An automated macadamia nut shelling, kernel extraction and screening machine

Abstract

The utility model discloses an automated macadamia nut shelling, kernel extraction and screening integrated machine, which relates to the technical field of nut processing, including a frame and a screening mechanism, and also a shelling mechanism; the shelling mechanism includes a hollow fixed seat, a shelling tube and a driving device, wherein: the hollow fixed seat is fastened to the frame in correspondence, an opening for macadamia nuts to enter is provided on the top, one end is connected to the shelling tube, and the other end is movably plugged with a push rod coaxial with the shelling tube; a driving device for driving the push rod to reciprocate is installed at the position of the frame corresponding to the hollow fixed seat; a plurality of shelling sharp cones are arranged at intervals along the inner edge of the end port of the shelling tube away from the hollow fixed seat, and the tip of the shelling sharp cone faces the hollow fixed seat. The utility model has a simple structure, can be fully automatically operated continuously, has high operating efficiency, and the macadamia nut shell is pushed out of the shelling tube by the push rod only after it is broken, which can prevent the macadamia nut from accidentally flying out when the macadamia nut shell is broken.

Description

Technical Field

[0001] The utility model relates to the technical field of nut processing, in particular to an automated macadamia nut shelling, kernel extraction and screening integrated machine. Background Art

[0002] Macadamia nuts, also known as macadamia nuts, are a much-loved variety of nuts. Their uniqueness lies in the fact that after removing the outer green skin, what appears before our eyes is a spherical hard shell. In order to meet the needs of consumers for quick consumption, slits are usually sawed on the shell so that when eating, special tools can be used to easily break the shell from the slit and take out the kernel inside.

[0003] However, in the field of industrial production, it is usually necessary to directly crack the shell and retain the kernel; however, the traditional manual shelling method is not only inefficient, but also labor-intensive, and it is difficult to meet the needs of large-scale production; in order to solve this problem, a variety of automatic shelling and kernel-collecting equipment has emerged on the market; these devices use mechanization and automation to achieve rapid shell cracking and kernel separation of macadamia nuts, greatly improving production efficiency and reducing labor costs; however, although these devices have solved the problem of low efficiency of manual shelling to a certain extent, many problems are still exposed in actual use;

[0004] For example, a Chinese patent (publication number: CN217523872U) discloses a multi-station fully automatic nut kernel removal and screening machine; the patent includes a frame, a lower processing and sorting mechanism and a multi-tool push shell breaking and kernel removal mechanism; the multi-tool push shell breaking and kernel removal mechanism includes a fixed knife and a movable knife symmetrically arranged on the front and rear sides of the positioning processing silo with blades facing each other, and the movable knife moves toward the fixed knife to squeeze and crack the nuts in the semi-tubular positioning silo; but when cracking the shells of macadamia nuts, it was found that the multi-tool push shell breaking and kernel removal mechanism of the patent lacked a limit on the macadamia nuts, and the macadamia nuts often flew out accidentally during the shelling operation. This defect is a problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0005] In order to overcome the deficiencies in the background technology, the utility model discloses an automated macadamia nut shelling, kernel removal and screening all-in-one machine.

[0006] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0007] An automated integrated machine for shelling, kernel removal and screening of macadamia nuts, comprising a frame and a screening mechanism, and also a shelling mechanism; the shelling mechanism comprises a hollow fixed seat, a shelling tube and a driving device, wherein: the hollow fixed seat is correspondingly and tightly connected to the frame, an opening is provided on the top for allowing macadamia nuts to enter, one end is connected to the shelling tube, and the other end is movably connected to a push rod coaxial with the shelling tube; a driving device for driving the push rod to and fro is installed at a position of the frame corresponding to the hollow fixed seat; a plurality of shelling cones are annularly spaced in an inner port of one end of the shelling tube away from the hollow fixed seat, and the tips of the shelling cones face the hollow fixed seat; a screening mechanism for separating the shells and kernels of macadamia nuts is provided below the shelling mechanism of the frame.

[0008] Preferably, the shell breaking pipe is provided with an open groove at a position corresponding to between two adjacent shell breaking cones.

