Macadamia nut opening machine
By designing a clamping and flipped and vertically cut Hawaiian fruit opening machine, the problem of traditional opening machine causing the kernel to be stuck, achieving even cracking of the fruit shells, making it easier to remove the kernels.
Patent Information
- Application Number
- CN202510858819.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-25
- Publication Date
- 2025-07-29
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional hawaiian fruit opening machines can only cut out a "one" shape opening, resulting in uneven cracking of the fruit shell and some of the kernels stuck in the shell, affecting consumption.
A mawaiian nut opening machine is designed, using a clamping mechanism to clamp the mawaiian nut and flip it 180 degrees, and vertically cut the "cross" shape opening with the upper and lower cutting mechanism, and cut the fruit shell with an expansion ring and a saw blade.
The mawaiian nut shells are evenly cracked into four petals, which facilitates the complete removal of the kernels and improves the convenience of consumption.
Smart Images
Figure CN120381131A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of nut processing, and specifically to a macadamia nut opening machine. Background Art
[0002] Macadamia nuts, a type of nut, have a hard shell texture. In order to facilitate the consumption of the nuts inside, it is often necessary to cut an opening on them. Generally, only a "one"-shaped opening is cut on the shell of traditional macadamia nuts. When the macadamia nut shell is opened under this opening, it splits into two petals. If the two opened petals are uneven, there will always be some nuts stuck in the shell. Since the nuts are relatively fragile, it is not convenient to take out the nuts from the stuck shell, thus affecting the consumption of the nuts. Summary of the Invention
[0003] The purpose of the present invention is to provide a macadamia nut opening machine to overcome the above-mentioned defects in the prior art.
[0004] According to a macadamia nut opening machine of the present invention, it includes a base. An opening assembly capable of making a "cross"-shaped opening on the macadamia nut is arranged on the upper side of the base. The opening assembly includes a clamping mechanism for clamping the macadamia nut and capable of flipping it 180 degrees. Cutting mechanisms for cutting the shell of the macadamia nut are arranged on both the upper and lower sides of the clamping mechanism. The cutting directions of the cutting mechanisms on the upper and lower sides are perpendicular to each other and both parallel to the clamping mechanism; The clamping mechanism includes a plurality of equally spaced clamping plates. The clamping plate includes an upper clamping plate and a lower clamping plate. A plurality of circular holes are opened on both the upper clamping plate and the lower clamping plate, which are equally spaced parallel to the length direction of the clamping plate and penetrate along the thickness direction. The edges of the circular holes on the upper clamping plate are folded downward to form an upper through hole, and the edges of the circular holes on the lower clamping plate are folded upward to form a lower through hole. A circle of expansion rings is fixed between the upper through hole and the lower through hole. The upper clamping plate and the lower clamping plate are fixedly connected. A cavity is formed inside the clamping plate. Injecting air into the cavity causes the expansion rings to expand towards the direction close to their axis to clamp the macadamia nut; The cutting mechanism includes a rotating shaft and a plurality of saw blades fixed on the rotating shaft. Both ends of the rotating shaft are rotatably connected to a connecting seat. A first motor is fixed on one of the connecting seats. One end of the rotating shaft is fixed on the output shaft of the first motor. A moving seat is fixed on the connecting seat. A screw rod is threadedly connected inside the moving seat. Rotating the screw rod causes the saw blade to move in a straight line.
[0005] Through the above technical solution, macadamia nuts are placed in the upper and lower through-holes. Air is injected into the cavity inside the clamping plate, causing the expansion ring to expand towards its axis to clamp the macadamia nuts. The first motor on the upper side starts first, driving the saw blade to rotate. The screw rotates to drive the moving seat to move, driving the saw blade to cut the shell of the macadamia nut. After the clamping plate drives the macadamia nut to flip 180 degrees, the first motor on the lower side starts, and at the same time the screw on the lower side rotates, driving the saw blade to move along the direction perpendicular to the moving direction of the upper saw blade, so as to cut a "cross" opening in the macadamia nut, enabling the shell of the macadamia nut to break into four pieces under prying.
