A tea withering machine and its usage method

Abstract

The present invention relates to the technical field of tea fixation machines, and provides a tea fixation machine and a using method thereof, including: two hollow support rings, a fixation cylinder is rotatably arranged between the two hollow support rings, a slag receiving frame is arranged on the outer wall of the support frame located below the fixation cylinder, and impurities in the tea can pass through the fixation cylinder and fall into the slag receiving frame for collection. Through the air heating device and the blowing and suction mechanism, the evaporated water vapor can be absorbed and dried, and the fixation cylinder can be heated by the heated air to fix the tea. The tea piles agglomerated into groups are blown and scattered and then fall, improving the fixation efficiency of the tea. A feeding assembly is arranged at the port of one of the hollow support rings, a driving mechanism is arranged between the fixation cylinder and the support frame, and a feeding mechanism is arranged at the port of the other hollow support ring, realizing that while the fixation cylinder of the fixation machine rolls for fixation, it can automatically perform relatively quantitative feeding and discharging operations, with a high degree of automation.

Description

Technical Field

[0001] The present invention relates to the technical field of tea withering machines, and specifically, to a tea withering machine and a method for using the same. Background Art

[0002] Tea withering is to take high-temperature measures. After the tea is withered and dried, a part of the moisture is evaporated, making the tea aroma pure, and better maintaining the natural stretching of the tea. It can achieve the destruction of the enzyme activity of the fresh leaves, the emission of moisture, the passivation of the enzyme activity, and certain chemical changes in the internal substances in the fresh leaves, so as to form the quality characteristics of green tea. Tea withering mostly uses withering machines. Among them, the drum withering machine can meet the basic conditions and requirements of tea withering. During the rotation of the drum, the multiple spiral guide vanes arranged on the inner wall can automatically convey the tea.

[0003] However, in the actual use process of the existing tea withering machines, there are still certain deficiencies:

[0004] During the process of the drum turning and conveying the tea, the accumulation of tea is easy to cause caking, which affects the withering work of the tea, reduces the withering efficiency and the withering uniformity;

[0005] For the tea undergoing withering treatment inside the drum, some particulate impurities and foreign matters remaining inside the tea cannot be screened out in time, which affects the quality of the tea;

[0006] When the tea is withered in the drum, some water vapor generated during the drying process is difficult to remove in time, and it is easy to re-condense and mix with the tumbling tea, affecting the withering effect;

[0007] The existing drum withering machines have a low degree of automation and cannot realize the automatic and quantitative feeding and discharging of tea while the drum rotates to turn and convey the tea.

[0008] In view of this, the present invention proposes a tea withering machine and a method for using the same. Summary of the Invention

[0009] The present invention proposes a tea withering machine and a method for using the same, which solves the problems of the withering efficiency and withering uniformity of the existing drum withering machines in the related art, and cannot realize the automatic and quantitative feeding and discharging of tea while the drum rotates to turn and convey the tea.

[0010] The technical solution of the present invention is as follows: A tea withering machine, comprising: a support frame, at the upper end of the support frame, two hollow support rings are symmetrically and fixedly connected, between the two hollow support rings, a withering cylinder is rotatably arranged, the withering cylinder includes an inner cylinder and an outer cylinder arranged outside the inner cylinder, between the outer cylinder and the inner cylinder, communicating pipes are evenly distributed, both ends of the communicating pipe penetrate through the outer wall of the outer cylinder and the inner wall of the inner cylinder respectively, on the inner wall of the inner cylinder, a plurality of spiral guide vanes are annularly arranged, on the outer wall of the end of the outer cylinder, a limiting ring is fixedly sleeved, the limiting ring is slidably sleeved inside the hollow support ring, and a sandwich layer communicating with the internal space of the hollow support ring is formed between the inner cylinder and the outer cylinder;

[0011] An air heating device is arranged outside the withering cylinder, and a blowing and suction mechanism is arranged between the air heating device and the withering cylinder, which is used to pump the air inside the inner cylinder to the air heating device for heating and then transport it to the sandwich layer formed between the inner cylinder and the outer cylinder, and finally transport it back to the inside of the inner cylinder;

[0012] At the port of one of the hollow support rings, a feeding component is arranged, and a driving mechanism is arranged between the withering cylinder and the support frame, which is used to rotate the withering cylinder between the two hollow support rings and perform local vibration on the feeding component;

[0013] At the port of the other hollow support ring, a feeding mechanism is arranged, and a transmission mechanism is arranged between the feeding mechanism and the hollow support ring. During the rotation of the withering cylinder, the feeding mechanism can be driven through the transmission mechanism.

[0014] Preferably, the blowing and suction mechanism includes a blowing frame and a suction frame attached to the outer wall of the outer cylinder, between the suction frame and the blowing frame, two arc-shaped connecting plates are fixedly connected, the air heating device is fixedly connected to the upper end of one of the arc-shaped connecting plates, on the outer wall of the suction frame, an induced draft fan is fixedly connected, between the suction port of the induced draft fan and the suction frame, a suction pipe is fixedly connected, between the air outlet of the induced draft fan and the air heating device, a pipeline is fixedly connected, and between the air heating device and one of the hollow support rings, a conveying pipe is fixedly connected.

[0015] Preferably, the blowing and suction mechanism includes a vertical plate fixedly connected between the blowing frame and the support frame for supporting the blowing frame, on the outer wall of the blowing frame, a blowing pipe communicating with the inside of the blowing frame is fixedly connected, the other end of the blowing pipe is fixedly connected to a Tesla valve pipe, and between the Tesla valve pipe and the hollow support ring, an elbow pipe is fixedly connected.

