A tea production tumble roaster

Abstract

The present application relates to the technical field of tea production, in particular to a tea production turnover baking device; a motor, a box body, a turnover assembly, a temperature control assembly, motor rooms are formed in the front and rear ends of the box body respectively; a turnover plate is formed in the upper portion of the box body; a mounting hole is formed in the rear end of the box body for mounting the turnover assembly; air inlet pipes and air outlet pipes with spiral channels inside are formed in the upper portion of the box body; the temperature control assembly for slowing down the hot air flow speed is mounted in the front end of the box body and is communicated with the air inlet pipes and the air outlet pipes; the turnover assembly for changing the hot air direction by using the temperature difference change is mounted outside the temperature control assembly; the present application solves the problem of how to adjust the tea heating position at different temperatures to realize uniform tea baking, and further improves the overall quality of the tea.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tea production, in particular to a turnover baking device for tea production. BACKGROUND

[0002] Tea is a traditional Chinese culture, and we have started to manufacture tea leaves since thousands of years ago. Baking is very important, which means to evaporate the excess moisture in tea leaves by high temperature, thereby prolonging the storage time of tea leaves, evaporating the green smell in tea leaves, maximizing the aroma of tea leaves, and improving the taste of tea leaves. After baking, the tea leaves have beautiful color and mellow taste.

[0003] In the prior art, there are three ways to bake tea leaves, namely baking machine baking, resistance baking cage baking and charcoal baking. The baking machine baking uses timing and temperature to bake tea, and the tea leaves can be evenly heated. The resistance baking cage baking uses electric heating energy to adjust the temperature, and the baking steps are the same as the charcoal baking method, which is more suitable for baking tea with fresh and sweet taste. The charcoal baking method can make tea leaves absorb carbon dioxide from charcoal, soften water quality, and increase the aroma and taste.

[0004] In the baking process, the temperature needs to be carefully controlled to avoid adverse effects of temperature on tea baking. When the temperature is too high, the internal structure of the tea leaves will be damaged, resulting in baking failure and quality reduction. When the temperature of the tea leaves is too low, the excess moisture in the tea leaves is not removed enough, resulting in reduced storage time of the tea leaves and incomplete activation of the aroma of the tea leaves. In the baking process, hot air rises from the low end, the tea leaves at the low end of the baking cage are subjected to higher temperature, and the tea leaves at the upper end of the baking cage are subjected to lower temperature. In addition, the tea leaves cannot be turned over, so that the tea leaves are not evenly heated in the baking process.

[0005] Therefore, the prior art uses electric heating to bake tea. First, the tea leaves are evenly laid on the tray, the tray with tea leaves is placed in the baking chamber of the baking machine, and then the tea baking machine is started. The heater at the top of the baking machine is powered by electric current, and the heater transmits heat to the air in the baking chamber, thereby increasing the temperature in the machine body to bake the tea leaves. However, the problem of uneven heating caused by the inability of the tea leaves to turn over has not been solved.

[0006] Therefore, in order to overcome the above technical problems, the present application designs a turnover baking device for tea production, which solves the above technical problems. SUMMARY

[0007] The technical problem to be solved by the present application is how to adjust the heating position of tea leaves at different temperatures to achieve uniform baking of tea leaves.

[0008] In order to achieve the above object, the present application provides the following technical scheme: A tea production turnover baking device, comprising a motor, a box body, a turnover assembly, a temperature control assembly, motor rooms are respectively arranged at the front and rear ends of the box body, and a turnover plate for feeding is arranged at the upper portion of the box body; an installation hole is arranged at the rear end of the box body for installing the turnover assembly, the turnover assembly causes the tea to turn over during the baking process, so that the tea is evenly heated on both sides, the moisture contained in the baked tea is dried, and the baking effect is increased; an air inlet pipe and an air outlet pipe with spiral channels inside are arranged on the box body, the spiral channels inside the air inlet pipe and the air outlet pipe cause the air flow to rotate to flow in or out, the flow rate of the air is increased, and the heating and heat dissipation processes are improved; the temperature control assembly for slowing down the flow speed of the hot air is installed at the front end of the box body and is communicated with the air inlet pipe and the air outlet pipe; the turnover assembly for changing the direction of the hot air by using the change of the temperature difference is installed outside the temperature control assembly, when the baking temperature in the baking device changes, the temperature control assembly starts to rotate and drives the turnover assembly to work, the turnover assembly realizes the turnover of the tea and changes the heating position of the tea, and meanwhile, the turnover assembly changes the direction of the hot air, and the baking effect of the tea is improved.

