Pu'er tea cake pressing device

By controlling the weight of the tea leaves using a weighing bracket and a weight sensor, and combining this with a pressing structure and a cylinder, precise pressing of the tea cakes is achieved. This solves the problem of inaccurate weight control of tea cakes and improves the efficiency of the pressing process and the consistency of tea cake quality.

CN224125169UActive Publication Date: 2026-04-17YUNNAN AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN AGRICULTURAL UNIVERSITY
Filing Date
2025-05-21
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In existing technologies, the weight control of tea leaves is not precise, making it difficult to achieve precise pressing of tea cakes.

Method used

It employs a weighing bracket, weighing device, weight sensor, and opening/closing device to control the weight of tea leaves through the weighing chamber, and combines a pressing structure and pressing cylinder to achieve precise pressing of tea cakes.

Benefits of technology

It achieves precise control over the weight of the tea cake, making the pressing process more convenient and efficient, and resulting in good consistency in the quality of the tea cake.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a Pu'er tea cake pressing device, which belongs to the technical field of cake tea production and comprises a weighing support and a weighing device, the weighing device comprises a weighing hopper, a weighing cavity is arranged in the weighing hopper, two ends of the weighing hopper penetrate through the weighing cavity, and the weighing cavity comprises a weighing inlet and a weighing outlet; the lower side face of one end of the weight sensor is fixedly connected with the weighing support, and the upper side face of the other end of the weight sensor is fixedly connected with the weighing hopper. The opening and closing device is used for opening or closing the weighing outlet; and the cake pressing structure is used for pressing the tea leaves output from the weighing outlet into cakes. When cake pressing is needed, the weight sensor can detect the weight of Pu'er tea leaves in the weighing cavity, when the needed weight is reached, the tea leaves are stopped from being conveyed into the weighing cavity, then the opening and closing device enables the tea leaves in the weighing outlet and the weighing cavity to enter the cake pressing structure for cake pressing, the tea cakes with the needed weight can be obtained, and the weight is well controlled.
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Description

Technical Field

[0001] This utility model belongs to the field of compressed tea production technology, specifically relating to a Pu'er tea pressing device. Background Technology

[0002] Tea cakes: also known as compressed tea cakes or round tea cakes. In the early Northern Song Dynasty, "Ding Jin Gong, as the transport commissioner of Fujian, first made Phoenix Round Tea Cakes," which were later made into Dragon Round Tea Cakes. Ouyang Xiu's *Gui Tian Lu* states, "Among teas, none is more precious than Dragon and Phoenix Round Tea Cakes, which are called round tea cakes, consisting of eight cakes weighing one jin (approximately 500 grams)." Dragon and Phoenix Round Tea Cakes were used as tribute teas for the imperial court until the Ming Dynasty. In September of the 24th year of the Hongwu reign (1389), the emperor, considering the heavy burden on the people, abolished the production of Dragon Round Tea Cakes, only allowing the picking of tea buds for tribute. Currently, the main tea cake production techniques still used are for Pu'er tea and Liubao tea, which better bring out the characteristic flavor of Pu'er tea that improves with age.

[0003] Patent CN222382574U discloses a tea-discharging device for tea cake production equipment, including a mounting plate. A support frame is bolted to the top left side of the mounting plate, and a storage box is bolted to the top of the support frame. A spiral rod is rotatably connected to the lower left side of the inner cavity of the storage box via a bearing. A servo motor is bolted to the lower left side of the storage box, and the left side of the spiral rod passes through the storage box and is bolted to the output end of the servo motor. A folding frame is bolted to the top right side of the mounting plate, and a hydraulic cylinder is bolted to the top of the folding frame. Through components such as a first annular mounting groove, a sphere, a second annular mounting groove, a rotating disk, a fixed cylinder, and a shaping sleeve, the processed tea cakes can be effectively removed from the device for continuous discharge, achieving automated tea discharging, pressing, and unloading operations.