[0016] Preferably, the unloading assembly includes a unloading frame fixedly connected to the end of a hollow supporting ring and an inclined supporting plate slidably arranged at the bottom of the unloading frame, a sliding groove for sliding the inclined supporting plate is provided inside the outer wall of the hollow supporting ring, an axle rod is fixed inside the sliding groove, the axle rod slides through the interior of the inclined supporting plate, a connecting spring is sleeved on the outer side of the axle rod, and both ends of the connecting spring are respectively fixedly connected to the side wall of the inclined supporting plate and the end of the sliding groove.

[0017] Preferably, the driving mechanism includes a driving motor fixedly mounted on the supporting frame, a driving gear is fixedly connected to the end of the output shaft of the driving motor, a gear ring meshing with the driving gear is fixedly sleeved on the outer wall of the withering cylinder, a driving shaft is fixedly connected to the outer wall of the driving gear, a fixed block is fixedly connected to the outer wall of the hollow supporting ring, the driving shaft rotates through the fixed block, one end of the driving shaft is eccentrically fixed to a fixed shaft, a connecting rod is rotatably connected to the fixed shaft, and the other end of the connecting rod is hinged to the inclined support plate.

[0018] Preferably, the feeding mechanism includes a material guide frame extending to the inner side of the hollow support ring, support rods for supporting the material guide frame are symmetrically fixed on both sides of the material guide frame, a first material feeding component is arranged at an inclined position on one side of the material guide frame, the first material feeding component includes two first side plates arranged in parallel, two first rollers are rotatably connected between the two first side plates, a first conveyor belt is arranged on a transmission sleeve between the two first rollers, and a plurality of material receiving frames are evenly distributed on the outer wall of the first conveyor belt.

[0019] Preferably, a second feeding component is provided on one side of the first feeding component, the second feeding component comprises two second side plates arranged in parallel, two second rollers are rotatably connected between the two second side plates, and a second conveyor belt is provided on a transmission sleeve between the two second rollers;

[0020] A hopper is fixedly connected to the upper ends of the two second side plates, a support frame for supporting the second loading component is fixedly connected to the outer walls of the two second side plates, and a support plate for supporting the first side plate is fixedly connected to the outer wall of the first side plate.

[0021] Preferably, the transmission mechanism comprises a connecting seat fixedly connected to the outer wall of the hollow supporting ring, a rotating rod is rotatably sleeved inside the connecting seat, one end of the rotating rod is fixedly connected to a transmission gear, a plurality of transmission gear blocks matched with the transmission gear are fixedly connected to the outer wall of the outer cylinder, a first coupling shaft is fixedly connected to the end of the first rotating roller located on the upper side, one end of the first coupling shaft and one end of the rotating rod are fixedly connected to a bevel gear, and the two bevel gears are meshed with each other;

[0022] One end of the second rotating roller is fixedly connected with a second coupling shaft. A pulley is fixedly sleeved on the outer wall of the second coupling shaft and the outer wall of the first coupling shaft. A transmission belt is connected between the two pulleys in a transmission manner.

[0023] Preferably, a slag receiving frame is arranged on the outer wall of the support frame located below the green tea killing cylinder.

[0024] A method for green tea killing, using the above-mentioned green tea killing machine, includes the following steps:

[0025] S1. Store the tea leaves to be green tea killed in the hopper. The tea leaves at the bottom fall to the upper end of the second conveyor belt. When the power is turned on and the driving motor is started, the output shaft of the driving motor drives the driving gear to rotate. The driving gear drives the green tea killing cylinder to rotate between the two hollow supporting rings through the toothed ring. Every time the green tea killing cylinder rotates one week, it can drive the transmission gear once through the transmission tooth block, so that the transmission gear rotates intermittently at a certain angle.

[0026] S2. During the rotation of the transmission gear, it can drive the rotating rod to rotate. Under the action of the two bevel gears, it can drive the first coupling shaft to rotate. Under the action of the transmission belt and the two pulleys, it can drive the second coupling shaft to rotate, so as to drive the second conveyor belt and the first conveyor belt to transmit. The second conveyor belt conveys the tea leaves falling from the lower port of the hopper to the receiving frame arranged on the first conveyor belt. Then, the transmission of the first conveyor belt will move the position of the receiving frame upward until the receiving frame flips to the other side of the first conveyor belt. The tea leaves inside the receiving frame will fall into the guiding frame under the action of gravity and centrifugal force, and are conveyed to the inside of the green tea killing cylinder through the guiding frame.

[0027] S3. When the green tea killing cylinder rotates between the two hollow supporting rings, the spiral guide vane on the inner wall of the inner cylinder can tumble the tea leaves. The inclined spiral guide vane can guide the tea leaves while tumbling them, and continuously convey them closer to the other port.

[0028] S4. When the tea leaves are tumbling and conveying inside the green tea killing cylinder, the outer cylinder slides in contact with the blowing frame and the suction frame. Start the induced draft fan. The induced draft fan sucks the inside of the suction frame through the suction pipe, so that the suction frame can suck the inner side of the inner cylinder through a row of communicating pipes connected with the suction frame. When the tea leaves are being green tea killed inside the green tea killing cylinder, the water vapor evaporated can be absorbed and sent to the air heating device for drying. The air dried by the air heating device is then conveyed to the inside of the hollow supporting ring through the conveying pipe, and then conveyed to the interlayer between the outer cylinder and the inner cylinder, so that the temperature of the inner wall of the inner cylinder rises, so as to be able to carry out the green tea killing work on the tea leaves in the inner cylinder.