[0009] Preferably, the turnover assembly comprises a rotating shaft, a rolling barrel, a turnover cover, a shaft sleeve, a fixing rod and a turnover rod, the rotating shaft is rotatably connected with the box body, the rotating shaft is fixedly connected with the inner wall of the rear side of the rolling barrel, the rolling barrel is provided with the turnover cover, when the tea enters, the buckle is opened, the turnover cover is opened, when the tea is completely conveyed, the turnover cover is closed, the buckle is closed, when the motor is started, the rotating shaft drives the rolling barrel to rotate, when the rolling barrel rotates, the tea placed in the rolling barrel rotates with the rolling barrel, and the turnover of the tea is realized; the rolling barrel is provided with circular air inlet holes, the circular air inlet holes enable the hot air to enter the rolling barrel, the temperature inside the rolling barrel is increased, the tea is baked, meanwhile, the rolling barrel rotates and drives the hot air to flow, the temperature in the barrel is uniform, a circular installation hole is arranged at the position of the right end center of the rolling barrel, the circular installation hole connects the rolling barrel with the temperature control assembly; the shaft sleeve is connected with the temperature control assembly; the shaft sleeve is provided with internal threads at the bottom end, and installation holes are arranged above the internal threads; the shaft sleeve is slidably connected with a fixing block, the two sides of the installation hole of the shaft sleeve are provided with a cylindrical surface and the surface of the fixing block in contact, the freedom degree of the fixing block is limited, the fixing block cannot move left and right, the turnover rod which is unfolded to realize the change from the linear flow of the hot air to the rotary flow of the hot air by the change of the temperature difference is installed in the installation hole of the shaft sleeve, the turnover rod is unfolded to realize the change of the flow direction of the hot air, the top end of the turnover rod is rotatably connected with the fixing rod through a through hole, the turnover rod swings around the connection point with the fixing rod, so that the tea is turned over and stirred, and the lower end of the fixing rod is provided with a limiting block for limiting the movement of the fixing rod only with the rotation of the temperature control assembly.

[0010] Preferably, the temperature control assembly comprises a transmission shaft, a driving spur gear, an auxiliary spur gear, a rotating barrel, a driving wheel, a fixed wheel, a driven wheel, the transmission shaft is divided into an upper end and a lower end, the diameter of the upper end is smaller than that of the lower end, an external thread is formed on the transmission shaft to convert rotary motion into linear motion of the shaft sleeve, a linear array of limit grooves is formed above the external thread, the limit grooves are provided with sliding grooves to stabilize the position of the turnover rod and maintain the rotary flow of hot air, the limit grooves limit the movement of the fixed rod, thereby supporting the turnover rod and improving the stability of the turnover plate, the transmission shaft is connected with the turnover assembly, the transmission shaft realizes different working states of the turnover assembly through forward and reverse rotation, the transmission shaft is fixedly connected with the driving spur gear, the driving spur gear is installed on the inner surface of the box and is rotatably connected with the box, an auxiliary spur gear is installed on the outer side of the driving spur gear to form a rotating cavity, the rotating cavity is provided with an air inlet and an air outlet, a plurality of spur gears for changing the flow of hot air are arranged in a circumferential array in the rotating cavity, under the action of the driving spur gear and the auxiliary spur gear, the spur gears in the circumferential array rotate in the rotating cavity under the driving of the driving spur gear, thereby opening or closing the air inlet and the air outlet, and ensuring the temperature in the baking device; a driving wheel is arranged in front of the driving spur gear, the driving wheel is connected with the driven wheel; the driven wheel is connected with the fixed wheel; the fixed wheel is connected with a rotating barrel for changing the hot air flow area, under the action of the driving wheel, the driven wheel and the fixed wheel, the rotating barrel is opened or closed to change the hot air flow area inside the rotating barrel, the surface of the rotating barrel is arranged with circular air inlets to facilitate the hot air entering the inside of the rotating barrel, heat the inside of the rotating barrel, and the rotating barrel is connected with the turnover assembly.

[0011] Preferably, the inner wall of the rolling barrel is provided with protrusions for changing the flow direction of hot air and enhancing the turnover of tea leaves, the protrusions are fixedly installed inside the rolling barrel, when the hot air flows in the rolling barrel, the protrusions block the flow of hot air, change the flow direction of hot air, blow the tea leaves to turn over, make the tea leaves turn over uniformly, and enhance the baking effect of tea leaves.

[0012] Preferably, four rows of turnover rods are arranged in a circular array on the shaft sleeve; the lengths of the turnover rods arranged in a symmetrical two-row spiral hot air guiding manner increase from front to back, the lengths of the turnover rods arranged in a stepped shape to guide the flow direction of wind speed, make the hot air flow in a spiral manner, strengthen the flow of hot air in the rolling barrel, enhance the flow speed of hot air, drive the tea leaves to turn over to realize uniform heating, and accelerate the heat dissipation in the rolling barrel to make the temperature in the rolling barrel drop to a suitable baking temperature range.

