Automatic extraction equipment and extraction process of tea polyphenols from Camellia chrysantha

Abstract

The invention belongs to the technical field of tea polyphenol extraction, and specifically relates to an automatic tea polyphenol extraction device and extraction process of camellia chrysantha. The automatic tea polyphenol extraction device of camellia chrysantha comprises a frame, a pollen screening device, a camellia chrysantha loading device, a tea bag conveying device and a tea polyphenol extraction device. The pollen screening device is used to screen pollen in camellia chrysantha. The camellia chrysantha loading device is used to quantitatively load camellia chrysantha after pollen screening into a tea bag. The tea bag conveying device is used to deliver the tea bag filled with camellia chrysantha to the tea polyphenol extraction device. The tea polyphenol extraction device is used to extract tea polyphenol in camellia chrysantha in the tea bag, and comprises a reaction tank, a tea bag clamping mechanism and a tea bag rubbing mechanism for rubbing the tea bag to promote the tea polyphenol in camellia chrysantha to be fully analyzed. The automatic tea polyphenol extraction device of camellia chrysantha of the invention can realize automatic extraction of tea polyphenol in camellia chrysantha, and has a higher degree of automation, thereby greatly saving labor costs.

Description

Technical Field

[0001] The invention relates to the technical field of tea polyphenol extraction, and in particular to automatic extraction equipment and an extraction process for tea polyphenol from Camellia chrysantha. Background Art

[0002] At present, the method of extracting tea polyphenols from Camellia chrysantha mainly uses traditional green tea tea polyphenols extraction equipment and processes. First, a mixed extract containing caffeine and tea polyphenols is obtained by soaking or steaming, and then the mixed extract is extracted by different methods to obtain tea polyphenols.

[0003] Due to the different properties of Camellia chrysantha and green tea, the extraction process of tea polyphenols from green tea will cause a large loss of tea polyphenols in Camellia chrysantha when used in the extraction process. The actual output is quite different from the theoretical value. There are two main factors. The first is the immersion temperature. The immersion temperature of Camellia chrysantha is relatively low. Although conventional immersion equipment can control the temperature, the required immersion time is relatively long. Long-term immersion will cause some tea polyphenols to oxidize, affecting the yield. The second is that the pollen in Camellia chrysantha will release some heat-sensitive components during the immersion process, which greatly affects the extraction of tea polyphenols. Based on the above two points, the traditional green tea tea polyphenol extraction process cannot meet the production needs of Camellia chrysantha.

[0004] To this end, the invention patent with authorization announcement number CN118356685B announced "a camellia chrysantha tea polyphenol extraction device and extraction process thereof". The camellia chrysantha tea polyphenol extraction device includes a main bracket, an leaching feeding table, a pollen screening component, a pollen receiving box, and a low-temperature leaching component. One side of the upper part of the low-temperature leaching component is connected to the leaching raw liquid input source, and the other side of the lower part of the low-temperature leaching component is connected to the leaching liquid collecting device. Most of the pollen in the camellia chrysantha is screened out by the pollen screening component in the extraction device, which is beneficial to the extraction of camellia chrysantha tea polyphenols, and the screened pollen is collected for the production of by-products, which not only reduces the loss of tea polyphenols, but also brings additional benefits; the tea bag kneading mechanism in the low-temperature leaching component cooperates with the twisting drive mechanism and the kneading drive mechanism to knead the raw materials, which greatly improves the leaching efficiency.

[0005] However, after the above-mentioned Camellia chrysantha tea polyphenol extraction device completes the extraction of tea polyphenols from the Camellia chrysantha in the tea bag, it is necessary to manually open the extraction kettle in the low-temperature extraction component to take out the tea bag after the tea polyphenol extraction is completed, which is particularly inconvenient to operate; in addition, the above-mentioned Camellia chrysantha tea polyphenol extraction device is not suitable for continuous and automatic extraction of tea polyphenols from Camellia chrysantha. Summary of the invention

[0006] In order to overcome the deficiencies of the prior art, the present invention provides an automatic extraction device for tea polyphenols from camellia chrysantha. The automatic extraction device for tea polyphenols from camellia chrysantha can realize automatic extraction of tea polyphenols from camellia chrysantha with a higher degree of automation, thereby greatly saving labor costs.

[0007] The second object of the present invention is to provide a camellia chrysantha tea polyphenol automatic extraction process for the camellia chrysantha tea polyphenol automatic extraction device.

[0008] The technical solution of the present invention to solve the above technical problems is:

[0009] An automatic tea polyphenol extraction device for golden camellia comprises a frame, a pollen screening device arranged on the frame, a golden camellia loading device, a tea bag conveying device and a tea polyphenol extraction device, wherein:

[0010] The pollen screening device is used to screen out pollen in Camellia chrysantha;

[0011] The golden camellia loading device is used to quantitatively load the golden camellia after the pollen is screened out into the tea bag;

[0012] The tea bag conveying device is used to convey the tea bag containing golden camellia to the tea polyphenols extraction device;

[0013] The tea polyphenol extraction device is used to extract tea polyphenols from golden camellia tea in a tea bag, comprising a reaction tank, a tea bag clamping mechanism arranged in the reaction tank, and a tea bag kneading mechanism for kneading the tea bag in the tea bag clamping mechanism to promote the full extraction of tea polyphenols from the golden camellia tea, wherein:

[0014] The reaction tank is provided with an inlet and outlet, a liquid inlet and a liquid outlet, wherein the liquid inlet is connected to an extracting liquid conveying device, and the extracting liquid conveying device is used to convey the extracting liquid into the reaction tank; the liquid outlet is connected to a dissolving liquid conveying device, and the dissolving liquid conveying device is used to convey the dissolving liquid containing tea polyphenols to a subsequent processing step; the inlet and outlet are used for the tea packaging clamping mechanism to take out the tea bag after the tea polyphenols extraction from the reaction tank, and at the same time, for the tea packaging clamping mechanism to transfer the tea bag to be extracted with tea polyphenols transported by the tea bag transporting device into the reaction tank.

[0015] An automatic extraction process of tea polyphenols from Camellia chrysantha, comprising the following steps:

[0016] S1: Spreading and drying the picked Camellia chrysantha raw materials to obtain raw dried flowers;

[0017] S2: placing the obtained raw dried flowers into a pollen screening device, wherein the pollen screening device screens out pollen from the raw dried flowers;

[0018] S3: The raw dried flowers after pollen is screened out are quantitatively loaded into tea bags by the golden camellia loading device; the tea bags are transported to the handover position by the tea bag transporting device, and the tea bag clamping mechanism sends the tea bags after tea polyphenols extraction to the tea bag collecting device, and then the tea bags transported by the tea bag transporting device are clamped at the handover position and transferred to the reaction tank;

[0019] S4: The extracting liquid conveying device introduces the extracting liquid into the reaction tank, and the raw dried flowers are soaked by the extracting liquid. During this process, the tea bag kneading mechanism twists and rubs the tea bag, wherein the temperature of the soaking liquid is 60°C-85°C, and the soaking time is 1-2h to obtain a dissolved liquid;

[0020] S5: After the leaching is completed, the obtained solution is subjected to post-treatment, wherein the post-treatment includes washing, acidification, extraction, desolventization and drying, so as to obtain the finished tea polyphenols.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The automatic extraction equipment for tea polyphenols from camellia chrysantha of the present invention can screen out pollen from camellia chrysantha, automatically put a certain amount of the camellia chrysantha after pollen screening into tea bags, and send the tea bags to a reaction tank for tea polyphenol extraction. After the extraction is completed, the tea bags from which tea polyphenols have been extracted can be automatically taken out of the reaction tank. The entire tea polyphenol extraction process does not require the participation of staff, and has a higher degree of automation, which can greatly improve the extraction efficiency of tea polyphenols from camellia chrysantha and reduce the extraction cost.

[0023] 2. The automatic extraction device for tea polyphenols from Camellia chrysantha of the present invention realizes the automatic extraction of tea polyphenols from Camellia chrysantha and has a good market application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the automatic extraction device of tea polyphenols from Camellia chrysantha of the present invention.

