A feed mixing and stirring device

Abstract

This invention relates to the field of mixing equipment technology, specifically disclosing a feed mixing and stirring device. A rotating frame is arranged radially along the stirring shaft of the stirrer and rotatably mounted on the stirring shaft. A transmission mechanism connects the rotating frame to the bottom surface of the mixing tank so that the rotating frame can rotate on its own axis as it revolves with the stirring shaft. Multiple spiral cutters are mounted on the periphery of the rotating frame, with the inner side of the spiral cutter forming an annular chamber for feed passage between it and the central rotating frame. Multiple pressing members are arranged radially along the stirring shaft on the stirring blades. The pressing members can elastically twist relative to the stirring blades and contact the cutting edge of the spiral cutter so that when the spiral cutter rotates, it can push the pressing members to deflect, placing them on the outer side of the spiral cutter. This feed mixing and stirring device improves the breaking and dispersing effect of agglomerated materials through the compression and restraint of the pressing members and the revolving cutting of the spiral cutter.

Description

Technical Field

[0001] This invention relates to the field of mixing equipment technology, and more specifically to a feed mixing and stirring device. Background Technology

[0002] Feed mixing is a crucial step in feed production, primarily aimed at achieving a uniform distribution of raw material components to improve feed quality and feeding outcomes. During the mixing process, raw materials are mixed in a mixer using various methods to achieve a homogeneous state, ensuring that animals consume feed that meets the formulation requirements and has a balanced distribution of components.

[0003] When mixing feed, it's common to add an appropriate amount of water. Adding water helps the fine particles and fibrous ingredients mix better, improving feed uniformity, making it easier for animals to eat, and enhancing palatability. When making pelleted feed, adding water strengthens the binding force between pellets, making them easier to form and more stable, reducing breakage during transportation and storage, and thus preserving the feed's nutritional value. However, adding water can also cause the feed to clump together, affecting its quality.

[0004] To this end, Chinese patent document CN117482778B discloses a mixing and stirring device for feed production, including a mixing chamber and a drive shaft. The drive shaft is equipped with several stirring rods spirally distributed along its surface to improve the thoroughness of mixing. Several impact cylinders are spaced apart along the axial direction of the stirring rods, and impact heads capable of reciprocating extension and retraction are installed inside the impact cylinders. When the drive shaft rotates, it can drive the stirring rods to stir the material, promoting mixing, and simultaneously cause the impact heads to reciprocate and extend, impacting and breaking up agglomerated materials.

[0005] However, because the agglomerated materials are bound together by the adhesive force of water and have a certain degree of wetness, and because the agglomerated materials are not restricted in position at the impact head, the impact head may break up or wash away the agglomerated materials, or disperse a small portion of them, while most of the agglomerated materials may still stick together. Therefore, the impact head is relatively weak in breaking up agglomerated materials. Summary of the Invention

[0006] This invention provides a feed mixing and stirring device, which aims to solve the problem in related technologies that the crushing effect of agglomerated materials is weak due to the lack of positional constraints.

[0007] The feed mixing and stirring device of the present invention includes a mixing tank and a stirrer. The stirrer is installed inside the mixing tank. A separation mechanism is embedded at the bottom of the stirring blades of the stirrer. The separation mechanism includes a rotating frame, a spiral cutter, and a pressing member. The rotating frame is arranged radially along the stirring shaft of the stirrer and is rotatably mounted on the stirring shaft. A transmission mechanism is connected between the rotating frame and the bottom surface of the mixing tank so that the rotating frame can rotate on its own axis when it revolves with the stirring shaft. The spiral cutter is fitted around the circumference of the rotating frame and is arranged in multiple ways along the circumference of the rotating frame. An annular chamber for the passage of feed is formed between the inner side of the spiral cutter and the rotating frame at the center. The pressing member is disposed on the stirring blade and is arranged in multiple ways along the radial direction of the stirring shaft. The pressing member can be elastically twisted relative to the stirring blade. The pressing member contacts the cutting edge of the spiral cutter so that when the spiral cutter rotates, it can push the pressing member to deflect so that it is outside the spiral cutter.

