CN111349519B

CN111349519B - Extraction process of buckwheat plant essential oil

Info

Publication number: CN111349519B
Application number: CN202010170355.0A
Authority: CN
Inventors: 谭宇航; 胡峰
Original assignee: Shenzhen Yizanquan Cosmetics Co ltd
Current assignee: Shenzhen yizanquan Biotechnology Co.,Ltd.
Priority date: 2020-03-12
Filing date: 2020-03-12
Publication date: 2021-03-12
Anticipated expiration: 2040-03-12
Also published as: CN111349519A

Abstract

The invention provides a buckwheat plant essential oil extraction process, which is an operation completed by matching a tripod, a distillation flask, a penetration hole, a through-out pipe, a three-way frame group, a chopping device, a fixing frame, a storage frame and a valve connecting pipe.

Description

Extraction process of buckwheat plant essential oil

Technical Field

The invention relates to the technical field of essential oil extraction, and particularly relates to a buckwheat plant essential oil extraction process.

Background

Buckwheat is a dicotyledonous plant belonging to the genus Fagopyrum of the family Polygonaceae, buckwheat grains, roots, stems, leaves and flowers are rich in flavonoids, and researches show that the content of the flavonoids in buckwheat leaves is higher than that in other tissues of buckwheat. The main active ingredients of the flavonoid substances in the buckwheat leaves are rutin and quercetin, and the rutin and the quercetin have physiological activities in multiple aspects proved by modern medicine, and can be used for preventing and treating hepatitis and arthritis, resisting tumors, relieving asthma, resisting oxidation activity and reducing blood fat and blood sugar.

The essential oil is extracted from the buckwheat leaves by adopting a distillation method, when the chopped buckwheat leaves are placed in a distillation flask, because the orifice of the distillation flask is smaller and the chopped buckwheat leaves are also more finely crushed, part of the buckwheat leaves can be scattered during placement, personnel can cut the buckwheat leaves to be larger due to the condition so as to be placed in the distillation flask, but the distillation effect is delayed due to the larger buckwheat leaves.

Disclosure of Invention

In order to solve the problems, the invention provides a buckwheat plant essential oil extraction process, which can solve the problems that when chopped buckwheat leaves are placed in a distillation flask, because the opening of the distillation flask is smaller and the chopped buckwheat leaves are also more finely crushed, part of the buckwheat leaves are scattered when the buckwheat leaves are placed, and personnel can cut the buckwheat leaves larger due to the situation so as to be conveniently placed in the distillation flask, but the larger buckwheat leaves usually delay the distillation effect and the like.

In order to achieve the purpose, the invention adopts the following technical scheme that a distillation device is used in the extraction process of buckwheat plant essential oil, the distillation device comprises a tripod, a distillation flask, a penetration hole, a through pipe, a three-way frame group, a chopping device, a fixing frame, a storage frame and a valve connecting pipe, and the distillation device is adopted to extract the essential oil from buckwheat leaves as follows:

s1, preprocessing: washing buckwheat leaves with water, placing the buckwheat leaves into a frame body, and filling distilled water into a storage frame;

s2, shredding: the driving cylinder drives the chopping knife to descend so as to chop the buckwheat leaves, the pressing group descends in a delayed manner under the extrusion of the delay block so as to tap the chopped buckwheat leaves, the buckwheat leaves are more finely chopped by repeated chopping of the chopping knife, and the driving cylinder drives the chopping knife and the pressing group to synchronously ascend until the pressing group enters the chopping knife so as to scrape the residue leaves remained in the chopping knife, and the gas in the ventilation cavity conveys the chopped buckwheat leaves downwards into the semi-circular frame;

s3, conveying: pulling the shielding frame upwards to close the lower end of the material conveying pipe group, and opening the valve connecting pipe to enable distilled water to flush the buckwheat leaves in the semicircular frame into the distillation flask;

s4, distillation and extraction: heating the outside of the distillation flask, extracting the essential oil and the flower water by a distillation method, extracting the essential oil by an extraction mode, and sealing and storing the essential oil.