[0009] Preferably, the shell breaking tube body is provided with at least three strip grooves spaced apart along the annular direction, a saw blade is slidably fitted in the strip groove, one end of the saw blade corresponding to the hollow fixed seat is hinged to the shell breaking tube body, and the other end is provided with a limiting boss; the shell breaking tube body is sleeved with an annular spring for making the saw blade gather toward the axis of the shell breaking tube, and a limiting groove is provided at the position of the saw blade corresponding to the annular spring.

[0010] Preferably, the shell breaking tube body is provided with a plurality of annular springs at intervals.

[0011] Preferably, the shell breaking tube body is arranged horizontally, and a chip removal groove is provided at the bottom of the tube body.

[0012] Preferably, the shell breaking tube is detachably connected to the hollow fixing seat.

[0013] Preferably, a funnel is provided above the hollow fixing seat, and the funnel is connected to the opening on the top of the hollow fixing seat via a connecting pipe, and is fastened to the frame via a connecting piece.

[0014] Preferably, a dividing funnel is provided on the top of the frame, the discharge port of the dividing funnel corresponds to the feed port of the funnel, and a dividing roller is rotatably connected inside the discharge port of the dividing funnel, and the roller body of the dividing roller is arranged with a plurality of recesses capable of accommodating nuts in an array; a motor for driving the dividing roller to rotate is installed on the frame.

[0015] Preferably, a plurality of shell breaking mechanisms are installed in the frame.

[0016] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0017] (1) The utility model has a simple structure and can automatically complete the continuous operations of shelling, kernel removal and screening, with high operating efficiency and low production cost.

[0018] (2) When in use, the macadamia nut enters the hollow fixing seat from the opening at the top of the hollow fixing seat, and the push rod is driven by the driving device to push the macadamia nut into the shell breaking tube and is pushed out from the other end of the shell breaking tube. When the macadamia nut is pushed to the shell breaking cone, the shell breaking cone can generate a squeezing force on the macadamia nut, causing the shell of the macadamia nut to crack. After the shell of the macadamia nut is cracked, it is pushed out of the shell breaking tube by the push rod, which can prevent the macadamia nut from accidentally flying out when the shell of the macadamia nut is broken.

[0019] (3) The utility model further provides an opening groove at a position between two adjacent shell-breaking cones of the shell-breaking tube, that is, the crushed macadamia nut shell can be released from the opening groove of the shell-breaking tube, so that the crushed macadamia nut shell can be quickly separated from the kernel, thereby reducing the probability of the kernel being crushed.

[0020] (4) The utility model further provides at least three saw blades spaced circumferentially along the shell breaking tube. When the push rod pushes the macadamia nuts to move along the shell breaking tube, the saw blades can saw and cut the macadamia nut shells to improve the shell breaking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the shell breaking mechanism;

[0023] Figure 3 It is a schematic diagram of the local structure of the shell breaking tube;

[0024] Figure 4 It is a schematic diagram of the connection structure between the saw blade and the shell breaking tube;

[0025] Figure 5 is a schematic diagram of the structure of a saw blade;

[0026] Figure 6 It is a top view of the utility model.

[0027] In the figure: 1. frame; 2. shell breaking mechanism; 2-1. hollow fixed seat; 2-2. shell breaking pipe; 2-3. driving device; 2-4. shell breaking cone; 2-5. saw blade; 2-6. annular spring; 2-7. funnel; 2-8. chip discharge groove; 3. material dividing funnel; 4. material dividing roller; 5. vibrating screen. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present utility model, it should be noted that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present utility model.

[0030] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Embodiment 1

[0031] Combined with Figures 1 to 3 As shown, an automated macadamia nut shelling, kernel removal and screening integrated machine includes a frame 1, a shelling mechanism 2 and a screening mechanism; wherein: a hollow fixed seat 2-1 is correspondingly and firmly connected to the frame 1, an opening for macadamia nuts to enter is provided on the top, a shelling tube 2-2 is connected to one end, and a push rod coaxial with the shelling tube 2-2 is movably connected to the other end; a driving device 2-3 for driving the push rod to reciprocate is installed at the position of the frame 1 corresponding to the hollow fixed seat 2-1. That is, when in use, the macadamia nuts are put into the opening at the top of the hollow fixed seat 2-1, enter into the hollow fixed seat 2-1, and then the push rod is driven by the driving device 2-3 to push the macadamia nuts into the shelling tube 2-2, and pushed out from the other end of the shelling tube 2-2; the driving device 2-3 can be a telescopic cylinder.

