An apparatus for extracting flavones from a lacquer tree

By processing the bark of the lacquer tree at room temperature using fragments and a multi-stage extrusion assembly, the problems of active ingredient destruction and low extraction efficiency caused by high-temperature reflux are solved, achieving efficient flavonoid extraction and reducing solvent use and component loss.

CN224541025UActive Publication Date: 2026-07-24XIAN LACQUER PAINT RES INST OF ALL CHINA SUPPLY & MARKETING COOP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAN LACQUER PAINT RES INST OF ALL CHINA SUPPLY & MARKETING COOP
Filing Date
2025-09-03
Publication Date
2026-07-24

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Abstract

The utility model relates to the technical field of flavone extraction, particularly relates to a device for extracting flavone from lacquer tree, including broken piece subassembly and grinding assembly, and the one end of broken piece subassembly and grinding assembly is communicated through the conveying pipe. The other end of grinding assembly is provided with outflow pipe, and the end of outflow pipe is fixedly provided with grinding motor, and a plurality of extrusion assemblies are evenly distributed in the grinding assembly. After the treatment of broken piece subassembly and grinding assembly, the lacquer tree bark is completely crushed, the extraction efficiency is improved, the extraction can be carried out at normal temperature, heating is not needed, and the use amount of extraction solvent is small.
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Description

Technical Field

[0001] This utility model relates to the field of flavonoid extraction technology, and in particular to an apparatus for extracting flavonoids from lacquer trees. Background Technology

[0002] The lacquer tree is an important economic forest species in my country. Its secretion, raw lacquer, is a natural resin coating and is known as the "King of Coatings." The seed coat of the lacquer tree fruit can be pressed to extract wax, the kernels can be pressed to produce oil, and the wood is hard and durable. The lacquer tree grows rapidly and is a multi-purpose species used for natural coatings, oil, and timber. The lacquer tree also has excellent medicinal value; its leaves, flowers, roots, bark, seeds, dried lacquer, and wood can all be used medicinally, with effects such as relieving coughs, reducing swelling, regulating menstruation, killing parasites, and reducing inflammation.

[0003] Currently, most foreign extraction and separation techniques for flavonoids from lacquer trees use water or alcohol as solvents for hot reflux extraction, and column chromatography (silica gel column, gel chromatography column, and ODS column) is employed for separation. However, these extraction methods primarily utilize high-temperature hot reflux, which damages the active ingredients in the lacquer tree during the extraction process, and also results in low extraction efficiency and a limited abundance of active ingredients. Utility Model Content

[0004] In view of the above situation and to overcome the shortcomings of the prior art, this utility model provides a device for extracting flavonoids from lacquer trees, which can directly extract at room temperature, with short extraction time and high extraction efficiency.

[0005] The technical solution adopted by this utility model is as follows: This utility model provides a device for extracting flavonoids from lacquer trees, including a fragmentation component and a grinding component, with one end of the fragmentation component and the grinding component connected by a conveying pipe.

[0006] An outlet pipe is provided at the other end of the grinding assembly, and a grinding motor is fixedly installed at the end of the outlet pipe; multiple extrusion components are evenly distributed inside the grinding assembly.

[0007] In one embodiment, the fragmentation assembly includes a housing, with a feed inlet on the upper side of the housing and a fragmentation roller rotatably mounted on the bottom of the housing. The end of the fragmentation roller is rotatably connected to the housing via a first bearing seat. The end of the fragmentation roller is fixedly connected to the output shaft of a fragmentation motor, and the fragmentation motor is bolted to the outside of the housing.

[0008] In one embodiment, fragment baffles are provided on both sides of the fragment roller, and multiple axially arranged grooves are evenly distributed around the fragment roller.

[0009] In one embodiment, the grinding assembly includes a grinding cylinder with support plates bolted to both ends. A drive shaft passes through the support plates and is rotatably connected to the support plates via a second bearing seat. The end of the drive shaft is fixedly connected to the output shaft of the grinding motor, and multiple extrusion components are sleeved on the drive shaft.

[0010] In one embodiment, the extrusion assembly includes an extrusion sleeve, a conical disc coaxially disposed inside the extrusion sleeve, and a plurality of extrusion rollers rotatably disposed on the outer periphery of the conical disc, the extrusion rollers rolling on the inner side of the extrusion sleeve; the conical disc is sleeved on the outer side of the drive shaft.

[0011] In one embodiment, a mounting plate is sleeved on the lower side of the conical disc, and an extrusion wheel is rotatably connected between the conical disc and the mounting plate; a positioning sleeve is coaxially provided on the lower side of the mounting plate.

[0012] In one embodiment, a conical surface is provided on the upper side of the conical disk. Through the guiding effect of the conical surface, combined with centrifugal force, the lacquer tree fragments are guided between the extrusion wheel and the extrusion sleeve.

[0013] In one embodiment, a feed ramp is provided at the upper end of the extrusion sleeve, and a discharge ramp is provided on the inner side of the lower end of the extrusion sleeve.