[0029] S5. When the air pressure in the interlayer between the outer cylinder and the inner cylinder gradually increases, air will be transported through another hollow support ring to the inside of the elbow pipe. After being accelerated by the Tesla valve pipe, it will be transported to the air blowing frame through the air blowing pipe, so that the hot air in the air blowing frame can blow into the inside of the inner cylinder through a row of connecting pipes connected to the air blowing frame. The hot air blown into the inside of the inner cylinder can both air-dry and kill the green of the tea leaves, and can also disperse and let fall the tea leaves piled up in a mass, improving the efficiency of killing the green of the tea leaves;

[0030] S6. When the tea leaves are transported from one end of the killing-green cylinder to the other end and fall onto the inclined support plate, since the rotation of the driving gear will also drive the driving shaft to rotate, the driving shaft drives the fixed shaft to rotate. The fixed shaft pushes and pulls the connecting rod, so that the inclined support plate can reciprocate inside the sliding groove, causing the inclined support plate to move back and forth at the bottom end of the blanking frame, so that the tea leaves falling on the inclined support plate can be vibrated and discharged.

[0031] The working principle and beneficial effects of the present invention are as follows:

[0032] In the present invention, two hollow support rings are symmetrically and fixedly connected to the upper end of the support frame. A killing-green cylinder is rotatably arranged between the two hollow support rings. A slag receiving frame is arranged on the outer wall of the support frame below the killing-green cylinder. During the process of the killing-green cylinder tumbling and killing the green of the tea leaves, the impurities in the tea leaves can pass through the killing-green cylinder and fall into the slag receiving frame for collection. An air heating device is arranged outside the killing-green cylinder, and a blowing and suction mechanism is arranged between the air heating device and the killing-green cylinder. Through the blowing and suction mechanism, the water vapor evaporated during the killing-green work can be absorbed into the air heating device for drying. The air dried by the air heating device is then transported to the inside of the hollow support ring through the delivery pipe, and then transported to the interlayer between the outer cylinder and the inner cylinder, so that the temperature of the inner wall of the inner cylinder rises, and thus the tea leaves in the inner cylinder can be killed. When the air pressure in the interlayer between the outer cylinder and the inner cylinder gradually increases, air will be transported through another hollow support ring to the inside of the elbow pipe. After being accelerated by the Tesla valve pipe, it will be transported to the air blowing frame through the air blowing pipe, so that the hot air in the air blowing frame can blow into the inside of the inner cylinder through a row of connecting pipes connected to the air blowing frame. The hot air blown into the inside of the inner cylinder can both air-dry and kill the green of the tea leaves, and can also disperse and let fall the tea leaves piled up in a mass, improving the efficiency of killing the green of the tea leaves, and has high use value;

[0033] In the present invention, a blanking assembly is provided at one of the ports of the hollow support ring, a driving mechanism is provided between the tea-killing cylinder and the support frame, a feeding mechanism is provided at the port of the other hollow support ring, and a transmission mechanism is provided between the feeding mechanism and the hollow support ring. The driving mechanism can drive the tea-killing cylinder to rotate between the two hollow support rings. At the same time, the hollow support ring can drive the inclined support plate on the blanking assembly to move back and forth at the bottom of the blanking frame, so that the tea leaves falling on the inclined support plate can be vibrated and discharged. In addition, every time the tea-killing cylinder rotates one week, the transmission gear block can drive the transmission gear once, so that the transmission gear rotates intermittently at a certain angle. Under the action of the transmission mechanism, the second conveyor belt and the first conveyor belt are driven. The second conveyor belt conveys the tea leaves falling from the lower port of the hopper to the receiving frame arranged on the first conveyor belt. Then, the transmission of the first conveyor belt will move the position of the receiving frame upward until the receiving frame flips to the other side of the first conveyor belt. The tea leaves inside the receiving frame will fall into the guiding frame under the action of gravity and centrifugal force, and are conveyed to the inside of the tea-killing cylinder through the guiding frame, realizing that while the tea-killing machine drum is rolling and killing tea, it can automatically carry out relatively quantitative feeding and discharging work, with high automation degree, bringing significant progress to the tea-killing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0035] Figure 1 is a three-dimensional structure schematic diagram of a tea-killing machine proposed by the present invention;

[0036] Figure 2 is a schematic diagram of the structural composition of the feeding mechanism proposed by the present invention;

[0037] Figure 3 is a schematic diagram of the structural composition of the driving mechanism proposed by the present invention;

[0038] Figure 4 is Figure 3 an enlarged schematic diagram of part A in

[0039] Figure 5 is Figure 4 an enlarged schematic diagram of part B in

[0040] Figure 6 is a schematic diagram of the assembly of the blowing and sucking mechanism and the tea-killing cylinder proposed by the present invention;

[0041] Figure 7 is a three-dimensional structure schematic diagram of the tea-killing cylinder proposed by the present invention;

[0042] Figure 8 is Figure 6 an enlarged schematic diagram of part C in

[0043] Figure 9 Schematic diagram of the internal structure of the Tesla valve tube proposed by the present invention;

[0044] Figure 10 Schematic diagram of the partial sectional structure of the blowing frame proposed by the present invention;

[0045] Figure 11 Schematic diagram of the partial sectional structure of the suction frame proposed by the present invention;

[0046] In the figure:

