CN114288750B

CN114288750B - A filter equipment for preparing root of a torch piece extract

Info

Publication number: CN114288750B
Application number: CN202111670121.3A
Authority: CN
Inventors: 赵建权; 王学政; 王钧; 陶兴成; 梁璇; 范成卨
Original assignee: Chongqing Pharmaceutical Research Institute Co Ltd
Current assignee: Chongqing Pharmaceutical Research Institute Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2023-02-14
Anticipated expiration: 2041-12-31
Also published as: CN114288750A

Abstract

The invention discloses a filtering device for preparing a torch flower root piece extract, which comprises a heating unit, an extrusion unit for extruding decocted torch flower root pieces, a lifting unit, an exhaust unit for releasing pressure and exhausting, a rough filtering unit and a fine filtering unit, wherein the extrusion unit is used for extruding the decocted torch flower root pieces; the first discharge gate of heating unit corresponds with the feed inlet of coarse filtration unit, and the second discharge gate corresponds with the feed inlet of exhaust unit, the first feed inlet of heating unit corresponds with the external world, and the discharge gate intercommunication of second feed inlet and essence filtration unit, the discharge gate intercommunication of third feed inlet and exhaust unit, the discharge gate of coarse filtration unit corresponds with the feed inlet of essence filtration unit.

Description

A filter equipment for preparing spark flower root piece extract

Technical Field

The invention relates to extract preparation equipment, in particular to a filtering device for preparing a extract of a root piece of a torch flower.

Background

The herba Polygoni Hydropiperis root tablet is a traditional Chinese medicine immunosuppressant prepared by taking traditional Chinese medicine herba Polygoni Hydropiperis root as main raw material, and has good effectAnti-inflammatory and immunosuppressive effects, and has been widely used as a Chinese medicinal immunosuppressant in clinic to treat various autoimmune diseases, such as rheumatoid arthritis, lupus erythematosus, chronic nephritis, psoriasis, and the like. At present, the method adopted by the herba pyrrosiae flower root tablet is a water decoction and alcohol precipitation method, a duplex filter is adopted for filtering extract after alcohol precipitation, and a filter screen is silk. The method can not remove rosin and other mucus in the extract, so that the wall sticking phenomenon of the filtrate in the concentration process is serious, the material waste and the efficiency are reduced, meanwhile, the filtration is not fine, the filtrate contains more impurities, the concentrated extract is difficult to granulate, secondary granulation is needed, and the hardness of plain tablets is 3.5-4.0 kg/cm ² The process requirements cannot be met, the product quality is unstable, and the time and energy are consumed.

The preparation method of the extract of the root slices of the Ficus pumila by adopting a water decoction and alcohol precipitation method comprises the following operation steps: 1. extracting the spartina alterniflora, cutting into slices, adding water, and decocting for 2-5 times; 2. merging and filtering the decocted liquid, and then heating and concentrating the liquid to obtain clear paste with the relative density of 1.05-1.07; 3. adding 75-85% ethanol into the fluid extract while stirring; 4. filtering; 5. heating and concentrating the filtrate to obtain thick paste with the relative density of 1.30-1.35.

Disclosure of Invention

Based on the defects in the prior art mentioned in the background art, the invention provides a filter device for preparing a extract of a root piece of a torch flower.

The invention overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:

a filter device for preparing a extract of a root piece of a torch flower comprises a heating unit, an extrusion unit for extruding decocted root pieces of the torch flower, a lifting unit, an exhaust unit for releasing pressure and exhausting air, a rough filtering unit and a fine filtering unit;

the first discharge gate of heating unit corresponds with the feed inlet of coarse filtration unit, and the second discharge gate corresponds with the feed inlet of exhaust unit, the first feed inlet of heating unit corresponds with the external world, and the discharge gate intercommunication of second feed inlet and essence filtration unit, the discharge gate intercommunication of third feed inlet and exhaust unit, the discharge gate of coarse filtration unit corresponds with the feed inlet of essence filtration unit.

Furthermore, the heating unit comprises a heating box, the opening at the upper end of the heating box is a first feed inlet, a cover plate capable of ascending and descending is arranged at the opening, the cover plate can be locked with the telescopic end of the lifting unit arranged on the first mounting plate through a locking structure, the lower end surface of the cover plate is provided with an extrusion unit, the heating box is arranged on the upper end surface of the second mounting plate, the upper end of the rear side wall of the heating box is provided with a window, the rear side wall of the heating box is hinged with a first switch plate for sealing the window, the hinged part is provided with a first pressure spring for resetting, the front side wall of the heating box is movably embedded with a first push plate corresponding to the window, a first push rod is fixed on the side wall, away from the window, of the first push plate, one end, away from the first push plate, of the first push rod penetrates through the front side wall of the heating box in a sliding mode, a handle is fixed on the side wall, away from the first push plate, of the first push plate, a first discharging pipeline is communicated with the bottom plate of the heating box, one end, away from the heating box, of the first discharging pipeline penetrates through a second mounting plate, is attached to the second mounting plate in a sliding mode, is attached to a second switch plate, the second switch plate is fixed on a cross rod of a first L-shaped push rod, one end, away from the cross rod, of a vertical rod of the first L-shaped push rod penetrates through a first sliding groove formed in the second mounting plate in the left-right direction, and is in transmission connection with the extrusion unit, and the first discharging pipeline is located right above a feeding port of the rough filtering unit;

a collecting box for recovering residues is fixed on the upper end face of the second mounting plate, and the upper end of the collecting box is opened and is positioned below a window on the rear side wall of the heating box;

the second mounting panel up end still is fixed with the solvent case that is used for adorning the solvent for the preparation extract, install the water pump on the solvent case, the water inlet of water pump communicates through the delivery port of first water pipe with the solvent case, and its delivery port communicates through the water inlet of second water pipe with the heating cabinet.

Furthermore, the locking structure comprises two L-shaped vertical plates which are symmetrical about the center of the cover plate and are fixed on the upper end surface of the cover plate, and the vertical plates of the two L-shaped vertical plates are parallel to each other and are arranged along the left and right directions;

the transverse plates of the two L-shaped vertical plates are parallel to each other and are arranged in the front-back direction, locking rods are arranged on opposite surfaces of the two vertical plates in a sliding mode in the left-right direction, the two locking rods are arranged oppositely, the ends, close to the locking rods, of the two locking rods are both arranged into circular arcs, first triangular blocks are fixed at the ends, far away from the locking rods, of the two locking rods, first springs are sleeved on the outer walls of the two locking rods, one ends of the first springs are fixed on the side walls of the vertical plates, the other ends of the first springs are fixed on the first triangular blocks, first limiting blocks are further fixed on the outer walls of the two locking rods, the two first limiting blocks are symmetrical with the center of the cover plate, the side walls, close to the transverse plates, of the first limiting inclined planes are arranged into first guide inclined planes, first clamping grooves are formed in the side walls, far away from the ends, provided with the circular arcs, of the locking rods, and the first clamping grooves are located at the lower positions of the first guide inclined planes;

limiting rods are arranged on the opposite surfaces of the two vertical plates in a sliding mode along the front-back direction, first clamping blocks which are clamped with the first clamping grooves in a sliding mode are fixed at one ends, close to the locking rods, of the two limiting rods, second triangular blocks are fixed at the other ends of the two limiting rods, second guiding inclined planes which are matched with the first guiding inclined planes in a sliding mode are arranged on the side walls, close to the first limiting blocks, of the two first clamping blocks, second springs are sleeved on the outer walls of the two limiting rods, one ends of the second springs are fixed on the vertical plates, and the other ends of the second springs are fixed on the second triangular blocks;

the lateral wall up end all is fixed with the second stopper about the heating cabinet, two the second stopper sets up relatively, and its up end all sets up to the third direction inclined plane with the inclined plane sliding fit of first three hornblocks, two all set up the through-hole with first three hornblock slip block on the opposite face of second stopper.

Furthermore, the lifting unit comprises a first cylinder arranged on the upper end surface of a first mounting plate, the telescopic end of the first cylinder is telescopic along the vertical direction and is fixedly provided with a first connecting plate, the lower end surface of the first connecting plate is rotatably connected with the upper end of a lifting rod, the lower end of the lifting rod is fixed on the upper end surface of a locking block, a first sleeve is sleeved on the outer wall of the lifting rod in a sliding manner, the first sleeve is rotatably arranged on the first mounting plate, the outer wall of the first sleeve is in transmission connection with an output shaft of a first motor arranged on the upper end surface of the first mounting plate through a first bevel gear set, the lower end surface of the locking block penetrates through a cover plate in a sliding manner and is fixedly provided with a lifting plate, the front side wall and the rear side wall of the lifting plate are respectively and fixedly provided with second L-shaped push rods along the left-right direction, the cross rods of the two second L-shaped push rods are fixed on the side wall of the lifting plate, one end of a vertical rod, which is far away from the cross rod, is provided with a fourth guide inclined plane and can penetrate through the cover plate and is in sliding fit with an inclined plane of a second triangular block, and the left side wall and right side wall of the lifting plate are respectively provided with fifth guide inclined planes;

the central point that is located the apron of locking piece puts, sets up the locking hole that link up on its left and right sides lateral wall, the locking hole can set up the one end slip block for the circular arc with the check lock lever.

