Macadamia nut huller

Abstract

The application discloses a macadamia nut shell peeling device, which comprises a chassis and a third guide rail, a shell is arranged on the top of the chassis, a first guide rail is arranged on the top of the shell, and a second guide rail is arranged on the bottom of the shell; in the application, when the claw passes through the guide disc, the push rod is extruded inward by the guide disc, thereby pushing the metal wire and the top connected piston to move upward synchronously, when the piston moves to the maximum distance, the piston is blocked between the first air pipe and the second air pipe, at this time, external air enters the first air pipe through the air inlet, thereby recovering the air pressure in the suction cup, eliminating the adsorption force of the nut shell, and due to the fact that the distance between the corresponding two clamping discs is increased when the claw passes through the guide disc, the pulp is firstly dropped and discharged through the discharge chute, and the broken two half shells are separated from the suction cup after the adsorption force is completely eliminated and then discharged through the discharge chute, and the processing efficiency is further improved.

Description

Technical Field

[0001] This invention relates to the field of nut processing technology, and in particular to a device for peeling the shells of macadamia nuts. Background Technology

[0002] Macadamia nuts, also known as macadamia nuts, Australian walnuts, and Queensland chestnuts, have sweet kernels with a unique creamy aroma. They are high in oil and rich in nutrients. The kernels contain 75% to 79% fat, making them an ideal source of woody edible oil. In addition, they contain essential amino acids, vitamin C, potassium, phosphorus, and other nutrients. Macadamia nuts are also known as the "diamonds of the nut world" due to their unique shape and hard shell. During processing, the outer shell of the macadamia nuts needs to be removed, thus requiring a shell-removing device. Referring to publication number "CN105942546B," the disclosed "A Macadamia Nut Shelling Machine and Shelling Method" includes: a frame, a feeding device, a shell-removing device, a discharging device, and an electrical control box. The shell-removing device includes a shell-removing mechanism and a driving mechanism. The shell-removing mechanism includes a shell-removing box, a guide box cover, and... The invention comprises a cutter disc, shell-breaking blades, and a cutter disc shaft. A guide box cover and a shell-breaking chamber are fitted together to form a shell-breaking chamber. The cutter disc shaft passes through the shell-breaking chamber and is mounted on the frame via a bearing seat. The cutter disc includes a disc body and a first shell-breaking blade. The cutter disc is positioned inside the shell-breaking chamber and mounted on the cutter disc shaft, dividing the shell-breaking chamber into two crushing chambers. Second shell-breaking blades are installed on the inner walls of both sides of the crushing chamber. An inlet and an outlet are provided on the guide box cover. The shell-breaking method of this invention utilizes the shearing action of the first shell-breaking blade intersecting with the second shell-breaking blade during rotation to crack the shells of the nuts entering the crushing chamber, after which the kernels and shells are discharged by the discharge device.

[0003] Existing macadamia nut shell removal devices typically use a crushing method. Because macadamia nut shells are thick and hard, the shells can easily damage the kernel inside during the removal process. Damaged kernels can affect the quality of snack products when sold. Furthermore, the kernels and shells are of different sizes after crushing, making it difficult to separate them for subsequent processing. These methods have drawbacks. Summary of the Invention

[0004] In view of the above, the present invention addresses the deficiencies of the prior art, and its main objective is to provide a macadamia nut shell peeling device to solve the problems mentioned in the background above, such as the existing macadamia nut shell removal devices easily damaging the kernel, and the kernel and shell being of different sizes after crushing, which is not convenient for subsequent kernel and shell separation processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A macadamia nut shell peeling device includes a base frame and a third guide rail. The base frame has a shell mounted on top, and a first guide rail is mounted on top of the shell. A second guide rail is mounted on the bottom of the shell. The two ends of the third guide rail are bolted to one end of the first guide rail and one end of the second guide rail, respectively. A first synchronous pulley is provided between the first guide rail and the second guide rail.

[0007] Furthermore, two sealed rotary joints are symmetrically distributed at both ends of the first synchronous pulley, and the two sealed rotary joints are rotatably connected to one side of the outer casing; two sets of claws are symmetrically distributed at both sides of the first synchronous pulley, and each set of claws has several claws symmetrically distributed about the axis of the first synchronous pulley.

