Tea leaf tedding and rolling integrated automatic production line

Abstract

The invention relates to the technical field of tea leaf processing, in particular to a tea leaf tedding and rolling integrated automatic production line which comprises a tedding machine, a feeding conveying belt, a fixation machine, a rolling machine and a feeding belt. The tea leaf tedding and withering device can solve the following problems in the tea leaf processing process in the prior art: tedding or withering of tea leaves cannot be adjusted according to the processing modes of different varieties of tea leaves, processing of various varieties of tea leaves can be realized by using different equipment, and the efficiency is influenced; air cannot be blown to the tea leaves, so that the tedding or withering time of the tea leaves is prolonged, and the tedding or withering efficiency and quality of the tea leaves are further influenced; the tea processing device can be used for processing green tea, raw dark green tea and black tea, equipment and workshops do not need to be replaced, the processing mode can be adaptively adjusted according to the tea variety, and the tea processing efficiency can be improved; natural air or hot air conveyed into the tedding machine can be adjusted according to actual requirements, and then the tedding or withering efficiency and quality of tea leaves are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tea processing, in particular to an automatic production line integrating spreading and rolling of tea leaves. Background Art

[0002] Traditional tea is generally divided into green tea, black tea and dark tea. When processing tea, it needs to go through the processing techniques of spreading, withering, rolling, deblocking, drying and frying in sequence. The difference is that green tea and dark tea need to be withered at high temperature before rolling after spreading naturally, while black tea only needs to be withered with hot air and can be rolled without withering.

[0003] Since green tea, black tea and black tea have different processing techniques, the current tea processing production line needs to use different equipment or share some equipment to process green tea, black tea and black tea, and they are not processed in the same workshop. Therefore, the labor intensity of manual operation is high and the production efficiency is correspondingly low.

[0004] The prior art also discloses technical solutions for tea processing. For a more accurate comparison, a Chinese patent with publication number CN115553348A discloses a withering and spreading device for tea processing, including a withering mechanism, which includes a withering bin. The withering mechanism is equipped with a plurality of supporting components for carrying tea leaves, and the supporting components include a placing frame and a spreading roller movably installed in the placing frame. A closed-loop conveying mechanism for driving the plurality of placing frames to rotate in a cycle is provided on the bottom inner wall of the withering mechanism. During the cyclic rotation of the plurality of placing frames, the front and rear positions are replaced in sequence, and the placing frame at the bottom will tilt when it rises.

[0005] During use, the above-mentioned existing technology drives multiple supporting components to rotate in a closed loop through a closed-loop conveying mechanism. Therefore, during the process of conveying tea leaves, the tea leaves on each supporting component can be fully exposed to light and air, thereby ensuring that the withering state of the tea leaves on each supporting component remains consistent.

[0006] However, the above-mentioned prior art still has some shortcomings in the process of processing tea leaves: 1. Since green tea and black tea need to be spread, withered and rolled in sequence, and black tea is rolled directly after withering, different teas require different processing methods. The above-mentioned existing technology can only realize the illumination and withering of tea leaves, and cannot be adjusted according to the processing methods of different varieties of tea. Different equipment is needed to realize the processing of multiple varieties of tea, which affects efficiency and wastes costs.

[0007] 2. In addition, green tea and black tea require natural wind to speed up the spreading efficiency during the spreading process, while black tea requires hot air withering. However, the above-mentioned existing technology cannot blow air to the tea leaves, resulting in an increase in the spreading or withering time of the tea leaves, further affecting the spreading or withering efficiency and quality of the tea leaves.

[0008] Therefore, based on the above-stated views, there is still room for improvement in existing tea processing methods. Summary of the Invention

[0009] In order to solve the above problems, the present invention provides an integrated automatic production line for spreading and rolling tea leaves, including a spreading machine for spreading green tea and black tea and withering black tea, and a feeding port for pouring tea leaves is provided on either side of the spreading machine; a loading conveyor belt is provided on the side of the spreading machine close to the feeding port, for conveying the tea leaves into the spreading machine through the feeding port; a fixing machine, a fixing machine for fixing green tea and black tea is installed on one side of the spreading machine; a rolling machine is provided on one side of the fixing machine, for rolling the green tea, black tea and black tea after fixing; a feeding belt is installed inside the spreading machine and connected to the outside, the feeding belt has two groups and is respectively connected to the fixing machine and the rolling machine, for conveying the green tea and black tea after spreading into the fixing machine, and conveying the black tea after withering directly into the rolling machine.

[0010] As a preferred technical solution of the present invention, the green spreading machine includes a shell, two conveyor belts are installed on the upper side of the shell, and the inner wall of the conveyor belt is equipped with a rotating shaft rotatably arranged on the inner wall of the shell; A discharge conveyor belt is installed on the lower side of the inner shell, and a support shaft rotatably installed on the inner wall of the discharge conveyor belt is provided on the inner wall of the shell. A driving motor connected to any support shaft is provided on the side wall of the shell through a motor cover, and a conversion unit for discharging the tea leaves after spreading or withering to the upper ends of different feeding belts is provided between the discharge conveyor belt and the shell.

