Squeezing device for plant extraction

Abstract

The utility model relates to the technical field of squeezing devices, in particular to a squeezing device for plant extraction. The device comprises a device shell internally provided with an inner cavity, a double-helix crushing cutter and an opposite extrusion roller are sequentially arranged in the inner cavity from top to bottom, a stirring assembly is rotationally connected to the bottom of the inner cavity, filter plates are obliquely arranged on the two opposite sides of the cavity bottom of the inner cavity, a slag outlet is formed in the cavity bottom of the inner cavity, and a slag outlet is formed in the bottom of the inner cavity. A liquid outlet is formed in the bottom of the side wall of the inner cavity; the device shell is provided with a flushing vertical groove where a water gun head is inserted on the same side with the liquid outlet, the flushing vertical groove is rotatably connected with a cover plate covering the flushing vertical groove, the side, facing the inner cavity, of the cover plate is connected with a sealing layer, and the side edge of the sealing layer abuts against the groove wall of the flushing vertical groove. The device has the effect of improving the cleaning convenience of the filter plate in the device.

Description

Technical Field

[0001] The present application relates to the technical field of pressing devices, and in particular to a pressing device for plant extraction. Background Art

[0002] Plant extraction is a process of extracting active ingredients or compounds from plants, including solvent extraction, supercritical fluid extraction, pressing extraction, etc. Traditional plant extraction pressing devices often crush the plants first and then use a piston pressing method to press them, which results in waste and affects the liquid output rate.

[0003] Therefore, the existing Chinese patent proposes a pressing device, in which a spiral crushing knife and an extrusion roller are built-in from top to bottom in the pressing cylinder, and a filter plate is installed obliquely on the inner wall of the bottom of the cylinder. A stirring shaft is installed in the middle of the filter plate enclosure area. Plants are put into the pressing cylinder from above, and are cut and pressed to obtain an extract mixed with plant residues. The stirring shaft rotates and centrifuges the extract, and the extract is discharged from the material discharge port, and the residue is discharged from the residue discharge port.

[0004] After using for a period of time, the filter holes of the filter plate are easily clogged by residues, affecting the liquid output efficiency. It is necessary to remove the filter plate and rinse it with a high-pressure water gun to solve the blockage problem. The disassembly and cleaning frequency is high, but the filter plate is installed in the pressing cylinder, and the disassembly and cleaning is more cumbersome. Overall, it is inconvenient to clean and there is still room for improvement. Utility Model Content

[0005] In order to improve the ease of cleaning of the filter plate, the present application provides a pressing device for plant extraction.

[0006] The present application provides a pressing device for plant extraction using the following technical solution:

[0007] A pressing device for plant extraction, comprising a device housing with an inner cavity, wherein a double-helix crushing knife and an opposite squeezing roller are sequentially arranged in the inner cavity from top to bottom, a stirring assembly is rotatably connected to the bottom of the inner cavity, filter plates are obliquely arranged on opposite sides of the stirring assembly at the bottom of the inner cavity, a slag outlet is opened between adjacent filter plates at the bottom of the inner cavity, and a liquid outlet is opened at the bottom of the inner cavity side wall;

[0008] The device shell is provided with a flushing vertical groove for inserting a water supply gun head on the same side as the liquid outlet, and a cover plate for covering the flushing vertical groove is rotatably connected to the flushing vertical groove, and a sealing layer is connected to the cover plate facing the inner cavity, and the side edge of the sealing layer abuts against the groove wall of the flushing vertical groove.

[0009] By adopting the above-mentioned technical scheme, the cover plate is opened regularly to expose the flushing vertical groove, and the head of the high-pressure water gun is inserted into the flushing vertical groove and slides up and down along the flushing vertical groove, so as to flush the filter plates at different heights and achieve preliminary cleaning of the filter plates. Compared with conventional pressing devices, the time interval required for disassembly and cleaning of the filter plates of the present application is extended each time; overall, the scheme delays the time when the filter plates become blocked, ensures the efficiency of each filtration, and reduces the frequency of disassembly and cleaning of the filter plates.

[0010] Optionally, the width of the vertical flushing groove is greater than the outer diameter of the water gun head.

[0011] By adopting the above technical solution, the head of the high-pressure water gun can move circumferentially in the flushing vertical groove to flush different positions of the filter plate, thereby improving the cleaning degree of the filter plate.

[0012] Optionally, a rotating block is connected to one side of the cover plate, the rotating block is rotatably connected to the device housing, and a buckle is fixed between the side of the cover plate away from the rotating block and the device housing.

[0013] By adopting the above technical solution, after the cover plate covers the flushing vertical groove, the buckle is fastened to improve the covering stability of the cover plate and reduce the probability of water leakage at the cover plate.

