Sterilization device used before Pu'er tea cake pressing

Abstract

The utility model relates to the field of Pu'er tea sterilization, and discloses a Pu'er tea pre-cake-pressing sterilization device which comprises a base, the top of the base is fixedly connected with a box body, the top of the box body is fixedly connected with a feeding box, the top of the base is fixedly connected with a fixing seat, and the top of the fixing seat is fixedly connected with a stepping motor. A round plate is fixedly connected to the rear side of an output shaft of the stepping motor, a threaded hole is formed in the rear side of the round plate, a threaded rod is installed in the threaded hole in a threaded mode, and a sleeve is connected to the circumferential surface of the threaded rod in a threaded mode. According to the Pu'er tea sterilizing device, tea leaves in the shaking barrel can be turned and rolled through the operation of the stepping motor, the Pu'er tea leaves are prevented from being stacked together, the sterilizing effect is further improved, compared with the mode that the Pu'er tea leaves are turned by a turning rod, the operation is softer, and the number of the Pu'er tea leaves which are shredded into powder is reduced to a certain extent; and the subsequent cake pressing quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of Pu-erh tea sterilization, and in particular to a sterilization device for Pu-erh tea before pressing into cakes. Background Technology

[0002] After the Pu'er tea production line is completed, before the pressing and packaging processes, the tea needs to be sent to a sterilization device for sterilization to ensure the hygiene and quality of the tea and the quality of the pressed cakes. Generally, the tea is sterilized by physical sterilization through ultraviolet irradiation. The wavelength of the ultraviolet lamp used is usually 253.7nm, which has a strong killing effect on bacteria, viruses and other microorganisms.

[0003] A search revealed Chinese Patent Publication No. CN217389865U, which discloses a sterilization device for Pu-erh tea before pressing into cakes. The device includes a sterilization cylinder with support plates on both sides of its bottom. A discharge hole is located at the bottom of the cylinder, and a first cover plate is inserted into the discharge hole. A first top plate is located at the top of the cylinder. Ultraviolet sterilization lamps are evenly arranged at the bottom front and back of the first top plate. The power cord of the ultraviolet sterilization lamp passes through the first top plate and is connected to an external power source. Studs are connected to both sides of the first top plate, and the studs pass through the sterilization cylinder and are screwed with nuts. A rotating shaft is rotatably mounted inside the sterilization cylinder, and turning rods are evenly arranged at the front and back of the rotating shaft within the sterilization cylinder.

[0004] This patent uses a motor to drive multiple turning rods to rotate inside the sterilization cylinder, continuously lifting and turning the tea leaves. While this allows for the sterilization of a larger quantity of tea leaves at once without manual turning, the delicate nature of Pu-erh tea means that the motor-driven turning rods can easily tear the leaves into small fragments, reducing the quality of the pressed tea cakes. Therefore, after sterilization, a screening and filtration process is required to minimize tea breakage. However, this adds an extra step, increasing workload and potentially causing secondary bacterial contamination during screening and filtration, further reducing sterilization effectiveness. Therefore, this patent proposes a pre-pressing sterilization device for Pu-erh tea to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a sterilization device before pressing Pu'er tea cakes, which aims to improve the problem in the prior art that "Pu'er tea leaves are easily torn during the turning process, which in turn forms a lot of small tea dust fragments and reduces the quality of the subsequent pressing cakes".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sterilization device for Pu'er tea cake pressing, comprising a base, a box fixedly connected to the top of the base, a feeding box fixedly connected to the top of the box, a fixed seat fixedly connected to the top of the base, a stepper motor fixedly connected to the top of the fixed seat, a circular plate fixedly connected to the rear side of the output shaft of the stepper motor, a threaded hole opened on the rear side of the circular plate, a threaded rod threadedly installed inside the threaded hole, a sleeve threadedly connected to the circumferential surface of the threaded rod, a connecting rod rotatably connected to the outer wall of the sleeve, a swing rod hinged to the end of the connecting rod away from the sleeve, and a sterilization mechanism provided inside the base.

[0007] As a further description of the above technical solution:

[0008] The number of threaded holes is set to multiple, and the multiple threaded holes are arranged in a straight line at equal intervals on the rear side of the circular plate.