Further, the extrusion unit comprises two extrusion plates which are oppositely arranged and are parallel to the left side wall and the right side wall of the heating box, two first vertical plates which are oppositely arranged and are parallel to the extrusion plates are fixed on the lower end face of the cover plate, first T-shaped through grooves are formed in the lower end faces of the two first vertical plates along the left-right direction, first T-shaped sliding blocks which are in sliding clamping with the first T-shaped through grooves are fixed on the upper end faces of the two extrusion plates, lower end faces of the two extrusion plates are arranged on the upper end face of the bearing plate in a sliding mode, second T-shaped through grooves are formed in the upper end face of the bearing plate along the left-right direction, second T-shaped sliding blocks which are arranged in the second T-shaped through grooves in a sliding mode are fixed on the lower end faces of the two extrusion plates, a plurality of sieve meshes are formed in the upper end face of the bearing plate and the opposite faces of the two extrusion plates, and the front side wall and the rear side wall of the two extrusion plates are respectively in sliding fit with the front inner wall and the rear wall of the heating box;

the lifting plate is positioned between the two first vertical plates, sliding plates are arranged on the opposite surfaces of the two first vertical plates in a sliding mode along the left-right direction, the ends, close to the two sliding plates, of the two sliding plates are positioned between the two first vertical plates, the lower end surfaces of the two sliding plates are hinged with hinged plates, the ends, far away from the hinged plates, of the two hinged plates are fixed with second push rods, second pressure springs for resetting are arranged at the hinged positions of the two hinged plates and the sliding plates, the sliding plates extend out of the ends, far away from the hinged points, of the hinged plates, the side walls of the hinged plates are set to be sixth guide inclined planes, and the sixth guide inclined planes of the two hinged plates can be in sliding contact with the fifth guide inclined planes at the left end and the right end of the lifting plate respectively;

the heating box is characterized in that the left and right outer walls of the heating box are respectively fixed with a support plate, the upper end surfaces of the two support plates are respectively provided with a first through groove along the left and right direction, the two first through grooves are respectively provided with a first sliding block in a sliding manner, the upper end surfaces of the two support plates are respectively and vertically fixed with a support rod, the two support rods are respectively provided with an inclined first rotating rod in a rotating manner through a rotating pin, the rotating pin is positioned at the central position of the first rotating rod, one ends of the two first rotating rods, which are close to the heating box, are respectively sleeved with a sliding sleeve in a sliding manner, one ends of the two first rotating rods, which are far away from the heating box, are respectively sleeved with a first sliding rod in a sliding manner, the outer walls of the two sliding sleeves are respectively hinged with a second sliding rod, one ends of the two second sliding rods, which are far away from the sliding sleeve, respectively slide through the left and right side walls of the heating box along the left and right direction and contact with one ends of the two second push rods, which are far away from the sliding plates, two all the cover is equipped with the third spring on the outer wall of second slide bar, third spring one end is fixed at the outer wall of heating cabinet, and the other end is fixed at the outer wall of sliding sleeve, two the one end that first bull stick was kept away from to first slide bar is articulated with the up end of two first sliders respectively, two the lower terminal surface of first slider all is fixed with the second push pedal, two all be fixed with the third slide bar on the lateral wall of second push pedal, two the one end that the second push pedal was kept away from to the third slide bar slides respectively along left right direction and passes the heating cabinet about the lateral wall and be fixed with the third T shape logical groove of seting up along upper and lower direction, two the lateral wall upper to eye that the stripper plate kept away from all is fixed with the third T shape slider that leads to groove sliding fit, one of them the lower terminal surface of second push pedal is fixed with the montant of first L shape push rod.

Further, the exhaust unit is including installing the blast pipe on the lateral wall of heating cabinet and with the second discharge gate intercommunication of heating cabinet, the feed inlet department of blast pipe installs the air discharge fan, the one end that the air discharge fan was kept away from to the blast pipe communicates with the feed inlet of solvent case, and still is provided with the condenser pipe on its outer wall.

Furthermore, the coarse filtration unit comprises a plurality of filter cloth structures, two second vertical plates which are fixed on the upper end surface of the third mounting plate and are oppositely arranged, two conveyor belts which are parallel to each other are arranged between the two second vertical plates, the length of the two conveyor belts is arranged along the left and right direction, the right ends of the two conveyor belts are rotatably sleeved on the outer wall of the first rotating shaft, the left ends of the two conveyor belts are rotatably sleeved on the outer wall of the second rotating shaft, the two ends of the first rotating shaft and the second rotating shaft are respectively rotatably arranged on the opposite surfaces of the two second vertical plates, one end of the first rotating shaft is rotatably sleeved with a second sleeve, one end of the second sleeve, which is far away from the first rotating shaft, rotatably penetrates through the adjacent second vertical plates and is in transmission connection with the output shaft of a second motor which is arranged on the upper end surface of the third mounting plate through a first belt, the upper end surfaces of the two conveyor belts are both fixed with fixing plates, and the upper end surfaces of the two fixing plates are both provided with U-shaped grooves, the third push plate and the fourth push plate are respectively positioned at the left end and the right end of the conveyor belt and fixed at the telescopic ends of two second cylinders, the two second cylinders are fixed on the upper end surface of a third mounting plate, guide sliding chutes are respectively formed in the opposite surfaces of the two second vertical plates along the length direction parallel to the conveyor belt, the two guide sliding chutes are positioned above the conveyor belt, a fifth push plate is arranged between the two second vertical plates in a sliding manner, the fifth push plate is positioned above the fourth push plate, second sliding blocks arranged in the two guide sliding chutes in a sliding manner are respectively fixed on the front side wall and the rear side wall of the fifth push plate, the left side wall of the fifth push plate is fixed at the telescopic end of the third cylinder, and two placing rods which are oppositely arranged and are parallel to the length direction of the guide sliding chutes are fixed on the right side wall of the fifth push plate, the third cylinder is fixed on the left side walls of the two second vertical plates through a fourth mounting plate, fourth sliding rods are arranged on the opposite surfaces of the two second vertical plates in a sliding mode along the front-back direction, the two fourth sliding rods are oppositely arranged and located right above the third push plate, a first baffle is fixed at one end close to each fourth sliding rod, one end far away from each fourth sliding rod penetrates through the adjacent second vertical plates in a sliding mode respectively, fourth springs are sleeved on the outer walls of the two fourth sliding rods, one ends of the fourth springs are fixed on the first baffle, the other ends of the fourth springs are fixed on the side walls of the second vertical plates, and the filter cloth structures sequentially move in a rectangular track circulating mode under the driving of the fifth push plate, the third push plate, the conveyor belt and the fourth push plate;

the slag filtering box is installed on the lower end face of the third installation plate, the upper end of the slag filtering box is opened and penetrates through the third installation plate to be located between two second cylinders, one of the two second cylinders is rotatably installed with a third sleeve on the side wall of a second vertical plate, one end of the third sleeve is rotatably sleeved with a second rotating rod, one end, far away from the third sleeve, of the second rotating rod is located between the two second vertical plates and is fixedly provided with a second clamping block, the other end of the third sleeve penetrates through the second vertical plates to be in transmission connection with an output shaft of a second motor through a second belt, an output shaft of the second motor is further in transmission connection with one end of a fourth sleeve through a second bevel gear set, the other end of the fourth sleeve is rotatably sleeved with the third rotating rod, one end, far away from the fourth sleeve, of the third rotating rod is fixedly provided with a cam, and a protruding portion of the cam is in sliding contact with one end, far away from the fourth sliding rod, of the second vertical plate.

The filter cloth structure comprises a movable box, wherein rotary columns are fixed on the front side wall and the rear side wall of the movable box, one end, far away from the movable box, of one rotary column is provided with a second clamping groove in sliding clamping with a second clamping block, the right side wall of the movable box is provided with a second through groove in the front-rear direction, the second through groove is internally provided with two fifth sleeves which are oppositely arranged in a sliding manner, the left ends of the two fifth sleeves are positioned in the movable box and hinged with a hinged rod, the right ends of the two fifth sleeves are positioned on the outer wall of the movable box and respectively fixed with a first fixing clamp through a fixing rod, one ends, far away from the fifth sleeves, of the two hinged rods are hinged with a telescopic end of a fourth cylinder, the telescopic end of the fourth cylinder is also fixed with a limiting plate for limiting the hinged rod, and the fourth cylinder is fixed on the upper end surface of the movable box;

the movable box is internally fixed with two third triangular blocks which are oppositely arranged, two fifth sleeves are internally and slidably sleeved with fifth slide bars, one ends of the fifth slide bars extend out of the left end of the fifth slide bar in a sliding manner and are positioned in the movable box, seventh guide inclined planes which are in sliding fit with the inclined planes of the two third triangular blocks are respectively arranged in the fifth sleeves, the right ends of the other ends of the fifth slide bars extend out of the movable box in a sliding manner and are respectively and fixedly provided with second fixing clamps through fixing rods, the outer walls of the two fifth slide bars are respectively sleeved with fifth springs, one ends of the fifth springs are fixedly arranged at the right ends of the fifth slide bars, the other ends of the fifth springs are fixedly arranged on second stop blocks on the outer walls of the fifth slide bars, filter cloth is detachably clamped between the two fifth slide bars through the two first fixing clamps and the two second fixing clamps, and is positioned right above the third push plate, and is positioned right below the first discharge pipeline and right above a feed inlet of the fine filter unit.

Further, the fine filtering unit comprises a fine filtering box arranged right above a third mounting plate, the upper end of the fine filtering box is open and is positioned right below the first discharging pipeline, a first roller is rotatably arranged at the opening position of the fine filtering box through a third rotating shaft, the length direction of the first roller is arranged along the front-back direction and is positioned at the left end of the fine filtering box, a sixth push plate is arranged in the fine filtering box in a sliding manner, the front side wall and the rear side wall of the sixth push plate are respectively arranged in third sliding grooves formed in the front side wall and the rear side wall of the fine filtering box in a sliding manner through third sliding blocks, a second roller parallel to the first roller is rotatably arranged on the lower end surface of the sixth push plate through a fourth rotating shaft, and the right side wall of the sixth push plate is fixed at the telescopic end of a fifth cylinder, the right side wall at the smart filter box is fixed through the fifth mounting panel to the fifth cylinder, still be provided with the filter that is used for placing filter paper in the smart filter box, the filter is located the below of first cylinder, second cylinder, the bottom plate of smart filter box passes through the second ejection of compact pipeline and communicates with the feed inlet of the piston case of installing terminal surface under the third mounting panel, the piston incasement activity is provided with the piston board, the piston board is fixed with the flexible end of the sixth cylinder of installing on the piston case outer wall through the piston rod, the discharge gate of piston case passes through the second feed inlet intercommunication of third water pipe and heating cabinet, all install the check valve on second ejection of compact pipeline, the third water pipe, still install the control valve of control third water pipe discharge gate switch on the piston case.

