Extraction device for preparing ampelopsis grossedentata

By designing the extraction device for rattan tea, including crushing, unblocking and removal mechanisms, the problem of low efficiency of existing rattan tea extraction methods is solved, and the effective extract of effective ingredients in rattan tea is achieved, and the production efficiency and the quality of extracts are improved.

CN119869668AInactive Publication Date: 2025-04-25ENSHI FENGMING RATTAN TEA CO LTD
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Patent Information

Application Number
CN202510227983.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-04-25
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing vine tea extraction methods are inefficient, and traditional solvent extraction methods require a long time and high solvent dosage, and active ingredients such as dihydrobaumen and flavonoids are present in the cells, making it difficult to extract effectively.

Method used

An extraction device for the preparation of rattan tea is designed, including a crushing box, a crushing mechanism, a dredging mechanism and a removal mechanism. The crushing mechanism crushes the dried vine tea through relatively rotating crushing cylinders and crushing pieces. The dredging mechanism realizes the feeding and unblocking of the vine tea in the hopper through the movable blocks and elastic telescopic rods. The cleaning mechanism removes the vine tea powder on the crushing cylinder through the rotating rods and bristles.

Benefits of technology

The specific surface area of ​​the vine tea is increased through the crushing treatment, the permeability efficiency of the solvent is improved, the extraction time is shortened, the production efficiency is improved, and the extraction rate of active ingredients is improved, reducing component residues caused by cell wall obstruction.

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Abstract

The invention relates to the technical field of ampelopsis grossedentata processing, and discloses an extraction device for preparing ampelopsis grossedentata, which comprises a crushing box, and also comprises: a discharge hopper fixedly connected to the bottom of the crushing box and used for discharging crushed ampelopsis grossedentata; the feeding hopper is fixedly connected to the top of the crushing box and used for feeding materials into the crushing box; the support is fixedly connected to the bottom of the crushing box; the crushing mechanism is arranged on the inner wall of the crushing box and is used for crushing the ampelopsis grossedentata; and the dredging mechanism is arranged in the feeding hopper. According to the ampelopsis grossedentata smashing device, through the arranged smashing device, dried ampelopsis grossedentata can be smashed through smashing cylinders and smashing blocks which rotate relatively, so that the smashed ampelopsis grossedentata is collected in a centralized mode, meanwhile, two movable rotating shafts and two movable sliding bases move on sliding rods, the distance between the smashing cylinders can be changed, and therefore the ampelopsis grossedentata can be smashed. Therefore, the requirements of different ampelopsis grossedentata raw materials and crushing degrees are met, the crushing effect is further improved, and different use requirements are met.
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Description

Technical Field

[0001] The invention relates to the technical field of rattan tea processing, in particular to an extraction device for preparing rattan tea. Background Art

[0002] Ampelopsis grossedentata extraction usually refers to the process of extracting active ingredients from the tender stems and leaves of Ampelopsis grossedentata. Ampelopsis grossedentata is a traditional medicinal and edible plant, and its main ingredients include dihydromyricetin (DHM), flavonoids, polyphenols, etc., which have multiple biological activities such as antioxidant, antibacterial, and hypoglycemic.

[0003] At present, the effective components of rattan tea are mainly extracted by traditional solvent extraction methods, such as ethanol extraction, water extraction and alcohol precipitation. Although these methods can extract some effective components, there are also some problems: low extraction efficiency, traditional extraction methods usually require a long time and a high amount of solvent, and the extraction efficiency is low. For example, the main active ingredients in rattan tea, such as dihydromyricetin and flavonoids, are usually present in cells. In order to increase the specific surface area of ​​the medicinal material and make it easier for the solvent to penetrate into the plant cells, an extraction device for preparing rattan tea is needed to solve the above-mentioned problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an extraction device for preparing rattan tea in view of the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an extraction device for preparing rattan tea, comprising a crushing box, and also comprising:

[0006] A discharge hopper, fixedly connected to the bottom of the crushing box, for discharging the crushed rattan tea;

