Automatic overturning assembly for nuts

Abstract

The utility model discloses an automatic nut overturning assembly which is arranged in nut opening equipment, the nut opening equipment comprises a roller and an extrusion mechanism which are oppositely arranged and can move relatively, and the roller is provided with a containing cavity for containing nuts; the device comprises an overturning contact mechanism and a driving mechanism for driving the overturning contact mechanism to rotate, through the arrangement and cooperation of the overturning contact mechanism and the driving mechanism, the nut opening equipment can automatically overturn nuts in the containing cavity in the extrusion process; therefore, the area and the uniformity of the opening on the nut are increased, and multi-directional openings are formed on the nut, so that a user can peel the nut shell more conveniently in a labor-saving manner.

Description

Technical Field

[0001] This utility model relates to the field of manufacturing and designing nut processing equipment, and more specifically, to an automatic nut flipping component. Background Technology

[0002] Nuts, as a nutritious and uniquely flavorful food, are loved by consumers worldwide. However, the hard texture of nut shells can be quite inconvenient to eat; it often requires considerable effort and time to crack open the hard shells, which not only affects the convenience of eating them but also diminishes the overall nut-eating experience.

[0003] Therefore, nut opening has become a crucial step in the nut processing industry. Opened nuts are not only easier to eat, allowing consumers to easily enjoy their delicious flavor, but they also absorb seasonings better, further enhancing their texture and flavor.

[0004] To meet market demand for openable nuts, nut-opening devices have been designed to open nuts. For example, Chinese utility model patent CN213549556U, entitled "A Nut-Opening Device and Opening Equipment," describes a device that uses a relatively moving roller and an opening mechanism to squeeze nuts placed in the roller's cavity, thus opening the nuts. However, when squeezing nuts, this device typically only creates an opening in the area where the nut is in direct contact with the opening mechanism and the nut is in contact with the cavity and subjected to compression. The opening area is relatively limited, mainly concentrated on one side or a localized area of ​​the nut, requiring users to exert considerable effort to open the nut shells. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and provides an automatic nut-turning component with a simple structure, reasonable design, and the ability to expand the opening area.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] An automatic nut-turning assembly is provided in a nut-opening device. The nut-opening device includes a roller and a squeezing mechanism that are arranged opposite to each other and can move relative to each other. The roller is provided with a receiving cavity for placing nuts. It includes a turning contact mechanism and a drive mechanism that drives the turning contact mechanism to rotate. The roller is provided with a mating opening for the squeezing mechanism and the turning contact mechanism to enter the receiving cavity.

[0008] Furthermore, the flipping contact mechanism includes a flipping wheel; a drive mechanism cooperates with the flipping wheel and drives it to rotate; a contact part is provided along the circumference of the flipping wheel to contact the nuts in the receiving cavity.

[0009] Furthermore, the contact portion includes contact blocks, which are distributed circumferentially along the flipping wheel and extend radially outward along the flipping wheel; there is a gap between adjacent contact blocks, forming a mating space; the nut portion is located in the mating space and is flipped by the contact blocks.

[0010] Furthermore, the mating opening includes a squeezing opening and a flipping opening; the squeezing opening is disposed on the outer surface of the roller; the flipping opening is disposed in the receiving cavity; the flipping wheel is disposed in the roller, and the contact part enters the receiving cavity through the flipping opening to contact the nut.

[0011] Furthermore, the drive mechanism includes a drive shaft and a drive motor that drives the drive shaft to rotate; the drive shaft is disposed inside the roller, and the turning wheel is mounted on the drive shaft along its axial direction.

[0012] Furthermore, the roller is provided with at least one set of receiving cavities, each set of receiving cavities being composed of multiple receiving cavities arranged along the generatrix of the roller; the number and location of the receiving cavities in each set of receiving cavities correspond to each other; the axial directions of the drive shaft and the roller are consistent; the number and location of the turning wheels mounted on the drive shaft correspond to the number and location of the receiving cavities.

[0013] Furthermore, the length direction of the receiving cavity corresponds to the radial direction of the roller, and the extrusion opening and the overturning opening are located at the two ends of the receiving cavity respectively; the center points of the extrusion opening and the overturning opening are on the same straight line, and this straight line is perpendicular to the axial direction of the drive shaft.

[0014] Furthermore, the rotating wheel is provided with a mounting through hole that passes through it along its axial direction; the rotating wheel is mounted on the drive shaft through the mounting through hole.