[0032] As attached Figure 3As shown, a plurality of shell-breaking cones 2-4 are arranged in annular intervals in the inner side of the end port of the shell-breaking tube 2-2 away from the hollow fixed seat 2-1, and the tip of the shell-breaking cone 2-4 faces the hollow fixed seat 2-1, that is, when the macadamia nut is pushed to the shell-breaking cone 2-4, the shell-breaking cone 2-4 can generate a squeezing force on the macadamia nut, so that the shell of the macadamia nut is broken, and the macadamia nut shell is pushed out of the shell-breaking tube 2-2 by the push rod after the shell is broken. Correspondingly, the spacing between the shell-breaking cones 2-4 should be able to match the macadamia nut that has not been broken, and should be as large as possible from the macadamia nut kernel, so that the macadamia nut can be pushed out by the push rod only when the shell is broken, which can prevent the macadamia nut from accidentally flying out when the shell of the macadamia nut is broken.

[0033] It should be noted that the number of shelling cones 2-4 can be selected to be three or five, so that the macadamia nut is automatically centered when the shell is broken, thereby breaking the shell from multiple angles of the macadamia nut, reducing damage to the kernel and effectively ensuring the shelling effect.

[0034] In addition, a screening mechanism for separating the shell and kernel of macadamia nuts is provided below the frame 1 corresponding to the shell breaking mechanism 2. The screening mechanism includes a vibrating screen 5 for separating the shell and kernel of macadamia nuts, that is, the shell of macadamia nuts can fall into the vibrating screen 5 after being squeezed and broken, and the kernel is larger than the shell of macadamia nuts, and will be screened out during vibration, so the shell and kernel of macadamia nuts can be separated by the vibrating screen 5; since the vibrating screen 5 capable of separating the shell and kernel of macadamia nuts is an existing technology, its structure and working principle will not be described in detail in this embodiment.

[0035] When in use, macadamia nuts are put into the hollow fixed seat 2-1 from the opening at the top of the hollow fixed seat 2-1, and the driving device 2-3 is started. The driving device 2-3 drives the push rod to push the macadamia nuts into the shell breaking tube 2-2 and push them out from the other end of the shell breaking tube 2-2, thus completing the shell breaking operation of the macadamia nuts; after the driving device 2-3 drives the push rod to retreat and reset, the next macadamia nut can be put in to realize continuous shell breaking operation. Embodiment 2

[0036] When crushing the macadamia nut shells, the crushed macadamia nut shells are covered by the inner wall of the shell-breaking tube 2-2, so the crushed macadamia nut shells cannot be quickly separated from the kernels, resulting in the kernels being crushed. In order to solve the above technical defects, this embodiment is further improved;

[0037] Combined with Figure 3, an automated macadamia nut shelling, kernel removal and screening integrated machine, which is different from the first embodiment in that, on the basis of the first embodiment, an opening groove is provided at a position between two adjacent shell breaking cones 2-4 in a shell breaking tube 2-2, that is, the broken macadamia nut shells can be released from the opening groove of the shell breaking tube 2-2, and the kernels are pushed out from the other end of the shell breaking tube 2-2, so that the broken macadamia nut shells can be quickly separated from the kernels, reducing the probability of the kernels being crushed. Embodiment 3

[0038] Combined with Figure 4 and 5 , an automated macadamia nut shelling, kernel removal and screening machine, based on embodiment 1 or 2, a shell breaking tube 2-2 body is provided with at least three strip grooves spaced along the annular direction, a saw blade 2-5 is slidably fitted in the strip groove, one end of the saw blade 2-5 corresponding to the hollow fixed seat 2-1 is hinged to the shell breaking tube 2-2 body, a hinged seat can be provided on the outer wall of the shell breaking tube 2-2 body, connected to the hinged seat through a pin, a limiting boss is provided at the other end of the saw blade 2-5, when the saw blade 2-5 rotates to a certain depth, the limiting boss is stuck by the shell breaking tube 2-2 body, and cannot enter the shell breaking tube 2-2 anymore, the limiting boss can limit the depth of the saw blade 2-5 entering the shell breaking tube 2-2, avoiding contact between the saw blade 2-5 and the push rod, causing damage to the saw blade 2-5 or the push rod. The shell breaking tube 2-2 is sleeved with an annular spring 2-6 for bringing the saw blade 2-5 toward the axis of the shell breaking tube 2-2, and the saw blade 2-5 is provided with a limiting groove at the position corresponding to the annular spring 2-6, which is concave downward to prevent the annular spring 2-6 from being displaced along the axial direction of the shell breaking tube 2-2.

