A stirring and mixing device and method

Abstract

The present invention relates to the technical field of mixing equipment, and specifically discloses a stirring and mixing device and method. A plurality of discs are sleeved layer by layer, and two adjacent discs are rotationally connected. The disc at the center is coaxially connected with a central shaft, and the central shaft is rotationally assembled in the mixing tank; a spiral blade surrounding the central shaft is connected to each disc, and a plurality of spiral blades are nested in sequence from the inside to the outside to form a conveying blade. The diameter of the conveying blade is adapted to the inner cavity of the mixing tank so as to convey materials during rotation; a separation mechanism is arranged on the central shaft and is used to control the circumferential misalignment of a plurality of discs so that a plurality of spiral blades are separated from each other. In the stirring and mixing device of the present invention, through the separation and nesting of the spiral blades, the stirring and conveying of materials are realized, thereby realizing the external discharge of the power of the materials and improving the discharge efficiency and sufficiency of the discharge.

Description

Technical Field

[0001] The invention relates to the technical field of mixing equipment, and in particular to a stirring and mixing device and method. Background Art

[0002] Rice wine, also known as fermented glutinous rice, sweet wine, and formerly known as "Li", is a delicious and ancient brewed alcoholic beverage that uses rice as raw material and produces alcohol through a fermentation process. Jiuqu, a mixture containing yeast and other fermenting microorganisms, is the main fermentation agent in the rice wine fermentation process. It can convert the starch in rice into sugar, and then convert sugar into alcohol, and give rice wine a unique aroma and taste. In the rice wine production process, the mixing of rice and Jiuqu is a crucial step.

[0003] The Chinese patent application with publication number CN114699959A discloses a device for mixing koji and glutinous rice for rice wine production, including a mixing tank, a motor is installed on the top of the mixing tank, the output end of the motor is connected to a rotating rod through a coupling, a plurality of conveying blades are fixedly connected to the rotating rod, and a discharge pipe with a discharge valve is fixedly connected to the bottom of the mixing tank. When the koji and glutinous rice are mixed, the glutinous rice is first put into the mixing tank, the motor is started and the conveying blades are driven by the rotating rod to continuously turn the glutinous rice, and the koji powder is scattered in the mixing tank and mixed with the glutinous rice. The stirring action of the conveying blades makes the mixing of glutinous rice and koji more uniform. After the mixing is completed, the discharge valve is opened, and the fermented glutinous rice can be discharged from the mixing tank through the discharge pipe.

[0004] However, since the glutinous rice has been soaked and steamed before mixing and fermenting, it has a high viscosity. The discharge depends on the weight of the glutinous rice, which takes a long time and leaves a lot of glutinous rice residue. The mixing tank is a closed structure, so it is difficult to use tools to reach into the tank to stir the glutinous rice, and it is also impossible to speed up the discharge of the glutinous rice. As a result, the discharge efficiency of the glutinous rice is low and the discharge is insufficient.

[0005] Therefore, the art needs a stirring and mixing device and method to solve the above problems. Summary of the invention

[0006] The invention provides a stirring and mixing device and method, aiming to solve the problems of low discharge efficiency and insufficient discharge of glutinous rice in the related art.

[0007] The stirring and mixing device of the present invention includes a mixing box and an auger. The upper part of the mixing box is open. The auger is horizontally arranged in the mixing box. The auger includes a wheel disc and a separating mechanism. A plurality of the wheel discs are nested layer by layer, and two adjacent wheel discs are rotatably connected. The wheel disc at the center is coaxially connected with a central shaft, and the central shaft is rotatably assembled in the mixing box. Each wheel disc is connected with a spiral blade surrounding the central shaft. A plurality of the spiral blades are sequentially nested from the inside to the outside to form a conveying blade. The diameter of the conveying blade is adapted to the inner cavity of the mixing box so as to convey materials during rotation. The separating mechanism is arranged on the central shaft and is used to control the circumferential dislocation of a plurality of the wheel discs so that a plurality of the spiral blades are separated from each other.

[0008] The effect is as follows: Through the setting of the separating mechanism, the present invention realizes the separation of a plurality of spiral blades. Thus, when the central shaft rotates, a plurality of spiral blades can stir the materials, promote the mixing of the materials, and make the mixing uniform. After the stirring is completed and when discharging is required, the separating mechanism can control a plurality of wheel discs to return to their original positions, so that a plurality of spiral blades are nested again to form a conveying blade. Since the diameter of the conveying blade is adapted to the inner cavity of the mixing box, the conveying blade can push the mixed materials outwards during rotation to realize external discharge.