[0004] The tea leaves are discharged from the storage box by a rotating screw, but the weight of the tea leaves discharged in this way is difficult to control. Utility Model Content

[0005] The purpose of this invention is to provide a Pu-erh tea pressing device that allows for more precise control of the weight of the tea cake.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a Pu-erh tea cake pressing device, comprising:

[0007] Weighing support

[0008] Weighing device, the weighing device comprising:

[0009] A weighing hopper, wherein a weighing cavity is provided inside the weighing hopper, the weighing cavity passing through both ends of the weighing hopper, and the weighing cavity including a weighing inlet and a weighing outlet;

[0010] A weight sensor, with its lower side fixedly connected to the weighing bracket at one end and its upper side fixedly connected to the weighing hopper at the other end.

[0011] An opening and closing device, the opening and closing device being used to open or close the weighing outlet;

[0012] The pressing structure presses the tea leaves output from the weighing outlet into cakes.

[0013] Furthermore, the pressing structure includes:

[0014] Pressing stand;

[0015] A pressing turntable is rotatably connected to the pressing support, and the outer wall of the pressing turntable is provided with a plurality of pressing conveying grooves;

[0016] The outer ring of the pressing plate is fixedly connected to the pressing plate support. The outer ring of the pressing plate is disposed on the outside of the pressing plate turntable. A pressing plate channel is formed between the outer ring of the pressing plate and the pressing plate turntable. The pressing plate is installed between the pressing plate conveying groove and the inner wall of the outer ring of the pressing plate.

[0017] A pressing cylinder is fixed on the pressing support by a cylinder bracket. The pressing cylinder is located above the pressing turntable, and a pressing plate is fixed on the cylinder rod.

[0018] The pressing plate rotating device is used to drive the pressing plate turntable to rotate, and move the pressing plate one by one to the weighing outlet and below the pressing plate.

[0019] Furthermore, it also includes a tray conveyor belt device, which includes a tray inlet and a tray outlet, and the pressing channel includes a channel inlet and a channel outlet, with the tray outlet located near the channel inlet.

[0020] Furthermore, it also includes a reel-out conveyor belt device, which includes a reel-out inlet and a reel-out outlet, with the reel-out inlet located near the channel outlet.

[0021] Furthermore, the opening and closing device includes:

[0022] The first opening and closing plate has first opening and closing sides at both ends, and the first opening and closing sides are rotatably connected to the outer wall of the weighing hopper.

[0023] The second opening and closing plate and the first opening and closing plate are located on both sides of the weighing outlet. The two ends of the second opening and closing plate are provided with second opening and closing sides, which are rotatably connected to the outer wall of the weighing hopper.

[0024] A first push rod, one end of which is rotatably connected to the first opening / closing side;

[0025] The second push rod has one end fixedly connected to the second opening and closing plate, and the other end rotatably connected to a push column. The end of the first push rod away from the first opening and closing side is rotatably connected to the push column.

[0026] An opening and closing cylinder is fixed on the weighing bracket. A push block is fixed on the cylinder rod. The push block is provided with a push arc groove. The outer wall of the push column is in contact with the inner wall of the push arc groove.

[0027] Furthermore, it also includes a feeding device, which corresponds one-to-one with the weighing device, and the feeding device includes:

[0028] A vibrator, which is fixed to the weighing bracket;

[0029] A vibrating disc is fixed on the vibrator. The vibrating disc has a vibration groove and a vibration outlet, which is located above the weighing inlet.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] (1) When pressing is required, the opening and closing device closes the weighing outlet and gradually transports the tea into the weighing chamber. The weight sensor can detect the weight of the Pu'er tea in the weighing chamber. When the required weight is reached, the tea is stopped from being transported into the weighing chamber. Then the opening and closing device opens the weighing outlet, and the tea in the weighing chamber enters the pressing structure to be pressed into a cake. The required weight of the tea cake can be obtained, and the weight is relatively easy to control.