[0013] Preferably, the bottom end of the length-unchanged turnover rod is provided with an arc-shaped block; the bottom end of the arc-shaped block of the turnover rod bottom end is arrayed with a stripe-shaped protrusion; the stripe-shaped protrusion intermittently extrudes the spirally flowing tea leaves in the rolling barrel; when the turnover rod is unfolded, the arc-shaped block of the turnover rod bottom end is in a process gap with the rolling barrel; when the turning tea leaves pass through the gap between the arc-shaped block and the rolling barrel, the tea leaves are extruded and rubbed by the stripe-shaped protrusion and the rolling barrel; under the action of the turnover rod and the rolling barrel, the tea leaves are preliminarily rubbed to facilitate subsequent tea leaf shaping.

[0014] Preferably, the thicknesses of the rolling barrel, the rotating barrel and the box body gradually increase, and the heat transfer of the rolling barrel, the rotating barrel and the box body gradually decreases; with the increase of the wall thickness, the heat conduction performance gradually decreases; the box body is located at the outermost side, and the wall thickness is the thickest, which is beneficial to maintaining the temperature inside the box body and avoiding rapid temperature loss; the wall thickness of the rolling barrel is the thinnest, which is beneficial to heat transfer; when the tea leaves follow the rolling barrel to turn over, the tea leaves are close to the inner wall of the rolling barrel and are subjected to heat transfer of the rolling barrel, thereby improving the baking efficiency and ensuring the baking quality of the tea leaves.

[0015] Preferably, the rotating barrel is composed of a fixed barrel and a rotating barrel; the fixed barrel and the rotating barrel are both arrayed with circular air vents; the fixed barrel and the rotating barrel switch between heat preservation and heat dissipation states by sensing the temperature change in the rolling barrel; when the temperature inside the rolling barrel is too high, the rotating barrel rotates, the fixed barrel and the rotating barrel of the rotating barrel are dislocated, the rotating barrel is opened to dissipate heat, and at the same time, the rolling barrel rotates to accelerate the hot air flow; when the temperature inside the rolling barrel is too low, the rotating shaft rotates, the fixed barrel and the rotating barrel of the rotating barrel are closed to heat preserve the temperature inside the rolling barrel, and the hot air enters and exits through the hot air inlets on the rotating barrel and the rolling barrel, at the same time, the rolling barrel rotates to drive the hot air to flow between the rolling barrel and the rotating barrel, so that the temperature is uniform, the outflow of the hot air is reduced, and the baking temperature of the tea leaves is ensured.

[0016] The beneficial effects of the present application are as follows:

[0017] 1. The turnover baking device for tea production of the present application controls the flow curvature of the hot air at different temperatures, turns over the tea leaves through the turnover assembly, makes the tea leaves evenly heated, and switches the functions at different working temperatures by the turnover assembly driven by the temperature control assembly when the temperature in the baking device changes, so that the tea leaves are evenly heated as a whole, and the baking effect is improved.

[0018] 2. The turnover baking device for tea production of the present application controls the temperature in the baking device by driving the temperature control assembly through the motor, regulating the air inlet and outlet, ensuring that the tea leaves are always in the required baking temperature range, ensuring the removal of water in the tea leaves, and improving the baking quality of the tea leaves.

[0019] 3. The tea production turnover baking device of the present application, the motor drives the temperature control assembly to realize different working states of the turnover assembly at different temperatures, when the turnover assembly enters the high-temperature working state, the turnover assembly makes the tea turn over, and the tea is evenly heated, and under the cooperation of the components in the turnover assembly, the tea is kneaded, facilitating subsequent tea shaping. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced.

[0021] Fig. 1 is the overall structure schematic diagram of the present application;

[0022] Fig. 2 is the overall structure partial sectional view of the present application;

[0023] Fig. 3 is the turnover assembly sectional view of the present application;

[0024] Fig. 4 is the turnover assembly partial view of the present application;

[0025] Fig. 5 is the double-layer heat preservation structure diagram of the present application;

[0026] Fig. 6 is the temperature control assembly planetary gear train partial view of the present application;

[0027] Fig. 7 is the temperature control assembly rotating barrel partial view of the present application;

[0028] In the figure: 1, box; 12, turning plate; 13, air inlet pipe; 14, air outlet pipe; 2, turnover assembly; 21, rotating shaft; 22, rolling barrel; 221, turning cover; 222, buckle; 223, protruding block; 23, shaft sleeve; 24, fixed rod; 241, limiting block; 25, turnover rod; 251, stripe protrusion; 3, temperature control assembly; 31, transmission shaft; 32, driving spur gear; 33, auxiliary spur gear; 34, rotating barrel; 341, fixed barrel; 342, rotating barrel; 35, driving wheel; 36, fixed wheel; 37, driven wheel; 38, gear ring; 39, heat dissipation gear; 310, wind blocking gear; 311, limiting groove. DETAILED DESCRIPTION