[0025] Figure 2 It is a front view of the automatic extraction device of tea polyphenols from Camellia chrysantha of the present invention.

[0026] Figure 3 It is the front view of the pollen screening device and the automatic loading mechanism of Camellia chrysantha.

[0027] Figure 4 It is a cross-sectional view of the pollen screening device and the automatic loading mechanism of Camellia chrysantha.

[0028] Figure 5 It is a three-dimensional diagram of the tea bag feeding mechanism.

[0029] Figure 6 This is the front view of the tea bag feeding mechanism.

[0030] Figure 7 A schematic diagram of the structure of a tea bag.

[0031] Figure 8 It is a three-dimensional diagram of a tea bag transporting device.

[0032] Fig. 9 It is a three-dimensional diagram of the tea bag carrying device (the first carrying claw and the second carrying claw are hidden).

[0033] Fig.10 It is a schematic diagram of the structure of the transport drive component.

[0034] Fig.11 A three-dimensional diagram of the transport rack.

[0035] Fig.12 The front view of the guide slot.

[0036] Fig.13 This is a three-dimensional diagram of a tea polyphenols extraction device.

[0037] Fig.14 and Fig.15 These are schematic diagrams of the structure from two different perspectives behind the hidden reaction tank in the tea polyphenols extraction device.

[0038] Fig.16 This is a three-dimensional image of the tea polyphenols extraction device with the reaction tank and tea bags hidden.

[0039] Fig.17 It is a stereoscopic diagram of a tea bag handover mechanism, a tea bag unloading mechanism, a tea bag clamping mechanism, a rotary drive mechanism and a vertical drive mechanism.

[0040] Fig.18 It is a structural schematic diagram of the tea bag clamping mechanism.

[0041] Fig.19 It is a structural schematic diagram of the tea bag handover mechanism, the tea bag unloading mechanism, and the tea bag clamping mechanism.

[0042] Fig. 20 It is a three-dimensional diagram of the tea bag kneading mechanism.

[0043] Fig.21 It is the front view of the tea bag kneading mechanism.

[0044] Fig. 22 It is a structural schematic diagram of the kneading drive mechanism.

[0045] In the figure: 1-pollen primary screening mechanism; 101-first roller; 102-first feed hopper; 103-first air inlet; 104-first pollen collecting port; 105-first discharge port; 2-pollen secondary screening mechanism; 201-second roller; 202-second feed hopper; 203-second pollen collecting port; 204-stirring motor; 205-first rotating shaft; 206-first spiral blade; 3-tea bag automatic loading mechanism; 301-loading tank; 302-loading motor; 303-second rotating shaft; 304-second spiral blade; 4-tea bag loading mechanism; 401-tea bag storage rack; 402- Lifting support plate; 403-lifting drive mechanism; 404-lifting frame; 405-second supporting spring; 406-first supporting spring; 5-tea bag carrying device; 501-first carrying claw; 502-second carrying claw; 503-carrying frame; 504-linear driving mechanism; 505-pressing plate; 506-guide shaft; 507-compression spring; 508-limiting block; 509-moving seat; 510-guide groove; 5101-first inclined section; 5102-first horizontal section; 5103-second inclined section; 5104-second horizontal section; 5105-first transition section; 5106-second transition section; 511-guide column; 512-reset spring; 513-sliding seat; 6-frame; 7-tea bag collection basket; 8-tea polyphenols extraction device; 9-tea bag; 901-first annular groove; 902-second annular groove; 903-net bag; 10-tea bag clamping mechanism; 1001-rotating motor; 1002-rotating frame; 1003-driving hole; 1004-screw rod; 1005-limiting ring; 1006-optical axis; 1007-driving rod; 1008-driving seat; 1009-lifting spring; 11-tea bag handover mechanism; 111-linear drive; 112-driving block; 113-driving column; 114-sliding sleeve; 115-guide wheel; 116-support frame; 117-wedge block; 12-tea bag clamping mechanism; 121-clamping seat; 122-first clamping jaw; 123-second clamping jaw; 124-first torsion spring; 125-driving member; 13-tea bag kneading mechanism; 131-kneading movable disk; 132-first static disk body; 133-second static disk body; 134-driving plate; 135-lifting seat; 136-pressing rod; 137-second torsion spring; 138-tension spring; 139-driven wheel; 1310-synchronous belt; 1311-kneading motor; 14-reaction tank; 15-gate. DETAILED DESCRIPTION

[0046] The present invention is further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0047] Example 1

[0048] See also Figure 1-Figure 22The automatic tea polyphenol extraction device of Camellia chrysantha of the present invention comprises a frame 6, a pollen screening device arranged on the frame 6, a Camellia chrysantha loading device, a tea bag conveying device 5 and a tea polyphenol extraction device 8, wherein:

[0049] The pollen screening device is used to screen out pollen in Camellia chrysantha;

[0050] The golden camellia loading device is used to quantitatively load the golden camellia after the pollen is screened out into the tea bag 9;

[0051] The tea bag transporting device 5 is used to transport the tea bag 9 containing golden camellia to the tea polyphenols extraction device 8;

[0052] The tea polyphenols extraction device 8 is used to extract tea polyphenols from Camellia chrysantha in a tea bag 9, and comprises a reaction tank 14, a tea package clamping mechanism 10 arranged in the reaction tank 14, and a tea bag kneading mechanism 13 used to rub the tea bag 9 in the tea package clamping mechanism 10 to promote the full extraction of tea polyphenols from the Camellia chrysantha, wherein the reaction tank 14 is provided with an inlet and outlet, a liquid inlet and a liquid outlet, wherein the liquid inlet is connected to an extracting liquid conveying device, and the extracting liquid conveying device is used to convey the extracting liquid into the reaction tank 14; the liquid outlet is connected to a dissolving liquid conveying device, and the dissolving liquid conveying device is used to convey the dissolving liquid containing tea polyphenols to a subsequent processing step; the inlet and outlet are used for the tea package clamping mechanism 10 to take out the tea bag 9 from which tea polyphenols extraction has been completed from the reaction tank 14, and at the same time, the tea package clamping mechanism 10 transfers the tea bag 9 to be extracted with tea polyphenols transported by the tea bag transporting device 5 into the reaction tank 14.

[0053] In this embodiment, the extracting liquid conveying device and the dissolving liquid conveying device both adopt a conveying pump to convey the extracting liquid to the reaction tank 14 through the conveying pump and the corresponding conveying pipeline, and convey the dissolving liquid to the subsequent processing step after the tea polyphenols extraction is completed.

[0054] As a further preferred embodiment, a temperature control system may be provided in the reaction tank 14, wherein the temperature control system includes a temperature sensor and a temperature controller. The temperature in the reaction tank 14 is detected by the temperature sensor, and the temperature data is then fed back to the control system. The control system controls the temperature controller to control the temperature in the reaction tank 14 (e.g., heating and cooling), so that the temperature in the reaction tank 14 is maintained within a temperature range most suitable for the extraction of tea polyphenols in Camellia chrysantha.

[0055] See also Figure 1-Figure 22 The pollen screening device comprises a primary pollen screening mechanism 1 and a secondary pollen screening mechanism 2 arranged on a frame 6, wherein:

[0056] The pollen primary screening mechanism 1 includes a first roller 101 arranged obliquely and a first stirring mechanism for stirring the golden camellia in the first roller 101, wherein a first feed hopper 102 is arranged on the first roller 101, and the first feed hopper 102 is arranged at the upper end of the first roller 101; a first discharge port 105 is arranged at the bottom of the first roller 101; the first stirring mechanism includes a first air inlet 103 arranged on the lower side of the first roller 101 and a first pollen collecting port 104 arranged on the upper side of the first roller 101; the first air inlet 103 is connected to the air supply device; and the first pollen collecting port 104 is connected to the pollen collecting device through a negative pressure device;

[0057] The pollen secondary screening mechanism 2 includes a horizontally arranged second roller 201 and a second stirring mechanism for stirring the golden camellia in the second roller 201, wherein a second feed hopper 202 is arranged on the left side of the second roller 201, and the second feed hopper 202 is arranged at the lower end of the first discharge port 105 of the first roller 101; a second discharge port is arranged on the right side of the second roller 201; the second stirring mechanism includes a first rotating shaft 205, a first spiral blade 206 arranged on the first rotating shaft 205, and a stirring motor 204 for driving the first spiral blade 206 to rotate, wherein the first rotating shaft 205 extends along the axial direction of the second roller 201; the stirring motor 204 is connected to the first rotating shaft 205; a second pollen collecting port 203 is arranged on the upper side of the second roller 201; the second pollen collecting port 203 is connected to the pollen collecting device through a negative pressure device.