The retort has been placed on the tripod, and the upper left end of retort has been seted up and has been worn the hole, wears to be equipped with the eduction tube in the hole, and the left end and the tee bend frame group right-hand member of eduction tube are connected, and the left end of tee bend frame group passes through the valve connecting pipe to be connected with the storage frame, stores the frame and installs the left end at the mount, and the comminution device is installed to the right-hand member of mount, and the lower extreme of mount is installed on the tripod.

The lead to and go out the pipe and include conveying pipe, screwed pipe, sliding tray, carriage and rubber buffer, the screwed pipe is installed to the left end outer wall of screwed pipe, the sliding tray has been seted up to the right-hand member upside of conveying pipe, be connected with the carriage through sliding fit's mode in the sliding tray, the rubber buffer is installed to the right-hand member of carriage.

The tee bend frame group include semicircle frame, arc wall, shelter from frame and magnet piece, the arc wall has been seted up on the upper end right side of semicircle frame, be connected through sliding fit's mode and shelter from the frame in the arc wall, the magnet piece is installed to the right-hand member that shelters from the frame.

During specific work, before conveying, the shielding frame is pulled upwards to lock the position of the shielding frame through the suction force of the magnet block and the arc-shaped iron block, the shielding frame after displacement is closed at the opening at the upper end of the semicircular frame, the situation that distilled water splashes into the conveying pipe group when impacting buckwheat leaves is avoided, the valve connecting pipe is opened to enable the distilled water to flush the buckwheat leaves in the semicircular frame into the distillation flask until the distilled water is injected into a proper amount, and then the sliding frame is pulled leftwards to enable the rubber plug to extrude the right end outlet of the threaded pipe.

The comminution device include framework group, sealed lid, ventilate the chamber, the air pump, the pipeline group, the initiative cylinder, the chopper, press down the group, defeated material nest of tubes and connect the through-hole, framework group installs on the mount, the upper end embedding of framework group has sealed lid, sealed covering has seted up the chamber of ventilating, the left end and the air pump intercommunication in chamber of ventilating, the air pump is installed on sealed covering, the lower extreme in chamber of ventilating evenly is equipped with the pipeline group, the lower extreme of sealed lid is connected with the chopper through the initiative cylinder, the upper end of chopper is equipped with presses down the group, the lower extreme of framework group is connected with the upper end of semicircle frame through defeated material nest of tubes, the even intercommunication of lower extreme in chamber of ventilating.

The framework group comprise a framework body, a delay block, a built-in spring, a communication groove, a sealing plate, a connecting rope and a working spring, the left end of the inner wall of the framework body is in sliding fit with the delay block, the built-in spring is connected between the delay block and the inner wall of the framework body, the communication groove is formed in the lower end of the framework body, the sealing plate is arranged in the communication groove, the right end of the sealing plate is connected with a pressing group through the connecting rope, the working spring is connected between the sealing plate and the communication groove, and the right end of the delay block is of a triangular structure.

When the buckwheat cutting device works, buckwheat leaves are placed into the frame body, the cutting knife is driven to descend through the driving cylinder so as to cut the buckwheat leaves, the pressing group descends synchronously and is blocked to delay descending after encountering a delay block, after the cutting knife cuts the buckwheat leaves, the pressing group delaying descending is accelerated to descend under the elasticity of the built-in spring, so that the quick descending simulates the effect of small-pressure stamping, the driving cylinder drives the cutting knife and presses the group to ascend synchronously until the pressing group enters the cutting knife, the pressing group scrapes the residue leaves remained on the inner wall of the cutting knife, the pressing group drives the connecting rope to pull upwards when the stress of the pressing group rises, so that the sealing plate is driven to move rightwards, at the moment, gas is sprayed out of the pipeline group through the air pump, and the gas is blown downwards into the semicircular frame.

Preferably, the right end of the semicircular frame is provided with an annular thread groove, the annular thread groove and the circular hole of the semicircular frame are coaxially arranged, and the annular thread groove and the threaded pipe are in threaded fit connection.