[0047] 1. Driving mechanism; 11. Tooth ring; 12. Driving motor; 13. Driving gear; 14. Driving shaft; 15. Fixed block; 16. Connecting rod; 17. Fixed shaft;

[0048] 2. Support frame; 21. Scrap receiving frame;

[0049] 3. Feeding component; 31. Feeding frame; 32. Inclined support plate; 33. Chute; 34. Connecting spring; 35. Shaft rod;

[0050] 4. Hollow support ring;

[0051] 5. Fixing cylinder; 51. Outer cylinder; 52. Limit ring; 53. Inner cylinder; 54. Spiral guide vane plate; 55. Connecting pipe;

[0052] 6. Blowing and suction mechanism; 61. Delivery pipe; 62. Arc-shaped connecting plate; 63. Induced draft fan; 64. Suction pipe; 65. Suction frame; 66. Elbow pipe; 67. Tesla valve tube; 68. Blowing pipe; 69. Blowing frame; 691. Vertical plate;

[0053] 7. Air heating device;

[0054] 8. Feeding mechanism; 81. First feeding component; 811. First side plate; 812. First roller; 813. Material receiving frame; 814. First conveyor belt; 82. Second feeding component; 821. Second side plate; 822. Second conveyor belt; 823. Second roller; 83. Guide frame; 84. Support rod; 85. Support plate; 86. Support frame; 87. Hopper;

[0055] 9. Transmission mechanism; 91. Transmission gear; 92. Transmission tooth block; 93. Rotating rod; 94. Bevel gear; 95. First coupling; 96. Transmission belt; 97. Pulley; 98. Second coupling; 99. Connecting seat. Detailed implementation method

[0056] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention. Embodiment

[0057] Please refer to Figure 1 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11 , a tea withering machine and its use method, including: a support frame 2, two hollow support rings 4 are symmetrically and fixedly connected to the upper end of the support frame 2, a withering cylinder 5 is rotatably arranged between the two hollow support rings 4, the withering cylinder 5 includes an inner cylinder 53 and an outer cylinder 51 arranged outside the inner cylinder 53, a plurality of communicating pipes 55 are evenly distributed between the outer cylinder 51 and the inner cylinder 53, both ends of the communicating pipes 55 respectively penetrate through the outer wall of the outer cylinder 51 and the inner wall of the inner cylinder 53, a plurality of spiral guide vanes 54 are annularly arranged on the inner wall of the inner cylinder 53, a limiting ring 52 is fixedly sleeved on the outer wall of the end of the outer cylinder 51, the limiting ring 52 is slidably sleeved inside the hollow support ring 4, and a sandwich layer communicating with the internal space of the hollow support ring 4 is formed between the inner cylinder 53 and the outer cylinder 51. A slag receiving frame 21 is arranged on the outer wall of the support frame 2 below the withering cylinder 5. During the process of the withering cylinder 5 tumbling and withering the tea leaves, the impurities in the tea leaves can pass through the withering cylinder 5 and fall into the slag receiving frame 21 for collection.

[0058] Furthermore, an air heating device 7 is arranged outside the withering cylinder 5. The air heating device 7 can adopt an electric heating method. The electric heating rod can be installed inside the housing, and the electric heating rod emits light and heat through an external power supply to heat the air flowing through the inside of the housing. This is a mature technology in the prior art and will not be elaborated here. A blowing and suction mechanism 6 is arranged between the air heating device 7 and the withering cylinder 5, which is used to pump the air inside the inner cylinder 53 to the air heating device 7 for heating and then transport it to the sandwich layer formed between the inner cylinder 53 and the outer cylinder 51, and finally transport it back to the inside of the inner cylinder 53.

[0059] Further, the blowing and suction mechanism 6 includes a blowing frame 69 and a suction frame 65 attached to the outer wall of the outer cylinder 51. Two arc-shaped connecting plates 62 are fixedly connected between the suction frame 65 and the blowing frame 69. The air heating device 7 is fixedly connected to the upper end of one of the arc-shaped connecting plates 62. An induced draft fan 63 is fixedly connected to the outer wall of the suction frame 65. A suction pipe 64 is fixedly connected and communicated between the suction port of the induced draft fan 63 and the suction frame 65. The air outlet of the induced draft fan 63 is fixedly connected and communicated with the air heating device 7 through a pipeline. The air heating device 7 is fixedly connected and communicated with one of the hollow supporting rings 4 through a delivery pipe 61. The blowing and suction mechanism 6 includes a vertical plate 691 fixedly connected between the blowing frame 69 and the support frame 2 for supporting the blowing frame 69. A blowing pipe 68 communicated with the inside of the blowing frame 69 is fixedly connected to the outer wall of the blowing frame 69. The other end of the blowing pipe 68 is fixedly connected and communicated with a Tesla valve pipe 67. A bent pipe 66 is fixedly connected and communicated between the Tesla valve pipe 67 and the hollow supporting ring 4.