[0009] Compared with the existing operation of discharging by relying on the gravity of glutinous rice, the spiral conveying of the conveying blade actively discharges the glutinous rice. The conveying structure is more reliable and reasonable, and the conveying power is stronger. Thus, the discharging time of glutinous rice is greatly shortened, and the discharging efficiency of glutinous rice is improved. In addition, the power push of the conveying blade also makes the discharging of glutinous rice more sufficient, reducing the residue of glutinous rice in the inner cavity.

[0010] Preferably, the number of the wheel discs is three. The wheel disc at the center is set as the central wheel disc, and the other two wheel discs are set as nested wheel discs. The separating mechanism includes a moving part and a conversion joint. The moving part is slidably assembled on the central shaft along the axial direction of the central shaft. Both of the two nested wheel discs are provided with connecting parts extending along the radial direction of the central shaft. The conversion joint is located between the two connecting parts, and the conversion joint is hinged to both of the two connecting parts through connecting rods. A driving rod is hinged between the conversion joint and the moving part.

[0011] Preferably, the separating mechanism further includes a kit and a driver. The kit is rotatably connected with the moving part, and the rotation centers of both are concentric with the axis of the central shaft. The driver is installed on the mixing box and is used to drive the kit to slide along the axial direction of the central shaft.

[0012] The effect is as follows: When the driver drives the kit to slide, the kit drives the moving part to slide through the collar, thereby adjusting the position of the moving part in the axial direction of the central axis. The moving part can drive the adapter to approach the central axis through the driving rod. The adapter drives the two connecting rods to perform planar motion. The two connecting rods respectively drive the two nested discs to rotate relative to each other through the connecting pieces, thereby realizing the circumferential misalignment of the central disc and the two nested discs, and then realizing the mutual separation of the three spiral blades.

[0013] Preferably, the spiral blade on the central disc is set as the central spiral blade, and the remaining spiral blades are set as nested spiral blades. A plurality of fitting grooves are provided on both the central spiral blade and the nested spiral blade far from the central spiral blade. The plurality of fitting grooves are distributed at intervals along the spiral direction of the central spiral blade or the nested spiral blade; A plurality of fitting strips are provided on both sides of the nested spiral blade close to the central spiral blade. A plurality of the fitting strips on one side are fitted in the fitting grooves of the central spiral blade, and a plurality of the fitting strips on the other side are fitted in the fitting grooves of the nested spiral blade far from the central spiral blade.

[0014] The effect is as follows: The setting of the fitting strips and the fitting grooves realizes the fitting effect between the respective spiral blades, facilitating the combination to form the conveying blade. In addition, after the central spiral blade and the two nested spiral blades are separated from each other, a plurality of spaced protrusions will be formed on the central spiral blade and the nested spiral blade far from the central spiral blade due to the opening of the fitting grooves. These protrusions combined with the exposed fitting strips can enhance the stirring effect on the material and improve the uniformity of the material mixing.

[0015] Preferably, a first clamping member and a second clamping member for clamping the conveying blade are provided on both sides of the conveying blade. One end of the first clamping member is rotatably connected to the central axis. One end of the second clamping member is sleeved outside the central axis and is rotatably connected to the first clamping member. A torsion elastic member is connected between the first clamping member and the second clamping member. The torsion elastic member is used to make the first clamping member and the second clamping member approach each other to clamp the middle conveying blade; A locking mechanism is provided on the mixing box. The locking mechanism is used to block the first clamping member or the second clamping member when the conveying blade drives the first clamping member and the second clamping member to rotate, so that the circumferential positions of the first clamping member and the second clamping member are locked.

[0016] Preferably, the locking mechanism includes a locking frame and a pushing mechanism. The locking frame is elastically slidably connected to the mixing tank along the radial direction of the central axis. The locking frame has a gear lever portion. When the locking frame slides, the gear lever portion can be located on the rotation path of the first clamping member or the second clamping member to block the first clamping member or the second clamping member. The pushing mechanism is installed on the mixing tank and is used to push the locking frame to slide.

[0017] The effect is that after the gear lever portion blocks the first clamping member or the second clamping member, when the conveying blade continues to rotate, the first clamping member will slide axially along the central axis under the spiral action of the conveying blade. During the sliding, the first clamping member and the second clamping member will successively pass through each part of the conveying blade, scraping the glutinous rice on both side surfaces of the conveying blade, realizing self-cleaning of the conveying blade.