[0014] Optionally, a first magnetic block is disposed on a side of the cover plate facing away from the sealing layer, and a second magnetic block that magnetically attracts the first magnetic block is disposed on an outer side of the device housing.

[0015] By adopting the above technical solution, before flushing, the cover plate is magnetically attracted to the outside of the device housing to prevent the cover plate from affecting the flushing operation.

[0016] Optionally, the cover plate can be flipped horizontally, the first magnetic block is embedded in the cover plate, and the second magnetic block is embedded in the device housing.

[0017] Optionally, a groove wall of the vertical flush groove is provided with a rotating groove for the rotating block to be embedded and rotatably connected, and a groove wall of the rotating groove on a side away from the vertical flush groove is provided with an embedding vertical groove for the cover plate to be embedded.

[0018] By adopting the above technical solution, after the cover is opened, the cover is embedded in the embedded vertical groove, which further reduces the impact of the setting of the cover on the flushing pipeline and ensures the convenience of flushing.

[0019] Optionally, a disengaging opening is provided on a groove wall of the flushing vertical groove away from the rotating groove.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. The cover plate can be opened regularly to perform preliminary cleaning of the filter plate in the self-flushing vertical trough, which is simple and easy, delaying the time when the filter plate becomes blocked to ensure the efficiency of each filtration. After the device has been working for a period of time, the filter plate is disassembled and cleaned for deep cleaning; since multiple preliminary cleanings have been performed before, the frequency of disassembly and cleaning of the filter plate of the present application is reduced each time, and the difficulty of each disassembly and cleaning is also reduced, which improves the simplicity of cleaning of the filter plate as a whole;

[0022] 2. When flushing the filter plate, flip the cover plate and embed it into the embedded vertical groove, and fix it with magnetic blocks to reduce the impact of the cover plate setting on the direction of the water pipe and improve the convenience of flushing;

[0023] 3. When there is no need to flush the filter plate, use the buckle to lock the cover to ensure the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional view of the main structure of the pressing device used for plant extraction in an embodiment of the present application.

[0025] Figure 2 It is a right view of the pressing device for plant extraction according to an embodiment of the present application.

[0026] Figure 3 It is a schematic diagram of the structure of the cover plate of the embodiment of the present application.

[0027] Explanation of the reference numerals in the accompanying drawings: 1. Device housing; 11. Inner cavity; 111. Processing area; 112. Filtering area; 12. Support feet; 13. Feed inlet; 14. Slag outlet; 15. Liquid outlet; 16. Flushing vertical groove; 17. Rotating groove; 18. Embedded vertical groove; 181. Second magnetic block; 19. Prying mouth; 2. Double-helix crushing knife; 21. Crushing guide plate; 3. Opposite extrusion rollers; 31. Extrusion channel; 32. Extrusion guide plate; 33. Drainage channel; 4. Stirring assembly; 41. Stirring motor; 42. Stirring fan; 5. Drive assembly; 51. Support plate; 52. Drive motor; 53. Driving wheel; 54. Driven wheel; 55. Transmission chain; 6. Filter plate; 7. Cover plate; 71. Rotating block; 72. Sealing layer; 73. First magnetic block; 8. Buckle. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 This application is described in further detail.

[0029] A coordinate system XYZ is set in this article, wherein the positive direction of the Z axis represents the top, the negative direction of the Z axis represents the bottom, the positive direction of the Y axis represents the front, the negative direction of the Y axis represents the back, the positive direction of the X axis represents the right, and the negative direction of the X axis represents the left.

[0030] The present application discloses a pressing device for plant extraction. Figure 1 and Figure 2 The pressing device for plant extraction includes a device housing 1 with an inner cavity 11, and four corners of the bottom of the device housing 1 are installed with support feet 12 through bolts, and the support feet 12 enable the device housing 1 to be set off the ground.

[0031] A feed port 13 is provided in the middle of the upper end of the device housing 1, and the feed port 13 is connected to the inner cavity 11. A slag outlet 14 is provided through the lower end of the device housing 1, and a liquid outlet 15 is provided through the right end of the device housing 1 near the bottom. In the actual squeezing process, the slag outlet 14 and the liquid outlet 15 can be threadedly connected to a conduit, and the plant residue and the liquid are transported to the target location respectively by the conduit.

[0032] The inner cavity 11 is provided with a double-helix crushing blade 2, an opposing extrusion roller 3 and a stirring assembly 4 from top to bottom. The double-helix crushing blade 2 and the opposing extrusion roller 3 are rotatably connected between the front and rear sides of the inner cavity 11 through bearings. The rotation directions of the double-helix crushing blades 2 are opposite, and the rotation directions of the opposing extrusion rollers 3 are also opposite. A driving assembly 5 for driving the double-helix crushing blade 2 and the opposing extrusion roller 3 to rotate is installed on the rear side of the device housing 1.