[0007] A feed hopper, fixedly connected to the top of the crushing box, for feeding materials into the crushing box;

[0008] A support, fixedly connected to the bottom of the crushing box;

[0009] A crushing mechanism, arranged on the inner wall of the crushing box, for crushing rattan tea;

[0010] A dredging mechanism is arranged in the feed hopper and is used to move up and down to dredge the feed hopper;

[0011] A cleaning mechanism is arranged inside the pulverizing box and below the pulverizing mechanism, and is used to clean the rattan tea powder attached to the pulverizing mechanism;

[0012] A filter is arranged on the inner wall of the crushing box and is used to separate the rattan tea residue;

[0013] Wherein, the crushing mechanism comprises:

[0014] A plurality of sliding holes are respectively provided on the front and back sides of the inner wall of the crushing box, and the sliding holes on the front side of the crushing box are closed;

[0015] A plurality of sliding blocks are respectively slidably connected to the inner wall of the sliding hole;

[0016] Two rotating shafts are rotatably connected to the sliders at the front and rear sides through bearings, and the back side of the rotating shafts movably passes through the sliders and extends backwards;

[0017] Two crushing cylinders are respectively fixedly sleeved on the outer wall of the rotating shaft and are used to crush rattan tea when rotating relative to each other;

[0018] A plurality of crushing blocks are connected to the outer wall of the crushing tube at equal intervals, and the crushing blocks on the two crushing tubes are axially staggered and arranged for crushing rattan tea.

[0019] Preferably, the pulverizing mechanism comprises:

[0020] Two slide bars are fixedly connected to the back of the crushing box and are located at the upper and lower sides of the slide hole;

[0021] Two slide seats are respectively slidably connected to the outer walls of the two slide bars, and a motor is fixedly connected to the slide seats, and the output end of the motor movably passes through the slide seats and is connected to the extended end of the rotating shaft, so as to drive the rotating shaft to rotate;

[0022] Two elliptical plates are fixedly sleeved on the extended end of the outer wall of the rotating shaft, and the back side of the crushing box is fixedly connected with two limit blocks which are symmetrically arranged on the left and right, and the outer wall of the limit block is in contact with the outer wall of the elliptical plate, and the side where the limit block is in contact with the elliptical plate is arranged in an arc shape.

[0023] Preferably, the dredging mechanism comprises:

[0024] Two movable blocks, the inner wall of the crushing box is provided with sliding grooves on both sides, and the movable blocks are slidably connected to the inner wall of the crushing box;

[0025] A plurality of elastic telescopic rods are respectively installed between the movable block and the crushing box, and are used to push the movable block to move toward one side of the crushing cylinder and fit with the crushing block.

[0026] Preferably, the dredging mechanism further comprises:

[0027] The arc-shaped groove is bilaterally symmetrical and is provided on the front and back of the crushing box; through holes are provided at both ends of the arc-shaped groove and penetrate the arc-shaped groove; a plurality of rollers are movably connected to the inner wall of the arc-shaped groove and are located and moved in the arc-shaped groove;

[0028] A plurality of connecting rods, both ends of which are respectively fixedly connected to the movable block and the roller exposed from the lower through hole, for pushing the roller to move upward in the arc groove;

[0029] Two dredging rods are respectively fixedly connected to rollers exposed from the upper through holes and are used for moving up and down to stir the rattan tea in the feed hopper.

[0030] Preferably, baffles are installed at both ends of the outer wall of the dredging rod, and the baffles are fitted with the inner wall of the crushing box to cover the through hole;

[0031] Two connecting plates are fixedly connected to the outer wall of the rotating shaft and are respectively located at the front and rear sides of the grinding cylinder;

[0032] One side of the connecting plate is fixedly connected with a first protrusion, the arc-shaped inner wall of the movable block is fixedly connected with a second protrusion, and the first protrusion is fitted with the second protrusion.