[0011] As a preferred technical solution of the present invention, gears meshing with each other are provided between the two adjacent rotating shafts on the inner walls of the two conveyor belts, and the rotating shaft on the inner wall of the upper conveyor belt and the supporting shaft on the inner wall of the discharge conveyor belt are connected by a belt drive.

[0012] As a preferred technical solution of the present invention, an air inlet is provided on one side of the housing near the feed port, and a cover connected to the multiple air inlets is installed on the side wall of the housing. An air pump is provided on one side of the housing, and the output end of the air pump is connected to the cover through a connecting pipe. A heat recovery pipe is installed inside the fixing machine. The input end of the air pump and the heat recovery pipe are connected in a detachable manner. A water tank is installed on one side of the air pump, and the connecting pipe is placed inside the water tank.

[0013] As a preferred technical solution of the present invention, the conversion unit includes a movable shaft installed on the inner wall of the discharge conveyor belt away from the feed port, an actuator component for driving the discharge conveyor belt to bend is arranged between the outer shell and the movable shaft, a positioning shaft located at the lower end of the discharge conveyor belt is rotatably installed on the inner wall of the outer shell, and a tensioning component for tensioning the discharge conveyor belt is arranged on the inner wall of the outer shell.

[0014] As a preferred technical solution of the present invention, the execution component includes a receiving hopper mounted on the outer wall of the movable shaft, the upper half of the receiving hopper is a horizontal U-shaped structure, the lower half of the receiving hopper is a rectangular cylindrical structure for guiding tea leaves to the feeding belt, and the receiving hopper cover is arranged on the side of the discharge conveyor belt away from the feed port.

[0015] As a preferred technical solution of the present invention, the side wall of the outer shell is provided with a plurality of cylinders connected to the receiving hopper, the side wall of the receiving hopper is provided with a displacement groove for the movable shaft to slide up and down, the inner wall of the outer shell is provided with an arc-shaped slide groove, the two ends of the movable shaft slide and dock in the arc-shaped slide groove, and the inner wall of the outer shell is provided with a horizontal slide groove, and the outer wall of the receiving hopper is installed with a linkage block that slides and docks in the horizontal slide groove.

[0016] As a preferred technical solution of the present invention, the tensioning assembly includes a support plate installed on the inner wall of the outer shell and located below the discharge conveyor belt. The upper end of the support plate is installed with a support frame through a plurality of support spring rods equidistantly distributed along its length direction. The support frame is rotatably provided with a tensioning wheel that rolls and abuts against the lower end of the discharge conveyor belt.

[0017] As a preferred technical solution of the present invention, two discharge belts are provided on the side of the feeding belt away from the spreading machine, and the discharge belts are located below the feeding belt. The two discharge belts are used to transport the tea leaves to the withering machine and the rolling machine respectively.

[0018] As a preferred technical solution of the present invention, it also includes an inclined conveyor belt, which has two groups. The output ends of the two inclined conveyor belts are both located at the feed of the rolling machine. The receiving end of one of the inclined conveyor belts is located below the discharge belt for conveying black tea, and the receiving end of the other inclined conveyor belt is located at the discharge of the withering machine for receiving the green tea and dark tea that have been withered.

[0019] In summary, this application has the following beneficial technical effects: 1. The present invention can be used for the processing of green tea, dark tea and black tea without replacing equipment and workshops, and can adaptively adjust the processing method according to the tea variety, thereby effectively improving the production and processing efficiency of tea.

[0020] 2. The present invention can speed up the spreading efficiency of green tea and black tea by delivering natural wind into the spreading machine through an air pump, avoid squeezing of green tea and black tea due to long-term storage, and thus ensure the quality of green tea and black tea. By recovering the heat in the withering machine and delivering hot air into the spreading machine, it can be used to wither black tea, so that the natural wind or hot air delivered to the spreading machine can be adaptively adjusted according to actual needs, thereby improving the spreading or withering efficiency and quality of tea leaves.

[0021] 3. The present invention adjusts the position of the receiving hopper so that it is located at the upper end of different feeding belts, so that the black tea can be discharged and directly transported to the rolling machine, and the green tea and black tea can be discharged and transported to the withering machine for withering. Therefore, the discharge position can be adaptively adjusted according to different teas, so that the spreading and rolling of the tea leaves are automated, thereby improving work efficiency.

