technical scheme, the driving cylinder drives the mounting frame and the screening drum to move back and forth along the guide rail, that is, the conveying direction of the drying conveyor belt, thereby improving the movement stability, and after the tea leaves in the screening drum are evenly spread onto the drying conveyor belt through the discharge port, the screening drum is driven back until the screening drum is located below the feed port, thereby improving the discharge efficiency.

[0009] The utility model is further configured as follows: a connecting cylinder located above the screening trough and communicating with the filter screen is fixed to the outer wall of the screening cylinder.

[0010] By adopting the above technical solution, the screening motor drives the pendulum to rotate, and drives the screening cylinder to swing back and forth through the connecting rod, so that the tea residue in the tea leaves is screened out from the filter screen close to the partition and falls into the screening trough through the connecting cylinder. The connecting cylinder is connected between the screening trough and the filter screen so that all the tea residue can fall into the screening trough.

[0011] The utility model is further configured as follows: the discharging motor is fixed outside the screening drum, a rotating shaft rotatably connected to the screening drum is fixed to the output end of the discharging motor, and the rotating shaft is fixed to the partition.

[0012] By adopting the above technical scheme, the discharging motor drives the partition to rotate relative to the screening drum by driving the rotating shaft, so that the partition is inclined during screening to guide the tea residue into the screening trough through the filter, or the partition is rotated to be in contact with the inner wall of the screening drum, so that the inner cavity of the screening drum is connected with the discharging port, and the tea leaves fall onto the drying conveyor belt.

[0013] The utility model is further configured as follows: the oven is fixed with a fixing frame, and the screening trough is inserted and slidably connected to the fixing frame.

[0014] By adopting the above technical solution, the screening trough can be pulled out from the fixed frame at any time to process the tea residues in the screening trough.

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

[0016] 1. Initially, the partition is tilted. Tea leaves are loaded from the feed port into the screening cylinder and above the partition. The screening motor drives the pendulum to rotate, and the screening cylinder is driven to swing back and forth through the connecting rod. The tea residue in the tea leaves is screened out from the filter screen near the partition and falls into the screening trough, so that the tea leaves are quickly filtered.

[0017] 2. The discharging motor drives the partition to rotate downward to connect the inner cavity of the screening drum with the discharging port. The screening motor continues to drive the screening drum to swing back and forth to shake the tea leaves out of the discharging port. At the same time, the driving motor drives the mounting frame and the screening drum to move along the conveying direction of the drying conveyor belt, and the tea leaves in the screening drum are evenly spread onto the drying conveyor belt through the discharging port, avoiding tea residue in the screening drum and clogging of the discharging port of the screening drum, thereby improving the drying quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a front view structural schematic diagram of this embodiment 1.

[0020] Figure 2 yes Figure 1 Enlarged view of point A.

[0021] Figure 3 It is a side view structural schematic diagram of this embodiment 1.

[0022] In the figure, 1. drying oven; 2. tea screening mechanism; 21. mounting frame; 22. screening cylinder; 23. partition; 24. discharging motor; 25. filter screen; 26. discharging port; 27. screening motor; 28. pendulum; 29. ​​connecting rod; 3. tea drying mechanism; 31. drying conveyor belt; 32. heater; 4. material transfer conveyor belt; 5. feeding port; 6. screening trough; 7. driving cylinder; 8. connecting cylinder; 9. fixing frame; 10. guide rail. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1, a tea drying machine, such as Figure 1-3 As shown, the oven 1 comprises a tea screening mechanism 2, a tea drying mechanism 3 and a tea conveying mechanism, which are arranged from top to bottom. A feed inlet 5 is arranged above the oven 1. The tea screening mechanism 2 comprises a mounting frame 21 sliding on the oven 1, a screening drum 22 hinged on the mounting frame 21 and facing the feed inlet 5, a partition 23 rotatably connected to the screening drum 22, a discharge motor 24 driving the partition 23 to rotate, and a filter screen 25 fixed to the screening drum 22 and located above the partition 23. A discharge inlet 26 is arranged at the bottom of the screening drum 22. A screening trough 6 is near the filter screen 25, and a screening motor 27 is fixed on the mounting frame 21. A balance wheel 28 is fixed to the output end of the screening motor 27. A connecting rod 29 is hinged between the balance wheel 28 and the screening cylinder 22. The tea drying mechanism 3 includes a multi-layer staggered drying conveyor belt 31 that is transmitted in the oven 1 and a heater 32 that is fixed to the inner wall of the oven 1 and is located on both sides of the drying conveyor belt 31. The tea conveying mechanism includes a material transfer conveyor belt 4 arranged at the bottom of the oven 1. The oven 1 is equipped with a driving mechanism that drives the mounting frame 21 to move along the conveying direction of the drying conveyor belt 31.

