Tea leaf temperature control withering device

Abstract

The invention relates to the technical field of tea leaf processing equipment, and discloses a tea leaf temperature control withering device which comprises a processing box, a hot-air blower, a supporting frame installed at the bottom of the processing box, a box door installed on the inner side of the front end of the processing box in a hinged mode and a temperature sensor installed in the processing box, and the hot-air blower is installed at the top of one side of the supporting frame; a treatment space is arranged in the treatment box, and a U-shaped bracket, a withering frame plate and a gas conveying pipe fitting are sleeved in the treatment space. A multifunctional withering containing structure is composed of a U-shaped support, a withering frame plate and two pressure detection rod pieces, and after the multifunctional withering containing structure is further combined with a hot air output device composed of a first air guide pipe, an air conveying pipe fitting and an air heater, a treatment box and a box door for use subsequently, it can be guaranteed that tea leaves are flatly laid and subjected to hot air withering treatment; the withering degree of the tea leaves is finely reflected by different pressure signal changes generated by the multifunctional withering containing structure due to water loss of the tea leaves, so that the problems in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of tea processing equipment, and particularly to a temperature-controlled withering device for tea greens. Background Art

[0002] The existing withering process generally refers to evenly spreading out tea leaves under certain temperature and humidity conditions, thereby moderately promoting the activity of enzymes in fresh leaves, causing moderate physical and chemical changes in the contained substances, dissipating part of the moisture, making the stems and leaves of the tea leaves wilt, with a dark green color and the loss of the grassy smell, and then creating favorable conditions for subsequent reprocessing.

[0003] Currently, to meet the requirements of batch production, researchers in related fields have disclosed some withering devices mainly using hot air drying. For example, the patent document with the application number CN201220645064.3 discloses "a novel tea green withering device, including a conveyor belt with ventilation holes evenly distributed thereon, side plates and upper plates installed on both sides and above the conveyor belt, a number of blowers evenly distributed on one side of the conveyor belt, control valves installed at the air outlets of the blowers, and electric heating devices installed at the outlets of the control valves. The control valve can control the amount of air entering the conveyor belt. The installation of the side plates can prevent heat dissipation."

[0004] However, in actual processing, for different types of tea leaves, the required withering degrees are different. For example, for white tea, the water content of fresh leaves is required to be reduced to less than 40%, for black tea, the water content is reduced to about 60%, and for oolong tea, the water content is required to be between 68 - 70%. Therefore, if only relying on the heating time in the above existing technology to roughly control the effect, it is impossible to achieve refined control, and thus the withering effect is difficult to be effectively improved. Therefore, in view of the problems existing in the above existing technology, the applicant will provide a temperature-controlled withering device for tea greens to solve the problems. Summary of the Invention

[0005] The present invention provides a temperature-controlled withering device for tea greens, which solves the problems raised in the above background art.

[0006] The present invention provides the following technical solution: A temperature-controlled withering device for tea greens, including a processing box, a hot air blower, a support frame installed at the bottom of the processing box, a box door hingedly installed inside the front end of the processing box, and a temperature sensor installed inside the processing box. The hot air blower is installed at the top on one side of the support frame. A processing space is provided inside the processing box, and a U-shaped bracket, a withering frame plate, and a gas pipeline component are sleeved inside the processing space; Pressure detecting rods are installed on both sides of the withering frame plate, and pressure sensors are arranged inside both of the pressure detecting rods and are respectively slidably installed at both ends of the U-shaped bracket. The pressure sensors can synchronously output pressure signals during the relative sliding of the pressure detecting rods and the U-shaped bracket; The top structure of the gas pipeline component penetrates through the top structure of the processing box and is drivingly connected to a first electric push rod installed on the top of the processing box. A first air duct is installed between the output end of the hot air blower and the top end of the gas pipeline component, and a plurality of output holes facing the withering frame plate are arranged at the bottom of the gas pipeline component.

[0007] Preferably, the withering frame plate is composed of a support frame body and a filter screen fixedly nested inside the bottom of the support frame body; The U-shaped bracket includes a U-shaped support plate body. Columnar guide rods are fixed on both sides of the U-shaped support plate body, and springs are sleeved on the outer sides of the tops of the columnar guide rods; Both of the pressure detection rods include a first sleeve. An I-shaped transmission shaft is respectively clamped inside the first sleeve, and a first electromagnet is fixedly sleeved. The two ends of the I-shaped transmission shaft can be respectively fixed to the corresponding side surfaces of the support frame body and magnetically connected to the magnetic attraction surface of the first electromagnet. One end of the first sleeve is fixed with a second sleeve. The second sleeve can be clamped with the top end of the corresponding columnar guide rod. The pressure sensor is fixedly nested inside the top of the second sleeve and can be in contact connection with the top end of the corresponding columnar guide rod. While the pressure sensor receives the change in the weight of the tea leaves due to withering treatment inside the withering frame plate, it outputs different pressure signals. The two ends of the spring are respectively fixed on the bottom surface of the second sleeve and the top surface of the columnar guide rod.