[0022] 4. When the present invention transports the tea leaves into the spreading machine through the loading conveyor belt, the fixed shaft drives the executive shaft to rotate, and the executive shaft drives the linkage ring to rotate synchronously. Through the mutual cooperation between the linkage ring and the buckle, the displacement sleeve and the dividing tooth plate can be driven to move back and forth along the axial direction of the executive shaft as a whole. The dividing tooth plate can be used to spread the accumulated tea leaves in a scraping manner to ensure that the tea leaves transported to the spreading machine are evenly spread, and further ensure that the natural wind or hot air transported to the spreading machine can fully spread or wither the tea leaves, avoiding the accumulation of tea leaves affecting the spreading or withering efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and examples.

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 It is a schematic diagram of the internal structure of the shell of the present invention.

[0026] Figure 3 It is a schematic diagram of the structure among the conveyor belt, rotating shaft, discharge conveyor belt and support shaft of the present invention.

[0027] Figure 4 It is a schematic structural diagram of the discharge conveyor belt, support shaft and conversion unit of the present invention.

[0028] Figure 5 This invention Figure 4 A partial enlarged view of point A.

[0029] Figure 6 It is a schematic diagram of the structure between the housing, the discharging conveyor belt and the receiving hopper of the present invention.

[0030] Figure 7 It is a structural diagram of the discharge conveyor belt, movable shaft and execution assembly of the present invention.

[0031] Figure 8 This is a working state diagram between the discharge conveyor belt, movable shaft and execution assembly of the present invention.

[0032] Figure 9 It is a structural schematic diagram of the feeding conveyor belt, bracket and positioning plate of the present invention.

[0033] Figure 10 This invention Figure 9 A partial enlarged view of point B.

[0034] In the figure, 1, green spreading machine; 11, shell; 111, cover; 112, air pump; 113, connecting pipe; 114, heat recovery pipe; 115, water tank; 12, conveyor belt; 13, rotating shaft; 14, discharge conveyor belt; 15, support shaft; 16, drive motor; 17, conversion unit; 171, movable shaft; 172, executive assembly; 173, positioning shaft; 174, tensioning assembly; 175, receiving hopper; 176, cylinder; 177, displacement slot; 178, elastic barrier; 17 9. Arc chute; 180. Horizontal chute; 181. Linkage block; 182. Support plate; 183. Support spring rod; 184. Support frame; 185. Tensioner; 19. Gear; 2. Feeding conveyor belt; 21. Bracket; 22. Fixed shaft; 23. Positioning plate; 24. Executive shaft; 25. Displacement sleeve; 26. Return spring rod; 27. Linkage ring; 28. Buckle; 29. Material dividing tooth plate; 3. Withering machine; 4. Kneading machine; 5. Feeding belt; 51. Discharge belt; 6. Inclined conveyor belt. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-10 The embodiments of the present invention are described in detail.

[0036] The embodiment of the present application discloses an integrated automatic production line for spreading and kneading tea leaves. It should be noted that the integrated automatic production line for spreading and kneading tea leaves of the present application is mainly used in the process of spreading and kneading tea leaves. In terms of technical effect, it can be used for the processing of green tea, dark tea and black tea without changing equipment and workshops, and the processing method can be adaptively adjusted according to the variety of tea leaves, thereby effectively improving the production and processing efficiency of tea leaves; especially when spreading or withering tea leaves, natural wind or hot air can be respectively delivered to green tea, dark tea and black tea, which can improve the spreading or withering efficiency and quality of tea leaves; further, the integrated automatic production line for spreading and kneading tea leaves of the present application can also directly deliver black tea to the rolling machine 4 after discharging, and deliver green tea and dark tea to the withering machine 3 for withering after being discharged, so as to adaptively adjust the discharge position according to different tea leaves, so that the spreading and kneading of tea leaves is automated. Example

[0037] Reference Figure 1 As shown, an integrated automatic production line for spreading and rolling tea leaves comprises a tea spreading machine 1 for spreading green tea and black tea and withering black tea. A feed port for pouring tea leaves is provided on either side of the tea spreading machine 1; a feeding conveyor belt 2 is provided on the side of the tea spreading machine 1 close to the feed port, the side of the feeding conveyor belt 2 away from the tea spreading machine 1 gradually slopes downward, and the end of the feeding conveyor belt 2 away from the tea spreading machine 1 is a feeding area for conveying tea leaves through the feed port into the tea spreading machine 1; A fixing machine 3 for fixing green tea and black tea is installed on one side of the spreading machine 1; a rolling machine 4 is arranged on one side of the fixing machine 3, for rolling the green tea, black tea and black tea after withering; a feeding belt 5 is installed inside the spreading machine 1 and connected to the outside, and the feeding belt 5 has two groups and is respectively connected to the fixing machine 3 and the rolling machine 4, for conveying the green tea and black tea after spreading into the fixing machine 3, and conveying the black tea after withering directly to the rolling machine 4.

