Tea rolling machine, unit thereof and control method based on ridge dynamic and static conversion

Abstract

The invention discloses a tea rolling machine, a unit thereof and a control method based on ridge-bone dynamic and static conversion, and relates to the technical field of tea rolling, the tea rolling machine comprises a rolling disc with ribs, a rolling barrel arranged above the rolling disc, a gland matched with the rolling barrel, and a driving source used for driving the rolling barrel to do circular motion; a discharging barrel is coaxially mounted at the central position of the rolling disc, an opening in the upper end of the discharging barrel is flush with the upper surface of the rolling disc, and a discharging opening is formed in the side part of the discharging barrel; a rotating shaft capable of rotating is coaxially installed in the discharging barrel, spiral material guiding blades are arranged outside the rotating shaft in the axial direction of the rotating shaft in an extending mode, and ribs are arranged at the top end of the rotating shaft. According to the invention, the traditional tea outlet door design is abandoned, and the part capable of guiding and discharging the tea strips is additionally arranged, so that the tea strips are uniformly discharged, and subsequent processing is facilitated.

Description

Technical Field

[0001] This invention relates to the field of tea rolling technology, specifically to a tea rolling machine and its assembly, and a control method based on the dynamic-static conversion of the rib. Background Technology

[0002] Rolling is a key step in tea processing. Its purpose is to use external force to tighten the tea strips, reduce their volume, and lay a good foundation for drying them into strips. At the same time, it breaks down the cell structure of the tea leaves, allowing the tea juice to seep out and making it easier to brew.

[0003] Traditional tea rolling machines have a three-crank disc structure. The rolling drum is driven by the three cranks to make a planar circular motion, and the tea leaves inside the drum can be rolled on the rolling disc. Specifically... Figure 1 The diagram shows a top view of a conventional kneading machine in the prior art. 10 represents a kneading disc with multiple sets of raised ribs; 20 represents a kneading drum located above the kneading disc; 30 represents a pressure cover that can be raised and lowered within the kneading drum; 21 represents an arm fixedly connected to the kneading drum; 61 represents a support platform; 60 represents a rotating shaft rotatably mounted on the support platform; and 50 represents a rotating crank, with one end connected to the arm and the other end connected to the rotating shaft. During kneading, the three rotating shafts rotate synchronously, driving the rotating crank to move in tandem, causing the kneading drum to achieve circular motion. The tea leaves are gradually kneaded into strips under the combined action of the kneading drum and the kneading disc.

[0004] Furthermore, Figure 1 The kneading machine shown also includes a tea outlet gate 40 that is movably located at the center of the kneading disc. The tea outlet gate can move up and down at the center of the kneading disc. During normal kneading, the tea outlet gate is in a high position, and at this time, the tea outlet gate and the kneading disc are flush and connected to form a closed working surface. When the kneading is completed and the material needs to be discharged, the tea outlet gate is driven to descend to a low position. At this time, a material hole will be exposed at the center of the kneading disc, and multiple sets of tea strips can fall through the material hole to be discharged.

[0005] In automated production lines, a conveyor belt is typically installed below the feed hole to transport the twisted strands to the next process. However, since the feed hole is generally circular (e.g., ... Figure 1 The tea outlet 40 shown is circular, so the feed hole is naturally also circular or rectangular. During the falling process, the tea leaves are stacked on the conveyor belt. Before entering the next process, they often need to be flattened and sorted manually. This process is not only time-consuming and labor-intensive, but also easily causes mechanical damage to the tea leaves, affecting the integrity of the tea and the quality of subsequent processing. Summary of the Invention

[0006] The purpose of this invention is to solve the problems in the prior art by proposing a tea rolling machine. By abandoning the traditional tea outlet design, a component is added to guide the tea leaves out of the machine so that they can be discharged evenly, which facilitates subsequent processing.

[0007] To address the above problems, the present invention provides the following technical solution: A tea rolling machine includes a rolling disc with raised ridges, a rolling drum disposed above the rolling disc, a pressure cover adapted to the rolling drum, and a drive source for driving the rolling drum to rotate in a circular motion. A discharge cylinder is coaxially installed at the center of the kneading disc. The upper opening of the discharge cylinder is flush with the upper surface of the kneading disc, and a discharge port is provided on the side of the discharge cylinder. The discharge cylinder is coaxially mounted with a rotating shaft that can rotate on its own axis. Spiral guide blades are provided on the outside of the rotating shaft along its axial direction, and a rib is provided at the top of the rotating shaft. The rotating shaft remains stationary during the kneading process, allowing the ribs and protrusions to knead the tea leaves together. During the discharge process, the rotating shaft rotates, causing the ribs and spiral guide blades to rotate, thereby breaking up the tea leaves and guiding them to the discharge point.