[0033] Preferably, the cleaning mechanism comprises:

[0034] A rotating rod is rotatably connected to the inner wall of the crushing box, and the back side of the rotating rod movably penetrates the crushing box and extends backward;

[0035] Brush bristles are installed on the outer wall of the rotating rod and are used to clean the outer wall of the grinding cylinder.

[0036] Preferably, the cleaning mechanism further comprises:

[0037] A rotating disk, fixedly connected to the back extension end of the rotating rod;

[0038] A circular rod fixedly connected to the back of the turntable;

[0039] A sliding sleeve is slidably connected to the outer wall of the circular rod, and movable rods are fixedly connected to both sides of the outer wall of the sliding sleeve;

[0040] Two fixing seats are fixedly connected to the back of the crushing box, and the movable rod slides in the fixing seats;

[0041] Two connecting rods are respectively fixedly connected between the movable rod and the sliding seat.

[0042] Preferably, a residue discharge hole is opened on the right side of the inner wall of the crushing box, and the filter is installed obliquely on the inner wall of the crushing box, with the left side higher than the right side.

[0043] The present invention adopts the above technical solution to bring the following beneficial effects:

[0044] 1. The extraction device for preparing rattan tea can use the relatively rotating crushing cylinder and crushing block to crush the dried rattan tea through the crushing device, so that the crushed rattan tea can be collected in a centralized manner. At the same time, the spacing between the crushing cylinders will change through the movement of two movable rotating shafts and the sliding seat on the sliding rod, so as to adapt to different rattan tea raw materials and crushing degree requirements, thereby further improving the crushing effect to meet different usage requirements. The contact area between the crushed rattan tea and the solvent is increased, and the mass transfer resistance in the extraction process is reduced. Therefore, the extraction can be completed in a shorter time, thereby improving production efficiency.

[0045] 2. The extraction device for preparing rattan tea, through the set dredging mechanism, utilizes the upper part of the set movable block to produce movement relative to the feed hopper, so that the rattan tea located in the feed hopper can be pushed to the middle to achieve feeding, improve the feeding effect and promote the crushing of the rattan tea. At the same time, the up and down movement of the two dredging rods can push the rattan tea located in the feed hopper downward to achieve dredging and promote the feeding of the rattan tea, so as to facilitate the crushing mechanism to crush the rattan tea.

[0046] 3. The extraction device for preparing rattan tea, through the cleaning mechanism, uses the bristles on the rotating rod to contact the grinding cylinder, so that the rattan tea powder attached to the outer wall of the grinding cylinder can be brushed off, thereby improving the cleaning effect, so that the rattan tea can be crushed conveniently. At the same time, the rotating rod can be rotated, so that the bristles can be further rotated to brush the grinding cylinder, further improving the cleaning effect of the grinding cylinder, so as to achieve a better crushing effect during crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0048] Figure 2 It is a schematic diagram of the back structure of the present invention;

[0049] Figure 3 Schematic diagram of the explosion structure of the present invention Figure 1 ;

[0050] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0051] Figure 5 Schematic diagram of the explosion structure of the present invention Figure 2 ;

[0052] Figure 6 For the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0053] Figure 7 It is a schematic diagram of the partial structure of the crushing mechanism of the present invention;

[0054] Figure 8 It is a schematic diagram of the explosion structure of the dredging mechanism of the present invention.

[0055] In the figure: 1. crushing box; 2. discharge hopper; 3. support; 4. feed hopper; 5. crushing mechanism; 51. rotating shaft; 52. crushing cylinder; 53. crushing block; 54. slider; 55. slide seat; 56. slide rod; 57. elliptical plate; 58. limit block; 59. slide hole; 6. dredging mechanism; 61. movable block; 62. arc groove; 63. connecting rod; 64. connecting plate; 65. protrusion one; 66. elastic telescopic rod; 67. protrusion two; 68. roller; 69. dredging rod; 7. cleaning mechanism; 71. rotating rod; 72. bristles; 73. connecting rod; 74. turntable; 75. round rod; 76. sliding sleeve; 77. movable rod; 78. fixed seat; 8. filter. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] See also Figure 1-8 One embodiment of the present invention is: an extraction device for preparing rattan tea, comprising a crushing box 1, and also comprising:

[0058] A discharge hopper 2 is fixedly connected to the bottom of the crushing box 1 and is used for discharging the crushed rattan tea;

[0059] A feed hopper 4 is fixedly connected to the top of the crushing box 1 and is used to feed materials into the crushing box 1;

[0060] A support 3 is fixedly connected to the bottom of the crushing box 1;

[0061] A crushing mechanism 5 is arranged on the inner wall of the crushing box 1 and is used for crushing rattan tea;

[0062] A dredging mechanism 6 is disposed in the feed hopper 4 and is used to move up and down to dredge the feed hopper 4;

[0063] The cleaning mechanism 7 is arranged inside the crushing box 1 and below the crushing mechanism 5, and is used to clean the rattan tea powder attached to the crushing mechanism 5;

[0064] The filter 8 is arranged on the inner wall of the crushing box 1 and is used to separate the rattan tea residue;

[0065] Wherein, the crushing mechanism 5 comprises:

[0066] A plurality of sliding holes 59 are respectively provided on the front and back sides of the inner wall of the crushing box 1, and the sliding holes 59 on the front side of the crushing box 1 are closed;

[0067] A plurality of slide blocks 54 are slidably connected to the inner walls of the slide holes 59 respectively;

[0068] Two rotating shafts 51 are rotatably connected to the sliders 54 at the front and rear sides through bearings, and the back side of the rotating shaft 51 movably passes through the slider 54 and extends backward;

[0069] Two grinding cylinders 52 are respectively fixedly sleeved on the outer wall of the rotating shaft 51 and are used to grind rattan tea when rotating relative to each other;

[0070] A plurality of crushing blocks 53 are connected to the outer wall of the crushing tube 52 at equal intervals, and the crushing blocks 53 on the two crushing tubes 52 are axially staggered for crushing rattan tea.

[0071] The crushing mechanism 5 comprises:

[0072] Two slide bars 56 are fixedly connected to the back of the crushing box 1 and are located at the upper and lower sides of the slide hole 59;

[0073] Two slide seats 55 are slidably connected to the outer walls of the two slide bars 56, and a motor is fixedly connected to the slide seats 55, and the output end of the motor movably passes through the slide seats 55 and is connected to the extended end of the rotating shaft 51, so as to drive the rotating shaft 51 to rotate;

[0074] Two elliptical plates 57 are fixedly sleeved on the extended end of the outer wall of the rotating shaft 51, and the back of the crushing box 1 is fixedly connected to two limit blocks 58 symmetrically arranged on the left and right, and the outer wall of the limit block 58 is in contact with the outer wall of the elliptical plate 57, and the side where the limit block 58 is in contact with the elliptical plate 57 is arranged in an arc shape.

[0075] Working principle: When the dried rattan tea is crushed, the rattan tea is placed in the feed hopper 4, and then the two motors are started to rotate. At this time, the two motors rotate in opposite directions, which will drive the rotating shaft 51 to rotate. The rotating shaft 51 rotates, and then drives the crushing cylinder 52 and the crushing blocks 53 on its outer wall to rotate. The crushing blocks are rotated and staggered continuously, so that the rattan tea dropped from the feed hopper 4 can be crushed to improve the crushing effect. The crushing process can significantly increase the specific surface area with the medicinal material, making it easier for the solvent to penetrate into the plant cells, thereby accelerating the dissolution of the effective ingredients;

[0076] At the same time, when the rotating shaft 51 rotates, the elliptical plate 57 on its outer wall rotates and will collide with the limit block 58. Since the two elliptical plates 57 contact the limit block 58 at the same interval, a left and right pushing effect will be produced. At this time, the entire rotating shaft 51, the slide seat 55 and the motor will be pushed to slide on the slide rod 56 through the friction. At this time, the distance between the crushing barrels 52 located in the crushing box 1 will change, so as to adapt to different rattan tea raw materials and crushing degree requirements and improve the crushing effect. At the same time, the contact area between the crushed rattan tea and the solvent is increased, and the mass transfer resistance in the extraction process is reduced. Therefore, the extraction can be completed in a shorter time, thereby improving production efficiency. The crushing process helps to improve the extraction rate of effective ingredients and reduce the residual ingredients caused by cell wall obstruction, thereby improving the yield and quality of the extract.