After adopting the structure, compared with the prior art, the invention has the advantages that:

1. the cover plate is selectively connected with the telescopic end of the lifting unit through the locking structure, so that the first feed port of the heating box can be selectively opened by the lifting unit in the lifting process, and the heating box is convenient to operate and high in practicability due to the structural unit.

2. When the invention works, the first feed inlet of the heating box is opened under the action of the lifting unit, the torch flower root slices to be extracted are put into the heating box, covering the cover plate, positioning the torch flower root piece in the space enclosed by the bearing plate, the two extrusion plates and the front and back side walls of the heating box, and because the bearing plate and the two extrusion plates are both provided with sieve pores, therefore, after the solvent is added through the first water pipe, the heating box is heated without influencing the decoction of the torch flower root slices, meanwhile, the lifting plate is stirred under the action of the first sleeve, the decoction efficiency is accelerated, after the decoction is finished, the lifting rod drives the lifting plate to move upwards, the fifth guide inclined planes at the left end and the right end of the lifting plate are in sliding contact with the sixth guide inclined planes of the hinged plate in the upward moving stroke of the lifting plate and push the second push rod through the sliding plate, thereby pushing the first rotating rod to rotate around the rotating pin through the second sliding rod and the sliding sleeve, pushing the two extrusion plates to oppositely slide on the upper end surface of the bearing plate through the first sliding rod, the first sliding block, the second push plate and the third sliding rod, thereby extruding the root pieces of the torch flower and extruding the extracting solution to ensure that the effective components in the root pieces of the torch flower are extracted more thoroughly, meanwhile, a first discharging channel of the heating box is opened under the action of the first L-shaped push rod, extracting solution is discharged, the lifting plate continues to move upwards after extrusion is finished, the fifth guide inclined plane is separated from the sixth guide inclined plane, the extrusion plate resets, thereby driving the bearing plate to move up to the first switch plate while moving the cover plate up, pushing the extruded fire-holder flower root pieces out of the heating box through the first push plate and the first push plate to enter the collecting box, and then new torch flower root pieces can be added from the first feeding hole again, so that the extraction is more thorough, the manual operation is reduced, and the working efficiency is high.

3. When a third push plate drives a moving box placed on the upper end face of the moving box to be positioned between two fourth slide bars under the action of a second air cylinder, and one end of each of the two fourth slide bars, which is fixedly provided with a first baffle, is in contact with the front side wall and the rear side wall of the moving box respectively, is a first station, namely an initial position, when the moving box is clamped between the two placing rods under the action of two rotating columns, the moving box is a second station, when the third push plate drives the moving box to vertically move downwards under the action of a second air cylinder, two rotating columns of the moving box are clamped in U-shaped grooves of two fixing plates respectively, the moving box is a third station, when the two fixing plates drive the moving box to move to a second clamping groove on the rotating columns through transmission and the second clamping block is clamped, the moving box is a fourth station, when the two fixing plates drive the moving box to move to the upper end face of the fourth push plate through transmission, the fifth station is a filter cloth, and when the moving box is positioned at the first station and the third station, the filter cloth is just positioned between a discharge hole of the heating box and a feed inlet of a fine filter box;

when one movable box is located at a first station and the other movable box is located at a second station, the filter cloth on the movable box at the first station is unfolded under the action of a fifth sliding rod and a fifth sleeve, a first discharge pipeline of an extraction liquid cylinder of the heating box discharges the filter cloth and filters the filter cloth for the first time, the first filtrate passes through the filter paper on a filter plate in the fine filter box and is filtered for the second time under the action of a piston box and a piston plate, so that impurities and mucilage in the extraction liquid are removed more thoroughly, the yield of the prepared extract is higher, and when the filter cloth filters at an initial position, the cam is driven by a second motor, so that the movable box is driven by a fourth sliding rod to reciprocate under the action of a fourth spring, the filter cloth is driven to reciprocate, the risk of filter cloth blockage is reduced, and the filtering efficiency is improved.

4. When filter residues on the filter cloth at the first station are too much and the filtering speed is reduced, the third push plate drives the moving box to vertically move downwards under the action of the second air cylinder, so that the moving box is positioned at the third station, meanwhile, the telescopic end of the third air cylinder extends out to push the fifth push plate to slide along the guide sliding groove to move the other moving box positioned at the second station to the first station, so that the two filter cloths are overlapped in the vertical direction, then the telescopic end of the fourth air cylinder on the moving box at the third station retracts, the two fifth sleeves move in the direction in which the second through groove is close to each other under the action of the hinge rod and simultaneously drive the fifth sliding rod to move, the fifth sliding rod slides in the fifth sleeve under the action of the reset of the fifth spring, so that the filter cloths are folded, the lower end of the folded filter cloth falls between the first roller and the second roller under the action of gravity, the telescopic end of the fifth air cylinder extends out to push the second roller to move in the direction in which the first roller is close to the first roller, thereby the first roller and the second roller extrude the furled filter cloth, then the conveying drives the moving box at the third station to move to the fourth station through the fixed plate, simultaneously the furled filter cloth is pulled out of the fine filtering box, the extruded first filtrate falls on the filter paper for secondary filtering, when the moving box is positioned at the fourth station, the second motor drives the second rotating rod to clamp the moving box through the second clamping block and the second clamping groove to drive the moving box to turn over for 90 degrees, the telescopic end of the fourth cylinder extends out and causes the filter cloth to be unfolded again under the action of the limiting block, so that the filter residue extruded on the filter cloth falls in the filter residue box, then the second rotating rod drives the moving box to turn over and reset, simultaneously the third push plate moves upwards under the action of the second cylinder, so that the other moving box is positioned at the upper end surface of the third cylinder, then the telescopic end of the third cylinder retracts to drive the fifth push plate to be positioned at the left end of the second clamping groove, meanwhile, the conveying device drives the movable box to continuously drive the movable box to move from the fourth station to the fifth station through the fixed plate, after the movable box is located on the upper end face of the fourth push plate, the movable box moves to the second station under the action of the second cylinder, and then the telescopic end of the third cylinder extends out to enable the movable box to be located between two placing rods, so that the rotating column is clamped above the two placing rods, and the placing rods clamp the movable box.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

FIG. 3 is an enlarged view of B of FIG. 2 according to the present invention.

FIG. 4 is an enlarged view of C of FIG. 2 according to the present invention.

Fig. 5 is a top view of the cover plate of the present invention.

FIG. 6 is an enlarged view of A of FIG. 5 according to the present invention.

Fig. 7 is a schematic structural diagram of the first switch plate and the first compression spring according to the present invention.

Fig. 8 is a schematic structural view of the lifting unit of the present invention.

Fig. 9 is a schematic structural view of the compression plate of the present invention.

Fig. 10 is a schematic structural view of the first vertical plate of the present invention.

FIG. 11 is a schematic structural diagram of a first rotating rod, a first sliding rod, a second sliding rod, and a third sliding rod according to the present invention.

Fig. 12 is a schematic structural view of the first to fifth stations of the present invention.

Fig. 13 is a schematic structural diagram of the second vertical plate of the present invention.

FIG. 14 is a schematic view of the structure of the filter cloth and the movable box of the present invention.

FIG. 15 is a schematic view of a fifth slide bar, a fifth sleeve, according to the present invention.

Fig. 16 is a schematic view of the structure of the conveyor belt of the present invention.

In the figure:

1-heating a box; 2-cover plate; 3-a first switch plate; 4-a first pressure spring; 5-a first push plate; 6-a first push rod; 7-a second switch plate; 8-a first L-shaped push rod; 9-a collection box; 10-solvent tank; 11-L-shaped vertical plates; 12-a locking lever; 13-a first triangular block; 14-a first spring; 15-a first stopper; 16-a first card slot; 17-a limiting rod; 18-a first fixture block; 19-a second triangular block; 20-a second spring; 21-a second stopper; 22-a through hole; 23-a first cylinder; 24-a lifter; 25-a locking block; 26-a first sleeve; 27-a first bevel gear set; 28-a first motor; 29-a lifter plate; 30-a second L-shaped push rod; 31-locking holes; 32-a stripper plate; 33-a first riser; 34-a first T-shaped through slot; 35-a first T-shaped slide; 36-a bearing plate; 37-a second T-shaped channel; 38-a second T-shaped slide; 39-a slide plate; 40-hinged plate; 41-a second push rod; 42-a second pressure spring; 43-a support plate; 44-a first through slot; 45-a first rotating rod; 46-a sliding sleeve; 47-a first slide bar; 48-a second slide bar; 49-a third spring; 50-a second push plate; 51-a third slide bar; 52-a third T-shaped through slot; 53-third T-shaped slider; 54-an exhaust pipe; 55-a second latch; 56-a second riser; 57-a conveyor belt; 58-a second sleeve; 59-a first belt; 60-a second motor; 61-fixing plate; 62-a third push plate; 63-a fourth push plate; 64-a second cylinder; 65-a guide chute; 66-a fifth push plate; 67-a third cylinder; 68-placing the rod; 69-a fourth slide bar; 70-a fourth spring; 71-a filter residue box; 72-a third sleeve; 73-a second rotating rod; 74-a second belt; 75-a second bevel gear set; 76-a fourth sleeve; 77-a third rotating rod; 78-a cam; 79-moving box; 80-rotating columns; 81-a second card slot; 82-a second through slot; 83-a fifth sleeve; 84-a hinged lever; 85-a first retaining clip; 86-a fourth cylinder; 87-limiting plate; 88-a third triangular block; 89-a fifth slide bar; 90-a second retaining clip; 91-a fifth spring; 92-filter cloth; 93-a fine filtering box; 94-a first drum; 95-sixth pusher plate; 96-a second drum; 97-fifth cylinder; 98-a filter plate; 99-piston case; 100-sixth cylinder.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In addition, an element described herein as being "secured to" or "disposed on" another element may be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

