Equipment for extracting cream from milk
By designing a milk cream extracting equipment with the function of changing the milk temperature and automatic cleaning, the problem of manually cleaning of the butter on the mixing shaft in the existing equipment needs to be manually cleaned, which improves the convenience and efficiency of the equipment and reduces users labor burden.
Patent Information
- Application Number
- CN202411525439.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-06-17
- Filing Date
- 2024-10-30
- Publication Date
- 2025-02-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
After the existing milk cream extraction buttercream equipment is stirred, a large amount of cream is also adhered to the stirring shaft, which needs to be manually cleaned, which takes a long time, affects the convenience of use, and requires multiple refrigeration, resulting in a large labor burden.
A milk cream butter equipment is designed, which has the function of changing the milk temperature in the pot, reducing operating steps, improving the effectiveness and convenience of use, and automatically cleaning the mixing connecting rod through automatic cleaning structure, reducing the labor burden of users.
It effectively reduces operating steps, improves the use effect and convenience of the extraction mixer, reduces the time for manual cleaning, and reduces the labor burden of users.
Smart Images
Figure CN119385070A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of making cream, in particular to a device for extracting cream from milk. Background Art
[0002] When using milk to extract cream, it is necessary to first pour the milk into a pot and heat it, then add an appropriate amount of sugar, and continuously stir it with an extraction mixer to dissolve the sugar, then put the milk in a refrigerator for refrigeration, and stir the milk again after refrigeration, and repeat this process many times until the milk becomes thick and forms soft peaks, thus completing the extraction of the cream. However, after the existing extraction mixer is stirred, a large amount of cream still adheres to the stirring shaft, and the stirring shaft needs to be manually cleaned, which takes a long time and affects the convenience of using the extraction mixer. In addition, during the process of extracting the cream, the milk needs to be refrigerated many times, which causes the user to clean the stirring shaft many times, resulting in a heavy labor burden for the user and affecting the use effect of the extraction mixer. Summary of the invention
[0003] The present invention introduces a device for extracting cream from milk. The device has the function of changing the temperature of the milk in the pot, so that there is no need to repeatedly transfer the cream extraction pot, which effectively reduces the operation steps. This not only improves the use effect and convenience of the extraction mixer, but also enhances the uniformity of mixing white sugar and milk. It is worth mentioning that the device realizes automatic cleaning of the stirring connecting rod. In the past, manual cleaning of cream was not only troublesome, but also took a lot of time, but the present invention successfully solved this problem and greatly reduced the labor burden of users.
[0004] The present invention provides a purpose and effect of a milk fat and cream extraction device, which specifically includes: a supporting base, a mobile installation box, a positioning bracket, an electric push rod, a cream extraction pot, a positioning structure, an eccentric turntable, a temperature adjustment structure, a connecting shaft, a feeding structure, a stirring structure, a cleaning structure and a positioning mounting seat; the mobile installation box is slidably connected to the upper part of the supporting base up and down; the positioning bracket is welded on the right side of the supporting base; two electric push rods are provided, and the two electric push rods are respectively bolted to the front and rear sides of the mobile installation box, and the piston rods of the two electric push rods are fixedly connected to the positioning bracket; the cream extraction pot is placed on the left side of the supporting base; the positioning structure is arranged above the supporting base; the eccentric turntable is rotatably connected to the left side of the mobile installation box; the temperature adjustment structure is arranged on the inner side of the cream extraction pot; the connecting shaft is rotatably connected to the lower part of the eccentric turntable; the feeding structure is arranged at the lower part of the eccentric turntable; the stirring structure is arranged below the connecting shaft; the cleaning structure is arranged above the positioning bracket; and the positioning mounting seat is welded on the right side of the positioning bracket. The feeding structure includes a guide mounting frame, a guide slide groove and a first discharge through hole; the guide mounting frame is welded to the lower part of the eccentric turntable; the guide slide groove is arranged on the upper part of the guide mounting frame; the first discharge through hole is arranged on the lower part of the guide mounting frame.
[0005] Furthermore, the feeding structure also includes a storage box, a driven rack and an incomplete gear; the driven rack is slidably connected to the inner side of the guide slot; the storage box is fixedly connected to the right side of the driven rack; the incomplete gear is fixedly connected to the upper part of the connecting shaft. The feeding structure also includes a second discharge hole, a second reset elastic member and a positioning guide rod; the second discharge hole is opened at the lower part of the storage box; the driven rack is elastically connected to the guide mounting frame through the second reset elastic member; the positioning guide rod is fixedly connected to the lower part of the connecting shaft.