[0008] Preferably, an inverted U-shaped rod is fixed on the top surface of the pressure sensor housing. One end of the inverted U-shaped rod is magnetically connected to the pressure detection rod and clamped with a guide sleeve. Support plates are installed between the surface of the second electromagnet housing and the surface of the corresponding columnar guide rod, and between the guide sleeve and the surface of the columnar guide rod.

[0009] Preferably, the gas pipeline component includes a main gas transmission cylinder. Twelve extension cylinders are installed along the circumferential direction of the bottom of the main gas transmission cylinder. A plurality of the output ports are arranged at the bottoms of the twelve extension cylinders in an equally divided manner; The two ends of the first air duct are respectively fixedly sleeved inside the top of the main gas transmission cylinder and connected to the output end of the hot air blower. One end of the first air duct close to the top of the main gas transmission cylinder is an elastic folding structure and can perform reciprocating deformation expansion or contraction reset to avoid structural interference.

[0010] Preferably, a drainage component communicating with the internal space of the processing box is installed on one side of the top of the processing box, and a second air duct is installed between the drainage component and the other end of the first air duct; The drainage component includes a drainage cone tube, and a side wall on one side of the top of the treatment box is provided with a clearance hole aligned with the drainage cone tube, and one side of the drainage cone tube is fixed on the side of one side of the top of the treatment box. The interior of the drainage cone tube is sleeved with a composite tube, and a support rod is installed between the surface of the composite tube and the inner wall of the drainage cone tube. The interior of the composite tube is sleeved with a linkage shaft through a bearing, and one end of the linkage shaft passes through the composite tube and is transmission-connected with a fan blade, and the other end of the linkage shaft is fixed with a linkage baffle movably sleeved inside the composite tube, and an air outlet is provided on the inner wall of the end face of the composite tube away from the treatment box, and the two ends of the second air guide pipe are respectively fixedly sleeved on the interior of the composite tube and the inner side of the other end of the first air guide pipe.

[0011] The linkage shaft and the fan blades are both hollow structures and are made of heat-conductive materials, and the internal space of the linkage shaft is connected to the internal space of the fan blades. Under the drive of the linkage shaft, the fan blades can accelerate the air on the inner side of the drainage cone tube close to the treatment box to the end of the drainage cone tube away from the treatment box, and a flange joint is fixed to the end of the drainage cone tube away from the treatment box, thereby satisfying the rotary air supply while maintaining the heat output of the output water vapor.

[0012] The middle parts of the two I-shaped transmission shafts are each equipped with a first gear, the inner side of the bottom of the processing box is equipped with a U-shaped tooth plate, the inner side of the support frame is equipped with a second electric push rod which is transmission-connected to the bottom structure of the U-shaped tooth plate, and the U-shaped tooth plate can be synchronously meshed with the two first gears under the transmission of the second electric push rod, and a clearance space is provided between the U-shaped tooth plate and the two first gears in a non-meshing transmission state to avoid structural interference.

[0013] The bottom inner side of the processing box is provided with a conveyor belt component, and the rear end structure of the processing box is provided with a discharge chute movably connected to the rear end structure of the conveyor belt component. The rear end structure of the processing box is hingedly installed with a sealing adjustment component capable of covering and sealing the discharge chute through a pin shaft, and there is a clearance between the sealing adjustment component and the conveyor belt component. A synchronous meshing transmission structure is provided between one side of the sealing adjustment component and the bottom of the U-shaped tooth plate. Two opposite assembly grooves are formed in the front and rear end structures at the bottom of the processing box. The conveyor belt component includes a conveyor belt body, two conveyor rollers, and a servo motor. The front end structure of the conveyor belt body is clamped and sleeved in the two opposite assembly grooves of the front end structure of the processing box. The rear end structure of the conveyor belt body is clamped and sleeved in the two opposite assembly grooves of the rear end structure of the processing box. And the conveyor belt body is located below the withering frame plate and there is a rotational clearance space between the conveyor belt body and the withering frame plate. The two conveyor rollers are respectively in frictional transmission with the inner sides of the front and rear ends of the conveyor belt body. And the ends of the two conveyor rollers are sleeved with positioning brackets through bearings, and the two positioning brackets are respectively fixed on the front and rear end surfaces of the bottom of the processing box. The output end of the servo motor is in transmission connection with one end of one of the conveyor rollers.

[0014] Preferably, the sealing and adjusting component includes a movable baffle. The top structure of the movable baffle is fixedly sleeved on the middle part of the pin shaft. And both ends of the pin shaft are clamped with auxiliary socket seats installed on the rear end surface of the processing box. One end of the pin shaft is sleeved with a torsion spring. The two ends of the torsion spring are respectively fixed on the surface of one end of the pin shaft and the surface of the corresponding auxiliary socket seat. The combined use of the sealing and adjusting component and the conveyor belt component can cooperate with the turnover discharging effect of the withering frame plate to perform automatic discharging operation on the withered tea leaves.