[0039] When the push rod pushes the macadamia nuts to move along the shell breaking tube 2-2, the saw blade 2-5 can saw and cut the macadamia nut shell to improve the shell breaking effect; because the shell breaking tube 2-2 tube body is provided with an annular spring 2-6, the saw blade 2-5 can automatically adapt to the size of the macadamia nut, thereby ensuring the sawing and cutting effect; as needed, the shell breaking tube 2-2 tube body is provided with multiple annular springs 2-6 at intervals, which can effectively ensure the sawing force applied by the saw blade 2-5 to the macadamia nut shell; the shell breaking tube 2-2 tube body is arranged horizontally, and a chip groove 2-8 is arranged at the bottom of the shell breaking tube 2-2 tube body, that is, the debris generated when the saw blade 2-5 saws the macadamia nut shell can be discharged from the chip groove 2-8, and a collection box can be installed on the frame 1 below the shell breaking tube 2-2 to collect the debris discharged from the chip groove 2-8; the shell breaking tube 2-2 is detachably connected to the hollow fixed seat 2-1, so that the operator can replace the worn saw blade 2-5.

[0040] It should be noted that at least three saw blades 2-5 are arranged at intervals along the circumferential direction on the shell breaking tube 2-2, so that the macadamia nuts in the shell breaking tube 2-2 can be automatically centered.

[0041] In addition, multiple shell breaking cones 2-4 can respectively correspond to the positions of multiple saw blades 2-5, so that the shell breaking cones 2-4 can crush the macadamia nut shell along the sawed slits of the macadamia nut shell; or multiple shell breaking cones 2-4 are respectively arranged in a staggered manner with multiple saw blades 2-5, so that the macadamia nut shell can be broken from the sawed slits. The above two structures can effectively improve the shell breaking effect. Embodiment 4

[0042] Combined with Figure 1 and 6 , an automated macadamia nut shelling, kernel removal and screening machine, based on any one of embodiments 1 to 3, a funnel 2-7 is provided above the hollow fixed seat 2-1, which is connected to the opening on the top of the hollow fixed seat 2-1 through a connecting pipe, and the funnel 2-7 is fastened to the frame 1 through a connecting piece, that is, macadamia nuts can be put into the hollow fixed seat 2-1 through the funnel 2-7.

[0043] It should be noted that a connecting tube with a suitable inner diameter can be selected according to the particle size of the macadamia nuts, so that multiple macadamia nuts can be stored in order in the connecting tube, and the next one can quickly fall down to replenish after the previous one is broken, thereby effectively improving work efficiency.

[0044] A dividing funnel 3 is provided on the top of the frame 1, and the discharge port of the dividing funnel 3 corresponds to the feed port of the funnel 2-7, and a dividing roller 4 is rotatably connected in the discharge port of the dividing funnel 3, and a plurality of recesses capable of accommodating nuts are arranged in an array on the roller body of the dividing roller 4; a motor for driving the dividing roller 4 to rotate is installed on the frame 1, that is, an operator can put macadamia nuts into the dividing funnel 3 in batches, and the motor drives the dividing roller 4 to rotate, and during the rotation of the dividing roller 4, the macadamia nuts that fall from the dividing funnel 3 into the recess of the dividing roller 4 can be taken out and fall from the discharge port of the dividing funnel 3 into the funnel 2-7;

[0045] In order to further improve the operating efficiency, a plurality of shell breaking mechanisms 2 are installed in the frame 1, as shown in the attached Figure 1 As shown, the material distribution funnel 3 is inverted cone-shaped, symmetrically provided with two material discharge ports, and the roller body of the material distribution roller 4 is provided with multiple notches at intervals along the length in multiple directions. Correspondingly, multiple shell breaking mechanisms 2 are symmetrically arranged in the frame 1, and the motor drives the material distribution roller 4 to rotate and simultaneously feeds macadamia nuts to multiple shell breaking mechanisms 2 one by one, which greatly improves the working efficiency. A partition plate can be set between the symmetrical shell breaking mechanisms 2, and the two ends of the partition plate are fixed by the frame 1. The shell breaking tube 2-2 maintains a certain distance from the partition plate, so as to prevent the pushed out kernels from affecting the work of the shell breaking tube 2-2 opposite to it.