[0032] (2) The pressing and rotating device drives the pressing plate to rotate. First, the pressing plate is rotated to the bottom of the weighing outlet. Then, the pressing plate after receiving tea leaves is moved to the bottom of the pressing plate. Then, the pressing cylinder drives the pressing plate to press into the pressing plate, thereby pressing the tea leaves on the pressing plate into tea cakes, which is very convenient.

[0033] (3) The pressing plate output from the inlet and outlet will enter the pressing plate conveying groove, and then the pressing plate turntable will rotate to transport the pressing plate from the channel inlet to the pressing plate channel, thus facilitating the transport of the pressing plate. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the Pu'er tea pressing device of this utility model;

[0035] Figure 2 for Figure 1 A magnified view of a section at point I;

[0036] Figure 3 for Figure 2A magnified view of a section at point III;

[0037] Figure 4 for Figure 1 Enlarged view of a section at point II;

[0038] Figure 5 A schematic diagram of a portion of the opening and closing device;

[0039] Figure 6 This is a schematic diagram of another part of the opening and closing device.

[0040] In the diagram: 1. Weighing support; 2. Weighing hopper; 3. Weighing chamber; 4. Weighing inlet; 5. Weighing outlet; 6. Weight sensor; 7. Pressing plate support; 8. Pressing plate turntable; 9. Pressing plate conveying groove; 10. Pressing plate outer ring; 11. Pressing plate channel; 12. Pressing plate cylinder; 13. Cylinder support; 14. Pressing plate; 15. Feeding conveyor belt device; 16. Feeding plate inlet; 17. Feeding plate outlet; 18. Channel inlet; 19. Channel outlet; 20. Discharge conveyor belt device; 21. Discharge inlet; 22. Discharge outlet; 23. First opening and closing plate; 24. First opening and closing side; 25. Second... 26. Opening / closing plate; 27. Second opening / closing side; 28. First push rod; 29. ​​Second push rod; 30. Push column; 31. Opening / closing cylinder; 32. Push block; 33. Push arc groove; 34. Vibrator; 35. Vibration disc; 36. Vibration groove; 37. Vibration outlet; 38. Feeding cross frame; 39. Feeding vertical frame; 40. Feeding baffle plate; 41. Feeding cylinder; 42. Collection hopper; 43. Collection trough; 44. Feeding inclined plate; 45. Collection outlet; 46. Feeding hopper; 47. Feeding inlet; 48. Feeding outlet; 49. Lifting mechanism; 50. Pressing plate. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0042] Please see Figures 1-6 This utility model provides a technical solution for a Pu'er tea pressing device.

[0043] A Pu-erh tea cake pressing device, comprising:

[0044] Weighing support 1,

[0045] Weighing device, the weighing device includes:

[0046] Weighing hopper 2, weighing hopper 2 is provided with weighing cavity 3, weighing cavity 3 passes through both ends of weighing hopper 2, weighing cavity 3 includes weighing inlet 4 and weighing outlet 5;

[0047] The weight sensor 6 has its lower side fixedly connected to the weighing bracket 1 at one end and its upper side fixedly connected to the weighing hopper 2 at the other end.

[0048] An opening and closing device is used to open or close the weighing outlet 5.

[0049] The pressing structure presses the tea leaves output from outlet 5 into cakes.

[0050] When pressing is required, the opening and closing device closes the weighing outlet 5, gradually feeding the tea leaves into the weighing chamber 3. The weight sensor 6 can detect the weight of the Pu'er tea leaves in the weighing chamber 3. When the required weight is reached, the feeding of tea leaves into the weighing chamber 3 is stopped, and then the opening and closing device opens the weighing outlet 5. The tea leaves in the weighing chamber 3 enter the pressing structure for pressing, which can obtain tea cakes of the required weight. The weight is relatively easy to control.

[0051] There are two weight sensors 6, located on both sides of the weighing hopper 2, which can better support the weighing hopper 2.