[0009] As a further description of the above technical solution:

[0010] The center of the circular plate lies on the straight line traversed by the multiple threaded holes.

[0011] As a further description of the above technical solution:

[0012] The sterilization mechanism includes a rotating shaft that is rotatably mounted on the inner wall of the chamber, and the rear part of the circumferential surface of the rotating shaft is fixedly connected to the end of the swing rod away from the connecting rod.

[0013] As a further description of the above technical solution:

[0014] The sterilization mechanism also includes a mounting frame, which is fixedly mounted on the circumferential surface of the rotating shaft. A shaking bucket is provided at the bottom of the mounting frame, and a fixing mechanism is provided inside the mounting frame.

[0015] As a further description of the above technical solution:

[0016] The sterilization mechanism also includes a handle and an ultraviolet germicidal lamp. The handle is fixedly installed on the front of the shaking bucket, and the ultraviolet germicidal lamp is fixedly installed on the top of the inner wall of the box. The front of the box is hinged with a door.

[0017] As a further description of the above technical solution:

[0018] The fixing mechanism includes a protrusion, which is fixedly installed on the top of the shaking barrel, and the bottom of the mounting frame has a groove that matches the protrusion.

[0019] As a further description of the above technical solution:

[0020] The protrusion is T-shaped and is inserted into the inner wall of the groove. The protrusion is fixedly connected by fixing bolts and mounting frame.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the tea leaves inside the shaking barrel can be tumbled and rolled by the cooperation of a stepper motor, a circular plate, a connecting rod, a swing rod, a rotating shaft, a mounting frame, and a shaking barrel, which prevents the Pu'er tea leaves from piling up and thus improves the sterilization effect. Compared with the turning rod turning the Pu'er tea leaves, the operation is gentler and reduces the amount of Pu'er tea leaves torn into pieces to a certain extent, thereby improving the quality of the subsequent pressed cakes.

[0023] 2. In this utility model, by cooperating with the threaded rod, threaded hole, and sleeve, the threaded rod is tightened into the threaded hole installed in other positions, which can change the distance between the threaded rod and the center of the circular plate, thereby changing the swing amplitude of the swing rod and the rotating shaft, thus changing the turning effect on the Pu'er tea leaves and improving the control accuracy. Attached Figure Description

[0024] Figure 1 This is a front view of the overall three-dimensional structure of this utility model;

[0025] Figure 2 This is a rear view schematic diagram of the overall three-dimensional structure of this utility model;

[0026] Figure 3 This is a three-dimensional exploded view of the fixed base, stepper motor, circular plate, threaded rod, threaded hole, sleeve, connecting rod, and swing rod in this utility model;

[0027] Figure 4 This is a three-dimensional cross-sectional view of the base, housing, and sterilization mechanism in this utility model;

[0028] Figure 5 This is a rear view schematic diagram of the overall planar structure of this utility model.

[0029] Legend:

[0030] 1. Base; 2. Box body; 3. Feed box; 4. Fixed seat; 5. Stepper motor; 6. Round plate; 7. Threaded rod; 8. Threaded hole; 9. Sleeve; 10. Connecting rod; 11. Swing rod; 12. Rotating shaft; 13. Mounting frame; 14. Shaking barrel; 15. Protrusion; 16. Fixing bolt; 17. Handle; 18. Box door; 19. Ultraviolet germicidal lamp. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a sterilization device for Pu'er tea cake pressing, including a base 1, which provides stable support and improves the stability of the device during operation. A box 2 is fixedly connected to the top of the base 1, and a feeding box 3 for feeding Pu'er tea leaves to be sterilized into a shaking bucket 14 inside the box 2 is fixedly connected to the top of the box 1. A fixed seat 4 is fixedly connected to the top of the base 1, which provides fixed support. A stepper motor 5 is fixedly connected to the top of the fixed seat 4. The stepper motor 5 can precisely control the rotation angle of its output shaft, improving the control accuracy. A cylindrical plate 6 is fixedly connected to the rear side of the output shaft of the stepper motor 5. A threaded hole 8 that cooperates with a threaded rod 7 is opened on the rear side of the cylindrical plate 6.