[0060] In this embodiment, when the tea leaves are tumbling and conveyed inside the tea-killing cylinder 5, the outer cylinder 51 slides in contact with the blowing frame 69 and the suction frame 65. The induced draft fan 63 is started, and the induced draft fan 63 sucks the inside of the suction frame 65 through the suction pipe 64, so that the suction frame 65 can suck the inner side of the inner cylinder 53 through a row of communicating pipes 55 communicated with the suction frame 65. When the tea leaves are undergoing the tea-killing operation inside the tea-killing cylinder 5, the water vapor evaporated can be absorbed and sent into the air heating device 7 for drying. The air dried by the air heating device 7 is then conveyed through the delivery pipe 61 into the inside of the hollow supporting ring 4, and then into the interlayer between the outer cylinder 51 and the inner cylinder 53, so that the temperature of the inner wall of the inner cylinder 53 rises, and thus the tea leaves inside the inner cylinder 53 can be tea-killed. When the air pressure in the interlayer between the outer cylinder 51 and the inner cylinder 53 gradually rises, the air will be conveyed through the other hollow supporting ring 4 into the bent pipe 66. After being accelerated by the Tesla valve pipe 67, it is conveyed through the blowing pipe 68 into the blowing frame 69, so that the hot air in the blowing frame 69 can be blown into the inside of the inner cylinder 53 through a row of communicating pipes 55 communicated with the blowing frame 69. The hot air blown into the inside of the inner cylinder 53 can both air-dry and tea-kill the tea leaves, and can also disperse and make the agglomerated tea leaves fall, improving the tea-killing efficiency of the tea leaves. Embodiment

[0061] Please refer to Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As well as

[0062] Specifically, the driving mechanism 1 includes a driving motor 12 fixedly installed on the support frame 2. A driving gear 13 is fixedly connected to the end of the output shaft of the driving motor 12. A toothed ring 11 meshing with the driving gear 13 is fixedly sleeved on the outer wall of the tea-killing cylinder 5. A driving shaft 14 is fixedly connected to the outer wall of the driving gear 13. A fixing block 15 is fixedly connected to the outer wall of the hollow supporting ring 4. The driving shaft 14 rotatably penetrates through the inside of the fixing block 15. A fixing shaft 17 is eccentrically fixedly connected to one end of the driving shaft 14. A connecting rod 16 is rotatably connected to the fixing shaft 17. The other end of the connecting rod 16 is hinged to the inclined supporting plate 32.

[0063] Specifically, the blanking assembly 3 includes a blanking frame 31 fixedly connected to the end of the hollow supporting ring 4 and an inclined supporting plate 32 slidably arranged at the bottom end of the blanking frame 31. The blanking frame 31 and the inclined supporting plate 32 can effectively reduce heat dissipation. A sliding groove 33 for the inclined supporting plate 32 to slide is formed inside the outer wall of the hollow supporting ring 4. A shaft rod 35 is fixedly connected inside the sliding groove 33. The shaft rod 35 slidably penetrates through the inside of the inclined supporting plate 32. A connecting spring 34 is sleeved outside the shaft rod 35. Both ends of the connecting spring 34 are fixedly connected to the side wall of the inclined supporting plate 32 and the end of the sliding groove 33 respectively.

[0064] In this embodiment, when the power is turned on and the driving motor 12 is started, the output shaft of the driving motor 12 drives the driving gear 13 to rotate. The driving gear 13 drives the tea-killing cylinder 5 to rotate between the two hollow supporting rings 4 through the toothed ring 11. Every time the tea-killing cylinder 5 rotates one week, it can drive the transmission gear 91 once through the transmission tooth block 92, so that the transmission gear 91 rotates intermittently at a certain angle. When the tea leaves are conveyed from one port of the tea-killing cylinder 5 to the other port and fall onto the inclined supporting plate 32, since the rotation of the driving gear 13 will also drive the driving shaft 14 to rotate, the driving shaft 14 drives the fixing shaft 17 to rotate. The fixing shaft 17 pushes and pulls the connecting rod 16, so that the inclined supporting plate 32 can reciprocally slide inside the sliding groove 33, causing the inclined supporting plate 32 to move back and forth at the bottom end of the blanking frame 31, thereby enabling the tea leaves falling on the inclined supporting plate 32 to be vibrated and discharged. Embodiment

[0065] Please refer to Figure 1 With Figure 2 , compared with the hollow supporting ring 4 in Embodiment 2, a feeding mechanism 8 is arranged at the port of the other hollow supporting ring 4. A transmission mechanism 9 is arranged between the feeding mechanism 8 and the hollow supporting ring 4. During the rotation of the tea-killing cylinder 5, the feeding mechanism 8 can be driven through the transmission mechanism 9.

[0066] Specifically, the feeding mechanism 8 includes a material guiding frame 83 extending to the inside of the hollow support ring 4. On both sides of the material guiding frame 83, there are symmetrically fixed support rods 84 for supporting the material guiding frame 83. On one side of the material guiding frame 83, there is a first feeding component 81 arranged obliquely. The first feeding component 81 includes two first side plates 811 arranged in parallel. Between the two first side plates 811, there are two first rollers 812 rotatably connected. A first conveyor belt 814 is sleeved between the two first rollers 812 in a driving manner. A plurality of material receiving frames 813 are evenly distributed on the outer wall of the first conveyor belt 814. During the process of the material receiving frames 813 being driven by the first conveyor belt 814, they will not come into contact and collide with the material guiding frame 83.

[0067] Further, on one side of the first feeding component 81, there is a second feeding component 82. The second feeding component 82 includes two second side plates 821 arranged in parallel. Between the two second side plates 821, there are two second rollers 823 rotatably connected. A second conveyor belt 822 is sleeved between the two second rollers 823 in a driving manner. At the upper ends of the two second side plates 821, there is a common fixed hopper 87. On the outer walls of the two second side plates 821, there is a common fixed support frame 86 for supporting the second feeding component 82. On the outer wall of the first side plate 811, there is a fixed support plate 85 for supporting the first side plate 811.

