Full-automatic cashew nut shell opening machine

Abstract

The embodiment of the invention provides a full-automatic cashew nut shell opening machine which comprises a rack provided with a driving mechanism, a feeding device is arranged in the rack, a feeding baffle is arranged at one end of the feeding device, an upper shell opening mechanism is arranged at the other end of the feeding device, and a feeding device is arranged at the lower end of the feeding device. A limiting guide device is arranged between the feeding device and the upper shell opening mechanism, the feeding groove is formed in the upper end face of the feeding plate, a material pushing shifting plate is arranged on the periphery of the material pushing device, the material pushing device is arranged in the feeding device, and the material pushing shifting plate on the material pushing device is inserted into and penetrates through the feeding plate to extend into the feeding groove. The end of the feeding plate is connected with the lower shell opening mechanism, cashew nuts are adjusted to be in a transverse vertical state when falling into a feeding groove in the feeding plate and move towards the upper shell opening mechanism and the lower shell opening mechanism under the pushing of the pushing plate so that the cashew nuts can be kept in a relatively ideal to-be-processed state in the conveying process, and shell opening is completed through the upper shell opening mechanism and the lower shell opening mechanism. And the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The embodiments of the present invention relate to, but are not limited to, the field of cashew nut shelling equipment, and in particular to a fully automatic cashew nut shelling machine. Background Art

[0002] The shell of raw cashew nuts is hard and needs to be opened during processing to remove the cashew kernels from the shell. Currently, cashew shelling equipment usually places the cashew nuts in a specific conveying channel and straightens them into a vertical position. The shell is then broken open by a shelling knife to complete the shelling process.

[0003] In the prior art, when raw cashew nuts fall from the hopper into the conveying channel, the correct position of the cashew nuts must be ensured to ensure the shelling effect. However, when the cashew nuts fall from the hopper, the position of the cashew nuts in the specific conveying channel is random, and it cannot be guaranteed that they are in the optimal position for feeding. If the cashew nuts cannot maintain a horizontal upright state and are pushed toward the shelling knife, the shelling effect will be poor or the kernel will be directly damaged, resulting in an increase in the rate of bad nuts. Summary of the Invention

[0004] (1) Technical issues to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a fully automatic cashew nut shelling machine, which solves the technical problem that when cashew nuts fall from the hopper, the position of the cashew nuts entering the specific conveying channel is random, and it cannot be guaranteed that they are in the optimal position for feeding. When the cashew nuts cannot maintain a horizontal upright state, they are pushed toward the shelling knife, which will lead to poor shelling effect or direct damage to the kernels, resulting in an increased rate of bad nuts.

[0006] (2) Technical solution

[0007] The object of the present invention is to provide a fully automatic cashew nut shelling machine, which includes a frame provided with a driving mechanism, the lower part of the frame being provided with a first discharging hopper and a second discharging hopper, the upper part of the frame being provided with a feeding device, one end of the feeding device being provided with a feeding baffle, the other end of the feeding device being provided with an upper shelling mechanism, the lower end of the feeding device being provided with a feeding device, the inside of the feeding device being provided with a feeding plate and a pushing device being provided with a limiting guide device being provided between the feeding device and the upper shelling mechanism, the feeding plate being provided with a feeding groove, the feeding groove penetrating the feeding plate and being arranged from deep to shallow on the upper end surface of the feeding plate, the outer periphery of the pushing device being provided with a pushing paddle, the feeding plate being arranged between the pushing device and the upper part of the feeding device, the pushing device being arranged inside the feeding device and the pushing paddle on the pushing device being inserted into and passing through the feeding plate and extending into the feeding groove, the end of the feeding plate being connected to the lower shelling mechanism.

[0008] Preferably, the driving mechanism includes a driving motor and a transmission chain. The driving motor is arranged at the lower end of the frame and is connected to the transmission chain through the output end. The transmission chain is connected to the feeding device.

[0009] Preferably, the feeding device includes a feeding hopper, a feeding brush, a feeding main shaft, a feeding sub-shaft, a feeding chain and a feeding plate. The feeding brush is arranged on one side of the feeding hopper and is in contact with the feeding plate. The two ends of the feeding main shaft and the feeding sub-shaft are connected by a feeding chain. The feeding plate is laid between the feeding chains at both ends of the feeding main shaft and the feeding sub-shaft. The end face of the feeding plate is provided with a fruit feeding groove.

[0010] Preferably, the limiting guide device includes a mounting plate, a U-shaped plate and a movable plate, the U-shaped plate is arranged at the lower end of the mounting plate, the movable plate is arranged at the lower end of the U-shaped plate, and a limiting groove is provided on the lower end surface of the movable plate.