[0008] As a further aspect of the present invention: the driving source includes three sets of kneading motors mounted on the base, and the output shaft of each set of kneading motors is movably connected to a crank arm. A rotary frame is movably mounted on each of the three sets of crank arms, and the kneading drum is mounted on the rotary frame.

[0009] As a further aspect of the present invention, it also includes a power source disposed on the rotating frame, the power source being used to drive the kneading drum to rotate, so that in addition to the kneading drum being able to perform circular motion, it can also perform rotational motion.

[0010] As a further aspect of the present invention: the power source includes a self-rotating motor mounted on a rotating frame, the output shaft of the self-rotating motor is fixedly provided with a gear, a connecting ring is fixedly sleeved on the outside of the kneading drum, and a toothed ring is fixedly sleeved on the outside of the connecting ring, and the toothed ring meshes with the gear for transmission.

[0011] As a further aspect of the present invention: during the discharge operation, the rotation speed of the rib is different from the rotation speed of the kneading drum.

[0012] As a further aspect of the present invention: a discharge motor is fixedly installed at the lower end of the discharge cylinder, and the output shaft of the discharge motor is connected to the rotating shaft for transmission.

[0013] As a further aspect of the present invention: a column is fixedly mounted on the rotating frame, a pressure arm is coaxially and rotatably mounted on the column, a pressure cylinder is fixedly mounted on the pressure arm, a pressure cap is mounted on the output end of the pressure cylinder, and a pressure sensor is provided in the inner cavity of the pressure cylinder; a rotary motor for driving the pressure arm to rotate is fixedly mounted on the column, and an angle limit switch for detecting the rotation angle of the pressure arm is provided on the column.

[0014] As a further aspect of the present invention: a photoelectric sensor is provided on the base, and the movement path of the crank arm intersects within the sensing range of the photoelectric sensor.

[0015] A kneading unit includes at least two kneading machines and a vertical elevator. A rail-type feeding trolley is provided below the discharge port of the vertical elevator. A feeding conveyor belt is provided between the rail-type feeding trolley and the kneading machine, and a feeding auxiliary chute is provided between the feeding conveyor belt and the top opening of the kneading drum.

[0016] A control method based on the dynamic-static transformation of a prism includes the following steps: Step 1: Use the pressure cylinder to lift the pressure cap until it is detached from the kneading drum. Then, use the rotary motor to rotate the pressure arm and the pressure cap at a certain angle, so that the top of the kneading drum is open. Add the tea leaves to be kneaded into the kneading drum, and then reset the pressure cap and apply pressure to the tea leaves in the kneading drum. Step 2: Start the drive source and the self-rotating motor, so that the kneading drum makes a circular motion and a self-rotating motion at the same time. Maintain this combined motion for the specified kneading time. During this process, the ribs and convex ribs work together to knead the tea leaves. Step 3: After the specified kneading time is completed, the kneading ends. Continue the compound motion of the kneading drum, and at the same time, the discharge motor starts, driving the rotating shaft to rotate. The rotating ribs are used to break up and finely knead the tea leaves, and the rotating spiral guide blades are used to guide the tea leaves to the discharge.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. By coaxially installing the ribs and spiral guide blades inside the discharge cylinder at the center of the kneading disc, and through the switching between static and dynamic rotation of the shaft, the same mechanism plays distinctly different roles in the kneading and discharge stages. Specifically: During kneading, the shaft remains stationary, and the ribs at the top act as fixed protrusions in the central area of ​​the kneading disc, working in conjunction with the protrusions on the disc to eliminate the kneading dead corners that are prone to occur in the center of traditional kneading machines, ensuring that the tea leaves are kneaded evenly and thoroughly; During discharge, the shaft rotates, and the ribs rotate to break up clumps of tea leaves, while the spiral guide blades continuously and forcibly guide the broken tea leaves to the discharge port on the side of the discharge cylinder, achieving smooth and efficient automatic discharge.