[0006] Further, a semi-cylindrical tube is fixed to one end of each of the upper clamping plate and the lower clamping plate, and a semi-cylindrical column is fixed to the other end. The two semi-cylindrical tubes form a hollow cylinder and are communicated with the cavity inside the clamping plate. The two semi-cylindrical columns form a solid cylinder. The folding edges are formed by folding the outer edges of the expansion ring and the lower clamping plate towards the side close to each other. The folding edge of the expansion ring abuts against the folding edge of the lower clamping plate. The expansion ring and the lower clamping plate are fixedly connected by bolts.
[0007] Through the above technical solution, the hollow cylinder formed by the semi-cylindrical tubes facilitates the injection of air into the cavity inside the clamping plate through the hollow cylinder.
[0008] Further, casings are provided on both sides of the clamping mechanism. The casing includes a sealing cover and a housing. The hollow cylinder formed by the semi-cylindrical tubes is rotatably connected to one of the sealing covers, and the solid cylinder formed by the semi-cylindrical columns is rotatably connected to the other sealing cover. An air vent groove is provided inside the housing. A sliding groove is provided on the bottom wall of the air vent groove. One end of the air vent groove close to the clamping plate is open. The sealing cover is fixed at the opening of the housing. The hollow cylinder formed by the semi-cylindrical tubes is communicated with the air vent groove. A micro air pump communicated with the air vent groove is fixed on the housing close to the semi-cylindrical tube.
[0009] Through the above technical solution, after the micro air pump starts to inject air into the air vent groove, the air is injected into the cavity inside the clamping plate through the hollow cylinder formed by the semi-cylindrical tubes.
[0010] Further, a gear is fixed to the end of the solid cylinder formed by the semi-cylindrical columns. A rack meshing with the gear is slidably connected in the sliding groove close to the semi-cylindrical column. A telescopic cylinder is fixed to the housing close to the semi-cylindrical column. The piston rod of the telescopic cylinder is fixedly connected to the rack.
[0011] Through the above technical solution, the telescopic movement of the piston rod on the telescopic cylinder can drive the rack to slide in the sliding groove, thereby driving the gear to rotate.
[0012] Further, the expansion ring is made of rubber. The upper edge of the expansion ring is fixedly connected to the lower edge of the upper through - hole, and the lower edge of the expansion ring is fixedly connected to the lower edge of the lower through - hole.
[0013] Through the above - mentioned technical solution, the expansion ring made of rubber can ensure its expansion under the action of air pressure.
[0014] Further, the diameter of the lower through - hole gradually decreases from top to bottom, and the maximum diameter of the lower through - hole is the same as the diameter of the upper through - hole.
[0015] Through the above - mentioned technical solution, after the macadamia nut falls into the upper through - hole, it can be received by the lower through - hole, so that the macadamia can be kept within the expansion ring.
[0016] Further, two connecting rods are fixed between the two connecting seats. Support plates are arranged in parallel on both sides of the cutting mechanism. Both ends of the screw rod are respectively rotatably connected to the two support plates. Two second motors are fixed on one of the support plates, and the end of the screw rod is fixed on the output shaft of the second motor.
[0017] Through the above - mentioned technical solution, the setting of the connecting rods increases the connection stability between the two moving seats and the two connecting seats.