[0008] Its effects are as follows: When the rotating frame revolves, it drives the spiral cutter to revolve. When the agglomerated feed enters and exits the annular chamber, the spiral cutter can perform two rounds of cutting, achieving a reduction in volume and dispersion of structure. When the rotating frame drives the spiral cutter to rotate, the spiral cutter can push the pressure component to deflect, causing it to avoid the rotation of the spiral cutter. When one section of the spiral cutter's blade passes the pressure component, the pressure component is no longer restricted by the spiral cutter. Under the action of torsional elastic force, the pressure component reverses and resets, squeezing and impacting the agglomerated feed on the front side of the spiral cutter's revolving direction, forcing the agglomerated feed into the annular chamber. This avoids some of the agglomerated feed being pushed to revolve with the spiral cutter. The pressure component restricts the position of the agglomerated feed, preventing the agglomerated feed and the spiral cutter from forming a relatively static state, ensuring that the spiral cutter can stably and continuously cut the agglomerated feed. This improves the spiral cutter's ability to forcibly cut agglomerated materials, thereby improving the effect of breaking and dispersing agglomerated materials.

[0009] Preferably, the separation mechanism further includes a staggered blade unit located in the annular chamber. The staggered blade unit includes a fixed staggered blade fixed on the rotating frame and a movable staggered blade slidably mounted on the rotating frame along the radial direction of the stirring shaft. Both the fixed staggered blade and the movable staggered blade are provided with staggered blades distributed radially at intervals along the stirring shaft. Initially, the staggered blades of the fixed staggered blade and the staggered blade of the movable staggered blade are in contact. A drive mechanism is connected between the movable staggered blade and the stirring shaft. The drive mechanism is used to control the reciprocating sliding of the movable staggered blade when the rotating frame rotates.

[0010] Its effect is as follows: when the moving blade slides back and forth, its position relative to the fixed blade is misaligned. During this misalignment, the blades on both the moving and fixed blades can shear the feed within the annular chamber, further reducing its size and making it more dispersed, thus improving the quality of the output. The multiple blades enhance the shearing efficiency of the feed, allowing it to disperse more quickly.

[0011] Preferably, the driving mechanism includes a fixed disc and a mating component. The fixed disc is fixedly mounted on the side wall of the stirring shaft. The fixed disc has an annular groove concentric with the rotation center of the rotating frame, and an inclined block is provided in the annular groove. The mating component is fixedly connected to the moving blade, and one end extends and fits in the annular groove. When the rotating frame rotates, the mating component slides circumferentially in the annular groove and passes through the inclined block. The inclined block is used to force the mating component to slide radially along the stirring shaft. An elastic element is connected between the moving blade and the rotating frame to allow the moving blade to return to its original position after sliding.

[0012] Its effect is that the setting of elastic elements and inclined blocks realizes the effect of promoting the reciprocating sliding of the moving tool by utilizing the rotational power of the rotating frame.

[0013] Preferably, there are multiple inclined blocks that are spaced apart circumferentially along the annular groove.

[0014] Its effect is that the setting of multiple inclined blocks increases the frequency of the reciprocating sliding of the moving tool.

[0015] Preferably, there are multiple misaligned blade units distributed at circumferential intervals along the rotating frame.

[0016] Preferably, the end of the spiral cutter is slidably mounted on the rotating frame along the circumferential direction of the rotating frame, and the end of the spiral cutter is also connected to the rotating frame through an elastic member, which is used to reset the spiral cutter after circumferential sliding.

[0017] Its effect is as follows: when hard clumps form inside the agglomerated feed, these hard clumps may touch the spiral cutter and be difficult to cut. At this time, the hard clumps may hinder the normal cutting of subsequent agglomerated feed, causing the agglomerated feed to accumulate on the front side of the spiral cutter's revolution direction. The accumulated agglomerated feed tends to squeeze the spiral cutter during contact, which causes the spiral cutter to shift its position along the circumference of the rotating frame. This increases the pitch gap between two adjacent spiral cutters, facilitating the passage of the accumulated agglomerated material and allowing it to enter the annular chamber for subsequent cutting. This reduces the congestion on the front side of the spiral cutter's revolution direction, ensuring effective cutting.

[0018] Preferably, the transmission mechanism includes a fixed gear and a moving gear. The interior of the stirring shaft is hollow. A convex shaft is fixed to the bottom surface of the mixing tank and passes through the inside of the stirring shaft. The fixed gear is mounted on the convex shaft. The moving gear is connected to the rotating frame and the moving gear meshes orthogonally with the fixed gear.

[0019] Preferably, the stirrer includes a stirring shaft, stirring blades, and a power unit. The stirring shaft is rotatably disposed inside the mixing tank. Multiple stirring blades are distributed around the bottom of the mixing tank and along the circumference of the stirring shaft. The stirring blades are fixedly connected to the stirring shaft. The power unit is used to drive the stirring shaft to rotate.