[0058] Through the above arrangement, the raw material of Camellia chrysantha is spread out and dried until there is no obvious moisture on the surface, thereby obtaining raw dried flowers; then the raw dried flowers are sent to the first feed hopper 102, and then air is blown into the first air inlet 103 through an air supply device (such as an air pump), so as to stir the raw dried flowers entering the first drum 101, so that pollen in the raw dried flowers falls off, and an air pressure difference is formed at the first pollen collecting port 104 through the negative pressure device, so that the fallen pollen is discharged from the first pollen collecting port 104 and transported to the pollen collecting device through the collecting pipe;

[0059] In the above process, a feed baffle can be set at the first drum 101 and the first feed hopper 102, and a discharge baffle can be set at the first discharge port 105, so that after the raw dried flowers are fed into the first drum 101, the feed baffle and the discharge baffle respectively block the feed port and the first discharge port 105 of the first drum 101; then the air supply device is started to stir the raw dried flowers in the first drum 101 by airflow; this setting method can prevent pollen from being discharged from the first feed hopper 102 or the first discharge port 105, thereby ensuring that the shed pollen can only be discharged from the first pollen collecting port 104; in order to improve efficiency, stirring blades can also be set in the first drum 101, and the shedding of pollen can be accelerated by increasing mechanical stirring (i.e., driving the stirring blades to rotate).

[0060] After the raw dried flowers are screened by the pollen primary screening mechanism 1, they fall from the first discharge port 105 into the second feed hopper 202 of the second drum 201, and thus enter the second drum 201; the stirring motor 204 drives the first rotating shaft 205 to rotate, thereby driving the first spiral blade 206 to rotate, thereby stirring the raw dried flowers in the second drum 201 while also driving the raw dried flowers to move forward; since the second drum 201 is provided with a second pollen collecting port 203 at the upper end, driven by the negative pressure device, the pollen stirred by the first spiral blade 206 in the second drum 201 passes through the second pollen collecting port 203 and is sent to the pollen collecting device through the corresponding collecting pipe.

[0061] By setting up a two-stage pollen screening mechanism, the pollen in the golden camellia can be removed to a great extent, thereby avoiding the adverse effect of the pollen in the golden camellia on the extraction of tea polyphenols. In addition, a partition net is set at the first pollen collection port 104 and the second pollen collection port 203 to prevent the raw dried flowers from being discharged from the first pollen collection port 104 and the second pollen collection port 203.

[0062] See also Figure 1-Figure 22 The golden camellia loading device comprises a tea bag loading mechanism 4 and a tea bag automatic loading mechanism 3 for quantitatively loading the golden camellia after secondary pollen screening into a tea bag 9, wherein:

[0063] The tea bag feeding mechanism 4 includes a tea bag storage rack 401 and a lifting mechanism arranged in the tea bag storage rack 401 for driving the tea bags 9 in the tea bag storage rack 401 to rise and fall, wherein a lifting support plate 402 is arranged in the tea bag storage rack 401, and multiple groups of tea bags 9 are vertically stacked and placed on the lifting support plate 402 in the tea bag storage rack 401; the lifting mechanism includes a lifting frame 404 and a lifting drive mechanism 403 for driving the lifting seat 135 to rise and fall, wherein the lifting frame 404 is connected to the lifting support plate 402; the lifting drive mechanism 403 adopts a driving mode combining a motor and a screw transmission mechanism;

[0064] The automatic tea bag loading mechanism 3 includes a loading tank 301, a second rotating shaft 303 arranged on the loading tank 301, a second spiral blade 304 arranged on the second rotating shaft 303, and a loading motor 302 for driving the second spiral blade 304 to rotate, wherein the loading tank 301 is vertically arranged, and the feeding port of the loading tank 301 is connected to the second discharging port of the second roller 201; the discharging port of the loading tank 301 is located directly above the tea bag storage rack 401; the second rotating shaft 303 is vertically arranged, and the main shaft of the loading motor 302 is connected to the second rotating shaft 303.

[0065] When it is necessary to load golden camellia (i.e., raw dried flowers) into the tea bag 9, the loading motor 302 drives the second rotating shaft 303 to rotate, thereby driving the second spiral blade 304 to rotate, so as to deliver the raw dried flowers into the tea bag 9 located at the top in the tea bag storage rack 401; during this process, in order to monitor the weight of the raw dried flowers in the tea bag 9, a pressure sensor can be set at the bottom of the lifting support plate 402, and the weight of the raw dried flowers entering the top tea bag 9 can be monitored in real time by the pressure sensor. When the predetermined weight is reached, the loading motor 302 stops working; then, the tea bag transporting device 5 moves the top tea bag 9 away and transfers it to the tea bag clamping mechanism 10; then, the lifting and lowering device 500 moves the tea bag 9 to the top of the tea bag storage rack 401. The driving mechanism 403 drives the lifting frame 404 and the lifting support plate 402 arranged on the lifting frame 404 to move upward, so that the second tea bag 9 at the top moves to the height position of the original first tea bag 9 again; in addition to this function, the lifting driving mechanism 403 can also assist the tea bag conveying device 5 to move the tea bag 9 at the top of the tea bag storage rack 401, which has been filled with golden camellia, away from the tea bag storage rack 401. For example, after the tea bag conveying mechanism clamps the tea bag 9, the lifting driving mechanism 403 drives the lifting support plate 402 to move downward, so that the second tea bag 9 is separated from the top tea bag 9. In this way, when the tea bag conveying device 5 moves the tea bag 9 away, the second tea bag 9 will not be taken away with it.

[0066] In addition, the tea bag storage rack 401 may be provided with an elastic blocking piece at the position of the second tea bag 9 to limit the second tea bag 9 and prevent the second tea bag 9 from being taken out simultaneously when the tea bag transporting device 5 takes out the first tea bag 9 .

[0067] In addition, in order to ensure accuracy, a position sensor can also be set on the tea bag storage rack 401 to monitor the height position of the top tea bag 9, so as to control the lifting drive mechanism 403 so that each tea bag 9 located at the top of the tea bag storage rack 401 is at the same height.

[0068] In this embodiment, a vertical guiding mechanism is arranged between the lifting plate 402 and the tea bag storage rack 401, and a guiding groove is arranged on the lifting plate 402; a vertically extending guiding portion is arranged on the tea bag storage rack 401, and the guiding portion cooperates with the guiding groove; by setting the above-mentioned vertical guiding mechanism, the vertical movement of the lifting plate 402 can be guided.

[0069] See also Figure 1-Figure 22 The tea bag 9 includes a support ring and a mesh bag 903 arranged at the lower end of the support ring, wherein the support ring is provided with a first annular groove 901 and a second annular groove 902, and the first annular groove 901 is located above the second annular groove 902; the mesh bag 903 is made of wear-resistant fiber material, so that the mesh bag 903 is not easily damaged during the rubbing process; wherein, during the transportation of the tea bag 9, the first transportation claw 501 and the second transportation claw 502 in the tea bag transportation mechanism are used to clamp the second annular groove 902; and the first clamping claw 122 and the second clamping claw 123 in the tea bag clamping mechanism 12 are used to clamp the first annular groove 901; this is conducive to the tea bag transportation mechanism and the tea bag clamping mechanism 12 to transfer and hand over the tea bag 9.