[0015] Furthermore, the drive shaft includes an assembly shaft body and an assembly block, the assembly block being detachably mounted on both ends of the assembly shaft body; the drive motor cooperates with the assembly block to drive the assembly shaft body and the assembly block to rotate; the tilting wheel is detachably mounted on the assembly shaft body.

[0016] Furthermore, the mating space is symmetrically concave arc-shaped, and its curvature matches the surface curvature of the nut; the axis of symmetry of the mating space can be on the same straight line as the center point of both the extrusion opening and the flipping opening. Beneficial effects

[0017] In this invention, the combination of the flipping contact mechanism and the drive mechanism enables the nut opening device to automatically flip the nuts in the receiving cavity during the squeezing process; thereby increasing the area and uniformity of the openings on the nuts and forming multi-directional openings on the nuts, making it more convenient and effortless for users to peel the nuts.

[0018] In this invention, the contact part arranged along the circumference of the flipping wheel can contact the nut at different angles during rotation as much as possible, so as to drive the nut to flip.

[0019] In this invention, the contact part contacts the nut inside the receiving cavity, and the driving mechanism drives the flipping wheel to rotate, causing the nut to flip. During the flipping process, the nut is subjected to a uniform and continuous force, which helps the nut to flip stably and forms a multi-directional opening on the nut evenly and stably, thus improving the quality of the opening.

[0020] In this invention, the contact blocks are distributed circumferentially along the flipping wheel and extend radially outward, with the nut portion located within the mating space; this allows the contact blocks to contact the nut more effectively, stably driving the nut to flip and improving the nut flipping efficiency.

[0021] In this invention, since only a portion of the nut is in the mating space, rather than being entirely placed there, the risk of the nut getting stuck between the contact block and the inner wall of the receiving cavity during the flipping process is reduced; this helps to avoid jamming and malfunction of the flipping assembly, and improves the reliability and stability of the equipment.

[0022] In this invention, the extrusion opening and the flipping opening are respectively set on the outer surface of the roller and inside the receiving cavity, which optimizes the structure of the flipping component. The flipping wheel can be arranged more flexibly inside the roller without occupying external space, making the overall structure of the equipment simpler. At the same time, compared with setting the flipping wheel on the outside, it not only eliminates the structure of driving the flipping wheel into the receiving cavity, but also simplifies the process by eliminating the step of the extrusion mechanism and the flipping wheel taking turns entering the receiving cavity to cooperate with the nuts.

[0023] In this invention, the drive motor directly drives the drive shaft to rotate, and the tilting wheel is mounted on the drive shaft. This design ensures direct power transmission from the drive motor to the tilting wheel, reduces intermediate transmission links, reduces energy loss, and improves the efficiency of the tilting action. At the same time, the speed and power of the drive motor can be adjusted according to actual needs, thereby achieving precise control of the tilting speed.

[0024] In this invention, multiple sets of receiving cavities are provided on the roller, and each set of receiving cavities consists of multiple receiving cavities arranged along the roller generatrix. This design allows multiple nuts to be processed simultaneously, greatly improving the turning efficiency. At the same time, the number and position of the turning wheels are matched with the receiving cavities, ensuring that each nut can be turned evenly and effectively.

[0025] In this invention, the length direction of the receiving cavity corresponds to the radial direction of the roller. This design allows the nuts to enter and leave the receiving cavity along the radial direction of the roller; thus, after the nuts have opened, they can leave the receiving cavity by rotating the roller.

[0026] In this invention, the extrusion opening and the flipping opening are located at the two ends of the receiving cavity, and their center points are on the same straight line and perpendicular to the axial direction of the drive shaft. This allows the nut to be partially within the fitting space when the extrusion mechanism extrudes the nut, thereby improving the stability of the nut under pressure.

[0027] In this invention, the tilting wheel on the drive shaft is assembled by setting a through hole.

[0028] In this invention, the flipping wheel is detachably mounted on the drive shaft, allowing the flipping wheel to be easily replaced or adjusted according to actual needs. This not only enhances the flexibility of the component but also enables it to adapt to different types and sizes of nuts, thus improving its scalability.

[0029] In this invention, the space is designed as a symmetrical concave arc, and its curvature matches the surface curvature of the nut. This design allows the flipping wheel to better fit the nut surface when flipping the nut, and guides the nut to roll along the arc surface when the contact block approaches the inner wall of the receiving cavity, reducing the risk of the nut getting stuck between the contact block and the inner wall of the receiving cavity during the flipping process. Attached Figure Description

[0030] Figure 1 This is a structural diagram of a nut-opening device equipped with the present invention.