[0046] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. An automated macadamia nut shelling, kernel removal and screening machine, comprising a frame and a screening mechanism, characterized in that: It also comprises a shell breaking mechanism (2); the shell breaking mechanism (2) comprises a hollow fixed seat (2-1), a shell breaking tube (2-2) and a driving device (2-3), wherein: the hollow fixed seat (2-1) is fastened to the frame (1) in correspondence, an opening is provided on the top for allowing macadamia nuts to enter, one end is connected to the shell breaking tube (2-2), and the other end is movably connected to a push rod coaxial with the shell breaking tube (2-2); a driving device (2-3) for driving the push rod to reciprocate is installed at a position of the frame (1) corresponding to the hollow fixed seat (2-1); a plurality of shell breaking cones (2-4) are arranged at intervals along the annular direction in the inner portion of the shell breaking tube (2-2) at one end away from the hollow fixed seat (2-1), and the tips of the shell breaking cones (2-4) face the hollow fixed seat (2-1); and a screening mechanism for separating the shells and kernels of macadamia nuts is provided below the frame (1) corresponding to the shell breaking mechanism (2).

2. The automated macadamia nut shelling, kernel removal and screening machine as claimed in claim 1, characterized in that: The shell breaking pipe (2-2) is provided with an open groove at a position corresponding to between two adjacent shell breaking cones (2-4).

3. The automated macadamia nut shelling, kernel removal and screening machine as claimed in claim 1, characterized in that: The shell-breaking tube (2-2) is provided with at least three strip grooves at intervals along the annular direction, a saw blade (2-5) is slidably fitted in the strip groove, one end of the saw blade (2-5) corresponding to the hollow fixed seat (2-1) is hinged to the shell-breaking tube (2-2) body, and the other end is provided with a limiting boss; the shell-breaking tube (2-2) body is sleeved with an annular spring (2-6) for causing the saw blade (2-5) to converge toward the axis of the shell-breaking tube (2-2), and a limiting groove is provided at the position of the saw blade (2-5) corresponding to the annular spring (2-6).

4. The automated macadamia nut shelling, kernel removal and screening machine as claimed in claim 3, characterized in that: The shell breaking tube (2-2) is provided with a plurality of annular springs (2-6) at intervals on its body.

5. The automated macadamia nut shelling, kernel removal and screening machine as claimed in claim 3, characterized in that: The shell breaking tube (2-2) has a horizontally arranged tube body, and a chip removal groove (2-8) is provided at the bottom of the tube body.

6. The automated macadamia nut shelling, kernel removal and screening machine as claimed in claim 3, characterized in that: The shell breaking tube (2-2) is detachably connected to the hollow fixing seat (2-1).

7. The automated macadamia nut shelling, kernel removal and screening machine as claimed in claim 1, characterized in that: A funnel (2-7) is provided above the hollow fixing seat (2-1); the funnel (2-7) is correspondingly connected to an opening at the top of the hollow fixing seat (2-1) via a connecting pipe, and is correspondingly fastened to the frame (1) via a connecting piece.

8. The automated macadamia nut shelling, kernel removal and screening machine as claimed in claim 7, characterized in that: A material distribution funnel (3) is provided on the top of the frame (1); the material distribution funnel (3) has a material outlet corresponding to the material inlet of the funnel (2-7); a material distribution roller (4) is rotatably connected in the material outlet of the material distribution funnel (3); a plurality of recesses capable of accommodating nuts are arranged in an array on the rolling body of the material distribution roller (4); and a motor for driving the material distribution roller (4) to rotate is installed on the frame (1).

9. The automated macadamia nut shelling, kernel removal and screening machine as claimed in claim 7, characterized in that: A plurality of shell breaking mechanisms (2) are installed in the frame (1).

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