A tea rolling pressure self-adaptive control device
By designing an adaptive control device for tea rolling pressure, and utilizing a pressure transmitter and servo motor to achieve adaptive pressure control, the problems of large pressure detection error and uneven tea distribution in existing tea rolling machines are solved, thereby improving rolling efficiency and uniformity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI SHUANGSHI TEA IND CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-23
Smart Images

Figure CN224399757U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tea processing technology, and in particular to an adaptive control device for tea kneading pressure. Background Technology
[0002] Tea is a beverage made from the fresh leaves of the tea plant. Based on processing methods, it can be divided into six major categories: green tea, black tea, oolong tea, dark tea, white tea, and yellow tea. For example, West Lake Longjing green tea is unfermented, using high-temperature fixation to retain its natural nutrients and has a fresh taste; black tea, such as Qimen black tea, undergoes full fermentation, resulting in a bright red liquor and a mellow flavor. Tea rolling is a crucial step in tea making. A rolling machine applies pressure to the withered or fixed-green leaves, breaking down the leaf cells and causing tea juice to seep out and adhere to the leaf surface. This not only facilitates the release of flavor substances during brewing but also shapes the tea leaves, such as rolling strips into tight, straight strands. The degree and time of rolling vary depending on the tea; tender green tea is rolled lightly and for a short time, while black tea is rolled heavily and for a longer time to ensure full fermentation, ultimately forming the unique flavor and quality of each type of tea.
[0003] Tea rolling is divided into manual rolling and mechanical rolling. With the development of productivity, most tea factories use rolling machines to mechanically roll tea leaves. However, most existing rolling machines lack pressure sensing and adaptive pressure control mechanisms. During the rolling process, as the tea leaves gradually lose moisture and curl, their volume decreases, resulting in less pressure from the pressure plate. Some rolling machines automatically discharge the rolled tea leaves, which also reduces the pressure of the pressure plate. At this point, manual rotation of the handwheel is required to lower the pressure plate, resulting in wasted labor and difficulty in controlling the pressure. This can lead to problems with some tea leaves. Leaf rolling machines detect pressure and achieve automatic control by setting pressure sensors on the pressure control mechanism. However, these pressure sensors can only detect the overall pressure on the pressure cap and cannot detect the pressure on different parts of the rolling drum. When the tea leaves in the rolling drum accumulate on one side, the tea leaves on that side will squeeze the pressure plate, which will cause the pressure on the pressure cap to increase. In fact, the pressure on the tea leaves in other parts of the rolling drum is relatively small, which causes errors in the pressure detection results. This leads to incorrect adjustments by the pressure control mechanism. Furthermore, existing rolling machines cannot spread out the accumulated tea leaves.
[0004] Therefore, there is an urgent need to provide an adaptive control device for tea rolling pressure to solve the above problems. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a tea kneading pressure adaptive control device.
[0006] To solve the above-mentioned technical problems, the present invention provides a technical solution: a tea kneading pressure adaptive control device, including a mounting frame mechanism and a pressure plate mechanism. The mounting frame mechanism is fixed with a telescopic mechanism for changing the kneading pressure, and the mounting frame mechanism is also fixed with a control mechanism for processing data and controlling the operation of the equipment.
[0007] At least three sleeve cylinder mechanisms are fixed at the bottom end of the telescopic mechanism;
[0008] The inner side of the cylinder mechanism is sealed with a piston mechanism, and the end of the piston mechanism is fixed with a connecting mechanism. A pressure plate mechanism for pressurizing tea leaves is rotatably connected to the connecting mechanism.
[0009] The present invention is further configured such that: the mounting frame mechanism includes a gantry frame, a fixing frame is welded on the gantry frame, and a limit frame is also welded on the inner side of the gantry frame.
[0010] Through the above technical solution, the gantry frame, the fixing frame and the limiting frame are all made of stainless steel, which has high strength and corrosion resistance, and can effectively resist the moisture evaporated from the tea leaves during the kneading process. The fixing frame is U-shaped and has a round hole. The limiting frame is straight and has three limiting holes.