[0077] See also Figure 1-8 On the basis of the above embodiment, in another embodiment of the present invention, the dredging mechanism 6 comprises:

[0078] Two movable blocks 61, the inner wall of the crushing box 1 is provided with sliding grooves on both sides, and the movable blocks 61 are slidably connected to the inner wall of the crushing box 1;

[0079] A plurality of elastic telescopic rods 66 are respectively installed between the movable block 61 and the crushing box 1 , and are used to push the movable block 61 to move toward the crushing cylinder 52 and fit with the crushing block 53 .

[0080] The dredging mechanism 6 also includes:

[0081] The arc groove 62 is symmetrical and is provided on the front and back of the crushing box 1; through holes are provided at both ends of the arc groove 62 and penetrate the arc groove 62; a plurality of rollers 68 are movably connected to the inner wall of the arc groove 62 and are located and moved in the arc groove 62;

[0082] A plurality of connecting rods 63, both ends of which are respectively fixedly connected to the movable block 61 and the roller 68 exposed from the through hole below, for pushing the roller 68 to move upward in the arc groove 62;

[0083] Two dredging rods 69 are respectively fixedly connected to the rollers 68 exposed from the upper through holes, and are used to move the rattan tea in the feed hopper 4 up and down.

[0084] Baffles are installed at both ends of the outer wall of the dredging rod 69, and the baffles are fitted with the inner wall of the crushing box 1 to cover the through hole;

[0085] Two connecting plates 64 are fixedly connected to the outer wall of the rotating shaft 51 and are respectively located at the front and rear sides of the grinding cylinder 52;

[0086] One side of the connecting plate 64 is fixedly connected with a first protrusion 65 , and the arc-shaped inner wall of the movable block 61 is fixedly connected with a second protrusion 67 , and the first protrusion 65 fits with the second protrusion 67 .

[0087] Working principle: When the crushing barrel 52 moves left and right, it will squeeze the movable block 61, and with the cooperation of the elastic telescopic rod 61, the movable block 61 inside the crushing box 1 will move left and right. At this time, the upper part of the movable block 61 will move relative to the feed hopper 4, so that the rattan tea in the feed hopper 4 can be moved to the middle to realize feeding, improve the feeding effect and promote the crushing of the rattan tea;

[0088] At the same time, when the protrusion 1 65 and the protrusion 2 67 are rotated alternately and squeezed when in contact, the movable block 61 can be squeezed, and the squeezing of the movable block 61 by the crushing cylinder 52 can increase the reset stroke of the movable block 61;

[0089] At the same time, when the movable block 61 moves left and right, it will drive the connecting rod 63 to move, and when it moves on the straight section side of the arc groove 62, it will push the roller 68 located inside it to move, thereby pushing multiple rollers 68 to move in the arc groove 62, thereby pushing the roller 68 equipped with the dredging rod 69 upward, and then the dredging rod 69 moves downward when there is no force, thereby generating the up and down movement of the dredging rod 69. Through the up and down movement of the two dredging rods 69, the rattan tea in the feed hopper 4 can be pushed downward to achieve dredging and promote the feeding of rattan tea, so as to facilitate the crushing of the rattan tea by the crushing mechanism 5.

[0090] See also Figure 1-8 Based on the above embodiment, in another embodiment of the present invention, the cleaning mechanism 7 includes:

[0091] The rotating rod 71 is rotatably connected to the inner wall of the crushing box 1, and the back side of the rotating rod 71 movably penetrates the crushing box 1 and extends backward;

[0092] The brush 72 is installed on the outer wall of the rotating rod 71 and is used to clean the outer wall of the grinding cylinder 52.

