Device and method for preparing plant extract

Abstract

The invention discloses a plant extract preparation device and method, and relates to the technical field of plant extract preparation.The plant extract preparation device comprises a preparation tank, the preparation tank is used for containing plant extract raw materials, a material guiding opening is formed in the upper portion of the outer surface of the preparation tank, and a discharging groove is formed in the top of the preparation tank; a support frame is fixedly mounted at the bottom of the preparation tank; the crushing assembly is used for grinding and crushing plant extract raw materials, and a motor is fixedly mounted at the top of the crushing assembly; the filtering assembly is used for primarily filtering the ground and crushed raw materials; and a liquid lead-out member. According to the preparation device and method of the plant extract, plant leaves are put into the filter cartridge along the material guide opening by a worker, the material guide opening penetrates through the preparation tank and is mounted above the frame plate to be matched with the filter cartridge, dense holes are formed in the surface of the filter cartridge, and the leaves of plant raw materials are relatively complete before being treated and cannot leak out of the holes of the filter cartridge.

Description

Technical Field

[0001] The invention relates to the technical field of plant extract preparation, in particular to a device and method for preparing a plant extract. Background Art

[0002] Plant extracts refer to substances extracted or processed from plants (all or part of plants) using appropriate solvents or methods. They can be used in the pharmaceutical industry, food industry, daily chemical industry and other industries. There is a conceptual overlap between plant extracts and Chinese herbal extracts. The raw materials of plant extracts in my country mainly come from Chinese herbal medicines. Therefore, domestic plant extracts can also be called Chinese herbal extracts to some extent. They are generally included in the category of Chinese medicine products in my country's export trade statistics.

[0003] Plant extracts are gaining more and more attention from the pharmaceutical and food industries, and have become one of the fastest-growing industries in China. The market size has grown in leaps and bounds, showing huge inherent development potential. Plant extracts are made from plants. According to the needs of the final product, they undergo a physical and chemical extraction and separation process to obtain and concentrate one or more effective active ingredients in the plant. Before obtaining the plant extracts, the plants need to be crushed, and a crushing device is required; while general extraction crushing devices use horizontal or vertical stirring rods to initially separate the juice in the plant from the wood fiber. Existing extraction preparation devices do not completely crush and extract the plants, and the crushed plant residues are not easy to separate. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a plant extract preparation device and method, comprising a preparation tank, the preparation tank is used to hold plant extract raw materials, a material guide port is opened above the outer surface of the preparation tank, a material discharge trough is opened on the top of the preparation tank, and a support frame is fixedly installed at the bottom of the preparation tank; A crushing assembly, which is used for grinding and pulverizing plant extract raw materials, and a motor is fixedly installed on the top of the crushing assembly; A filter assembly, which is used for primary filtration of the raw materials after grinding and crushing; A liquid outlet member, which is used for discharging the plant extract liquid; The filter assembly is fixedly installed inside the cavity of the preparation tank, the motor is fixedly installed in the middle of the top of the preparation tank, the crushing assembly is rotatably installed inside the filter assembly through the output end of the motor, the liquid outlet piece is slidably adapted inside the discharge trough, and the liquid outlet piece is arranged at the bottom of the filter assembly; when the plant extract is extracted and processed, the staff first puts the plant raw material into the material guide port, so that the raw material slides along the material guide port into the cavity of the filter cylinder, and when the raw material is put in, the staff starts the motor so that the output end of the motor drives the crushing assembly to rotate, at this time, the spiral crushing piece preliminarily cuts the blades, and the grinding and knocking piece rotates and swings to knock the plant raw material, so as to extract the extraction solvent in the leaves.

[0005] The filter assembly includes a frame plate, and clamping rods are fixedly installed on both sides of the top of the frame plate. The clamping rods are symmetrically arranged with the frame plate as the center, and a filter cartridge is fixedly installed at the bottom of the frame plate. The staff puts the plant leaves into the filter cartridge along the material guide port, and the material guide port penetrates the preparation tank and is installed above the frame plate to match the filter cartridge. The surface of the filter cartridge is provided with dense holes. The leaves of the plant raw materials are relatively intact before being processed and will not leak out from the holes of the filter cartridge.