[0015] Preferably, the synchronous meshing transmission structure includes a second gear and a composite tooth plate. The middle inner side of the second gear is fixedly sleeved on the end of the other end of the pin shaft. The top rear end of the composite tooth plate is a tooth plate structure capable of meshing and transmitting with the second gear. And the other end of the composite tooth plate is fixed on the bottom structure of the U-shaped tooth plate. The front inner side of the composite tooth plate is clamped with a slide rail fixed on the side surface of the processing box. The synchronous meshing transmission structure can enable the sealing and adjusting component to synchronously receive the kinetic energy output by the second electric push rod, thereby meeting the use requirement of the sealing and adjusting component for reciprocatingly and automatically opening and closing the discharging slot.

[0016] The present invention has the following beneficial effects: 1. The present invention forms a multifunctional withering and holding structure through the provided U-shaped bracket, withering frame plate and two pressure detecting rods. After further combined use with the hot air output device composed of the first air duct, air conveying components, hot air blower, processing box, and box door, it can not only ensure that the tea leaves are laid flat for hot air withering treatment, but also finely reflect the withering degree of the tea leaves by the different pressure signal changes generated by the multifunctional withering and holding structure due to the water loss of the tea leaves, so as to solve the problems existing in the prior art.

[0017] 2. The present invention, through the combination of the drainage component and the second air guide pipe with the above-mentioned hot air output device, can synchronously extract the water vapor generated by the withering treatment inside the treatment box, and because the fan blades and the linkage shaft are both hollow structures and are made of heat-conducting materials, the hot air heat of the linkage itself can be synchronously guided to the drained water vapor while reducing the weight of its own structure, thereby achieving a heat drainage effect and further reducing the amount of liquefaction of water vapor caused by temperature changes.

[0018] 3. The present invention comprises a multifunctional auxiliary device composed of a conveyor belt component, a sealing adjustment component, a composite tooth plate, a second gear, a U-shaped tooth plate, a second electric push rod and two first gears. When further combined with a multifunctional withering and placing structure, the withering frame plate can be flipped over to discharge the material while the conveyor belt component is used to perform corresponding automatic output processing, thereby improving the operating efficiency of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view schematic diagram of the structure of the present invention; Figure 2 It is a front view schematic diagram of the structural treatment box of the present invention; Figure 3 It is a top view schematic diagram of the structure of the present invention; Figure 4 It is an enlarged schematic diagram of the U-shaped bracket structure of the present invention; Figure 5 It is an enlarged schematic diagram of the withering frame plate of the present invention; Figure 6 It is a cross-sectional schematic diagram of the pressure-testing rod of the structure of the present invention; Figure 7 It is an enlarged schematic diagram of the inverted U-shaped rod of the structure of the present invention; Figure 8 It is an enlarged schematic diagram of the gas transmission pipe fitting of the present invention; Figure 9 It is a cross-sectional schematic diagram of the drainage component of the structure of the present invention; Figure 10 It is a rear view schematic diagram of the structure of the present invention; Figure 11 It is an enlarged schematic diagram of the conveyor belt component of the structure of the present invention; Figure 12 The structure of the present invention Figure 10 A magnified schematic diagram of point A in the middle; Figure 13 The structure of the present invention Figure 9 Enlarged schematic diagram of point B in the middle.