[0018] 2. Due to the structure and layout of the discharge cylinder, its top outlet is always open. During the kneading process, the presence of the circumferentially arranged ribs and the spirally arranged spiral guide blades at the top outlet will obstruct the movement of tea leaves during the kneading process, preventing more tea leaves from falling and accumulating in the discharge cylinder.

[0019] 3. By adding a power source to the rotating frame, the kneading drum is made to have the ability to rotate on the basis of the original circular motion, realizing a compound motion mode of the kneading drum. The compound motion changes the movement trajectory of the tea leaves in the drum from a simple circle to a complex spatial cycloid. The tea leaves not only revolve with the drum, but also roll up and down under the action of centrifugal force and friction, which is closer to the three-dimensional force state of hand kneading, which is conducive to the uniform breaking of tea cells and the tightness of tea strips.

[0020] 4. By limiting the rotation speed of the ribs to differ from that of the kneading drum during the discharge process, a relative motion is generated between them. At the final moment before the tea leaves leave the kneading pan and enter the discharge port, they are subjected to the synergistic kneading action of the rotating ribs and the moving kneading drum, essentially undergoing a rapid fine kneading or final shaping. This helps to make the surface of the tea leaves smoother and the leaves more compact. Simultaneously, the speed difference also enhances the de-clumping effect, making the tea leaves easier to disperse and creating conditions for subsequent conveying.

[0021] 5. The design of the pressure cylinder in conjunction with the pressure sensor enables real-time monitoring and precise control of the pressure cap pressure. It can automatically adjust the pressure according to the kneading process, ensuring consistent kneading results. The design of the rotary motor in conjunction with the angle limit switch enables automatic avoidance and reset of the pressure arm and pressure cap, providing space for automatic feeding and discharging.

[0022] 6. By setting a photoelectric sensor on the base and making its sensing range intersect with the movement path of the crank arm, real-time monitoring of the position of the kneading drum is realized, providing a key position feedback signal for the automated control of the kneading machine. It can accurately determine the movement phase of the kneading drum and provide a basis for the timing control of actions such as automatic feeding, automatic discharging, and pressure arm avoidance.

[0023] 7. By integrating multiple innovatively structured kneading machines into an automated kneading unit, and equipping it with a vertical elevator, a track-type feeding car, a feeding conveyor belt, and a feeding auxiliary chute, a complete tea kneading production line was constructed. This achieved full automation of the tea process from lifting, conveying, and distributing to feeding into each kneading machine, significantly reducing manual handling and auxiliary operations, and improving production efficiency and batch consistency.

[0024] 8. The control method fully utilizes the dual functions of the ribs: during the kneading stage, the ribs remain stationary while participating in the kneading process, and during the discharge stage, they rotate to achieve dispersing, fine kneading, and guiding the discharge. This control method not only ensures smooth discharge but also utilizes the discharge process for final shaping and refining of the tea leaves, thus improving the quality of the tea strips. Attached Figure Description

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] Figure 1 This is a top view of a conventional kneading machine in the prior art; Figure 2 This is a schematic diagram of the three-dimensional structure of the kneading unit of the present invention. Figure 1 ; Figure 3 This is a top view of the kneading unit of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the kneading unit of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the three-dimensional structure of the kneading machine of the present invention. Figure 1 ; Figure 6 yes Figure 5 Enlarged structural diagram at point A; Figure 7 This is a three-dimensional structural diagram of the discharge cylinder of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the spiral guide blade and the rib of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the kneading machine of the present invention. Figure 2 ; Figure 10 This is a schematic diagram of the pressurized cylinder structure of the present invention; Figure 11 This is a schematic diagram of the opening process of the kneading machine according to the present invention.