[0031] Figure 2 This is a structural diagram of the roller.

[0032] Figure 3 This is a structural diagram of the cavity.

[0033] Figure 4 This is a structural diagram showing the interaction between the tilting wheel, the limiting device, and the drive shaft.

[0034] Figure 5 for Figure 4 The main view.

[0035] Figure 6 This is a structural diagram of the flip wheel.

[0036] Figure 7 This is a structural diagram of the drive shaft.

[0037] Figure 8 This is a cross-sectional view of the end of the drive shaft.

[0038] Figure 9 Cross-sectional views of the ends of the main assembly shaft and the auxiliary assembly shaft.

[0039] Figure 10 This is a cross-sectional view of the assembly block and transmission unit.

[0040] Figure 11 This is a structural diagram of the limiting device.

[0041] Numbering on the map:

[0042] 1. Nut opening device; 2. Roller; 3. Tilting contact mechanism; 4. Drive mechanism; 5. Limiting device; 11. Extrusion mechanism; 12. Frame; 13. Rotating motor; 21. Receiving cavity; 22. Mating opening; 23. Extrusion opening; 24. Tilting opening; 31. Tilting wheel; 32. Contact part; 33. Assembly through hole; 41. Drive shaft; 42. Drive motor; 51. First limiting block; 52. Second limiting block; 53. Limiting space; 54. Tightening screw hole; 321. Contact block; 322. Mating space; 331. Main assembly hole; 332. Auxiliary assembly hole; 411. Assembly shaft; 412. Assembly block; 413. Main assembly shaft; 414. Auxiliary assembly shaft; 415. Mounting through hole; 416. Mounting screw hole; 417. Mounting bolt; 418. Transmission part. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments are merely specific descriptions of the present invention, and their purpose is to enable those skilled in the art to better understand the technical solution of the present invention, and should not be regarded as limitations on the present invention.

[0044] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0046] like Figure 1-11As shown, an automatic nut-turning component is installed in a nut-opening device 1. The nut-opening device 1 includes a roller 2 and a pressing mechanism 11 that are arranged opposite each other and can move relative to each other. The roller 2 is provided with a receiving cavity 21 for placing nuts. This utility model includes a turning contact mechanism 3 and a driving mechanism 4 that drives the turning contact mechanism 3 to rotate. Through the arrangement and cooperation of the turning contact mechanism 3 and the driving mechanism 4, the nut-opening device 1 can automatically turn the nuts in the receiving cavity 21 during the pressing process. This increases the area and uniformity of the openings on the nuts and forms multi-directional openings on the nuts, making it more convenient and effortless for users to peel the nuts.

[0047] The nut-opening device 1 also includes a frame 12, and a roller 2 and an extrusion mechanism 11 are all mounted on the frame 12; wherein the roller 2 is movably mounted on the frame 12; a rotating motor 13 is also provided on the frame 12, which cooperates with the roller 2 and drives it to rotate.

[0048] In this invention, the roller 2 is provided with a mating opening 22, which allows the extrusion mechanism 11 and the flipping contact mechanism 3 to enter the receiving cavity 21 and cooperate with the nuts in the receiving cavity 21 to achieve the extrusion and flipping of the nuts.

[0049] In this utility model, the flipping contact mechanism 3 includes a flipping wheel 31; a driving mechanism 4 cooperates with the flipping wheel 31 and drives it to rotate; a contact part 32 is provided along the circumference of the flipping wheel 31 to contact the nuts in the receiving cavity 21; in this embodiment, the contact part 32 is provided on the circumferential surface of the flipping wheel 31, and the contact part 32 provided along the circumference of the flipping wheel 31 can contact the nuts at different angles during rotation as much as possible, so as to drive the nuts to flip.

[0050] In this invention, the contact part 32 contacts the nut in the receiving cavity 21, and the driving mechanism 4 drives the flipping wheel 31 to rotate, so that the nut can be flipped by force; and during the flipping process, it can be subjected to a uniform and continuous force, which helps the nut to flip stably. Together with the extrusion mechanism 11, it forms a multi-directional opening on the nut evenly and stably, improving the opening quality.