[0014] The beneficial effects achieved by this utility model using the above structure are:

[0015] The device for flavonoid extraction of this invention, after being processed by the fragmentation and grinding components, thoroughly crushes the lacquer tree bark, which facilitates improved extraction efficiency. Extraction can be carried out at room temperature without heating, and the amount of extraction solvent used is small, thus avoiding damage to the components of the lacquer tree. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the fragment component structure of this utility model;

[0018] Figure 3 This utility model Figure 2 Schematic diagram of the structure at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the grinding assembly structure of this utility model;

[0020] Figure 5 This is a cross-sectional view of the grinding assembly of this utility model;

[0021] Figure 6 This is a schematic diagram of the extrusion assembly structure of this utility model;

[0022] Figure 7 This is a cross-sectional view of the extrusion assembly of this utility model.

[0023] Among them, 1 is the fragment assembly, 11 is the conveying pipe, 12 is the housing, 13 is the fragment motor, 14 is the fragment roller, 15 is the fragment baffle, 16 is the fragment outlet, and 17 is the first bearing seat;

[0024] 2 Grinding assembly, 21 Outlet pipe, 211 Grinding motor, 212 Drive shaft, 22 Grinding cylinder, 221 Support plate, 222 Second bearing seat;

[0025] 23 Extrusion assembly, 231 Extrusion sleeve, 2311 Feed slope, 2312 Discharge slope, 232 Conical disc, 2321 Conical surface, 234 Extrusion wheel, 235 Mounting disc, 236 Positioning sleeve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-7 As shown, this utility model provides an apparatus for extracting flavonoids from lacquer trees, including a fragmentation component 1 and a grinding component 2, with one end of the fragmentation component 1 and the grinding component 2 connected by a conveying pipe 11.

[0028] The other end of the grinding assembly 2 is provided with an outlet pipe 21, and a grinding motor 211 is fixedly installed at the end of the outlet pipe 21. The grinding motor 211 provides power to the grinding assembly 2 for grinding.

[0029] The grinding component 2 has multiple extrusion components 23 evenly distributed inside. The multiple extrusion components 23 realize multi-stage extrusion to grind and crush the dried lacquer tree bark.

[0030] See Figure 2 and Figure 3 The fragment assembly 1 includes a housing 12, with a feed inlet on the upper side of the housing 12. The dried lacquer tree bark is fed into the fragment assembly 1 through the feed inlet on the housing 12 for crushing. A fragment roller 14 is rotatably mounted at the bottom of the housing 12, and the end of the fragment roller 14 is rotatably connected to the housing 12 through a first bearing seat 17.

[0031] The end of the fragment roller 14 is fixedly connected to the output shaft of the fragment motor 13, which is bolted to the outside of the housing 12.

[0032] Fragment baffles 15 are provided on both sides of the fragment roller 14. Multiple axially arranged grooves are evenly distributed around the fragment roller 14. Through the relative movement between the grooves and the fragment baffles 15, the shearing action on the lacquer tree bark is achieved, thus completing the tearing of the lacquer tree bark.

[0033] See Figure 4 and Figure 5The grinding assembly 2 includes a grinding cylinder 22, both ends of which are bolted to support plates 221. A drive shaft 212 passes through the support plates 221, and the drive shaft 212 is rotatably connected to the support plates 221 through a second bearing seat 222.

[0034] The end of the drive shaft 212 is fixedly connected to the output shaft of the grinding motor 211, and the grinding motor 211 drives the drive shaft 212 to rotate.

[0035] Multiple extrusion components 23 are sleeved on the drive shaft 212. The drive shaft 212 drives the extrusion components 23 to rotate. The multiple extrusion components 23 further extrude and grind the torn lacquer tree bark into powder, which facilitates the extraction of flavonoids.

[0036] See Figure 6 and Figure 7 The extrusion assembly 23 includes an extrusion sleeve 231, which is fixedly connected to a support plate 221 by multiple screws passing through its outer side. The support plate 221 fixes the position of the extrusion sleeve 231.

[0037] A conical disk 232 is coaxially arranged inside the extrusion sleeve 231, and multiple extrusion rollers 234 are rotatably arranged on the outer periphery of the conical disk 232. The extrusion rollers 234 roll on the inner side of the extrusion sleeve 231.

[0038] The conical disc 232 is sleeved on the outside of the drive shaft 212 and is circumferentially fixed to the drive shaft 212 by means of a sliding key.

[0039] The lower side of the conical disc 232 is fitted with the mounting disc 235, and the extrusion wheel 234 is rotatably connected between the conical disc 232 and the mounting disc 235; a positioning sleeve 236 is coaxially arranged on the lower side of the mounting disc 235, and the axial relative positioning between the conical disc 232 and the extrusion sleeve 231 of the multiple extrusion components 23 is achieved through the positioning sleeve 236.

[0040] See Figure 7 A conical surface 2321 is provided on the upper side of the conical disk 232. Through the guiding effect of the conical surface 2321 and the centrifugal force, the lacquer tree fragments are guided between the extrusion roller 234 and the extrusion sleeve 231. Through the rotation of the extrusion roller 234 on the extrusion sleeve 231, the lacquer tree bark fragments are ground and extruded into rice-like pieces, which is convenient for the next step of extraction.