[0070] See also Figure 1-Figure 22 The tea bag transport device 5 includes a tea bag transport mechanism for clamping and releasing the tea bag and a tea bag transport transfer mechanism for driving the tea bag transport mechanism to move to a handover position to realize handover of the tea bag to the tea bag clamping mechanism 10, wherein:

[0071] The tea bag transport mechanism includes a first transport claw 501, a second transport claw 502, and a transport driving mechanism for driving the first transport claw 501 and the second transport claw 502 to move toward or in opposite directions;

[0072] The tea bag transport and transfer mechanism comprises a transport frame 503, a moving seat 509 arranged on the transport frame 503, and a linear drive mechanism 504 for driving the moving seat 509 to perform linear motion, wherein the linear drive mechanism 504 adopts a driving mode combining a motor and a screw transmission mechanism;

[0073] In this embodiment, the transport driving mechanism includes a sliding seat 513 and a transport driving assembly arranged on both sides of the sliding seat 513, wherein a slide groove is arranged in the sliding seat 513, the slide groove extends vertically, and sliding parts cooperating with the slide groove are arranged on both sides of the moving seat 509; a return spring 512 is arranged between the bottom of the moving seat 509 and the sliding seat 513, and the elastic force of the return spring 512 causes the sliding seat 513 to move downward;

[0074] Guide grooves 510 are arranged on both sides of the transport frame 503, and the guide grooves 510 include a first inclined section 5101, a first horizontal section 5102, a second inclined section 5103 and a second horizontal section 5104 which are connected in sequence, wherein the groove depths of the first inclined section 5101 and the first horizontal section 5102 are the same, both are L1; the groove depths of the second inclined section 5103 and the second horizontal section 5104 are the same, both are L2; and L1 is greater than L2; a first transition portion 5105 extending obliquely upward is arranged between the first horizontal section 5102 and the second inclined section 5103; a second transition portion 5106 is arranged between the second horizontal section 5104 and the first inclined section 5101, or a step surface is formed between the second horizontal section 5104 and the first inclined section 5101;

[0075] The transport drive assembly includes a pressing plate 505 and a guide column 511 arranged on the inner side of the pressing plate 505 and cooperating with the guide groove 510, wherein the guide column 511 is rotatably connected to the pressing plate 505; the first transport claw 501 and the second transport claw 502 are respectively mounted on the pressing plate 505; the upper and lower ends of the pressing plate 505 are respectively mounted on the sliding seat 513 through a guide structure; the guide structure includes a guide hole arranged on the pressing plate 505 and a guide shaft 506 cooperating with the guide hole; the guide shaft 506 is arranged vertically with the pressing plate 505; one end of the guide shaft 506 is fixed on the sliding seat 513, and the other end passes through the guide hole and is connected to the limit block 508; the outer diameter of the limit block 508 is larger than the inner diameter of the guide hole; a compression spring 507 is arranged between the limit block 508 and the pressing plate 505; the elastic force of the compression spring 507 causes the pressing plate 505 to move toward the direction of the transport frame 503.

[0076] Through the above arrangement, the working principle of the tea bag transporting device 5 of the present invention is:

[0077] When the movable seat 509 is located at the starting position, the guide column 511 on the pressing plate 505 is located at the bottom of the first inclined section 5101, and the first carrying claw 501 and the second carrying claw 502 have completed clamping the top tea bag 9 in the tea bag storage rack 401 at this time; in the process of the linear drive mechanism 504 driving the movable seat 509 to move to the end position, the guide column 511 first moves obliquely upward along the extension direction of the first inclined section 5101, and as the height of the guide column 511 increases, the pressing plate 505 and the sliding seat 513 also gradually overcome the elastic force of the return spring 512 and move upward; the first carrying claw 501 and the second carrying claw 502 also tilt and take out the tea bag 9 from the tea bag storage rack 401 in a clamped state; in this process During the process, multiple groups of first supporting springs 406 can be arranged between the tea bag storage rack 401 and the frame 6; the upper end of each group of first supporting springs 406 is connected to the bottom of the tea bag storage rack 401, and the lower end is connected to the frame 6; in this way, during the process of the first carrying claws 501 and the second carrying claws 502 tilting and taking out the tea bags 9 from the tea bag storage rack 401, under the tilted upward force, the tea bag storage rack 401 can tilt and swing, so that the first carrying claws 501 and the second carrying claws 502 can smoothly take out the tea bags 9 from the tea bag storage rack 401; when the tea bags 9 are taken out, the tilted upward force on the tea bag storage rack 401 disappears, and under the elastic force of the first supporting springs 406, the tea bag storage rack 401 returns to a vertical state. For the swing of the tea bag storage rack 401, a corresponding limiting structure can also be set to limit the tea bag storage rack 401 to swing only in the inclination direction of the first inclination section 5101; after resetting, the limiting structure can also limit the tea bag storage rack 401 to immediately return to the vertical state.

[0078] When the guide column 511 moves to the first horizontal section 5102, since the groove depth of the first horizontal section 5102 is the same as the groove depth of the first inclined section 5101, the first carrying claw 501 and the second carrying claw 502 still maintain a clamped state; when the guide column 511 moves to the first transition portion 5105, since the first transition portion 5105 extends upwardly and obliquely, when the guide column 511 begins to climb up the first transition portion 5105, the first carrying claw 501 and the second carrying claw 502 begin to gradually release the clamped tea bag 9, and at the same time, the tea bag clamping mechanism 10 also begins to clamp the first annular groove 901 in the tea bag 9; when the guide column 511 completely climbs up the first transition portion 5105 and enters the second inclined section 5103, the first carrying claw 501 and the second carrying claw 502 have completely released the tea bag 9; the movable seat 509 The guide post 511 also moves to the end position; at this time, the linear drive mechanism 504 starts to drive the moving seat 509 to move in the opposite direction; under the elastic force of the return spring 512, the sliding seat 513 moves downward, so that the pressure plate 505 also moves downward, and the guide column 511 will also move downward along the extension direction of the second inclined section 5103, which is equivalent to saying that the guide column 511 can no longer return to the first horizontal section 5102, but enters the second horizontal section 5104 along the second inclined section 5103 under the vertical downward force, and returns to the first inclined section 5101 along the second horizontal section 5104. Since the groove depths of the second inclined section 5103 and the second horizontal section 5104 are the same and smaller than the groove depths of the first horizontal section 5102 or the first inclined section 5101, the first carrying claw 501 and the second carrying claw 502 will return in an open state;

[0079] During this process, since the tea bag 9 at the top in the tea bag storage rack 401 has been moved, the lifting mechanism will drive the stacked tea bags 9 to move upward, so that the second tea bag 9 reaches the height position of the first tea bag 9, and at the same time, the automatic tea bag loading mechanism 3 will also quantitatively load the raw dried flowers into the tea bag 9; this process can be carried out after the first carrying claw 501 and the second carrying claw 502 have moved the top tea bag 9 already filled with raw dried flowers, or after the first carrying claw 501 and the second carrying claw 502 have returned to their initial positions and clamped the tea bag 9 at the top in the tea bag storage rack 401;

[0080] In the process of the movable seat 509 returning to the starting position, the guide column 511 on the pressure plate 505 will also enter the first inclined section 5101 from the second horizontal section 5104. When the first carrying claw 501 and the second carrying claw 502 are respectively located on both sides of the second annular groove 902 of the topmost tea bag 9 in the tea bag storage rack 401, the guide column 511 enters the first inclined section 5101 from the second horizontal section 5104. Under the elastic force of the compression spring 507, the first carrying claw 501 and the second carrying claw 502 move towards each other, thereby clamping on both sides of the second annular groove 902 of the tea bag 9; finally, the linear drive mechanism 504 drives the movable seat 509 to move from the starting position to the end position again, thereby carrying out a new round of tea bag 9 transportation and transfer work.