[0020] By adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0021] When the rotating frame revolves, it drives the spiral cutter to revolve. The spiral cutter can cut agglomerated feed in two stages, reducing its volume and dispersing its structure. When the rotating frame drives the spiral cutter to rotate, the spiral cutter can push the pressure component to deflect, causing it to avoid the rotation of the spiral cutter. After one section of the spiral cutter blade passes the pressure component, under the action of torsional elastic force, the pressure component reverses and resets, squeezing and impacting the agglomerated feed on the front side of the spiral cutter's rotation direction, forcing the agglomerated feed into the annular chamber. This prevents some of the agglomerated feed from being pushed around by the spiral cutter. The pressure component restricts the position of the agglomerated feed, preventing the agglomerated feed and the spiral cutter from forming a relatively static state, ensuring that the spiral cutter can stably and continuously cut the agglomerated feed. This improves the spiral cutter's ability to forcibly cut agglomerated materials, thereby improving the effect of breaking and dispersing agglomerated materials. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external shape of the feed mixing and stirring device of the present invention.

[0023] Figure 2 This is a schematic diagram of the stirring blade and separation mechanism of the present invention.

[0024] Figure 3 This is a three-dimensional cross-sectional view of the stirring shaft to the separation mechanism portion of the present invention.

[0025] Figure 4 This is an exploded view of the wheel section to the fixed disc section of the present invention.

[0026] Figure 5 This is a three-dimensional schematic diagram of the misaligned blade unit portion of the present invention.

[0027] Figure label:

[0028] 1. Frame; 11. Boom;

[0029] 2. Mixing tank; 21. Discharge port; 22. Rotary ring; 23. Protruding shaft;

[0030] 31. Stirring shaft; 32. Stirring blades; 33. Power unit;

[0031] 4. Separation mechanism; 41. Rotating frame; 411. Central shaft; 412. Wheel disc; 4121. Arc-shaped guide groove; 42. Spiral cutter; 421. Annular chamber; 422. Guide block; 4221. Arc-shaped spring; 43. Pressure piece; 44. Fixed offset cutter; 45. Moving offset cutter; 451. Offset blade; 452. Return spring;

[0032] 51. Fixed gear; 52. Moving gear;

[0033] 61. Fixed disc body; 611. Annular groove; 612. Inclined block; 62. Mating part. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0035] The following is combined Figures 1 to 5 The feed mixing and stirring apparatus of the present invention is described.

[0036] like Figure 1 As shown, the feed mixing and stirring device of the present invention includes a frame 1, a mixing tank 2 and a stirrer.

[0037] The mixing tank 2 is fixedly installed on the frame 1 and is used to hold the various raw material components of the feed and provide a mixing space. The bottom of the mixing tank 2 is provided with a discharge port 21, and a valve is installed on the discharge port 21 to control the opening and closing of the discharge port 21.

[0038] The agitator is installed inside the mixing tank 2 and includes a stirring shaft 31, stirring blades 32, and a power unit 33. A boom 11 is fixedly mounted on the frame 1 above the mixing tank 2. The stirring shaft 31 is coaxially aligned with the mixing tank 2, with its top end rotatably connected to the boom 11, and its shaft body inserted into the mixing tank 2. Multiple stirring blades 32 are evenly distributed around the bottom of the mixing tank 2 and along the circumference of the stirring shaft 31, and are fixedly connected to the stirring shaft 31. When the stirring shaft 31 rotates, it drives the stirring blades 32 to rotate, which in turn agitates the feed at the bottom of the mixing tank 2, thus achieving uniform mixing of the feed. The power unit 33 is mounted on the boom 11 and is used to drive the stirring shaft 31 to rotate; the power unit 33 can be a motor.

[0039] Continue to refer to Figure 1 and Figure 2A separation mechanism 4 is embedded at the bottom of the stirring blade 32. The separation mechanism 4 includes a rotating frame 41, a spiral cutter 42, and a pressing component 43. The rotating frame 41 includes a central shaft portion 411 extending radially along the stirring shaft 31 and wheel portions 412 disposed at both ends of the central shaft portion 411. The wheel portions 412 and the central shaft portion 411 are coaxially arranged and integrally formed. The wheel portion 412 near the stirring shaft 31 is rotatably mounted on the side wall of the stirring shaft 31. A rotating ring 22 is rotatably embedded in the inner wall of the mixing tank 2. The wheel portion 412 near the rotating ring 22 is rotatably mounted on the rotating ring 22. This realizes the installation of the two ends of the rotating frame 41, avoiding one end of the rotating frame 41 being suspended, making the installation of the rotating frame 41 more reliable and the movement more stable. In addition, when the rotating frame 41 revolves with the stirring blade 32, the rotating frame 41 synchronously drives the rotating ring 22 to rotate, so that the feed between the stirring shaft 31 and the rotating ring 22 can be pushed together, avoiding the formation of dead zones that would hinder the revolution of the rotating frame 41.