[0093] The cleaning mechanism 7 also includes:

[0094] The rotating disk 74 is fixedly connected to the back extension end of the rotating rod 71;

[0095] A circular rod 75 is fixedly connected to the back of the rotating disk 74;

[0096] The sliding sleeve 76 is slidably connected to the outer wall of the circular rod 75, and the outer wall of the sliding sleeve 76 is fixedly connected to the movable rods 77 on both sides;

[0097] Two fixed seats 78 are fixedly connected to the back of the crushing box 1, and the movable rod 77 slides in the fixed seats 78;

[0098] The two connecting rods 73 are fixedly connected between the movable rod 77 and the sliding seat 55 respectively.

[0099] A residue discharge hole is provided on the right side of the inner wall of the crushing box 1, and the filter 8 is obliquely installed on the inner wall of the crushing box 1, with the left side higher than the right side.

[0100] Working principle: When crushing rattan tea, the bristles 72 on the rotating rod 71 installed in the crushing box 1 contact the crushing cylinder 52 and the crushing block 53, and through the continuous rotation of the crushing cylinder 52, the rattan tea powder attached to the outer wall of the crushing cylinder 52 is brushed off by the bristles 72, thereby improving the cleaning effect, so that the rattan tea can be crushed conveniently and the crushing effect can be improved. At the same time, when the slide seat 55 moves left and right, it pushes the movable rod 77 to slide on the fixed seat 78 through the connecting rod 73, at which time it will drive the sliding sleeve 76 to move, and the sliding sleeve 76 moves back and forth horizontally, which can drive the center rod 75 to move on the sliding sleeve 76, so that the rotating disk 74 of the circular rod 75 is driven to rotate, thereby driving the rotating disk 74 and the rotating rod 71 to rotate, and the rotating rotating rod 71 and the bristles 72 can further improve the brushing effect of the crushing cylinder 52, thereby improving the crushing effect of the crushing cylinder 52 during crushing.

[0101] The present invention provides an extraction device for preparing rattan tea. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. An extraction device for preparing rattan tea, comprising a crushing box (1), characterized in that: Also includes: A discharge hopper (2) is fixedly connected to the bottom of the crushing box (1) and is used for discharging the crushed rattan tea; A feed hopper (4) fixedly connected to the top of the crushing box (1) and used for feeding materials into the crushing box (1); A support (3) fixedly connected to the bottom of the crushing box (1); A crushing mechanism (5), arranged on the inner wall of the crushing box (1), for crushing rattan tea; A dredging mechanism (6) is arranged in the feed hopper (4) and is used to move up and down to dredge the feed hopper (4); A cleaning mechanism (7) is arranged inside the pulverizing box (1) and below the pulverizing mechanism (5), and is used to clean the rattan tea powder attached to the pulverizing mechanism (5); A filter (8) is arranged on the inner wall of the crushing box (1) and is used to separate the rattan tea residue; Wherein, the pulverizing mechanism (5) comprises: A plurality of sliding holes (59) are respectively provided on the front and back sides of the inner wall of the crushing box (1), and the sliding holes (59) on the front side of the crushing box (1) are closed; A plurality of sliding blocks (54) are respectively slidably connected to the inner wall of the sliding hole (59); Two rotating shafts (51) are rotatably connected to the sliders (54) at the front and rear sides respectively through bearings, and the back side of the rotating shaft (51) movably passes through the slider (54) and extends backward; Two grinding cylinders (52) are respectively fixedly sleeved on the outer wall of the rotating shaft (51) and are used to grind rattan tea when rotating relative to each other; A plurality of crushing blocks (53) are connected to the outer wall of the crushing tube (52) at equal intervals, and the crushing blocks (53) on the two crushing tubes (52) are axially staggered and used for crushing rattan tea.