[0033] The side walls on both sides of the inner cavity 11 are fixed with downwardly inclined crushing guide plates 21 by bolts. The crushing guide plates 21 are located between the double-helix crushing blade 2 and the nearest opposite squeezing roller 3, and the lower end of the crushing guide plates 21 extends to the lower end of the double-helix crushing blade 2. An squeezing channel 31 for the crushed plants to pass through is formed between the opposite squeezing rollers 3, and the crushing guide plates 21 guide the crushed plants into the squeezing channel 31.

[0034] There can be multiple pairs of opposing extrusion rollers 3 spaced from top to bottom, and this application takes two pairs as an example. Two extrusion guide plates 32 are arranged between the upper and lower adjacent opposing extrusion rollers 3, and the two ends of the extrusion guide plates 32 are respectively fixed to the front and rear sides of the inner cavity 11 by bolts. A drainage channel 33 is formed between the two extrusion guide plates 32, and the upper end of the extrusion guide plate 32 is close to but not abutting the opposing extrusion roller 3 located above, so as to guide the extruded mixed liquid to flow into the opposing extrusion roller 3 below, while not affecting the normal rotation of the opposing extrusion roller 3 above.

[0035] The stirring assembly 4 includes a stirring motor 41 placed on the ground and a stirring fan 42 fixedly connected to the output end of the stirring motor 41 by a coupling. The output shaft of the stirring motor 41 extends into the inner cavity 11, so that the stirring fan 42 is located in the middle of the lower end of the inner cavity 11.

[0036] Filter plates 6 are fixed with bolts on both sides of the inner cavity 11. The filter plates 6 are tilted from high to low toward the stirring fan 42 to divide the inner cavity 11 into a processing area 111 and a filtering area 112. The processing area 111 is between the left and right filter plates 6, and the filtering area 112 is between the filter plates 6 and the side wall of the inner cavity 11. The slag outlet 14 is opened at the bottom of the processing area 111, and the liquid outlet 15 is opened at the groove wall of the filtering area 112 on the right.

[0037] Reference Figure 2 and Figure 3 The driving assembly 5 includes a support plate 51, a driving motor 52, a driving wheel 53, a driven wheel 54 and a transmission chain 55. The support plate 51 is fixed to the rear side of the device housing 1 by bolts, and the driving motor 52 is placed on the upper plate surface of the support plate 51 and fixed to the support plate 51 by bolts. The driving wheel 53 is rotatably connected to the rear side wall of the device housing 1 by a rotating shaft and a bearing, and the axis of the driving wheel 53 is coaxial with the output shaft of the driving motor 52, and the output shaft of the driving motor 52 is connected to the driving wheel 53 through a coupling.

[0038] There are multiple driven wheels 54, which are respectively installed at the rear ends of the double-helix crushing blade 2 and the opposite extrusion roller 3 through keyways. The driving wheel 53 and the driven wheel 54 are meshed and connected through a transmission chain 55, so that when the driving wheel 53 rotates, the double-helix crushing blade 2 and the opposite extrusion roller 3 are eventually driven to rotate synchronously. In order to ensure the crushing efficiency and extrusion efficiency, the driving assembly 5 is provided with two sets on the left and right, and the two sets of driving assemblies 5 rotate in opposite directions. The embodiment of the present application is shown as an example in which the two sets of driving wheels 53 rotate toward the side close to each other.

[0039] Both left and right sides of the device housing 1 are provided with flushing vertical grooves 16 for inserting water gun heads. The groove width of the flushing vertical grooves 16 is larger than the outer diameter of the water gun head, so that the head of the high-pressure water gun can move circumferentially in the flushing vertical grooves 16 to flush different positions of the filter plate 6 and improve the cleaning degree of the filter plate 6.

[0040] The flushing vertical groove 16 is rotatably connected with a cover plate 7, which can be embedded and cover the flushing vertical groove 16. A rotating block 71 is integrally formed on the right side of the cover plate 7, and a rotating groove 17 is provided on the groove wall of the flushing vertical groove 16 for the rotating block 71 to be embedded and rotatably connected by a pin shaft. A sealing layer 72 is bonded to the cover plate 7 on the side facing the inner cavity 11, and the outer side of the device housing 1 is bolted with a buckle 8 that can cooperate with each other on the front side of the cover plate 7 and the front side of the cover plate 7. When the cover plate 7 covers the flushing vertical groove 16, the side of the sealing layer 72 and the side of the cover plate 7 both abut against the groove wall of the flushing vertical groove 16, and the outer side of the device housing 1 and the front side of the cover plate 7 are fixed by the buckle 8.