[0051] In this invention, the contact portion 32 includes contact blocks 321, and the number of contact blocks 321 is at least two. The contact blocks 321 are distributed circumferentially along the flipping wheel 31 and extend outward radially along the flipping wheel 31. There is a gap between adjacent contact blocks 321, forming a mating space 322. The nut portion is located in the mating space 322 and is flipped by the contact blocks 321, so that the contact blocks 321 can contact the nut more effectively, stably drive the nut to flip, and improve the nut flipping efficiency.

[0052] In this invention, since only a portion of the nut is in the mating space 322, rather than being entirely placed therein, the risk of the nut getting stuck between the contact block 321 and the inner wall of the receiving cavity 21 during the flipping process is reduced; this helps to avoid jamming and malfunction of the flipping assembly, and improves the reliability and stability of the equipment.

[0053] It is worth noting that the number of contact blocks 321 on the contact part 32, the height of the contact blocks 321, the size of the mating space 322, and the depth of the mating space 322 can be adjusted according to actual needs; if the size of the nut that needs to be opened changes, corresponding adjustments can be made.

[0054] In this invention, the mating opening 22 includes a pressing opening 23 and a flipping opening 24; the pressing opening 23 is disposed on the outer surface of the roller 2; the flipping opening 24 is disposed within the receiving cavity 21; the flipping wheel 31 is disposed within the roller 2, and the contact portion 32 enters the receiving cavity 21 through the flipping opening 24 to contact the nut. The pressing opening 23 and the flipping opening 24 are respectively disposed on the outer surface of the roller 2 and within the receiving cavity 21, thus optimizing the structure of the flipping assembly. The flipping wheel 31 can be more flexibly arranged inside the roller 2 without occupying external space, making the overall structure of the device simpler. Furthermore, compared to placing the flipping wheel 31 externally, it not only eliminates the need for a structure to drive the flipping wheel 31 into the receiving cavity 21, but also simplifies the process by eliminating the step of the pressing mechanism 11 and the flipping wheel 31 taking turns entering the receiving cavity 21 to engage with the nut.

[0055] In this invention, the drive mechanism 4 includes a drive shaft 41 and a drive motor 42 that drives the drive shaft 41 to rotate. The drive shaft 41 is disposed inside the roller 2, and the turning wheel 31 is mounted on the drive shaft 41 along its axial direction. The drive motor 42 directly drives the drive shaft 41 to rotate, and the turning wheel 31 is mounted on the drive shaft 41. This design ensures direct power transmission from the drive motor 42 to the turning wheel 31, reduces intermediate transmission links, reduces energy loss, and improves the efficiency of the turning action. At the same time, the speed and power of the drive motor 42 can be adjusted according to actual needs, thereby achieving precise control of the turning speed.

[0056] In this utility model, the drive motor 42 is disposed inside or outside the roller 2; in this embodiment, the drive motor 42 is disposed on the frame 12, and at least one end of the drive shaft 41 protrudes from the roller 2 to cooperate with the drive motor 42, and the drive motor 42 drives the drive shaft 41 and the turning wheel 31 on the drive shaft 41 to rotate.

[0057] In this invention, the roller 2 is provided with at least one set of receiving cavities 21, each set of receiving cavities 21 is composed of multiple receiving cavities 21 arranged along the generatrix of the roller 2; the number and position of the receiving cavities 21 in each set of receiving cavities 21 correspond to each other; the axial direction of the drive shaft 41 and the roller 2 are consistent; the number and position of the flipping wheels 31 mounted on the drive shaft 41 correspond to the number and position of the receiving cavities 21; the roller 2 is provided with multiple sets of receiving cavities 21, and each set of receiving cavities 21 is composed of multiple receiving cavities 21 arranged along the generatrix of the roller 2. This design allows multiple nuts to be processed at the same time, greatly improving the flipping efficiency; at the same time, the number and position of the flipping wheels 31 match the receiving cavities 21, ensuring that each nut can be flipped evenly and effectively.

[0058] In this invention, the length direction of the receiving cavity 21 corresponds to the radial direction of the roller 2. This design allows the nuts to enter and exit the receiving cavity 21 along the radial direction of the roller 2. Furthermore, after the opening is completed, the nuts can exit the receiving cavity 21 by rotating the roller 2. The extrusion opening 23 and the flipping opening 24 are located at opposite ends of the receiving cavity 21. The center points of the extrusion opening 23 and the flipping opening 24 are on the same straight line, and this straight line is perpendicular to the axial direction of the drive shaft 41. This ensures that when the extrusion mechanism 11 extrudes the nuts, a portion of the nut can be within the mating space 322. The mating space 322 formed by adjacent contact blocks 321 provides a certain degree of restriction on the nut's position, thereby improving the stability of the nut under pressure.