[0006] Preferably, the frame plate is fixedly mounted on the inner wall of the cavity of the preparation tank, the clamping rod penetrates the inner wall of the preparation tank and extends to the outside thereof, and the filter cartridge is sleeved on the outer surface of the crushing assembly.

[0007] Preferably, the liquid outlet comprises a guide plate, an inclination tube is fixedly mounted at the axis of the guide plate, a support sheet is fixedly mounted on the surface of the guide plate away from the inclination tube, a floating cylinder is fixedly mounted on the bottom of the guide plate, a connecting piece is fixedly mounted on the outer surface of the floating cylinder, and the connecting piece is distributed in a circular shape on the surface of the floating cylinder. The extruded extraction solvent and part of the residue fall on the top of the guide plate, and a friction point is arranged on the surface of the guide plate to increase the friction between the guide plate and the residue, so as to reduce the frequency of the residue sliding into the inclination tube along with the extraction solvent.

[0008] Preferably, a sliding tube runs through the interior of the inclination tube, a fitting tube is sleeved on the outer surface of the sliding tube, the fitting tube is arranged inside the cavity of the inclination tube through the sliding tube, a circular ring is slidingly adapted inside the float tube, and an expansion cavity is opened inside the float tube. The extraction solvent is collected into the expansion cavity along the gap between the inclination tube and the sliding tube. As the amount of extraction solvent collected in the expansion cavity increases, the extraction solvent is discharged into the discharge trough along the connecting piece on the circumference of the expansion cavity. Since the float tube is made of a floating material, the float tube floats upward as the water level of the liquid in the discharge trough rises, and the circular ring slides on the surface of the fitting tube, so that the bottom of the float tube is separated from the bottom of the discharge trough, so that the extraction solvent is discharged from the guide hole at the bottom of the discharge trough.

[0009] Preferably, the ring is slidably fitted on the outer surface of the sliding tube, the guide plate is slidably fitted on the inner wall of the preparation tank, and the sliding tube is fixedly installed in the middle of the bottom of the filter cartridge.

[0010] Preferably, the connecting piece includes a positioning ring, which passes through the floating tube and extends to the inside of the expansion chamber. A drainage tube is fixedly installed on the outer surface of the positioning ring, and an outer cover is sleeved on the outer surface of the drainage tube. Rings are fixedly installed on the surface of the outer cover and the drainage tube. The extraction solvent in the expansion chamber is transported to the drainage tube through the positioning ring. Since the extraction solvent carries a small amount of residue, when the residue passes through the drainage tube, the heavier residue settles downward and leaks into the outer cover from the circular hole opened on the surface of the drainage tube, so as to filter the extracted extraction solvent again and reduce the residue content in the extract.

[0011] Preferably, the crushing assembly includes a shaft, which is fixedly mounted at the output end of the motor, a connecting shaft is rotatably mounted at the bottom of the shaft, a spiral crushing piece is sleeved on the outer surface of the connecting shaft, an inner shaft is fixedly mounted at the bottom of the connecting shaft, a grinding knocking piece is rotatably mounted on the outer surface of the inner shaft, and the grinding knocking piece is adapted to the inner wall of the filter cartridge. The staff starts the motor so that the output end of the motor drives the shaft to rotate, so that the connecting shaft drives the spiral crushing piece to rotate above the cavity of the filter cartridge. The spiral crushing piece is set as a spiral structure, and the diameter near the port of the filter cartridge is smaller to prevent the raw material from being stuck between the filter cartridge and the spiral crushing piece when feeding.

[0012] Preferably, the grinding and striking member includes a card ball, which is rotatably mounted on the surface of the inner shaft, and a fixed block is fixedly mounted on the outer surface of the card ball, and a slide groove is provided on the outer surface of the fixed block. Two slide grooves are provided, and a sliding block is slidably mounted inside the two slide grooves. The inner shaft connecting shaft rotates in the filter barrel, so that the card ball rotates on the inner shaft surface, and the elastic belt drives the striking ball to swing in the filter barrel to strike the raw material. At this time, the sliding block slides in the slide groove along the swinging direction of the striking ball to protect the end of the elastic belt and prevent the striking ball from swinging too much and causing the end of the elastic belt to break.