[0052] like Figures 1-4 As shown, the pressing structure includes:

[0053] 7. Pressing stand;

[0054] A pressing turntable 8 is rotatably connected to a pressing bracket 7. Several pressing conveying grooves 9 are provided on the outer wall of the pressing turntable 8.

[0055] The outer ring 10 of the pressing plate is fixedly connected to the pressing plate support 7. The outer ring 10 of the pressing plate is set on the outside of the pressing plate turntable 8. The pressing plate channel 11 is formed between the outer ring 10 of the pressing plate and the pressing plate turntable 8. The pressing plate 50 is installed between the pressing plate conveying groove 9 and the inner wall of the outer ring 10 of the pressing plate.

[0056] The pressing cylinder 12 is fixed on the pressing bracket 7 by the cylinder bracket 13. The pressing cylinder 12 is located above the pressing turntable 8. The pressing plate 14 is fixed on the air rod of the pressing cylinder 12.

[0057] The pressing plate rotating device is used to drive the pressing plate turntable 8 to rotate, and move the pressing plate 50 one by one to the weighing outlet 5 and below the pressing plate 14.

[0058] The pressing plate 50 is placed between the pressing conveying groove 9 and the inner wall of the pressing outer ring 10. Then, the pressing rotating device drives the pressing turntable 8 to rotate. First, the pressing plate 50 is rotated to the bottom of the weighing outlet 5 so that the weighed tea can be received. Then, the pressing plate 50 after receiving the tea is moved to the bottom of the pressing plate 14. Then, the pressing cylinder 12 drives the pressing plate 14 to press into the pressing plate 50, thereby pressing the tea in the pressing plate 50 into a tea cake, which is very convenient.

[0059] like Figure 1 and Figure 4 As shown, the Pu'er tea pressing device also includes a tray conveyor belt device 15, which includes a tray inlet 16 and a tray outlet 17. The pressing channel 11 includes a channel inlet 18 and a channel outlet 19, with the tray outlet 17 located near the channel inlet 18.

[0060] The pressing tray 50 can be placed in the tray inlet conveyor belt device 15. The conveyor belt of the tray inlet conveyor belt device 15 transports the pressing tray 50 from the tray inlet 16 to the tray outlet 17. Since the tray outlet 17 is located near the channel inlet 18, the pressing tray 50 output from the tray outlet 17 will enter the pressing tray conveying groove 9. Then the pressing tray turntable 8 rotates, transporting the pressing tray 50 from the channel inlet 18 into the pressing tray channel 11, thereby facilitating the transport of the pressing tray 50.

[0061] like Figure 1 and Figure 4 As shown, the Pu'er tea pressing device also includes a tray conveyor belt device 20, which includes a tray inlet 21 and a tray outlet 22. The tray inlet 21 is located near the channel outlet 19.

[0062] After the tea cakes are pressed in the pressing pan 50, the pressing turntable 8 rotates, rotating the pressing pan 50 out of the channel outlet 19. At this time, the lower side of the pressing pan 50 will contact the conveyor belt on the discharge conveyor belt device 20, thereby conveying the pressed pan 50 out from the discharge inlet 21.

[0063] Both the infeed conveyor belt device 15 and the outfeed conveyor belt device 20 are existing conveyor belt structures.

[0064] The following is one embodiment of the opening and closing device, such as... Figure 3 , Figure 5 and Figure 6 As shown, the opening and closing device includes:

[0065] The first opening and closing plate 23 has first opening and closing side 24 at both ends, and the first opening and closing side 24 is rotatably connected to the outer wall of the weighing hopper 2.

[0066] The second opening and closing plate 25 and the lower end of the weighing hopper 2 are triangular in shape. The second opening and closing plate 25 and the first opening and closing plate 23 are located on both sides of the weighing outlet 5, that is, on both sides of the triangle. The two ends of the second opening and closing plate 25 are provided with second opening and closing side edges 26, which are rotatably connected to the outer wall of the weighing hopper 2. Figure 6 In the middle, the first opening and closing plate 23 and the second opening and closing plate 25 are in the open state;

[0067] The first push rod 27, one end of which is rotatably connected to the first opening / closing side 24;

[0068] The second push rod 28 has one end fixedly connected to the second opening and closing plate 25, and the other end rotatably connected to the push column 29. The end of the first push rod 27 away from the first opening and closing side 24 is rotatably connected to the push column 29.