[0059] In this utility model, the rotating wheel 31 is provided with a mounting through hole 33 that passes through it along its axial direction; the rotating wheel 31 is mounted on the drive shaft 41 through the mounting through hole 33; the mounting through hole 33 enables the mounting of the rotating wheel 31, and the rotating wheel 31 performs subsequent rotation work under the drive of the drive shaft 41.

[0060] In this invention, the drive shaft 41 includes an assembly shaft body 411 and an assembly block 412. The assembly block 412 is mounted on both ends of the assembly shaft body 411, and at least one end of the assembly block 412 is detachably engaged with the assembly shaft body 411. The drive motor 42 cooperates with the assembly block 412 to drive the assembly shaft body 411 and the assembly block 412 to rotate. The tilting wheel 31 is detachably mounted on the assembly shaft body 411. This allows the tilting wheel 31 to be easily replaced or adjusted according to actual needs, which not only enhances the flexibility of the component but also enables it to adapt to different types and sizes of nuts, improving its expandability. When the tilting wheel 31 is worn or damaged, it can be replaced simply, thereby reducing maintenance costs and improving the flexibility and maintainability of the component.

[0061] In this embodiment, the assembly shaft 411 includes a main assembly shaft 413 and an auxiliary assembly shaft 414, and the assembly through hole 33 includes a main assembly hole 331 that matches the main assembly shaft 413 and an auxiliary assembly hole 332 that matches the auxiliary assembly shaft 414; thereby, after the tilting wheel 31 is assembled, the assembly strength and working stability of the tilting wheel 31 can be improved through the cooperation of the auxiliary assembly shaft 414 and the auxiliary assembly hole 332.

[0062] In this embodiment, after the tilting wheel 31 is assembled, the axial center points of the tilting wheel 31, the main assembly hole 331 and the main assembly shaft 413 are on the same straight line, so that the tilting wheel 31 can remain stable during rotation.

[0063] It is worth noting that there is one main assembly hole 331, which is located at the center of the tilting wheel 31; there is at least one auxiliary assembly hole 332, which is located around the main assembly hole 331; in this embodiment, there are three auxiliary assembly holes 332, which are arranged in a triangular shape around the main assembly hole 331, and the spacing between adjacent auxiliary assembly holes 332 is the same; thus, the assembly strength and working stability of the tilting wheel 31 are higher.

[0064] In this embodiment, there are two assembly blocks 412, both of which can be detachably engaged with the main assembly shaft 413 and the auxiliary assembly shaft 414. The assembly block 412 is provided with a through mounting hole 415, and mounting screw holes 416 are provided at both ends of the main assembly shaft 413 and the auxiliary assembly shaft 414. The mounting bolt 417 passes through the through mounting hole 415 and engages with the mounting screw hole 416, thereby realizing the detachable assembly of the assembly block 412.

[0065] In this embodiment, the end of the main assembly shaft 413 is assembled and connected to the center point of the inner surface of the assembly block 412; a transmission part 418 is also provided at the center point of the outer surface of the assembly block 412, and the transmission part 418 cooperates with the drive motor 42; the drive motor 42 drives the assembly block 412 to rotate.

[0066] It should be noted that the transmission part 418 must not obstruct the mounting through hole 415; this avoids the transmission part 418 preventing the mounting bolt 417 from passing through the mounting through hole 415, thus preventing the mounting bolt 417 from engaging with the mounting screw hole 416 of the main assembly shaft 413. In this embodiment, the transmission part 418 is columnar, and its axial direction corresponds to the axial direction of the main assembly shaft 413; the radial dimension of the main assembly shaft 413 is larger than the radial dimension of the transmission part 418, thereby preventing the transmission part 418 from obstructing the mounting through hole 415.