[0011] The present invention is further configured such that: the telescopic mechanism includes an electric push rod fixed on the gantry frame, the output end of the electric push rod is fixed with a mounting plate, and two limit rods are welded on the mounting plate.
[0012] With the above technical solution, when the electric push rod extends or retracts, the mounting plate will rise or fall accordingly. The electric push rod passes through the round hole on the fixed frame, which can improve the stability of the electric push rod. The output shaft and limit rod of the electric push rod pass through the limit hole on the limit frame, thereby ensuring the stability of the lifting and lowering of the mounting plate.
[0013] The present invention is further configured such that: the control mechanism includes an industrial computer fixed on a limit frame, an electronic screen is embedded and fixed on the industrial computer, and a control panel is also provided on the industrial computer.
[0014] Through the above technical solution, the industrial control computer is electrically connected to the electric actuator, which can control the extension and retraction of the electric actuator. The operator can interact with the industrial control computer through the control panel and electronic screen.
[0015] The present invention is further configured such that: the cylinder mechanism includes a cylinder body bolted to the mounting plate, a plurality of fixing lugs are integrally fixed on the cylinder body, a pressure transmitter is also fixed on the cylinder body, and a spring is welded to the bottom end of the cylinder body.
[0016] With the above technical solution, mounting holes are provided on the fixing ears, the cylinder body is fixed to the mounting plate by screws and fixing ears, at least three cylinder bodies are provided, and multiple cylinder bodies are distributed equidistantly in a circle, the cylinder bodies are filled with hydraulic oil, the pressure transmitter is electrically connected to the industrial control computer, the pressure transmitter can detect the pressure of the hydraulic oil and transmit the signal to the industrial control computer.
[0017] The present invention is further configured such that: the piston mechanism includes a piston plate movably disposed inside the cylinder body, a piston rod is connected to the bottom end of the piston plate, a connecting plate is fixed to the bottom end of the piston rod, and a screw hole is provided on the connecting plate.
[0018] Through the above technical solution, the piston plate and the cylinder body form a sealed space, thereby avoiding hydraulic oil leakage. When the connecting plate is pressed, the pressure is transmitted to the hydraulic oil through the piston rod and piston plate, so that the pressure can be detected by the pressure transmitter. The connecting plate is fixed to the bottom end of the spring. When the connecting plate is not pressed, the spring can quickly reset the piston plate.
[0019] The present invention is further configured such that: the connecting mechanism includes a seat body bolted to the bottom end of the connecting plate, the seat body having multiple reinforcing ribs integrally formed thereon, the seat body also having a connecting seat integrally formed thereon, and a slewing bearing welded to the outer side of the seat body.
[0020] Through the above technical solutions, the reinforcing ribs effectively improve the strength of the base and prevent the base from deforming. Multiple mounting holes are opened on the connecting seat so that it can be fixed with the connecting plate. The inner ring of the slewing bearing is fixed with the base.
[0021] The present invention is further configured such that: the pressure plate mechanism includes a plate body fixed to the outer ring of the slewing bearing, the bottom of the plate body is integrally formed with a twisted texture, the top of the plate body is fixed with a rotating shaft, and the top of the rotating shaft is connected to a servo motor.
[0022] Through the above technical solution, the electric push rod extension type allows the plate to pressurize the tea leaves. The pressure transmitter transmits the pressure signal to the industrial control computer, which controls the extension or retraction of the electric push rod according to the pressure level, thereby achieving adaptive pressure control. The servo motor drives the plate to rotate via the shaft, allowing the plate to rotate within the kneading drum, thus improving the kneading effect and efficiency. When there is a significant difference in pressure between multiple pressure transmitters, it indicates that the tea leaves are unevenly distributed within the kneading drum. At this time, the industrial control computer will control the servo motor to rotate forward or backward, causing the plate to rotate from the angle of high pressure to the angle of low pressure. This, in turn, transfers the accumulated tea leaves through the kneading lines, thereby improving the uniformity of the tea leaves within the drum and reducing pressure detection errors.