[0038] During the specific work, the tea leaves to be processed are first poured into the feeding area, and the tea leaves are transported to the inside of the spreading machine 1 through the feeding conveyor belt 2. The green tea and black tea are spread through the spreading machine 1, or the black tea is withered. At the same time, the withering machine 3 is started for preheating, and then the green tea, black tea or black tea in the spreading machine 1 is transported out of the spreading machine 1 through the feeding belt 5, and the green tea and black tea are transported to the withering machine 3 for withering treatment, or the black tea is transported to the rolling machine 4 for rolling treatment, so as to realize the integration of spreading and rolling of green tea, black tea and black tea.

[0039] Continue to refer to Figure 1 As shown, in order to facilitate the transportation of the tea leaves in the spreading machine 1 to the outside, in this embodiment, two discharge belts 51 are provided on the side of the feeding belt 5 away from the spreading machine 1. The discharge belt 51 is located below the feeding belt 5 and is used to receive the tea leaves. The feeding belt 5 has a drive, and the discharge belt 51 and the feeding belt 5 are connected by a belt. The two discharge belts 51 are used to transport the tea leaves to the fixing machine 3 and the rolling machine 4 respectively. The tea leaves that have been spread or withered are discharged under the action of the feeding belt 5 and fall onto the discharge belt 51. The green tea and black tea after spreading can be transported to the fixing machine 3 through the discharge belt 51, and the black tea after withering can be transported to the rolling machine 4.

[0040] Furthermore, in this embodiment, in order to facilitate the direct delivery of black tea to the rolling machine 4 and the delivery of green tea and dark tea to the withering machine 3, an inclined conveyor belt 6 is also provided in this embodiment. The inclined conveyor belt 6 has two groups, and the output ends of the two inclined conveyor belts 6 are both located at the feed of the rolling machine 4. The receiving end of one of the inclined conveyor belts 6 is located below the discharge belt 51 for conveying black tea, and the receiving end of the other inclined conveyor belt 6 is located at the discharge of the withering machine 3 for receiving the green tea and dark tea that have been withered.

[0041] Reference Figure 2 and Figure 3 As shown, in order to facilitate the full spreading of green tea and black tea and the withering of black tea, it is necessary to fully spread or wither the tea leaves in the tea spreading machine 1. Based on this, in this embodiment, the tea spreading machine 1 includes a shell 11, and two conveyor belts 12 are installed on the upper side of the shell 11 and are staggered along the length direction of the shell 11. The two conveyor belts 12 are staggered up and down, and the upper conveyor belt 12 is located on the side close to the feed port, and the lower conveyor belt 12 is located on the side away from the feed port. The inner wall of the conveyor belt 12 is equipped with a rotating mechanism arranged on the shell 11; a discharging conveyor belt 14 is installed on the lower side of the interior of the outer shell 11, and the discharging conveyor belt 14 is located on the side close to the feed port, and is used to receive the tea leaves dropped from the conveyor belt 12 below. The inner wall of the discharging conveyor belt 14 is provided with a support shaft 15 rotatably installed on the inner wall of the outer shell 11, and a driving motor 16 connected to any support shaft 15 is provided on the side wall of the outer shell 11 through a motor cover. A conversion unit 17 for discharging the tea leaves after spreading or withering to the upper end of different feeding belts 5 is provided between the discharging conveyor belt 14 and the outer shell 11.

[0042] Furthermore, in this embodiment, mutually meshing gears 19 are provided between the two adjacent rotating shafts 13 on the inner walls of the two conveyor belts 12, and the rotating shaft 13 on the inner wall of the upper conveyor belt 12 and the support shaft 15 on the inner wall of the discharge conveyor belt 14 are connected by a belt drive.

[0043] During operation, the drive motor 16 is started, and the drive motor 16 drives the support shaft 15 to rotate. The support shaft 15 drives the rotating shaft 13 on the inner wall of the upper conveyor belt 12 to rotate through the belt transmission. The rotating shaft 13 drives the rotating shaft 13 on the inner wall of the lower conveyor belt 12 to rotate in the opposite direction through the gear 19 (in Figure 2 The tea leaves are then conveyed into the outer shell 11 by the loading conveyor belt 2, and enter the upper end of the conveyor belt 12 through the feed port. The tea leaves are conveyed to the side away from the feed port by the upper conveyor belt 12, and the tea leaves fall on the upper end of the lower conveyor belt 12 and are conveyed to the upper end of the discharging conveyor belt 14. The tea leaves are conveyed to the feeding belt 5 by the discharging conveyor belt 14, so that the feeding belt 5 can discharge the tea leaves that have been spread or withered.