[0018] Preferably, in the initial state, the first clamping member and the second clamping member are adjacent to the wheel disc. A ring frame coaxially arranged outside the wheel disc is provided in the mixing tank. The inner side of the ring frame forms a ring groove. Limiting rods are fixedly arranged at the free ends of the first clamping member and the second clamping member. The limiting rods are fitted in the ring groove. An opening communicating with the ring groove is provided on the ring frame, and the opening is used for the gear lever portion to enter.

[0019] The effect is that when the first clamping member and the second clamping member rotate synchronously with the sleeved spiral blade, neither the first clamping member nor the second clamping member can break away from the restraint of the ring groove. The ring groove realizes the locking of the axial positions of the first clamping member and the second clamping member, avoiding the axial sliding of the first clamping member and the second clamping member along the central axis. In this way, the first clamping member and the second clamping member are constrained in the wheel disc area, facilitating subsequent cleaning of the conveying blade from the head end to the tail end of the conveying blade, ensuring the comprehensiveness and integrity of the cleaning of the conveying blade.

[0020] Preferably, there are two locking mechanisms and they are symmetrical about the central axis.

[0021] Preferably, a discharge port is provided at the end of the mixing tank far from the wheel disc, and a shut-off door for controlling its opening and closing is installed at the discharge port.

[0022] The stirring and mixing method of the present invention uses the above-mentioned stirring and mixing device, including the following steps:

[0023] Enable the separation mechanism to control multiple wheel discs to be misaligned with each other, and multiple spiral blades to be separated from each other;

[0024] Enable the central axis to rotate. The central axis drives multiple wheel discs to rotate through the separation mechanism, and multiple spiral blades stir the materials in the mixing tank to make them evenly mixed;

[0025] Cause the separation mechanism to control multiple disks to return to their original positions, and multiple spiral blades are fitted together to form a conveying blade;

[0026] Rotate the central shaft, and the conveying blade rotates accordingly to convey materials outward.

[0027] Adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0028] Through the setting of the separation mechanism in the present invention, the spiral blades can be switched between the separated state and the fitted state. When the spiral blades are separated, the spiral blades can stir the materials to promote uniform mixing; when the spiral blades are fitted together, a conveying blade is formed, which can perform spiral conveyance on the materials to achieve external discharge. Compared with the existing operation of discharging materials relying on the gravity of the materials, the spiral conveyance using the conveying blade can actively discharge the materials, the conveying structure is more reliable and reasonable, the conveying power is stronger, thus greatly shortening the discharging time of the materials and improving the discharging efficiency of the materials; in addition, the power push of the conveying blade also makes the discharging of the materials more sufficient, reducing the residue of the materials in the inner cavity. Description of the Drawings

[0029] Figure 1 is a schematic external view of the stirring and mixing device of the present invention.

[0030] Figure 2 is a schematic sectional view of the stirring and mixing device of the present invention.

[0031] Figure 3 is of the present invention Figure 2 magnified schematic view of part A.

[0032] Figure 4 is of the present invention Figure 2 magnified schematic view of part B.

[0033] Figure 5 is an isometric schematic view after multiple spiral blades of the present invention are separated.

[0034] Figure 6 is a schematic structural view of the first clamping member to the ring frame part of the present invention.

[0035] Figure 7 is a three-dimensional schematic view of the first clamping member and the second clamping member of the present invention.

[0036] Figure 8 is a schematic structural view of the pushing mechanism to the locking frame part of the present invention.

[0037] Reference Signs:

[0038] 1, mixing box; 11, inner cavity; 12, driving motor; 13, extension plate; 14, ring frame; 141, ring groove; 142, opening;

[0039] 2. Roulette; 21. Central roulette; 22. Sleeve roulette; 221. Connecting piece;

[0040] 3. Separation mechanism; 31. Moving part; 311. Collar; 32. Adapter; 321. Connecting rod; 322. Driving rod; 33. Kit; 34. Driver; 341. Screw; 342. Turning handle;

[0041] 400. Conveyor blade; 4. Helical blade; 41. Central helical blade; 411. Protrusion; 42. Sleeve helical blade; 421. Fitting strip;

[0042] 5. Central shaft;

[0043] 6. Shut-off door; 61. Door body; 611. Installation frame; 62. Lock; 621. Compression spring; 622. Pull rod; 6221. Handle part;

[0044] 71. First clamping part; 711. Limit rod; 72. Second clamping part;

[0045] 81. Locking frame; 811. Return spring; 812. Gear lever part; 82. Pushing mechanism; 821. Bolt; 8211. Head. Detailed implementation mode

[0046] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation to the present invention.