As shown in fig. 1-16, in the embodiment of the present invention, a filtering apparatus for preparing extract of herba pyrrosiae root slice comprises a heating unit, an extrusion unit for extruding decocted herba pyrrosiae root slice, a lifting unit, an exhaust unit for releasing pressure and exhausting air, a coarse filtering unit, a fine filtering unit;

In the embodiment of the invention, the heating unit comprises a heating box 1, an opening at the upper end of the heating box 1 is a first feed inlet, a cover plate 2 capable of lifting up and down is arranged at the opening, the cover plate 2 can be locked with a telescopic end of a lifting unit arranged on a first mounting plate through a locking structure, an extrusion unit is arranged on the lower end surface of the cover plate, the heating box 1 is arranged on the upper end surface of a second mounting plate, a window is arranged at the upper end of the rear side wall of the heating box 1, a first switch plate 3 used for sealing the window is hinged on the rear side wall of the heating box 1, a first pressure spring 4 used for resetting is arranged at the hinged position, a first push plate 5 corresponding to the window is movably embedded on the front side wall of the heating box 1, a first push rod 6 is fixed on the side wall of the first push plate 5 far away from the window, one end of the first push rod 6 far away from the first push plate 5 penetrates through the front side wall of the heating box 1 in a sliding mode and is fixed with a handle, a first discharge pipeline is communicated on a bottom plate of the heating box 1, one end of the first discharge pipeline, which penetrates through a second switch plate 7 and is fixed on a transverse rod 8, and a rough-discharge chute is arranged on the first transverse rod 8, and is connected with a rough-discharge unit, and a rough-discharge chute, which is arranged on the first transverse rod 8, and is arranged along the direction of the first transverse rod;

a collecting box 9 for recovering residues is fixed on the upper end face of the second mounting plate, and the upper end of the collecting box 9 is opened and is positioned below a window on the rear side wall of the heating box 1;

a solvent tank 10 for containing a solvent for preparing the extract is further fixed on the upper end face of the second mounting plate, a water pump is mounted on the solvent tank 10, a water inlet of the water pump is communicated with a water outlet of the solvent tank 10 through a first water pipe, and a water outlet of the water pump is communicated with a water inlet of the heating tank 1 through a second water pipe;

when the first feed inlet of heating cabinet 1 is opened to needs, thereby it opens to move up through lift unit drive apron 2 and move up its first feed inlet, throw the torch flower root piece that needs to draw into heating cabinet 1 from first feed inlet, cover the apron, the water pump passes through first water pipe, the solvent of second water pipe in with solvent case 10 is arranged into heating cabinet 1, heating cabinet 1 carries out the decocte extraction to torch flower root piece, after extracting, open second switch board 7, the extract is discharged from first ejection of compact pipeline, the extrusion unit extrudees torch flower root piece simultaneously, then push out heating cabinet 1 through first push pedal 5 with the torch flower root piece after the extrusion from the window and fall into collecting box 9, then can throw into new torch flower root piece that needs to draw from first feed inlet again.

In the embodiment of the invention, the locking structure comprises two L-shaped vertical plates 11 which are symmetrical about the center of the cover plate 2 and fixed on the upper end surface of the cover plate 2, and the vertical plates of the two L-shaped vertical plates 11 are parallel to each other and arranged along the left-right direction;

the transverse plates of the two L-shaped vertical plates 11 are parallel to each other and are arranged in the front-back direction, locking rods 12 are arranged on the opposite surfaces of the two vertical plates in a sliding mode along the left-right direction, the two locking rods 12 are arranged oppositely, the ends, close to the two locking rods 12, of the two locking rods are both arranged into circular arcs, first triangular blocks 13 are fixed at the ends, far away from the two locking rods 12, first springs 14 are sleeved on the outer walls of the two locking rods 12, one ends of the first springs 14 are fixed on the side walls of the vertical plates, the other ends of the first springs are fixed on the first triangular blocks 13, first limiting blocks 15 are further fixed on the outer walls of the two locking rods 12, the two first limiting blocks 15 are symmetrical about the center of the cover plate 2, the side walls, close to the transverse plates, of the two first limiting blocks are arranged into first guide inclined planes, first clamping grooves 16 are formed in the side walls, far away from the ends, provided with the circular arcs, and are located at the lower positions of the first guide inclined planes;

limiting rods 17 are arranged on the opposite surfaces of the two vertical plates in a sliding mode along the front-back direction, first clamping blocks 18 clamped with the first clamping grooves 16 in a sliding mode are fixed at one ends, close to the locking rods 12, of the two limiting rods 17, second triangular blocks 19 are fixed at the other ends of the two limiting rods 17, the side walls, close to the first limiting blocks 15, of the two first clamping blocks 18 are respectively provided with second guide inclined planes in sliding fit with the first guide inclined planes, second springs 20 are sleeved on the outer walls of the two limiting rods 17, one ends of the second springs 20 are fixed on the vertical plates, and the other ends of the second springs 20 are fixed on the second triangular blocks 19;

second limiting blocks 21 are fixed on the upper end surfaces of the left side wall and the right side wall of the heating box 1, the two second limiting blocks 21 are arranged oppositely, the upper end surfaces of the two second limiting blocks 21 are respectively provided with a third guide inclined surface in sliding fit with the inclined surface of the first triangular block 13, and through holes 22 in sliding fit with the first triangular block 13 are formed in the opposite surfaces of the two second limiting blocks 21;

in the embodiment of the present invention, the lifting unit includes a first cylinder 23 installed on an upper end surface of a first mounting plate, a telescopic end of the first cylinder 23 extends and retracts in an up-down direction and is fixed with a first connecting plate, a lower end surface of the first connecting plate is rotatably connected with an upper end of a lifting rod 24, a lower end of the lifting rod 24 is fixed on an upper end surface of a locking block 25, and an outer wall of the lifting rod is slidably sleeved with a first sleeve 26, the first sleeve 26 is rotatably installed on the first mounting plate, an outer wall of the first sleeve is in transmission connection with an output shaft of a first motor 28 installed on the upper end surface of the first mounting plate through a first bevel gear set 27, the lower end surface of the locking block 25 slidably penetrates through the cover plate 2 and is fixed with a lifting plate 29, a length direction of the lifting plate 29 is in a left-right direction, front and rear side walls of the lifting plate are respectively fixed with second L-shaped push rods 30, cross rods of the two second L-shaped push rods 30 are fixed on side walls of the lifting plate 29, one end of the lifting plate, which is far away from a cross rod, and is provided with a fourth guide, and can slidably penetrate through the inclined plane of a triangular plate 2 and slidably fit with an inclined plane of a left side wall and a right side wall of a vertical rod 29, and a fifth guide rod;

the locking block 25 is positioned at the center of the cover plate 2, the left side wall and the right side wall of the locking block are provided with through locking holes 31, and the locking holes 31 can be clamped with one end of the locking rod 12 which is arranged to be circular arc in a sliding manner;

when the two locking rods 12 are arranged into circular arcs, one ends of the two locking rods 12 are located in the locking holes 31 on the locking block 25, and the first spring 14 and the second spring 20 are in a compressed state, the cover plate 2 is fixed with the lifting end of the lifting rod 24, when the first feed inlet of the heating box 1 needs to be closed, the telescopic end of the first cylinder 23 retracts to drive the lifting rod 24 to slide in the first sleeve 26, so that the lifting rod 24 drives the cover plate 2 to move downwards, in the downward movement stroke, the inclined surface of the first triangular block 13 is in sliding fit with the third guide inclined surface of the second limiting block 21, so that the first triangular block 13 pushes the locking rods 12 to slide along the horizontal direction close to the locking block 25 while moving downwards, thereby continuously compressing the first spring 14 and driving the first limiting block 15 to move, the first clamping groove 16 on the first limiting block 15 is separated from the first clamping block 18, so that the first clamping block 18 horizontally moves away from the first limiting block 15 under the action of the reset of the second spring 20, when the cover plate 2 covers the upper end face of the heating box to close the first feed inlet, the inclined face of the first triangular block 13 is separated from the third guide inclined face of the second limiting block 21 and corresponds to the through hole 22, under the action of the reset of the first spring 14, the first triangular block 13 slides into the through hole 22, meanwhile, one end of the locking rod 12, which is set to be a circular arc, slides out of the locking hole 31, so that the cover plate 2 is separated from the lifting end of the lifting rod 24, the lifting rod 24 continuously moves downwards, and under the action of the first bevel gear set 27, the first motor 28 drives the first sleeve 26, the lifting rod 24 drives the lifting plate 29 to rotate in the heating box 1, so as to stir decoction;

when the first feed inlet of heating cabinet 1 needs to be opened, lifter 24 drives lifter 29 to move up, in the stroke of moving up, the montant that second L shape push rod 30 was provided with the fourth direction inclined plane slides and passes apron 2 and the inclined plane sliding contact of the three hornblocks 19 of second, thereby promote gag lever post 17 compression second spring 20, make the second direction inclined plane of first fixture block 18 and the first direction inclined plane contact of first stopper 15 and promote first stopper 15 horizontal migration, thereby drive check lock lever 12 to slide to the horizontal direction that leans on into lock block 25 and compress first spring 14, thereby make check lock lever 12 set up to the one end of circular arc slide into in the locking hole 31, first three hornblocks 13 roll-off through-holes 22 simultaneously, thereby apron 2 is fixed with the lift end of lifter 24.