[0041] Correspondingly, the rear wall of the rotating groove 17 is provided with an embedding vertical groove 18 for the cover plate 7 to be embedded, so that the cover plate 7 can be turned horizontally. In order to facilitate the opening, the front side of the flushing vertical groove 16 and the rear side of the embedding vertical groove 18 are provided with an opening 19. A first magnetic block 73 is embedded and bonded on the side of the cover plate 7 facing away from the sealing layer 72, and a second magnetic block 181 is embedded and bonded on the groove wall of the embedding vertical groove 18 of the device housing 1. When the cover plate 7 is flipped outward and embedded in the embedding vertical groove 18, the second magnetic block 181 is fixed by magnetic attraction with the first magnetic block 73.

[0042] The implementation principle of a pressing device for plant extraction in an embodiment of the present application is as follows: when the pressing device is working, plants are put into the feed port 13, so that the plants are squeezed by the double-helix crushing knife 2 and the opposing squeezing rollers 3 in turn to form a mixed liquid mixed with plant residues, and the stirring component 4 continuously stirs the liquid to centrifuge the liquid, and the residue is left in the processing area 111 and flows out from the residue outlet 14; the filtrate enters the filtration area 112 and flows out from the liquid outlet 15.

[0043] After the squeezing device is working, it is selected whether to flush the filter plate 6 according to actual needs and the degree of residue accumulation on the filter plate 6. If it is necessary to flush the filter plate 6, the cover plate 7 is turned over so that the flushing vertical groove 16 is exposed to the outside, and the head of the high-pressure water gun is inserted into the flushing vertical groove 16 and slides up and down along the flushing vertical groove 16, so as to flush the filter plate 6 at different heights, and achieve preliminary cleaning of the filter plate 6, so as to extend the time interval for disassembling and washing the filter plate 6. After the squeezing device has been working for a period of time, the filter plate 6 is disassembled and washed.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pressing device for plant extraction, characterized in that: The invention comprises a device housing (1) having an inner cavity (11) therein, wherein a double-helix crushing knife (2) and an opposite squeezing roller (3) are sequentially arranged in the inner cavity (11) from top to bottom, a stirring assembly (4) is rotatably connected to the bottom of the inner cavity (11), filter plates (6) are obliquely arranged on opposite sides of the stirring assembly (4) at the bottom of the inner cavity (11), a slag outlet (14) is provided at the bottom of the inner cavity (11) between adjacent filter plates (6), and a liquid outlet (15) is provided at the bottom of the side wall of the inner cavity (11); The device housing (1) is provided with a flushing vertical groove (16) for inserting a water supply gun head on the same side as the liquid outlet (15); a cover plate (7) for covering the flushing vertical groove (16) is rotatably connected to the flushing vertical groove (16); a sealing layer (72) is connected to the side of the cover plate (7) facing the inner cavity (11); and a side edge of the sealing layer (72) abuts against a groove wall of the flushing vertical groove (16).

2. A pressing device for plant extraction according to claim 1, characterized in that: The width of the flushing vertical groove (16) is greater than the outer diameter of the water gun head.

3. A pressing device for plant extraction according to claim 1 or 2, characterized in that: A rotating block (71) is connected to one side of the cover plate (7), and the rotating block (71) is rotatably connected to the device housing (1). A buckle (8) is fixed between the side of the cover plate (7) facing away from the rotating block (71) and the device housing (1).

4. A pressing device for plant extraction according to claim 3, characterized in that: A first magnetic block (73) is arranged on the side of the cover plate (7) facing away from the sealing layer (72), and a second magnetic block (181) that magnetically attracts the first magnetic block (73) is arranged on the outside of the device housing (1).

5. A pressing device for plant extraction according to claim 4, characterized in that: The cover plate (7) can be flipped horizontally, the first magnetic block (73) is embedded in the cover plate (7), and the second magnetic block (181) is embedded in the device housing (1).

6. A pressing device for plant extraction according to claim 4, characterized in that: The groove wall of the flushing vertical groove (16) is provided with a rotating groove (17) for the rotating block (71) to be embedded and rotatably connected, and the groove wall of the rotating groove (17) on the side away from the flushing vertical groove (16) is provided with an embedding vertical groove (18) for the cover plate (7) to be embedded.

7. A pressing device for plant extraction according to claim 6, characterized in that: A breakaway opening (19) is provided on the wall of the flushing vertical groove (16) at a side away from the rotating groove (17).

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