[0011] Preferably, the upper shell opening mechanism includes a support frame and an upper shell opening knife group arranged on the support frame, the upper shell opening knife group includes a lifting rod, a lifting spring, a lifting slide rail, a lifting slider, an upper knife plate and an upper shell opening knife; the lifting rod sleeve is provided with a lifting spring and fixed on the support frame, the lifting slider is fixed on the support frame and connected to the lifting rod with a slide rail, the lower end of the lifting rod is connected to the upper knife plate, and the upper shell opening knife is arranged on the upper knife plate.

[0012] Preferably, the lower end surface of the upper blade plate is provided with a feeding trough, and the end of the feeding trough is provided with an avoidance slot; a first V-shaped block, a first blade locking plate and a first blade locking block are installed on the upper blade plate, and the upper shell opening knife is inserted into and passes through the avoidance slot and is fixed by the first blade locking plate and the first blade locking block, the first V-shaped block is inserted from the lower end of the avoidance slot and connected to the first blade locking plate, and the first blade locking plate is fixed to the upper end of the upper blade plate.

[0013] Preferably, the lower shell opening mechanism includes a left knife holder, a right knife holder, a lower shell opening knife and a second V-shaped block, a contoured channel is formed between the left knife holder and the right knife holder, the lower shell opening knife is arranged in the contoured channel between the left knife holder and the right knife holder, and the second V-shaped block is inserted into the V-shaped notch formed by the end portions of the left knife holder and the right knife holder and abuts against the end portion of the lower shell opening knife; wherein, the lower shell opening knife and the second V-shaped block are higher than the bottom of the contoured channel.

[0014] Preferably, the feeding device includes a feeding main shaft, a feeding sub-shaft, a feeding chain and a pushing plate. There are two feeding chains, which are respectively mounted on the two ends of the feeding main shaft and the feeding sub-shaft. The two ends of the pushing plate are respectively connected to the feeding chains at the two ends of the feeding main shaft and the feeding sub-shaft.

[0015] Preferably, the pushing device also includes a pushing main shaft, a pushing secondary shaft, a pushing chain and a connecting cross plate. There are two pushing chains, which are respectively mounted on the two ends of the pushing main shaft and the pushing secondary shaft. The two ends of the connecting cross plate are respectively connected to the pushing chains at the two ends of the pushing main shaft and the pushing secondary shaft. The pushing plate is arranged on the upper end surface of the connecting cross plate.

[0016] On the other hand, the present application also discloses a shell opening method of a fully automatic shell opening machine, comprising the following steps:

[0017] Step 1: Start the machine. The driving mechanism drives the pushing device to rotate toward the upper and lower shell opening mechanisms through the transmission chain. Driven by the feeding chain, the feeding device rotates toward the feeding baffle. The feeding spindle of the feeding device drives the brush roller to rotate through the limiting chain.

[0018] Step 2: Pour cashews into the feed hopper of the feeding device. The cashews entering the feed hopper will randomly fall into the fruit feeding groove of the feeding plate and be transported toward the feeding baffle as the feeding spindle rotates. At this time, driven by the limiting chain, the brush roller rotates toward the feed hopper, blocking the cashews outside the fruit feeding groove in the feed hopper. The cashews that fall into the fruit feeding groove will flip with the feeding plate and fall into the feeding groove of the feeding plate;

[0019] Step 3: The fallen cashew nuts enter the feeding groove of the feeding plate and are corrected in the feeding groove so that the curved nuts are in a horizontally upright state;

[0020] Step 4: The upright nut will be pushed down by the push plate of the pushing device and move toward the upper and lower shell opening mechanisms. Then, the limiting groove of the movable plate in the feeding groove will cooperate with the nut to maintain the upright state and move forward in the direction of the upper and lower shell opening mechanisms.

[0021] Step 5: The cashews that reach the space between the upper and lower shelling mechanisms are pushed by the pusher plate, and the upper and lower shelling knives work together to cut through the upper and lower shells of the cashew nut shells;

[0022] Step 6: Since the upper and lower shelling mechanisms exert a certain pressure on the shell of the cashew nut, under the thrust of the push plate, the upper and lower scratched shells of the cashew nut will be broken apart under the cooperation of the first V-shaped block and the second V-shaped block, so that the pulp and the shell are separated. The pulp falls into the first discharge hopper and the shell falls into the second discharge hopper, and the shelling work is completed.