[0027] In the picture: 1. Feeding unit; 11. Vertical elevator; 12. Rail-mounted feeding car; 121. Feeding car conveyor belt motor; 122. Control traction motor; 123. Drive wheel; 124. Traction belt; 13. Feeding conveyor belt; 131. Control motor; 14. Feeding auxiliary chute; 2. Kneading processing unit; 21. Kneading machine No. 1; 22. Kneading machine No. 2; 23. Kneading machine No. 3; 24. Kneading machine No. 4; 2111. Crank arm; 2112. Kneading motor; 2113. Rotary frame; 2114. Gear ring; 2115. Gear; 2116. Rotary motor; 2117. Connecting ring; 2118. Kneading drum; 2119. Kneading disc; 212. Pneumatic pressurization unit; 2121. Column; 2122. Pressurization arm; 21221. Pressurization cylinder; 21222. Piston rod; 21223. Pressure cap; 2123. Rotary motor; 2124. Angle limit switch; 2125. Clamping ring; 2126. Pneumatic hose; 2127. Five-way pneumatic valve; 2128. Compressed air pump; 2129. Limit baffle; 3. Discharge unit; 31. Discharge cylinder; 311. Rib; 312. Spiral guide blade; 313. Rotary shaft; 32. Discharge motor; 33. Discharge conveyor belt; 34. Discharge port; 4. Frame; 41. Track frame; 5. Control unit; 51. Pressure sensor; 52. Photoelectric sensor; 6. Base. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1: like Figures 2-9 As shown, a tea rolling machine includes a base 6, a rolling disc 2119 mounted on the base 6, a rolling drum 2118 mounted above the rolling disc 2119, a pressure cover 21223 adapted to the rolling drum 2118, and a drive source for driving the rolling drum 2118 to rotate in a circular motion. The drive source includes three sets of rolling motors 2112 mounted on the base 6. The output shaft of each set of rolling motors 2112 is movably connected to a crank arm 2111. A rotary frame 2113 is movably mounted on each of the three sets of crank arms 2111, and the rolling drum 2118 is mounted on the rotary frame 2113.

[0030] When performing the kneading process, tea leaves are added to the kneading drum 2118 beforehand, and then the pressure cover 21223 is placed on top and pressure is applied. The three sets of kneading motors 2112 are started, so that the kneading drum 2118 moves in a circular motion around the central axis of the kneading disc 2119 to achieve kneading.

[0031] Based on the above design, this embodiment adds a set of discharge cylinders 31, which replace the traditional tea outlet. Figures 5-8 As shown, the specific installation is as follows: (1) The discharge cylinder 31 is coaxially installed at the center of the kneading disc 2119. The upper opening of the discharge cylinder 31 is flush with the upper surface of the kneading disc 2119, and the discharge port 34 is provided on the side of the discharge cylinder 31. (2) A rotating shaft 313 capable of self-rotation is coaxially installed inside the discharge cylinder 31; (3) Spiral guide blades 312 are provided on the outside of the rotating shaft 313 along its axial direction; (4) A rib 311 is provided at the top of the rotating shaft 313; (5) A discharge motor 32 is fixedly installed at the lower end of the discharge cylinder 31, and the output shaft of the discharge motor 32 is connected to the rotating shaft 313 for transmission.

[0032] During normal kneading, the discharge motor 32 is not operating, and the rotating shaft 313 remains stationary. Consequently, the rib 311 at the top of the rotating shaft 313 also remains stationary. Later, as the kneading drum 2118 moves in a circular motion on the kneading disc 2119, the stationary rib 311 strongly obstructs and kneads the tea leaves as it passes the center, forcing the tea leaves to be continuously turned and kneaded along the circular motion path. This not only improves the uniformity of kneading but also eliminates the kneading dead zones in the central area. When kneading is complete and the discharge process begins, the kneading drum 2118 continues its circular motion, while the discharge motor 32 is activated, driving the rotating shaft 313 to rotate. The rotation of the rotating shaft 313 drives the rib 311 and the spiral guide blades 312 to follow suit. Therefore, the operating condition is: the kneading drum 2118 is in circular motion (equivalent to revolution), and the rib 311 is rotating. The trajectories of both are a superposition of translation and rotation. When the rib 311 rotates, its trajectory is a composite trajectory relative to the revolving kneading drum 2118. The rotating rib 311 inserts into the tea ball during discharge, breaking it up and dispersing clumps. During this process, the revolving kneading drum 2118 continuously pushes the tea leaves towards the center, while the rotating rib 311 acts like a rotating plow, continuously chopping and breaking up the accumulated tea balls. The rotation of the rib 311 and the revolution of the kneading drum 2118 form perpendicular or intersecting directions of motion, resulting in a strong tearing effect on the tea balls and excellent dispersing effect. The spiral guide blade 312, in conjunction with the rotating rib 311, forces the dispersed tea leaves to be evenly discharged from the discharge port 34, ensuring a uniform distribution of the leaves and facilitating subsequent processing.