[0006] Further, the stirring structure includes a sliding mounting plate, a first mounting seat, a stirring connecting rod and a limiting circular plate; the sliding mounting plate is key-connected to the upper part of the positioning guide rod; the first mounting seat is provided with a plurality of first mounting seats, and a plurality of first mounting seats are fixedly connected to the lower part of the sliding mounting plate in a circular array; the stirring connecting rod is provided with a plurality of groups, each group of stirring connecting rods is composed of two mutually hinged circular rods, and a plurality of groups of stirring connecting rods are respectively hinged to the lower part of a plurality of first mounting seats; the limiting circular plate is fixedly connected to the middle part of the positioning guide rod. The stirring structure also includes a third reset elastic member, a fixed mounting plate and a second mounting seat; the sliding mounting plate is elastically connected to the limiting circular plate through the third reset elastic member; the fixed mounting plate is fixedly connected to the lower end surface of the positioning guide rod; the second mounting seat is provided with a plurality of second mounting seats, and a plurality of second mounting seats are fixedly connected to the upper part of the fixed mounting plate in a circular array, and a plurality of second mounting seats are respectively hinged to a plurality of groups of stirring connecting rods.
[0007] Furthermore, the cleaning structure includes a guide sleeve, a connecting slide bar, a fourth reset elastic member and a cleaning scraper ring; the guide sleeve is hinged on the upper part of the positioning mounting seat; the connecting slide bar is slidably connected to the inner side of the guide sleeve; the connecting slide bar is elastically connected to the guide sleeve through the fourth reset elastic member; the cleaning scraper ring is hinged on the left side of the connecting slide bar; the cleaning scraper ring is sleeved on the outer side of the sliding mounting plate. The positioning structure includes a positioning suction plate, a positioning sliding plate and a sliding positioning shaft; four positioning suction plates are provided, and the four positioning suction plates are evenly distributed and fixedly connected to the lower part of the support base; two sliding positioning shafts are provided, and the two sliding positioning shafts are respectively slidably connected to the front and rear sides of the positioning bracket; two positioning sliding plates are provided, and the two positioning sliding plates are respectively fixedly connected to the lower parts of the two sliding positioning shafts.
[0008] Furthermore, the positioning structure also includes a first reset elastic member, a pot body positioning plate and a pot body positioning hole; two first reset elastic members are provided, and the two positioning sliding plates are elastically connected to the positioning bracket through the two first reset elastic members; two pot body positioning plates are provided, and the two pot body positioning plates are respectively welded to the front and rear sides of the cream extraction pot; two pot body positioning holes are provided, and the two pot body positioning holes are respectively opened on the upper parts of the two pot body positioning plates. The temperature control structure includes a temperature control water pipe, a water pipe connecting tube and an extraction pot inner layer; the temperature control water pipe is provided on the inner side of the cream extraction pot; two water pipe connecting tubes are provided, and the two water pipe connecting tubes are respectively rotatably connected to the front and rear sides of the temperature control water pipe; the extraction pot inner layer is welded to the inner side of the cream extraction pot.
[0009] Beneficial Effects
[0010] The temperature of the milk in the pot is changed by adding water of different temperatures into the temperature regulating water pipe, which effectively avoids the inconvenience of repeatedly transferring the cream extraction pot, reduces the operation steps, and improves the use effect of the extraction mixer. When the cream extraction pot is moved, the sliding positioning shaft can be automatically moved out, which is convenient for removing the cream extraction pot, avoiding the inconvenience of repeatedly disassembling and assembling the positioning shaft when the cream extraction pot is fixed with the positioning shaft, and effectively improves the convenience of use of the extraction mixer. The automatic addition of small amounts of white sugar multiple times is achieved through the rotation of the eccentric turntable and the connecting shaft, which ensures the melting speed of the white sugar and effectively improves the mixing uniformity of the white sugar and milk. The stirring connecting rod is cleaned by cleaning the scraper ring, which effectively avoids the inconvenience of manually cleaning the cream, saves a lot of time, and reduces the labor burden of the user. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.