[0029] As Figs. 1-2As shown, a tea production turnover baking device, the top of the box 1 is provided with a turnover plate 12, when you need to put in tea, open the top of the box 1 turnover plate 12, the tea from the top of the baking device, into the turnover assembly 2, baking, box 1 front and rear end of the central axis position respectively set up motor room, motor room through the installation hole and the box 1 intercommunication, box 1 front end motor room, fixedly installed with motor, motor and temperature control assembly 3 connection, box 1 rear end motor room fixed with motor, motor and turnover assembly 2 connection, tea baking first start motor drive turnover assembly 2 on the tea turnover, make tea evenly heated, improve the taste of tea and storage time, box 1 front end installation hole below both sides of 60° position respectively set up air inlet pipe 13 and air outlet pipe 14, air inlet pipe 13 and air outlet pipe 14 diameter size is consistent, air inlet pipe 13 and air outlet pipe 14 and temperature control assembly 3 cooperation, realize the temperature control in the baking device, make the temperature in the baking device to keep in a suitable range for tea baking, ensure the baking quality of tea; temperature control assembly 3 outside installation is used for adjusting the turnover assembly 2 of tea heating position by temperature control assembly 3, when the temperature is too high or too low, start the motor, motor drive temperature control assembly 3 work, temperature control assembly 3 adjust the temperature in the baking device, at the same time, temperature control assembly 3 drive turnover assembly 2 to realize the change of working state, and then realize the working mode under different temperature state, so as to change the heating position of tea, make tea evenly heated.

[0030] As shown, Figs. 3-4 the shaft 21 and motor fixed connection, through the motor room one side of the installation hole into the box 1 inside, the shaft 21 and the barrel 22 are fixedly connected, at the same time, the shaft 21 and the temperature control assembly 3 are connected, the barrel 22 is arranged in the temperature control assembly 3, the barrel 22 is provided with a turnover cover 221, when placing tea, first open the top of the box 1 turnover plate 12, then open the temperature control assembly 3 outside the barrel 22, finally open the buckle 222 on the barrel 22, make the turnover cover 221 open, when the tea is placed, close the turnover cover 221, at the same time, make the turnover cover 221 and the barrel 22 fixed by the buckle 222, avoid the feeding plate open when the barrel 22 rotates, cause the tea fly out, start the motor to drive the shaft 21 rotate when baking starts, the shaft 21 drives the barrel 22 to rotate, the tea placed in the barrel 22 rotates with the barrel 22, in the process of the barrel 22 rotating, the tea and tea, tea and barrel 22 collide slightly, at the same time, the protrusion 223 fixedly installed on the inner wall of the barrel 22 collides with the tea, makes the tea turnover, and the protrusion 223 inside the barrel 22 changes the direction of hot air flow, makes the barrel 22 inside evenly heated, enhances the baking effect, and then realizes the preliminary turnover of tea, the barrel 22 is arrayed with a circular air inlet hole, the hot air in the baking device enters the barrel 22 through the air inlet hole on the barrel 22 to heat the tea, at the same time, when the barrel 22 rotates, can drive the hot air flow, make the temperature of the barrel 22 uniform;

[0031] The opposite side of the rolling barrel 22 fixedly connected with the rotating shaft 21 is provided with a circular mounting hole, and the temperature control assembly 3 is arranged in the rolling barrel 22 through the circular mounting hole. The rolling barrel 22 is internally provided with a shaft sleeve 23 connected with the temperature control assembly 3. The bottom of the shaft sleeve 23 is provided with an internal thread, and a rectangular groove is arranged above the internal thread. The rectangular grooves are equiangularly arranged on the shaft sleeve 23, and the array angle is 90°. The circumferentially arranged rectangular grooves are linearly arranged at equal intervals on the shaft sleeve 23. The turning rods 25 are arranged in the rectangular grooves. The turning rods 25 are obliquely arranged in the rectangular grooves. The turning plate array has four rows. Two rows of the turning rods 25 are symmetrically arranged in an increasing manner. The bottom end of the two rows of turning rods 25 with fixed length is provided with an arc-shaped block. The bottom end of the arc-shaped block is arranged with a strip-shaped protrusion 251. The upper end of the turning rod 25 enters the inside of the shaft sleeve 23 through the rectangular groove. The upper end of the turning rod 25 is provided with a rectangular mounting hole. The rectangular mounting hole is provided with a hinge hole. The upper end of the fixed column is arranged in the rectangular mounting hole of the turning rod 25 and is hinged with the turning rod 25 through the hinge hole. The lower end of the fixed rod 24 is provided with a limiting block 241 connected with the temperature control assembly 3. The limiting rods on the inner walls of the rectangular holes of the shaft sleeve 23 limit the left and right freedom degrees of the fixed rod 24, so that the fixed rod 24 remains stationary. When the temperature of the baking device is higher than the specified baking temperature, the motor drives the temperature control assembly 3 to work in the forward direction. The temperature control assembly 3 drives the shaft sleeve 23 to move forward. At the same time, the shaft sleeve 23 moves forward, and the arrayed rectangular holes on the shaft sleeve 23 press the turning rod 25. The turning rod 25 is pressed forward and swings around the hinge point of the fixed rod 24. The turning rod 25 is opened, the tea leaves in the rolling barrel 22 are turned over, the distance between the tea leaves is increased, the baking effect of the tea leaves is improved, the tea leaves are evenly heated, the turning rod 25 can avoid the accumulation of tea leaves, the hot air cannot flow, the heat dissipation is effectively performed, and part of the tea leaves is baked excessively. The turning rods 25 arranged in two rows in a step-by-step increasing manner guide the flow direction of the hot air, enhance the air speed, accelerate the heat dissipation, and the strip-shaped protrusions 251 at the bottom end of the turning rods 25 with fixed length rub and squeeze the tea leaves on the inner wall of the rolling barrel 22. When the temperature of the baking device is lower than the specified baking temperature, the motor reverses to drive the temperature control assembly 3 to work. The temperature control assembly 3 drives the shaft sleeve 23 to move backward. At this time, the turning rod 25 is no longer pressed by the rectangular groove, and the turning rod 25 starts to reset. The angle between the turning rod 25 and the shaft sleeve 23 is reduced. When the turning rod 25 is in a relaxed state, the turning rod 25 is attached to the shaft sleeve 23. The turning rod 25 is retracted and stops working.