[0069] An opening and closing cylinder 30 is fixed on the weighing bracket 1. A push block 31 is fixed on the air rod of the opening and closing cylinder 30. The push block 31 is provided with a push arc groove 32. The outer wall of the push column 29 fits against the inner wall of the push arc groove 32, and the push column 29 can move within the push arc groove 32.

[0070] like Figure 5 and Figure 6 In the weighing process, the opening / closing cylinder 30 is in the retracted state, while the first opening / closing plate 23 and the second opening / closing plate 25 are in the open state, allowing the tea leaves in the weighing hopper 2 to be discharged from the weighing outlet 5. When it is necessary to close the weighing outlet 5, the air rod of the opening / closing cylinder 30 extends, thereby pushing the push rod 29 to move. At this time, both the first push rod 27 and the second push rod 28 rotate, thereby driving the first opening / closing plate 23 and the second opening / closing plate 25 to rotate, closing the weighing outlet 5. Therefore, the opening and closing of the weighing outlet 5 can be achieved by extending and retracting the air rod of the opening / closing cylinder 30.

[0071] The Pu-erh tea pressing device also includes a feeding device, which corresponds one-to-one with the weighing device. The feeding device includes:

[0072] Vibrator 33, vibrator 33 is fixed on weighing bracket 1;

[0073] Vibrating disc 34 is fixed on vibrator 33. Vibrating disc 34 is provided with vibration groove 35. Vibrating groove 35 is provided with vibration outlet 36. Vibrating outlet 36 is located above weighing inlet 4.

[0074] Tea leaves are placed on a vibrating disc 34. The vibrator 33 causes the tea leaves on the vibrating disc 34 to vibrate. The vibrating tea leaves will gradually be output from the vibration outlet 36 and then enter the weighing inlet 4. Using vibration makes it convenient and easier to control the output of tea leaves.

[0075] like Figure 3 As shown, the feeding device also includes:

[0076] Feeding crossbar 37 is fixed on weighing bracket 1;

[0077] Feeding vertical frame 38 is fixed on feeding horizontal frame 37;

[0078] The feed baffle 39 is rotatably connected to the lower end of the feed vertical frame 38. The feed baffle 39 opens or closes the vibration outlet 36.

[0079] The feeding cylinder 40 has its housing rotatably connected to the upper end of the feeding vertical frame 38, and the end of the air rod of the feeding cylinder 40 is rotatably connected to the feeding baffle plate 39.

[0080] When the air rod of the feed cylinder 40 extends, it can drive the feed baffle plate 39 to close the vibration outlet 36 (e.g. Figure 3 (State), thus preventing the vibrating outlet 36 from continuing to discharge material. When it is necessary to continue discharging material, the air rod of the feeding cylinder 40 retracts, driving the feeding baffle plate 39 to rotate, thereby discharging the material from the vibrating outlet 36.

[0081] The Pu'er tea pressing device also includes a collection hopper 41, which is fixed on the pressing support 7. The collection hopper 41 is provided with a collection trough 42, which includes a collection inlet and a collection outlet 44. There are two weighing devices, which are arranged in parallel. The collection inlet is located below the weighing outlets 5 of the two weighing devices, and the collection outlet 44 is located above the pressing tray 50 that needs to receive tea leaves.

[0082] By setting up two weighing devices, the pressing efficiency can be increased. The collecting hopper 41 can receive the tea leaves discharged from the weighing devices and then transport the tea leaves into the pressing pan 50.

