Automatic pressure regulating device for tea rolling
By using a support spring and a rod limiting structure in the tea rolling machine, combined with a servo motor and a pressure sensor, the problem of poor support rod stability was solved, automatic pressure adjustment was achieved, and the stability and efficiency of tea processing were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 铜仁市现代农业产业发展招商服务中心
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-02
Smart Images
Figure CN224306699U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automatic adjustment device technology, specifically to an automatic pressure adjustment device during the tea rolling process. Background Technology
[0002] Tea rolling machines are essential equipment in tea processing, playing a crucial role in the tea-making process. They simulate the action of manual rolling to roll the withered tea leaves. Under the action of rotation and pressure, the tea cells are moderately broken down, allowing tea juice to seep out and adhere to the leaf surface. This facilitates subsequent fermentation and shapes the tea leaves, resulting in tightly rolled and curled leaves. They are easy to operate, highly efficient, and can significantly improve the yield and quality stability of tea processing, making them vital equipment for modern large-scale tea production.
[0003] Chinese patent CN218073339U discloses a tea rolling machine, including a support and a tea barrel. The machine further includes a barrel bottom telescopic mechanism located at the bottom of the tea barrel to protect the tea fibers at the bottom. The machine places tea leaves inside the tea barrel and rotates a shaft. The shaft, via a drive rod, rotates the tea barrel above a base, causing the tea leaves inside to be rolled and kneaded by the combined action of a pulsator and the tea barrel. When the tea barrel passes over tea leaves scattered on top of the pulsator, a compression ring at the bottom of the tea barrel compresses a spring upwards. This compression ring then slides into the tea barrel via a sliding rod, causing it to contract upwards. This prevents excessive pressure on the tea leaves at the bottom of the tea barrel, effectively reducing tea breakage during rolling and improving the machine's performance.
[0004] The tea rolling machine described in the aforementioned patent document uses a horizontal support rod at the top of the tea barrel. However, one end of the support rod is suspended in the air, resulting in insufficient load-bearing capacity, easy bending, and poor stability. Therefore, an automatic pressure adjustment device for the tea rolling process is proposed. Utility Model Content
[0005] To address the aforementioned problems, an automatic pressure adjustment device is provided during the tea-rolling process. A support spring pushes a support member upwards along the central axis of the second support rod, causing a rod at the top of the support member to insert into a socket. This engagement of the rod and socket limits the movement of the crossbeam, preventing it from shifting. The bottom of the crossbeam, away from the first support rod, contacts the upper surface of the support member, providing support for that end of the crossbeam. This solves the instability problem.
[0006] To address the existing technical problems, this application provides an automatic pressure adjustment device for tea rolling process, applied to a tea rolling machine, including a material box, a first support rod disposed on one side of the material box, a crossbeam hinged to the top of the first support rod, and a second support rod disposed on the other side of the material box, wherein the crossbeam has a longitudinal insertion hole at the end away from the first support rod;
[0007] The top of the second support rod is equipped with a support member that can move longitudinally along its central axis and support one end of the crossbeam. A plug rod that is adapted to the socket is longitudinally fixed on the side of the top of the support member near the second support rod. The plug rod can be inserted into the socket.
[0008] A support base is fixed near the top of the second support rod. A support spring for supporting the support member is provided on the top of the support base, and the support spring is fitted onto the outside of the second support rod.
[0009] As one technical solution of this application, a limiting groove is longitudinally formed at the top end of the second support rod;
[0010] The inner wall of the support component is longitudinally provided with a limiting block that slides in conjunction with the limiting groove.
[0011] As one technical solution of this application, the top end of the first support rod is fixed with a hinged seat for mounting the crossbeam.
[0012] As one technical solution of this application, a driven gear capable of rotating around its central axis is provided at the center of the lower end face of the crossbeam, and a lead screw is longitudinally installed at the center of the driven gear, and the lead screw is threadedly connected to the driven gear.
[0013] A drive gear that meshes with the driven gear is rotatably disposed on the lower end face of the crossbeam near the side of the driven gear.
[0014] A servo motor with an output shaft extending to its lower end face is fixed to the upper end face of the crossbeam, and the drive gear is fixed on the output shaft of the servo motor.
