CN112655985A - High-efficient screening opening all-in-one of notched circular nut of marching type material loading river word - Google Patents

Abstract

The invention discloses a circular nut high-efficiency screening and opening integrated machine with a step-by-step feeding III-shaped notch, which comprises a workbench, wherein three transmission shaft bases are arranged on the upper matrix at the rear end of the workbench, transmission shafts are inserted in the transmission shaft bases, a rectangular opening is formed in the top surface of the workbench between the two transmission shaft bases, a blanking inclined plane is arranged below the rectangular opening at the left end of the workbench, a left notch mechanism and a right notch mechanism are respectively arranged at the two rectangular openings, a U-shaped limiting device is arranged above the two transmission shaft bases and comprises a front vertical rod and a rear vertical rod, the III-shaped notch is formed in one step, the difficulty generated when the nut is eaten after the nut is singly notched and the shell is opened at the later stage is solved, the work efficiency of opening is greatly improved, the qualification rate of products is greatly improved, and finally, because manual positioning is not needed, the potential safety hazard can not be caused, the safety performance is greatly improved, and the method is suitable for large-scale popularization.

Description

High-efficient screening opening all-in-one of notched circular nut of marching type material loading river word

Technical Field

The invention relates to the technical field of food processing, in particular to a stepping feeding and III-shaped notched round nut efficient screening and opening integrated machine.

Background

Nuts, a classification of closed fruit, have a hard pericarp and contain 1 or more seeds. Such as Chinese chestnut, hazelnut, macadamia nut and other fruits, the nuts are the essential parts of plants, are generally rich in nutrition, contain high protein, grease, mineral substances and vitamins, and have excellent effects on the growth and development of human bodies, the physique enhancement and the disease prevention.

The nuts are generally fried, the frying is the most important and common manufacturing method, people need to perform corresponding incision operation before frying, namely, a small incision is cut on a hard shell to facilitate flavor entry and can be peeled off conveniently in later stage eating, due to the fact that the circular nuts are different in shape and size, the cutting depth is different during incision, the nuts can be damaged due to too large and too deep incisions, or due to too small and too shallow incisions, the incisions cannot be cut, so that a plurality of nuts are not subjected to incision processing, later-stage eating is not facilitated, due to the fact that the nut shell is too hard and a single incision is formed, the nuts cannot be peeled off at one time to take out the fruits, when the nuts are cut by the single-knife incision, when the nuts are cut by the second knife and the third knife, in order to avoid cutting the position of the first knife, manual positioning is needed, and the incision is repeatedly performed, the production speed is low, the positioning is performed manually, the size of the cut of the product is inconsistent due to certain deviation of manual operation, the qualified rate of the product is lowered, and finally hidden danger is caused to the self safety of operators.

Based on the technical scheme, the invention designs the stepping feeding III-shaped cut round nut efficient screening and opening all-in-one machine to solve the problems.

Disclosure of Invention

The invention aims to provide a circular nut efficient screening and opening all-in-one machine with a step-type feeding III-shaped notch, which aims to solve the problems that in the background technology, the shapes and sizes of circular nuts are different, the cutting depth is different during the process of cutting, the nuts are possibly too large and the notches are too deep, so that fruit grains inside the nuts are damaged, the nuts are also possibly too small and the notches are too shallow, so that the notches cannot be cut, a plurality of nuts are not subjected to notch processing and are inconvenient to eat at a later period, and because the nut shells are too hard and a single notch cannot be peeled off at one time to take out the fruit grains, when the nuts are cut by a single-knife notch, when a second knife and a third knife are cut, in order to avoid cutting the position of a first knife, manual positioning is needed, the notches are repeatedly performed, so that the production speed is slow, and the manual positioning is caused by certain deviation due to, the sizes of the cut of the products are inconsistent, the qualification rate of the products is lowered, and finally, the problem of hidden danger is caused to the self safety of operators.