[0041] The upper end of the extrusion sleeve 231 is provided with a feed ramp 2311, and the lower inner side of the extrusion sleeve 231 is provided with a discharge ramp 2312. The feed ramp 2311 guides the lacquer tree bark fragments into the extrusion roller 234. The discharge ramp 2312 facilitates the guidance of the lacquer tree bark fragments into the conical surface 2321 of the conical disk 232 of the next extrusion assembly, which is convenient for the next stage of grinding and extrusion.

[0042] The working principle is as follows: dried lacquer tree bark is fed into the feed inlet of the fragment assembly 1. Under the interaction of the fragment roller 14 and the fragment baffle 15, the lacquer tree bark is torn into fragments and then flows out from the fragment outlet 16. Subsequently, under the guidance of the conveying pipe 11, it enters the grinding assembly 2.

[0043] The grinding motor 211 drives the conical disc 232 of multiple extrusion components 23 to rotate relative to the extrusion sleeve 231 via the drive shaft 212. The conical disc 232 drives multiple extrusion rollers 234 on the outer periphery to extrude and grind the lacquer tree bark fragments in one embodiment.

[0044] The lacquer tree bark fragments are ground into powder by the multi-stage extrusion assembly 23, and then flow out from the outflow pipe 21 into the collection box. The extraction solvent is then added to the collection box to extract the flavonoids. The extract is then evaporated under reduced pressure to recover the solvent, and after drying, the lacquer tree flavonoid compounds are obtained, thus completing the extraction of flavonoids.

[0045] The device for extracting flavonoids from lacquer trees provided by this utility model, after being processed by the fragmentation component 1 and the grinding component 2, thoroughly crushes the lacquer tree bark, which facilitates improved extraction efficiency. It can be extracted at room temperature without heating, uses less extraction solvent, avoids damage to the components of the lacquer tree, improves extraction efficiency, expands application scenarios, and is suitable for widespread use.

[0046] 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. An apparatus for extracting flavonoids from lacquer trees, comprising a fragmentation component (1) and a grinding component (2), wherein one end of the fragmentation component (1) and the grinding component (2) are connected by a delivery pipe (11), characterized in that: The other end of the grinding assembly (2) is provided with an outlet pipe (21), and the end of the outlet pipe (21) is fixedly provided with a grinding motor (211); multiple extrusion components (23) are evenly distributed inside the grinding assembly (2).

2. The apparatus for extracting flavonoids from lacquer trees according to claim 1, characterized in that: The fragment assembly (1) includes a housing (12), with a feed port on the upper side of the housing (12) and a fragment roller (14) rotatably mounted on the bottom of the housing (12). The end of the fragment roller (14) is rotatably connected to the housing (12) through a first bearing seat (17). The end of the fragment roller (14) is fixedly connected to the output shaft of the fragment motor (13), and the fragment motor (13) is bolted to the outside of the housing (12).

3. The apparatus for extracting flavonoids from lacquer trees according to claim 2, characterized in that: Fragment baffles (15) are provided on both sides of the fragment roller (14), and multiple axially arranged grooves are evenly distributed around the fragment roller (14).

4. The apparatus for extracting flavonoids from lacquer trees according to claim 1, characterized in that: The grinding assembly (2) includes a grinding cylinder (22), both ends of which are bolted to support plates (221). A drive shaft (212) passes through the support plates (221), and the drive shaft (212) is rotatably connected to the support plates (221) through a second bearing seat (222). The end of the drive shaft (212) is fixedly connected to the output shaft of the grinding motor (211), and multiple extrusion assemblies (23) are sleeved on the drive shaft (212).

5. The apparatus for extracting flavonoids from lacquer trees according to claim 4, characterized in that: The extrusion assembly (23) includes an extrusion sleeve (231), a conical disc (232) is coaxially arranged inside the extrusion sleeve (231), and multiple extrusion wheels (234) are rotatably arranged on the outer periphery of the conical disc (232). The extrusion wheels (234) roll on the inner side of the extrusion sleeve (231); the conical disc (232) is sleeved on the outer side of the drive shaft (212).

6. The apparatus for extracting flavonoids from lacquer trees according to claim 5, characterized in that: The conical disc (232) is fitted with a mounting disc (235) on its lower side, and the extrusion wheel (234) is rotatably connected between the conical disc (232) and the mounting disc (235); a positioning sleeve (236) is coaxially provided on the lower side of the mounting disc (235).

7. The apparatus for extracting flavonoids from lacquer trees according to claim 6, characterized in that: A conical surface (2321) is provided on the upper side of the conical disk (232). Through the guiding effect of the conical surface (2321) and the centrifugal force, the lacquer tree fragments are guided between the extrusion wheel (234) and the extrusion sleeve (231).

8. The apparatus for extracting flavonoids from lacquer trees according to claim 7, characterized in that: The upper end of the extrusion sleeve (231) is provided with a feed ramp (2311), and the lower end of the extrusion sleeve (231) is provided with a discharge ramp (2312).