[0033] It should be noted that, due to the structure and layout of the discharge cylinder 31, its top outlet is always open. During the kneading process, the presence of the circumferentially arranged ribs 311 and the spirally arranged spiral guide blades 312 at the top outlet effectively obstructs the movement of the tea leaves during kneading, preventing excessive tea leaves from falling and accumulating inside the discharge cylinder 31. In other words, even though this application uses a discharge cylinder 31 with an opening at the top to replace the traditional tea outlet, the design of the ribs 311 and spiral guide blades 312 still effectively obstructs the movement of the tea leaves.

[0034] This application abandons the traditional tea outlet design and instead uses the discharge cylinder 31 design, which allows the stationary ribs 311 to perform the kneading action during the kneading process; during the discharge process, the rotating ribs 311 can break up the tea clumps, ultimately achieving uniform discharge of tea strips, thus realizing multi-purpose machine and process flexibility.

[0035] Example 2: To improve the kneading and output effect, this embodiment adds a power source based on the first embodiment. At the same time, the kneading drum 2118 is rotated and installed on the rotating frame 2113. The power source is used to drive the kneading drum 2118 to rotate, so that the kneading drum 2118 can perform both circular motion and rotational motion, that is, to form a compound motion.

[0036] Specifically, the power source includes a self-rotating motor 2116 mounted on the rotating frame 2113. A gear 2115 is fixedly mounted on the output shaft of the self-rotating motor 2116. A connecting ring 2117 is fixedly sleeved on the outside of the kneading drum 2118, and a gear ring 2114 is fixedly sleeved on the outside of the connecting ring 2117. The gear ring 2114 meshes with the gear 2115 for transmission. When the self-rotating motor 2116 is working, the kneading drum 2118 can be driven to rotate by the meshing transmission between the gear 2115 and the gear ring 2114. Of course, the design of the power source is not limited to the combination of gear 2115 and gear ring 2114; other conventional designs in the prior art can also be used. For the sake of brevity, these will not be elaborated upon here.

[0037] During the kneading process, the kneading drum 2118 revolves around its own axis while simultaneously rotating, resulting in a complex cycloidal trajectory for the tea leaves inside. The tea leaves not only revolve with the drum 2118 but also tumble up and down within it. The stationary rib 311 is located at the center. When the tea leaves approach the central area during this complex motion, they are subjected to forces from various directions that interact with the stationary rib 311, producing a fine three-dimensional kneading effect that makes the tea leaves tightly rolled and rounded.

[0038] During the discharge process, the kneading drum 2118 is undergoing planetary motion, and the rib 311 is rotating. This can be divided into the following two situations: 1) When the rotation speed of the rib 311 is the same as the rotation speed of the kneading drum 2118: If the rotation speed of the rib 311 and the rotation speed of the kneading drum 2118 can be completely synchronized (relative to the drum wall), then at the moment of discharge, the tea leaves on the rib 311 relative to the inner wall of the kneading drum 2118 are stationary. At this time, the tea leaves are thrown or pushed towards the center by the combined motion of the kneading drum 2118, and then guided into the spiral guide blades 312 by the rotating rib (stationary relative to the drum) 311. This method of discharge is gentler and causes the least damage to the tea leaves.

[0039] 2) When the rotation speed of the rib 311 is different from the rotation speed of the kneading drum 2118: The complex planetary motion of the kneading drum 2118 has already put the tea leaves in a dynamic tumbling process. If the rotating rib 311 cuts in at a different speed, it is equivalent to setting a high-speed rotating kneading head on the discharge channel. At the last moment when the tea leaves leave the kneading disc 2119, they will be subjected to strong, multi-directional final shaping between the rib 311 and the wall of the kneading drum 2118, and finally obtain tightly rolled and oily strips.

[0040] The above two operating modes can be selected according to the actual application scenario and the corresponding tea type.

[0041] Example 3: like Figures 9-11 As shown, based on any of the above embodiments, this embodiment refines the opening action of the pressure cap 21223. Specifically, the kneading machine includes a pneumatic pressurizing unit 212, which includes a column 2121 fixedly mounted on the rotating frame 2113. A pressurizing arm 2122 is coaxially rotatably mounted on the column 2121, and a pressurizing cylinder 21221 is fixedly mounted on the pressurizing arm 2122. The pressure cap 21223 is installed on... The piston rod 21222 of the pressurizing cylinder 21221 has an air inlet and outlet port, which is connected to the pneumatic hose 2126. The pneumatic hose 2126 is connected to the five-way pneumatic valve 2127. The five-way pneumatic valve 2127 is connected to the compressed air pump 2128 through the pneumatic hose 2126. The compressed air pump 2128 is fixed below the column 2121 and is fixedly connected to the column 2121 with screws and nuts.