[0013] Preferably, elastic belts are fixedly mounted on the surfaces of the sliding blocks, and knocking balls are fixedly mounted on the surfaces of the elastic belts, and the knocking balls are matched with the inner wall of the filter cartridge.

[0014] Preferably, a method for preparing a plant extract comprises the following steps: S1. Feeding and guiding: the staff puts the plant raw materials into the guide port, so that the raw materials slide along the guide port into the cavity of the filter cylinder. Since the leaves of the plant raw materials are relatively complete before processing, they will not fall from the filter cylinder; S2, crushing and grinding. When the plant material is put into the filter cartridge, the staff starts the motor so that the output end of the motor drives the crushing component to rotate. At this time, the spiral crushing blades preliminarily cut the leaves to change the size of the plant leaves so that the leaves can slide down in the filter cartridge. When the leaves slide under the filter cartridge, the rotating inner shaft drives the grinding and knocking parts to rotate and swing to knock the plant material, so as to improve the plant extraction efficiency; S3, extraction solvent extrusion, after the plant raw materials are processed by the spiral crushing pieces and the grinding and knocking pieces, the extraction solvent in the leaves is discharged along the holes set on the surface of the filter cartridge and drips onto the guide plate below the filter cartridge. After the leaves are cut and knocked, residues will be produced, and part of the residues will be squeezed out of the filter cartridge and also fall onto the guide plate; S4. The extruded extraction solvent is gathered into the inwardly inclined tube along the guide plate, and then flows into the expansion chamber along the gap between the sliding tube and the floating cylinder. Then, the extraction solvent is discharged into the discharge trough along the connecting piece arranged on the surface of the expansion chamber. Since the floating cylinder is arranged to be a floating material, when a large amount of liquid is gathered in the discharge trough, the floating cylinder slides on the surface of the fitting tube, so that the bottom of the floating cylinder is separated from the bottom of the discharge trough, and the extraction solvent is discharged from the guide hole at the bottom of the discharge trough.

[0015] The present invention provides a device and method for preparing a plant extract, which has the following beneficial effects: 1. The preparation device and method of the plant extract are as follows: a worker puts the plant leaves into the filter cartridge along the material guide port; the material guide port penetrates the preparation tank and is installed on the top of the frame plate to match the filter cartridge; dense holes are opened on the surface of the filter cartridge; the leaves of the plant raw materials are relatively complete before being processed and will not leak out from the holes of the filter cartridge.

[0016] 2. The device and method for preparing the plant extract, wherein the extraction solvent is collected into the expansion chamber along the gap between the inwardly inclined tube and the sliding tube. As the amount of the extraction solvent collected in the expansion chamber increases, the extraction solvent is discharged into the discharge trough along the connecting piece on the circumference of the expansion chamber. Since the float tube is made of a floating material, the float tube floats upward as the water level of the liquid in the discharge trough rises, and the ring slides on the surface of the fitting tube, so that the bottom of the float tube is separated from the bottom of the discharge trough, and the extraction solvent is discharged from the guide hole at the bottom of the discharge trough.

[0017] 3. The plant extract preparation device and method are as follows: the extraction solvent in the expansion chamber is transported into the drainage tube through the positioning ring. Since the extraction solvent carries a small amount of residue, when the residue passes through the drainage tube, the heavier residue settles downward and leaks into the outer cover from the circular holes opened on the surface of the drainage tube, so as to filter the extracted extraction solvent again and reduce the residue content in the extract.

[0018] 4. The device and method for preparing the plant extract, wherein a worker starts a motor so that the output end of the motor drives the shaft to rotate, so that the connecting shaft drives the spiral crushing piece to rotate above the cavity of the filter cartridge. The spiral crushing piece is arranged as a spiral structure, and the diameter near the port of the filter cartridge is smaller to avoid the raw material being stuck between the filter cartridge and the spiral crushing piece when feeding.