[0023] (3) Beneficial effects

[0024] Driven indirectly by the driving mechanism, the feeding device transports the cashew nuts to be shelled toward the feeding baffle, and the cashew nuts, with the assistance of the feeding baffle, fall into the feeding groove on the feeding plate and are adjusted to a horizontally upright state. The cashew nuts are pushed from the deep part of the feeding groove to the shallow part toward the upper and lower shelling mechanisms by the pushing plate of the pushing device. The cashew nuts in the shallow part of the feeding groove are pushed by the feeding device and cooperate with the limiting guide device to maintain a horizontally upright state and enter the upper and lower shelling mechanisms. The upper and lower shelling mechanisms complete the processes of shelling, shell breaking and pulp separation, so that the cashew nuts are kept in a horizontally upright state throughout the entire process from the transportation of the cashew nuts to the shelling process, so as to keep the cashew nuts in a relatively ideal state to be processed during the transportation process, thereby ensuring the shelling efficiency and reducing the probability of damaging the pulp, thereby improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation to the technical solution of the present invention.

[0026] Figure 1 This is a three-dimensional diagram of the overall structure of the fully automatic cashew shelling machine;

[0027] Figure 2 This is the left view of the overall structure of the fully automatic cashew shelling machine;

[0028] Figure 3 This is the right view of the overall structure of the fully automatic cashew shelling machine;

[0029] Figure 4 This is a half-section view of the overall structure of the fully automatic cashew shelling machine;

[0030] Figure 5 This is a three-dimensional diagram of the feeding device of the fully automatic cashew nut shelling machine;

[0031] Figure 6 This is a three-dimensional picture of the feed plate of the fully automatic cashew shelling machine;

[0032] Figure 7 This is a structural diagram of the fully automatic cashew nut shelling machine where the pushing device is installed inside the feeding device;

[0033] Figure 8 This is a three-dimensional diagram of the pushing device of the fully automatic cashew nut shelling machine;

[0034] Figure 9 This is a left view of the fully automatic cashew nut shelling machine, where the feed plate and the limit guide device are installed on one side of the upper and lower shelling mechanisms;

[0035] Figure 10 This is a structural diagram of the feed plate and the left and right tool holders of the fully automatic cashew nut shelling machine;

[0036] Figure 11 Figure 5 is a left view of the limiting guide device of the full-automatic cashew nut shelling machine;

[0037] Figure 12 Figure 6 is a perspective view of the floating plate of the full-automatic cashew nut shelling machine;

[0038] Figure 13 Figure 7 is a perspective view of the upper shelling mechanism of the full-automatic cashew nut shelling machine;

[0039] Figure 14 Figure 8 is a perspective view of the upper shelling knife set of the full-automatic cashew nut shelling machine;

[0040] Figure 15 Figure 9 is an exploded view of the lower shelling mechanism of the full-automatic cashew nut shelling machine;

[0041] Legend of reference signs:

[0042] 1. frame;

[0043] 2. driving mechanism; 20, driving motor; 21, transmission chain;

[0044] 3. feeding device; 30, feeding hopper; 31, feeding brush; 32, feeding main shaft; 33, feeding auxiliary shaft; 34, feeding chain; 35, feeding plate; 36, fruit conveying groove; 37, brush roller;

[0045] 4. upper shelling mechanism; 40, support frame; 41, lifting rod; 42, lifting spring; 43, lifting slide rail; 44, lifting slide block; 45, upper knife mounting plate; 46, upper shelling knife; 47, feeding groove; 48, first V-shaped block; 49, first knife locking plate; 491, first knife locking block; 492, connecting strip; 493, plum blossom nut; 494, avoidance gap;

[0046] 5. limiting guide device; 50, mounting plate; 51, U-shaped plate; 52, movable plate; 53, limiting hole; 54, limiting column; 55, lifting hole; 56, limiting groove;

[0047] 6. lower shelling mechanism; 60, left knife holder; 61, right knife holder; 62, lower shelling knife; 63, second V-shaped block; 64, profiled channel;

[0048] 7. feeding device; 70, feeding main shaft; 71, feeding auxiliary shaft; 72, feeding chain; 73, pushing plate;

[0049] 8. feeding plate; 80, feeding groove;

[0050] 9. pushing device; 90, pushing main shaft; 91, pushing auxiliary shaft; 92, pushing chain; 93, connecting cross plate; 94, pushing push plate; 95, auxiliary sprocket; 96, reverse chain;

[0051] 10. First discharge hopper; 11. Second discharge hopper; 12. Material stop frame; 13. Feed baffle; 14. Feed support plate; 15. Propelling chain; 16. Material limiting chain. DETAILED DESCRIPTION