[0042] The inner cavity of the pressurizing cylinder 21221 is equipped with a pressure sensor 51, which is a piezoresistive pressure sensor, model SMC PSE530. Specific parameters and operating details of the pneumatic pressurization are as follows: the effective stroke of the pressurizing cylinder 21221 is 200mm, the inner diameter of the pressurizing cylinder 21221 is 320mm, the diameter of the pressure cap 21223 is 640mm, and the area ratio of the pressurizing cylinder 21221 to the pressure cap 21223 is 1:4.

[0043] Taking bulk green tea as an example, during green tea processing, the required tea pressure for light pressing is 5-10 N / cm², and taking the midpoint, the total thrust is approximately 24100 N, requiring a cylinder working pressure of approximately 0.30 MPa (corresponding to 7.5 N / cm² tea pressure); for medium pressing, the required tea pressure is 10-15 N / cm², and taking the midpoint, the total thrust is approximately 40200 N, requiring a cylinder working pressure of approximately 0.50 MPa (corresponding to 12.5 N / cm² tea pressure); for heavy pressing, the required tea pressure is 15-20 N / cm², at which point the maximum required total thrust is approximately 64300 N, requiring a pressurizing cylinder working pressure of approximately 0.80 MPa (corresponding to 20 N / cm² tea pressure).

[0044] To achieve precise control of tea pressure by the tea-rolling machine, we employ a closed-loop pneumatic control system. This system uses a cylinder (320mm inner diameter) as the actuator, monitors the cylinder pressure in real time via a high-precision pressure sensor (range 0-1.0MPa, 4-20mA output), and uses an electro-proportional valve (such as ITV2050) as the pressure regulating device. The core control is handled by a PLC, which internally establishes a conversion model between thrust and air pressure (F=80425×p, where p is in MPa). During operation, the operator sets the target tea pressure (e.g., 12.5N / cm²), and the PLC automatically calculates the corresponding total thrust (approximately 40200N) and the set air pressure (0.50MPa). Then, through a PID algorithm, it compares the set value with the sensor feedback value and dynamically adjusts the control voltage (0-10V) output to the proportional valve, thereby precisely controlling the cylinder's output thrust.

[0045] The system includes safety limits (pressure upper limit 0.9MPa), multi-segment pressure ramp control, fault diagnosis and human-machine interface, which meet the precise control requirements of 5-20N / cm² tea pressure in the kneading process, and the control accuracy can reach ±1%FS.

[0046] Furthermore, a rotary motor 2123 for driving the pressure arm 2122 to rotate is fixedly installed on the column 2121, and an angle limit switch 2124 for detecting the rotation angle of the pressure arm 2122 is provided on the column 2121; specifically, a clamping ring 2125 is provided on the column 2121, and the angle limit switch 2124 is installed on the clamping ring 2125. A limit baffle 2129 is also provided on the column 2121, and a photoelectric sensor 52 is provided on the base 6, and the movement path of the crank arm 2111 intersects within the sensing range of the photoelectric sensor 52.

[0047] Normal operating conditions of a kneading machine are as follows: Figure 11The kneading machine on the left is used to represent this. At this time, the pressure cap 21223 is inserted into the kneading drum 2118 to a certain depth. When the system detects the feeding time of the kneading machine, it first controls the photoelectric sensor 52 to work. When the crank arm 2111 above the photoelectric sensor 52 passes through the sensing range, the photoelectric sensor 52 sends a signal, and the kneading drum 2118 stops at a predetermined position. Then, the pressure sensor 51 sends a signal, causing the piston rod 21222 in the pressure cylinder 21221 to move upward, thereby raising the height of the pressure cap 21223. When the piston rod 21222 reaches the mechanical top dead center of its stroke, the pressure cap 21223 is higher than the top opening of the kneading drum 2118. This state can be determined by... Figure 11 The middle kneading machine is used as an example; then, the angle limit switch 2124 sends a signal to control the pressure arm 2122 to rotate at a predetermined angle, so as to open the pressure cover 21223 for feeding.