[0019] 5. The device and method for preparing the plant extract rotates in the filter cartridge by rotating the inner shaft connecting shaft, so that the card ball rotates on the inner shaft surface, and the elastic belt drives the knocking ball to swing in the filter cartridge to knock the raw material. At this time, the sliding block slides in the slide groove along the swinging direction of the knocking ball to protect the end of the elastic belt and prevent the end of the elastic belt from breaking due to excessive swinging force of the knocking ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the external structure of a plant extract preparation device of the present invention; Figure 2 This is a schematic diagram of the internal structure of the tank section prepared by the present invention; Figure 3 This is a schematic diagram of the structure of the filter assembly of the present invention; Figure 4 This is a schematic diagram of the structure of the crushing assembly of the present invention; Figure 5 This is an enlarged structural diagram of the grinding striking piece of the present invention; Figure 6 This is a schematic diagram of the structure of the grinding striking piece of the present invention; Figure 7 This is a schematic diagram of the structure of the liquid outlet member of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the liquid outlet member of the present invention; Fig. 9 It is a schematic diagram of the structure of the connecting piece of the present invention; Fig.10 The present invention is a schematic diagram of a process for preparing a plant extract; In the figure: 1. motor; 2. preparation tank; 3. support frame; 4. discharge chute; 5. guide port; 6. crushing assembly; 61. shaft; 62. connecting shaft; 63. inner shaft; 64. grinding and knocking piece; 641. card ball; 642. fixed block; 643. sliding block; 644. elastic belt; 645. slide groove; 646. knocking ball; 65. spiral crushing piece; 7. filter assembly; 71. card rod; 72. frame plate; 73. filter cartridge; 8. liquid outlet; 81. guide plate; 82. fitting tube; 83. connecting piece; 831. positioning ring; 832. drainage tube; 833. outer cover; 834. sleeve; 84. floating cylinder; 85. inclination tube; 86. support plate; 87. sliding tube; 88. ring; 89. expansion chamber. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0022] The first embodiment, as Figures 1 to 6 As shown, the present invention provides a technical solution: a plant extract preparation device and method, comprising a preparation tank 2, the preparation tank 2 is used to hold plant extract raw materials, a material guide port 5 is opened above the outer surface of the preparation tank 2, a material discharge trough 4 is opened on the top of the preparation tank 2, and a support frame 3 is fixedly installed at the bottom of the preparation tank 2; A crushing assembly 6, which is used for grinding and crushing plant extract raw materials, and a motor 1 is fixedly installed on the top of the crushing assembly 6; A filter assembly 7, which is used for primary filtration of the raw materials after grinding and crushing; A liquid outlet 8, which is used for discharging the plant extract liquid; The filter assembly 7 is fixedly installed inside the cavity of the preparation tank 2, the motor 1 is fixedly installed in the middle of the top of the preparation tank 2, the crushing assembly 6 is rotatably installed inside the filter assembly 7 through the output end of the motor 1, the liquid outlet 8 is slidably adapted inside the discharge trough 4, and the liquid outlet 8 is arranged at the bottom of the filter assembly 7; when the plant extract is extracted and processed, the staff first puts the plant raw material into the material guide port 5, so that the raw material slides along the material guide port 5 into the cavity of the filter cylinder 73. When the raw material is put in, the staff starts the motor 1 so that the output end of the motor 1 drives the crushing assembly 6 to rotate. At this time, the spiral crushing piece 65 performs a preliminary cut on the leaves, and the grinding and knocking piece 64 rotates and swings to knock on the plant raw material to facilitate the extraction of the extraction solvent in the leaves.

[0023] The filter assembly 7 includes a frame plate 72, and clamping rods 71 ​​are fixedly installed on both sides of the top of the frame plate 72. The clamping rods 71 ​​are symmetrically arranged with the frame plate 72 as the center, and a filter cartridge 73 is fixedly installed at the bottom of the frame plate 72. The staff puts the plant leaves into the filter cartridge 73 along the material guide port 5. The material guide port 5 penetrates the preparation tank 2 and is installed above the frame plate 72 to match the filter cartridge 73. The surface of the filter cartridge 73 is provided with dense holes. The leaves of the plant raw materials are relatively intact before being processed and will not leak out from the holes of the filter cartridge 73.

[0024] The frame plate 72 is fixedly mounted on the inner wall of the cavity of the preparation tank 2 , the clamping rod 71 penetrates the inner wall of the preparation tank 2 and extends to the outside thereof, and the filter cartridge 73 is sleeved on the outer surface of the crushing assembly 6 .