[0023] The beneficial effects of this utility model are as follows:
[0024] 1. This utility model, through the arrangement of a telescopic mechanism, a control mechanism, a sleeve cylinder mechanism, and a piston mechanism, enables the device to detect the kneading pressure of tea leaves and to achieve adaptive pressure control according to the kneading needs;
[0025] 2. By setting up a connecting mechanism and a pressure plate mechanism, this utility model enables the device to cooperate with the kneading drum for rotational kneading, thereby improving kneading efficiency. It can also drive the tea leaves by rotation, preventing the tea leaves from accumulating on one side of the kneading drum and improving the uniformity of tea leaf distribution inside the drum. Attached Figure Description
[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0027] Figure 2 This is a structural diagram of the mounting frame mechanism, telescopic mechanism, and control mechanism of this utility model;
[0028] Figure 3 This is a structural diagram of the cylinder sleeve mechanism of this utility model;
[0029] Figure 4 This is a structural diagram of the piston mechanism of this utility model;
[0030] Figure 5 This is a structural diagram of the connection mechanism of this utility model;
[0031] Figure 6 This is a structural diagram of the pressure plate mechanism of this utility model.
[0032] In the diagram: 1. Mounting frame mechanism; 101. Gantry frame; 102. Fixed frame; 103. Limiting frame; 2. Telescopic mechanism; 201. Electric push rod; 202. Mounting plate; 203. Limiting rod; 3. Control mechanism; 301. Industrial computer; 302. Electronic screen; 303. Control panel; 4. Cylinder mechanism; 401. Cylinder body; 402. Fixed lug; 403. Pressure transmitter; 404. Spring; 5. Piston mechanism; 501. Piston plate; 502. Piston rod; 503. Connecting plate; 504. Screw hole; 6. Connecting mechanism; 601. Seat; 602. Reinforcing rib; 603. Connecting seat; 604. Slewing bearing; 7. Pressure plate mechanism; 701. Plate body; 702. Twisted texture; 703. Rotating shaft; 704. Servo motor. Detailed Implementation
[0033] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0034] Please see Figures 1-6An adaptive control device for tea kneading pressure includes a mounting frame mechanism 1 and a pressure plate mechanism 7. The mounting frame mechanism 1 includes a gantry frame 101, a fixed frame 102 welded onto the gantry frame 101, and a limit frame 103 welded to the inner side of the gantry frame 101. The gantry frame 101, the fixed frame 102, and the limit frame 103 are all made of stainless steel, which has high strength and corrosion resistance, and can effectively resist the moisture evaporated from the tea leaves during the kneading process. The fixed frame 102 is inverted U-shaped and has a round hole. The limit frame 103 is straight and has three limit holes. The structure 1 is fixed with a telescopic mechanism 2 for changing the kneading pressure. The telescopic mechanism 2 includes an electric push rod 201 fixed on the gantry frame 101. The output end of the electric push rod 201 is fixed with a mounting plate 202. Two limit rods 203 are welded on the mounting plate 202. When the electric push rod 201 extends or retracts, the mounting plate 202 will rise or fall accordingly. The electric push rod 201 passes through the round hole on the fixed frame 102. The fixed frame 102 can improve the stability of the electric push rod 201. The output shaft of the electric push rod 201 and the limit rods 203 pass through the limit holes on the limit frame 103, thereby ensuring the stability of the lifting and lowering of the mounting plate 202.