[0033] Reference Figure 2 , Figure 3 , Figure 5 Multiple threaded holes 8 are arranged in a straight line at equal intervals on the rear side of the circular plate 6. By installing and fixing the threaded rod 7 inside the threaded holes 8 at different positions, the distance between the threaded rod 7 and the center of the circular plate 6 can be adjusted, thereby improving the control accuracy. The center of the circular plate 6 lies on the straight line traversed by the multiple threaded holes 8, improving the stability of the circular plate 6 during rotation. The threaded rod 7 is installed inside the threaded hole 8. The engagement between the threaded rod 7 and the threaded hole 8 has a self-locking characteristic, ensuring the stability of the connection. A knob is provided on the rear side of the threaded rod 7, which is convenient for the operator to rotate the threaded rod 7, saving effort. A sleeve 9 is threadedly connected to the circumferential surface of the threaded rod 7. The thread direction inside the sleeve 9 is the same as the thread direction inside the threaded hole 8, ensuring that when the threaded rod 7 is removed from the threaded hole 8, the thread inside the sleeve 9 will not interfere with the displacement of the threaded rod 7. A connecting rod 10 is rotatably connected to the outer wall of the sleeve 9 in an inclined state. A swing rod 11 is hinged to the end of the connecting rod 10 away from the sleeve 9.

[0034] Reference Figure 2 , Figure 4 , Figure 5The base 1 is equipped with a sterilization mechanism, which includes a horizontally positioned rotating shaft 12. The rotating shaft 12 is mounted on the inner wall of the housing 2 through and rotatably. The rear part of the circumferential surface of the rotating shaft 12 is fixedly connected to the end of the swing rod 11 away from the connecting rod 10. The circular plate 6, the connecting rod 10, and the swing rod 11 cooperate to achieve an effect similar to a crank-rocker mechanism. The line segment formed by the center of the circular plate 6 and the threaded rod 7 is the crank and is the shortest rod. The sum of the lengths of the shortest rod and the longest rod is less than the sum of the lengths of the other two rods. When the stepper motor 5 is working, it drives the swing rod 11 and the rotating shaft 12 to swing back and forth at different speeds through the transmission action of the circular plate 6 and the connecting rod 10.

[0035] Reference Figure 1 , Figure 4 The sterilization mechanism also includes a mounting frame 13 initially set to a horizontal state. The mounting frame 13 is fixedly mounted on the circumferential surface of the rotating shaft 12. A shaking bucket 14 containing Pu'er tea leaves is set at the bottom of the mounting frame 13. A fixing mechanism is set inside the mounting frame 13. The sterilization mechanism also includes a handle 17 and an ultraviolet germicidal lamp 19. The ultraviolet light emitted by the ultraviolet germicidal lamp 19 can sterilize the Pu'er tea leaves, facilitating the subsequent packaging and pressing of the Pu'er tea leaves. The handle 17 is fixedly mounted on the front of the shaking bucket 14. The shaking bucket 14 can be removed from the inside of the box 2 through the handle 17, so that the Pu'er tea leaves can be packaged and pressed into cakes. The ultraviolet germicidal lamp 19 is fixedly mounted on the top of the inner wall of the box 2, increasing the irradiation area of ​​the ultraviolet germicidal lamp 19. With the shaking of the shaking bucket 14, the tea leaves are reduced from gathering and tangling together, further increasing the uniformity of sterilization irradiation. A door 18 is hinged to the front of the box 2.

[0036] Reference Figure 4 The fixing mechanism includes a protrusion 15, which is fixedly installed on the top of the shaking barrel 14. The bottom of the mounting frame 13 has a groove that matches the protrusion 15. The protrusion 15 is T-shaped. The cooperation between the protrusion 15 and the groove improves the stability of the connection between the shaking barrel 14 and the mounting frame 13. The protrusion 15 is inserted into the inner wall of the groove. The protrusion 15 is fixedly connected to the mounting frame 13 by fixing bolts 16, which facilitates the installation and disassembly of the shaking barrel 14 and the mounting frame 13. At the same time, it improves the relative stability of the shaking barrel 14 and the mounting frame 13 when the equipment is working.