[0032] As Figs. 5-7The transmission shaft 31 is fixedly connected with the motor, the transmission shaft 31 extends into the box body 1 through the mounting hole formed on the motor chamber, the driving spur gear 32 is fixedly connected on the transmission shaft 31, the driving spur gear 32 is installed on the inner wall of the box body 1 and is in rotating contact with the inner wall of the box body 1, the auxiliary spur gear 33 is fixedly installed on the inner wall of the box body 1, the auxiliary spur gear 33 is coaxial with the driving spur gear 32, the gap between the auxiliary spur gear 33 and the driving spur gear 32 forms a rotating cavity, the air inlet and the air outlet are respectively located at the position 60° below the driving spur gear 32, the air inlet and the air outlet are located in the rotating cavity, there are three spur gears in the circumferential array in the rotating cavity, the three spur gears are respectively meshed with the driving spur gear 32 and the auxiliary spur gear 33, the mutual interval angle of the three spur gears is 120°, the three spur gears are respectively rotatingly installed on the inner wall of the box body 1, the three spur gears are respectively the gear ring 38, the heat dissipation gear 39 and the wind blocking gear 310, the gear ring 38 is a gear ring spur gear, the diameter of the gear ring is consistent with the diameter of the air inlet and the air outlet, the circular array through holes are formed on the auxiliary plate of the heat dissipation gear 39, the No. 6 gear is a normal spur gear, the driving spur gear 32, the No. 4 gear 381, the No. 5 gear 382, the No. 6 gear 383 and the auxiliary spur gear 33 form a planetary gear system, the gear ring 38, the heat dissipation gear 39 and the wind blocking gear 310 rotate around the driving spur gear 32, the surfaces of the three spur gears are respectively fixedly connected with the baffles, the surface baffle of the gear ring 38 is a circular ring, the diameter of the circular ring is consistent with the diameter of the gear ring 38, the circular array holes are formed on the baffle of the heat dissipation gear 39, the holes are consistent with the circular array through holes on the auxiliary plate of the heat dissipation gear 39 in size and position, the baffle of the wind blocking gear 310 is a circle and completely matches the wind blocking gear 310;

[0033] When the temperature inside the baking device is lower than the required temperature for baking tea leaves, the motor is reversed, the driving transmission shaft 31 is driven to rotate, the driving spur gear 32 is driven to rotate by the driving transmission shaft 31, the planetary gear system is driven to rotate by the driving spur gear 32, at this time, the gear ring 38 rotates to the air inlet position, hot air is transported into the baking device, the temperature inside the baking device is increased, at the same time, the heat dissipation gear 39 rotates to the air outlet position, hot air is discharged through the through holes on the baffle of the heat dissipation gear 39, at this time, a large amount of hot air flows into the baking device and a small amount of hot air flows out, the temperature inside the baking device slowly rises, the temperature rising too fast is avoided, the required baking temperature of the tea leaves is exceeded, when the temperature inside the baking device is higher than the specified baking temperature, the motor is forward, the driving transmission shaft 31 is driven to rotate, the driving spur gear 32 is driven to rotate by the driving transmission shaft 31, the gear ring 38, the heat dissipation gear 39 and the wind blocking gear 310 are respectively driven to rotate by 120° under the action of the driving spur gear 32 and the auxiliary spur gear 33, at this time, the gear ring 38 rotates away from the air inlet and rotates to the air outlet, the heat dissipation gear 39 rotates away from the air outlet, the wind blocking gear 310 rotates to the air inlet, at this time, the air inlet is completely blocked by the wind blocking gear 310, the air outlet is completely opened by the gear ring 38, the baking device is cooled.