Preferably, the pipeline group include two arcs and dilatation pipe, two arcs are connected through round pin axle and both ends about the switch-on hole, form the chamber of ventilating between two arcs, connect the lower extreme of through-hole to be connected with the dilatation union coupling through sliding fit's mode, and the internal diameter of dilatation pipe is greater than the diameter in the chamber of ventilating.

Preferably, the chopping knife is of a grid structure, and the knife tip of the chopping knife faces downwards.

Preferably, press the group including pressing block, connecting plate and operating spring, the lower extreme of connecting plate is evenly installed and is pressed the briquetting, is connected with operating spring between connecting plate and the shredding knife, evenly is equipped with protruding piece according to the lower terminal surface of briquetting, is equipped with the ventilation hole according to the middle part of briquetting.

Preferably, the lower end of the pressing block is positioned inside the shredding knife with the grid-type structure.

Preferably, the conveying pipeline group include conveying pipeline, exhaust hole, prevent stifled group and arc iron plate, the intercommunication has the conveying pipeline between framework and the semicircle frame, has evenly seted up the exhaust hole on the conveying pipeline outer wall, all is equipped with one in every exhaust hole and prevents stifled group, installs arc iron plate on the conveying pipeline right-hand member downside outer wall.

Preferably, prevent stifled group including ejecting dish, link and prevent stifled spring, the link is connected with the conveying pipeline through sliding fit's mode, even has between ejecting dish and the conveying pipeline and prevents stifled spring, ejecting dish is installed to the inner of link, ejecting dish is located the exhaust hole.

The invention has the beneficial effects that:

according to the buckwheat plant essential oil extraction process, buckwheat leaves are cut into fine-crushed leaves in a frame mechanical chopping mode, the fine-crushed leaves can accelerate later-stage distillation, and the leaves are conveyed into a distillation flask integrally in a mode of wind blowing first and then water flushing, so that personnel do not need to entangle the size of the leaves, and the overall efficiency is improved;

secondly, the buckwheat plant essential oil extraction process provided by the invention is characterized in that the cutting device provided by the invention adopts a repeated integrated design concept of cutting and fracturing to finely cut buckwheat leaves, the condition that the buckwheat leaves are adhered in a frame is reduced by small wind power in the cutting process, and the wind power is increased by expansion after cutting, so that the cut buckwheat leaves are sent to the semicircular frame;

thirdly, according to the buckwheat plant essential oil extraction process provided by the invention, the three-way frame group plays a role in connection, so that the normal conveying function of buckwheat leaves and distilled water is ensured, and the distilled water can smoothly wash away the buckwheat leaves.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a process flow diagram of buckwheat essential oil extraction;

FIG. 2 is an overall cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view of the shredding device of the present invention;

FIG. 4 is a cross-sectional view of an outlet tube of the present invention;

FIG. 5 is a cross-sectional view of the three way frame set of the present invention;

FIG. 6 is an enlarged view of the X-direction detail of FIG. 3 in accordance with the present invention;

fig. 7 is a partial enlarged view of the invention in the Y direction of fig. 3.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

As shown in fig. 1 to 7, a buckwheat plant essential oil extraction process, which uses a distillation apparatus, the distillation apparatus includes a tripod 1, a distillation flask 2, a penetration hole 3, a discharge pipe 4, a three-way frame group 5, a chopping apparatus 6, a fixing frame 7, a storage frame 8, and a valve connecting pipe 9, the distillation apparatus is used for extracting essential oil from buckwheat leaves as follows:

s1, preprocessing: washing buckwheat leaves with water, placing the washed buckwheat leaves into the frame body 611, and filling the storage frame 8 with distilled water;

s2, shredding: the driving air cylinder 66 drives the chopping knife 67 to descend so as to chop the buckwheat leaves, the pressing group 68 descends in a delayed manner under the extrusion of the delay block 612 so as to compact the chopped buckwheat leaves, the chopping knife 67 repeatedly chops the buckwheat leaves so as to finely crush the buckwheat leaves, the driving air cylinder 66 drives the chopping knife 67 and the pressing group 68 to synchronously ascend until the pressing group 68 enters the chopping knife 67 so as to scrape off the residue leaves in the chopping knife 67, and the air in the ventilation cavity 63 conveys the chopped buckwheat leaves downwards into the semicircular frame 51;