[0047] The following will be combined with Figures 1 to 8 Describe the stirring and mixing device of the present invention.

[0048] As Figure 1 shown, the stirring and mixing device of the present invention includes a mixing tank 1 and an auger.

[0049] The mixing tank 1 is of a horizontal structure, and an inner cavity 11 extending left and right is formed inside it. The cross-section of the inner cavity 11 is generally arc-shaped. The upper part of the mixing tank 1 is open for placing materials. In this embodiment, the materials can be selected as glutinous rice and koji, and the mixing tank 1 is used to realize the mixing of the two.

[0050] Continue to refer to Figures 1 to 3 , the auger is horizontally arranged in the inner cavity 11, and the auger includes a roulette 2 and a separation mechanism 3.

[0051] Multiple wheel discs 2 are nested in layers, and two adjacent wheel discs 2 are connected in rotation. The wheel disc 2 at the center is coaxially connected with a central shaft 5, and the central shaft 5 is rotatably assembled in the mixing box 1. It can be understood that the axis of the central shaft 5 and the arc center of the inner cavity 11 are concentrically arranged; a driving motor 12 for driving the central shaft 5 to rotate is installed on the mixing box 1. Each wheel disc 2 is fixedly connected with a spiral blade 4 surrounding the central shaft 5. In the initial state, multiple spiral blades 4 are sequentially embedded from the inside to the outside to form a conveying blade 400. The diameter of the conveying blade 400 is equal to the diameter of the inner cavity 11, so that the conveying blade 400 is adapted to the inner cavity 11 to convey materials during rotation.

[0052] An installation cavity is provided inside the mixing box 1, and the installation cavity is located on the side of the wheel disc 2 away from the spiral blade 4, and part of the central axis 5 extends into the installation cavity. The separation mechanism 3 is located in the installation cavity and is arranged on the central axis 5, and is used to control the displacement of multiple wheel discs 2 in the circumferential direction so that the multiple spiral blades 4 are separated from each other.

[0053] Continue to refer Figures 2 to 5 The separation mechanism 3 includes a moving part 31, a conversion joint 32, a kit 33 and a driver 34.

[0054] There are three wheels 2, the wheel 2 at the center is set as the central wheel 21, and the other two wheels 2 are set as the sleeve wheel 22. The moving member 31 is slidably sleeved on the central shaft 5, and the sliding direction of the moving member 31 is along the axial direction of the central shaft 5.

[0055] The two sleeve wheels 22 are fixed with a connecting piece 221, which extends in the radial direction of the central axis 5. In the initial state, the extending direction of the connecting piece 221 is consistent with the vertical direction. The conversion joint 32 is located between the two connecting pieces 221. The conversion joint 32 and the two connecting pieces 221 are hinged through a connecting rod 321. The two connecting rods 321 are symmetrical about the conversion joint 32. A driving rod 322 is hinged between the conversion joint 32 and the moving piece 31.

[0056] When the moving member 31 moves axially along the central axis 5, it can drive the adapter 32 to approach the central axis 5 through the drive rod 322. The adapter 32 drives the two connecting rods 321 to perform planar motion, and the two connecting rods 321 respectively drive the two nested discs 22 to rotate relative to each other through the connecting members 221, thereby realizing the circumferential dislocation of the central disc 21 and the two nested discs 22, and then realizing the mutual separation of the three helical blades 4. In this way, when the central axis 5 rotates, it drives the central disc 21 to rotate, and at the same time drives the adapter 32 to rotate around the axis of the central axis 5 through the moving member 31 and the drive rod 322. The adapter 32 drives the two nested discs 22 to rotate through the connecting rods 321 and the connecting members 221, thereby realizing the synchronous rotation of the central disc 21 and the nested discs 22. Thus, the three separated helical blades 4 also rotate synchronously and stir the glutinous rice raw materials in the inner cavity 11. When stirring, the koji powder is gradually sprinkled into the inner cavity 11, thereby realizing the stirring and mixing of the glutinous rice raw materials and the koji powder and making the two evenly mixed.