[0034] The surface array of the rotating barrel 34 has circular air inlet holes for hot air to enter the rotating barrel 34. One end of the rotating barrel 34 is connected to the rotating shaft 21, and the other end is connected to the transmission shaft 31. The rotating barrel 34 is internally provided with a rolling barrel 22. The rotating barrel 34 and the rolling barrel 22 are coaxially installed. An installation opening is formed in the end of the rolling barrel 22 away from the rotating shaft 21 and is connected to the transmission shaft 31. The transmission shaft 31 extends into the interior of the rolling barrel 22. The rotating barrel 34 and the rolling barrel 22 form a double-layer structure. Hot air enters the rotating barrel 34 through the surface air inlet holes of the rotating barrel 34 and then enters the interior of the rolling barrel 22 through the surface air inlet holes of the rolling barrel 22 to roast the tea leaves. Part of the hot air is located in the gap between the rotating barrel 34 and the rolling barrel 22. When the motor drives the rolling barrel 22 to rotate, the rolling barrel 22 drives the hot air to flow in the gap between the rolling barrel 22 and the rotating barrel 34, so that the hot air is uniformly distributed. At the same time, the double-layer structure effectively prevents the hot air from being discharged, thereby achieving a heat preservation effect. The rotating barrel 34 is divided into a fixed barrel 341 and a rotating barrel 342. The fixed barrel 341 and the rotating barrel 342 are respectively half-cylindrical. The fixed barrel 341 is located below, and the rotating barrel 342 is located above. The two ends of the rolling barrel 22 and the rotating barrel 34 are respectively provided with circular mounting holes for connection with the rotating shaft 21 and the transmission shaft 31. The fixed barrel 341 is rotatably connected to the rotating shaft 21 and the transmission shaft 31. The rotating barrel 342 is connected to the transmission shaft 31 through gear cooperation. The diameter of the rotating barrel 342 is consistent with the diameter of the inner diameter of the fixed barrel 341. The rotating barrel 342 can be rotated into the inner wall of the fixed barrel 341 and tightly fit with the fixed barrel 341. The driving spur gear 32 is provided with a driving wheel 35 in front. The driving wheel 35 is fixedly connected to the transmission shaft 31. The driving wheel 35 is engaged with the third spur gear 37. The driven wheel 37 is engaged with the fixed wheel 36. The fixed wheel 36 is fixedly connected to the mounting hole of the rotating barrel 342.

[0035] When the temperature in the roasting device is higher than the specified roasting temperature, the motor rotates forward. The motor drives the transmission shaft 31 to rotate. The transmission shaft 31 drives the driving wheel 35 to rotate. The driving wheel 35 starts to engage with the driven wheel 37. The driven wheel 37 starts to engage with the fixed wheel 36. Under the drive of the driving wheel 35, the driven wheel 37 drives the fixed wheel 36 to rotate. The fixed wheel 36 drives the rotating barrel 342 fixedly connected thereto to rotate. The rotating barrel 342 rotates into the fixed barrel 341. The rotating barrel 34 is opened. The rolling barrel 22 leaks out. The hot air in the interior of the rotating barrel 34 flows out. At the same time, the rolling barrel 22 rotates to accelerate the circulation of the hot air. When the temperature is lower than the specified roasting temperature, the motor reverses. The motor drives the transmission shaft 31 to rotate. The transmission shaft 31 drives the driving wheel 35 to rotate. The driving wheel 35 drives the fixed wheel 36 to rotate by driving the driven wheel 37. The fixed wheel 36 drives the rotating barrel 342 fixedly connected thereto to rotate. The rotating barrel 342 rotates out of the fixed barrel 341 and closes the fixed barrel 341. The rotating barrel 34 is closed to keep the hot air in the rotating barrel 34. At the same time, the rolling barrel 22 rotates to drive the internal air to flow, thereby ensuring the uniformity of the temperature and ensuring the uniformity of the tea roasting.

[0036] The transmission shaft 31 is provided with external threads located in front of the driving wheel 35, the bottom end of the external threads is attached to the inner wall of the rolling barrel 22, the transmission shaft 31 is matched with the internal threads at the bottom end of the shaft sleeve 23 to change the rotary motion into linear motion to drive the shaft sleeve 23 to move, when the transmission shaft 31 rotates, the shaft sleeve 23 moves linearly, the external threads are provided with a plurality of limiting grooves 311 in front, the positions of the limiting grooves 311 correspond to the positions of the rectangular holes provided on the shaft sleeve 23, the limiting grooves 311 are formed by rotating a rectangular block and a right-angled triangular block around the transmission shaft 31, the inclined surface of the limiting groove 311 is provided with a sliding groove which is slidably connected with the limiting block 241 at the bottom end of the fixed rod 24, the fixed rod 24 is kept from moving through the sliding connection with the limiting groove 311, thereby ensuring the stability of the turnover assembly 2, when the baking temperature is higher than the specified baking temperature, the motor rotates forward to drive the transmission shaft 31 to rotate, the rotating shaft drives the shaft sleeve 23 matched with the threads to move backward, the shaft sleeve 23 drives the turnover rod 25 to close, when the baking temperature is lower than the specified baking temperature, the motor reverses to drive the transmission shaft 31 to rotate, the transmission shaft 31 drives the shaft sleeve 23 matched with the threads to move forward, the shaft sleeve 23 drives the turnover rod 25 to open.