[0012] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.
[0013] In the attached picture:
[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0015] Figure 2 It is a schematic diagram of the positions of the eccentric rotating disk and the connecting rotating shaft of the present invention.
[0016] Figure 3 It is a schematic diagram of the installation position of the incomplete gear and the guide mounting frame of the present invention.
[0017] Figure 4 It is a schematic diagram of the disassembled structure of the positioning bracket and the positioning sliding plate of the present invention.
[0018] Figure 5 It is a schematic diagram of the split structure of the cream extraction pot and the inner layer of the extraction pot of the present invention.
[0019] Figure 6 It is a schematic diagram of the disassembled structure of the guide mounting frame and the storage box of the present invention.
[0020] Figure 7 It is a schematic diagram of the split structure of the guide casing and the connecting slide rod of the present invention.
[0021] Figure 8 It is a schematic diagram of the position of the first mounting seat of the present invention.
[0022] Reference numerals list
[0023] 1. Support base; 101. Positioning suction plate; 2. Mobile installation box; 3. Positioning bracket; 301. Positioning sliding plate; 302. Sliding positioning shaft; 303. First resetting elastic member; 4. Electric push rod; 5. Cream extraction pot; 501. Pot body positioning plate; 502. Pot body positioning hole; 503. Temperature control water pipe; 504. Water pipe connecting tube; 505. Extraction pot inner layer; 6. Eccentric turntable; 601. Guide mounting frame; 602. Guide chute; 603. First discharge through hole; 604. Storage box; 6 05, second discharge hole; 606, driven rack; 607, second reset elastic member; 7, connecting shaft; 701, incomplete gear; 702, positioning guide rod; 703, sliding mounting plate; 704, first mounting seat; 705, stirring connecting rod; 706, limiting circular plate; 707, third reset elastic member; 708, fixed mounting plate; 709, second mounting seat; 8, positioning mounting seat; 801, guide casing; 802, connecting slide rod; 803, fourth reset elastic member; 804, cleaning scraper ring. DETAILED DESCRIPTION
[0024] Example 1: Please refer to Figures 1 to 5 As shown:
[0025] The present invention provides a milk fat and cream extraction device, comprising a supporting base 1, a mobile installation box 2, a positioning bracket 3, an electric push rod 4, a cream extraction pot 5, a positioning structure, an eccentric turntable 6 and a temperature adjustment structure; the mobile installation box 2 is slidably connected to the upper part of the supporting base 1 up and down; the positioning bracket 3 is welded to the right side of the supporting base 1; two electric push rods 4 are provided, and the two electric push rods 4 are respectively bolted to the front and rear sides of the mobile installation box 2, and the piston rods of the two electric push rods 4 are fixedly connected to the positioning bracket 3; the cream extraction pot 5 is placed on the left side of the supporting base 1; the positioning structure is arranged above the supporting base 1; the eccentric turntable 6 is rotatably connected to the left side of the mobile installation box 2; and the temperature adjustment structure is arranged on the inner side of the cream extraction pot 5.
[0026] Among them, the positioning structure includes a positioning suction disk 101, a positioning sliding plate 301 and a sliding positioning shaft 302; four positioning suction disks 101 are provided, and the four positioning suction disks 101 are evenly distributed and fixedly connected to the lower part of the support base 1; two sliding positioning shafts 302 are provided, and the two sliding positioning shafts 302 are respectively slid up and down and connected to the front and rear sides of the positioning bracket 3; two positioning sliding plates 301 are provided, and the two positioning sliding plates 301 are respectively fixedly connected to the lower parts of the two sliding positioning shafts 302.
[0027] Among them, the positioning structure also includes a first reset elastic member 303, a pot body positioning plate 501 and a pot body positioning hole 502; two first reset elastic members 303 are provided, and the two positioning sliding plates 301 are elastically connected to the positioning bracket 3 through the two first reset elastic members 303; two pot body positioning plates 501 are provided, and the two pot body positioning plates 501 are respectively welded on the front and back sides of the cream extraction pot 5; two pot body positioning holes 502 are provided, and the two pot body positioning holes 502 are respectively opened on the upper parts of the two pot body positioning plates 501.