2. The extraction device for preparing rattan tea according to claim 1, characterized in that: The pulverizing mechanism (5) comprises: Two slide bars (56) are fixedly connected to the back of the crushing box (1) and are located at the upper and lower sides of the slide hole (59); Two slide seats (55) are respectively slidably connected to the outer walls of the two slide bars (56), and a motor is fixedly connected to the slide seats (55), and the output end of the motor movably passes through the slide seats (55) and is connected to the extended end of the rotating shaft (51), so as to drive the rotating shaft (51) to rotate; Two elliptical plates (57) are fixedly sleeved on the extended end of the outer wall of the rotating shaft (51); the back side of the crushing box (1) is fixedly connected with two left-right symmetrically arranged limit blocks (58); the outer wall of the limit block (58) is in contact with the outer wall of the elliptical plate (57); and the side of the limit block (58) in contact with the elliptical plate (57) is arranged in an arc shape.

3. The extraction device for preparing rattan tea according to claim 2, characterized in that: The dredging mechanism (6) comprises: Two movable blocks (61), the inner wall of the crushing box (1) is provided with sliding grooves on both sides, and the movable blocks (61) are slidably connected to the inner wall of the crushing box (1); A plurality of elastic telescopic rods (66) are respectively installed between the movable block (61) and the crushing box (1) and are used to push the movable block (61) to move toward one side of the crushing cylinder (52) and fit with the crushing block (53).

4. The extraction device for preparing rattan tea according to claim 3, characterized in that: The dredging mechanism (6) further comprises: The arc-shaped groove (62) is symmetrical and is provided on the front and back of the crushing box (1); through holes are provided at both ends of the arc-shaped groove (62) and penetrate the arc-shaped groove (62); a plurality of rollers (68) are movably connected to the inner wall of the arc-shaped groove (62) and are located and moved in the arc-shaped groove (62); A plurality of connecting rods (63), both ends of which are respectively fixedly connected to the movable block (61) and the roller (68) exposed from the lower through hole, and are used to push the roller (68) to move upward in the arc groove (62); Two dredging rods (69) are respectively fixedly connected to the rollers (68) exposed from the upper through holes and are used to move the rattan tea in the feed hopper (4) up and down.

5. The extraction device for preparing rattan tea according to claim 4, characterized in that: Baffles are respectively installed at both ends of the outer wall of the dredging rod (69), and the baffles are in contact with the inner wall of the crushing box (1) to cover the through hole; Two connecting plates (64) are fixedly connected to the outer wall of the rotating shaft (51) and are respectively located at the front and rear sides of the grinding cylinder (52); One side of the connecting plate (64) is fixedly connected with a protrusion 1 (65), and the arc-shaped inner wall of the movable block (61) is fixedly connected with a protrusion 2 (67), and the protrusion 1 (65) is fitted with the protrusion 2 (67).

6. The extraction device for preparing rattan tea according to claim 5, characterized in that: The cleaning mechanism (7) comprises: A rotating rod (71) is rotatably connected to the inner wall of the crushing box (1), and the back side of the rotating rod (71) movably penetrates the crushing box (1) and extends backward; Brush hair (72) is installed on the outer wall of the rotating rod (71) and is used to clean the outer wall of the grinding cylinder (52).

7. The extraction device for preparing rattan tea according to claim 6, characterized in that: The cleaning mechanism (7) further comprises: A rotating disk (74) is fixedly connected to the rear extension end of the rotating rod (71); A circular rod (75) fixedly connected to the back of the rotating disk (74); A sliding sleeve (76) is slidably connected to the outer wall of the circular rod (75), and movable rods (77) are fixedly connected to both sides of the outer wall of the sliding sleeve (76); Two fixed seats (78) are fixedly connected to the back of the crushing box (1), and the movable rod (77) slides in the fixed seats (78); The two connecting rods (73) are respectively fixedly connected between the movable rod (77) and the sliding seat (55).

8. The extraction device for preparing rattan tea according to claim 7, characterized in that: A residue discharge hole is provided on the right side of the inner wall of the crushing box (1), and the filter screen (8) is installed obliquely on the inner wall of the crushing box (1), with the left side higher than the right side.