[0081] See also Figure 1-Figure 22 The tea bag clamping mechanism 10 comprises a rotating frame 1002, a plurality of tea bag clamping mechanisms 12 arranged on the rotating frame 1002, a rotary driving mechanism for driving the plurality of tea bag clamping mechanisms 12 to rotate, and a vertical driving mechanism for driving the plurality of tea bag clamping mechanisms 12 to rise and fall, wherein:

[0082] The rotating frame 1002 is provided with a plurality of rotating arms extending along its radial direction; the plurality of rotating arms are arranged at equal angles;

[0083] The tea bag clamping mechanism 12 comprises a clamping seat 121 arranged on the rotating arm, a first clamping jaw 122 and a second clamping jaw 123 arranged on the clamping seat 121, and a tea bag unloading mechanism for driving the first clamping jaw 122 and the second clamping jaw 123 to rotate in opposite directions to release the tea bag 9, wherein the first clamping jaw 122 and the second clamping jaw 123 are both rotatably connected to the clamping seat 121; a first torsion spring 124 is respectively arranged between the first clamping jaw 122 and the second clamping jaw 123 and the clamping seat 121, and the elastic force of the first torsion spring 124 causes the first clamping jaw 122 and the second clamping jaw 123 to clamp the tea bag 9;

[0084] The rotary drive mechanism includes a rotary motor 1001 and a screw transmission mechanism arranged on the reaction tank 14, wherein the screw transmission mechanism includes a screw 1004 and a screw nut matched with the screw 1004, the upper end of the screw 1004 is mounted on the main shaft of the rotary motor 1001, and the lower end is rotatably connected to the bearing seat at the bottom of the reaction tank 14; the screw nut is mounted on the rotating frame 1002;

[0085] The vertical driving mechanism comprises a driving seat 1008 arranged at the bottom of the reaction tank 14, a driving rod 1007 arranged on the driving seat 1008, and a lifting spring 1009 arranged between the driving rod 1007 and the driving seat 1008, wherein the bottom of the driving rod 1007 is sleeved on the driving seat 1008, and the elastic force of the lifting spring 1009 causes the driving rod 1007 to move upward; the bottom of the driving rod 1007 is a special-shaped rod for preventing the driving rod 1007 from rotating, and the top of the driving rod 1007 is provided with an inclined portion; the rotating frame 1002 is provided with a driving hole 1003 matched with the driving rod 1007;

[0086] When the rotating frame 1002 is at the highest point, the part of the inclined portion of the driving rod 1007 extends into the driving hole 1003 of the rotating frame 1002; when the rotating frame 1002 needs to be driven to rotate, the rotating motor 1001 drives the screw rod 1004 to rotate clockwise. In this process, when the rotating frame 1002 rotates, since its rotation direction is the same as the inclined direction of the inclined portion at the top of the driving rod 1007, the rotating frame 1002 will cause the driving rod 1007 to overcome the elastic force of the lifting spring 1009 and move downward. At this time, the driving rod 1007 will not interfere with the rotation of the rotating frame 1002; the rotation of the rotating frame 1002 allows each group of tea bag clamping mechanisms 12 to move to the inlet and outlet of the reaction tank 14, so as to facilitate the delivery of the tea bags 9 that have completed the extraction of tea polyphenols to the outside of the reaction tank 14 and the transfer of the tea bags 9 to be extracted with tea polyphenols to the reaction tank 14;

[0087] When it is necessary to drive the rotating frame 1002 to rise or fall, the rotating motor 1001 drives the screw rod 1004 to rotate counterclockwise, and the driving rod 1007 will limit the rotation of the rotating frame 1002. At this time, the screw rod 1004 plays a role. Under the restriction of the driving rod 1007, the rotating frame 1002 can only move downward, and at the same time, the inclined portion of the driving rod 1007 also enters the driving hole 1003 of the rotating frame 1002. In the process of the inclined portion of the driving rod 1007 entering the driving hole 1003 of the rotating frame 1002, that is, under the premise of ensuring that the inclined portion of the driving rod 1007 enters the driving hole 1003 of the rotating frame 1002, the rotating motor 1001 drives the screw rod 1004 to rotate clockwise or counterclockwise, which can drive the rotating frame 1002 to rise and fall.

[0088] See also Figure 1-Figure 22The tea bag clamping mechanism 10 also includes a tea bag handover mechanism 11 for driving the tea bag clamping mechanism 12 located at the inlet and outlet of the reaction tank 14 to extend out of the reaction tank 14, wherein:

[0089] A gate 15 is provided at the inlet and outlet of the reaction tank 14, and the upper end of the gate 15 is rotatably connected to the reaction tank 14 and can be adsorbed at the inlet and outlet of the reaction tank 14 by magnetic adsorption;

[0090] The tea bag delivery mechanism 11 includes a sliding sleeve 114 and a delivery drive mechanism for driving the sliding sleeve 114 to perform radial motion, wherein the sliding sleeve 114 is arranged on the rotating arm of the rotating frame 1002; the clamping seat 121 is installed at the bottom of the sliding sleeve 114; the delivery drive mechanism includes a driving block 112 and a linear driver 111 for driving the driving block 112 to perform linear motion, wherein a driving groove is arranged at the bottom of the driving block 112; and a driving column 113 is arranged on the sliding sleeve 114;

[0091] When the tea bag clamping mechanism 12 rotates to the gate 15 along with the rotating frame 1002, the driving column 113 in the sliding sleeve 114 corresponding to the tea bag clamping mechanism 12 is located in the driving groove of the driving block 112; since the linear driver 111 is arranged outside the reaction tank 14, and the driving block 112 is arranged inside the reaction tank 14, the reaction tank 14 needs to be provided with a moving groove (whose length is the same as the moving stroke of the driving block 112) for the movement of the driving block 112; therefore, a sealing structure (such as a sealing strip, which moves synchronously with the driving block 112) needs to be provided. In this way, the movable groove in the reaction tank 14 is sealed), so that in the process of extracting tea polyphenols, the sealing strip can seal the movable groove in the reaction tank 14, thereby ensuring that the reaction tank 14 always remains in a sealed state; the linear drive 111 drives the driving block 112 to move, thereby driving the driving column 113 on the sliding sleeve 114 to move radially, thereby driving the tea bag clamping mechanism 12 to move outward, wherein a guide wheel 115 is provided at the end of the sliding sleeve 114, and the gate 15 is pushed open by the guide wheel 115, so that the tea bag clamping mechanism 12 moves to the intersection position outside the reaction tank 14.

[0092] See also Figure 1-Figure 22The tea bag unloading mechanism includes a support frame 116 arranged at the inlet and outlet of the reaction tank 14 and a wedge block 117 arranged on the support frame 116. In the process of the handover drive mechanism driving the sliding sleeve 114 to move outside the reaction tank 14, the wedge block 117 enters between the first clamping jaw 122 and the second clamping jaw 123, so as to drive the first clamping jaw 122 and the second clamping jaw 123 to overcome the elastic force of the first torsion spring 124 to move in the opposite direction to loosen the tea bag 9 after the tea polyphenols are extracted; so that the tea bag 9 falls into the tea bag collection basket 7 outside the reaction tank 14; when the handover drive mechanism drives the sliding sleeve 114 to return, the wedge block 117 is gradually withdrawn from between the first clamping jaw 122 and the second clamping jaw 123, and the first clamping jaw 122 and the second clamping jaw 123 rotate towards each other under the elastic force of the first torsion spring 124, so as to clamp the tea bag 9 transported by the tea bag transporting mechanism;

[0093] That is to say, when the wedge block 117 is completely pulled out from between the first clamp 122 and the second clamp 123, the first clamp 122 and the second clamp 123 complete the clamping of the first annular groove 901 in the tea bag 9 to be extracted with tea polyphenols, and at this time, the guide column 511 also completely climbs onto the second inclined section 5103; the first carrying claw 501 and the second carrying claw 502 also completely disengage from the second annular groove 902 in the tea bag 9 to be extracted with tea polyphenols, thereby realizing the transfer and handover of the tea bag 9 to be extracted with tea polyphenols.