[0025] The crushing assembly 6 includes a shaft 61, which is fixedly mounted at the output end of the motor 1, a connecting shaft 62 is rotatably mounted at the bottom of the shaft 61, a spiral crushing piece 65 is sleeved on the outer surface of the connecting shaft 62, an inner shaft 63 is fixedly mounted at the bottom of the connecting shaft 62, a grinding knocking piece 64 is rotatably mounted on the outer surface of the inner shaft 63, and the grinding knocking piece 64 is adapted to the inner wall of the filter barrel 73. The staff starts the motor 1 so that the output end of the motor 1 drives the shaft 61 to rotate, so that the connecting shaft 62 drives the spiral crushing piece 65 to rotate above the cavity of the filter barrel 73, and the spiral crushing piece 65 is set as a spiral structure, and the diameter near the port of the filter barrel 73 is smaller to prevent the raw material from being stuck between the filter barrel 73 and the spiral crushing piece 65 when feeding.

[0026] The grinding knocking member 64 includes a card ball 641, which is rotatably mounted on the surface of the inner shaft 63, and a fixed block 642 is fixedly mounted on the outer surface of the card ball 641. A slide groove 645 is provided on the outer surface of the fixed block 642. There are two slide grooves 645, and a sliding block 643 is slidably mounted inside the two slide grooves 645. The inner shaft 63 connects the shaft 62 and rotates in the filter cartridge 73, so that the card ball 641 rotates on the surface of the inner shaft 63, and the elastic belt 644 drives the knocking ball 646 to swing in the filter cartridge 73 to knock the raw material. At this time, the sliding block 643 slides in the slide groove 645 along the swinging direction of the knocking ball 646 to protect the end of the elastic belt 644 and prevent the end of the elastic belt 644 from breaking due to excessive swinging force of the knocking ball 646.

[0027] Elastic bands 644 are fixedly mounted on the surface of the sliding block 643 , and striking balls 646 are fixedly mounted on the surface of the elastic bands 644 . The striking balls 646 are matched with the inner wall of the filter cartridge 73 .

[0028] The second embodiment is based on the first embodiment. Figures 7 to 9 As shown, the liquid outlet 8 comprises a guide plate 81, an inclination tube 85 is fixedly installed at the axis of the guide plate 81, a support sheet 86 is fixedly installed on the surface of the guide plate 81 away from the inclination tube 85, a float 84 is fixedly installed at the bottom of the guide plate 81, and a connecting piece 83 is fixedly installed on the outer surface of the float 84. The connecting piece 83 is circumferentially distributed on the surface of the float 84. The extruded extraction solvent and part of the residue fall on the top of the guide plate 81, and the surface of the guide plate 81 is provided with friction points to increase the friction between the guide plate 81 and the residue, so as to reduce the frequency of the residue sliding into the inclination tube 85 along with the extraction solvent.

[0029] The interior of the inclination tube 85 is penetrated by a slide tube 87, and the outer surface of the slide tube 87 is sleeved with a fitting tube 82, and the fitting tube 82 is arranged inside the cavity of the inclination tube 85 through the slide tube 87. The interior of the float cylinder 84 is slidably adapted with a ring 88, and an expansion cavity 89 is opened inside the float cylinder 84. The extraction solvent is collected into the expansion cavity 89 along the gap between the inclination tube 85 and the slide tube 87. As the amount of the extraction solvent collected in the expansion cavity 89 increases, the extraction solvent is discharged into the discharge trough 4 along the connecting piece 83 on the side of the expansion cavity 89. Since the float cylinder 84 is set to a floating material, the float cylinder 84 floats upward as the liquid water level in the discharge trough 4 rises, and the ring 88 slides on the surface of the fitting tube 82, so that the bottom of the float cylinder 84 is separated from the bottom of the discharge trough 4, so that the extraction solvent is discharged from the guide hole at the bottom of the discharge trough 4.

[0030] The circular ring 88 is slidably fitted on the outer surface of the sliding tube 87 , the guide plate 81 is slidably fitted on the inner wall of the preparation tank 2 , and the sliding tube 87 is fixedly installed in the middle of the bottom of the filter cartridge 73 .