[0052] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0053] The following is combined with Figures 1 to 15 , for further description, the present invention discloses a fully automatic cashew shelling machine, comprising a frame 1 provided with a driving mechanism 2, a first discharging hopper 10 and a second discharging hopper 11 are provided at the lower part of the frame 1, and the driving mechanism 2 is fixed to the lower end of the first discharging hopper 10 by bolts, a feeding device 3 is provided on the upper part of the frame 1, and one end of the feeding device 3 is provided with a feeding baffle 13 installed on the frame 1 through a baffle frame 12, and the feeding baffle 13 is connected to the baffle frame 12 by a hinge to open the cashew shell at the waist. The other end of the feeding device 3 is provided with an upper shelling mechanism 4, and the lower end of the upper shelling mechanism 4 is provided with a lower shelling mechanism 6 which is opposite to the cashew nut. Therefore, a material passage opened by the cashew nut is provided between the upper shelling mechanism 4 and the lower shelling mechanism 6. The lower end of the feeding device 3 is provided with a feeding device 7 which pushes the cashew nut in the horizontal upright state forward through a pushing plate 73. The interior of the feeding device 7 is provided with a feeding plate 8 and a pushing device 9. The feeding device 3 is connected to the upper shelling mechanism 4 and the lower shelling mechanism 6. A limited guide device 5 is provided between the structure 4. The limited guide device 5 is arranged opposite to the feeding plate 8 with a gap therebetween, and a feeding auxiliary channel is formed. The feeding plate 8 is provided with six feeding grooves 80. The side walls of the feeding grooves 80 are arc-shaped and adapted to the two sides of the cashew nuts in a horizontally upright state. The bottom of the feeding groove 80 passes through the feeding plate 8 and is arranged from deep to shallow on the upper end surface of the feeding plate 8. The feeding groove 80 changes from one end of the feeding plate to the other end in that its depth changes from deep to shallow. The width change is from wide to narrow, so as to assist in adjusting the state of the cashew nuts by changing the groove shape of the feeding groove 80; the pushing device 9 is provided with a pushing plate 94 extending outward, and the feeding plate 8 is arranged between the pushing device 9 and the upper part of the feeding device 7, and the pushing device 9 is arranged inside the feeding device 7 and the pushing plate 94 on the pushing device 9 is inserted into and passes through the feeding plate 8 to extend into the feeding groove 80, and the end of the feeding plate 8 is connected and supported by the lower shell opening mechanism 6 through the feeding support plate 14.

[0054] In the preferred embodiment, the driving mechanism 2 comprises a driving motor 20 and a transmission chain 21, the driving motor 20 is arranged at the lower end of the frame 1 and the transmission chain 21 is connected to the driving motor 20 through a sprocket at the output end of the driving motor 20, the transmission chain 21 is connected to the feeding main shaft 70 of the feeding device 7, and the feeding main shaft 70 drives the feeding auxiliary shaft 71.

[0055] In the preferred embodiment, the feeding device 3 comprises a feeding hopper 30, a feeding brush 31, a feeding main shaft 32, a feeding auxiliary shaft 33, a feeding chain 34 and a feeding plate 35, wherein the feeding brush 31 is installed on a brush roller 37 and rotates by being driven by the brush roller 37, the brush roller 37 rotates towards the feeding hopper 30 by being driven by the limiting chain 16 connected to the feeding main shaft 32, a part of the feeding brush 31 extends into the inside of the feeding hopper 30 and the lower end thereof is in contact with the end face of the feeding plate 35, the two ends of the feeding main shaft 32 and the feeding auxiliary shaft 33 are connected by the feeding chain 34, the feeding plate 35 is laid around the feeding chain 34 between the two ends of the feeding main shaft 32 and the feeding auxiliary shaft 33, the upper end face of the feeding plate 35 is provided with six inwardly recessed fruit feeding grooves 36, the cashews outside the fruit feeding grooves 36 are blocked in the feeding hopper 30 during the rotation of the brush roller 37 towards the feeding hopper 30, and the cashews in the fruit feeding grooves 36 are subjected to less resistance and can enter the feeding grooves 80 on the feeding plate 8 by the rotation of the feeding chain 34 and the cooperation of the feeding baffle 13.

[0056] In the preferred embodiment, the limiting and guiding device 5 comprises a mounting plate 50, a U-shaped plate 51 and a movable plate 52, the U-shaped plate 51 is arranged at the lower end of the mounting plate 50 and the opening thereof faces downward, the movable plate 52 is provided with a limiting hole 53 and is movably inserted into the long strip-shaped lifting hole 55 arranged in the U-shaped plate 51 through the limiting column 54 arranged in the limiting hole 53, so that the movable plate 52 can move up and down in the U-shaped plate 51, the lower end face of the movable plate 52 is provided with an inwardly recessed limiting groove 56, the limiting groove 56 is used to form a feeding auxiliary channel with the feeding grooves 80 of the feeding plate 8, the width of the feeding auxiliary channel can be adjusted according to the size of the classified cashews, so as to limit the cashews in the conveying process to keep them in an upright state, and the movable plate 52 which can move up and down is moderately pressed on the passing cashews according to its downward gravity, so that the movable plate 52 which can move up and down adapts to cashews of different sizes and avoids damage to individual large cashews.