[0044] Reference Figure 1 and Figure 2As shown, in order to improve the spreading or withering efficiency and quality of green tea, black tea and black tea, in this embodiment, natural wind or hot air can be transported into the shell 11. Specifically, an air inlet is provided on the side of the shell 11 close to the feed port, and a cover 111 connected to multiple air inlets is installed on the side wall of the shell 11. An air pump 112 is provided on one side of the shell 11, and the output end of the air pump 112 is connected to the cover 111 through a connecting pipe 113; a heat recovery pipe 114 is installed inside the withering machine 3, and the input end of the air pump 112 and the heat recovery pipe 114 are connected. 4 are connected in a detachable manner. In the initial state, the heat recovery pipe 114 is not connected to the input end of the air pump 112. A water tank 115 is installed on one side of the air pump 112. The water tank 115 is filled with water for cooling the hot air inside the connecting pipe 113. The connecting pipe 113 is placed inside the water tank 115. It should be noted that a purification filter element (not shown in the figure) is provided at one end of the heat recovery pipe 114 close to the air pump 112, which is used to filter out odors or other substances that affect the quality of tea when heat is extracted from the fixing machine 3.

[0045] During specific operation, when green tea and black tea are being spread in the spreading machine 1, the air pump 112 is started, and the air pump 112 delivers natural wind into the spreading machine 1, thereby speeding up the spreading efficiency and avoiding squeezing of green tea and black tea due to being placed for a long time, thereby ensuring the quality of green tea and black tea; when black tea is withering in the spreading machine 1, the heat recovery pipe 114 is connected to the input end of the air pump 112, so that the air pump 112 extracts the heat in the withering machine 3 and cools it through the water tank 115, so that the temperature of the hot air can be used to wither the black tea, thereby facilitating the delivery of hot air to the spreading machine 1 to achieve the withering of the black tea, so that the natural wind or hot air delivered to the spreading machine 1 can be adaptively adjusted according to actual needs, thereby improving the spreading or withering efficiency and quality of the tea leaves.

[0046] Reference Figure 4 、 Figure 6 、 Figure 7 and Figure 8As shown, since green tea and black tea need to be withered after spreading, while black tea can be directly rolled without withering, the green tea, black tea or black tea after spreading or withering need to be transported to the withering machine 3 and the rolling machine 4 respectively, and then need to be discharged onto different feeding belts 5. Based on this, a conversion unit 17 is provided in this embodiment. Specifically, the conversion unit 17 includes a movable shaft 171 installed on the inner wall of the discharge conveyor belt 14 on the side away from the feed port, which is used to bend the side of the discharge conveyor belt 14 away from the feed port downward and change the discharge position of the tea leaves. An actuator 172 for driving the discharge conveyor belt 14 to bend is provided between the shell 11 and the movable shaft 171. A positioning shaft 173 located at the lower end of the discharge conveyor belt 14 is rotatably installed on the inner wall of the shell 11 for supporting the discharge conveyor belt 14 when it bends downward, and a tensioning assembly 174 for tensioning the discharge conveyor belt 14 is provided on the inner wall of the shell 11.

[0047] Furthermore, in this embodiment, the execution component 172 includes a receiving hopper 175 that is sleeved on the outer wall of the movable shaft 171. The upper half of the receiving hopper 175 is a horizontal U-shaped structure, and the lower half of the receiving hopper 175 is a rectangular cylindrical structure for guiding tea leaves to the feeding belt 5. The receiving hopper 175 is covered on the side of the discharge conveyor belt 14 away from the feed port. The receiving hopper 175 can receive the tea leaves transported at the upper end of the discharge conveyor belt 14 and transport the tea leaves to the feeding belt 5.

[0048] Furthermore, in this embodiment, the side wall of the shell 11 is provided with a plurality of cylinders 176 connected to the receiving hopper 175, and the side wall of the receiving hopper 175 is provided with a displacement groove 177 for the movable shaft 171 to slide up and down, and an elastic blocking net 178 is installed between the inner wall of the displacement groove 177 and the movable shaft 171 to prevent tea leaves from falling out. The inner wall of the shell 11 is provided with an arc-shaped slide groove 179, and the center of the arc-shaped slide groove 179 coincides with the axis of the support shaft 15 on the side away from the feed port. The two ends of the movable shaft 171 are slidably docked in the arc-shaped slide groove 179, and the inner wall of the shell 11 is provided with a horizontal slide groove 180, and the outer wall of the receiving hopper 175 is installed with a linkage block 181 that slides and docks in the horizontal slide groove 180.

[0049] In specific operation, when withering black tea, the discharge conveyor belt 14 is in a horizontal state, and the receiving hopper 175 is located on the side of the arc chute 179 away from the positioning shaft 173. At this time, the receiving hopper 175 is located at the upper end of the feeding belt 5 for conveying black tea to the rolling machine 4 (at the bottom of the feeding belt 5). Figure 7 When the green tea and the black tea are spread out, the green tea and the black tea need to be fixed. At this time, the cylinder 176 is started, and the cylinder 176 drives the receiving hopper 175 to move to the side close to the positioning shaft 173, so that the receiving hopper 175 is displaced to the upper end of the feeding belt 5 for conveying the tea leaves to the interior of the fixing machine 3 (at Figure 8As shown in the figure), during this period, the receiving hopper 175 drives the movable shaft 171 to move synchronously. While the movable shaft 171 moves, it moves downward along the displacement groove 177 under the action of the arc-shaped slide groove 179, so that the movable shaft 171 drives the discharge conveyor belt 14 to bend downward on the side away from the positioning shaft 173, so as to ensure that there is always enough distance between the discharge conveyor belt 14 and the receiving hopper 175 for the tea leaves to fall. At this time, it is convenient to transport the green tea and black tea that have been spread out to the withering machine 3 through the feeding belt 5 for withering treatment; thereby, the discharge position can be adaptively adjusted according to different tea leaves, so that the spreading and rolling of the tea leaves are automated, thereby improving work efficiency.