[0068] Furthermore, the transmission mechanism 9 includes a connecting seat 99 fixed on the outer wall of the hollow support ring 4. Inside the connecting seat 99, there is a rotatably sleeved rotating rod 93. At one end of the rotating rod 93, there is a fixed transmission gear 91. On the outer wall of the outer cylinder 51, there are several transmission teeth 92 cooperating with the transmission gear 91. At the end of the first roller 812 located on the upper side, there is a fixed first coupling 95. At one end of the first coupling 95 and one end of the rotating rod 93, there is a bevel gear 94 each, and the two bevel gears 94 are meshed with each other. At the end of one of the second rollers 823, there is a fixed second coupling 98. On the outer walls of the second coupling 98 and the first coupling 95, there is a pulley 97 each, and a transmission belt 96 is connected between the two pulleys 97 in a driving manner.

[0069] In this embodiment, during the rotation of the transmission gear 91, it can drive the rotating rod 93 to rotate. Under the action of the two bevel gears 94, it can drive the first coupling 95 to rotate. Under the action of the transmission belt 96 and the two belt pulleys 97, it can drive the second coupling 98 to rotate, thereby driving the second conveyor belt 822 and the first conveyor belt 814 to transmit. The second conveyor belt 822 conveys the tea leaves falling from the lower port of the hopper 87 to the receiving frame 813 provided on the first conveyor belt 814. Then, the transmission of the first conveyor belt 814 will move the position of the receiving frame 813 upward. When the receiving frame 813 flips to the other side of the first conveyor belt 814, the tea leaves inside the receiving frame 813 will fall into the guiding frame 83 under the action of gravity and centrifugal force, and are conveyed to the inside of the tea-killing cylinder 5 through the guiding frame 83.

[0070] Working principle and usage process: First, place the tea leaves to be tea-killed in the hopper 87. The tea leaves at the bottom fall to the upper end of the second conveyor belt 822. When the power is turned on and the driving motor 12 is started, the output shaft of the driving motor 12 drives the driving gear 13 to rotate. The driving gear 13 drives the tea-killing cylinder 5 to rotate between the two hollow supporting rings 4 through the toothed ring 11. Every time the tea-killing cylinder 5 rotates one week, it can drive the transmission gear 91 once through the transmission tooth block 92, so that the transmission gear 91 rotates intermittently at a certain angle. During the rotation of the transmission gear 91, it can drive the rotating rod 93 to rotate. Under the action of the two bevel gears 94, it can drive the first coupling 95 to rotate. Under the action of the transmission belt 96 and the two belt pulleys 97, it can drive the second coupling 98 to rotate, thereby driving the second conveyor belt 822 and the first conveyor belt 814 to transmit. The second conveyor belt 822 conveys the tea leaves falling from the lower port of the hopper 87 to the receiving frame 813 provided on the first conveyor belt 814. Then, the transmission of the first conveyor belt 814 will move the position of the receiving frame 813 upward. When the receiving frame 813 flips to the other side of the first conveyor belt 814, the tea leaves inside the receiving frame 813 will fall into the guiding frame 83 under the action of gravity and centrifugal force, and are conveyed to the inside of the tea-killing cylinder 5 through the guiding frame 83.

[0071] When the tea-killing cylinder 5 rotates between the two hollow supporting rings 4, the spiral guide vane 54 on the inner wall of the inner cylinder 53 can tumble the tea leaves. The inclined spiral guide vane 54 can guide the tea leaves while tumbling them, continuously approaching and conveying them to the other port, realizing the automatic feeding work of the tea leaves in the tea-killing cylinder 5. This is a mature existing technology and will not be elaborated here.

[0072] When the tea leaves are tumbling and conveyed inside the tea-killing cylinder 5, the outer cylinder 51 slides in contact with the blowing frame 69 and the suction frame 65. Start the induced draft fan 63. The induced draft fan 63 sucks the inside of the suction frame 65 through the suction pipe 64, so that the suction frame 65 can suck the inner side of the inner cylinder 53 through a row of communicating pipes 55 connected to the suction frame 65. When the tea leaves are undergoing the tea-killing work inside the tea-killing cylinder 5, the water vapor evaporated can be absorbed and sent to the air heating device 7 for drying. The air dried by the air heating device 7 is then conveyed through the conveying pipe 61 to the inside of the hollow support ring 4, and then to the interlayer between the outer cylinder 51 and the inner cylinder 53, so that the temperature of the inner wall of the inner cylinder 53 rises, thereby enabling the tea leaves inside the inner cylinder 53 to be tea-killed. When the air pressure in the interlayer between the outer cylinder 51 and the inner cylinder 53 gradually increases, the air will be conveyed to the inside of the elbow pipe 66 through another hollow support ring 4, accelerated by the Tesla valve pipe 67, and then sent to the blowing frame 69 through the blowing pipe 68, so that the hot air in the blowing frame 69 can be blown into the inside of the inner cylinder 53 through a row of communicating pipes 55 connected to the blowing frame 69. The hot air blown into the inside of the inner cylinder 53 can both air-dry and tea-kill the tea leaves, and can also blow and disperse the tea leaves piled up in a lump and make them fall, improving the tea-killing efficiency of the tea leaves.

[0073] When the tea leaves are conveyed from one end of the tea-killing cylinder 5 to the other end and fall onto the inclined support plate 32, since the rotation of the driving gear 13 will also drive the driving shaft 14 to rotate, the driving shaft 14 drives the fixed shaft 17 to rotate. The fixed shaft 17 pushes and pulls the connecting rod 16, so that the inclined support plate 32 can reciprocally slide inside the chute 33, causing the inclined support plate 32 to move back and forth at the bottom end of the blanking frame 31, thereby enabling the tea leaves falling on the inclined support plate 32 to be vibrated and discharged.