s3, conveying: pulling the shielding frame 53 upwards to close the lower end of the material conveying pipe group 69, and opening the valve connecting pipe 9 to make the distilled water flush the buckwheat leaves in the semicircular frame 51 into the distillation flask 2;

s4, distillation and extraction: heating the outside of the distillation flask 2, extracting the essential oil and the flower water by a distillation method, extracting the essential oil by an extraction mode, and storing the essential oil in a sealed mode.

Placed retort 2 on tripod 1, retort 2's upper left end has been seted up and has been worn hole 3, is equipped with logical exit tube 4 in wearing hole 3, and the left end that leads to exit tube 4 is organized 5 right-hand members with the tee bend frame and is connected, and the left end that the tee bend frame was organized 5 passes through valve connecting pipe 9 and is connected with storage frame 8, stores frame 8 and installs the left end at mount 7, and comminution device 6 is installed to mount 7's right-hand member, and mount 7's lower extreme is installed on tripod 1.

Lead to out pipe 4 include conveying pipe 41, screwed pipe 42, sliding tray 43, carriage 44 and rubber buffer 45, screwed pipe 42 is installed to the left end outer wall of screwed pipe 42, sliding tray 43 has been seted up to the right-hand member upside of conveying pipe 41, be connected with carriage 44 through sliding fit's mode in the sliding tray 43, rubber buffer 45 is installed to the right-hand member of carriage 44.

Tee bend frame group 5 include semicircle frame 51, arc 52, shelter from frame 53 and magnet piece 54, semicircle frame 51's upper end right side has seted up arc 52, is connected with sheltering from frame 53 through sliding fit's mode in the arc 52, shelters from the right-hand member of frame 53 and installs magnet piece 54.

During specific work, before conveying, the shielding frame 53 is pulled upwards to lock the position of the shielding frame 53 through the suction force of the magnet block 54 and the arc-shaped iron block 694, the upper opening of the semi-circular frame 51 is closed through the displaced shielding frame 53, the buckwheat leaves are prevented from being splashed into the conveying pipe group 69 when being impacted by distilled water, the valve connecting pipe 9 is opened, the distilled water is enabled to flush the buckwheat leaves in the semi-circular frame 51 into the distillation flask 2 until the distilled water is injected to a proper amount, and then the sliding frame 44 is pulled leftwards to enable the rubber plug 45 to be squeezed into the right end outlet of the threaded pipe 42.

The chopping device 6 comprises a frame body group 61, a sealing cover 62, a ventilation cavity 63, an air pump 64, a pipeline group 65, an active air cylinder 66, a chopping knife 67, a pressing group 68, a material conveying pipeline group 69 and a through hole 70, wherein the frame body group 61 is installed on the fixed frame 7, the sealing cover 62 is embedded in the upper end of the frame body group 61, the ventilation cavity 63 is formed in the sealing cover 62, the left end of the ventilation cavity 63 is communicated with the air pump 64, the air pump 64 is installed on the sealing cover 62, the pipeline group 65 is uniformly arranged at the lower end of the ventilation cavity 63, the lower end of the sealing cover 62 is connected with the chopping knife 67 through the active air cylinder 66, the pressing group 68 is arranged at the upper end of the chopping knife 67, the lower end of the frame body group 61 is connected with the upper end of the semicircular frame 51 through.

The frame body group 61 comprises a frame body 611, a delay block 612, an internal spring 613, a communication groove 614, a sealing plate 615, a connecting rope 616 and a working spring 617, the left end of the inner wall of the frame body 611 is in sliding fit with the delay block 612, the internal spring 613 is connected between the delay block 612 and the inner wall of the frame body 611, the communication groove 614 is formed in the lower end of the frame body 611, the sealing plate 615 is arranged in the communication groove 614, the right end of the sealing plate 615 is connected with the pressing group 68 through the connecting rope 616, the working spring 617 is connected between the sealing plate 615 and the communication groove 614, and the right end of the delay block 612 is in a triangular structure.