[0057] In the preferred embodiment, the upper shell opening mechanism 4 comprises a support frame 40 and a plurality of upper shell opening knife sets arranged on the support frame 40, wherein the number of the upper shell opening knife sets in the embodiment is six and the sets are arranged side by side on the support frame 40, and each upper shell opening knife set comprises a lifting rod 41, a lifting spring 42, a lifting slide rail 43, a lifting slide block 44, an upper knife mounting plate 45, and an upper shell opening knife 46; specifically, the lifting rod 41 is sleeved with the lifting spring 42 and is fixed on the support frame 40 through a hexagonal nut 493, the lifting slide block 44 is fixed on the support frame 40 and connected with the lifting slide rail 44 through a connecting strip 492, the lower end of the lifting rod 41 is connected with the upper knife mounting plate 45 through the connecting strip 492, the upper shell opening knife 46 is arranged on the upper knife mounting plate 45, one end of the lifting spring 42 abuts against the lower end of the support frame 40, and the other end of the lifting spring 42 abuts against the upper end of the connecting strip 492, so that under the action of the lifting spring 42, the upper shell opening knife set always maintains a downward pressure, when the cashews are pushed by the pushing plate 73 to pass through the upper shell opening mechanism 4 and the lower shell opening mechanism 6, the cashews will lift up the upper shell opening knife 46 set to cause the lifting spring 42 to move upward, in this process, the lifting slide block 44 is limited by the lifting slide rail 43, the lifting spring 42 maintains the downward pressure and makes the upper shell opening knife 46 and the lower shell opening knife 62 contact and break the upper and lower parts of the cashew shell respectively, and the broken shell cracks will contact the first V-shaped block 48 and the second V-shaped block 63 and be completely broken by the protruding parts of the first V-shaped block 48 and the second V-shaped block 63.

[0058] In the preferred embodiment, the lower end surface of the upper knife mounting plate 45 is provided with a feeding groove 47, and the end of the feeding groove 47 is provided with a avoiding gap 494; the first V-shaped block 48, the first knife locking plate 49, and the first knife locking block 491 are installed on the upper knife mounting plate 45, the upper shell opening knife 46 is inserted into and passes through the avoiding gap 494 and is fixed by the first knife locking plate 49 cooperating with the first knife locking block 491, the first V-shaped block 48 is inserted from the lower end of the avoiding gap 494 and connected with the first knife locking plate 49 through a screw, and the first knife locking plate 49 is fixed on the upper end of the upper knife mounting plate 45, wherein the upper shell opening knife 46 is 1-3 mm higher than the end surface of the feeding groove 47, and is inserted into the cracked crack from the pointed part of the first V-shaped block 48, and the crack is broken by the first V-shaped block 48 according to the triangular shape from small to large to break the lower part of the nut shell.

[0059] In a preferred embodiment, the lower shell opening mechanism 6 includes a left knife holder 60, a right knife holder 61, a lower shell opening knife 62 and a second V-shaped block 63, wherein the left knife holder 60 and the right knife holder 61 are recessed at their respective positions to form a contoured channel 64 therebetween; the lower shell opening knife 62 is disposed in the contoured channel 64 between the left knife holder 60 and the right knife holder 61 and is fixed by screws, and the second V-shaped block 63 is inserted into the V-shaped notch formed by the ends of the left knife holder 60 and the right knife holder 61 and contacts the end of the lower shell opening knife 62, and the second V The two ends of the V-shaped block 63 are respectively fixed to the left tool holder 60 and the right tool holder 61 by screws; wherein, the lower shelling knife 62 and the second V-shaped block 63 are 1 to 3 mm higher than the end surface of the bottom of the profiling channel 64, so that after the lower shelling knife 62 cuts the nut shell, it is inserted into the cut crack from the tip part of the second V-shaped block 63, and then the crack is expanded from small to large according to the triangular shape of the second V-shaped block 63 to pry open the lower part of the nut shell. In this embodiment, the number of the lower shelling knife 62 is the same as the number of the upper shelling knife 46.

[0060] In a preferred embodiment, the feeding device 7 includes a feeding main shaft 70, a feeding sub-shaft 71, a feeding chain 72 and a pushing plate 73. There are two feeding chains 72, which are respectively arranged at the two ends of the feeding main shaft 70 and the feeding sub-shaft 71. The two ends of the pushing plate 73 are respectively connected to the feeding chains 72 at the two ends of the feeding main shaft 70 and the feeding sub-shaft 71, and the number of pushing plates 73 is more than 2; in addition, a propulsion chain 15 is also provided between the feeding main shaft 70 and the pushing main shaft 90 to drive the pushing main shaft 90 to rotate at the same time through the rotation of the feeding main shaft 70. The propulsion chain 15 is provided between the transmission chain 21 and the frame 1.