In the embodiment of the present invention, the extrusion unit includes two extrusion plates 32 which are oppositely arranged and parallel to the left and right side walls of the heating box 1, two first vertical plates 33 which are oppositely arranged and parallel to the extrusion plates 32 are fixed on the lower end surface of the cover plate 2, first T-shaped through grooves 34 are formed on the lower end surfaces of the two first vertical plates 33 along the left and right direction, first T-shaped sliders 35 which are slidably engaged with the first T-shaped through grooves 34 are fixed on the upper end surfaces of the two extrusion plates 32, the lower end surfaces are slidably arranged on the upper end surface of the receiving plate 36, second T-shaped through grooves 37 are formed on the upper end surface of the receiving plate 36 along the left and right direction, second T-shaped sliders 38 which are slidably arranged in the second T-shaped through grooves 37 are fixed on the lower end surfaces of the two extrusion plates 32, a plurality of sieve holes are formed on the upper end surface of the receiving plate 36 and the opposite surfaces of the two extrusion plates 32, and the front and back side walls of the receiving plate 36 and the two extrusion plates 32 are respectively slidably attached to the front and back inner wall of the heating box 1;

the lifting plate 29 is positioned between the two first vertical plates 33, sliding plates 39 are arranged on the opposite surfaces of the two first vertical plates 33 in a sliding mode along the left-right direction, the ends, close to the two sliding plates 39, of the two first vertical plates 33 are positioned between the two first vertical plates 33, the lower end surfaces of the two sliding plates are hinged with hinged plates 40, the ends, far away from the hinged plates are fixed with second push rods 41, second pressure springs 42 for resetting are arranged at the hinged positions of the two hinged plates 40 and the sliding plates 39, the sliding plates 39 extend out of the ends, far away from the hinged points, of the hinged plates 40, the side walls of the hinged plates are set to be sixth guide inclined surfaces, and the sixth guide inclined surfaces of the two hinged plates 40 can be in sliding contact with fifth guide inclined surfaces at the left end and the right end of the lifting plate 29 respectively;

supporting plates 43 are fixed on the left outer wall and the right outer wall of the heating box 1, first through grooves 44 are formed in the upper end surfaces of the two supporting plates 43 along the left direction and the right direction, first sliding blocks are arranged in the two first through grooves 44 in a sliding mode, supporting rods are vertically fixed on the upper end surfaces of the two supporting plates 43, inclined first rotating rods 45 are arranged on the two supporting rods in a rotating mode through rotating pins, the rotary pin is located at the central position of the first rotary rod 45, one end of the two first rotary rods 45 close to the heating box 1 is sleeved with a sliding sleeve 46 in a sliding manner, one end of the two first rotary rods 45 far away from the heating box 1 is sleeved with a first sliding rod 47 in a sliding manner, the outer walls of the two sliding sleeves 46 are hinged with second sliding rods 48 respectively, one end of the two second sliding rods 48 far away from the sliding sleeve 46 slides respectively along the left and right directions to penetrate through the left and right side walls of the heating box 1 and contact with one ends of the two second push rods 41 far away from the sliding plate 39, the outer walls of the two second sliding rods 48 are sleeved with third springs 49 respectively, one end of the third spring 49 is fixed on the outer wall of the heating box 1, the other end is fixed on the outer wall of the sliding sleeve 46, one end of each of the two first sliding rods 47, which is far away from the first rotating rod 45, is hinged to the upper end faces of the two first sliding blocks, the lower end faces of the two first sliding blocks are both fixed with a second pushing plate 50, the side walls of the two second pushing plates 50 are both fixed with a third sliding rod 51, one ends of the two third sliding rods 51, which are far away from the second pushing plate 50, respectively slide through the left and right side walls of the heating box 1 along the left-right direction and are fixed with third T-shaped through grooves 52 which are arranged along the up-down direction, the side walls, which are far away from the two squeezing plates 32, are both fixed with third T-shaped sliding blocks 53 which are in sliding fit with the third T-shaped through grooves 52 along the up-down direction, the lower end face of one of the second push plates 50 is fixed with the vertical rod of the first L-shaped push rod 8;

when the extrusion plate 32 needs to be cleaned or removed, the extrusion plate 32 and the bearing plate 36 can be removed by sliding the extrusion plate 32 to separate the extrusion plate from the first vertical plate 33;

after the torch flower root pieces to be extracted are put into the heating box 1 from the first feeding hole, the torch flower root pieces are positioned in a space formed by the bearing plate 36, the two extrusion plates 32 and the front and rear side walls of the heating box 1, when the heating extraction is carried out, the lifting rod 24 drives the lifting plate 29 to be positioned in the space and stir and extract under the first sleeve 26, after the extraction is finished, the lifting rod 24 drives the lifting plate 29 to move upwards, fifth guide inclined planes at the left and right ends of the lifting plate 29 are in contact with a sixth guide inclined plane of the hinge plate 40 in the upward moving process and push the sliding plate 39 to slide, so that the second sliding rod 48 is pushed by the second push rod 41 to horizontally slide and stretch the third spring 49, the first rotating rod 45 is pushed by the sliding sleeve 46 to rotate by taking the rotating pin as the center, and the first sliding rod 47 which is slidably sleeved drives the first sliding block to slide in the first through groove 44 while the first rotating rod 45 rotates, thereby driving the second push plate 50 to push the third slide rod 51 to compress the return spring on the outer wall of the third slide rod 51, so that the third slide rod 51 pushes the two extrusion plates 32 to slide oppositely on the upper end surface of the bearing plate 36 through the third T-shaped through groove 52 and the third T-shaped sliding block 53 to extrude the torch flower root piece, meanwhile, the second switch plate 7 is opened under the action of the first L-shaped push rod 8, the extract is discharged, after the fifth guide inclined surfaces at the left and right ends of the lifting plate 29 are separated from the sixth guide inclined surface of the hinge plate 40, the extrusion plates 32 are reset, the first T-shaped sliding block 35 at the upper end surface is again in sliding clamping with the first T-shaped through groove 34 at the lower end surface of the first vertical plate 33, then the vertical rod of the second L-shaped push rod 30 provided with the fourth guide inclined surface slides through the cover plate 2 to be in sliding contact with the inclined surface of the second triangular block 19 so that the cover plate 2 is fixed with the lifting rod 24 in a telescopic way, so that the lifting rod 24 drives the cover plate 2 to open the first feed inlet of the heating box 1, and drives the bearing plate 36 to move upwards to the window to discharge the extruded torch flower root pieces.

In the embodiment of the present invention, the exhaust unit includes an exhaust pipe 54 installed on the side wall of the heating box 1 and communicated with the second discharge port of the heating box 1, an exhaust fan is installed at the feed port of the exhaust pipe 54, one end of the exhaust pipe 54 far away from the exhaust fan is communicated with the feed port of the solvent box 10, and a condensation pipe is further installed on the outer wall thereof.

In the embodiment of the present invention, the coarse filtration unit includes a plurality of filter cloth structures, two second vertical plates 56 fixed on the upper end surface of the third mounting plate and oppositely disposed, two mutually parallel conveyor belts 57 are disposed between the two second vertical plates 56, the two conveyor belts 57 are disposed along the left-right direction, the right ends of the two conveyor belts 57 are rotatably sleeved on the outer wall of the first rotating shaft, the left ends of the two conveyor belts are rotatably sleeved on the outer wall of the second rotating shaft, the two ends of the first rotating shaft and the second rotating shaft are rotatably disposed on the opposite surfaces of the two second vertical plates 56, and one end of the first rotating shaft is rotatably sleeved with the second sleeve 58, one end of the second sleeve 58 far away from the first rotating shaft is rotatably connected to the output shaft of the second motor 60 mounted on the upper end surface of the third mounting plate through the first belt 59, the upper end surfaces of the two conveyor belts 57 are both fixed with the fixed plate 61, the upper end surfaces of the two fixed plates 61 are both provided with U-shaped grooves, the third push plate 62 and the fourth push plate 63, the third push plate 63 and the fourth push plate 63 are fixed on the upper end surfaces of the two telescopic push plates 56, the cylinder guide cylinders, the two push plates 64 are disposed on the side walls of the two push plates 56, the cylinder guide grooves, the two push plates 64, the two push plates and the cylinder guide cylinders, the two push plates are fixed on the cylinder, the two push plates 64, the two push plates 56, the cylinder push plates 65, the cylinder guide grooves 64 are fixed on the two push plates, the cylinder guide grooves 64, the two push plates and the cylinder guide grooves 64, the two push plates 65, two placing rods 68 which are oppositely arranged and parallel to the length direction of the guide sliding groove 65 are fixed on the right side wall of the filter cloth structure, the third cylinder 67 is fixed on the left side walls of the two second vertical plates 56 through a fourth mounting plate, fourth sliding rods 69 are arranged on the opposite surfaces of the two second vertical plates 56 in a sliding mode along the front-back direction, the two fourth sliding rods 69 are oppositely arranged and located right above the third push plate 62, a first baffle plate is fixed at one end close to the fourth sliding rods 69, one end far away from the fourth sliding rods respectively penetrates through the adjacent second vertical plates 56 in a sliding mode, fourth springs 70 are sleeved on the outer walls of the two fourth sliding rods 69, one end of each fourth spring 70 is fixed on the first baffle plate, the other end of each fourth spring is fixed on the side wall of the second vertical plate 56, and the filter cloth structures are driven by the fifth push plate 66, the third push plate 62, the conveyor belt 57 and the fourth push plate 63 in sequence to move circularly along a rectangular track;