[0048] Example 4: like Figure 2 As shown, a kneading machine unit includes a feeding unit 1, a kneading processing unit 2, a discharging unit 3, and a control unit 5. The feeding unit 1 is used for quantitative feeding of tea leaves; the kneading processing unit 2 is used for processing the tea leaves; the discharging unit 3 is responsible for discharging and conveying the kneaded tea leaves; and the control unit 5 is used to control the feeding and discharging time, the positioning of the kneading machine during feeding, the opening state of the pressure cap 21223, and the pressure exerted by the pressure cap 21223 on the tea leaves during kneading.

[0049] like Figures 2-3 As shown, the feeding unit 1 includes a frame 4, on which a vertical elevator 11 is mounted. A rail-type feeding trolley 12 is mounted below the vertical elevator 11. A feeding trolley conveyor belt motor 121 is mounted on the rail-type feeding trolley 12. The rail-type feeding trolley 12 is supported by a rail frame 41. A control traction motor 122 is mounted on the rail frame 41. The control traction motor 122 can drive the drive wheel 123 to rotate forward and backward, thereby driving the traction belt 124 mounted on it to move. The traction belt 124 drives the rail-type feeding trolley 12 to move back and forth. A feeding conveyor belt 13 is mounted below the rail-type feeding trolley 12. The movement of the feeding conveyor belt 13 is controlled by a control motor 131. A feeding auxiliary chute 14 is mounted below the feeding conveyor belt 13.

[0050] like Figure 2 As shown, it illustrates the situation of four sets of kneading machines, which are defined from left to right as kneading machine 1 (21), kneading machine 22, kneading machine 3 (23), and kneading machine 4 (24). Figure 2 In the state shown, the two ends of the track-type feeding car 12 correspond to the No. 2 kneading machine 22 and the No. 4 kneading machine 24, respectively. At this time, by controlling the back and forth movement of the track-type feeding car 12, the tea leaves on it can be transported to the feeding conveyor belt 13 below to realize feeding.

[0051] The rolling processing unit 2 includes at least two sets of parallel rolling machines for rolling tea leaves.

[0052] The discharge unit 3 includes the discharge cylinder 31 and the discharge conveyor belt 33 located below the discharge cylinder 31. During the discharge operation, the discharge port 34 of the discharge cylinder 31 will evenly discharge the tea leaves onto the discharge conveyor belt 33.

[0053] Control unit 5 can be a conventional control device. The control device can be any applicable computing device, such as a personal computer, server, programmable controller, microcontroller, etc., or it can be an integration of computer devices. The control device has functions such as receiving information and sending control commands. The control device can control each device to perform corresponding actions through wired or wireless communication to complete the control work of each component.

[0054] Example 5: Based on any of the above embodiments, this embodiment proposes a control method based on the dynamic-static conversion of the prism, including the following steps: Step 1: Use the pressure cylinder 21221 to drive the pressure cover 21223 to rise until it is separated from the kneading drum 2118. Then, use the rotary motor 2123 to drive the pressure arm 2122 and the pressure cover 21223 to rotate at a certain angle, so that the top of the kneading drum 2118 is open. Add the tea leaves to be kneaded into the kneading drum 2118, and then reset the pressure cover 21223 and apply pressure to the tea leaves in the kneading drum 2118. Step 2: Start the drive source and the self-rotating motor 2116, so that the kneading drum 2118 performs a circular motion and a self-rotating motion at the same time, and maintain this compound motion for a specified kneading time. During this process, the ribs 311 and the convex ribs work together to knead the tea leaves. Step 3: After the specified kneading time is completed, the kneading ends. Continue the compound motion of the kneading drum 2118. At the same time, the discharge motor 32 starts and drives the rotating shaft 313 to rotate. The rotating ribs 311 are used to break up and knead the tea leaves, and the rotating spiral guide blades 312 are used to guide the tea leaves to be discharged.

[0055] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A tea rolling machine, comprising a rolling disc (2119) with raised ridges, a rolling drum (2118) disposed above the rolling disc (2119), a pressure cap (21223) adapted to the rolling drum (2118), and a drive source for driving the rolling drum (2118) to rotate in a circular motion, characterized in that: A discharge cylinder (31) is coaxially installed at the center of the kneading disc (2119). The upper opening of the discharge cylinder (31) is flush with the upper surface of the kneading disc (2119), and a discharge port is provided on the side of the discharge cylinder (31). The discharge cylinder (31) is coaxially installed with a rotating shaft (313) that can rotate on its own axis. The rotating shaft (313) is provided with a spiral guide blade (312) extending along its axial direction. The top of the rotating shaft (313) is provided with a rib (311). The rotating shaft (313) remains stationary during the kneading process so that the ribs (311) and the convex ribs can knead the tea leaves together. The rotating shaft (313) rotates during the discharge process, driving the ribs (311) and the spiral guide blades (312) to rotate, so as to break up the tea leaves and guide them to the discharge.