In order to achieve the purpose, the invention provides the following technical scheme:

a stepping feeding Chuan character cut round nut high-efficiency screening and opening all-in-one machine comprises a workbench, wherein three transmission shaft bases are arranged on an upper matrix at the rear end of the workbench, transmission shafts are inserted into the transmission shaft bases, a rectangular opening is formed in the top surface of the workbench between the two transmission shaft bases, a blanking inclined plane is arranged below the rectangular opening at the left end of the workbench, a left notching mechanism and a right notching mechanism are respectively arranged at the two rectangular openings, a U-shaped limiting device is arranged above the two transmission shaft bases and comprises a front vertical rod and a rear vertical rod, a cross rod is arranged between the front vertical rod and the rear vertical rod, limiting rotating wheels are respectively arranged at the centers of the front rod, the rear vertical rod and the cross rod, the left notching mechanism and the right notching mechanism are arranged on the transmission shafts, the left notching mechanism comprises rotating wheels, and three notches are uniformly arranged on the outer rings of the rotating wheels, the breach department is provided with incision mechanism and holds the material round hole, incision mechanism includes left cutting arm, right cutting arm, well cutting arm, left side cutting arm and right cutting arm tail end cup joint on the support column of breach tail end, be provided with the slide bar between left side cutting arm and the right cutting arm, the spring has been cup jointed on the slide bar, well cutting arm tail end passes through the hinge setting at the breach tail end, through first slide bar connection between well cutting arm and the breach, be provided with first spring on the first slide bar, left side cutting arm, right side cutting arm, well inside battery and the motor of being provided with of cutting arm, the motor output is provided with the cutting blade disc, hold the material round hole and be provided with left incision, right incision, back incision all around, the transmission shaft right-hand member is provided with the motor.

As a further scheme of the invention, the left notching mechanism and the right notching mechanism have the same structure, and the difference is that the material bearing circular holes at the notches of the left notching mechanism and the right notching mechanism are different in size.

As a further scheme of the invention, a feeding device is arranged at the upper part of the front end of the workbench and comprises a motor cover, a second motor is arranged in the motor cover, a material screening gear turntable is arranged at the output end of the second motor, a limiting turntable cover is arranged at the rear end of the motor cover, a hopper is arranged above the limiting turntable cover, a left outlet and a right outlet are arranged at the bottom of the limiting turntable cover, the diameter of the left outlet is smaller than that of the right outlet, a feeding thin pipe is arranged at the left outlet, and a feeding thick pipe is arranged at the right outlet.

As a further scheme of the invention, the tooth openings of the screening fluted disc are circumferentially distributed by a large tooth opening and a small tooth opening, the diameters of the small tooth opening, the left outlet and the feeding thin tube are the same as the diameter of the material bearing circular hole at the notch of the left notching mechanism, and the diameters of the large tooth opening, the right outlet and the feeding thick tube are the same as the diameter of the material bearing circular hole at the notch of the right notching mechanism.

As a further scheme of the invention, the motor drives the transmission shaft to rotate so as to provide power for the left incision mechanism and the right incision mechanism to rotate.

As a further aspect of the present invention, the limiting rotation wheel limits the left cutting arm, the right cutting arm and the middle cutting arm, so that the left cutting arm and the right cutting arm rotate left and right on the support pillar, and the left cutting arm and the right cutting arm slide on the sliding rod to compress the springs, so that the middle cutting arm rotates up and down on the hinge, and the middle cutting arm slides on the first sliding rod to compress the first spring.

As a further aspect of the present invention, the left notch is provided on a movement locus of the cutter disc of the left cutting arm, the right notch is provided on a movement locus of the cutter disc of the right cutting arm, and the rear notch is provided on a movement locus of the cutter disc of the middle cutting arm.

As a further scheme of the invention, the outlet of the feeding thin tube is arranged at the front wall of the left cutting mechanism rotating wheel, and the outlet of the feeding thick tube is arranged at the front wall of the right cutting mechanism rotating wheel.

Compared with the prior art, the invention has the beneficial effects that:

the invention screens nuts to be cut in size through a feeding device, the big nuts are matched with a right notching mechanism with a large aperture, the small nuts are matched with a left notching mechanism with a small aperture, the nuts with different sizes are accurately cut, so that each nut can be well notched, the problem of later eating inconvenience caused by the fact that the notch is too deep or too shallow and no notch processing is carried out due to the fact that the nuts are too small is solved, the nuts are sieved by a sieving fluted disc rotating wheel to rotate clockwise, pass through a left outlet and a right outlet, and fall off when the nuts on a gear are matched with the corresponding outlets, and are conveyed to the matched notching mechanisms through a feeding thin tube and a feeding thick tube, the left notching mechanism and the right notching mechanism carry out one-step forming III-shaped notch on the matched nuts, and the difficulty generated when the nuts are eaten after the nuts are shelled in the later stage of single-notch opening is solved, the open-ended work efficiency has been improved greatly, and the qualification rate of product is also by a wide margin improvement moreover, owing to do not need the manual work to fix a position at last, just also can not cause the potential safety hazard, and the security performance also improves greatly, simple structure, and is efficient, is fit for promoting by a wide margin.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of the overall appearance structure of a step-type loading III-shaped cut round nut efficient screening and opening integrated machine according to the invention;

FIG. 2 is an enlarged schematic structural view of a step-feed Chuan-shaped cut mechanism of a round nut efficient screening and opening all-in-one machine for efficiently screening and opening nuts according to the invention;

FIG. 3 is a schematic cross-sectional structure view of a cutting arm of a step-feed Chuan-shaped cut circular nut efficient screening and opening all-in-one machine according to the invention;

FIG. 4 is a perspective structure diagram of a feeding device of a step-feeding III-shaped cut round nut high-efficiency screening and opening integrated machine according to the invention;

FIG. 5 is an enlarged schematic view of an integrated step-feed Chuan-shaped cut round nut high-efficiency screening opening limiting turntable cover according to the invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a work table; 2. a drive shaft base; 3. a drive shaft; 4. a rectangular opening; 5. blanking an inclined plane; 6. a left notching mechanism; 7. a right notching mechanism; 8. a U-shaped limiting device; 9. a front vertical bar; 10. a rear vertical rod; 11. a cross bar; 12. a limiting rotating wheel; 13. a rotating wheel; 14. a notch; 15. a notching mechanism; 16. a material bearing circular hole; 17. a left cutting arm; 18. a right cutting arm; 19. a middle cutting arm; 20. a support pillar; 21. a slide bar 22, a spring; 23. a hinge; 24. a first slide bar; 25. a first spring; 26. a storage battery; 27. a motor; 28. a cutter disc; 29. a left incision; 30. a right incision; 31. back incision; 32. a motor; 33. a feeding device; 34. a motor cover; 35. a second motor; 36. a material screening gear turntable; 37. a limiting turntable cover; 38. a hopper; 39. a left outlet; 40. a right outlet; 41. feeding thin tubes; 42. feeding a thick pipe; 43. a large tooth mouth; 44. a small tooth mouth.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-5, according to an embodiment of the present invention, a step-by-step feeding chuan-shaped cut round nut high-efficiency screening and opening all-in-one machine is provided, which includes a workbench 1, three transmission shaft bases 2 are arranged on the upper matrix of the rear end of the workbench 1, transmission shafts 3 are inserted into the transmission shaft bases 2, a rectangular opening 4 is formed on the top surface of the workbench 1 between the two transmission shaft bases 2, a blanking inclined plane 5 is arranged below the rectangular opening 4 at the left end of the workbench 1, a left cutting mechanism 6 and a right cutting mechanism 7 are respectively arranged at the two rectangular openings 4, a U-shaped limiting device 8 is arranged above the two transmission shaft bases 2, the U-shaped limiting device 8 includes a front vertical rod 9 and a rear vertical rod 10, a cross rod 11 is arranged between the front vertical rod 9 and the rear vertical rod 10, and a limiting rotating wheel 12 is arranged at the centers of the front vertical rod 9, the rear vertical rod 10 and the, the left cutting mechanism 6 and the right cutting mechanism 7 are arranged on the transmission shaft 3, the left cutting mechanism 6 comprises a rotating wheel 13, three notches 14 are uniformly arranged on the outer ring of the rotating wheel 13, a cutting mechanism 15 and a material bearing circular hole 16 are arranged at the notch 14, the cutting mechanism 15 comprises a left cutting arm 17, a right cutting arm 18 and a middle cutting arm 19, the tail ends of the left cutting arm 17 and the right cutting arm 18 are sleeved on a support column 20 at the tail end of the notch 14, a sliding rod 21 is arranged between the left cutting arm 17 and the right cutting arm 18, a spring 22 is sleeved on the sliding rod 21, the tail end of the middle cutting arm 19 is arranged at the tail end of the notch 14 through a hinge 23, the middle cutting arm 19 is connected with the notch 14 through a first sliding rod 24, a first spring 25 is arranged on the first sliding rod 24, a storage battery 26 and a motor 27 are arranged inside the left cutting arm 17, the right cutting arm 18 and the middle cutting arm 19, the output end of the motor 27 is provided with a cutting cutter disc 28, a left notch 29, a right notch 30 and a rear notch 31 are arranged around the material bearing circular hole 16, the right end of the transmission shaft 3 is provided with a motor 32, the left notch mechanism 6 and the right notch mechanism 7 have the same structure, and the difference lies in that the material bearing circular holes 16 at the notches 14 of the left notch mechanism 6 and the right notch mechanism 7 are different in size, the upper part of the front end of the workbench 1 is provided with a feeding device 33, the feeding device 33 comprises a motor cover 34, a second motor 35 is arranged inside the motor cover 34, the output end of the second motor 35 is provided with a material sieving gear turntable 36, the rear end of the motor cover 34 is provided with a limiting turntable cover 37, a hopper 38 is arranged above the limiting turntable cover 37, the bottom of the limiting turntable cover 37 is provided with a left outlet 39 and a right outlet 40, and the diameter of the left outlet 39 is smaller than, the left outlet 39 is provided with a feeding thin tube 41, the right outlet 40 is provided with a feeding thick tube 42, the tooth mouth of the screening fluted disc 36 is circumferentially distributed by a large tooth mouth 43 and a small tooth mouth 44, the diameters of the small tooth mouth 44, the left outlet 39 and the feeding thin tube 41 are the same as the diameter of the material bearing round hole 16 at the notch 14 of the left incision mechanism 6, the diameters of the large tooth mouth 43, the right outlet 40 and the feeding thick tube 42 are the same as the diameter of the material bearing round hole 16 at the notch 14 of the right incision mechanism 7, the motor 32 drives the transmission shaft 3 to rotate to provide power for the left incision mechanism 6 and the right incision mechanism 7 to rotate, the limit runner 12 limits the left cutting arm 17, the right cutting arm 18 and the middle cutting arm 19 so that the left cutting arm 17 and the right cutting arm 18 can rotate left and right on the support column 20, and the left cutting arm 17 and the right cutting arm 18 can slide the compression spring 22 on the slide rod 21 so that the middle cutting arm 19 can rotate up and down on the hinge 23, and well cutting arm 19 slides on first slide bar 24 and compresses first spring 25, left incision 29 sets up on the motion trail of the cutter disc 28 of left cutting arm 17, right incision 30 sets up on the motion trail of the cutter disc 28 of right cutting arm 18, back incision 31 sets up on the motion trail of the cutter disc 28 of well cutting arm 19, the export of material loading tubule 41 sets up the antetheca department at left cutting mechanism 6 runner 13, the export of material loading tubule 42 sets up the antetheca department at right cutting mechanism 7 runner 13.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