[0020] In the figure: 1, processing box; 2, box door; 3, hot air blower; 4, support frame; 5, U-shaped bracket; 51, U-shaped support plate body; 52, columnar guide rod; 53, spring; 6, withering frame plate; 7, pressure detection rod; 71, first sleeve; 72, I-shaped transmission shaft; 73, first electromagnet; 74, second sleeve; 75, pressure sensor; 76, inverted U-shaped rod; 77, second electromagnet; 78, guide sleeve; 8, gas pipeline component; 81, main gas transmission cylinder; 82, extension support cylinder; 9, first gas pipeline; 10, first electric push rod; 11, drainage component; 111, drainage cone tube; 112, composite cylinder; 113, linkage shaft; 114, fan blade; 115, linkage baffle; 116, air outlet; 12, second gas pipeline; 13, first gear; 14, U-shaped toothed plate; 15, second electric push rod; 16, conveyor belt component; 161, conveyor belt body; 162, conveyor roller; 163, positioning bracket; 164, servo motor; 17, sealing and adjusting component; 171, movable baffle; 172, torsion spring; 173, auxiliary sleeve seat; 18, composite toothed plate; 19, second gear. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. 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 shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-8 , a temperature-controlled withering device for tea greens, including a processing box 1, a hot air blower 3, a support frame 4 installed at the bottom of the processing box 1, a box door 2 hingedly installed on the inner side of the front end of the processing box 1, and a temperature sensor installed inside the processing box 1. The hot air blower 3 is installed at the top of one side of the support frame 4. A processing space is provided inside the processing box 1, and a U-shaped bracket 5, a withering frame plate 6, and a gas pipeline component 8 are sleeved inside the processing space. Pressure detection rods 7 are installed on both sides of the withering frame plate 6, and pressure sensors 75 are provided inside both of the two pressure detection rods 7 and are respectively slidably installed at both ends of the U-shaped bracket 5. Moreover, the pressure sensors 75 can synchronously output pressure signals during the relative sliding of the pressure detection rods 7 and the U-shaped bracket 5. The top structure of the gas pipeline component 8 penetrates through the top structure of the processing box 1 and is drivingly connected to a first electric push rod 10 installed on the top of the processing box 1; The withering frame plate 6 is composed of a support frame body and a filter screen fixedly nested inside the bottom of the support frame body. The U-shaped bracket 5 includes a U-shaped support plate body 51. Columnar guide rods 52 are fixedly arranged on both sides of the U-shaped support plate body 51, and springs 53 are sleeved on the outer sides of the tops of the columnar guide rods 52. Each of the two pressure detection rods 7 includes a first sleeve 71. An I-shaped transmission shaft 72 is clamped inside the first sleeve 71, and a first electromagnet 73 is fixedly sleeved inside the first sleeve 71. The two ends of the I-shaped transmission shaft 72 can be respectively fixed to the corresponding side surfaces of the support frame body and magnetically connected to the magnetic attraction surface of the first electromagnet 73. One end of the first sleeve 71 is fixedly provided with a second sleeve 74. The second sleeve 74 can be clamped to the top end of the corresponding columnar guide rod 52. A pressure sensor 75 is fixedly nested inside the top of the second sleeve 74 and can be in contact connection with the top end of the corresponding columnar guide rod 52. While the pressure sensor 75 bears the weight of the tea leaves inside the withering frame plate 6 and outputs different pressure signals due to the change in the withering process, the two ends of the spring 53 are respectively fixed to the bottom surface of the second sleeve 74 and the top surface of the columnar guide rod 52. A reverse U-shaped rod 76 is fixed to the top surface of the housing of the pressure sensor 75. One end of the reverse U-shaped rod 76 is magnetically connected to the pressure detection rod 7 and clamped with a guide sleeve 78. Support plates are installed between the surface of the housing of the second electromagnet 77 and the surface of the corresponding columnar guide rod 52, and between the guide sleeve 78 and the surface of the columnar guide rod 52.

[0023] A first air duct 9 is installed between the output end of the hot air blower 3 and the top end of the air duct component 8. A plurality of output holes facing the withering frame plate 6 are arranged at the bottom of the air duct component 8. The air duct component 8 includes a main air delivery cylinder 81. Twelve extension cylinders 82 are installed along the circumferential direction of the bottom of the main air delivery cylinder 81. A plurality of output ports are arranged on the bottoms of the twelve extension cylinders 82 in an equally divided manner. The two ends of the first air duct 9 are respectively fixedly sleeved inside the top of the main air delivery cylinder 81 and connected to the output end of the hot air blower 3. One end of the first air duct 9 close to the top of the main air delivery cylinder 81 is of an elastic folding structure and can perform reciprocating deformation expansion or contraction reset to avoid structural interference.

[0024] During use, the first electromagnet 73 is in the on state, and the second electromagnet 77 is in the off state. The tea leaves to be processed are laid flat on the inner wall of the bottom of the withering frame plate 6. As the tea leaves are continuously laid, the weight of the combination of the withering frame plate 6 and the two pressure detection rods 7 will gradually increase and the combination will move downward accordingly. As the combination of the withering frame plate 6 and the two pressure detection rods 7 moves downward, the two springs 53 arranged on both sides of the U-shaped bracket 5 are deformed under pressure to make way. At the same time, the sensing surface of the pressure sensor 75 will gradually come into contact with the top of the columnar guide rod 52 under pressure and output corresponding pressure data. After a certain amount of tea leaves are laid, record the pressure data finally output by the pressure sensor 75 at this time and use this pressure data as the initial pressure data; Next, the box door 2 is closed, and the first electric push rod 10 is started. The output end of the first electric push rod 10 drives the air delivery pipe 8 to automatically move downward until the twelve extension branches 82 provided at the bottom of the air delivery pipe 8 are close to the top of the withering frame 6 to a suitable position. After completion, the hot air blower 3 is started and the hot air generated by the hot air blower 3 is delivered to the inside of the first air duct 9, and then enters the inside of the main air delivery cylinder 81 through the first air duct 9. Then, the hot air is sprayed to the tea leaves inside the withering frame 6 through the respective output ports at the bottom of the twelve extension branches 82, so as to wither the tea leaves. In the specific process, the temperature inside the processing box 1 will be output in real time by the temperature sensor, which makes it convenient for the user to control the hot air blower 3 for temperature control. The operation here can be achieved by using the existing technical structure of the hot air blower 3. As the moisture inside the tea leaves is continuously converted into water vapor and disappears, the weight of the assembly formed by the withering frame 6 and the two pressure-detecting rods 7 will gradually decrease. Subsequently, under the return force of the two springs 53, the pressure between the sensing surface of the pressure sensor 75 and the cylindrical guide rod 52 will decrease, and the corresponding pressure data will be output. When the difference between the subsequent pressure data and the initial pressure data reaches a specified value, it means that the moisture loss of the tea leaves inside the withering frame 6 has reached a specified level. First turn off the hot air blower 3, and then turn off the first electric push rod 10. The output end of the first electric push rod 10 drives the gas pipe 8 to move up and reset. Then, open the box door 2, take out the withered tea leaves inside the withering frame 6, and then repeat the above steps.