[0037] When the temperature is higher than the specified baking temperature, the motor rotates forward to drive the transmission shaft 31 to rotate, the transmission shaft 31 simultaneously drives the driving spur gear 32 and the driving wheel 35 to rotate, the driving spur gear 32 drives the planetary gear train to start rotating, at this time, the air outlet is opened, the air inlet is closed, the driving wheel 35 drives the driven wheel 37 and the fixed wheel 36 to start rotating, the rotating barrel 342 of the rotating barrel 34 rotates into the fixed barrel 341, the rotating barrel 34 is opened, and heat is dissipated, under the cooperation of the respective transmission ratios, when the motor stops rotating, the driving spur gear 32 drives the spur gears meshed therewith to rotate 120°, the driving wheel 35 drives the rotating barrel 342 of the rotating barrel 34 to rotate 180°, thereby achieving heat dissipation of the temperature in the baking device, at the same time, when the transmission shaft 31 rotates forward, the external threads on the transmission shaft 31 are matched with the internal threads on the shaft sleeve 23, the shaft sleeve 23 moves forward, when the shaft sleeve 23 moves backward, the turnover rod 25 installed on the shaft sleeve 23 is pressed to rotate around the hinge point of the fixed rod 24, the fixed rod 24 is slidably matched with the limiting groove 311 on the transmission shaft 31 to fix the turnover rod 25 and avoid the turnover rod 25 from deviating, when the motor stops rotating, the turnover rod 25 is completely opened to turn the tea leaves under the cooperation with the rolling barrel and accelerate heat dissipation, when the temperature of the baking device reaches the specified baking temperature, the motor reverses, the transmission shaft 31 drives the driving spur gear 32 and the driving wheel 35 to rotate, the driving spur gear 32 drives the planetary gear train to reset, the driving wheel 35 drives the rotating barrel 342 of the rotating barrel 34 to reset, at this time, the air inlet is opened, the air outlet is slightly exhausted, the rotating barrel 34 is closed, at the same time, the transmission shaft 31 drives the shaft sleeve 23 to move forward, the turnover rod 25 is no longer pressed by the shaft sleeve 23 and starts to slowly retract.

[0038] When the tea leaves need to be baked, the staff opens the top end flap 12 of the box 1, sends the tea leaves into the rolling barrel 22, closes the flap 12, keeps the baking device airtight, at this time the rotating barrel 34 is closed, the air inlet is opened, the inner thread of the shaft sleeve 23 is combined with the outer thread part of the transmission shaft 31, at this time the turnover rod 25 is not pressed by the shaft sleeve 23 and rotates to combine with the shaft sleeve 23, the motor is started, the rotating shaft 21 rotates to drive the rolling barrel 22 fixedly connected thereto to rotate, the rolling barrel 22 drives the tea leaves inside to rotate, the tea leaves are turned over, hot air enters through the air inlet, and at the same time a small amount of hot air flows out, so that the temperature in the baking device gradually increases, and the baking quality of the tea leaves is prevented from being affected by the rapid temperature rise, after a period of time, when the temperature in the baking device is higher than the specified baking temperature, the motor is started, the motor rotates in the positive direction to drive the transmission shaft 31 to rotate, the transmission shaft 31 drives the driving spur gear 32 to rotate, the driving spur gear 32 drives the planetary gear train to rotate, at this time the air inlet is completely closed, and the air outlet is completely opened to cool the baking device, at the same time, the transmission shaft 31 drives the driving wheel 35 to rotate, the driving wheel 35 drives the driven wheel 37 to rotate, the driven wheel 37 drives the fixed wheel 36 to rotate, and the rotating barrel 34 is opened to dissipate heat, at the same time, the transmission shaft 31 and the shaft sleeve 23 are combined with each other in the threaded manner, the shaft sleeve 23 moves forward, the rectangular groove on the shaft sleeve 23 presses the turnover rod 25, the turnover rod 25 is opened to stir the tea leaves in the rolling barrel 22, increase the turning-over amplitude of the tea leaves, make the tea leaves evenly heated, and accelerate heat dissipation to prevent hot air from accumulating between the tea leaves and causing some tea leaves to be overheated.