[0061] In a preferred embodiment, the pushing device 9 also includes a pushing main shaft 90, a pushing secondary shaft 91, a pushing chain 92 and a connecting cross plate 93. There are two pushing chains 92, which are respectively sleeved on the two ends of the pushing main shaft 90 and the pushing secondary shaft 91. The two ends of the connecting cross plate 93 are respectively connected to the pushing chains 92 at the two ends of the pushing main shaft 90 and the pushing secondary shaft 91, and the pushing plate 94 is arranged on the upper end surface of the connecting cross plate 93; in addition, an auxiliary sprocket 95 is provided at the lower end of the pushing secondary shaft 91, and a reverse chain 96 is sleeved between the auxiliary sprocket 95 and the feeding main shaft 32 of the feeding device 3. The outer side of the reverse chain 96 is adapted to the sprocket at the end of the pushing secondary shaft 91, so that the reverse chain 96 is driven by the rotation of the pushing secondary shaft 91, so that the direction of the feeding main shaft 32 is opposite to the direction of the pushing secondary shaft 91.

[0062] On the other hand, the present application also discloses a shell opening method of a fully automatic shell opening machine, comprising the following steps:

[0063] Step 1: Start the machine. The driving mechanism 2 drives the pushing device 9 to rotate toward the upper and lower shell opening mechanisms 6 through the transmission chain 21. Driven by the feeding chain 34, the feeding device 3 rotates toward the feeding baffle 13. The feeding spindle 32 of the feeding device 3 drives the brush roller 37 to rotate through the limiting chain 16.

[0064] Step 2: Pour cashew nuts into the feed hopper 30 of the feeding device 3. The cashew nuts entering the feed hopper 30 will randomly fall into the fruit feeding groove 36 of the feeding plate 35 and be transported toward the feeding baffle 13 as the feeding spindle 32 rotates. At this time, driven by the limiting chain 16, the brush roller 37 rotates toward the feed hopper 30, blocking the cashew nuts outside the fruit feeding groove 36 in the feed hopper 30. The cashew nuts falling into the fruit feeding groove 36 will turn with the feeding plate 35 and fall into the feeding groove 80 of the feeding plate 8 under the restriction of the feeding baffle 13;

[0065] Step 3: The fallen cashew nuts enter the feeding groove 80 of the feeding plate 8 and are corrected in position in the feeding groove 80 so that the curved nuts are in a horizontally upright position;

[0066] Step 4: The upright nut is pushed downward by the pushing plate 94 of the pushing device 9 and moves toward the upper and lower shell opening mechanisms 6. Then, the nut is kept upright by the limiting groove 56 of the movable plate 52 in the feeding groove 80 and moves forward on the pushing plate 73 toward the upper and lower shell opening mechanisms 6.

[0067] Step 5: The cashew nuts that reach between the upper and lower shell opening mechanisms 6 are pushed by the pusher plate 73 and the upper and lower shell opening knives 62 cooperate to cut the upper and lower shells of the cashew nuts;

[0068] Step 6: Since the upper and lower shell opening mechanisms exert a certain pressure on the shell of the cashew nut, under the thrust of the push plate 73, the upper and lower scratched shells of the cashew nut will be broken apart under the cooperation of the first V-shaped block 48 and the second V-shaped block 63, so that the pulp and the shell are separated, and the shell opening work is completed. With the action of the feeding device 7, the cashew nut falls into the first discharge hopper 10 or the second discharge hopper 11.

[0069] In this embodiment, the connection between each chain and each shaft is transmitted through the corresponding sprocket installed on each shaft. In addition, the standard chain is used for transmission and the bent plate chain is used for conveying. This is common knowledge and will not be repeated here.

[0070] In this embodiment, the upper shelling knife 46, the lower shelling knife 62, the first V-shaped block 48 and the second V-shaped block 63 are all made of tungsten steel. The high temperature and corrosion resistance of tungsten steel are utilized to prevent the juice of raw cashew nuts from corroding the upper shelling knife 46, the lower shelling knife 62, the first V-shaped block 48 and the second V-shaped block 63, thereby affecting their service life.

[0071] In summary, each device of the application is modularly designed, and during production, installation and maintenance, the independent components can be disassembled and assembled as needed, without the need to disassemble the entire device, which is convenient and time-saving.