[0025] See also Figures 1-2 、 Figure 9 、 Figure 13 A drainage component 11 communicating with the internal space of the treatment box 1 is installed on one side of the top of the treatment box 1, and a second air guide pipe 12 is installed between the drainage component 11 and the other end of the first air guide pipe 9; The drainage component 11 includes a drainage cone 111. A side wall on one side of the top of the treatment box 1 is provided with a makeshift hole aligned with the drainage cone 111, and one side of the drainage cone 111 is fixed to the side surface of one side of the top of the treatment box 1. A composite cylinder 112 is sleeved inside the drainage cone 111, and a support rod is installed between the surface of the composite cylinder 112 and the inner wall of the drainage cone 111. A linkage shaft 113 is sleeved inside the composite cylinder 112 through a bearing, and one end of the linkage shaft 113 passes through the composite cylinder 112 and is transmission-connected to a fan blade 114. The other end of the linkage shaft 113 is fixed with a linkage baffle 115 movably sleeved inside the composite cylinder 112, and an air outlet 116 is provided on the inner wall of the end face of the composite cylinder 112 away from the treatment box 1. The two ends of the second air guide pipe 12 are respectively fixedly sleeved on the interior of the composite cylinder 112 and the inner side of the other end of the first air guide pipe 9; The linkage shaft 113 and the fan blade 114 both adopt a hollow structure and are made of heat-conducting materials. Moreover, the internal spaces of the linkage shaft 113 and the fan blade 114 are interconnected. Driven by the linkage shaft 113, the fan blade 114 can accelerate the air inside the inner side of one end of the drainage cone tube 111 close to the treatment box 1 and convey it to the other end of the drainage cone tube 111 far from the treatment box 1. A flange joint is fixed at the end of the drainage cone tube 111 far from the treatment box 1, thereby satisfying the rotation for air delivery while maintaining the heat of the output water vapor for output.

[0026] During use, considering that excessive water vapor inside the treatment box 1 may cause liquefaction as the usage time extends, structures such as the second air duct 12 and the drainage component 11 are used to link and synchronously extract the water vapor generated during the withering treatment inside the treatment box 1 by means of the hot air blower 3 and the first air duct 9. The specific principle is as follows: During the process of the hot air blower 3 delivering hot air to the first air duct 9, part of the hot air will enter the composite cylinder 112 inside the drainage component 11 through the second air duct 12, and then repeatedly impact the linkage baffle 115 connected to the end of the composite cylinder 112. Subsequently, the linkage baffle 115 drives the fan blade 114 to rotate synchronously under the support of the composite cylinder 112. After rotation, the fan blade 114 will automatically drain the air inside the treatment box 1, including water vapor, to the outside through the drainage cone tube 111, avoiding excessive accumulation of water vapor inside the treatment box 1 and reducing the liquefaction amount of water vapor inside the treatment box 1; Furthermore, since both the fan blade 114 and the linkage shaft 113 are of hollow structure and are made of heat-conducting materials, the heat of the hot air linked to themselves can be synchronously conducted to the drained water vapor while reducing the weight of their own structures, thereby achieving the effect of heat drainage and further reducing the liquefaction amount of water vapor caused by temperature changes.