[0028] Among them, the temperature control structure includes a temperature control water pipe 503, a water pipe connecting tube 504 and an extraction pot inner layer 505; the temperature control water pipe 503 is arranged on the inner side of the cream extraction pot 5; two water pipe connecting tubes 504 are arranged, and the two water pipe connecting tubes 504 are rotatably connected to the front and rear sides of the temperature control water pipe 503 respectively; the extraction pot inner layer 505 is welded to the inner side of the cream extraction pot 5.
[0029] The specific usage and function of this embodiment are as follows: milk is poured into the cream extraction pot 5, and the water pipe connecting tube 504 is screwed onto the external water source. At this time, hot water is introduced into the temperature regulating water pipe 503, and the milk begins to heat up due to the heat transferred from the inner layer 505 of the extraction pot. During the heating process, the eccentric rotating disk 6 rotates to stir the milk. After the heating is completed, ice water is introduced into the temperature regulating water pipe 503 to cool the milk. After cooling to a suitable temperature, the eccentric rotating disk 6 rotates again to stir the milk. After repeating for several times, the extraction of the cream can be completed. After the extraction is completed, the electric pusher The rod 4 pushes the positioning bracket 3 to move the mobile installation box 2 upward. At this time, hold the pot body positioning plate 501. The positioning sliding plate 301 will drive the sliding positioning shaft 302 to move downward after being squeezed by the hand. When the sliding positioning shaft 302 moves out of the pot body positioning hole 502, the cream extraction pot 5 can be removed, which is convenient for taking out the cream. When the cream extraction pot 5 is put back to its original place, the first reset elastic member 303 will push the sliding positioning shaft 302 and the positioning sliding plate 301 to reset and be stuck in the pot body positioning hole 502 again. The positioning suction plate 101 can ensure the stability of the support base 1.
[0030] Example 2: Please refer to Figures 6 to 8 As shown:
[0031] On the basis of embodiment one, it also includes a connecting shaft 7, a feeding structure, a stirring structure, a cleaning structure and a positioning mounting seat 8; the connecting shaft 7 is rotatably connected to the lower part of the eccentric turntable 6; the feeding structure is arranged at the lower part of the eccentric turntable 6; the stirring structure is arranged below the connecting shaft 7; the cleaning structure is arranged above the positioning bracket 3; the positioning mounting seat 8 is welded to the right side of the positioning bracket 3.
[0032] Among them, the feeding structure includes a guide mounting frame 601, a guide slide groove 602 and a first discharge through hole 603; the guide mounting frame 601 is welded to the lower part of the eccentric turntable 6; the guide slide groove 602 is opened at the upper part of the guide mounting frame 601; the first discharge through hole 603 is opened at the lower part of the guide mounting frame 601.
[0033] Among them, the feeding structure also includes a storage box 604, a driven rack 606 and an incomplete gear 701; the driven rack 606 is slidably connected to the inner side of the guide slide 602; the storage box 604 is fixedly connected to the right side of the driven rack 606; the incomplete gear 701 is fixedly connected to the upper part of the connecting shaft 7.
[0034] Among them, the feeding structure also includes a second discharge hole 605, a second reset elastic member 607 and a positioning guide rod 702; the second discharge hole 605 is opened at the lower part of the storage box 604; the driven rack 606 is elastically connected to the guide mounting frame 601 through the second reset elastic member 607; the positioning guide rod 702 is fixedly connected to the lower part of the connecting shaft 7.
[0035] Among them, the stirring structure includes a sliding mounting plate 703, a first mounting seat 704, a stirring connecting rod 705 and a limiting circular plate 706; the sliding mounting plate 703 is key-connected to the upper part of the positioning guide rod 702; a plurality of first mounting seats 704 are provided, and a plurality of first mounting seats 704 are fixedly connected in a circular array to the lower part of the sliding mounting plate 703; a plurality of stirring connecting rods 705 are provided, each group of stirring connecting rods 705 is composed of two mutually hinged circular rods, and a plurality of groups of stirring connecting rods 705 are respectively hinged to the lower parts of a plurality of first mounting seats 704; the limiting circular plate 706 is fixedly connected to the middle part of the positioning guide rod 702.