[0040] Continue to refer to Figure 2 and Figure 3 A transmission mechanism is connected between the rotating frame 41 and the bottom surface of the mixing tank 2. The transmission mechanism includes a fixed gear 51 and a moving gear 52. The interior of the stirring shaft 31 is hollow. A convex shaft 23, coaxially inserted into the inside of the stirring shaft 31, is fixed to the bottom surface of the mixing tank 2. The fixed gear 51 is mounted on the convex shaft 23. The moving gear 52 is coaxially connected to the wheel portion 412 near the stirring shaft 31, and the moving gear 52 meshes orthogonally with the fixed gear 51. When the stirring shaft 31 drives the rotating frame 41 to revolve, the moving gear 52 revolves around the fixed gear 51. Under the meshing action of the moving gear 52 and the fixed gear 51, the moving gear 52 rotates on its own axis, thereby driving the rotating frame 41 to rotate on its own axis.

[0041] The spiral cutter 42 is located between the two disc portions 412 and is fitted on the outer periphery of the central shaft portion 411. Multiple spiral cutters 42 are evenly distributed along the circumference of the rotating frame 41. An annular chamber 421 for passing feed is formed between the inner side of the spiral cutter 42 and the central shaft portion 411.

[0042] When the rotating frame 41 revolves, it drives the spiral cutter 42 to revolve. The spiral cutter 42 can cut the clumps of feed deposited at the bottom. The cut feed enters the annular chamber 421, and then exits from the annular chamber 421 into the rear side of the spiral cutter 42 in the direction of its revolution. When exiting the annular chamber 421, the feed is cut again by the spiral cutter 42, further reducing its volume. Thus, the clumps of feed undergo two rounds of cutting when entering and exiting the annular chamber 421, achieving a reduction in volume and a dispersion of structure.

[0043] Multiple pressure members 43 are located above the spiral cutter 42. These pressure members 43 are evenly spaced radially along the stirring shaft 31. The connecting ends of the pressure members 43 are hinged to the stirring blade 32, and a torsion spring connects the connecting ends of the pressure members 43 to the stirring blade 32. This allows the pressure members 43 to elastically twist or deflect relative to the stirring blade 32. The blade of the spiral cutter 42 faces outwards and is pointed, and the pressure members 43 are in contact with the cutting edge of the spiral cutter 42.

[0044] When the rotating frame 41 rotates, it drives the spiral cutter 42 to rotate as well. During rotation, the contact surface between the spiral cutter 42 and the pressure member 43 continuously changes, thus pushing the pressure member 43 upwards until it is outside the spiral cutter 42. When one section of the spiral cutter 42 rotates out of the coverage area of ​​the pressure member 43, the pressure member 43 is no longer restricted by this section of the blade, but is in the blank area between two adjacent sections of the spiral cutter 42. Under the elastic force of the torsion spring, the pressure member 43 deflects downwards to reset, under the pressure and impact. Under the impact force, the pressing component 43 can press the clumps of feed on the front side of the spiral cutter 42 in the revolution direction into the annular chamber 421. This prevents some of the clumps of feed from being pushed around by the spiral cutter 42. The pressing component 43 restricts the position of the clumps of feed, preventing the clumps of feed and the spiral cutter 42 from forming a relatively static state, ensuring that the spiral cutter 42 can stably and continuously cut the clumps of feed. This improves the ability of the spiral cutter 42 to forcibly cut the clumps of material, thereby improving the effect of breaking and dispersing the clumps of material. During the continuous rotation of the spiral cutter 42, the pressing component 43 is lifted and lowered by the cutting edge of the spiral cutter 42, repeating this action. Thus, the pressing component 43 achieves continuous and repeated compression of the clumps of feed, realizing continuous motion. In addition, the rotation of the spiral cutter 42 can also bring the clumps of feed near the outer side towards the stirring shaft 31, preventing the clumps of feed from being in the blind zone of the spiral cutter 42 and affecting the cutting effect.