a slag filtering box 71 is mounted on the lower end face of the third mounting plate, the upper end of the slag filtering box 71 is open and penetrates through the third mounting plate to be located between the two second air cylinders 64, a third sleeve 72 is rotatably mounted on the side wall of one of the second vertical plates 56, one end of the third sleeve 72 is rotatably sleeved with a second rotating rod 73, one end, far away from the third sleeve 72, of the second rotating rod 73 is located between the two second vertical plates 56 and is fixed with a second clamping block 55, the other end of the third sleeve 72 penetrates through the second vertical plate 56 to be in transmission connection with an output shaft of the second motor 60 through a second belt 74, the output shaft of the second motor 60 is further in transmission connection with one end of a fourth sleeve 76 through a second bevel gear set 75, a third rotating rod 77 is rotatably sleeved at the other end of the fourth sleeve 76, a cam 78 is fixed at one end, far away from the fourth sleeve 76, and a protruding portion of the cam 78 is in sliding contact with one end, far away from the fourth sliding rod 69, of the second vertical plate 56, of the adjacent fourth sliding rod 69;

in the embodiment of the invention, the filter cloth structure comprises a moving box 79, wherein rotating columns 80 are fixed on the front side wall and the rear side wall of the moving box 79, one end, far away from the moving box 79, of one rotating column 80 is provided with a second clamping groove 81 in sliding clamping with a second clamping block 55, the right side wall of the moving box 79 is provided with a second through groove 82 along the front-rear direction, the second through groove 82 is provided with two fifth sleeves 83 which are oppositely arranged in a sliding manner, the left ends of the two fifth sleeves 83 are positioned in the moving box 79 and hinged with a hinged rod 84, the right ends of the two fifth sleeves 83 are positioned on the outer wall of the moving box 79 and respectively fixed with a first fixing clamp 85 through a fixing rod, one ends, far away from the fifth sleeves 83, of the two hinged rods 84 are hinged with the telescopic end of a fourth cylinder 86, the telescopic end of the fourth cylinder 86 is also fixed with a limiting plate 87 for limiting the hinged rod 84, and the fourth cylinder 86 is fixed on the upper end surface of the moving box 79;

two third triangular blocks 88 which are oppositely arranged are fixed in the moving box 79, fifth sliding rods 89 are slidably sleeved in the fifth sleeves 83, the left ends of the fifth sliding rods 89, which extend out in a sliding manner, of the fifth sliding rods 89 are located in the moving box 79 and are respectively provided with a seventh guide inclined surface which is in sliding fit with the inclined surfaces of the third triangular blocks 88, the right ends of the other ends of the fifth sliding rods 89, which extend out in a sliding manner, are located outside the moving box 79 and are respectively and fixedly provided with second fixing clamps 90 through fixing rods, fifth springs 91 are sleeved on the outer walls of the fifth sliding rods 89, one ends of the fifth springs 91 are fixed at the right ends of the fifth sliding rods 89, the other ends of the fifth springs are fixed on second stop blocks on the outer walls of the fifth sliding rods 89, filter cloth 92 is detachably clamped between the fifth sliding rods 89 through the two first fixing clamps 85 and the two second fixing clamps 90, and when the moving box 79 is located right above the third push plate 62, the filter cloth 92 is located right below the first discharge pipeline and is located right above the feed inlet of the fine filter unit;

when the telescopic end of the fourth cylinder 86 extends out, the two fifth sliding rods 89 are far away from each other, one end, fixed with the second fixing clamp 90, of the two fifth sliding rods 89 is far away from the first fixing clamp 85, the fifth spring 91 is in a stretching state, the filter cloth 92 is in a stretching state, when the telescopic end of the fourth cylinder 86 retracts, the two fifth sliding rods 89 are close to each other, one end, fixed with the second fixing clamp 90, of the two fifth sliding rods 89 is close to the first fixing clamp 85, and the filter cloth 92 is in a folding state;

when the third push plate 62 drives the moving box 79 placed on the upper end surface thereof to be positioned between the two fourth sliding rods 69 under the action of the second air cylinder 64, and one end of the two fourth sliding rods 69, which is fixed with the first baffle, is in contact with the front side wall and the rear side wall of the moving box 79 respectively, a first station is formed;

the second station when the mobile box 79 is clamped between the two placing rods 68 by the action of the two rotary columns 80;

when the third push plate 62 drives the moving box 79 to move vertically downwards under the action of the second air cylinder 64, the third station is formed when the two rotating columns 80 of the moving box 79 are respectively clamped in the U-shaped grooves of the two fixed plates 61;

when the two fixed plates 61 drive the moving box 79 to move to the second clamping groove 81 on one of the rotating columns 80 to be clamped with the second clamping block 55 on the second rotating rod 73 under the action of the conveyor belt 57, the fourth station is formed;

when the two fixed plates 61 drive the movable box 79 to move from the fourth station to the upper end face of the fourth push plate 63 under the action of the conveyor belt 57, the fifth station is set;

the fourth push plate 63 can drive the moving box 79 placed on the upper end surface of the fourth push plate to vertically move upwards to a second station under the action of the second air cylinder 64, and when the second station is in the first station, the fifth push plate 66 drives the two placing rods 68 to horizontally move towards the direction close to the first station under the action of the third air cylinder 67, so that the two placing rods 68 are clamped on the front side and the rear side of the moving box 79, and meanwhile, the two rotating columns 80 are positioned above the two placing rods 68 for limiting, so that the fifth push plate 66 can drive the moving box 79 while horizontally moving towards the direction close to the first station;

when the movable box 79 is located at the first station and the third station, the filter cloth 92 is just located between the discharge port of the heating box 1 and the feed port of the fine filter box 93;

when the device works, when one movable box 79 is positioned at a first station and the other movable box 79 is positioned at a second station, the filter cloth 92 on the movable box 79 at the first station is in an unfolded state, the extracting solution of the heating box 1 is discharged from the first discharging pipeline and is filtered for the first time through the filter cloth 92, the first filtrate falls into the fine filter box 93 for secondary fine filtration, so that impurities and mucilage in the extracting solution are removed more completely, the yield of the prepared extractum is higher, when the filter cloth 92 is filtered at the initial position, the cam 78 drives the fourth slide bar 69 to drive the movable box 79 to reciprocate under the action of the fourth spring 70, when the filtering speed of the filter cloth 92 at the first station is reduced, the third push plate 62 drives the movable box 79 to move downwards to the third station, meanwhile, the third cylinder 67 extends out of the fifth push plate 66 to move the other moving box 79 located at the second station to the first station, so that the two moving boxes 79 are overlapped in the vertical direction, then the telescopic end of the fourth cylinder 86 on the moving box 79 at the third station retracts to gather the filter cloth 92, the lower end of the gathered filter cloth 92 falls between the first roller 94 and the second roller 96 under the action of gravity, the fifth cylinder 97 pushes the sixth push plate 95 to enable the second roller 96 to move towards the direction close to the first roller 94, so that the first roller 94 and the second roller 96 squeeze the gathered filter cloth 92, the conveyor belt 57 drives the second roller to move to the fourth station, the second rotating rod rotates to drive the moving boxes to turn over for 90 degrees through the clamping of the second clamping block and the second clamping groove, and the filter cloth 92 is re-unfolded, so that filter residues squeezed on the filter cloth fall into the filter residue box 71.

In the embodiment of the present invention, the fine filtering unit includes a fine filtering box 93 mounted directly above a third mounting plate, the upper end of the fine filtering box 93 is open and located directly below the first discharging pipeline, a first roller 94 is rotatably mounted at the opening position of the fine filtering box 93 through a third rotating shaft, the first roller 94 is arranged along the front-back direction in the length direction and located at the left end of the fine filtering box 93, a sixth push plate 95 is slidably disposed in the fine filtering box 93, front and back side walls of the sixth push plate 95 are respectively slidably disposed in third sliding grooves formed in front and back side walls of the fine filtering box 93 through a third slider, a second roller 96 parallel to the first roller 94 is rotatably disposed on a lower end surface of the sixth push plate 95 through a fourth rotating shaft, a right side wall of the sixth push plate 95 is fixed at an extensible end of a fifth cylinder 97, the fifth cylinder 97 is fixed on the right side wall of the fine filtering box 93 through a fifth mounting plate, a filtering plate 98 for placing filter paper is further arranged in the fine filtering box 93, the filtering plate 98 is positioned below the first roller 94 and the second roller 96, the bottom plate of the fine filtering box 93 is communicated with a feeding hole of a piston box 99 arranged on the lower end face of the third mounting plate through a second discharging pipeline, a piston plate is movably arranged in the piston box 99 and fixed with the telescopic end of a sixth cylinder 100 arranged on the outer wall of the piston box 99 through a piston rod, a discharging hole of the piston box 99 is communicated with a second feeding hole of the heating box 1 through a third water pipe, one-way valves are respectively arranged on the second discharging pipeline and the third water pipe, and a control valve for controlling the opening and closing of the discharging hole of the third water pipe is further arranged on the piston box 99;

pressure difference is generated in the piston box 99 through the piston box 99 and the piston plate, the filtering speed of filter paper on the filter plate 98 is accelerated, meanwhile, the filtering speed is accelerated through primary filtering of the filter cloth 92, the using amount of the filter paper is reduced, meanwhile, the quality of extract is improved, the first mounting plate, the second mounting plate and the third mounting plate sequentially pass through the mounting frames from top to bottom to be fixed, and the rotating sleeve positions of the second sleeve 58, the third sleeve 72 and the fourth sleeve 76 are all provided with a selecting structure.