[0018] The beneficial effects of the present invention are as follows: The macadamia nut is placed in the upper through - hole and the lower through - hole. Inject air into the cavity within the clamping plate, then the expansion ring expands towards the direction close to its axis to clamp the macadamia nut. The first motor on the upper side starts first, driving the saw blade to rotate. The screw rod rotates to drive the moving seat to move, thereby driving the saw blade to cut the shell of the macadamia nut. After the clamping plate drives the macadamia nut to flip 180 degrees, the first motor on the lower side starts, and at the same time, the screw rod on the lower side rotates, driving the saw blade to move along the direction perpendicular to the moving direction of the upper - side saw blade, so as to realize cutting a "cross" - shaped opening on the macadamia nut, enabling the shell of the macadamia nut to break into four pieces under prying. Description of the Drawings
[0019] Figure 1 is the structural schematic diagram of the present invention; Figure 2 is the installation schematic diagram of the micro - air pump in the present invention; Figure 3 is the exploded view of the clamping mechanism and the cutting mechanism in the present invention; Figure 4 is the structural schematic diagram of the cutting mechanism in the present invention; Figure 5 is the exploded view of the cutting mechanism in the present invention; Figure 6 is the structural schematic diagram of the clamping plate in the present invention; Figure 7 is the cross - sectional view of the clamping plate in the present invention; Figure 8 is a schematic enlarged view of part A in the present invention Figure 7 ; Figure 9 is an exploded view of the clamping plate in the present invention
[0020] In the figure: 10. Base; 11. Support rod; 20. Housing; 21. Telescopic cylinder; 22. Micro air pump; 23. Sealing cover; 24. Slide groove; 25. Vent groove; 30. Support plate; 40. Moving seat; 41. Saw blade; 42. Second motor; 43. Connecting seat; 44. Positioning bushing; 45. Connecting rod; 46. Rotating shaft; 47. First motor; 48. Positioning ring; 49. Limiting piece; 50. Upper clamping plate; 51. Gear; 52. Semi-cylinder; 53. Lower clamping plate; 54. Upper through hole; 55. Expansion ring; 56. Semi-cylindrical tube; 57. Lower through hole; 60. Screw rod Specific embodiments
[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the Figure 1 orientation or positional relationship shown, and is only for the convenience of simplifying the description of the present invention, 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, and thus should not be construed as a limitation to the present invention
[0022] In order to make the purpose and advantages of the present invention clearer, the present invention will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention. As used herein, the terms up and down and left and right do not limit their strict geometric definitions, but include tolerances for machining or human errors that are reasonable and inconsistent. The specific features of this macadamia nut opener will be described in detail below: An embodiment of the present invention: Referring to Figures 1-9 , the present invention provides a macadamia nut opener, including a base 10. An opening assembly for opening a "cross" opening in macadamia nuts is fixed on the upper side of the base 10 through a plurality of support rods 11. The opening assembly includes a clamping mechanism for clamping macadamia nuts and capable of flipping them 180 degrees. Cutting mechanisms for cutting the nut shells of macadamia nuts are arranged on both the upper and lower sides of the clamping mechanism. The cutting directions of the cutting mechanisms on both the upper and lower sides are perpendicular to each other and parallel to the clamping mechanism The clamping mechanism includes a plurality of clamping plates evenly distributed at equal intervals. The clamping plates include an upper clamping plate 50 and a lower clamping plate 53. A plurality of round holes are formed in both the upper clamping plate 50 and the lower clamping plate 53, which are evenly distributed parallel to their length directions and penetrate through their thickness directions. The edges of the round holes on the upper clamping plate 50 are folded downward to form an upper through opening 54, and the edges of the round holes on the lower clamping plate 53 are folded upward to form a lower through opening 57. A circular expansion ring 55 is fixed between the upper through opening 54 and the lower through opening 57. The upper clamping plate 50 and the lower clamping plate 53 are fixedly connected to each other, and a cavity is formed inside the clamping plate. Air is injected into the cavity to cause the expansion ring 55 to expand towards the direction close to its axis to clamp macadamia nuts. The cutting mechanism includes a rotating shaft 46 and a plurality of saw blades 41 fixed on the rotating shaft 46. The saw blades 41 are aligned one by one with the axis of the expansion ring 55. A positioning shaft sleeve 44 sleeved on the rotating shaft 46 is arranged between two adjacent saw blades 41. A positioning ring 48 that abuts against the saw blade 41 and is fixed on the rotating shaft 46 is arranged between the two saw blades 41 closest to the connecting seat 43 and the connecting seat 43. The arrangement of the positioning shaft sleeve 44 and the positioning ring 48 improves the positioning accuracy of the saw blades 41. Both ends of the rotating shaft 46 are rotatably connected to a connecting seat 43. A first motor 47 is fixed on one of the connecting seats 43, and one end of the rotating shaft 46 is fixed on the output shaft of the first motor 47. A moving seat 40 is fixed on the connecting seat 43. A screw rod 60 is threadedly connected inside the moving seat 40. Rotating the screw rod 60 causes the saw blade 41 to move linearly.