[0036] Among them, the stirring structure also includes a third reset elastic member 707, a fixed mounting plate 708 and a second mounting seat 709; the sliding mounting plate 703 is elastically connected to the limiting circular plate 706 through the third reset elastic member 707; the fixed mounting plate 708 is fixedly connected to the lower end surface of the positioning guide rod 702; a plurality of second mounting seats 709 are arranged, and a circular array of the plurality of second mounting seats 709 is fixedly connected to the upper part of the fixed mounting plate 708, and the plurality of second mounting seats 709 are respectively hinged to the plurality of groups of stirring connecting rods 705.
[0037] Among them, the cleaning structure includes a guide protective tube 801, a connecting slide rod 802, a fourth reset elastic member 803 and a cleaning scraper ring 804; the guide protective tube 801 is hinged at the upper part of the positioning mounting seat 8; the connecting slide rod 802 is slidably connected to the inner side of the guide protective tube 801; the connecting slide rod 802 is elastically connected to the guide protective tube 801 through the fourth reset elastic member 803; the cleaning scraper ring 804 is hinged at the left side of the connecting slide rod 802; the cleaning scraper ring 804 is sleeved on the outer side of the sliding mounting plate 703.
[0038] A method for extracting cream from milk: When the eccentric rotating disk 6 rotates, the connecting shaft 7 also rotates. When the connecting shaft 7 rotates, the stirring connecting rod 705 swings along the first mounting seat 704 and the second mounting seat 709 under the action of centrifugal force, thereby driving the sliding mounting plate 703 to slide downward along the positioning guide rod 702, so that the sliding mounting plate 703 is close to the fixed mounting plate 708. At this time, the stirring connecting rod 705 can stir the milk in the pot, and the limiting circular plate 706 can control the movement of the stirring connecting rod 705. After the stirring is completed, the connecting shaft 7 no longer rotates, and the sliding mounting plate 703 drives the stirring connecting rod 705 to reset under the action of the third reset elastic member 707. When the eccentric rotating disk 6 rotates, the cleaning scraper ring 804 will move simultaneously with the connecting shaft 7. When the cleaning scraper ring 804 moves, the connecting slide bar 802 will slide along the guide sleeve 801. At the same time, the connecting slide bar 802 and the guide sleeve 801 will swing accordingly along the positioning mounting seat 8 and the cleaning scraper ring 804. The fourth reset elastic member 80 3 can prevent the connecting slide bar 802 from coming out of the guide sleeve 801. When the mobile installation box 2 moves up, the cleaning scraper ring 804 can scrape off the cream adhering to the stirring connecting rod 705, so that the cream falls back into the pot. When sugar needs to be added, the storage box 604 is pulled out to add a proper amount of sugar, and the storage box 604 is released to return to its original position. When the connecting shaft 7 rotates, the incomplete gear 701 is driven to rotate. When the incomplete gear 701 is engaged with the driven rack 606, it pushes the driven rack 606 to rotate. The movable rack 606 and the storage box 604 move along the guide mounting frame 601 and the guide slide groove 602. When the second discharge hole 605 is aligned with the first discharge hole 603, the white sugar will fall into the milk. When the incomplete gear 701 is no longer engaged with the driven rack 606, the driven rack 606 and the storage box 604 will automatically reset under the action of the second reset elastic member 607. As the eccentric turntable 6 rotates, the storage box 604 will move to different positions, so that the white sugar can fall into the milk evenly.
Claims
1. A device for extracting cream from milk, comprising: A support base (1), a mobile installation box (2), a positioning bracket (3), an electric push rod (4), a cream extraction pot (5), a positioning structure, an eccentric turntable (6), a temperature adjustment structure, a connecting shaft (7), a feeding structure, a stirring structure, a cleaning structure and a positioning mounting seat (8); the mobile installation box (2) is connected to the upper part of the support base (1) by sliding up and down; the positioning bracket (3) is welded to the right side of the support base (1); the front and rear sides of the mobile installation box (2) are respectively bolted with an electric push rod (4), and the piston rod of the electric push rod (4) is fixedly connected to the positioning bracket (3); the cream extraction pot (5) is placed on the left side of the support base (1); it is characterized in that the positioning structure is arranged above the support base (1); the eccentric turntable (6) is rotatably connected to the left side of the mobile installation box (2); the temperature adjustment structure is arranged on the inner side of the cream extraction pot (5); the connecting shaft (7) is rotatably connected to the lower part of the eccentric turntable (6); the feeding structure is arranged at the lower part of the eccentric turntable (6); the stirring structure is arranged below the connecting shaft (7); the cleaning structure is arranged above the positioning bracket (3); the positioning mounting seat (8) is welded to the right side of the positioning bracket (3); The positioning structure comprises a positioning suction plate (101), a positioning sliding plate (301) and a sliding positioning shaft (302); a plurality of the positioning suction plates (101) are evenly distributed and fixedly connected to the lower part of the support base (1); a sliding positioning shaft (302) is slidably connected to the front and rear sides of the positioning bracket (3) up and down respectively; and a positioning sliding plate (301) is fixedly connected to the lower part of each sliding positioning shaft (302).