[0015] As one technical solution of this application, a pressure sensor electrically connected to a servo motor is fixed at the bottom end of the lead screw, and a pressure plate for pressing material is fixed at the bottom end of the pressure sensor.
[0016] As one technical solution of this application, the crossbeam is provided with a plurality of sliding holes for limiting the position at equal intervals around its central axis;
[0017] The top of the pressure plate is longitudinally fixed with a slide rod that can be inserted into the slide hole, and the slide rod slides in conjunction with the slide hole.
[0018] As one technical solution of this application, the top end of the second support rod is fixed with an anti-detachment sleeve to prevent the support from falling off.
[0019] As one technical solution of this application, a handle is fixed to the lower end face of the support member near the second support rod.
[0020] The advantages of this utility model compared to the prior art are:
[0021] This application utilizes a support spring to push the support member upwards along the central axis of the second support rod, causing the insert rod at the top of the support member to insert into the insertion hole. This allows the insert rod to engage with the insertion hole, limiting the movement of the crossbeam and preventing it from shifting. The bottom of the crossbeam, at the end furthest from the first support rod, contacts the upper surface of the support member, providing support to that end of the crossbeam. This solves the problem of instability. Attached Figure Description
[0022] Figure 1 A three-dimensional structural diagram of an automatic pressure adjustment device during tea rolling. Figure 1 .
[0023] Figure 2 A three-dimensional structural diagram of an automatic pressure adjustment device during tea rolling. Figure 2 .
[0024] Figure 3 This is an exploded view of an automatic pressure adjustment device used in the tea rolling process.
[0025] Figure 4 This is a three-dimensional diagram of the second support rod in an automatic pressure adjustment device during the tea rolling process.
[0026] Figure 5 This is a three-dimensional diagram of the pressure plate in an automatic pressure adjustment device during the tea rolling process.
[0027] Figure 6 This is a three-dimensional diagram of the crossbeam in an automatic pressure adjustment device during the tea rolling process.
[0028] Figure 7 This is a three-dimensional diagram of a support component in an automatic pressure adjustment device during the tea rolling process.
[0029] The following are the labels in the diagram: 1. Material box; 2. First support rod; 21. Hinge seat; 3. Second support rod; 31. Support seat; 32. Support spring; 33. Limiting groove; 34. Anti-detachment sleeve; 4. Support component; 41. Limiting block; 42. Insert rod; 43. Handle; 5. Crossbeam; 51. Sliding hole; 52. Driven gear; 53. Insertion hole; 6. Pressure plate; 61. Sliding rod; 7. Lead screw; 71. Pressure sensor; 8. Servo motor; 81. Drive gear. Detailed Implementation
[0030] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.
[0031] See Figures 1-7 As shown, an automatic pressure adjustment device for tea rolling process is applied to a tea rolling machine, including a material box 1, a first support rod 2 set on one side of the material box 1, a crossbeam 5 hinged to the top of the first support rod 2 and a second support rod 3 set on the other side of the material box 1, and the crossbeam 5 has a longitudinal insertion hole 53 at the end away from the first support rod 2.
[0032] The top of the second support rod 3 is equipped with a support member 4 that can move longitudinally along its central axis and support one end of the crossbeam 5. The top of the support member 4 is longitudinally fixed with a plug rod 42 that is adapted to the insertion hole 53 near the side of the second support rod 3. The plug rod 42 can be inserted into the insertion hole 53.
[0033] The second support rod 3 is fixed with a support base 31 near the top. The top of the support base 31 is provided with a support spring 32 for supporting the support member 4. The support spring 32 is fitted on the outside of the second support rod 3.
[0034] By moving the end of the crossbeam 5 away from the first support rod 2 to the top of the support member 4, and then pushing the support member 4 upward along the central axis of the second support rod 3 via the support spring 32, the insertion rod 42 at the top of the support member 4 is inserted into the insertion hole 53. This allows the insertion rod 42 to engage with the insertion hole 53, limiting the crossbeam 5 and preventing it from shifting. The bottom of the end of the crossbeam 5 away from the first support rod 2 contacts the upper surface of the support member 4, allowing the support member 4 to support the end of the crossbeam 5 away from the first support rod 2, thereby increasing the load-bearing capacity of the crossbeam 5.