[0027] Please refer to Figures 1-2 、 Figures 10-12 As shown in, a first gear 13 is sleeved on the middle parts of both I-shaped transmission shafts 72. A U-shaped toothed plate 14 is sleeved on the inner side of the bottom of the treatment box 1. A second electric push rod 15 whose bottom structure is in transmission connection with the U-shaped toothed plate 14 is sleeved on the inner side of the support frame 4. The U-shaped toothed plate 14 can be synchronously meshed and driven with the two first gears 13 under the drive of the second electric push rod 15. A clearance space is provided between the U-shaped toothed plate 14 and the two first gears 13 in the non-meshing transmission state to avoid structural interference. A conveyor belt component 16 is sleeved on the inner side of the bottom of the treatment box 1. An outlet groove which is movably sleeved with the rear-end structure of the conveyor belt component 16 is provided in the rear-end structure of the treatment box 1. A sealing and adjusting component 17 which can cover and seal the outlet groove is hinged and installed on the rear-end structure of the treatment box 1 by a pin shaft. A clearance gap exists between the sealing and adjusting component 17 and the conveyor belt component 16. A synchronous meshing and driving structure is provided between one side of the sealing and adjusting component 17 and the bottom of the U-shaped toothed plate 14; Two opposite assembly grooves are provided in the front and rear end structures at the bottom of the processing box 1. The conveyor belt component 16 includes a conveyor belt body 161, two conveyor rollers 162, and a servo motor 164. The front end structure of the conveyor belt body 161 is snap-fitted and sleeved with the two opposite assembly grooves in the front end structure of the processing box 1, and the rear end structure of the conveyor belt body 161 is snap-fitted and sleeved with the two opposite assembly grooves in the rear end structure of the processing box 1. Moreover, the conveyor belt body 161 is located below the withering frame plate 6 and there is a rotational clearance space between the conveyor belt body 161 and the withering frame plate 6. The two conveyor rollers 162 are respectively in frictional transmission with the inner sides of the front and rear ends of the conveyor belt body 161. The ends of the two conveyor rollers 162 are respectively sleeved with positioning brackets 163 through bearings, and the two positioning brackets 163 are respectively fixed on the front and rear end surfaces of the bottom of the processing box 1. The output end of the servo motor 164 is in transmission connection with one end of one of the conveyor rollers 162; The sealing and adjusting component 17 includes a movable baffle 171. The top structure of the movable baffle 171 is fixedly sleeved with the middle part of a pin shaft. Both ends of the pin shaft are snap-fitted with auxiliary socket seats 173 installed on the rear end surface of the processing box 1. One end of the pin shaft is sleeved with a torsion spring 172, and both ends of the torsion spring 172 are respectively fixed on the surface of one end of the pin shaft and the surface of the corresponding auxiliary socket seat 173. The combined use of the sealing and adjusting component 17 and the conveyor belt component 16 can cooperate with the turnover and discharging effect of the withering frame plate 6 to perform an automatic discharging operation on the withered tea. The synchronous meshing transmission structure includes a second gear 19 and a composite tooth plate 18. The middle inner side of the second gear 19 is fixedly sleeved on the end of the other end of the pin shaft. The top rear end of the composite tooth plate 18 is a tooth plate structure capable of meshing and transmitting with the second gear 19, and the other end of the composite tooth plate 18 is fixed on the bottom structure of the U-shaped tooth plate 14. The front inner side of the composite tooth plate 18 is snap-fitted with a slide rail fixed on the side surface of the processing box 1. The synchronous meshing transmission structure can enable the sealing and adjusting component 17 to synchronously receive the kinetic energy output by the second electric push rod 15, thereby meeting the use requirement of the sealing and adjusting component 17 for reciprocatingly and automatically opening and closing the discharge chute.