[0023] Refer to Figure 6 、 Figure 9 One end of both the upper clamping plate 50 and the lower clamping plate 53 is fixed with a semi-cylindrical tube 56, and the other end is fixed with a semi-cylinder 52. The two semi-cylindrical tubes 56 form a hollow cylinder and are communicated with the cavity inside the clamping plate. The two semi-cylinders 52 form a solid cylinder. The outer edges of the expansion ring 55 and the lower clamping plate 53 are folded towards each other to form flanges. The flanges of the expansion ring 55 and the lower clamping plate 53 are in mutual abutment, and the expansion ring 55 and the lower clamping plate 53 are fixedly connected by bolts.
[0024] Refer to Figure 3 、 Figure 6, the clamping mechanism is provided with casings on both sides. The casing includes a sealing cover 23 and a casing 20. A hollow cylinder composed of semi-cylinders 56 is rotatably connected to one of the sealing covers 23, and a solid cylinder composed of semi-cylinders 52 is rotatably connected to the other sealing cover 23. An air vent groove 25 is formed in the casing 20, and a sliding groove 24 is formed in the bottom wall of the air vent groove 25. One end of the air vent groove 25 close to the clamping plate is open. The sealing cover 23 is fixed at the opening of the casing 20. The hollow cylinder composed of semi-cylinders 56 communicates with the air vent groove 25. A micro air pump 22 communicating with the air vent groove 25 is fixed on the casing 20 close to the semi-cylinder 56. The model of the micro air pump 22 is the common brushless micro air pump F upper clamping plate 50-PD for both pumping and inflating on the market. The micro air pump 22 realizes the switching of the pumping and exhaust ports through a two-position four-way solenoid valve, so as to realize the two functions of pumping and inflating. A gear 51 (the tooth shape on the outer circumference of the gear 51 is not drawn) is fixed at the end of the solid cylinder composed of semi-cylinders 52. A rack meshing with the gear 51 is slidably connected in the sliding groove 24 close to the semi-cylinder 52. A telescopic cylinder 21 is fixed on the casing 20 close to the semi-cylinder 52. The piston rod of the telescopic cylinder 21 is fixedly connected to the rack.
[0025] Refer to Figures 6-9 , the expansion ring 55 is made of rubber. The upper edge of the expansion ring 55 is fixedly connected to the lower edge of the upper through port 54, and the lower edge of the expansion ring 55 is fixedly connected to the lower edge of the lower through port 57. The diameter of the lower through port 57 gradually decreases from top to bottom, and the maximum diameter of the lower through port 57 is the same as the diameter of the upper through port 54.
[0026] Refer to Figures 1-5 , two connecting rods 45 are fixed between the two connecting seats 43. Through holes coinciding with the axis of the connecting rods 45 are formed on both the connecting seats 43 and the moving seat 40. Two limiting pieces 49 are fixed on the two connecting rods 45. The connecting rods 45 pass through the through holes on the connecting seats 43 and the moving seat 40. A thread (not drawn) is provided on the part of the connecting rod 45 between the limiting piece 49 and the end of the connecting rod 45. The limiting piece 49 abuts against the connecting seat 43. By tightening the nut on the threaded part of the connecting rod 45, the connecting rod 45 is fixed on the connecting seat 43 and the moving seat 40. Support plates 30 are arranged in parallel on both sides of the cutting mechanism. Both ends of the screw rod 60 are rotatably connected to the two support plates 30 respectively. Two second motors 42 are fixed on one of the support plates 30. The end of the screw rod 60 is fixed to the output shaft of the second motor 42.