With continued reference to fig. 1-3, the transmission shaft 3 is driven by the motor 32, so that the left cutting mechanism 6 and the right cutting mechanism 7 rotate on the transmission shaft 3 counterclockwise following the movement direction of the output end of the motor 32, when the circular hole 16 for material loading at the notch 14 of the rotating wheel 13 rotates to the thin feeding tube 41 and the thick feeding tube 42, the screened nuts enter the circular hole 16 for material loading, the rotating wheel 13 rotates continuously, when the rotating wheel 13 rotates to the U-shaped limiting device 8, the limiting rotating wheel 12 limits the left cutting arm 17, the right cutting arm 18 and the middle cutting arm 19, so that the left cutting arm 17 and the right cutting arm 18 rotate left and right on the supporting column 20 to cut the nuts, and the left cutting arm 17 and the right cutting arm 18 slide on the sliding rod 21 to compress the spring 22, and the middle cutting arm 19 rotates up and down on the hinge 23 to cut the nuts, and the middle cutting arm 19 slides on the first sliding rod 24 to compress the first spring 25, when 15 rotations of notching mechanism break away from U type stop device 8 time left side cutting arm 17 and right cutting arm 18 resume original state, when the material round hole 16 that holds of runner 13 breach 14 department rotates the bottom, nut after the cutting falls down from unloading inclined plane 5 landing, once only carry out the river word incision to the nut, carry out reciprocating motion with this, cut the nut, the difficulty that produces when having solved nut single incision later stage and opening the shell edible fruit grain, open-ended work efficiency is greatly improved, and the qualification rate of product is improvement also by a wide margin, at last because do not need the manual work to fix a position, just can not cause the potential safety hazard yet, the security performance also improves greatly, moreover, the steam generator is simple in structure, high efficiency, and is suitable for promoting by a wide margin.