[0045] Continue to refer to Figures 2 to 4 The wheel section 412 is provided with an arc-shaped guide groove 4121 extending circumferentially and closed at both ends. The number of arc-shaped guide grooves 4121 is equal to that of the spiral cutter 42 and they correspond one-to-one. The end of the spiral cutter 42 is provided with a guide block 422 that slides in the arc-shaped guide groove 4121. The guide block 422 is connected to the wheel section 412 through an elastic member. The elastic member can be an arc-shaped spring 4221 located in the arc-shaped guide groove 4121. Under normal conditions, the arc-shaped spring 4221 presses the guide block 422 to the end of the arc-shaped guide groove 4121 until the guide block 422 contacts the end face of the arc-shaped guide groove 4121.

[0046] When the rotating frame 41 rotates, it pushes the guide block 422 to rotate through the end face of the arc-shaped guide groove 4121, thereby realizing the rotation of the spiral cutter 42. When hard clumps form inside the agglomerated feed, the hard clumps may touch the spiral cutter 42 and be difficult to cut. At this time, the hard clumps may hinder the normal cutting of subsequent agglomerated feed, so the agglomerated feed will accumulate on the front side of the spiral cutter 42 in the revolution direction. The accumulated agglomerated feed tends to squeeze the spiral cutter 42 in contact with it, which can cause the spiral cutter 42 to shift its position along the arc-shaped guide groove 4121. This increases the pitch gap between two adjacent spiral cutters 42, making it easier for the accumulated agglomerated material to pass through and enter the annular chamber 421 for subsequent cutting. This reduces the congestion of the spiral cutter 42 on the front side in the revolution direction and ensures effective cutting. The arc-shaped spring 4221 is used to automatically reset the spiral cutter 42 after the position shift.

[0047] Continue to refer to Figures 2 to 5 The separation mechanism 4 also includes a set of staggered blade units located within the annular chamber 421. Multiple staggered blade units are evenly distributed along the circumference of the rotating frame 41. Taking one staggered blade unit as an example, the unit includes a fixed staggered blade 44 and a movable staggered blade 45. The fixed staggered blade 44 is fixed to the rotating frame 41, and the movable staggered blade 45 is slidably mounted on the rotating frame 41 along the radial direction of the stirring shaft 31. Both the fixed staggered blade 44 and the movable staggered blade 45 have multiple staggered blades 451 evenly distributed along the radial direction of the stirring shaft 31. Initially, the staggered blades 451 of the fixed staggered blade 44 and the movable staggered blade 45 are in contact with each other.

[0048] A drive mechanism is connected between the moving blade 45 and the stirring shaft 31. The drive mechanism includes a fixed disc 61 and a mating component 62. The fixed disc 61 is embedded in the wheel portion 412 near the stirring shaft 31, and the fixed disc 61 and the wheel portion 412 can rotate relative to each other. The fixed disc 61 is fixedly connected to the side wall of the stirring shaft 31. The fixed disc 61 has an annular groove 611 concentric with the rotation center of the rotating frame 41. A plurality of inclined blocks 612 are fixedly arranged at equal intervals along its circumference in the annular groove 611. The inclined blocks 612 can be wedge-shaped blocks or triangular blocks. The mating component 62 is fixedly connected to the moving blade 45. One end of the mating component 62 passes through the wheel portion 412 near the stirring shaft 31 and extends into the annular groove 611, where it mates with the annular groove 611.

[0049] When the rotating frame 41 rotates, it drives the fixed offset blade 44 and the moving offset blade 45 to rotate synchronously. The moving offset blade 45 drives the mating part 62 to slide circumferentially within the annular groove 611. When the mating part 62 passes the inclined block 612, the mating part 62 contacts the inclined surface of the inclined block 612. Under the guidance of the inclined surface of the inclined block 612, the mating part 62 slides radially along the stirring shaft 31, thereby pushing the moving offset blade 45 to slide. The position of the moving offset blade 45 relative to the fixed offset blade 44 is misaligned. When the two are misaligned, the offset blades 451 on the moving offset blade 45 and the offset blades 451 on the fixed offset blade 44 can cut the feed in the annular chamber 421, further reducing the size of the feed, making the feed more dispersed, and improving the quality of the output. The setting of multiple offset blades 451 improves the cutting efficiency of the feed, allowing the feed to disperse more quickly.

[0050] An elastic element connects the moving blade 45 and the wheel section 412. The elastic element can be a return spring 452. The return spring 452 is used to automatically reset the moving blade 45 after sliding. In this way, the cooperation between the return spring 452 and the multiple inclined blocks 612 can realize the continuous reciprocating sliding of the moving blade 45, so that the shearing action of the moving blade 45 can be continuously operated.