[0035] like Figures 1-3 As shown, the mounting frame mechanism 1 is also fixed with a control mechanism 3 for processing data and controlling the operation of the equipment. The control mechanism 3 includes an industrial computer 301 fixed on the limit frame 103. An electronic screen 302 is embedded in the industrial computer 301. The industrial computer 301 is also equipped with a control panel 303. The industrial computer 301 is electrically connected to the electric push rod 201 and can control the extension and retraction of the electric push rod 201. The operator can interact with the industrial computer 301 through the control panel 303 and the electronic screen 302. At least three telescopic cylinder mechanisms 4 are fixed at the bottom of the telescopic mechanism 2. The telescopic cylinder mechanism 4 includes components bolted to the mounting plate 202. The cylinder body 401 has multiple fixed ears 402 integrally fixed on it. A pressure transmitter 403 is also fixed on the cylinder body 401. A spring 404 is welded to the bottom end of the cylinder body 401. The fixed ears 402 have mounting holes. The cylinder body 401 is fixed to the mounting plate 202 by screws and the fixed ears 402. There are at least three cylinder bodies 401, and the multiple cylinder bodies 401 are distributed equidistantly in a circle. The cylinder body 401 is filled with hydraulic oil. The pressure transmitter 403 is electrically connected to the industrial control computer 301. The pressure transmitter 403 can detect the pressure of the hydraulic oil and transmit the signal to the industrial control computer 301.
[0036] like Figure 1 , Figure 4 and Figure 5As shown, a piston mechanism 5 is sealed inside the cylinder mechanism 4. The piston mechanism 5 includes a piston plate 501 movably disposed inside the cylinder body 401. A piston rod 502 is connected to the bottom end of the piston plate 501, and a connecting plate 503 is fixed to the bottom end of the piston rod 502. A screw hole 504 is provided on the connecting plate 503. The piston plate 501 and the cylinder body 401 form a sealed space to prevent hydraulic oil leakage. When the connecting plate 503 is pressurized, the pressure is transmitted to the hydraulic oil through the piston rod 502 and the piston plate 501, so that the pressure can be detected by the pressure transmitter 403. The connecting plate 503 is fixed to the bottom end of the spring 404. When the connecting plate 503 is not under pressure, the spring 404 can quickly reset the piston plate 501. The piston mechanism 5 is fixed to the end of the connecting mechanism 6. The connecting mechanism 6 includes a seat 601 bolted to the bottom of the connecting plate 503. Multiple reinforcing ribs 602 are integrally formed on the seat 601. A connecting seat 603 is also integrally formed on the seat 601. A slewing bearing 604 is welded to the outside of the seat 601. The reinforcing ribs 602 effectively improve the strength of the seat 601 and prevent the seat 601 from deforming. Multiple mounting holes are opened on the connecting seat 603 so that it can be fixed to the connecting plate 503. The inner ring of the slewing bearing 604 is fixed to the seat 601.
[0037] like Figure 1 and Figure 6 As shown, a pressure plate mechanism 7 for pressurizing tea leaves is rotatably connected to the connecting mechanism 6. The pressure plate mechanism 7 includes a plate body 701 fixed to the outer ring of the slewing bearing 604. The bottom of the plate body 701 is integrally formed with a kneading texture 702. A rotating shaft 703 is fixed to the top of the plate body 701. A servo motor 704 is connected to the top of the rotating shaft 703. The electric push rod 201 is extendable. The plate body 701 can pressurize the tea leaves. The pressure transmitter 403 can transmit the pressure signal to the industrial control computer 301. The industrial control computer 301 controls the extension or retraction of the electric push rod 201 according to the pressure, thereby realizing... The pressure adaptive control system allows the servo motor 704 to drive the plate 701 to rotate via the shaft 703, thereby enabling the plate 701 to rotate within the kneading drum and improving the kneading effect and efficiency. When there is a significant difference in pressure between multiple pressure transmitters 403, it indicates that the tea leaves are unevenly distributed within the kneading drum. In this case, the industrial control computer 301 will control the servo motor 704 to rotate forward or backward, causing the plate 701 to rotate from the angle of high pressure to the angle of low pressure. This allows the accumulated tea leaves to be transferred through the kneading grooves 702, thereby improving the uniformity of the tea leaves within the drum and reducing pressure detection errors.