[0035] See Figure 4 , Figure 6 and Figure 7 As shown, a limiting groove 33 is longitudinally formed at the top of the second support rod 3;
[0036] The inner wall of the support member 4 is provided with a limiting block 41 that slides in conjunction with the limiting groove 33.
[0037] To ensure the stability of the support member 4, a limiting block 41 is provided on the inner wall of the support member 4. When the support member 4 moves longitudinally, the limiting block 41 slides within the limiting groove 33, effectively preventing the support member 4 from rotating around the central axis of the second support rod 3.
[0038] See Figure 1 , Figure 2 and Figure 3 As shown, the top end of the first support rod 2 is fixed with a hinge seat 21 for mounting the crossbeam 5.
[0039] To ensure an effective connection between the crossbeam 5 and the first support rod 2, a hinge seat 21 is fixed to the top of the first support rod 2, and then one end of the crossbeam 5 is hinged to the hinge seat 21, allowing the crossbeam 5 to rotate horizontally around the hinged end of the first support rod 2. This allows the crossbeam 5 to be moved away from the top of the material box 1, facilitating the addition of tea leaves into the material box 1.
[0040] See Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, a driven gear 52 capable of rotating around its central axis is provided at the center of the lower end face of the crossbeam 5. A lead screw 7 is longitudinally installed at the center of the driven gear 52, and the lead screw 7 is threadedly connected to the driven gear 52.
[0041] A drive gear 81 that meshes with the driven gear 52 is rotatably disposed on the lower end face of the crossbeam 5 near the side of the driven gear 52;
[0042] A servo motor 8 with an output shaft extending to its lower end face is fixed to the upper end face of the crossbeam 5, and the drive gear 81 is fixed on the output shaft of the servo motor 8.
[0043] To ensure the longitudinal movement of the lead screw 7, it is inserted into the driven gear 52, creating an internal threaded connection between the lead screw 7 and the driven gear 52. When the servo motor 8 drives the drive gear 81 to rotate, the drive gear 81 drives the driven gear 52 to rotate. The rotation of the driven gear 52 causes the lead screw 7 to move longitudinally.
[0044] As shown in Figure 6, a pressure sensor 71 electrically connected to a servo motor 8 is fixed to the bottom end of the lead screw 7, and a pressure plate 6 for pressing materials is fixed to the bottom end of the pressure sensor 71.
[0045] A pressure sensor 71 is fixed to the bottom end of the lead screw 7, and then the bottom end of the pressure sensor 71 is fixed to the top of the pressure plate 6. This allows the lead screw 7 to move longitudinally while the pressure sensor 71 drives the pressure plate 6 into the material box 1. As the pressure plate 6 descends, its lower surface compresses the tea leaves inside the material box 1. As the pressure plate 6 compresses the tea leaves, the tea leaves gradually become compacted, hindering the downward movement of the pressure plate 6. At this time, the pressure sensor 71 fixed to the top of the pressure plate 6 detects the pressure value. When the pressure sensor 71 detects that the pressure value exceeds the preset range, it sends the monitoring data to the servo motor 8, causing the servo motor 8 to stop running. When the pressure sensor 71 detects that the compressive force weakens, it sends the data to the servo motor 8, at which point the servo motor 8 restarts.
[0046] See Figure 1 ,Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, a number of sliding holes 51 for limiting are equidistantly provided on the crossbeam 5 around its central axis;
[0047] The top of the pressure plate 6 is longitudinally fixed with a slide rod 61 that can be inserted into the slide hole 51, and the slide rod 61 slides in conjunction with the slide hole 51.
[0048] To ensure the stability of the pressure plate 6, several sliding rods 61 are longitudinally fixed around the central axis at the top of the pressure plate 6. These sliding rods 61 are then inserted into the sliding holes 51. When the pressure plate 6 moves longitudinally, it drives the sliding rods 61 to move synchronously longitudinally. At this time, the sliding rods 61 slide along the sliding holes 51, thus allowing the sliding rods 61 and the sliding holes 51 to work together to limit the movement of the pressure plate 6. This effectively prevents the pressure plate 6 from shifting during movement.