[0057] When the stirring is completed and discharging is required, the moving member 31 can be moved axially in the reverse direction along the central axis 5 and reset. Through the power transmission of the drive rod 322, the adapter 32, the connecting rods 321 and the connecting members 221, the two nested discs 22 rotate in the reverse direction and gradually return to their original positions. Thus, the central disc 21 and the two nested discs 22 are in the correct circumferential position, and the three helical blades 4 are re-engaged to form a conveying blade 400. In this way, when the central axis 5 rotates, through the connection of each component, it can drive the conveying blade 400 to rotate. Since the conveying blade 400 is adapted to the inner cavity 11, the conveying blade 400 can push the mixed glutinous rice outwards, thereby realizing the external discharge of the glutinous rice. Compared with the existing operation of discharging the glutinous rice by relying on the gravity of the glutinous rice, the use of the spiral conveying of the conveying blade 400 to actively discharge the glutinous rice makes the conveying structure more reliable and reasonable, and the conveying power is stronger. Thus, the discharging time of the glutinous rice is greatly shortened and the discharging efficiency of the glutinous rice is improved; in addition, the power pushing of the conveying blade 400 also makes the discharging of the glutinous rice more complete and reduces the residue of the glutinous rice in the inner cavity 11.

[0058] The moving member 31 has a collar 311 sleeved on the central axis 5, and the kit 33 is rotatably sleeved on the outer peripheral surface of the collar 311. Understandably, the rotation center of the kit 33 is concentric with the axis of the central axis 5.

[0059] The driver 34 is installed on the mixing box 1 and is used to drive the kit 33 to slide axially along the central axis 5.

[0060] When the driver 34 drives the kit 33 to slide, the kit 33 drives the moving member 31 to slide through the collar 311, thereby adjusting the position of the moving member 31 in the axial direction of the central axis 5, and further controlling the engagement and separation of the three helical blades 4.

[0061] Continue to refer toFigure 1 , Figure 2 and Figure 4 , in order to achieve the smooth discharge of the mixed glutinous rice, a discharge port is provided at the end of the mixing box 1 away from the roulette 2, and a shut-off door 6 for controlling its opening and closing is installed at the discharge port. During stirring, the shut-off door 6 is closed, which can seal the materials in the mixing box 1 and prevent overflow; during discharging, the shut-off door 6 is opened, and the materials can be discharged through the discharge port.

[0062] Specifically, the shut-off door 6 includes a door body 61 and a lock catch 62. The door body 61 is vertically slidably installed on the mixing box 1. An installation frame 611 is fixedly provided at the top of the door body 61. The lock catch 62 is slidably assembled left and right in the installation frame 611 and is connected to the installation frame 611 through a compression spring 621. A pull rod 622 extending out of the installation frame 611 is connected to the lock catch 62, and a handle portion 6221 is provided at the extending end of the pull rod 622. The upper part of the mixing box 1 has an extension plate 13 extending upward.

[0063] Under normal conditions, the door body 61 closes the discharge port. When the shut-off door 6 is opened, the door body 61 can be lifted until the lock catch 62 is lifted above the extension plate 13. At this time, the lock catch 62 pops out of the installation frame 611 under the action of the compression spring 621 and latches at the upper end position of the extension plate 13. In this way, the extension plate 13 realizes the check of the lock catch 62, avoiding the lock catch 62 and the door body 61 from falling back under the action of gravity, thereby maintaining the open state of the door body 61 and ensuring the continuous discharge of the materials. When the discharging is over and the shut-off door 6 needs to be closed, the pull rod 622 can be pulled through the handle portion 6221. The pull rod 622 drives the lock catch 62 to retract into the installation frame 611. The latching effect of the lock catch 62 on the extension plate 13 disappears. Under the action of gravity and manual pushing, the door body 61 starts to move downward until the door body 61 closes the discharge port again.

[0064] Continue to refer to Figure 2 and Figure 5 , the spiral blade 4 on the central roulette 21 is set as the central spiral blade 41, and the remaining spiral blades 4 are set as nested spiral blades 42. A plurality of fitting grooves are provided on both the central spiral blade 41 and the nested spiral blade 42 far from the central spiral blade 41. The plurality of fitting grooves on the central spiral blade 41 are equally spaced along the spiral direction of the central spiral blade 41. The plurality of fitting grooves on the nested spiral blade 42 are equally spaced along the spiral direction of the nested spiral blade 42. A plurality of fitting strips 421 are provided on both sides of the nested spiral blade 42 close to the central spiral blade 41. A plurality of fitting strips 421 on one side are fitted in the fitting grooves of the central spiral blade 41, and a plurality of fitting strips 421 on the other side are fitted in the fitting grooves of the nested spiral blade 42 far from the central spiral blade 41.