[0031] The connecting piece 83 includes a positioning ring 831, which passes through the floating tube 84 and extends to the inside of the expansion chamber 89. A drainage tube 832 is fixedly installed on the outer surface of the positioning ring 831, and an outer cover 833 is sleeved on the outer surface of the drainage tube 832. A sleeve ring 834 is fixedly installed on the surface of the outer cover 833 and the drainage tube 832. The extraction solvent in the expansion chamber 89 is transported to the drainage tube 832 through the positioning ring 831. Since the extraction solvent carries a small amount of residue, when the residue passes through the drainage tube 832, the heavier residue settles downward and leaks from the circular hole opened on the surface of the drainage tube 832 into the outer cover 833, so as to filter the extracted extraction solvent again and reduce the residue content in the extract.

[0032] The third embodiment is based on the first and second embodiments. Figures 1 to 10 As shown, a method for preparing a plant extract comprises the following steps: S1, feeding and guiding, the staff puts the plant raw material into the guide port 5, so that the raw material slides along the guide port 5 into the cavity of the filter cylinder 73. Since the leaves of the plant raw material are relatively complete before processing, they will not fall from the filter cylinder 73; S2, crushing and grinding. When the plant material is put into the filter cartridge 73, the staff starts the motor 1 so that the output end of the motor 1 drives the crushing assembly 6 to rotate. At this time, the spiral crushing piece 65 performs preliminary cutting on the leaves to change the size of the plant leaves so that the leaves can slide down in the filter cartridge 73. When the leaves slide under the filter cartridge 73, the rotating inner shaft 63 drives the grinding and knocking piece 64 to rotate and swing to knock the plant material, so as to improve the plant extraction efficiency; S3, extraction solvent extrusion, after the plant raw material is processed by the spiral crushing piece 65 and the grinding and knocking piece 64, the extraction solvent in the leaves is discharged along the holes set on the surface of the filter cylinder 73, and drips onto the guide plate 81 below the filter cylinder 73. After the leaves are cut and knocked, residues will be generated, and part of the residues will be squeezed out of the filter cylinder 73 and also fall onto the guide plate 81; S4. The extruded extraction solvent is collected into the inwardly inclined tube 85 along the guide plate 81, and then flows into the expansion chamber 89 along the gap between the slide tube 87 and the float cylinder 84. Then, the extraction solvent is discharged into the discharge trough 4 along the connecting piece 83 arranged on the surface of the expansion chamber 89. Since the float cylinder 84 is arranged to be a floating material, when a large amount of liquid is collected in the discharge trough 4, the float cylinder 84 slides on the surface of the fitting tube 82, so that the bottom of the float cylinder 84 is separated from the bottom of the discharge trough 4, so that the extraction solvent is discharged from the guide hole at the bottom of the discharge trough 4.

[0033] When in use, when extracting and processing the plant extract, the staff first puts the plant raw material into the material guide port 5, so that the raw material slides along the material guide port 5 into the cavity of the filter cylinder 73. When the raw material is put in, the staff starts the motor 1 so that the output end of the motor 1 drives the crushing component 6 to rotate. At this time, the spiral crushing piece 65 performs a preliminary cutting of the blades, and the grinding and knocking piece 64 rotates and swings to knock the plant raw material, so as to extract the extraction solvent in the leaves.

[0034] The staff puts the plant leaves into the filter cartridge 73 along the material guide port 5. The material guide port 5 passes through the preparation tank 2 and is installed above the frame 72 to match the filter cartridge 73. The surface of the filter cartridge 73 is provided with dense holes. The leaves of the plant raw materials are relatively intact before being processed and will not leak out from the holes of the filter cartridge 73.

[0035] The extruded extraction solvent and part of the residue fall onto the guide plate 81 . The surface of the guide plate 81 is provided with friction points to increase the friction between the guide plate 81 and the residue, so as to reduce the frequency of the residue sliding into the inward tilting tube 85 along with the extraction solvent.

[0036] The extraction solvent is collected into the expansion chamber 89 along the gap between the inwardly inclined tube 85 and the sliding tube 87. As the amount of the extraction solvent collected in the expansion chamber 89 increases, the extraction solvent is discharged into the discharge trough 4 along the connecting piece 83 on the side of the expansion chamber 89. Since the float 84 is made of a floating material, the float 84 floats upward as the water level of the liquid in the discharge trough 4 rises, and the ring 88 slides on the surface of the fitting tube 82, so that the bottom of the float 84 is separated from the bottom of the discharge trough 4, so that the extraction solvent is discharged from the guide hole at the bottom of the discharge trough 4.