[0008] Furthermore, a clamping plate is installed on the top of each claw near the first synchronous pulley, and a suction cup is installed inside each clamping plate; a first spring rod is installed on the lower part of the side of each claw away from the first synchronous pulley, and the end of each first spring rod is connected to the outer wall of the first synchronous pulley; a connector is installed on the upper part of the side of each claw away from the first synchronous pulley, and a first air pipe is installed at one end of the connector, while the end of the first air pipe is connected to a suction cup; a second air pipe is installed at the other end of each connector, while the end of the second air pipe is connected to a sealing rotary joint.

[0009] Furthermore, a cutting machine is installed at the top of the base frame near the first synchronous pulley, and a second spring rod is installed at the bottom of the cutting machine near the first synchronous pulley, while the bottom of the second spring rod is connected to the top of the base frame; a movable block is provided inside the base frame near the first synchronous pulley, and a shell-opening knife is installed on the side of the movable block near the first synchronous pulley.

[0010] Furthermore, the first guide rail is located inside the feed trough, and the feed trough is installed on the top of the outer casing; a conveyor belt is installed on the upper part of the feed trough near the first synchronous pulley, and two guide rods are symmetrically installed on both sides of the conveyor belt near the first synchronous pulley; the two guide rods are respectively connected to two guide grooves, and the two guide grooves are respectively opened on both sides of one end of the feed trough; each guide rod is connected to a spring plate, and the spring plate is installed on the outer wall of the feed trough.

[0011] Furthermore, the bottom of the base frame is provided with a discharge chute, and two sliding grooves are symmetrically distributed on both sides of the base frame, and a slider is installed inside each sliding groove.

[0012] Furthermore, each slider is connected to one end of the movable block, and each slider is threadedly connected to an adjusting screw, with each adjusting screw mounted on one outer wall of the base frame.

[0013] Furthermore, two vacuum pumps are symmetrically distributed on the two outer walls of the outer casing, and each vacuum pump is connected to a sealed rotary joint.

[0014] Furthermore, a motor is installed inside the housing at the end away from the first synchronous pulley, and the output shaft of the motor is connected to the second synchronous pulley. At the same time, a synchronous belt connects the second synchronous pulley and the first synchronous pulley.

[0015] Furthermore, a bracket is installed at the top of the outer casing near the first synchronous pulley, and a stop block is installed in the middle of the bracket;

[0016] Furthermore, a guide disc is installed inside the housing near the end of the first synchronous pulley, and the guide disc wraps around the side of the first synchronous pulley away from the cutting machine.

[0017] Furthermore, the connection between the chuck and the first synchronous wheel is a rotatable connection, and the chuck, the first spring rod, the clamp, and the suction cup form a rotating structure;

[0018] Furthermore, a rotating roller is installed on the upper part of the inner wall of each of the aforementioned claws.

[0019] Furthermore, each of the aforementioned connectors has a piston installed inside, and each piston has a return spring installed at its bottom; each of the aforementioned pistons has a metal wire installed at its bottom, and each metal wire passes through a return spring.

[0020] Furthermore, each of the aforementioned metal wires is equipped with a push rod at its end, and each push rod penetrates the lower end of the inner wall of the claw.

[0021] Furthermore, the first air tube is connected to the interior of the connector, and the interior of the connector is connected to the interior of the second air tube. At the same time, each first air tube has an air window at the end near the suction cup.

[0022] Furthermore, the guide rod is connected to the conveyor belt by a rotatable connection, and the guide rod is connected to the guide groove by a sliding connection.

[0023] Furthermore, the guide rod, spring plate, and conveyor belt form a rotating structure.

[0024] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0025] 1. In this invention, a first guide rail, a second guide rail, and a third guide rail are provided. The outer walls of the first guide rail, the second guide rail, and the third guide rail are all shallowly arc-shaped. Since macadamia nuts are regularly spherical in shape, the feeding trough ensures that the macadamia nuts being processed are arranged one by one on the first guide rail. Furthermore, due to the obstruction at the end of the conveyor belt, the nuts are prevented from moving out of the feeding trough on their own. By controlling the start and stop of the conveyor belt, it can be ensured that only one nut is conveyed out of the feeding trough at a time. During the process of conveying nuts, the end of the conveyor belt rotates upward and stretches the spring plate to ensure that there is enough space for the nuts to pass through. After the conveyed nut leaves the conveyor belt, the spring plate will drive the end of the conveyor belt to quickly reset and prevent subsequent nuts from moving. Nuts that have subsequently moved out of the feeding trough will be temporarily stopped on the first guide rail by the obstruction of the stop block, which facilitates subsequent clamping by the clamping plate and improves the ease of use.