[0025] Furthermore, the driving mechanism includes a driving cylinder 7 fixed to the oven 1 , an output end of the driving cylinder 7 is fixed to a mounting frame 21 , and a guide rail 10 for the mounting frame 21 to slide is fixed in the oven 1 .

[0026] Furthermore, a connecting cylinder 8 connected to the filter screen 25 and located above the screening trough 6 is fixed on the outer wall of the screening cylinder 22 .

[0027] Furthermore, the discharging motor 24 is fixed outside the screening drum 22 , and a rotating shaft rotatably connected to the screening drum 22 is fixed to the output end of the discharging motor 24 , and the rotating shaft is fixed to the partition plate 23 .

[0028] Furthermore, a fixing frame 9 is fixed to the oven 1 , and the screening trough 6 is inserted and slidably connected to the fixing frame 9 .

[0029] The utility model works as follows: initially, the partition 23 is in an inclined state, and the tea leaves are loaded from the feed port 5 into the screening drum 22 and above the partition 23. The screening motor 27 drives the pendulum 28 to rotate, and drives the screening drum 22 to swing back and forth through the connecting rod 29, so that the tea residue in the tea leaves is screened out from the filter screen 25 near the partition 23 and falls into the screening trough 6. The discharging motor 24 drives the partition 23 to rotate downward so that the inner cavity of the screening drum 22 is connected to the discharging port 26. The screening motor 27 continues to drive the screening drum 22 to swing back and forth to shake the tea leaves out of the discharging port 26, and at the same time drives the cylinder 7 The mounting frame 21 and the screening drum 22 are driven to move along the guide rail 10, i.e., the conveying direction of the drying conveyor belt 31, and the tea leaves in the screening drum 22 are evenly spread onto the drying conveyor belt 31 through the discharge port 26, while avoiding tea leaves residue in the screening drum 22 and clogging of the discharge port 26 of the screening drum 22. Then, the drying conveyor belt 31 transports the tea leaves, and the multi-layer drying conveyor belts 31 continuously transport the evenly spread tea leaves, so that the heaters 32 located on both sides of the drying conveyor belts 31 dry the tea leaves. Finally, the drying conveyor belt 31 at the bottom layer transports the tea leaves to the material transfer conveyor belt 4 for transport.

Claims

1. A tea drying machine, comprising a drying oven (1), characterized in that: The oven (1) is provided with a tea screening mechanism (2), a tea drying mechanism (3) and a tea conveying mechanism from top to bottom. A feed inlet (5) is provided above the oven (1). The tea screening mechanism (2) comprises a mounting frame (21) sliding on the oven (1), a screening drum (22) hinged to the mounting frame (21) and facing the feed inlet (5), a partition (23) rotatably connected to the screening drum (22), a discharge motor (24) driving the partition (23) to rotate, and a filter screen (25) fixed to the screening drum (22) and located above the partition (23). A discharge inlet (26) is provided at the bottom of the screening drum (22). A filter screen (25) close to the filter screen (23) is fixed in the oven (1). 25), a screening trough (6) of the drying oven (1), a screening motor (27) being fixed on the mounting frame (21), a pendulum wheel (28) being fixed on the output end of the screening motor (27), a connecting rod (29) being hinged between the pendulum wheel (28) and the screening cylinder (22), the tea drying mechanism (3) comprising a plurality of staggered drying conveyor belts (31) which are driven in the drying oven (1) and a heater (32) which is fixed to the inner wall of the drying oven (1) and is located on both sides of the drying conveyor belt (31), the tea conveying mechanism comprising a material transfer conveyor belt (4) which is arranged at the bottom of the drying oven (1), and the drying oven (1) is provided with a driving mechanism for driving the mounting frame (21) to move along the conveying direction of the drying conveyor belt (31).

2. A tea drying machine according to claim 1, characterized in that: The driving mechanism comprises a driving cylinder (7) fixed to the oven (1), the output end of the driving cylinder (7) being fixed to the mounting frame (21), and a guide rail (10) for the mounting frame (21) to slide is fixed inside the oven (1).

3. A tea drying machine according to claim 1, characterized in that: A connecting cylinder (8) located above the screening trough (6) and communicating with the filter screen (25) is fixed to the outer wall of the screening cylinder (22).

4. A tea drying machine according to claim 1, characterized in that: The discharge motor (24) is fixed outside the screening drum (22), and a rotating shaft rotatably connected to the screening drum (22) is fixed to the output end of the discharge motor (24), and the rotating shaft is fixed to the partition plate (23).

5. A tea drying machine according to claim 1, characterized in that: The oven (1) is fixed with a fixed frame (9), and the screening trough (6) is inserted and slidably connected to the fixed frame (9).

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