Continuing to refer to fig. 4-5, the nuts to be opened are poured into the hopper 38, the screening gear turntable 36 is driven by the second motor 35, the tooth openings of the screening gear turntable 36 are set to be large tooth openings 43 and small tooth openings 44, the nuts to be cut are screened in size by the rotation of the screening gear turntable 36, the screening gear turntable 36 rotates clockwise through the left outlet 39 and the right outlet 40 which pass through the left outlet 39 and the right outlet 40 respectively due to the fact that the tooth diameter of the left outlet 39 is smaller than that of the right outlet 40, the nuts on the gear fall when being matched with the corresponding outlet, then are conveyed to the matched cutting mechanism through the feeding thin tube 41 and the feeding thick tube 42, waiting for entering the material bearing circular hole 16 to cut, the large nuts are matched with the large-diameter right cutting mechanism 7, the small nuts are matched with the small-diameter left cutting mechanism 6, nuts of different sizes are accurately cut, make every nut can be fine carry out the incision, prevent that the incision is too dark or too shallow, again perhaps because the nut undersize does not carry out the incision processing, the inconvenient problem of later stage edible that leads to.

According to the invention, nuts to be cut are screened in size through the feeding device 33, the big nuts are matched with the right notching mechanism 7 with a large aperture, the small nuts are matched with the left notching mechanism 6 with a small aperture, nuts with different sizes are accurately cut, so that each nut can be notched well, the problem of later eating inconvenience caused by that the notch is too deep or too shallow and no notch processing is carried out because the nuts are too small is solved, then the screening fluted disc rotating wheel 36 rotates clockwise, the nuts firstly pass through the left outlet 39 and then pass through the right outlet 40, as the diameter of the left outlet 39 is smaller than that of the right outlet 40, the nuts on the gear fall down when being matched with the corresponding outlet, then the nuts are conveyed to the matched notching mechanism through the feeding thin tube 41 and the feeding thick tube 42, and the left notching mechanism 6 and the right notching mechanism 7 perform one-step forming III-shaped notch on the matched nuts, the problem of the single incision later stage of the nut produce when opening the shell edible fruit grain the difficulty is solved, open-ended work efficiency has been improved greatly, the qualification rate of product improvement also by a wide margin moreover, owing to do not need the manual work to fix a position at last, just can not cause the potential safety hazard yet, the security performance also improves greatly, simple structure, and is efficient, is fit for promoting by a wide margin.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (8)

1. The utility model provides a high-efficient screening opening all-in-one of notched circular nut of marching type material loading chuan, includes workstation (1), its characterized in that, workstation (1) rear end upper matrix is provided with three transmission shaft base (2), transmission shaft base (2) inside grafting has transmission shaft (3), two rectangle opening (4) have been seted up to workstation (1) top surface between transmission shaft base (2), workstation (1) left end rectangle opening (4) below is provided with unloading inclined plane (5), two rectangle opening (4) punishment do not is provided with left incision mechanism (6) and right incision mechanism (7), two be provided with U type stop device (8) above transmission shaft base (2), U type stop device (8) include preceding montant (9) and back montant (10), be provided with horizontal pole (11) between preceding montant (9) and the back montant (10), the front and rear rods (9), the rear vertical rod (10) and the transverse rod (11) are respectively provided with a limiting rotating wheel (12) at the center, a left notch mechanism (6) and a right notch mechanism (7) are arranged on the transmission shaft (3), the left notch mechanism (6) comprises a rotating wheel (13), three notches (14) are uniformly arranged on the outer ring of the rotating wheel (13), the notches (14) are provided with a notch mechanism (15) and a material bearing circular hole (16), the notch mechanism (15) comprises a left cutting arm (17), a right cutting arm (18) and a middle cutting arm (19), the tail ends of the left cutting arm (17) and the right cutting arm (18) are sleeved on a supporting column (20) at the tail end of the notch (14), a sliding rod (21) is arranged between the left cutting arm (17) and the right cutting arm (18), a spring (22) is sleeved on the sliding rod (21), and the tail end of the middle cutting arm (19) is arranged at the tail end of the notch (14) through a hinge (, well cutting arm (19) and breach (14) between be connected through first slide bar (24), be provided with first spring (25) on first slide bar (24), left side cutting arm (17), right side cutting arm (18), well cutting arm (19) are inside to be provided with battery (26) and motor (27), motor (27) output is provided with cutting cutter dish (28), hold material round hole (16) and be provided with left incision (29), right incision (30), back incision (31) all around, transmission shaft (3) right-hand member is provided with motor (32).