[0065] The arrangement of the fitting strip 421 and the fitting groove realizes the fitting effect between the respective spiral vanes 4, facilitating the combination to form the conveying vane 400. In addition, after the central spiral vane 41 and the two nested spiral vanes 42 are separated from each other, a plurality of spaced protrusions 411 will be formed on the central spiral vane 41 and the nested spiral vane 42 far from the central spiral vane 41 due to the opening of the fitting groove. These protrusions 411 combined with the exposed fitting strip 421 can enhance the stirring effect on the material, improving the uniformity of the mixing of the glutinous rice raw material and the koji powder.

[0066] Continue to refer to Figure 2 、 Figure 6 and Figure 7 After the discharging is completed, it is inevitable that glutinous rice adheres to the leaf surface of the conveying vane 400. To achieve self-cleaning of the conveying vane 400, a first clamping member 71 and a second clamping member 72 for clamping it are provided on both sides of the conveying vane 400. The connecting end of the first clamping member 71 is rotatably connected to the central shaft 5, and the connecting end of the second clamping member 72 is sleeved on the outer peripheral side of the central shaft 5 and rotatably connected to the first clamping member 71. A torsion elastic member (not shown in the figure) is connected between the first clamping member 71 and the second clamping member 72. The torsion elastic member can directly adopt a torsion spring, and the torsion spring is used to make the first clamping member 71 and the second clamping member 72 approach each other to clamp the middle conveying vane 400. In the initial state, the first clamping member 71 and the second clamping member 72 are adjacent to the wheel disc 2.

[0067] Continue to refer to Figure 1 、 Figure 6 、 Figure 7 and Figure 8 A locking mechanism is provided on the mixing box 1. The locking mechanism includes a locking frame 81 and a pushing mechanism 82. The locking frame 81 is slidably assembled on the mixing box 1 along the radial direction of the central shaft 5. In this embodiment, the sliding direction of the locking frame 81 is specifically the front-back direction, and the locking frame 81 is also connected to the mixing box 1 through a return spring 811. The locking frame 81 has a gear rod portion 812 extending in the left-right direction. The pushing mechanism 82 is installed on the mixing box 1 and is used to push the locking frame 81 to slide.

[0068] During stirring, the central spiral vane 41 and the two nested spiral vanes 42 are separated from each other. At this time, the two nested spiral vanes 42 will push the first clamping member 71 and the second clamping member 72 to separate to both sides. Then the first clamping member 71 and the second clamping member 72 rotate synchronously with the central spiral vane 41 and the two nested spiral vanes 42, thereby avoiding interference during stirring.

[0069] After the blanking is completed, the pushing mechanism 82 can push the locking frame 81 to slide, and the gear lever portion 812 can move to the rotation path of the first clamping member 71. Then, continue to rotate the central shaft 5 to make the conveying blade 400 rotate. When the conveying blade 400 rotates, it will drive the first clamping member 71 and the second clamping member 72 to rotate. Since the gear lever portion 812 is on the rotation path of the first clamping member 71, the free end of the first clamping member 71 will touch the gear lever portion 812, and the gear lever portion 812 realizes the blocking of the first clamping member 71 and hinders the continuous rotation of the first clamping member 71. Thus, the circumferential positions of the first clamping member 71 and the second clamping member 72 are locked. When the conveying blade 400 continues to rotate, the first clamping member 71 will slide axially along the central shaft 5 under the spiral action of the conveying blade 400. During the sliding, the first clamping member 71 and the second clamping member 72 will successively pass through various parts of the conveying blade 400, scraping the glutinous rice on both side surfaces of the conveying blade 400, realizing the self-cleaning of the conveying blade 400.

[0070] Continue to refer to Figure 3 、 Figure 6 and Figure 7 , during stirring, the first clamping member 71 and the second clamping member 72 will rotate synchronously driven by the two nested spiral blades 42, but also have a tendency to slide axially along the central shaft 5. In order to lock the first clamping member 71 and the second clamping member 72 in the area of the turntable 2 and ensure the subsequent self-cleaning effect of the spiral blade 4, a ring frame 14 is fixedly arranged in the mixing box 1, and the ring frame 14 is coaxially arranged outside the turntable 2. The inner side of the ring frame 14 forms a ring groove 141, and limit rods 711 are fixedly arranged at the free ends of the first clamping member 71 and the second clamping member 72, and the limit rods 711 are fitted in the ring groove 141. In this way, when the first clamping member 71 and the second clamping member 72 rotate synchronously with the nested spiral blade 42, the limit rods 711 slide in the ring groove 141. Through the limit rods 711, the ring groove 141 realizes the locking of the axial positions of the first clamping member 71 and the second clamping member 72, avoiding the axial sliding of the first clamping member 71 and the second clamping member 72 along the central shaft 5. In this way, the first clamping member 71 and the second clamping member 72 are restricted in the area of the turntable 2, which is convenient for cleaning the conveying blade 400 subsequently, and can clean from the head end to the tail end of the conveying blade 400, ensuring the comprehensiveness and integrity of the cleaning of the conveying blade 400.