The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. But all changes which come within the scope of the invention are intended to be embraced therein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Claims

1. A filter device for preparing a extract of a root piece of a torch flower is characterized by comprising a heating unit, an extrusion unit for extruding decocted torch flower root pieces, a lifting unit, an exhaust unit for releasing pressure and exhausting, a rough filtering unit and a fine filtering unit;

the first discharge port of the heating unit corresponds to the feed port of the coarse filtering unit, the second discharge port corresponds to the feed port of the exhaust unit, the first feed port of the heating unit corresponds to the outside, the second feed port is communicated with the discharge port of the fine filtering unit, the third feed port is communicated with the discharge port of the exhaust unit, and the discharge port of the coarse filtering unit corresponds to the feed port of the fine filtering unit;

the heating unit comprises a heating box (1), the upper end opening of the heating box (1) is a first feeding hole, and the opening is provided with a cover plate (2) which can be lifted up and down, the cover plate (2) can be locked with the telescopic end of the lifting unit arranged on the first mounting plate through a locking structure, the lower end surface of the heating box is provided with an extrusion unit, the heating box (1) is arranged on the upper end surface of the second mounting plate, the upper end of the rear side wall of the heating box (1) is provided with a window, the rear side wall of the heating box (1) is hinged with a first switch plate (3) for sealing the window, a first pressure spring (4) for resetting is arranged at the hinged position, a first push plate (5) corresponding to the window is movably embedded on the front side wall of the heating box (1), a first push rod (6) is fixed on the side wall of the first push plate (5) far away from the window, one end of the first push rod (6) far away from the first push plate (5) slides out of the front side wall of the heating box (1) and is fixed with a handle, a first discharging pipeline is communicated with the bottom plate of the heating box (1), one end of the first discharging pipeline, which is far away from the heating box (1), penetrates through a second mounting plate to be in sliding fit with a second switch plate (7), the second switch board (7) is fixed on the cross bar of the first L-shaped push rod (8), one end, far away from the transverse rod, of a vertical rod of the first L-shaped push rod (8) slides through a first sliding groove formed in the second mounting plate in the left-right direction and is in transmission connection with the extrusion unit, and the first discharging pipeline is located right above a feeding hole of the coarse filtering unit;

a collecting box (9) for recovering residues is fixed on the upper end face of the second mounting plate, the upper end of the collecting box (9) is opened and is positioned below a window on the rear side wall of the heating box (1);

a solvent tank (10) for containing a solvent for preparing the extract is further fixed on the upper end face of the second mounting plate, a water pump is mounted on the solvent tank (10), a water inlet of the water pump is communicated with a water outlet of the solvent tank (10) through a first water pipe, and a water outlet of the water pump is communicated with a water inlet of the heating tank (1) through a second water pipe;

the locking structure comprises two L-shaped vertical plates (11) which are symmetrical with the center of the cover plate (2) and fixed on the upper end surface of the cover plate (2), and vertical plates of the two L-shaped vertical plates (11) are parallel to each other and are arranged along the left and right directions;

the transverse plates of the two L-shaped vertical plates (11) are parallel to each other and are arranged along the front-back direction, locking rods (12) are arranged on opposite surfaces of the two vertical plates in a sliding mode along the left-right direction, the two locking rods (12) are arranged oppositely, the ends close to the two locking rods are arranged into circular arcs, the ends far away from the two locking rods are fixed with first triangular blocks (13), first springs (14) are sleeved on the outer walls of the two locking rods (12), one ends of the first springs (14) are fixed on the side walls of the vertical plates, the other ends of the first springs are fixed on the first triangular blocks (13), first limiting blocks (15) are further fixed on the outer walls of the two locking rods (12), the two first limiting blocks (15) are symmetrical about the center of the cover plate (2), the side walls close to the transverse plates are arranged into first guide inclined surfaces, the side walls far away from the locking rods (12) and provided with the ends of the circular arcs are provided with first clamping grooves (16), and the first clamping grooves (16) are located at the lower positions of the first guide inclined surfaces;

limiting rods (17) are arranged on opposite surfaces of the two vertical plates in a sliding mode along the front-back direction, first clamping blocks (18) clamped with the first clamping grooves (16) in a sliding mode are fixed at one ends, close to the locking rods (12), of the two limiting rods (17), second triangular blocks (19) are fixed at the other ends of the two limiting rods, second guide inclined planes in sliding fit with the first guide inclined planes are arranged on side walls, close to the first limiting blocks (15), of the two first clamping blocks (18), second springs (20) are sleeved on outer walls of the two limiting rods (17), one ends of the second springs (20) are fixed on the vertical plates, and the other ends of the second springs (20) are fixed on the second triangular blocks (19);

second limiting blocks (21) are fixed on the upper end faces of the left side wall and the right side wall of the heating box (1), the two second limiting blocks (21) are arranged oppositely, the upper end faces of the two second limiting blocks are respectively provided with a third guide inclined face in sliding fit with the inclined face of the first triangular block (13), and through holes (22) in sliding fit with the first triangular block (13) are formed in the opposite faces of the two second limiting blocks (21);

the lifting unit comprises a first cylinder (23) arranged on the upper end face of a first mounting plate, the telescopic end of the first cylinder (23) stretches along the vertical direction and is fixed with a first connecting plate, the lower end face of the first connecting plate is rotatably connected with the upper end of a lifting rod (24), the lower end of the lifting rod (24) is fixed on the upper end face of a locking block (25), a first sleeve (26) is sleeved on the outer wall of the lifting rod in a sliding manner, the first sleeve (26) is rotatably arranged on the first mounting plate, the outer wall of the lifting rod is in transmission connection with an output shaft of a first motor (28) arranged on the upper end face of the first mounting plate through a first bevel gear set (27), the lower end face of the locking block (25) penetrates through the cover plate (2) in a sliding mode and is fixedly provided with a lifting plate (29), the length direction of the lifting plate (29) is along the left-right direction, second L-shaped push rods (30) are fixedly arranged on the front side wall and the rear side wall of the lifting plate respectively, cross rods of the two second L-shaped push rods (30) are fixedly arranged on the side walls of the lifting plate (29), one ends, far away from the cross rods, of vertical rods of the lifting plate are provided with fourth guide inclined planes and can penetrate through the cover plate (2) in a sliding mode to be matched with inclined planes of the second triangular block (19), and the side walls of the left end and the right end of the lifting plate (29) are respectively provided with fifth guide inclined planes;

the central point that is located apron (2) of locking piece (25) puts, has seted up through-going locking hole (31) on its left and right sides lateral wall, locking hole (31) can set up the one end slip block that is the circular arc with check lock lever (12).

2. The filtering device for preparing the extract of the root piece of the torch flower according to claim 1, wherein the extruding unit comprises two extruding plates (32) which are oppositely arranged and are parallel to the left and right side walls of the heating box (1), two first vertical plates (33) which are oppositely arranged and are parallel to the extruding plates (32) are fixed on the lower end surface of the cover plate (2), first T-shaped through grooves (34) are formed in the lower end surfaces of the two first vertical plates (33) along the left and right directions, first T-shaped sliding blocks (35) which are in sliding clamping with the first T-shaped through grooves (34) are fixed on the upper end surfaces of the two extruding plates (32), the lower end faces of the bearing plates (36) are arranged on the upper end faces of the bearing plates (36) in a sliding mode, second T-shaped through grooves (37) are formed in the upper end faces of the bearing plates (36) in the left-right direction, second T-shaped sliding blocks (38) arranged in the second T-shaped through grooves (37) in a sliding mode are fixed on the lower end faces of the two extrusion plates (32), a plurality of sieve holes are formed in the upper end faces of the bearing plates (36) and the opposite faces of the two extrusion plates (32), and the front side walls and the rear side walls of the bearing plates (36) and the two extrusion plates (32) are respectively attached to the front inner wall and the rear inner wall of the heating box (1) in a sliding mode;

the lifting plate (29) is positioned between the two first vertical plates (33), sliding plates (39) are arranged on the opposite surfaces of the two first vertical plates (33) in a sliding mode along the left-right direction, one ends, close to the two sliding plates (39), of the two sliding plates are positioned between the two first vertical plates (33), the lower end faces of the two sliding plates are hinged with hinged plates (40), the ends, far away from the hinged plates are fixed with second push rods (41), second pressure springs (42) for resetting are mounted at the hinged positions of the two hinged plates (40) and the sliding plates (39), one ends, far away from the hinged points, of the hinged plates extend out of the sliding plates (39), the side walls of the hinged plates are set to be sixth guide inclined planes, and the sixth guide inclined planes of the two hinged plates (40) can be in sliding contact with the fifth guide inclined planes at the left end and the right end of the lifting plate (29) respectively;

the heating box is characterized in that supporting plates (43) are fixed on the left outer wall and the right outer wall of the heating box (1), first through grooves (44) are formed in the upper end faces of the two supporting plates (43) along the left direction and the right direction, first sliding blocks are arranged in the first through grooves (44) in a sliding mode, supporting rods are vertically fixed on the upper end faces of the two supporting plates (43), two first rotating rods (45) with inclination are arranged on the supporting rods in a rotating mode, the rotating pins are located in the central positions of the first rotating rods (45), two sliding sleeves (46) are arranged at the ends, close to the heating box (1), of the first rotating rods (45) in a sliding mode, one end, far away from the heating box (1), of each sliding sleeve (47) is arranged at the center position of the corresponding rotating pin, two second sliding rods (48) are hinged to the outer walls of the second sliding rods (48), one end, far away from the sliding sleeves of the second sliding sleeves (46) from the sliding sleeves (48) along the left direction and the left direction, penetrates through the left side wall of the heating box (1) and the left side wall of the two second sliding rods (41) to keep away from the sliding sleeves, one end faces of the other sliding sleeves (49) of the first sliding sleeves (46), one end faces of the other springs are fixed on the outer wall of the first rotating rods (46), one end faces of the other end faces of the two springs (46) and the other end faces of the first rotating rods (47), one springs (46) which are fixed on the outer wall of the first rotating rods (49), one end faces of the second sliding sleeves, two the lower terminal surface of first slider all is fixed with second push pedal (50), two all be fixed with third slide bar (51), two on the lateral wall of second push pedal (50) one end that second push pedal (50) were kept away from in third slide bar (51) slides respectively along controlling the direction and pass lateral wall about heating cabinet (1) and be fixed with and follow third T shape logical groove (52) that the direction was seted up from top to bottom, two the lateral wall upper eye direction of keeping away from in stripper plate (32) all is fixed with and leads to third T shape slider (53) of logical groove (52) sliding fit with third T shape, one of them the lower terminal surface of second push pedal (50) is fixed with the montant of first L shape push rod (8).