[0027] When the present invention is in use, macadamia nuts are placed one by one in the expansion ring 55. Then, the two-position four-way solenoid valve is controlled to switch the micro air pump 22 to the inflation function. Then, the micro air pump 22 is started, and the micro air pump 22 injects gas into the ventilation groove 25. The gas is injected into the clamping plate through the hollow cylinder composed of the semi-cylindrical tubes 56, so that the pressure inside it increases, so that the expansion ring 55 expands towards the direction close to its axis, thereby clamping the macadamia nuts.
[0028] At this time, the upper first motor 47 is started, which drives the upper rotating shaft 46 to rotate, and further makes the upper saw blade 41 rotate. At the same time, the upper second motor 42 is started, which drives the upper screw rod 60 to rotate, and further makes the upper saw blade 41 move along the screw rod 60, so as to cut a "one"-shaped incision on the macadamia nut shell. When the upper saw blade 41 moves to the other side of the clamping mechanism, the upper first motor 47 and the upper second motor 42 are turned off.
[0029] Then, the telescopic cylinder 21 is started, so that the telescopic rod of the telescopic cylinder 21 extends, thereby driving the rack in the chute 24 to move a length equal to half of the outer circumference of the moving gear 51, thereby driving the gear 51 to rotate half a turn, so that the clamping plate rotates 180 degrees, so that the macadamia nut driven by the slave flips to the lower side of the clamping mechanism.
[0030] At this time, the lower second motor 42 and the lower first motor 47 are started, so that the lower saw blade 41 cuts the macadamia nut along a direction perpendicular to the moving direction of the upper saw blade 41, so that a "one"-shaped incision perpendicular to the original "one"-shaped incision is cut on the macadamia nut shell, and the two cuts form a "cross"-shaped incision.
[0031] When eating a macadamia nut with a cross-shaped incision, use a macadamia nut shell opener (i.e., a "T"-shaped iron sheet) to rotate along one of the incisions, then the macadamia nut is split in half. If the split macadamia nut is asymmetric at this time, resulting in some kernels being stuck in it, then the macadamia nut shell opener can be used to pry it open again along the opening on the split half of the macadamia nut shell, then the macadamia nut shell splits from one-half to one-fourth, so as to eat the part of the kernel stuck in the original one-half macadamia nut shell.
[0032] Finally, the two-position four-way solenoid valve is controlled to switch the micro air pump 22 to the air extraction function, then the air in the clamping plate is extracted by the micro air pump 22, so that the expansion ring 55 returns to its initial state, and the cut macadamia nuts fall from the upper through hole 54. Then, the telescopic rod of the telescopic cylinder 21 shortens, the rack resets, and the clamping plate reverses 180 degrees, so that the clamping plate returns to its initial state.
[0033] Those skilled in the art can clearly understand that various modifications to the above embodiments can be made without departing from the general spirit and concept of the present invention. All of them fall within the protection scope of the present invention. The protection scope of the present invention shall be subject to the appended claims of the present invention.