[0050] Reference Figure 5 As shown, since the discharge conveyor belt 14 needs to be bent, it is easy for its length to change when it is reset to the horizontal state and it cannot be tightened. Therefore, in this embodiment, the discharge conveyor belt 14 can be tensioned accordingly to ensure that it always has the conveying function. Specifically, the tensioning assembly 174 includes a support plate 182 installed on the inner wall of the shell 11 and located below the discharge conveyor belt 14. The upper end of the support plate 182 is equipped with a support frame 184 through a plurality of support spring rods 183 equidistantly distributed along its length direction. A tensioning wheel 185 is rotatably provided on the support frame 184 and rolls against the lower end of the discharge conveyor belt 14. The support spring rod 183 always applies a driving force to the support frame 184 and the tensioning wheel 185, so that the tensioning wheel 185 always pushes the discharge conveyor belt 14 upward under the action of the driving force, thereby ensuring that the discharge conveyor belt 14 can remain taut when it is bent or horizontal, thereby ensuring its conveying function. Example

[0051] Reference Figure 9 and Figure 10 As shown, on the basis of embodiment 1, in order to ensure that the tea leaves entering the tea spreading machine 1 can be fully spread and withered, in this embodiment, the tea leaves can be spread evenly when they are put into the tea spreading machine 1 to avoid accumulation affecting the spreading effect. Based on this, both sides of the feeding conveyor belt 2 are provided with brackets 21, and the inner wall of the feeding conveyor belt 2 is provided with multiple fixed shafts 22 located on the opposite sides of the two brackets 21. The fixed shafts 22 and the rotating shaft 13 are connected by a belt transmission. The upper ends of the two brackets 21 are provided with positioning plates 23, and an execution shaft 24 is rotatably provided between the two positioning brackets. The executive shaft 24 and any one of the fixed shafts 22 are connected by a belt drive. A displacement sleeve 25 is provided on the sliding sleeve of the outer wall of the executive shaft 24. A plurality of return spring rods 26 are installed between the displacement sleeve 25 and the positioning plate 23. The return spring rods 26 always exert a pushing force on the displacement sleeve 25, and both ends of the displacement sleeve 25 are subjected to pushing force. Therefore, the distance between the displacement sleeve 25 and the two positioning plates 23 is equal in the initial state, and the rotation direction of the displacement sleeve 25 can be limited by the return spring rods 26 to ensure that the displacement sleeve 25 does not rotate when the executive shaft 24 rotates.

[0052] Furthermore, in this embodiment, a plurality of linkage rings 27 are sleeved on the outer wall of the executive shaft 24 at equal intervals along the axial direction, and the upper end to the lower end of the linkage ring 27 is inclined toward one end of the displacement sleeve 25, and the inner top wall of the displacement sleeve 25 is installed with a buckle 28 that is slidably docked with the upper end of the linkage ring 27. A plurality of dividing tooth plates 29 are installed at equal intervals along the width direction on the side of the displacement sleeve 25 close to the feeding conveyor belt 2, and there is a certain distance between the dividing tooth plate 29 and the feeding conveyor belt 2.

[0053] It should be noted that the diameter of the actuator shaft 24 is smaller than the diameter of the fixed shaft 22 . Therefore, when the fixed shaft 22 drives the actuator shaft 24 to rotate, the rotation speed of the actuator shaft 24 is greater than the rotation speed of the fixed shaft 22 .

[0054] During specific operation, when the rotating shaft 13 rotates, it drives the loading conveyor belt 2 to move through the fixed shaft 22, and the tea leaves are transported to the spreading machine 1 through the loading conveyor belt 2. At this time, the fixed shaft 22 drives the executive shaft 24 to rotate, and the executive shaft 24 drives the linkage ring 27 to rotate synchronously. The mutual cooperation between the linkage ring 27 and the buckle 28 can drive the displacement sleeve 25 to move back and forth along the axial direction of the executive shaft 24. During this period, the displacement sleeve 25 can be reset after moving through the reset spring rod 26. During the movement of the displacement sleeve 25, the dividing tooth plate 29 is driven to move synchronously. When the loading conveyor belt 2 transports the tea leaves, the reciprocating dividing tooth plate 29 can scrape and spread the accumulated tea leaves, ensuring that the tea leaves transported to the spreading machine 1 are evenly spread, and then ensuring that the natural wind or hot air transported to the spreading machine 1 can fully spread or wither the tea leaves, avoiding the accumulation of tea leaves affecting the spreading or withering efficiency and quality.