When the buckwheat cutting machine works specifically, buckwheat leaves are placed in the frame body 611, the driving air cylinder 66 drives the cutting knife 67 to descend so as to cut the buckwheat leaves, the pressing group 68 descends synchronously and is delayed to descend when being blocked after encountering the delay block 612, when the buckwheat leaves are cut by the chopper 67, the pressing group 68 which is delayed to descend is accelerated to descend by the elastic force of the built-in spring 613, therefore, the rapid drop simulates the action of small-pressure stamping, the driving air cylinder 66 drives the chopping knife 67 and the pressing group 68 to synchronously rise until the pressing group 68 enters the chopping knife 67, the pressing group 68 scrapes off the residue leaves remained on the inner wall of the chopping knife 67, the pressing group 68 drives the connecting rope 616 to pull upwards when being stressed and rises, the sealing plate 615 is driven to move right, and at this time, the air is sprayed out from the pipe set 65 by the air pump, so that the air is blown downwards to blow the buckwheat leaves downwards into the semicircular frame 51.

Semicircular frame 51's right-hand member be equipped with annular thread groove, and annular thread groove and semicircular frame 51's round hole be coaxial arrangement, be connected for screw-thread fit between annular thread groove and the screwed pipe 42, releasable connection, semicircular frame 51 and conveying pipe 41's butt joint is inseparable simultaneously, has avoided the condition that distilled water flows out.

The pipeline set 65 comprises two arc-shaped plates 651 and an expansion pipe 652, the two arc-shaped plates 651 are connected with the left end and the right end of the through hole 70 through pin shafts, a ventilation cavity is formed between the two arc-shaped plates 651, the lower end of the through hole 70 is connected with the expansion pipe 652 in a sliding fit mode, the inner diameter of the expansion pipe 652 is larger than the diameter of the ventilation cavity, because of the limit of the two arc-shaped plates 651, the amount of the gas initially passing through the expansion pipe 652 is small, the buckwheat leaves before and during chopping cannot be blown by small wind force, meanwhile, the buckwheat leaves are prevented from being adhered to the frame body 611 and the chopping knife 67, and during the specific work, after the shredding knife 67 and the pressing set 68 are synchronously stressed and ascend, the vent holes are aligned and inserted with the expansion pipe 652, the expansion pipe 652 is jacked up, thereby ejecting the two arc-shaped plates 651, the amount of gas passing through the expansion pipe 652 is increased, and the increased wind force is favorable for blowing the chopped buckwheat leaves.

The shredding knife 67 is of a grid type structure, so that the buckwheat leaves are more finely crushed, the distillation effect is improved, and the knife tip of the shredding knife 67 faces downwards.

The pressing group 68 comprises a pressing block 681, a connecting plate 682 and an operating spring 683, the pressing block 681 is uniformly installed at the lower end of the connecting plate 682, the operating spring 683 is connected between the connecting plate 682 and the chopping knife 67, the operating spring 683 plays a role in resetting, the lower end face of the pressing block 681 is uniformly provided with a protruding block, the pressing block 681 is favorable for fracturing buckwheat leaves, and a ventilation hole is formed in the middle of the pressing block 681.

The lower end of the pressing block 681 is positioned inside the shredding cutter 67 with a grid structure, so that the pressing block 681 can enter the shredding cutter 67.

Defeated buret group 69 include conveying pipeline 691, exhaust hole 692, prevent stifled group 693 and arc iron plate 694, the intercommunication has conveying pipeline 691 between framework 611 and the semicircle frame 51, exhaust hole 692 has evenly been seted up on the conveying pipeline 691 outer wall, all be equipped with one in every exhaust hole 692 and prevent stifled group 693, install arc iron plate 694 on the outer wall of conveying pipeline 691 right-hand member downside, concrete during operation, can pass through conveying pipeline 691 when the mode of sending through wind will mincer buckwheat leaves carries semicircle frame 51, at this moment, partial wind can blow off from exhaust hole 692, the indiscriminate condition of flowing because of wind production in the semicircle frame 51 has been reduced, prevent setting up of stifled group 693 and avoided the sediment leaf card in exhaust hole 692 department.