[0083] The Pu'er tea pressing device also includes a feeding hopper 45, which is fixed on the weighing bracket 1. The feeding hopper 45 has a feeding trough 46, which includes a feeding inlet 47 and a feeding outlet 48. The feeding outlet 48 is located above the vibrating disc 34. It also includes a lifting mechanism 49, which lifts the tea leaves into the feeding trough 46.

[0084] The lifting mechanism 49 can lift the tea leaves to the feed trough 46, and then from the feed outlet 48 of the feed trough 46 into the vibrating disc 34. The lifting mechanism 49 is existing technology.

[0085] Two feed ramps 43 are fixed inside the feed trough 46. The two feed ramps 43 are arranged in a triangular shape and protrude upwards, which can guide the input tea leaves into the two vibrating discs 34 respectively.

[0086] The pressing and rotating device is set as a rotating motor, which drives the pressing turntable 8 to rotate.

[0087] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pu'er tea cake pressing device, characterized in that, include: Weighing support Weighing device, the weighing device comprising: A weighing hopper, wherein a weighing cavity is provided inside the weighing hopper, the weighing cavity passing through both ends of the weighing hopper, and the weighing cavity including a weighing inlet and a weighing outlet; A weight sensor, with its lower side fixedly connected to the weighing bracket at one end and its upper side fixedly connected to the weighing hopper at the other end. An opening and closing device, the opening and closing device being used to open or close the weighing outlet; The pressing structure presses the tea leaves output from the weighing outlet into cakes.

2. The device according to claim 1, wherein, The pressing structure includes: Pressing stand; A pressing turntable is rotatably connected to the pressing support, and the outer wall of the pressing turntable is provided with a plurality of pressing conveying grooves; The outer ring of the pressing plate is fixedly connected to the pressing plate support. The outer ring of the pressing plate is disposed on the outside of the pressing plate turntable. A pressing plate channel is formed between the outer ring of the pressing plate and the pressing plate turntable. The pressing plate is installed between the pressing plate conveying groove and the inner wall of the outer ring of the pressing plate. A pressing cylinder is fixed on the pressing support by a cylinder bracket. The pressing cylinder is located above the pressing turntable, and a pressing plate is fixed on the cylinder rod. The pressing plate rotating device is used to drive the pressing plate turntable to rotate, and move the pressing plate one by one to the weighing outlet and below the pressing plate.

3. The device according to claim 2, wherein, It also includes a tray conveyor belt device, which includes a tray inlet and a tray outlet, and the pressing channel includes a channel inlet and a channel outlet, with the tray outlet located near the channel inlet.

4. The device according to claim 3, wherein, It also includes a reel-out conveyor belt device, which includes a reel-out inlet and a reel-out outlet, with the reel-out inlet located near the channel outlet.

5. The device according to claim 1, wherein, The opening and closing device includes: The first opening and closing plate has first opening and closing sides at both ends, and the first opening and closing sides are rotatably connected to the outer wall of the weighing hopper. The second opening and closing plate and the first opening and closing plate are located on both sides of the weighing outlet. The two ends of the second opening and closing plate are provided with second opening and closing sides, which are rotatably connected to the outer wall of the weighing hopper. A first push rod, one end of which is rotatably connected to the first opening / closing side; The second push rod has one end fixedly connected to the second opening and closing plate, and the other end rotatably connected to a push column. The end of the first push rod away from the first opening and closing side is rotatably connected to the push column. An opening and closing cylinder is fixed on the weighing bracket. A push block is fixed on the cylinder rod. The push block is provided with a push arc groove. The outer wall of the push column is in contact with the inner wall of the push arc groove.

6. The device according to claim 1, wherein, It also includes a feeding device, which corresponds one-to-one with the weighing device. The feeding device includes: A vibrator, which is fixed to the weighing bracket; A vibrating disc is fixed on the vibrator. The vibrating disc has a vibration groove and a vibration outlet, which is located above the weighing inlet.

Citation Information

Patent Citations

  • Tea discharging device of tea cake production equipment

    CN222382574U