[0074] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tea withering machine, comprising: A support frame (2), characterized in that two hollow support rings (4) are symmetrically fixedly connected to the upper end of the support frame (2), a killing tube (5) is rotatably arranged between the two hollow support rings (4), the killing tube (5) comprises an inner tube (53) and an outer tube (51) arranged outside the inner tube (53), connecting tubes (55) are evenly distributed between the outer tube (51) and the inner tube (53), two ends of the connecting tube (55) respectively penetrate the outer wall of the outer tube (51) and the inner wall of the inner tube (53), the inner wall of the inner tube (53) has a plurality of spiral guide vanes (54) in an annular array, the outer wall of the end of the outer tube (51) is fixedly sleeved with a limiting ring (52), the limiting ring (52) is slidably sleeved inside the hollow support ring (4), and a sandwich layer connected to the internal space of the hollow support ring (4) is formed between the inner tube (53) and the outer tube (51); An air heating device (7) is disposed outside the withering cylinder (5), and a blowing and sucking mechanism (6) is disposed between the air heating device (7) and the withering cylinder (5), for pumping air inside the inner cylinder (53) into the air heating device (7), heating the air, and then transporting the air to the interlayer formed between the inner cylinder (53) and the outer cylinder (51), and finally transporting the air back to the inner cylinder (53); A material discharge assembly (3) is provided at the end of one of the hollow supporting rings (4), and a driving mechanism (1) is provided between the withering cylinder (5) and the support frame (2) for rotating the withering cylinder (5) between the two hollow supporting rings (4) and locally vibrating the material discharge assembly (3); A feeding mechanism (8) is arranged at the other end of the hollow supporting ring (4), and a transmission mechanism (9) is arranged between the feeding mechanism (8) and the hollow supporting ring (4). During the rotation of the withering cylinder (5), the feeding mechanism (8) can be driven by the transmission mechanism (9); The blowing and suction mechanism (6) comprises a blowing frame (69) and a suction frame (65) attached to the outer wall of the outer cylinder (51); two arc-shaped connecting plates (62) are fixedly connected between the suction frame (65) and the blowing frame (69); the air heating device (7) is fixedly connected to the upper end of one of the arc-shaped connecting plates (62); an induced draft fan (63) is fixedly connected to the outer wall of the suction frame (65); a suction pipe (64) is fixedly connected between the air suction port of the induced draft fan (63) and the suction frame (65); the air outlet of the induced draft fan (63) is fixedly connected to the air heating device (7) via a pipeline; and the air heating device (7) is fixedly connected to one of the hollow supporting rings (4) via a conveying pipe (61); The blowing and suction mechanism (6) comprises a vertical plate (691) fixedly connected between the blowing frame (69) and the support frame (2) for supporting the blowing frame (69); a blowing pipe (68) connected to the interior of the blowing frame (69) is fixedly connected to the outer wall of the blowing frame (69); the other end of the blowing pipe (68) is fixedly connected to a Tesla valve pipe (67); and a bent pipe (66) is fixedly connected between the Tesla valve pipe (67) and the hollow supporting ring (4).

2. A tea leaf fixing machine according to claim 1, characterized in that: The blanking assembly (3) comprises a blanking frame (31) fixedly connected to the end of a hollow supporting ring (4) and an inclined support plate (32) slidably arranged at the bottom end of the blanking frame (31); a slide groove (33) for the inclined support plate (32) to slide is provided inside the outer wall of the hollow supporting ring (4); a shaft rod (35) is fixedly connected inside the slide groove (33); the shaft rod (35) slides through the inside of the inclined support plate (32); a connecting spring (34) is sleeved on the outer side of the shaft rod (35); two ends of the connecting spring (34) are respectively fixedly connected to the side wall of the inclined support plate (32) and the end of the slide groove (33).

3. A tea leaf fixing machine according to claim 2, characterized in that: The driving mechanism (1) comprises a driving motor (12) fixedly mounted on the supporting frame (2), the output shaft end of the driving motor (12) being fixedly connected to a driving gear (13), a gear ring (11) meshing with the driving gear (13) being fixedly sleeved on the outer wall of the withering tube (5), a driving shaft (14) being fixedly connected to the outer wall of the driving gear (13), a fixing block (15) being fixedly connected to the outer wall of the hollow supporting ring (4), the driving shaft (14) rotatably passing through the inside of the fixing block (15), one end of the driving shaft (14) being eccentrically fixedly connected to a fixing shaft (17), a connecting rod (16) being rotatably connected to the fixing shaft (17), the other end of the connecting rod (16) being hinged to the inclined support plate (32).

4. A tea leaf fixing machine according to claim 3, characterized in that: The feeding mechanism (8) comprises a material guide frame (83) extending to the inner side of the hollow supporting ring (4), support rods (84) for supporting the material guide frame (83) are symmetrically fixedly connected to both sides of the material guide frame (83), a first material feeding component (81) arranged in an inclined manner is arranged on one side of the material guide frame (83), the first material feeding component (81) comprises two first side plates (811) arranged in parallel, two first rollers (812) are rotatably connected between the two first side plates (811), a first conveyor belt (814) is arranged on a transmission sleeve between the two first rollers (812), and a plurality of material receiving frames (813) are evenly distributed on the outer wall of the first conveyor belt (814).