Prevent stifled group 693 including ejecting dish 693a, link bracket 693b and prevent stifled spring 693c, link bracket 693b is connected with conveying pipeline 691 through sliding fit's mode, even have between ejecting dish 693a and the conveying pipeline 691 and prevent stifled spring 693c, ejecting dish 693a is installed to the inner of link bracket 693b, ejecting dish 693a is located exhaust hole 692, during specific work, wind will eject dish 693a outwards ejecting and discharge from exhaust hole 692, wind-force is less, ejecting dish 693a inwards removes under preventing stifled spring 693c effect to push away the unexpected sediment leaf of card on exhaust hole 692.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a buckwheat plant essential oil extraction technology, its used a distillation plant, this distillation plant includes tripod (1), retort (2), wears hole (3), eduction tube (4), tee bend frame group (5), comminution device (6), mount (7), storage frame (8), valve connecting pipe (9), its characterized in that: the technology for extracting the essential oil from the buckwheat leaves by adopting the distillation device comprises the following steps:

s1, preprocessing: washing buckwheat leaves with water, putting the buckwheat leaves into a frame body (611), and filling distilled water into a storage frame (8);

s2, shredding: the buckwheat leaf shredding device is characterized in that a shredding knife (67) is driven to descend by a driving air cylinder (66) so as to shred buckwheat leaves, a pressing group (68) descends when the pressing group descends under the extrusion of a delay block (612) so as to tap the shredded buckwheat leaves, the buckwheat leaves are finely shredded by repeated shredding of the shredding knife (67), the shredding knife (67) and the pressing group (68) are driven to ascend synchronously by the driving air cylinder (66) until the pressing group (68) enters the shredding knife (67), so that residue leaves remaining in the shredding knife (67) are scraped, and the shredded buckwheat leaves are conveyed downwards into a semicircular frame (51) by air in a ventilation cavity (63);

s3, conveying: the shielding frame (53) is pulled upwards to close the lower end of the material conveying pipe group (69), and the valve connecting pipe (9) is opened to enable distilled water to flush the buckwheat leaves in the semicircular frame (51) into the distillation flask (2);

s4, distillation and extraction: heating the outside of the distillation flask (2), extracting essential oil and flower water by a distillation method, extracting the essential oil by an extraction method, and storing the essential oil in a sealed manner;

a distillation flask (2) is placed on a tripod (1), a penetration hole (3) is formed in the upper left end of the distillation flask (2), a penetration pipe (4) is arranged in the penetration hole (3), the left end of the penetration pipe (4) is connected with the right end of a three-way frame set (5), the left end of the three-way frame set (5) is connected with a storage frame (8) through a valve connecting pipe (9), the storage frame (8) is installed at the left end of a fixing frame (7), a chopping device (6) is installed at the right end of the fixing frame (7), and the lower end of the fixing frame (7) is installed on the tripod (1);

the discharge pipe (4) comprises a feeding pipe (41), a threaded pipe (42), a sliding groove (43), a sliding frame (44) and a rubber plug (45), the threaded pipe (42) is installed on the outer wall of the left end of the threaded pipe (42), the sliding groove (43) is formed in the upper side of the right end of the feeding pipe (41), the sliding groove (43) is connected with the sliding frame (44) in a sliding fit mode, and the rubber plug (45) is installed at the right end of the sliding frame (44);

the three-way frame group (5) comprises a semicircular frame (51), an arc-shaped groove (52), a shielding frame (53) and a magnet block (54), wherein the arc-shaped groove (52) is formed in the right side of the upper end of the semicircular frame (51), the arc-shaped groove (52) is connected with the shielding frame (53) in a sliding fit mode, and the magnet block (54) is installed at the right end of the shielding frame (53);