Claims
1. A macadamia nut cracking machine, comprising a base (10), characterized in that: An opening component capable of making a "cross" opening in macadamia nuts is provided on the upper side of the base (10). The opening component includes a clamping mechanism for clamping macadamia nuts and capable of flipping them 180 degrees. Cutting mechanisms for cutting the shells of macadamia nuts are provided on both the upper and lower sides of the clamping mechanism. The cutting directions of the cutting mechanisms on the upper and lower sides are perpendicular to each other and parallel to the clamping mechanism; The clamping mechanism includes a plurality of equally spaced clamping plates. The clamping plates include an upper clamping plate (50) and a lower clamping plate (53). A plurality of circular holes are provided on both the upper clamping plate (50) and the lower clamping plate (53), which are equally spaced parallel to their length directions and penetrate along their thickness directions. The edges of the circular holes on the upper clamping plate (50) are folded downward to form an upper through-hole (54). The edges of the circular holes on the lower clamping plate (53) are folded upward to form a lower through-hole (57). A circular expansion ring (55) is fixed between the upper through-hole (54) and the lower through-hole (57). The upper clamping plate (50) and the lower clamping plate (53) are fixedly connected. A cavity is formed inside the clamping plate. Air is injected into the cavity to make the expansion ring (55) expand towards the direction close to its axis to clamp the macadamia nuts; The cutting mechanism includes a rotating shaft (46) and a plurality of saw blades (41) fixed on the rotating shaft (46). Both ends of the rotating shaft (46) are rotatably connected to a connecting seat (43). A first motor (47) is fixed on one of the connecting seats (43). One end of the rotating shaft (46) is fixed on the output shaft of the first motor (47). A moving seat (40) is fixed on the connecting seat (43). A screw rod (60) is threadedly connected inside the moving seat (40). The rotation of the screw rod (60) makes the saw blade (41) move in a straight line.
2. The macadamia nut cracking machine according to claim 1, characterized in that: One end of both the upper clamping plate (50) and the lower clamping plate (53) is fixed with a semi-cylindrical tube (56), and the other end is fixed with a semi-cylinder (52). The two semi-cylindrical tubes (56) form a hollow cylinder and communicate with the cavity inside the clamping plate. The two semi-cylinders (52) form a solid cylinder. The outer edges of the expansion ring (55) and the lower clamping plate (53) are folded towards the side close to each other to form folded edges. The folded edge of the expansion ring (55) and the folded edge of the lower clamping plate (53) are in mutual contact. The expansion ring (55) and the lower clamping plate (53) are fixedly connected by bolts.
3. The macadamia nut cracking machine according to claim 2, wherein: On both sides of the clamping mechanism, there are housing casings. The housing casing includes a sealing cover (23) and a housing body (20). The hollow cylinder composed of semi-cylinders (56) is rotatably connected to one of the sealing covers (23), and the solid cylinder composed of semi-cylinders (52) is rotatably connected to the other sealing cover (23). An air vent groove (25) is formed in the housing body (20). A sliding groove (24) is formed in the bottom wall of the air vent groove (25). One end of the air vent groove (25) close to the clamping plate is open. The sealing cover (23) is fixed at the opening of the housing body (20). The hollow cylinder composed of semi-cylinders (56) communicates with the air vent groove (25). A micro air pump (22) communicating with the air vent groove (25) is fixed on the housing body (20) close to the semi-cylinders (56).
4. The macadamia nut opening machine according to claim 3, characterized in that: A gear (51) is fixed at the end of the solid cylinder composed of semi-cylinders (52). A rack meshing with the gear (51) is slidably connected in the sliding groove (24) close to the semi-cylinders (52). A telescopic cylinder (21) is fixed on the housing body (20) close to the semi-cylinders (52). The piston rod of the telescopic cylinder (21) is fixedly connected to the rack.
5. The macadamia nut cracking machine according to claim 1, wherein: The expansion ring (55) is made of rubber. The upper edge of the expansion ring (55) is fixedly connected to the lower edge of the upper through-port (54), and the lower edge of the expansion ring (55) is fixedly connected to the lower edge of the lower through-port (57).
6. The macadamia nut cracking machine according to claim 5, characterized in that: The diameter of the lower through-port (57) gradually decreases from top to bottom, and the maximum diameter of the lower through-port (57) is the same as the diameter of the upper through-port (54).
7. The macadamia nut cracking machine according to claim 1, wherein: Two connecting rods (45) are fixed between the two connecting seats (43). Two support plates (30) are arranged in parallel on both sides of the cutting mechanism. Both ends of the screw rod (60) are rotatably connected to the two support plates (30) respectively. Two second motors (42) are fixed on one of the support plates (30). The end of the screw rod (60) is fixed on the output shaft of the second motor (42).