[0071] An opening 142 communicating with the ring groove 141 is provided on the ring frame 14. The opening 142 is used for the gear lever portion 812 to enter when the gear lever portion 812 moves. In this way, the gear lever portion 812 can reach the rotation path of the first clamping member 71, realizing the blocking and hindering of the first clamping member 71.

[0072] There are two locking mechanisms which are symmetric about the central axis 5. One of the locking mechanisms is used to block the first clamping member 71 when the conveying blade 400 rotates forward, so that the first clamping member 71 and the second clamping member 72 slide forward, thereby realizing self-cleaning of the conveying blade 400. The other locking mechanism is used to block the second clamping member 72 when the conveying blade 400 rotates in reverse, so that the second clamping member 72 and the first clamping member 71 slide in the reverse direction, thereby realizing the reset of the second clamping member 72 and the first clamping member 71.

[0073] In this embodiment, the driver 34 can be a hydraulic rod, an electric push rod, a cylinder or a threaded mechanism, etc. Taking the threaded mechanism as an example, it includes a screw rod 341 and a turning handle 342. The screw rod 341 is threadedly inserted through the mixing tank 1 along the axial direction of the central axis 5. One end of the screw rod 341 is rotatably connected to the kit 33, and the other end of the screw rod 341 is located outside the mixing tank 1 and is provided with a turning handle 342. By turning the turning handle 342, the rotation of the screw rod 341 can be controlled. Under the threaded action with the mixing tank 1, the screw rod 341 can perform a spiral action, thereby driving the kit 33 to slide.

[0074] In this embodiment, the pushing mechanism 82 can be a hydraulic rod, an electric push rod, a cylinder, etc., and can also include a bolt 821 threadedly inserted through the mixing tank 1. One end of the bolt 821 contacts the locking frame 81, and the other end of the bolt 821 forms a head 8211 which is convenient for manual screwing. Thus, relying on the spiral action of the bolt 821, the locking frame 81 can be pushed to slide. When the bolt 821 is reset, the return spring 811 can drive the locking frame 81 to return to its original position.

[0075] In other embodiments, a locking block mechanism can be arranged between adjacent disks 2. When the adjacent disks 2 are circumferentially misaligned, the locking block mechanism can be controlled to lock the positions of the adjacent two disks 2. The locking block mechanism can be a combination of a plurality of circumferentially evenly distributed grooves and a single spring block. The spring block limits different rotational positions of the disk 2 by engaging in each groove, thereby realizing the misalignment and locking of the disk 2. The locking block mechanism is a prior art in this field and will not be elaborated here.

[0076] Reference Figures 1 to 8 , the present invention also provides a stirring and mixing method, using the above-mentioned stirring and mixing device, including the following steps:

[0077] Enable the separation mechanism 3 to control the misalignment of multiple disks 2 and the separation of multiple spiral blades 4 from each other.

[0078] Enable the central axis 5 to rotate. The central axis 5 drives multiple disks 2 to rotate through the separation mechanism 3, and multiple spiral blades 4 stir the materials in the mixing tank 1 to make them evenly mixed.

[0079] Enable the separation mechanism 3 to control the multiple disks 2 to return to their original positions, and the multiple spiral blades 4 are fitted together to form a conveying blade 400.

[0080] Rotate the central shaft 5, and the conveying blade 400 rotates accordingly to convey materials outwards.