[0067] In this embodiment, a limiting device 5 is also included. The limiting device 5 is detachably mounted on the main assembly shaft 413 and abuts against the left and right sides of the tilting wheel 31. The limiting device 5 includes a first limiting block 51 and a second limiting block 52, which together form a limiting space 53 and are mounted on the main assembly shaft 413 through the limiting space 53. The first limiting block 51 and the second limiting block 52 are provided with tightening screw holes 54 and tightening bolts that cooperate with the tightening screw holes 54. The distance between the first limiting block 51 and the second limiting block 52 and the size of the limiting space 53 are controlled by the cooperation between the tightening screw holes 54 and the tightening bolts. When the limiting device 5 is assembled, the tightening bolts are adjusted to bring the first limiting block 51 and the second limiting block 52 closer to each other and reduce the limiting space 53, thereby fixing the limiting device 5 on the main assembly shaft 413.

[0068] In this invention, the mating space 322 is a symmetrical concave arc shape, and its curvature matches the curvature of the nut surface. This design allows the flipping wheel 31 to better fit the nut surface when flipping the nut, and guides the nut to roll along the arc surface when the contact block 321 is close to the inner wall of the receiving cavity 21, reducing the risk of the nut getting stuck between the contact block 321 and the inner wall of the receiving cavity 21 during the flipping process.

[0069] In this embodiment, the axis of symmetry of the space 322 is aligned with the center point of both the compression opening 23 and the flipping opening 24, further improving the stability of the nut under pressure.

[0070] It is worth noting that the other technical solutions of this utility model are all existing technologies, and therefore will not be described in detail.

[0071] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the concept of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic nut-turning assembly, disposed in a nut-opening device, the nut-opening device comprising a roller and a pressing mechanism arranged opposite to each other and capable of relative movement, the roller having a receiving cavity for placing nuts; characterized in that, It includes a flipping contact mechanism and a drive mechanism that rotates the flipping contact mechanism; The roller is provided with a mating opening for the extrusion mechanism and the flipping contact mechanism to enter the receiving cavity.

2. The nut-automatic flipping component according to claim 1, characterized in that, The flipping contact mechanism includes a flipping wheel; a drive mechanism cooperates with the flipping wheel and drives it to rotate; A contact part is provided along the circumference of the flipping wheel to contact the nuts inside the receiving cavity.

3. The nut-automatic flipping component according to claim 2, characterized in that, The contact part includes contact blocks, which are distributed circumferentially along the flipping wheel and extend radially outward along the flipping wheel; there is a gap between adjacent contact blocks, forming a mating space; the nut part area is in the mating space and is flipped by the contact blocks.

4. The nut-automatic flipping component according to claim 2 or 3, characterized in that, The mating opening includes a compression opening and a flipping opening; The extrusion opening is located on the outer surface of the roller; the flipping opening is located inside the receiving cavity; The flipping wheel is located inside the roller, and the contact part enters the receiving cavity through the flipping opening to contact the nut.

5. The nut-automatic flipping component according to claim 4, characterized in that, The drive mechanism includes a drive shaft and a drive motor that drives the drive shaft to rotate; the drive shaft is disposed inside the roller, and the turning wheel is mounted on the drive shaft along its axial direction.

6. The nut-automatic flipping component according to claim 5, characterized in that, The roller is provided with at least one set of receiving cavities, and each set of receiving cavities is composed of multiple receiving cavities arranged along the generatrix of the roller; the number and location of the receiving cavities in each set of receiving cavities correspond to each other; The drive shaft and the roller are aligned in the same axial direction; The number and position of the tilting wheels mounted on the drive shaft correspond to the number and position of the receiving cavities.

7. The nut-automatic flipping component according to claim 6, characterized in that, The length direction of the receiving cavity corresponds to the radial direction of the roller, and the extrusion opening and the overturning opening are located at the two ends of the receiving cavity respectively; the center points of the extrusion opening and the overturning opening are on the same straight line, and this straight line is perpendicular to the axial direction of the drive shaft.

8. The nut-automatic flipping component according to claim 6, characterized in that, The rotating wheel is provided with a mounting through hole that passes through it along its axial direction; the rotating wheel is mounted on the drive shaft through the mounting through hole.

9. The nut-automatic flipping component according to claim 8, characterized in that, The drive shaft includes an assembly shaft body and an assembly block, the assembly block being detachably mounted on both ends of the assembly shaft body; the drive motor cooperates with the assembly block to drive the assembly shaft body and the assembly block to rotate; the tilting wheel is detachably mounted on the assembly shaft body.

10. The nut-automatic flipping component according to claim 3, characterized in that, The mating space is symmetrically concave arc-shaped, and its curvature matches the curvature of the nut surface; the axis of symmetry of the mating space can be on the same straight line as the center point of both the extrusion opening and the flipping opening.

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