[0094] See also Figure 1-Figure 22 The tea bag kneading mechanism 13 includes a kneading static plate, a kneading dynamic plate 131 and a kneading driving mechanism for driving the kneading dynamic plate 131 to rotate, wherein:

[0095] The kneading static disk and the kneading dynamic disk 131 are both in multiple groups, and the multiple groups of kneading static disks and the multiple groups of kneading dynamic disks 131 correspond one to one, wherein the multiple groups of kneading dynamic disks 131 are rotatably connected to the bottom of the reaction tank 14 through the rotating shaft respectively; the multiple groups of kneading static disks are installed on the lifting seat 135; the bottom of the screw rod 1004 is provided with an optical axis portion 1006; the lifting seat 135 is slidably connected to the optical axis portion 1006 of the screw rod 1004; the upper end of the optical axis portion 1006 is provided with a limiting ring 1005; a tension spring 138 is provided between the bearing seat and the lifting seat 135, the upper end of the tension spring 138 acts on the lifting seat 135, and the lower end acts on the bearing seat; the elastic force of the tension spring 138 prompts the lifting seat 135 to move in the direction of the limiting ring 1005;

[0096] The kneading static plate is composed of a first static plate body 132 and a second static plate body 133, and the first static plate body 132 and the second static plate body 133 are rotatably connected to the lifting seat 135; a second torsion spring 137 is arranged between the first static plate body 132 and the second static plate body 133 and the lifting seat 135, and the elastic force of the second torsion spring 137 causes the first static plate body 132 and the second static plate body 133 to rotate to a vertical state;

[0097] The tea bag kneading mechanism 13 also includes a tea bag sealing mechanism for sealing the upper end of the tea bag 9 during the kneading process, and the tea bag sealing mechanism includes a driving member 125 arranged at the bottom of the clamping seat 121; a driving plate 134 is arranged in the first static plate body 132 and the second static plate body 133, and the driving plate 134 is arranged at 90 degrees to the first static plate body 132 and the second static plate body 133 respectively; when the rotating frame 1002 descends to a preset height, the driving member 125 at the bottom of the clamping seat 121 drives the first The driving plates 134 in the static plate body 132 and the second static plate body 133 rotate in opposite directions to drive the first static plate body 132 and the second static plate body 133 to rotate in opposite directions and seal the tea bag 9, that is, the first static plate body 132 and the second static plate body 133 are clamped on both sides of the net bag 903 of the tea bag 9; elastic members can be provided at the contacting parts of the first static plate body 132 and the second static plate body 133 with the net bag 903 of the tea bag 9, so as to realize elastic clamping of both sides of the net bag 903 of the tea bag 9;

[0098] The kneading drive mechanism includes a kneading motor 1311 and a belt transmission mechanism, wherein the belt transmission mechanism includes a driving wheel, a driven wheel 139 and a synchronous belt 1310, wherein the kneading motor 1311 is installed at the bottom of the reaction tank 14; the driven wheel 139 is installed at the lower end of the rotating shaft of each group of kneading disks 131; and the synchronous belt 1310 is wrapped around the driving wheel and all the driven wheels 139.

[0099] The working principle of the tea bag kneading mechanism 13 of the present invention is:

[0100] The rotating frame 1002 and the multiple tea bag clamping mechanisms 12 installed on the rotating frame 1002 are driven to move downward by the vertical driving mechanism. During this process, when the rotating frame 1002 descends to a predetermined height, part of the mesh bag 903 of the tea bag 9 has entered under the rubbing static plate; considering that the raw dried flowers will expand when absorbing water, the height of the raw dried flowers in the tea bag 9 is required to be less than the height of the part of the mesh bag 903, and the difference is a set value; the driving member 125 (i.e., two sets of driving wheels) at the bottom of the clamping seat 121 contacts the driving plates 134 in the first static plate body 132 and the second static plate body 133, thereby driving the driving plates 134 in the first static plate body 132 and the second static plate body 133 134 makes a downward reverse rotation, thereby driving the first static plate body 132 and the second static plate body 133 to make a downward reverse rotation; when the rotating frame 1002 contacts the pressing rod 136 on the lifting seat 135, the first static plate body 132 and the second static plate body 133 merge to clamp on both sides of the net bag 903 of the tea bag 9. At this time, the first static plate body 132 and the second static plate body 133 are located above the height of the raw dried flowers in the tea bag 9 to achieve sealing of the tea bag 9; this can prevent the golden camellia that is broken during the kneading process from floating out of the opening of the tea bag 9 under the buoyancy of the extract and overflowing in the extract, which can reduce impurities in the dissolving solution and reduce the later processing cost of the dissolving solution.

[0101] As the rotating frame 1002 continues to descend, the rotating frame 1002 will drive the lifting seat 135 to move downward synchronously; the kneading motor 1311 is started, and drives the multiple groups of kneading disks 131 to rotate through the belt transmission mechanism; the rotating frame 1002 drives the multiple groups of tea bag clamping mechanisms 12 to make vertical reciprocating motion back and forth within the height range between the lowest point and the limit ring 1005, and also prompts the kneading static disk to make vertical reciprocating motion within this vertical stroke range, so as to achieve repeated pressing of the golden camellia in the tea bag 9 on the kneading disk 131, and as the kneading disk 131 rotates, the golden camellia in the tea bag 9 is repeatedly kneaded, so that the tea polyphenols in the golden camellia can be quickly precipitated.

[0102] When the extraction of tea polyphenols is completed, the dissolving liquid conveying device draws away the dissolving liquid; the vertical driving mechanism drives the rotating frame 1002 and the multiple sets of tea bag clamping mechanisms 12 arranged on the rotating frame 1002 to move upward, and at this time, the lifting seat 135 will also rise accordingly, until the lifting seat 135 contacts the limiting ring 1005 in the optical axis part 1006, and the lifting seat 135 stops rising; thereafter, as the rotating frame 1002 continues to rise, the driving member 125 on the clamping seat 121 also continues to rise and gradually separates from the driving plates 134 in the first static plate body 132 and the second static plate body 133; the driving plates 134 in the first static plate body 132 and the second static plate body 133 The plate 134 is reset under the elastic force of the second torsion spring 137, so that the first static plate body 132 and the second static plate body 133 rotate upward in opposite directions, thereby gradually loosening the tea bag 9; when the rotating frame 1002 moves to the highest point of the screw thread in the screw 1004, as the rotating motor 1001 continues to rotate (i.e., rotates clockwise), the rotating frame 1002 no longer moves upward, but rotates to rotate each group of tea bag clamping mechanisms 12 to the inlet and outlet of the reaction tank 14; then the tea bags 9 from which tea polyphenols have been extracted are sent to the tea bag collection basket 7, and the tea bags 9 from which tea polyphenols are to be extracted are transferred to the reaction tank 14 for a new round of tea polyphenol extraction.

[0103] In the present embodiment, the tea bag clamping mechanism 12, the kneading static plate and the kneading dynamic plate 131 are all four groups, which is equivalent to saying that tea polyphenols can be extracted from four groups of tea bags 9 at the same time. The advantages of this are: (1) In the same time, the present embodiment can extract tea polyphenols from more golden camellia, which is beneficial to improving the extraction efficiency of tea polyphenols; (2) Under the premise of using the same weight of golden camellia for tea polyphenol extraction, the present embodiment can divide it into four parts and place them in four tea bags 9 respectively, so that the golden camellia in each tea bag 9 can be fully kneaded, which is beneficial to the rapid precipitation of tea polyphenols therein; if a single tea bag 9 is used, it may lead to insufficient kneading, so that part of the golden camellia cannot be fully kneaded, which not only leads to the failure to fully precipitate the tea polyphenols therein, but also wastes raw materials and increases the extraction cost of tea polyphenols.

[0104] See also Figure 1-Figure 22 The automatic extraction process of tea polyphenols from Camellia chrysantha of the present invention comprises the following steps:

[0105] S1: Spreading and drying the raw material of Camellia chrysantha until there is no obvious moisture on the surface to obtain the raw material dried flower;

[0106] S2: placing the obtained raw dried flowers into a pollen screening device, wherein the pollen screening device screens out pollen from the raw dried flowers;

[0107] S3: The raw dried flowers after pollen is screened out are quantitatively loaded into tea bags 9 by the golden camellia loading device; the tea bags 9 are transported to the handover position by the tea bag transporting device 5, and the tea bag clamping mechanism 10 delivers the tea bags 9 after tea polyphenols extraction to the tea bag collecting basket 7, and then the tea bags transported by the tea bag transporting device 5 are clamped at the handover position and transferred to the reaction tank 14;

[0108] S4: The extracting liquid conveying device introduces the extracting liquid into the reaction tank 14, and the raw dried flowers are soaked by the extracting liquid. During this process, the tea bag kneading mechanism 13 twists and rubs the tea bag 9, wherein the temperature of the soaking liquid is 60°C-85°C, and the soaking time is 1-2h to obtain a dissolved liquid;

[0109] S5: After the leaching is completed, the obtained solution is post-treated: the post-treatment process includes washing, acidification, extraction, desolventization and drying, so as to obtain the finished tea polyphenols.