[0072] In addition, under the indirect driving of the driving mechanism, the feeding device transports the cashews to be shelled towards the feeding baffle, and the cashews fall onto the feeding grooves on the feeding plate in the horizontal and vertical state with the assistance of the feeding baffle, and are moved from the deep part to the shallow part of the feeding groove towards the upper and lower shelling mechanisms under the pushing of the pushing plate of the pushing device, and the cashews in the shallow part of the feeding groove are kept in the horizontal and vertical state under the pushing of the feeding device and the limiting guide device to enter between the upper and lower shelling mechanisms, and the shelling, cracking and flesh separation processes are completed through the upper and lower shelling mechanisms, so that the whole process from the transportation of the cashews to the shelling treatment keeps the cashews in the horizontal and vertical state, so as to keep the cashews in the relatively ideal state to be processed during the transportation process, ensure the shelling efficiency and reduce the probability of damaging the flesh, and improve the production efficiency and product quality.

[0073] Although the above content has shown the embodiments of the application, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the application, and the ordinary skilled in the art can modify the above embodiments, but the modifications are included in the broad scope of the foregoing disclosure, drawings and claims.

Claims

1. A fully automatic cashew nut shelling machine, comprising a frame (1) provided with a driving mechanism (2), a first discharging hopper (10) and a second discharging hopper (11) provided at the lower portion of the frame (1), a feeding device (3) provided at the upper portion of the frame (1), a feeding baffle (13) provided at one end of the feeding device (3), an upper shelling mechanism (4) provided at the other end of the feeding device (3), a lower shelling mechanism (6) provided below the upper shelling mechanism (4), a feeding device (7) provided at the lower end of the feeding device (3), a feeding plate (8) and a pushing device (9) provided inside the feeding device (7), a limited position guiding device (5) provided between the feeding device (3) and the upper shelling mechanism (4), characterized in that: The feeding plate (8) is provided with a feeding groove (80), and the feeding groove (80) passes through the feeding plate (8) and is arranged from deep to shallow on the upper end surface of the feeding plate (8). The outer periphery of the pushing device (9) is provided with a pushing plate (94), and the feeding plate (8) is arranged between the pushing device (9) and the upper part of the feeding device (7). The pushing device (9) is arranged inside the feeding device (7) and the pushing plate (94) on the pushing device (9) is inserted into and passes through the feeding plate (8) and extends into the feeding groove (80). The end of the feeding plate (8) is connected to the lower shell opening mechanism (6).

2. The fully automatic cashew nut shelling machine according to claim 1, characterized in that: The driving mechanism (2) comprises a driving motor (20) and a transmission chain (21); the driving motor (20) is arranged at the lower end of the frame (1) and is connected to the transmission chain (21) via an output end; and the transmission chain (21) is connected to a feeding device (7).

3. The fully automatic cashew nut shelling machine according to claim 1, characterized in that: The feeding device (3) comprises a feeding hopper (30), a feeding brush (31), a feeding main shaft (32), a feeding sub-shaft (33), a feeding chain (34) and a feeding plate (35); the feeding brush (31) is arranged on one side of the feeding hopper (30) and in contact with the feeding plate (35); the feeding main shaft (32) and the feeding sub-shaft (33) are connected at both ends by the feeding chain (34); the feeding plate (35) is laid between the feeding chains (34) at both ends of the feeding main shaft (32) and the feeding sub-shaft (33); and the end surface of the feeding plate (35) is provided with a fruit feeding groove (36).

4. The fully automatic cashew nut shelling machine according to claim 1, characterized in that: The limiting guide device (5) comprises a mounting plate (50), a U-shaped plate (51) and a movable plate (52), wherein the U-shaped plate (51) is arranged at the lower end of the mounting plate (50), the movable plate (52) is arranged at the lower end of the U-shaped plate (51), and a limiting groove (56) is provided on the lower end surface of the movable plate (52).

5. The fully automatic cashew nut shelling machine according to claim 1, characterized in that: The upper shell opening mechanism (4) comprises a support frame (40) and an upper shell opening knife group arranged on the support frame (40), and the upper shell opening knife group comprises a lifting rod (41), a lifting spring (42), a lifting slide rail (43), a lifting slider (44), an upper knife plate (45) and an upper shell opening knife (46); the lifting rod (41) is sleeved with a lifting spring (42) and fixed on the support frame (40), the lifting slider (44) is fixed on the support frame (40) and connected to the lifting rod (41) by a slide rail, the lower end of the lifting rod (41) is connected to the upper knife plate (45), and the upper shell opening knife (46) is arranged on the upper knife plate (45).