5. A tea leaf fixing machine according to claim 4, characterized in that: A second feeding component (82) is arranged on one side of the first feeding component (81), the second feeding component (82) comprises two second side plates (821) arranged in parallel, two second rotating rollers (823) are rotatably connected between the two second side plates (821), and a second conveyor belt (822) is arranged on a transmission sleeve between the two second rotating rollers (823); A hopper (87) is fixedly connected to the upper ends of the two second side plates (821), a support frame (86) for supporting the second loading component (82) is fixedly connected to the outer walls of the two second side plates (821), and a support plate (85) for supporting the first side plate (811) is fixedly connected to the outer wall of the first side plate (811).

6. A tea leaf fixing machine according to claim 5, characterized in that: The transmission mechanism (9) comprises a connecting seat (99) fixedly connected to the outer wall of the hollow supporting ring (4), a rotating rod (93) is rotatably sleeved inside the connecting seat (99), one end of the rotating rod (93) is fixedly connected to a transmission gear (91), a plurality of transmission gear blocks (92) matched with the transmission gear (91) are fixedly connected to the outer wall of the outer cylinder (51), a first coupling shaft (95) is fixedly connected to the end of the first rotating roller (812) located on the upper side, one end of the first coupling shaft (95) and one end of the rotating rod (93) are both fixedly connected to a bevel gear (94), and the two bevel gears (94) are meshed with each other; A second coupling shaft (98) is fixedly connected to the end of one of the second rotating rollers (823); a belt pulley (97) is fixedly sleeved on the outer wall of the second coupling shaft (98) and the outer wall of the first coupling shaft (95); and a transmission belt (96) is connected between the two belt pulleys (97).

7. A tea leaf fixing machine according to claim 6, characterized in that: A slag receiving frame (21) is provided on the outer wall of the support frame (2) located below the withering cylinder (5).

8. A method for withering tea leaves, using a tea withering machine as claimed in claim 7, characterized in that: The following steps are involved: S1. The tea leaves to be withered are stored in a hopper (87), and the tea leaves at the bottom fall to the upper end of the second conveyor belt (822). When the power is turned on and the drive motor (12) is started, the output shaft of the drive motor (12) drives the drive gear (13) to rotate, and the drive gear (13) drives the withering cylinder (5) to rotate between the two hollow support rings (4) through the gear ring (11). Each time the withering cylinder (5) rotates one circle, the transmission gear (91) can be driven once through the transmission gear block (92), so that the transmission gear (91) rotates intermittently at a certain angle; S2. During the rotation of the transmission gear (91), the rotating rod (93) can be driven to rotate. Under the action of the two bevel gears (94), the first coupling shaft (95) can be driven to rotate. Under the action of the transmission belt (96) and the two pulleys (97), the second coupling shaft (98) can be driven to rotate, thereby driving the second conveyor belt (822) and the first conveyor belt (814) to transmit. The second conveyor belt (822) transports the tea leaves dropped from the lower port of the hopper (87) to the receiving frame (813) provided on the first conveyor belt (814). Then, the transmission of the first conveyor belt (814) will move the receiving frame (813) upward until the receiving frame (813) is turned over to the other side of the first conveyor belt (814). The tea leaves inside the receiving frame (813) will fall into the guide frame (83) under the action of gravity and centrifugal force, and will be transported to the inside of the withering cylinder (5) through the guide frame (83); S3, when the withering cylinder (5) rotates between the two hollow support rings (4), the spiral guide vane plate (54) on the inner wall of the inner cylinder (53) can roll the tea leaves, and the inclined spiral guide vane plate (54) can guide the tea leaves while rolling them, and continuously transport them to the other end; S4. When the tea leaves are tumbling and conveyed inside the withering cylinder (5), the outer cylinder (51) slides with the blowing frame (69) and the suction frame (65), and the induced draft fan (63) is started. The induced draft fan (63) sucks the inside of the suction frame (65) through the suction pipe (64), so that the suction frame (65) can suck the inside of the inner cylinder (53) through a row of connecting pipes (55) connected to the suction frame (65). When the tea leaves are withering inside the withering cylinder (5), the water vapor generated by evaporation can be absorbed and dried in the air heating device (7). The air dried by the air heating device (7) is then conveyed to the inside of the hollow supporting ring (4) through the conveying pipe (61), and then conveyed to the interlayer between the outer cylinder (51) and the inner cylinder (53), so that the temperature of the inner wall of the inner cylinder (53) increases, thereby withering the tea leaves inside the inner cylinder (53); S5. When the air pressure in the interlayer between the outer tube (51) and the inner tube (53) gradually increases, the air is transported to the inside of the curved tube (66) through another hollow supporting ring (4), and after being accelerated by the Tesla valve tube (67), the air is transported to the blowing frame (69) through the blowing pipe (68), so that the hot air in the blowing frame (69) can be blown to the inside of the inner tube (53) through a row of connecting tubes (55) connected to the blowing frame (69). The hot air blown into the inner tube (53) can not only dry the tea leaves, but also blow away the tea leaves that are clumped together and make them fall, thereby improving the tea leaves' withering efficiency. S6. When the tea leaves are transported from one end of the withering cylinder (5) to the other end and fall onto the inclined support plate (32), the rotation of the driving gear (13) also drives the driving shaft (14) to rotate, and the driving shaft (14) drives the fixed shaft (17) to rotate. The fixed shaft (17) pushes and pulls the connecting rod (16), so that the inclined support plate (32) can slide back and forth inside the slide groove (33), so that the inclined support plate (32) moves back and forth at the bottom end of the unloading frame (31), so that the tea leaves falling on the inclined support plate (32) can be unloaded by vibration.

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