[0110] Example 2

[0111] See also Figure 5 and Figure 6 The difference between this embodiment and embodiment 1 is that:

[0112] In this embodiment, a second support spring 405 is provided between the lifting frame 404 and the lifting support plate 402. The upper end of the second support spring 405 acts on the lower end of the lifting support plate 402, and the lower end acts on the lifting frame 404.

[0113] In this embodiment, after the first carrying claw 501 and the second carrying claw 502 return to the initial position to clamp the tea bag 9 located at the top in the tea bag storage rack 401, the automatic tea bag loading mechanism 3 starts to unload the tea bag. When the first tea bag 9 starts to be loaded, the net bag 903 in the tea bag 9 gradually opens from a folded state, which prompts the second tea bag 9 and the tea bags 9 below it to move downward, so that the lifting support plate 402 compresses the second supporting spring 405, thereby allowing the first tea bag 9 to have enough expansion space to hold the raw dried flowers.

[0114] This method is applicable when the inner diameter of the net bag 903 in the tea bag 9 is the same as the inner diameter of the support ring, that is, when the stacking of two adjacent tea bags 9 is not a nested stacking (such as the stacking method of disposable paper cups).

[0115] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An automatic extraction device for tea polyphenols from Camellia chrysantha, characterized in that: The invention comprises a frame, a pollen screening device arranged on the frame, a golden camellia loading device, a tea bag conveying device and a tea polyphenol extraction device, wherein: The pollen screening device is used to screen out pollen in Camellia chrysantha; The golden camellia loading device is used to quantitatively load the golden camellia after the pollen is screened out into the tea bag; The tea bag conveying device is used to convey the tea bag containing golden camellia to the tea polyphenols extraction device; The tea polyphenol extraction device is used to extract tea polyphenols from golden camellia tea in a tea bag, comprising a reaction tank, a tea bag clamping mechanism arranged in the reaction tank, and a tea bag kneading mechanism for kneading the tea bag in the tea bag clamping mechanism to promote the full extraction of tea polyphenols from the golden camellia tea, wherein: The reaction tank is provided with an inlet and outlet, a liquid inlet and a liquid outlet, wherein the liquid inlet is connected to an extracting liquid conveying device, and the extracting liquid conveying device is used to convey the extracting liquid into the reaction tank; the liquid outlet is connected to a dissolving liquid conveying device, and the dissolving liquid conveying device is used to convey the dissolving liquid containing tea polyphenols to a subsequent processing step; the inlet and outlet are used for the tea packing clamping mechanism to take out the tea bag after the tea polyphenols extraction from the reaction tank, and at the same time for the tea packing clamping mechanism to transfer the tea bag to be extracted with tea polyphenols conveyed by the tea bag conveying device into the reaction tank; The tea bag clamping mechanism comprises a rotating frame, a plurality of tea bag clamping mechanisms arranged on the rotating frame, a rotary driving mechanism for driving the plurality of tea bag clamping mechanisms to rotate, and a vertical driving mechanism for driving the plurality of tea bag clamping mechanisms to rise and fall, wherein: The rotating frame is provided with a plurality of groups of rotating arms extending along the radial direction thereof; The tea bag clamping mechanism comprises a clamping seat arranged on the rotating arm, a first clamping jaw and a second clamping jaw arranged on the clamping seat, and a tea bag unloading mechanism for driving the first clamping jaw and the second clamping jaw to rotate in opposite directions to release the tea bag, wherein the first clamping jaw and the second clamping jaw are both rotatably connected to the clamping seat; a first torsion spring is respectively arranged between the first clamping jaw and the second clamping jaw and the clamping seat, and the elastic force of the first torsion spring prompts the first clamping jaw and the second clamping jaw to clamp the tea bag; The rotary drive mechanism comprises a rotary motor and a screw transmission mechanism arranged on the reaction tank, wherein the screw transmission mechanism comprises a screw and a screw nut matched with the screw, the upper end of the screw is mounted on the main shaft of the rotary motor, and the lower end is rotatably connected to the bearing seat at the bottom of the reaction tank; the screw nut is mounted on the rotating frame; The vertical driving mechanism comprises a driving seat arranged at the bottom of the reaction tank, a driving rod arranged on the driving seat, and a lifting spring arranged between the driving rod and the driving seat, wherein the lower end of the driving rod is sleeved on the driving seat, and the elastic force of the lifting spring causes the driving rod to move upward; the bottom of the driving rod is a special-shaped rod, and the top of the driving rod is provided with an inclined portion; the rotating frame is provided with a driving hole matched with the driving rod; When the rotating frame is at the highest point, part of the inclined portion of the driving rod extends into the driving hole of the rotating frame; when the rotating frame needs to be driven to rotate, the rotating motor drives the screw rod to rotate clockwise; when the rotating frame needs to be driven to descend, the rotating motor drives the screw rod to rotate counterclockwise, so that the inclined portion of the driving rod completely enters the driving hole of the rotating frame; on the premise that the inclined portion of the driving rod completely enters the driving hole of the rotating frame, the rotating motor drives the screw rod to rotate clockwise or counterclockwise, thereby driving the rotating frame to rise and descend.

2. The automatic extraction equipment for tea polyphenols from Camellia chrysantha according to claim 1, characterized in that: The pollen screening device comprises a primary pollen screening mechanism and a secondary pollen screening mechanism arranged on a frame, wherein: The pollen primary screening mechanism comprises a first roller arranged obliquely and a first stirring mechanism for stirring the golden camellia in the first roller, wherein a first feed hopper is arranged on the first roller, and the first feed hopper is arranged at the upper end of the first roller; a first discharge port is arranged at the bottom of the first roller; the first stirring mechanism comprises a first air inlet arranged on the lower side of the first roller and a first pollen collecting port arranged on the upper side of the first roller; the first air inlet is connected to the air supply device; and the first pollen collecting port is connected to the pollen collecting device through a negative pressure device; The pollen secondary screening mechanism includes a horizontally arranged second roller and a second stirring mechanism for stirring the golden camellia in the second roller, wherein a second feed hopper is arranged on the left side of the second roller, and the second feed hopper is arranged at the lower end of the first discharge port of the first roller; a second discharge port is arranged on the right side of the second roller; the second stirring mechanism includes a first rotating shaft, a first spiral blade arranged on the first rotating shaft and a stirring motor for driving the first spiral blade to rotate, wherein the first rotating shaft extends along the axial direction of the second roller; the stirring motor is connected to the first rotating shaft; a second pollen collecting port is arranged on the upper side of the second roller; and the second pollen collecting port is connected to the pollen collecting device through a negative pressure device.

3. The automatic extraction device for tea polyphenols from Camellia chrysantha according to claim 2, characterized in that: The golden camellia loading device comprises a tea bag loading mechanism and a tea bag automatic loading mechanism for quantitatively loading the golden camellia after secondary pollen screening into the tea bag, wherein: The tea bag feeding mechanism comprises a tea bag storage rack and a lifting mechanism arranged in the tea bag storage rack for driving the tea bags in the tea bag storage rack to rise and fall, wherein a lifting support plate is arranged in the tea bag storage rack, and a plurality of groups of tea bags are vertically stacked and placed on the lifting support plate in the tea bag storage rack; the lifting mechanism comprises a lifting frame and a lifting driving mechanism for driving the lifting frame to rise and fall, wherein the lifting frame is connected to the lifting support plate; The automatic tea bag loading mechanism includes a loading tank, a second rotating shaft arranged on the loading tank, a second spiral blade arranged on the second rotating shaft, and a loading motor for driving the second spiral blade to rotate, wherein the loading tank is vertically arranged, the feeding port of the loading tank is connected with the second discharging port of the second roller; the discharging port of the loading tank is located directly above the tea bag storage rack; the second rotating shaft is vertically arranged, and the main shaft of the loading motor is connected to the second rotating shaft.