the chopping device (6) comprises a frame body group (61), a sealing cover (62), a ventilation cavity (63), an air pump (64), a pipeline group (65), a driving air cylinder (66), a chopping knife (67), a pressing group (68), a material conveying pipe group (69) and a through hole (70), wherein the frame body group (61) is installed on a fixing frame (7), the sealing cover (62) is embedded into the upper end of the frame body group (61), the ventilation cavity (63) is formed in the sealing cover (62), the left end of the ventilation cavity (63) is communicated with the air pump (64), the air pump (64) is installed on the sealing cover (62), the pipeline group (65) is uniformly arranged at the lower end of the ventilation cavity (63), the lower end of the sealing cover (62) is connected with the chopping knife (67) through the driving air cylinder (66), the pressing group (68) is arranged at the upper end of the chopping knife (67), the lower end of the frame body group (61) is connected with the upper end of a semicircular, the lower end of the ventilation cavity (63) is uniformly communicated with a connecting through hole (70);

the frame body group (61) comprises a frame body (611), a delay block (612), a built-in spring (613), a communication groove (614), a sealing plate (615), a connecting rope (616) and a working spring (617), the left end of the inner wall of the frame body (611) is connected with the delay block (612) in a sliding fit mode, the built-in spring (613) is connected between the delay block (612) and the inner wall of the frame body (611), the communication groove (614) is formed in the lower end of the frame body (611), the sealing plate (615) is arranged in the communication groove (614), the right end of the sealing plate (615) is connected with a pressing group (68) through the connecting rope (616), the working spring (617) is connected between the sealing plate (615) and the communication groove (614), and the right end of the delay block (612) is of a.

2. The extraction process of buckwheat plant essential oil according to claim 1, characterized by comprising the following steps: the right end of the semicircular frame (51) is provided with an annular thread groove, the annular thread groove and the round hole of the semicircular frame (51) are coaxially arranged, and the annular thread groove is in thread fit connection with the threaded pipe (42).

3. The extraction process of buckwheat plant essential oil according to claim 1, characterized by comprising the following steps: pipeline group (65) include two arcs (651) and dilatation pipe (652), both ends are connected about two arcs (651) through round pin axle and connect through-hole (70), form the chamber of ventilating between two arcs (651), connect the lower extreme of through-hole (70) to be connected with dilatation pipe (652) through sliding fit's mode, and the internal diameter of dilatation pipe (652) is greater than the diameter in chamber of ventilating.

4. The extraction process of buckwheat plant essential oil according to claim 1, characterized by comprising the following steps: the chopping knife (67) is of a grid type structure, and the knife tip of the chopping knife (67) faces downwards.

5. The extraction process of buckwheat plant essential oil according to claim 1, characterized by comprising the following steps: the pressing group (68) comprises pressing blocks (681), a connecting plate (682) and an operating spring (683), the pressing blocks (681) are uniformly arranged at the lower end of the connecting plate (682), and the operating spring (683) is connected between the connecting plate (682) and the chopping knife (67).

6. The extraction process of buckwheat plant essential oil according to claim 5, wherein: the lower end of the pressing block (681) is positioned inside the grating-type structure shredding knife (67).

7. The extraction process of buckwheat plant essential oil according to claim 1, characterized by comprising the following steps: defeated pipeline group (69) including conveying pipeline (691), exhaust hole (692), prevent stifled group (693) and arc iron plate (694), the intercommunication has conveying pipeline (691) between framework (611) and semi-circular frame (51), exhaust hole (692) have evenly been seted up on conveying pipeline (691) outer wall, all be equipped with one in every exhaust hole (692) and prevent stifled group (693), install arc iron plate (694) on conveying pipeline (691) right-hand member downside outer wall.

8. The extraction process of buckwheat plant essential oil according to claim 7, wherein: prevent stifled group (693) including ejecting dish (693a), link (693b) and prevent stifled spring (693c), link (693b) are connected with conveying pipeline (691) through sliding fit's mode, even have between ejecting dish (693a) and conveying pipeline (691) and prevent stifled spring (693c), ejecting dish (693a) is installed to the inner of link (693b), ejecting dish (693a) is located exhaust hole (692).