[0037] Working principle: During use, the Pu'er tea leaves to be sterilized are put into the shaking barrel 14 inside the box 2 through the feeding box 3. Then, the power of the stepper motor 5 is turned on. The stepper motor 5 drives the circular plate 6 to rotate. The rotation of the circular plate 6 pulls or pushes the swing rod 11 to swing back and forth through the connecting rod 10. The swing rod 11 swings and drives the rotating shaft 12 to swing back and forth. The swing shaft 12 swings and drives the shaking barrel 14 to swing back and forth. The swinging of the shaking barrel 14 makes the Pu'er tea leaves inside the shaking barrel 14 constantly turn and roll, preventing the Pu'er tea leaves from piling up together. This increases the contact opportunity between the Pu'er tea leaves at the bottom of the shaking barrel 14 and the ultraviolet sterilization lamp 19, thereby improving the sterilization effect.

[0038] Based on the above work, and when the stepper motor 5 stops, by loosening the threaded rod 7 and removing it from the rear side of the circular plate 6, and then tightening the threaded rod 7 into the threaded hole 8 installed in another position, the distance between the threaded rod 7 and the center of the circular plate 6 can be changed, thereby changing the swing amplitude of the swing rod 11 and the rotating shaft 12, thus changing the turning effect on the Pu'er tea leaves, further improving the uniformity of sterilization irradiation, ensuring the sterilization effect, and improving the control accuracy.

[0039] After sterilization is completed, open the box door 18, then loosen the fixing bolts 16 to release the fixing of the mounting frame 13 and the shaking barrel 14. Then pull the handle 17 forward so that the shaking barrel 14 drives the protrusion 15 to disengage from the groove at the bottom of the mounting frame 13. This allows the shaking barrel 14 to be removed from the inside of the box 2, facilitating the subsequent packaging and pressing of the tea inside the shaking barrel 14.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sterilization device for Pu'er tea cake before pressing, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected with a box body (2), the top of the box body (2) is fixedly connected with a feeding box (3), the top of the base (1) is fixedly connected with a fixed seat (4), the top of the fixed seat (4) is fixedly connected with a stepping motor (5), the rear side of the output shaft of the stepping motor (5) is fixedly connected with a circular plate (6), the rear side of the circular plate (6) is provided with a threaded hole (8), the inside of the threaded hole (8) is screwed with a threaded rod (7), the circumferential surface of the threaded rod (7) is screwed with a sleeve (9), the outer wall of the sleeve (9) is rotatably connected with a connecting rod (10), the end of the connecting rod (10) away from the sleeve (9) is hingedly connected with an oscillating rod (11), and the inside of the base (1) is provided with a sterilization mechanism.

2. The device according to claim 1, wherein the device is characterized in that: The threaded holes (8) are provided in plurality, and the plurality of threaded holes (8) are linearly and equidistantly arranged on the rear side of the circular plate (6).

3. The device according to claim 2, wherein the device is characterized in that: The center of the circular plate (6) is on the straight line passing through the plurality of threaded holes (8).

4. The device according to claim 1, wherein the device is characterized in that: The sterilization mechanism comprises a rotating shaft (12), the rotating shaft (12) penetrates and is rotatably installed on the inner wall of the box body (2), and the circumferential surface of the rear part of the rotating shaft (12) is fixedly connected with the end of the oscillating rod (11) away from the connecting rod (10).

5. The device according to claim 4, wherein the device is characterized in that: The sterilization mechanism further comprises a mounting frame (13), the mounting frame (13) is fixedly installed on the circumferential surface of the rotating shaft (12), the bottom of the mounting frame (13) is provided with a shaking barrel (14), and the inside of the mounting frame (13) is provided with a fixing mechanism.

6. The device according to claim 4, characterized in that: The sterilization mechanism further comprises a handle (17) and an ultraviolet sterilization lamp (19), the handle (17) is fixedly installed on the front of the shaking barrel (14), the ultraviolet sterilization lamp (19) is fixedly installed on the inner wall of the top of the box body (2), and the front of the box body (2) is hingedly connected with a box door (18).

7. The device according to claim 5, characterized in that: The fixing mechanism comprises a protruding block (15), the protruding block (15) is fixedly installed on the top of the shaking barrel (14), and the bottom of the mounting frame (13) is provided with a groove matched with the protruding block (15).

8. The device according to claim 7, characterized in that: The shape of the protruding block (15) is T-shaped, the protruding block (15) is inserted into the inner wall of the groove, and the protruding block (15) is fixedly connected with the mounting frame (13) through the fixing bolt (16).

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