[0026] 2. In this invention, a first synchronous wheel, a chuck, and a clamping plate are provided. The first synchronous wheel rotates, causing the chuck to rotate synchronously. Since a guide plate is provided on one side of the first synchronous wheel, and both sides of the guide plate have a semi-circular structure with a thickness that gradually increases from both ends to the middle, when the chuck passes the outer side of the guide plate, the roller on the inner wall of the chuck slides along the surface of the guide plate. At this time, the distance between the corresponding chucks on both sides gradually increases and returns to its minimum when disengaging from the guide plate. The angle change of the chuck is adaptively adjusted by the contraction of the correspondingly connected first spring rod. The rotating chuck, in conjunction with the clamping plate, grips the chuck at the point above the first guide rail. The nut is grasped and continues to move along the third guide rail. During this process, a cutting machine cuts a vertical slit in the nut's shell. The nut then continues to move and the slit comes into contact with the shell-opening knife. The blade of the shell-opening knife gradually increases in thickness from top to bottom, and then crushes the shell in half by squeezing. During this process, the suction cup is kept under negative pressure by the vacuum pump, which can firmly adhere to the nut's shell, ensuring that the nut will not fall off during the cutting process, ensuring that the kernel is not damaged to the greatest extent during the shelling process, and ensuring that the shell remains in two halves after being crushed, which is convenient for subsequent separation.

[0027] 3. In this invention, the connector and push rod are initially connected to the suction cup, the first air pipe, the connector, and the second air pipe. At this time, the internal air pressure of the suction cup is consistent with the internal air pressure of the corresponding connected sealing rotary joint. When the claw passes the guide plate, the push rod is squeezed inward by the guide plate, which in turn pushes the metal wire and the piston connected to the top to move upward synchronously. When the piston moves to the maximum distance, it will block the space between the first and second air pipes. At this time, external air enters the first air pipe through the lifting mechanism, thereby restoring the air pressure inside the suction cup and eliminating the suction force on the nut shell. At the same time, as the claw passes the guide plate, the distance between the two corresponding clamping plates increases. At this time, the pulp will fall first and be discharged through the discharge chute. The two halves of the broken shell will detach after the suction force of the suction cup is completely eliminated and be discharged through the discharge chute, further improving the processing efficiency.

[0028] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0030] Figure 2 This is the present invention. Figure 1 Another perspective attempt;

[0031] Figure 3 This is the present invention. Figure 2 Another perspective attempt;

[0032] Figure 4 Yes, this is the invention. Figure 3 Another perspective attempt;

[0033] Figure 5 This is the present invention. Figure 4 Another perspective attempt;

[0034] Figure 6 This is the present invention. Figure 5 Cross-sectional view in the AA direction;

[0035] Figure 7 This is a three-dimensional structural diagram of the guide disk in this invention;

[0036] Figure 8 This is the present invention. Figure 7 Another perspective attempt;

[0037] Figure 9 This is a three-dimensional structural diagram of the chuck in this invention;

[0038] Figure 10 This is the present invention. Figure 9 Another perspective attempt;

[0039] Figure 11 This is the present invention. Figure 10 Cross-sectional view in the middle BB direction;

[0040] Figure 12 This is the present invention. Figure 9 Enlarged view of point C in the image

[0041] Figure 13 This is the present invention. Figure 11 Enlarged view of point D in the image.

[0042] The attached figures are labeled as follows:

[0043] 1. Base frame, 2. Housing, 3. First guide rail, 4. Second guide rail, 5. Third guide rail, 6. First synchronous pulley, 7. Sealed rotary joint, 8. Vacuum pump, 9. Motor, 10. Second synchronous pulley, 11. Synchronous belt, 12. Claw, 13. First spring rod, 14. Clamping plate, 15. Suction cup, 16. Stop bar, 17. Rotary roller, 18. Connector, 19. First air pipe, 20. Air window, 21. Second 21. Air tube, 22. Piston, 23. Return spring, 24. Metal wire, 25. Push rod, 26. Guide plate, 27. Cutting machine, 28. Second spring rod, 29. Movable block, 30. Shell opener, 31. Slider, 32. Slide groove, 33. Adjusting screw, 34. Discharge chute, 35. Feed chute, 36. Conveyor belt, 37. Guide groove, 38. Spring plate, 39. Support, 40. Stop block, 41. Guide rod. Detailed Implementation