[0055] In addition, guide plates are installed on the opposite sides of the two positioning plates 23. There is a gap between the guide plates and the loading conveyor belt 2 that is large enough for tea leaves to pass through, which is convenient for guiding the tea leaves scraped off the loading conveyor belt 2 so that they can fall back onto the loading conveyor belt 2 to prevent the tea leaves from falling.

[0056] During operation: Step 1: First, pour the tea leaves to be processed into the feeding area, then start the withering machine 3 to preheat, start the drive motor 16, the drive motor 16 drives the support shaft 15 to rotate, and the support shaft 15 drives the rotating shaft 13 to rotate, so that the conveyor belt 12 in the spreading machine 1 moves; when the rotating shaft 13 rotates, it drives the feeding conveyor belt 2 to move through the fixed shaft 22, and the tea leaves are transported to the spreading machine 1 through the feeding conveyor belt 2.

[0057] Step 2: The fixed shaft 22 drives the executive shaft 24 to rotate, and the executive shaft 24 drives the linkage ring 27 to rotate synchronously. Through the mutual cooperation between the linkage ring 27 and the buckle 28, the displacement sleeve 25 and the dividing tooth plate 29 can be driven to reciprocate along the axial direction of the executive shaft 24. When the feeding conveyor belt 2 transports tea leaves, the reciprocating dividing tooth plate 29 can scrape and spread the accumulated tea leaves, ensuring that the tea leaves transported to the spreading machine 1 are evenly spread and spread on the conveyor belt 12.

[0058] Step 3: When the green tea and the black tea are being spread in the spreading machine 1, start the air pump 112. The air pump 112 delivers natural wind into the spreading machine 1, thereby speeding up the spreading efficiency and avoiding squeezing of the green tea and the black tea due to being left for a long time, thereby ensuring the quality of the green tea and the black tea.

[0059] When the black tea is withering in the spreading machine 1, the heat recovery pipe 114 is connected to the input end of the air pump 112, so that the air pump 112 extracts the heat in the withering machine 3 and cools it through the water tank 115, so that the temperature of the hot air can be used to wither the black tea, thereby facilitating the delivery of hot air to the spreading machine 1 to achieve the withering of the black tea, and thus the natural wind or hot air delivered to the spreading machine 1 can be adaptively adjusted according to actual needs, thereby improving the spreading or withering efficiency and quality of the tea leaves.

[0060] Step 4: When withering the black tea, the discharge conveyor belt 14 is in a horizontal state, and the receiving hopper 175 is located on the side of the arc chute 179 away from the positioning shaft 173. At this time, the receiving hopper 175 is located at the upper end of the feeding belt 5 used to transport the black tea to the rolling machine 4. Since black tea does not need to be withered, the withered black tea can be directly transported to the rolling machine 4 through the feeding bag.

[0061] When spreading green tea and black tea, the green tea and black tea need to be withered, and the cylinder 176 is started. The cylinder 176 drives the receiving hopper 175 to move to the side close to the positioning shaft 173, so that the receiving hopper 175 is displaced to the upper end of the feeding belt 5 for conveying the tea leaves to the interior of the withering machine 3. During this period, the receiving hopper 175 drives the movable shaft 171 to move synchronously. While the movable shaft 171 moves, it moves downward along the displacement groove 177 under the action of the arc slide 179, so that the movable shaft 171 drives the discharging conveyor belt 14 to bend downward away from the side of the positioning shaft 173, so as to ensure that there is always enough distance between the discharging conveyor belt 14 and the receiving hopper 175 for the tea leaves to fall. At this time, it is convenient to convey the green tea and black tea that have been spread to the withering machine 3 through the feeding belt 5 for withering processing. The green tea or black tea after withering is conveyed to the rolling machine 4 under the action of the inclined conveyor belt 6.

[0062] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0063] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An integrated automatic production line for spreading and rolling tea leaves, characterized in that: include: A tea spreading machine (1) is used for spreading green tea and black tea and withering black tea. A feeding port for pouring tea leaves is provided on either side of the tea spreading machine (1); A feeding conveyor belt (2) is provided on the side of the tea spreading machine (1) close to the feed inlet, and is used to convey the tea leaves into the tea spreading machine (1) through the feed inlet; A fixing machine (3) for fixing green tea and black tea is installed on one side of the spreading machine (1); A rolling machine (4) is provided on one side of the fixing machine (3) and is used for rolling the green tea, black tea and black tea after withering; A feeding belt (5) is installed inside the spreading machine (1) and is connected to the outside. The feeding belt (5) has two groups and is connected to the fixing machine (3) and the rolling machine (4) respectively, and is used to transport the green tea and black tea after spreading to the fixing machine (3), and to directly transport the black tea after withering to the rolling machine (4); The tea spreading machine (1) comprises a housing (11), a discharge conveyor belt (14) is installed on the lower side of the housing (11), and a conversion unit (17) is provided between the discharge conveyor belt (14) and the housing (11) for discharging tea leaves after spreading or withering to the upper ends of different feeding belts (5); The conversion unit (17) includes a movable shaft (171) installed on the inner wall of the discharge conveyor belt (14) away from the feed port, an actuator component (172) for driving the discharge conveyor belt (14) to bend is provided between the housing (11) and the movable shaft (171), a positioning shaft (173) located at the lower end of the discharge conveyor belt (14) is rotatably installed on the inner wall of the housing (11), and a tensioning component (174) for tensioning the discharge conveyor belt (14) is provided on the inner wall of the housing (11).