2. The all-in-one machine for efficiently screening and opening circular nuts with step-by-step feeding III-shaped cuts as claimed in claim 1, wherein the left cutting mechanism (6) and the right cutting mechanism (7) are identical in structure, and are different in size of circular material-bearing holes (16) at the notches (14) of the left cutting mechanism (6) and the right cutting mechanism (7).

3. The machine of claim 1, wherein the machine comprises a stepping feeding and III-shaped cut round nut high-efficiency screening and opening machine, it is characterized in that a feeding device (33) is arranged at the upper part of the front end of the workbench (1), the feeding device (33) comprises a motor cover (34), a second motor (35) is arranged in the motor cover (34), a material screening gear turntable (36) is arranged at the output end of the second motor (35), a limiting turntable cover (37) is arranged at the rear end of the motor cover (34), a hopper (38) is arranged above the limiting turntable cover (37), a left outlet (39) and a right outlet (40) are arranged at the bottom of the limiting turntable cover (37), and the diameter of the left outlet (39) is smaller than that of the right outlet (40), a feeding thin tube (41) is arranged at the left outlet (39), and a feeding thick tube (42) is arranged at the right outlet (40).

4. The stepping feeding III-shaped cut circular nut efficient screening and opening all-in-one machine as claimed in claim 2, wherein the tooth openings of the screening fluted disc (36) are circumferentially distributed by a large tooth opening (43) and a small tooth opening (44), the diameters of the small tooth opening (44), the left outlet (39) and the feeding thin tube (41) are the same as the diameter of the feeding circular hole (16) at the notch (14) of the left cutting mechanism (6), and the diameters of the large tooth opening (43), the right outlet (40) and the feeding thick tube (42) are the same as the diameter of the feeding circular hole (16) at the notch (14) of the right cutting mechanism (7).

5. The stepping feeding III-shaped cut circular nut efficient screening and opening all-in-one machine as claimed in claim 1, wherein the motor (32) drives the transmission shaft (3) to rotate so as to provide power for the left cutting mechanism (6) and the right cutting mechanism (7) to rotate.

6. The all-in-one machine for efficiently screening and opening circular nuts with step-by-step feeding and III-shaped cuts is characterized in that the limiting wheels (12) limit the left cutting arm (17), the right cutting arm (18) and the middle cutting arm (19), so that the left cutting arm (17) and the right cutting arm (18) rotate left and right on the supporting column (20), and the left cutting arm (17) and the right cutting arm (18) slide and compress springs (22) on the sliding rods (21), so that the middle cutting arm (19) rotates up and down on the hinge (23), and the middle cutting arm (19) slides and compresses the first spring (25) on the first sliding rod (24).

7. The all-in-one machine for efficiently screening and opening circular nuts with step-by-step feeding III-shaped notches is characterized in that the left notch (29) is arranged on the motion track of a cutter disc (28) of the left cutting arm (17), the right notch (30) is arranged on the motion track of the cutter disc (28) of the right cutting arm (18), and the rear notch (31) is arranged on the motion track of the cutter disc (28) of the middle cutting arm (19).

8. The all-in-one machine for efficiently screening and opening circular nuts with step-by-step feeding III-shaped cuts is characterized in that the outlet of the feeding thin tube (41) is arranged at the front wall of the rotating wheel (13) of the left cutting mechanism (6), and the outlet of the feeding thick tube (42) is arranged at the front wall of the rotating wheel (13) of the right cutting mechanism (7).

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