[0037] The extraction solvent in the expansion chamber 89 is transported to the drainage tube 832 through the positioning ring 831. Since the extraction solvent carries a small amount of residue, when the residue passes through the drainage tube 832, the heavier residue settles downward and leaks into the outer cover 833 from the circular holes opened on the surface of the drainage tube 832, so as to filter the extracted extraction solvent again and reduce the residue content in the extract.

[0038] The staff starts the motor 1 so that the output end of the motor 1 drives the shaft 61 to rotate, so that the connecting shaft 62 drives the spiral crushing piece 65 to rotate above the cavity of the filter barrel 73. The spiral crushing piece 65 is set to a spiral structure, and the diameter near the port of the filter barrel 73 is smaller to avoid the raw material from being stuck between the filter barrel 73 and the spiral crushing piece 65 when feeding.

[0039] The inner shaft 63 connects the shaft 62 to rotate inside the filter cartridge 73, causing the blocking ball 641 to rotate on the surface of the inner shaft 63, and causing the elastic belt 644 to drive the knocking ball 646 to swing inside the filter cartridge 73 to knock on the raw material. At this time, the sliding block 643 slides in the slide groove 645 along the swinging direction of the knocking ball 646 to protect the end of the elastic belt 644 and prevent the knocking ball 646 from swinging too hard and causing the end of the elastic belt 644 to break.

[0040] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A device for preparing a plant extract, characterized in that: include: A preparation tank (2), the preparation tank (2) being used for containing plant extract raw materials, a material guide port (5) being provided above the outer surface of the preparation tank (2), a material discharge trough (4) being provided at the top of the preparation tank (2), and a support frame (3) being fixedly installed at the bottom of the preparation tank (2); A crushing assembly (6), the crushing assembly (6) is used for grinding and pulverizing plant extract raw materials, and a motor (1) is fixedly mounted on the top of the crushing assembly (6); A filter assembly (7), the filter assembly (7) being used for primary filtering of the raw materials after grinding and pulverization; A liquid outlet (8), the liquid outlet (8) being used for discharging the plant extract liquid; The filter assembly (7) is fixedly mounted inside the cavity of the preparation tank (2), the motor (1) is fixedly mounted at the middle of the top of the preparation tank (2), the crushing assembly (6) is rotatably mounted inside the filter assembly (7) via the output end of the motor (1), the liquid outlet (8) is slidably fitted inside the discharge trough (4), and the liquid outlet (8) is arranged at the bottom of the filter assembly (7); The filter assembly (7) comprises a frame plate (72), clamping rods (71) are fixedly mounted on both sides of the top of the frame plate (72), the clamping rods (71) are symmetrically arranged with the frame plate (72) as the center, and a filter cartridge (73) is fixedly mounted on the bottom of the frame plate (72).

2. The device for preparing a plant extract according to claim 1, characterized in that: The frame plate (72) is fixedly mounted on the inner wall of the cavity of the preparation tank (2), the clamping rod (71) penetrates the inner wall of the preparation tank (2) and extends to the outside thereof, and the filter cartridge (73) is sleeved on the outer surface of the crushing assembly (6).

3. The device for preparing a plant extract according to claim 1, characterized in that: The liquid outlet member (8) comprises a guide plate (81), an inclination tube (85) is fixedly mounted at the axis of the guide plate (81), a support sheet (86) is fixedly mounted on the surface of the guide plate (81) on a side away from the inclination tube (85), a float cylinder (84) is fixedly mounted on the bottom of the guide plate (81), a connecting member (83) is fixedly mounted on the outer surface of the float cylinder (84), and the connecting member (83) is distributed in a circular shape on the surface of the float cylinder (84).

4. The device for preparing a plant extract according to claim 3, characterized in that: The interior of the inclination tube (85) is penetrated by a sliding tube (87), the outer surface of the sliding tube (87) is sleeved with a fitting tube (82), and the fitting tube (82) is arranged inside the cavity of the inclination tube (85) through the sliding tube (87). The interior of the floating cylinder (84) is slidably adapted with a ring (88), and an expansion cavity (89) is opened inside the floating cylinder (84).