2. The integrated automatic production line for spreading and rolling tea leaves according to claim 1, characterized in that: Two conveyor belts (12) are installed on the upper side of the interior of the housing (11), and a rotating shaft (13) rotatably arranged on the inner wall of the housing (11) is installed on the inner wall of the conveyor belt (12); The inner wall of the discharge conveyor belt (14) is provided with a support shaft (15) rotatably mounted on the inner wall of the housing (11), and the side wall of the housing (11) is provided with a drive motor (16) connected to any support shaft (15) through a motor cover.

3. The integrated automatic production line for spreading and rolling tea leaves according to claim 2, characterized in that: Mutually meshing gears (19) are provided between two adjacent rotating shafts (13) on the inner walls of the two conveyor belts (12), and the rotating shaft (13) on the inner wall of the upper conveyor belt (12) and the supporting shaft (15) on the inner wall of the discharge conveyor belt (14) are connected via a belt transmission.

4. The integrated automatic production line for spreading and rolling tea leaves according to claim 2, characterized in that: An air inlet is provided on one side of the housing (11) near the feed port, and a cover (111) connected to the plurality of air inlets is installed on the side wall of the housing (11). An air pump (112) is provided on one side of the housing (11), and an output end of the air pump (112) is connected to the cover (111) via a connecting pipe (113); A heat recovery pipe (114) is installed inside the fixing machine (3), and the input end of the air pump (112) and the heat recovery pipe (114) are connected in a detachable manner. A water tank (115) is installed on one side of the air pump (112), and the connecting pipe (113) is placed inside the water tank (115).

5. The integrated automatic production line for spreading and rolling tea leaves according to claim 1, characterized in that: The execution assembly (172) includes a receiving hopper (175) sleeved on the outer wall of the movable shaft (171), the upper half of the receiving hopper (175) is a transverse U-shaped structure, the lower half of the receiving hopper (175) is a rectangular cylindrical structure for guiding tea leaves to the feeding belt (5), and the receiving hopper (175) cover is arranged on the side of the discharge conveyor belt (14) away from the feeding port.

6. The integrated automatic production line for spreading and rolling tea leaves according to claim 5, characterized in that: The side wall of the housing (11) is provided with a plurality of cylinders (176) connected to the receiving hopper (175), the side wall of the receiving hopper (175) is provided with a displacement groove (177) for the movable shaft (171) to slide up and down, the inner wall of the housing (11) is provided with an arc-shaped slide groove (179), the two ends of the movable shaft (171) are slidably docked in the arc-shaped slide groove (179), and the inner wall of the housing (11) is provided with a transverse slide groove (180), and the outer wall of the receiving hopper (175) is installed with a linkage block (181) that is slidably docked in the transverse slide groove (180).

7. The integrated automatic production line for spreading and rolling tea leaves according to claim 1, characterized in that: The tensioning assembly (174) includes a support plate (182) mounted on the inner wall of the housing (11) and located below the discharge conveyor belt (14); a support frame (184) is mounted on the upper end of the support plate (182) via a plurality of support spring rods (183) equidistantly distributed along its length; a tensioning wheel (185) is rotatably provided on the support frame (184) and is in rolling contact with the lower end of the discharge conveyor belt (14).

8. The integrated automatic production line for spreading and rolling tea leaves according to claim 1, characterized in that: Two discharge belts (51) are provided on the side of the feeding belt (5) away from the tea spreading machine (1). The discharge belts (51) are located below the feeding belt (5). The two discharge belts (51) are used to transport the tea leaves to the tea fixing machine (3) and the tea rolling machine (4), respectively.

9. The integrated automatic production line for spreading and rolling tea leaves according to claim 8, characterized in that: The invention also includes an inclined conveyor belt (6), which has two groups. The output ends of the two inclined conveyor belts (6) are both located at the feeding position of the rolling machine (4). The receiving position of one inclined conveyor belt (6) is located below the discharge belt (51) for conveying black tea, and the receiving position of the other inclined conveyor belt (6) is located at the discharging position of the fixing machine (3) for receiving the green tea and black tea after fixing.

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