[0081] In the description of the present invention, it should be understood that the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0082] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0083] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations to the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A stirring and mixing device, comprising a mixing box with an open top and an auger arranged transversely in the mixing box, characterized in that the auger include: Wheel discs, multiple wheel discs are nested in layers, and two adjacent wheel discs are rotatably connected, the wheel disc at the center is coaxially connected to a central shaft, and the central shaft is rotatably assembled in the mixing box; each wheel disc is connected to a spiral blade surrounding the central shaft, and multiple spiral blades are sequentially embedded from the inside to the outside to form a conveying blade, and the diameter of the conveying blade is adapted to the inner cavity of the mixing box, so as to convey the material during rotation; A separation mechanism is arranged on the central shaft and is used to control the circumferential displacement of the plurality of wheels so as to separate the plurality of spiral blades from each other; There are three wheels, the wheel at the center is set as the central wheel, and the other two wheels are set as nested wheels. The separation mechanism includes: A moving part is assembled on the central shaft in an axially sliding manner along the central shaft; A conversion joint, wherein the two sleeved wheel discs are provided with connecting pieces extending radially along the central axis, the conversion joint is located between the two connecting pieces, and the conversion joint and the two connecting pieces are hingedly connected through connecting rods; a driving rod is hingedly connected between the conversion joint and the moving piece; The spiral blade on the center wheel disc is set as the center spiral blade, and the remaining spiral blades are set as the sleeve spiral blades. The center spiral blade and the sleeve spiral blade away from the center spiral blade are both provided with a plurality of embedding grooves, and the plurality of embedding grooves are spaced apart along the spiral direction of the center spiral blade or the sleeve spiral blade; a plurality of embedding strips are provided on both sides of the sleeve spiral blade close to the center spiral blade, and the plurality of embedding strips on one side are embedded in the embedding groove of the center spiral blade, and the plurality of embedding strips on the other side are embedded in the embedding groove of the sleeve spiral blade away from the center spiral blade.

2. The stirring and mixing device according to claim 1, characterized in that: The separation mechanism also includes: A kit (33), the kit (33) being rotatably connected to the moving member, and the rotation centers of the two are concentric with the axis of the central axis; A driver (34) is mounted on the mixing box and is used to drive the kit (33) to slide axially along the central axis.

3. The stirring and mixing device according to claim 1, characterized in that: A first clamping member (71) and a second clamping member (72) for clamping the conveying blade are provided on both sides of the conveying blade, one end of the first clamping member (71) is rotatably connected to the central axis, one end of the second clamping member (72) is sleeved on the outside of the central axis and rotatably connected to the first clamping member (71), a torsion elastic member is connected between the first clamping member (71) and the second clamping member (72), the torsion elastic member is used to make the first clamping member (71) and the second clamping member (72) move closer to each other so as to clamp the conveying blade in the middle; The mixing box is provided with a locking mechanism, which is used to block the first clamping member (71) or the second clamping member (72) when the conveying blade drives the first clamping member (71) and the second clamping member (72) to rotate, so that the circumferential positions of the first clamping member (71) and the second clamping member (72) are locked.

4. The stirring and mixing device according to claim 3, characterized in that: The locking mechanism comprises a locking frame (81) and a pushing mechanism (82); the locking frame (81) is elastically slidably connected to the mixing box along the radial direction of the central axis; the locking frame (81) has a shift rod (812); when the locking frame (81) slides, the shift rod (812) can be located on the rotation path of the first clamping member (71) or the second clamping member (72) to block the first clamping member (71) or the second clamping member (72); the pushing mechanism (82) is mounted on the mixing box and is used to push the locking frame (81) to slide.

5. The stirring and mixing device according to claim 4, characterized in that: In an initial state, the first clamping member (71) and the second clamping member (72) are adjacent to the wheel disc, a ring frame (14) is provided in the mixing box and is coaxially arranged on the outer side of the wheel disc, the inner side of the ring frame (14) forms a ring groove (141), and the free ends of the first clamping member (71) and the second clamping member (72) are both fixedly provided with a limiting rod (711), and the limiting rod (711) is engaged in the ring groove (141); the ring frame (14) is provided with an opening (142) which is connected to the ring groove (141), and the opening (142) is used for the shift rod portion (812) to enter.

6. The stirring and mixing device according to claim 3, characterized in that: There are two locking mechanisms which are symmetrical about the central axis.

7. The stirring and mixing device according to claim 1, characterized in that: An end of the mixing box away from the wheel disc is provided with a discharge port, and a shutoff door (6) for controlling the opening and closing of the discharge port is installed at the discharge port.

8. A stirring and mixing method, characterized in that: The stirring and mixing device according to claim 1 comprises the following steps: The separation mechanism controls the plurality of wheel discs to be displaced from each other, and the plurality of spiral blades to be separated from each other; The central shaft rotates, and the central shaft drives multiple wheels to rotate through the separation mechanism, and multiple spiral blades stir the materials in the mixing box to make them evenly mixed; The separation mechanism controls the plurality of wheels to return to their original positions, and the plurality of spiral blades are engaged to form a conveying blade; The central shaft rotates, and the conveying blades rotate accordingly to transport the material outwards.

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