4. The automatic extraction equipment for tea polyphenols from Camellia chrysantha according to claim 1, characterized in that: The tea bag comprises a support ring and a mesh bag arranged at the lower end of the support ring, wherein the support ring is provided with a first annular groove and a second annular groove, and the first annular groove is located above the second annular groove; The tea bag transport device comprises a tea bag transport mechanism for clamping and releasing the second annular groove in the tea bag and a tea bag transport transfer mechanism for driving the tea bag transport mechanism to move to a handover position to realize handover of the tea bag to the tea bag clamping mechanism, wherein: The tea bag transport mechanism comprises a first transport claw, a second transport claw and a transport driving mechanism for driving the first transport claw and the second transport claw to move toward or in opposite directions; The tea bag transporting and transferring mechanism comprises a transport frame, a moving seat arranged on the transport frame, and a linear driving mechanism for driving the moving seat to perform linear motion.

5. The automatic extraction device for tea polyphenols from Camellia chrysantha according to claim 4, characterized in that: The transport drive mechanism comprises a sliding seat and transport drive components arranged on both sides of the sliding seat, wherein: A slide groove is arranged in the sliding seat, the slide groove extends vertically, and sliding parts cooperating with the slide groove are arranged on both sides of the moving seat; a return spring is arranged between the bottom of the moving seat and the sliding seat, and the elastic force of the return spring causes the sliding seat to move downward; Guide grooves are provided on both sides of the transport frame, and the guide grooves include a first inclined section, a first horizontal section, a second inclined section and a second horizontal section that are connected in sequence, wherein the groove depths of the first inclined section and the first horizontal section are the same, both are L1; the groove depths of the second inclined section and the second horizontal section are the same, both are L2; and L1 is greater than L2; a first transition portion is provided between the first horizontal section and the second inclined section; a second transition portion or a step surface is provided between the second horizontal section and the first inclined section; The transport drive assembly includes a pressure plate and a guide column arranged on the inner side of the pressure plate and cooperating with the guide groove, wherein the first transport claw and the second transport claw are respectively mounted on the pressure plate; the upper and lower ends of the pressure plate are respectively mounted on the sliding seat through a guide structure; the guide structure includes a guide hole arranged on the pressure plate and a guide shaft cooperating with the guide hole; the guide shaft is vertically arranged to the pressure plate; one end of the guide shaft is fixed to the sliding seat, and the other end passes through the guide hole and is connected to the limit block; the outer diameter of the limit block is larger than the inner diameter of the guide hole; a compression spring is arranged between the limit block and the pressure plate; the elastic force of the compression spring causes the pressure plate to move toward the direction of the transport frame.

6. The automatic extraction equipment for tea polyphenols from Camellia chrysantha according to claim 5, characterized in that: The tea bag clamping mechanism also includes a tea bag handover mechanism for driving the tea bag clamping mechanism located at the inlet and outlet of the reaction tank to extend out of the reaction tank, wherein: A gate is provided at the inlet and outlet of the reaction tank, and the upper end of the gate is rotatably connected to the reaction tank; The tea bag handover mechanism comprises a sliding sleeve and a handover driving mechanism for driving the sliding sleeve to make radial movement, wherein the sliding sleeve is arranged on the rotating arm of the rotating frame; the clamping seat is installed at the bottom of the sliding sleeve; the handover driving mechanism comprises a driving block and a linear driver for driving the driving block to make linear movement; a driving groove is arranged at the bottom of the driving block; a driving column is arranged on the sliding sleeve; when the tea bag clamping mechanism moves to the gate, the driving column in the sliding sleeve corresponding to the tea bag clamping mechanism is located in the driving groove of the driving block; The tea bag unloading mechanism includes a support frame arranged at the inlet and outlet of the reaction tank and a wedge block arranged on the support frame. When the linear drive drives the sliding sleeve to move outside the reaction tank, the wedge block extends between the first jaw and the second jaw, thereby driving the first jaw and the second jaw to rotate in opposite directions to loosen the tea bag from which the tea polyphenols have been extracted.

7. The automatic extraction device for tea polyphenols from Camellia chrysantha according to claim 6, characterized in that: The tea bag kneading mechanism comprises a static kneading plate, a dynamic kneading plate and a kneading driving mechanism for driving the dynamic kneading plate to rotate, wherein: The kneading static disk and the kneading dynamic disk are both in multiple groups, and the multiple groups of kneading static disks correspond to the multiple groups of kneading dynamic disks one by one, wherein the multiple groups of kneading dynamic disks are rotatably connected to the bottom of the reaction tank through rotating shafts respectively; the multiple groups of kneading static disks are installed on the lifting seat; the bottom of the screw rod is provided with an optical axis portion; the lifting seat is slidably connected to the optical axis portion of the screw rod; a limiting ring is provided at the upper end of the optical axis portion; a tension spring is provided between the bearing seat and the lifting seat, the upper end of the tension spring acts on the lifting seat, and the lower end acts on the bearing seat; the elastic force of the tension spring prompts the lifting seat to move in the direction of the limiting ring; The kneading drive mechanism includes a kneading motor and a belt transmission mechanism, wherein the belt transmission mechanism includes a driving wheel, a driven wheel and a synchronous belt, wherein the kneading motor is installed at the bottom of the reaction tank; the driven wheel is installed at the lower end of the rotating shaft of each group of kneading disks; and the synchronous belt is wrapped around the driving wheel and all the driven wheels.

8. The automatic extraction device for tea polyphenols from Camellia chrysantha according to claim 7, characterized in that: The kneading static plate is composed of a first static plate body and a second static plate body, and the first static plate body and the second static plate body are both rotatably connected to the lifting seat; a second torsion spring is respectively arranged between the first static plate body and the second static plate body and the lifting seat, and the elastic force of the second torsion spring causes the first static plate body and the second static plate body to rotate to a vertical state; The tea bag kneading mechanism also includes a tea bag sealing mechanism for sealing the upper end of the tea bag during the kneading process, and the tea bag sealing mechanism includes a driving member arranged at the bottom of the clamping seat; a driving plate is arranged in the first static plate body and the second static plate body, and the driving plate is respectively arranged at 90 degrees to the first static plate body and the second static plate body; when the rotating frame descends to a preset height, the driving member at the bottom of the clamping seat contacts the driving plate and drives the driving plates in the first static plate body and the second static plate body to rotate in the opposite direction, thereby driving the first static plate body and the second static plate body to rotate in the opposite direction and seal the tea bag.

9. An extraction process for the automatic extraction equipment for tea polyphenols from Camellia chrysantha according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: Spreading and drying the picked Camellia chrysantha raw materials to obtain raw dried flowers; S2: placing the obtained raw dried flowers into a pollen screening device, wherein the pollen screening device screens out pollen from the raw dried flowers; S3: The raw dried flowers after pollen is screened out are quantitatively loaded into tea bags by the golden camellia loading device; the tea bags are transported to the handover position by the tea bag transporting device, and the tea bag clamping mechanism sends the tea bags after tea polyphenols extraction to the tea bag collecting device, and then the tea bags transported by the tea bag transporting device are clamped at the handover position and transferred to the reaction tank; S4: The extracting liquid conveying device introduces the extracting liquid into the reaction tank, and the raw dried flowers are soaked by the extracting liquid. During this process, the tea bag kneading mechanism twists and rubs the tea bag, wherein the temperature of the soaking liquid is 60°C-85°C, and the soaking time is 1-2h to obtain a dissolved liquid; S5: After the leaching is completed, the obtained solution is subjected to post-treatment, wherein the post-treatment includes washing, acidification, extraction, desolventization and drying, so as to obtain the finished tea polyphenols.

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