[0038] In use, this device is fixed to the kneading drum of the tea kneading machine via the gantry frame 101. After the operator adds an appropriate amount of tea leaves to the kneading drum, the kneading machine and the device can be turned on. The control mechanism 3 controls the lifting and lowering of the pressure plate mechanism 7 by detecting the pressure through the sleeve cylinder mechanism 4 and the piston mechanism 5, thereby keeping the pressure of the pressure plate mechanism 7 within a suitable range. At the same time, the pressure plate mechanism 7 can also rotate, thereby cooperating with the kneading drum to perform rotational kneading, improving kneading efficiency, and also driving the tea leaves to move, preventing the tea leaves from accumulating on one side of the kneading drum, causing uneven kneading or inaccurate pressure sensing.
[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A tea-rolling pressure adaptive control device, comprising a mounting frame mechanism (1) and a pressure plate mechanism (7), characterized in that: The mounting frame mechanism (1) is fixed with a telescopic mechanism (2) for changing the kneading pressure, and the mounting frame mechanism (1) is also fixed with a control mechanism (3) for processing data and controlling the operation of the equipment. At least three sleeve cylinder mechanisms (4) are fixed at the bottom end of the telescopic mechanism (2). The inner side of the sleeve cylinder mechanism (4) is sealed with a piston mechanism (5), and the end of the piston mechanism (5) is fixed with a connecting mechanism (6). A pressure plate mechanism (7) for pressurizing tea leaves is rotatably connected to the connecting mechanism (6).
2. The tea rolling pressure adaptive control device according to claim 1, characterized in that: The mounting frame mechanism (1) includes a gantry frame (101), a fixing frame (102) is welded on the gantry frame (101), and a limit frame (103) is also welded on the inner side of the gantry frame (101).
3. The tea rolling pressure adaptive control device according to claim 2, characterized in that: The telescopic mechanism (2) includes an electric push rod (201) fixed on the gantry frame (101), and an installation plate (202) is fixed to the output end of the electric push rod (201). Two limit rods (203) are welded on the installation plate (202).
4. The tea rolling pressure adaptive control device according to claim 2, characterized in that: The control mechanism (3) includes an industrial computer (301) fixed on a limit frame (103), an electronic screen (302) is embedded and fixed on the industrial computer (301), and a control panel (303) is also provided on the industrial computer (301).
5. The tea rolling pressure adaptive control device according to claim 3, characterized in that: The cylinder mechanism (4) includes a cylinder body (401) bolted to the mounting plate (202), a plurality of fixing ears (402) integrally fixed on the cylinder body (401), a pressure transmitter (403) also fixed on the cylinder body (401), and a spring (404) welded to the bottom end of the cylinder body (401).
6. The tea rolling pressure adaptive control device according to claim 5, characterized in that: The piston mechanism (5) includes a piston plate (501) movably disposed inside the cylinder body (401), a piston rod (502) connected to the bottom end of the piston plate (501), a connecting plate (503) fixed to the bottom end of the piston rod (502), and a screw hole (504) provided on the connecting plate (503).
7. The tea rolling pressure adaptive control device according to claim 6, characterized in that: The connecting mechanism (6) includes a seat (601) bolted to the bottom end of the connecting plate (503). Multiple reinforcing ribs (602) are integrally formed on the seat (601). A connecting seat (603) is also integrally formed on the seat (601). A slewing bearing (604) is welded to the outside of the seat (601).
8. The tea rolling pressure adaptive control device according to claim 7, characterized in that: The pressure plate mechanism (7) includes a plate (701) fixed to the outer ring of the slewing bearing (604). The bottom of the plate (701) is integrally formed with a twisted texture (702). The top of the plate (701) is fixed with a rotating shaft (703). The top of the rotating shaft (703) is connected to a servo motor (704).