2. The tea rolling machine according to claim 1, characterized in that, The drive source includes three sets of kneading motors (2112) mounted on the base (6), and each set of kneading motors (2112) has a crank arm (2111) movably connected to its output shaft. A rotary frame (2113) is movably mounted on each of the three sets of crank arms (2111), and the kneading drum (2118) is mounted on the rotary frame (2113).

3. A tea rolling machine according to claim 2, characterized in that, It also includes a power source set on the rotating frame (2113), which is used to drive the kneading drum (2118) to rotate, so that the kneading drum (2118) can perform rotational motion in addition to circular motion.

4. A tea rolling machine according to claim 3, characterized in that, The power source includes a self-rotating motor (2116) mounted on a rotating frame (2113). The output shaft of the self-rotating motor (2116) is fixedly equipped with a gear (2115). A connecting ring (2117) is fixedly sleeved on the outside of the kneading drum (2118). A toothed ring (2114) is fixedly sleeved on the outside of the connecting ring (2117), and the toothed ring (2114) meshes with the gear (2115) for transmission.

5. A tea rolling machine according to claim 3 or 4, characterized in that, During the discharge operation, the rotation speed of the rib (311) is different from the rotation speed of the kneading drum (2118).

6. A tea rolling machine according to claim 1, characterized in that, The lower end of the discharge cylinder (31) is fixedly equipped with a discharge motor (32), and the output shaft of the discharge motor (32) is connected to the rotating shaft (313) for transmission.

7. A tea rolling machine according to any one of claims 2-4, characterized in that, A column (2121) is fixedly installed on the rotating frame (2113). A pressure arm (2122) is coaxially and rotatably mounted on the column (2121). A pressure cylinder (21221) is fixedly installed on the pressure arm (2122). A pressure cover (21223) is installed on the output end of the pressure cylinder (21221). A pressure sensor (51) is provided in the inner cavity of the pressure cylinder (21221). A rotary motor (2123) for driving the pressure arm (2122) to rotate is fixedly installed on the column (2121). An angle limit switch (2124) for detecting the rotation angle of the pressure arm (2122) is provided on the column (2121).

8. A tea rolling machine according to any one of claims 2-4, characterized in that, A photoelectric sensor (52) is provided on the base (6), and the movement path of the crank arm (2111) intersects the sensing range of the photoelectric sensor (52).

9. A tea rolling machine unit using any one of claims 1-8, characterized in that, It includes at least two sets of kneading machines and a vertical elevator (11). A rail-type feeding car (12) is provided below the discharge port of the vertical elevator (11). A feeding conveyor belt (13) is provided between the rail-type feeding car (12) and the kneading machine, and a feeding auxiliary slide (14) is provided between the feeding conveyor belt (13) and the top opening of the kneading drum (2118).

10. A control method based on the dynamic-static conversion of the ribs in a tea rolling machine according to any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Use the pressurizing cylinder (21221) to drive the pressure cap (21223) to rise until it is separated from the kneading drum (2118). Then, use the rotary motor (2123) to drive the pressurizing arm (2122) and the pressure cap (21223) to rotate at a certain angle, so that the top of the kneading drum (2118) is open. Add the tea leaves to be kneaded into the kneading drum (2118), and then reset the pressure cap (21223) and apply pressure to the tea leaves in the kneading drum (2118). Step 2: Start the drive source and the self-rotating motor (2116) so that the kneading drum (2118) performs a circular motion and a self-rotating motion at the same time. Maintain this compound motion for a specified kneading time. During this process, the ribs (311) and the convex ribs knead the tea leaves together. Step 3: After the specified kneading time is completed, the kneading ends and the compound motion of the kneading drum (2118) continues. At the same time, the discharge motor (32) starts and drives the rotating shaft (313) to rotate. The rotating rib (311) is used to break up and knead the tea leaves, and the rotating spiral guide blade (312) is used to guide the tea leaves to discharge.

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