[0028] During use, considering that if the subsequent batch processing of tea fabrics and material taking are both manually operated, it may lead to the problem of low operation efficiency. The conveyor belt component 16 and related structures are used for automatic material taking operation, specifically as follows: After the tea leaves inside the withering frame plate 6 are completely withered, turn off the first electromagnet 73 and turn on the second electromagnet 77. The second electromagnet 77 magnetically limits the inverted U-shaped rod 76. Start the second electric push rod 15. The output end of the second electric push rod 15 drives the U-shaped tooth plate 14 to move upward automatically. Then, the U-shaped tooth plate 14 synchronously meshes and drives the two first gears 13. Then, the two first gears 13 drive the withering frame plate 6 to rotate synchronously through the corresponding I-shaped transmission shafts 72. As the rotation inclination angle of the withering frame plate 6 gradually increases, the tea leaves inside the withering frame plate 6 will gradually fall onto the top surface in the middle of the conveyor belt body 161; During the upward movement of the U-shaped tooth plate 14, it will drive the composite tooth plate 18 to synchronously mesh and drive the second gear 19. Then, the second gear 19 drives the movable baffle 171 to rotate synchronously through the pin shaft. Then, the movable baffle 171 rotates synchronously outside the rear end of the processing box 1, vacating the space of the discharge chute. Subsequently, start the servo motor 164. The servo motor 164 rotates through the corresponding conveyor rollers 162. Then, the two conveyor rollers 162 frictionally drive the conveyor belt body 161. The conveyor belt body 161 automatically outputs the withered tea leaves poured out of the withering frame plate 6 from the inside of the processing box 1; After the conveyor belt body 161 finishes outputting, turn off the servo motor 164. At the same time, turn off the second electric push rod 15. The output end of the second electric push rod 15 drives the U-shaped tooth plate 14 to move downward automatically. At the same time, the U-shaped tooth plate 14 meshes and drives the two first gears 13 to flip the withering frame plate 6 back to its original position. At the same time, the composite tooth plate 18 meshes and drives the second gear 19 to flip the movable baffle 171 back to its original position. After completion, open the box door 2 and spread the tea leaves to be processed evenly inside the withering frame plate 6. Then, turn on the first electromagnet 73 and turn off the second electromagnet 77 to wait for the withering process in the next cycle.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present invention, the filling pattern is only for distinguishing layers and is not limited in any other way.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tea green temperature-controlled withering device, comprising a processing box (1), a hot air blower (3), a support frame (4) installed at the bottom of the processing box (1), a box door (2) hingedly installed on the inner side of the front end of the processing box (1), and a temperature sensor installed inside the processing box (1). The hot air blower (3) is installed at the top on one side of the support frame (4), and is characterized in that: The interior of the processing box (1) is provided with a processing space, and a U-shaped bracket (5), a withering frame plate (6), and an air pipe component (8) are sleeved in the processing space; Pressure detection rods (7) are installed on both sides of the withering frame plate (6), and pressure sensors (75) are arranged in the two pressure detection rods (7) and are respectively slidably installed at both ends of the U-shaped bracket (5), and the pressure sensors (75) can synchronously output pressure signals during the relative sliding of the pressure detection rods (7) and the U-shaped bracket (5); The top structure of the air pipe component (8) penetrates through the top structure of the processing box (1) and is drivingly connected to a first electric push rod (10) installed on the top of the processing box (1). A first air guide pipe (9) is installed between the output end of the hot air blower (3) and the top end of the air pipe component (8), and a plurality of output holes facing the withering frame plate (6) are arranged at the bottom of the air pipe component (8).

2. The temperature-controlled withering device for tea greens according to claim 1, wherein: The withering frame plate (6) is composed of a support frame body and a filter screen fixedly nested inside the bottom of the support frame body; The U-shaped bracket (5) includes a U-shaped support plate body (51). Columnar guide rods (52) are fixed on both sides of the U-shaped support plate body (51), and springs (53) are sleeved on the outer sides of the tops of the columnar guide rods (52); The two pressure detection rods (7) both include a first sleeve (71). An I-shaped transmission shaft (72) and a first electromagnet (73) fixedly sleeved are respectively clamped inside the first sleeve (71). The two ends of the I-shaped transmission shaft (72) can be respectively fixed to the corresponding side surfaces of the support frame body and magnetically connected to the magnetic attraction surface of the first electromagnet (73). One end of the first sleeve (71) is fixed with a second sleeve (74). The second sleeve (74) can be clamped with the top end of the corresponding columnar guide rod (52). The pressure sensor (75) is fixedly nested inside the top of the second sleeve (74) and can be in contact connection with the top end of the corresponding columnar guide rod (52). The pressure sensor (75) outputs different pressure signals while the weight of the tea leaves received inside the withering frame plate (6) changes due to withering treatment. The two ends of the spring (53) are respectively fixed on the bottom surface of the second sleeve (74) and the top surface of the columnar guide rod (52).

3. The tea green temperature-controlled withering device according to claim 2, characterized in that: A reverse U-shaped rod (76) is fixed on the top surface of the housing of the pressure sensor (75). One end of the reverse U-shaped rod (76) is respectively magnetically connected to the pressure detection rod (7) and clamped with a guide sleeve (78). Support plates are installed between the surface of the housing of the second electromagnet (77) and the surface of the corresponding columnar guide rod (52), and between the guide sleeve (78) and the surface of the columnar guide rod (52).

4. A tea green temperature-controlled withering device according to claim 1, characterized in that: The air pipe component (8) includes a main air delivery cylinder (81). Twelve extension cylinders (82) are installed along the circumference of the bottom of the main air delivery cylinder (81). A plurality of the output ports are arranged on the bottoms of the twelve extension cylinders (82) in an equally divided manner; The two ends of the first air guide tube (9) are respectively fixedly sleeved on the inner side of the top of the main air cylinder (81) and connected to the output end of the hot air blower (3); the end of the first air guide tube (9) close to the top of the main air cylinder (81) is an elastic folding structure and can be reciprocated to deform, expand, or shrink and reset.