[0044] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0045] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0046] Please refer to Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11As shown, the device includes a base frame 1 and a third guide rail 5. A housing 2 is mounted on the top of the base frame 1, and a first guide rail 3 is mounted on the top of the housing 2. A second guide rail 4 is mounted on the bottom of the housing 2. Both ends of the third guide rail 5 are bolted to one end of the first guide rail 3 and one end of the second guide rail 4, respectively. A first synchronous pulley 6 is provided between the first guide rail 3 and the second guide rail 4. Two sealed rotary joints 7 are symmetrically distributed at both ends of the first synchronous pulley 6, and the two sealed rotary joints 7 are rotatably connected to both sides of one end of the housing 2. Two sets of [unclear text - possibly related to the first synchronous pulley 6] are symmetrically distributed on both sides of the first synchronous pulley 6. Each set of 12 chucks is symmetrically distributed about the axis of the first synchronous pulley 6. A clamping plate 14 is mounted on the top of each chuck 12 near the first synchronous pulley 6, and a suction cup 15 is installed inside each clamping plate 14. A stop bar 16 is provided on the outer side of each clamping plate 14. A first spring rod 13 is mounted on the lower part of the side of each chuck 12 away from the first synchronous pulley 6, and the end of each first spring rod 13 is connected to the outer wall of the first synchronous pulley 6. A connector 18 is mounted on the upper part of the side of each chuck 12 away from the first synchronous pulley 6. Each connector 18 has a first air pipe 19 installed at one end, and the end of the first air pipe 19 is connected to a suction cup 15; the other end of each connector 18 is equipped with a second air pipe 21, and the end of the second air pipe 21 is connected to a sealing rotary joint 7; a cutting machine 27 is installed at the top of the base frame 1 near the first synchronous pulley 6, and a second spring rod 28 is installed at the bottom of the cutting machine 27 near the first synchronous pulley 6, and the bottom of the second spring rod 28 is connected to the top of the base frame 1; a movable block 29 is provided inside the base frame 1 near the first synchronous pulley 6, and the movable block 29 is close to A shell-opening knife 30 is installed on one side of the first synchronous pulley 6; the first guide rail 3 is located inside the feed trough 35, and the feed trough 35 is installed on the top of the outer shell 2; a conveyor belt 36 is installed on the upper part of the feed trough 35 near the first synchronous pulley 6, and two guide rods 41 are symmetrically installed on both sides of the conveyor belt 36 near the first synchronous pulley 6; the two guide rods 41 are respectively connected to two guide grooves 37, and the two guide grooves 37 are respectively opened on both sides of one end of the feed trough 35; each guide rod 41 is respectively connected to a spring plate 38, and the spring plate 38 is installed on the outer wall of the feed trough 35.

[0047] More specifically, the outer sides of the first guide rail 3, the second guide rail 4, and the third guide rail 5 are all shallow arc-shaped structures. The third guide rail 5 is a semi-circular structure, and the axis of the third guide rail 5 coincides with the axis of the first synchronous pulley 6.

[0048] As a further explanation of this embodiment, the cutting machine 27 cuts the shell of the nut, forming a slit on the shell. During the cutting process, the cutting machine 27, in conjunction with the second spring rod 28, can adaptively and finely adjust the distance between the cutting machine 27 and the nut.

[0049] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in this embodiment, the bottom of the base frame 1 is provided with a discharge trough 34, and two sliding grooves 32 are symmetrically distributed on both sides of the base frame 1, and a slider 31 is installed inside each sliding groove 32; each slider 31 is connected to one end of the movable block 29, and each slider 31 is threadedly connected to an adjusting screw 33, while each adjusting screw 33 is installed on one side of the outer wall of the base frame 1.

[0050] More specifically, by rotating the adjusting screw 33, the slider 31 can be driven to slide inside the slide groove 32, thereby driving the movable block 29 to move synchronously, thereby adjusting the distance between the shell-opening knife 30 installed on the movable block 29 and the first synchronous wheel 6.

[0051] As a further illustration of this embodiment, the thickness of the blade of the shell-opening knife 30 increases from top to bottom, and the shell-opening knife 30 is arc-shaped.