[0039] When the temperature in the baking device decreases to the specified baking temperature, the motor drives the rolling barrel to rotate, the motor reverses to drive the transmission shaft 31 to rotate, the transmission shaft 31 drives the driving spur gear 32 to reverse, the air inlet is completely opened under the cooperation of the planetary gear train, a small amount of air is exhausted from the air outlet to keep the temperature in the oven, at the same time, the transmission shaft 31 drives the driving wheel 35 to reverse, the rotating barrel 34 is closed under the drive of the driving wheel 35, heat dissipation is completed, the temperature of the rolling barrel 22 is kept, the transmission shaft 31 drives the shaft sleeve 23 to move backward, the turnover rod 25 is no longer pressed by the shaft sleeve 23, the turnover rod 25 is closed and combined with the shaft sleeve 23, after the baking is completed, the top end flap 12 of the box 1 is opened, the rotating barrel 34 is rotated, the feeding plate on the rolling barrel 22 is opened, and the baked tea leaves are taken out.

[0040] The above shows and describes the basic principles and beneficial effects of the present application. Meanwhile, the present application is not limited to the above-mentioned embodiments, and various changes and improvements can be made without departing from the effects and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A tea production tumble roaster comprising a motor, characterised in that: The box is provided with a motor chamber at the front and rear ends, respectively; a turning plate is arranged at the top of the box; an installation hole is arranged at the rear end of the box for installing the turning assembly; an air inlet pipe and an air outlet pipe with a spiral channel inside are arranged on the box; a temperature control assembly is installed at the front end of the box to slow down the flow speed of hot air; the temperature control assembly is externally provided with a turning assembly for changing the direction of hot air by using the temperature difference; The turning assembly comprises a rotating shaft, a rolling barrel, a turning cover, a buckle, a shaft sleeve, a fixed rod and a turning rod; the rotating shaft is connected with the rear side of the box; the inner wall of the rear end of the rolling barrel is connected with the rotating shaft; the rolling barrel is provided with a turning cover; the turning cover is fixedly connected with the rolling barrel through the buckle; the rolling barrel is provided with a circular air inlet hole; the shaft sleeve is connected with the temperature control assembly; the bottom end of the shaft sleeve is provided with an internal thread, and an installation hole is arranged above the internal thread; the shaft sleeve is slidably connected with the fixed rod; the installation hole of the shaft sleeve is installed with the turning rod which is unfolded to realize the linear flow of hot air and is changed into rotary flow by the temperature difference; the turning rod is rotatably connected with the fixed rod; the lower end of the fixed rod is provided with a limiting block for limiting the movement of the fixed rod only with the rotation of the temperature control assembly; the shaft sleeve is annularly provided with four rows of turning rods; the lengths of the turning rods of the two symmetrical rows of the shaft sleeve gradually increase from front to back to guide the spiral flow of hot air; The temperature control assembly comprises a transmission shaft, a driving spur gear, an auxiliary spur gear, a rotating barrel, a driving wheel, a fixed wheel and a driven wheel; an external thread is arranged on the transmission shaft to convert the rotary motion into the linear motion of the shaft sleeve; a limiting groove is arranged above the external thread; the limiting groove is provided with a sliding groove for stabilizing the position of the turning rod to maintain the rotary flow of hot air; the transmission shaft is connected with the driving spur gear; the driving spur gear is externally installed with the auxiliary spur gear to form an adjusting rotary cavity; a plurality of spur gears are arranged between the driving spur gear and the auxiliary spur gear to change the flow of hot air and adjust the baking temperature in the box; the driving spur gear is provided with a driving wheel in front; the driving wheel is connected with the driven wheel; the driven wheel is connected with the fixed wheel; the fixed wheel is connected with the rotating barrel for changing the flow area of hot air by the change of the flow of hot air.

2. A tea production tumbler roaster as claimed in claim 1, wherein: The inner wall of the rolling barrel is installed with a protrusion for changing the flow direction of hot air and enhancing the turning of tea leaves.

3. A tea production tumbler roaster as claimed in claim 1, wherein: The bottom end of the turning rod with a constant length is provided with an arc-shaped block; the bottom end of the arc-shaped block of the turning rod is annularly provided with a stripe protrusion; the stripe protrusion intermittently extrudes the tea leaves in the spiral flow inside the rolling barrel.

4. A tea production tumbler roaster as claimed in claim 1, wherein: The thicknesses of the rolling barrel, the rotating barrel and the box gradually increase, and the heat transfer at the rolling barrel, the rotating barrel and the box gradually decreases.

5. A tea production tumbler roaster as claimed in claim 4, characterised in that: The rotating barrel is composed of a fixed barrel and a rotating barrel; the fixed barrel and the rotating barrel are both annularly provided with circular air vents; the fixed barrel and the rotating barrel are switched between heat preservation and heat dissipation by sensing the temperature change in the rolling barrel.

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