6. The fully automatic cashew nut shelling machine according to claim 5, characterized in that: The lower end surface of the upper blade plate (45) is provided with a feeding trough (47), and the end of the feeding trough (47) is provided with an avoidance slot; the upper blade plate (45) is installed with a first V-shaped block (48), a first blade locking plate (49) and a first blade locking block (491); the upper shell opening knife (46) is inserted into and passes through the avoidance slot and is fixed by the first blade locking plate (49) and the first blade locking block (491); the first V-shaped block (48) is inserted from the lower end of the avoidance slot and connected to the first blade locking plate (49); the first blade locking plate (49) is fixed to the upper end of the upper blade plate (45).

7. The fully automatic cashew nut shelling machine according to claim 1, characterized in that: The lower shell opening mechanism (6) comprises a left knife holder (60), a right knife holder (61), a lower shell opening knife (62) and a second V-shaped block (63); a contoured channel (64) is formed between the left knife holder (60) and the right knife holder (61); the lower shell opening knife (62) is arranged in the contoured channel (64) between the left knife holder (60) and the right knife holder (61); and the second V-shaped block (63) is inserted into the V-shaped notch formed by the ends of the left knife holder (60) and the right knife holder (61) and contacts the end of the lower shell opening knife (62); wherein the lower shell opening knife (62) and the second V-shaped block (63) are higher than the bottom of the contoured channel (64).

8. The fully automatic cashew nut shelling machine according to claim 1, characterized in that: The feeding device (7) comprises a feeding main shaft (70), a feeding sub-shaft (71), a feeding chain (72) and a pushing plate (73). The number of the feeding chains (72) is two and they are respectively arranged on the two ends of the feeding main shaft (70) and the feeding sub-shaft (71). The two ends of the pushing plate (73) are respectively connected to the feeding chains (72) at the two ends of the feeding main shaft (70) and the feeding sub-shaft (71).

9. The fully automatic cashew nut shelling machine according to claim 1, characterized in that: The pushing device (9) also includes a pushing main shaft (90), a pushing secondary shaft (91), a pushing chain (92) and a connecting transverse plate (93). The number of the pushing chains (92) is two and they are respectively arranged on the two ends of the pushing main shaft (90) and the pushing secondary shaft (91). The two ends of the connecting transverse plate (93) are respectively connected to the pushing chains (92) at the two ends of the pushing main shaft (90) and the pushing secondary shaft (91). The pushing plate (94) is arranged on the upper end surface of the connecting transverse plate (93).

10. A shell opening method for a fully automatic shell opening machine, characterized in that: The fully automatic shell opening machine according to any one of claims 1 to 9 comprises the following steps: Step 1: Start the machine, the driving mechanism (2) drives the pushing device (9) to rotate toward the upper and lower shell opening mechanisms (6) through the transmission chain (21), and the feeding device (3) is driven by the feeding chain (34) to rotate toward the feeding baffle (13). The feeding spindle (32) of the feeding device (3) drives the brush roller (37) to rotate through the limiting chain (16); Step 2: Pour cashew nuts into the feed hopper (30) of the feeding device (3). The cashew nuts entering the feed hopper (30) will randomly fall into the fruit feeding groove (36) of the feeding plate (35) and are transported toward the feeding baffle (13) as the feeding spindle (32) rotates. At this time, driven by the material limiting chain (16), the brush roller (37) rotates toward the feed hopper (30), blocking the cashew nuts outside the fruit feeding groove (36) in the feed hopper (30). The cashew nuts falling into the fruit feeding groove (36) will flip with the feeding plate (35) and fall into the feeding groove (80) of the feeding plate (8); Step 3: The fallen cashew nuts enter the feeding groove (80) of the feeding plate (8) and are corrected in position in the feeding groove (80) so that the curved nuts are in a horizontally upright state; Step 4: The nut in the upright state is pushed by the pushing plate (94) of the pushing device (9) to move in the direction of the upper and lower shell opening mechanisms (6), and then the nut is kept in the upright state by the limiting groove (56) of the movable plate (52) in the feeding groove (80) and moves forward on the pushing plate (73) in the direction of the upper and lower shell opening mechanisms (6); Step 5: The cashew nuts that arrive between the upper and lower shell opening mechanisms (6) are pushed by the push plate (73) and the upper and lower shell opening knives (62) cooperate to cut the upper and lower shells of the cashew nut shells; Step 6: Since the upper and lower shell opening mechanisms (6) exert a certain pressure on the shell of the cashew nut, under the thrust of the push plate (73), the upper and lower shells of the cashew nut are broken apart under the cooperation of the first V-shaped block (48) and the second V-shaped block (63), so that the pulp and the shell are separated, wherein the pulp falls into the first discharge hopper and the shell falls into the second discharge hopper, and the shell opening work is completed.

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