2. The device for extracting cream from milk as claimed in claim 1, characterized in that: The positioning structure further comprises a first resetting elastic member (303), a pot body positioning plate (501) and a pot body positioning hole (502); each of the positioning sliding plates (301) is elastically connected to the positioning bracket (3) via a first resetting elastic member (303); a pot body positioning plate (501) is welded to the front and rear sides of the cream extraction pot (5), respectively; a pot body positioning hole (502) is provided on the upper part of each of the pot body positioning plates (501); the temperature control structure comprises a temperature control water pipe (503), a water pipe connecting tube (504) and an extraction pot inner layer (505); the temperature control water pipe (503) is arranged on the inner side of the cream extraction pot (5); the front and rear sides of the temperature control water pipe (503) are rotatably connected to a water pipe connecting tube (504); the extraction pot inner layer (505) is welded to the inner side of the cream extraction pot (5).
3. The device for extracting cream from milk as claimed in claim 1, characterized in that: The feeding structure includes a guide mounting frame (601), a guide slide groove (602) and a first discharge hole (603); the guide mounting frame (601) is welded to the lower part of the eccentric turntable (6); the guide slide groove (602) is arranged at the upper part of the guide mounting frame (601); the first discharge hole (603) is arranged at the lower part of the guide mounting frame (601); the feeding structure also includes a storage box (604), a driven rack (606) and an incomplete gear (701); the driven rack (606) is slidably connected to the inner side of the guide slide groove (602); the storage box (604) is fixedly connected to the right side of the driven rack (606); the incomplete gear (701) is fixedly connected to the upper part of the connecting shaft (7).
4. The device for extracting cream from milk as claimed in claim 1, characterized in that: The feeding structure further comprises a second discharge hole (605), a second reset elastic member (607) and a positioning guide rod (702); the second discharge hole (605) is provided at the lower part of the storage box (604); the driven rack (606) is elastically connected to the guide mounting frame (601) via the second reset elastic member (607); the positioning guide rod (702) is fixedly connected to the lower part of the connecting shaft (7); the stirring structure comprises a sliding mounting plate (703) , a first mounting seat (704), a stirring connecting rod (705) and a limiting circular plate (706); the sliding mounting plate (703) is key-connected to the upper part of the positioning guide rod (702); a plurality of the first mounting seats (704) are fixedly connected in a circular array at the lower part of the sliding mounting plate (703); a group of the stirring connecting rods (705) are hinged at the lower part of each of the first mounting seats (704); the limiting circular plate (706) is fixedly connected to the middle part of the positioning guide rod (702).
5. The device for extracting cream from milk as claimed in claim 1, characterized in that: The stirring structure also includes a third reset elastic member (707), a fixed mounting plate (708) and a second mounting seat (709); the sliding mounting plate (703) is elastically connected to the limiting circular plate (706) through the third reset elastic member (707); the fixed mounting plate (708) is fixedly connected to the lower end surface of the positioning guide rod (702); a plurality of second mounting seats (709) are fixedly connected to the upper circumferential array of the fixed mounting plate (708), and the second mounting seats (709) are hinged to the stirring connecting rod (705); the cleaning structure includes a guide sleeve (801), a connecting slide bar (802), a fourth reset elastic member (803) and a cleaning scraper ring (804); the guide sleeve (801) is hinged on the upper part of the positioning mounting seat (8); the connecting slide bar (802) is slidably connected to the inner side of the guide sleeve (801); the connecting slide bar (802) is elastically connected to the guide sleeve (801) through the fourth reset elastic member (803); the cleaning scraper ring (804) is hinged on the left side of the connecting slide bar (802); the cleaning scraper ring (804) is sleeved on the outer side of the sliding mounting plate (703).