[0051] In this embodiment, the pressing element 43 can be a strip-shaped body, a rod-shaped body, or a rake-tooth structure; the mating element 62 is usually rod-shaped, column-shaped, etc.

[0052] In other embodiments, the fixed gear 51 in the transmission mechanism can be replaced by a friction disc, and the moving gear 52 can be replaced by a friction wheel. The friction wheel and the friction disc make frictional contact, which can also realize the self-rotation of the rotating frame 41. The fixed disc 61 in the drive mechanism can be replaced by a cam column, with its cam groove located on the circumferential surface of the cam column. The mating part 62 can be replaced by a mating head, which is mated in the cam groove of the cam column. Through the mating head and the cam groove, the reciprocating sliding of the moving tool 45 can also be realized.

[0053] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A feed mixing and stirring device, comprising a mixing tank and a stirrer installed inside the mixing tank, characterized in that, A separation mechanism is embedded at the bottom of the stirring blades of the agitator, the separation mechanism comprising: A rotating frame is arranged radially along the stirring shaft of the agitator and rotatably mounted on the stirring shaft. A transmission mechanism is connected between the rotating frame and the bottom surface of the mixing tank so that the rotating frame can rotate on its own axis when it revolves with the stirring shaft. A spiral cutter, wherein multiple spiral cutters are mounted on the periphery of the rotating frame and arranged along the circumference of the rotating frame, and an annular chamber for the passage of feed is formed between the inner side of the spiral cutter and the rotating frame at the center; A pressing element is provided on the stirring blade and multiple pressing elements are arranged radially along the stirring shaft. The pressing element can be elastically twisted relative to the stirring blade. The pressing element is in contact with the cutting edge of the spiral cutter so that when the spiral cutter rotates, it can push the pressing element to deflect so that it is on the outside of the spiral cutter. It also includes a staggered blade unit located in the annular chamber. The staggered blade unit includes a fixed staggered blade fixed on the rotating frame and a movable staggered blade slidably mounted on the rotating frame along the radial direction of the stirring shaft. Both the fixed staggered blade and the movable staggered blade have staggered blades distributed radially at intervals along the stirring shaft. Initially, the staggered blades of the fixed staggered blade and the staggered blade of the movable staggered blade are in contact. A drive mechanism is connected between the movable staggered blade and the stirring shaft. The drive mechanism is used to control the reciprocating sliding of the movable staggered blade when the rotating frame rotates. The driving mechanism includes a fixed disc and a mating component. The fixed disc is fixed to the side wall of the stirring shaft and has an annular groove concentric with the rotation center of the rotating frame. An inclined block is provided in the annular groove. The mating component is fixedly connected to the moving blade and extends at one end and fits in the annular groove. When the rotating frame rotates, the mating component slides circumferentially in the annular groove and passes through the inclined block. The inclined block is used to force the mating component to slide radially along the stirring shaft. An elastic element is connected between the moving blade and the rotating frame to allow the moving blade to return to its original position after sliding.

2. The feed mixing and stirring device according to claim 1, characterized in that, The inclined blocks are multiple and distributed at intervals along the circumference of the annular groove.

3. The feed mixing and stirring device according to claim 1, characterized in that, The misaligned tool units are multiple and distributed at intervals along the circumference of the rotating frame.

4. The feed mixing and stirring device according to claim 1, characterized in that, The end of the spiral cutter is slidably mounted on the rotating frame along the circumferential limit. The end of the spiral cutter is also connected to the rotating frame through an elastic member, which is used to reset the spiral cutter after circumferential sliding.

5. The feed mixing and stirring device according to claim 1, characterized in that, The transmission mechanism includes a fixed gear and a moving gear. The interior of the stirring shaft is hollow. A convex shaft that passes through the inside of the stirring shaft is fixed on the bottom surface of the mixing tank. The fixed gear is mounted on the convex shaft. The moving gear is connected to the rotating frame and the moving gear meshes orthogonally with the fixed gear.

6. The feed mixing and stirring device according to claim 1, characterized in that, The stirrer includes a stirring shaft, stirring blades, and a power unit. The stirring shaft is rotatably disposed inside the mixing tank. Multiple stirring blades are distributed around the bottom of the mixing tank and along the circumference of the stirring shaft. The stirring blades are fixedly connected to the stirring shaft. The power unit is used to drive the stirring shaft to rotate.

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