5. The tea green temperature-controlled withering device according to claim 1, characterized in that: A drainage component (11) communicating with the internal space of the treatment box (1) is installed on one side of the top of the treatment box (1), and a second air guide pipe (12) is installed between the drainage component (11) and the other end of the first air guide pipe (9); The drainage component (11) includes a drainage cone (111), a side wall on one side of the top of the treatment box (1) is provided with a clearance hole aligned with the drainage cone (111), and one side of the drainage cone (111) is fixed to the side surface on one side of the top of the treatment box (1), the interior of the drainage cone (111) is sleeved with a composite tube (112), and a support rod is installed between the surface of the composite tube (112) and the inner wall of the drainage cone (111), and the interior of the composite tube (112) is sleeved with a coupling through a bearing. A driving shaft (113) is provided, and one end of the linkage shaft (113) passes through the composite cylinder (112) and is transmission-connected to a fan blade (114); the other end of the linkage shaft (113) is fixed with a linkage baffle (115) that is movably sleeved inside the composite cylinder (112); and an air outlet (116) is provided on the inner wall of the end face of the composite cylinder (112) away from the treatment box (1); and the two ends of the second air guide pipe (12) are respectively fixedly sleeved inside the composite cylinder (112) and the inner side of the other end of the first air guide pipe (9).

6. The temperature-controlled withering device for tea greens according to claim 5, wherein: The linkage shaft (113) and the fan blade (114) both have a hollow structure and are made of heat-conducting material, and the internal space of the linkage shaft (113) is communicated with the internal space of the fan blade (114). The fan blade (114) is driven by the linkage shaft (113) to accelerate the air inside the end of the drainage cone tube (111) close to the treatment box (1) to the end of the drainage cone tube (111) away from the treatment box (1), and a flange joint is fixed to the end of the drainage cone tube (111) away from the treatment box (1).

7. The temperature-controlled withering device for tea greens according to claim 2, wherein: The middle parts of the two I-shaped transmission shafts (72) are both provided with a first gear (13), the inner side of the bottom of the processing box (1) is provided with a U-shaped tooth plate (14), the inner side of the support frame (4) is provided with a second electric push rod (15) which is connected to the bottom structure of the U-shaped tooth plate (14), and the U-shaped tooth plate (14) can be synchronously meshed with the two first gears (13) under the transmission of the second electric push rod (15), and a clearance space is provided between the U-shaped tooth plate (14) and the two first gears (13) in a non-meshing transmission state.

8. The temperature-controlled withering device for tea greens according to claim 1, wherein: Inside the bottom of the processing box (1), a conveyor belt component (16) is sleeved, and a discharge chute that is movably sleeved with the rear end structure of the conveyor belt component (16) is provided in the rear end structure of the processing box (1). The rear end structure of the processing box (1) is hinged and installed with a sealing and adjusting component (17) that can cover and seal the discharge chute, and there is a clearance space between the sealing and adjusting component (17) and the conveyor belt component (16). A synchronous meshing and transmission structure is provided between one side of the sealing and adjusting component (17) and the bottom of the U-shaped tooth plate (14). Two opposite assembly grooves are provided in the front and rear end structures inside the bottom of the processing box (1). The conveyor belt component (16) includes a conveyor belt body (161), two conveyor rollers (162), and a servo motor (164). The front end structure of the conveyor belt body (161) is snap-fitted and sleeved with two opposite assembly grooves in the front end structure of the processing box (1). The rear end structure of the conveyor belt body (161) is snap-fitted and sleeved with two opposite assembly grooves in the rear end structure of the processing box (1), and the conveyor belt body (161) is located below the withering frame plate (6) and there is a rotational clearance space between the conveyor belt body (161) and the withering frame plate (6). The two conveyor rollers (162) are respectively in frictional transmission with the inner sides of the front and rear ends of the conveyor belt body (161), and positioning brackets (163) are sleeved on the ends of the two conveyor rollers (162) through bearings, and the two positioning brackets (163) are respectively fixed on the front and rear end surfaces of the bottom of the processing box (1). The output end of the servo motor (164) is in transmission connection with one end of one of the conveyor rollers (162).

9. The tea green temperature-controlled withering device according to claim 8, characterized in that: The sealing and adjusting component (17) includes a movable baffle (171). The top structure of the movable baffle (171) is fixedly sleeved with the middle part of the pin shaft, and auxiliary socket seats (173) installed on the rear end surface of the processing box (1) are snap-fitted at both ends of the pin shaft. A torsion spring (172) is sleeved on one end of the pin shaft, and both ends of the torsion spring (172) are respectively fixed on the surface of one end of the pin shaft and the surface of the corresponding auxiliary socket seat (173).

10. A tea green temperature-controlled withering device according to claim 8, characterized in that: The synchronous meshing and transmission structure includes a second gear (19) and a composite tooth plate (18). The middle inner side of the second gear (19) is fixedly sleeved on the end of the other end of the pin shaft. The top rear end of the composite tooth plate (18) is a tooth plate structure that can be meshed and transmitted with the second gear (19), and the other end of the composite tooth plate (18) is fixed on the bottom structure of the U-shaped tooth plate (14). The front inner side of the composite tooth plate (18) is snap-fitted with a slide rail fixed on the side surface of the processing box (1).

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