[0049] See Figure 3 As shown, the top of the second support rod 3 is fixed with an anti-detachment sleeve 34 to prevent the support member 4 from falling off.
[0050] To prevent the support member 4 from detaching from the second support rod 3, an anti-detachment sleeve 34 is fixed to the top of the second support rod 3. When the support member 4 moves upward along the central axis of the second support rod 3, the top of the support member 4 contacts the bottom of the second support rod 3. This effectively blocks the support member 4 from continuing to move upward, thus preventing the support member 4 from detaching from the second support rod 3.
[0051] See Figure 4 and Figure 7 As shown, a handle 43 is fixed to the lower end face of the support member 4 near the side of the second support rod 3.
[0052] The handle 43 is longitudinally fixed to the lower end face of the support member 4. By holding the handle 43 and pulling the handle 43, the support member 4 is driven downward along the central axis of the second support rod 3.
[0053] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.
Claims
1. An automatic pressure adjustment device for tea rolling process, applied to a tea rolling machine, comprising a material box (1), a first support rod (2) disposed on one side of the material box (1), a crossbeam (5) hinged to the top of the first support rod (2), and a second support rod (3) disposed on the other side of the material box (1), characterized in that, The crossbeam (5) has a longitudinal insertion hole (53) at the end away from the first support rod (2); The top of the second support rod (3) is equipped with a support member (4) that can move longitudinally along its central axis and support one end of the crossbeam (5). The top of the support member (4) is longitudinally fixed with a plug rod (42) that is adapted to the socket (53) near the side of the second support rod (3). The plug rod (42) can be inserted into the socket (53). The second support rod (3) has a support seat (31) fixed near the top. The top of the support seat (31) is provided with a support spring (32) for supporting the support member (4). The support spring (32) is fitted on the outside of the second support rod (3).
2. The automatic pressure adjustment device during tea rolling process according to claim 1, characterized in that, A limiting groove (33) is longitudinally opened at the top of the second support rod (3); The inner wall of the support member (4) is longitudinally provided with a limiting block (41) that slides in conjunction with the limiting groove (33).
3. The automatic pressure adjustment device during tea rolling process according to claim 1, characterized in that, The top end of the first support rod (2) is fixed with a hinge seat (21) for mounting the crossbeam (5).
4. The automatic pressure adjustment device during tea rolling process according to claim 1, characterized in that, A driven gear (52) capable of rotating around its central axis is provided at the center of the lower end face of the crossbeam (5). A lead screw (7) is longitudinally installed at the center of the driven gear (52), and the lead screw (7) is threadedly connected to the driven gear (52). The lower end face of the crossbeam (5) is rotatably provided with a drive gear (81) that meshes with the driven gear (52) near the side of the driven gear (52). A servo motor (8) with an output shaft extending to its lower end face is fixed on the upper end face of the crossbeam (5), and the drive gear (81) is fixed on the output shaft of the servo motor (8).
5. The automatic pressure adjustment device during tea rolling process according to claim 4, characterized in that, The bottom end of the lead screw (7) is fixed with a pressure sensor (71) electrically connected to the servo motor (8), and the bottom end of the pressure sensor (71) is fixed with a pressure plate (6) for pressing material.
6. The automatic pressure adjustment device during tea rolling process according to claim 1, characterized in that, The crossbeam (5) has several sliding holes (51) for limiting the position, which are equidistant from its central axis. The top of the pressure plate (6) is longitudinally fixed with a slide rod (61) that can be inserted into the slide hole (51), and the slide rod (61) slides in conjunction with the slide hole (51).
7. The automatic pressure adjustment device during tea rolling process according to claim 1, characterized in that, The top end of the second support rod (3) is fixed with an anti-detachment sleeve (34) to prevent the support (4) from falling off.
8. The automatic pressure adjustment device during tea rolling process according to claim 1, characterized in that, A handle (43) is fixed to the side of the lower end face of the support member (4) near the second support rod (3).