3. The filtering device for preparing the extract of the root pieces of the torch flower according to claim 2, wherein the exhaust unit comprises an exhaust pipe (54) which is installed on the side wall of the heating box (1) and is communicated with the second discharge hole of the heating box (1), an exhaust fan is installed at the feed inlet of the exhaust pipe (54), one end of the exhaust pipe (54) far away from the exhaust fan is communicated with the feed inlet of the solvent box (10), and a condensation pipe is further arranged on the outer wall of the exhaust pipe.

4. The filtering device for preparing the extract of the root piece of the torch flower according to claim 1, wherein the coarse filtering unit comprises a plurality of filter cloth structures, two second vertical plates (56) which are fixed on the upper end surface of a third mounting plate and oppositely arranged, two mutually parallel conveyor belts (57) are arranged between the two second vertical plates (56), the lengths of the two conveyor belts (57) are arranged along the left and right directions, the right ends of the two conveyor belts (57) are rotatably sleeved on the outer wall of a first rotating shaft, the left ends of the two conveyor belts are rotatably sleeved on the outer wall of a second rotating shaft, the two ends of the first rotating shaft and the second rotating shaft are rotatably arranged on the opposite surfaces of the two second vertical plates (56), one end of the first rotating shaft is rotatably sleeved with a second sleeve (58), one end of the second sleeve (58) far away from the first rotating shaft rotatably penetrates through the adjacent second vertical plates (56) and is in transmission connection with an output shaft of a second motor (60) arranged on the upper end surface of the third mounting plate through a first belt (59), a fixed plate (61) is fixedly arranged on the upper end surface of the two adjacent second vertical plates (56), two push plates (57), two push plates (61) are fixedly arranged on the upper end surfaces of the two push plates (57), two push plates (62), two push plates are respectively fixed on the upper end surfaces of the four push plates, the four push plates (62) and the four push plates, the four push plates (57), the four cylinders (62) are respectively fixed on the four push plates (63), the four push plates (64) and the four push plates (63) and the four push plates, the four cylinders (64) are arranged on the four cylinders (64) and the four push plates, the four push plates are arranged on the four push plates, the four cylinders (57), the opposite surfaces of the two second vertical plates (56) are respectively provided with a guide sliding groove (65) along the length direction parallel to the conveyor belt (57), the two guide sliding grooves (65) are both positioned above the conveyor belt (57), a fifth push plate (66) is arranged between the two second vertical plates (56) in a sliding manner, the fifth push plate (66) is positioned above a fourth push plate (63), the front side wall and the rear side wall of the fifth push plate are respectively fixed with a second sliding block which is arranged in the two guide sliding grooves (65) in a sliding manner, the left side wall of the fifth push plate (66) is fixed at the telescopic end of a third air cylinder (67), the right side wall of the fifth push plate is fixed with two placing rods (68) which are oppositely arranged and are parallel to the length direction of the guide sliding grooves (65), the third air cylinder (67) is fixed on the left side walls of the two second vertical plates (56) through a fourth mounting plate, the opposite surfaces of the two second vertical plates (56) are respectively provided with a fourth sliding rod (69) in a sliding manner along the front and rear direction, the two fourth vertical plates (69) are oppositely arranged and positioned above the third push plate (62), one end of each vertical plate is fixed on the adjacent second sliding plate (56), one end of each second sliding plate is fixed on the adjacent baffle (70), the adjacent second sliding baffle (70), and the second baffle (70) is sleeved on the second baffle (70), the filter cloth structures are driven by a fifth push plate (66), a third push plate (62), a conveyor belt (57) and a fourth push plate (63) to circularly move in a rectangular track in sequence;

the lower end face of the third mounting plate is provided with a filter residue box (71), the upper end of the filter residue box (71) is opened and penetrates through the third mounting plate to be located between two second air cylinders (64), one of the second upright plates (56) is rotatably provided with a third sleeve (72), one end of the third sleeve (72) is rotatably sleeved with a second rotating rod (73), one end, far away from the third sleeve (72), of the second rotating rod (73) is located between the two second upright plates (56) and is fixedly provided with a second clamping block (55), the other end of the third sleeve (72) penetrates through the second upright plate (56) to be in transmission connection with an output shaft of a second motor (60) through a second belt (74), an output shaft of the second motor (60) is further in transmission connection with one end of a fourth sleeve (76) through a gear set (75), the other end of the fourth sleeve (76) is rotatably sleeved with a third rotating rod (77), one end, far away from the fourth sleeve (76), of the third rotating rod (77) is fixedly provided with a cam (78), and one end of the second sliding protrusion (69) of the cam (78) which is in contact with a sliding protrusion part of the fourth sliding plate (56).

5. The filter device for preparing the extract of the root piece of the torch flower according to claim 4, wherein the filter cloth structure comprises a moving box (79), the front and rear side walls of the moving box (79) are respectively fixed with a rotating column (80), one end of one rotating column (80) far away from the moving box (79) is provided with a second clamping groove (81) which is in sliding clamping with a second clamping block (55), the right side wall of the moving box (79) is provided with a second through groove (82) along the front and rear direction, the second through groove (82) is internally provided with two oppositely arranged fifth sleeves (83) in a sliding manner, the left ends of the two fifth sleeves (83) along the left and right direction are respectively positioned in the moving box (79) and hinged with a hinged rod (84), the right ends of the two fifth sleeves (83) are respectively positioned on the outer wall of the moving box (79) and are respectively fixed with a first fixing clamp (85) through fixing rods, one ends of the two hinged rods (84) far away from the fifth sleeves (83) are respectively hinged with a telescopic end of a fourth cylinder (86), the telescopic end of the fourth cylinder (86) is further fixed with a limiting plate (86), and a moving plate (79) is fixed on the moving box (79);

the filter cloth feeding mechanism is characterized in that two third triangular blocks (88) which are oppositely arranged are fixed in the movable box (79), a fifth sliding rod (89) is sleeved in each fifth sleeve (83) in a sliding mode, one end of each fifth sliding rod (89) slidably extends out of the left end of each fifth sliding rod (89), the left end of each fifth sliding rod is located in the movable box (79) and is provided with a seventh guide inclined surface in sliding fit with inclined surfaces of the two third triangular blocks (88), the other end of each fifth sliding rod (89) slidably extends out of the right end of each fifth sliding rod and is fixed with a second fixing clamp (90) through a fixing rod, a fifth spring (91) is sleeved on the outer wall of each fifth sliding rod (89), one end of each fifth spring (91) is fixed at the right end of each fifth sliding rod (89), the other end of each fifth spring is fixed on the second fixing clamp on the outer wall of each fifth sliding rod (89), two filter cloth (92) is detachably clamped between the fifth sliding rods (89) through two first fixing clamps (85) and the two second fixing clamps (90), when the movable box (79) is located above a third push plate (62), and a feed inlet is located above a fine filter cloth, and a feed outlet unit is located above a fine filter cloth.

6. The filter device for preparing the extract of the root piece of Ficus glomerata, according to claim 5, wherein the fine filter unit comprises a fine filter box (93) installed directly above a third mounting plate, the upper end of the fine filter box (93) is open and located directly below a first discharge pipeline, a first roller (94) is rotatably installed at the open position of the fine filter box (93) through a third rotating shaft, the length direction of the first roller (94) is arranged along the front and rear direction and located at the left end of the fine filter box (93), a sixth push plate (95) is slidably installed in the fine filter box (93), the front and rear side walls of the sixth push plate (95) are respectively slidably installed in third sliding grooves formed in the front and rear side walls of the fine filter box (93) through a third sliding block, the lower end surface of the sixth push plate (95) is rotatably installed through a fourth rotating shaft with a second roller (96) parallel to the first roller (94), the right side wall of the sixth push plate (95) is fixed to a fifth cylinder (97), the right side wall of the fifth push plate (95) is fixed to a second roller (96) through a telescopic cylinder (97) installed in the fine filter box (93), the right end plate (98) of the fine filter box (93), the fine filter box (93) is installed in the second cylinder (98), and a second cylinder (98) is installed in the fine filter box (99) through a telescopic cylinder (93) for placing plate (99), the filter plate, the filter box (93), piston case (99) internalization is provided with the piston board, the piston board is fixed with the flexible end of installing sixth cylinder (100) on piston case (99) outer wall through the piston rod, the discharge gate of piston case (99) passes through the second feed inlet intercommunication of third water pipe and heating cabinet (1), all install the check valve on second ejection of compact pipeline, the third water pipe, still install the control valve of control third water pipe discharge gate switch on piston case (99).