5. The device for preparing a plant extract according to claim 4, characterized in that: The circular ring (88) is slidably fitted on the outer surface of the sliding tube (87), the guide plate (81) is slidably fitted on the inner wall of the preparation tank (2), and the sliding tube (87) is fixedly mounted at the middle of the bottom of the filter cartridge (73).

6. The device for preparing a plant extract according to claim 5, characterized in that: The connecting piece (83) comprises a positioning ring (831), the positioning ring (831) passes through the floating tube (84) and extends to the inside of the expansion chamber (89), a drainage tube (832) is fixedly mounted on the outer surface of the positioning ring (831), an outer cover (833) is sleeved on the outer surface of the drainage tube (832), and collars (834) are fixedly mounted on the surfaces of both the outer cover (833) and the drainage tube (832).

7. The device for preparing a plant extract according to claim 1, characterized in that: The crushing assembly (6) comprises a shaft (61), the shaft (61) being fixedly mounted on the output end of the motor (1), a connecting shaft (62) being rotatably mounted on the bottom of the shaft (61), a spiral crushing piece (65) being sleeved on the outer surface of the connecting shaft (62), an inner shaft (63) being fixedly mounted on the bottom of the connecting shaft (62), a grinding knocking piece (64) being rotatably mounted on the outer surface of the inner shaft (63), and the grinding knocking piece (64) being adapted to fit the inner wall of the filter cartridge (73).

8. The device for preparing a plant extract according to claim 7, characterized in that: The grinding striking member (64) comprises a locking ball (641) which is rotatably mounted on the surface of the inner shaft (63); a fixing block (642) is fixedly mounted on the outer surface of the locking ball (641); a sliding groove (645) is provided on the outer surface of the fixing block (642); two sliding grooves (645) are provided, and a sliding block (643) is slidably mounted inside each of the two sliding grooves (645).

9. The device for preparing a plant extract according to claim 8, characterized in that: The surfaces of the sliding blocks (643) are all fixedly mounted with elastic belts (644), and the surfaces of the elastic belts (644) are all fixedly mounted with knocking balls (646), and the knocking balls (646) are adapted to the inner wall of the filter cartridge (73).

10. A method for preparing a plant extract, characterized in that: It consists of the following steps: S1, feeding and guiding, the staff feeds the plant raw material into the material guide port (5), so that the raw material slides along the material guide port (5) into the cavity of the filter cartridge (73), and because the leaves of the plant raw material are relatively intact before processing, they will not fall out of the filter cartridge (73); S2, crushing and grinding. When the plant material is put into the filter cartridge (73), the staff starts the motor (1) so that the output end of the motor (1) drives the crushing assembly (6) to rotate. At this time, the spiral crushing blade (65) performs preliminary cutting on the leaves to change the size of the plant leaves so that the leaves can slide down in the filter cartridge (73). When the leaves slide under the filter cartridge (73), the rotating inner shaft (63) drives the grinding and knocking member (64) to rotate and swing to knock the plant material, so as to improve the plant extraction efficiency. S3, extracting solvent extrusion, after the plant raw material is processed by the spiral crushing piece (65) and the grinding and knocking piece (64), the extracting solvent in the leaves is discharged along the holes provided on the surface of the filter cartridge (73) and drips onto the guide plate (81) below the filter cartridge (73), and residues are generated after the leaves are cut and knocked, and part of the residues are squeezed out of the filter cartridge (73) and also fall onto the guide plate (81); S4. The extruded extraction solvent is collected along the guide plate (81) into the inwardly inclined tube (85), and the extraction solvent is collected into the expansion chamber (89) along the gap between the sliding tube (87) and the floating cylinder (84), and then the extraction solvent is discharged into the discharge trough (4) along the connecting piece (83) arranged on the surface of the expansion chamber (89). Since the floating cylinder (84) is arranged to be a floating material, when a large amount of liquid is collected in the discharge trough (4), the floating cylinder (84) slides on the surface of the fitting tube (82), so that the bottom of the floating cylinder (84) is separated from the bottom of the discharge trough (4), so that the extraction solvent is discharged from the guide hole at the bottom of the discharge trough (4).

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