[0052] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in this embodiment, two vacuum pumps 8 are symmetrically distributed on the outer walls of both sides of the outer casing 2, and each vacuum pump 8 is connected to a sealed rotary joint 7; a motor 9 is installed inside the outer casing 2 at the end away from the first synchronous pulley 6, and the output shaft of the motor 9 is connected to the second synchronous pulley 10, while a synchronous belt 11 is connected between the second synchronous pulley 10 and the first synchronous pulley 6.

[0053] More specifically, while the motor 9 drives the second synchronous pulley 10 to rotate, it works in conjunction with the synchronous belt 11 to drive the first synchronous pulley 6 to rotate synchronously.

[0054] As a further explanation of this embodiment, the first synchronous wheel 6 drives the pawl 12 and the sealing rotary joint 7 to rotate synchronously while rotating.

[0055] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in this embodiment, a bracket 39 is installed at the top of the outer shell 2 near the first synchronous wheel 6, and a stop block 40 is installed in the middle of the bracket 39; a guide plate 26 is installed inside the outer shell 2 near the first synchronous wheel 6, and the guide plate 26 wraps around the side of the first synchronous wheel 6 away from the cutting machine 27.

[0056] More specifically, the connection between the stop 40 and the bracket 39 is a rotatable connection, used to prevent the nuts discharged from the feed trough 35 from continuing to move.

[0057] As a further explanation of this embodiment, both sides of the guide disk 26 have a semi-circular structure, and the thickness of both sides of the guide disk 26 increases from both ends towards the center of gravity.

[0058] Please refer to Figure 8 , Figure 8 , Figure 9 , Figure 10 and Figure 11 As shown, in this embodiment, the connection between the claw 12 and the first synchronous wheel 6 is a rotatable connection, and the claw 12, the first spring rod 13, the clamping plate 14 and the suction cup 15 form a rotating structure; a rotating roller 17 is installed on the upper part of the inner wall of each claw 12.

[0059] More specifically, when the chuck 12 passes the guide disk 26, the rotating roller 17 slides against the surface of the guide disk 26 to reduce friction.

[0060] As a further explanation of this embodiment, the first spring rod 13 automatically adjusts the angle of the pawl 12 through its own contraction and rebound.

[0061] Please refer to Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown, in this embodiment, each of the connectors 18 has a piston 22 installed inside, and each piston 22 has a return spring 23 installed at its bottom; each piston 22 has a metal wire 24 installed at its bottom, and each metal wire 24 passes through a return spring 23; each metal wire 24 has a push rod 25 installed at its end, and each push rod 25 passes through the lower end of the inner wall of the claw 12.

[0062] More specifically, the piston 22 is located inside the connector 18 near the junction of the first air pipe 19 and the second air pipe 21.

[0063] As a further illustration of this embodiment, the end of the push rod 25 has an arc-shaped structure, which can reduce the friction when passing through the guide plate 26.

[0064] Please refer to Figure 12 and Figure 13 As shown, in this embodiment, the first air tube 19 is connected to the interior of the connector 18, and the interior of the connector 18 is connected to the interior of the second air tube 21. At the same time, each first air tube 19 is provided with an air window 20 at the end near the suction cup 15.

[0065] More specifically, when the first air pipe 19 and the second air pipe 21 are connected, if the vacuum pump 8 is started, the air window 20 will continuously supply air into the interior of the first air pipe 19. Since the opening range of the air window 20 is very small, it will not have a decisive impact on the internal air pressure of the first air pipe 19 under this state.

[0066] As a further explanation of this embodiment, when the first air tube 19 is disconnected from the second air tube 21, the air window 20 allows external air to continue to enter the interior of the first air tube 19, balancing the air pressure of the first air tube 19 and the suction cup 15 with the outside, and eliminating the suction force of the suction cup 15.

[0067] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, in this embodiment, the guide rod 41 is connected to the conveyor belt 36 by rotation, and the guide rod 41 is connected to the guide groove 37 by sliding; the guide rod 41, the spring plate 38 and the conveyor belt 36 form a rotating structure.

[0068] More specifically, the conveyor belt 36 consists of two conveyor rollers, one large and one small, and a rubber belt, and is controlled by a servo motor. The end of the conveyor belt 36 penetrates into the inside of the feed trough 35, and in the initial state, it can prevent the nuts inside the feed trough 35 from moving outward.

[0069] As a further explanation of this embodiment, by starting the conveyor belt 36, the nuts are driven to move outward from the feed trough 35 by friction. During the outward movement of the nuts, the end of the conveyor belt 36 will rotate upward and then quickly return to its original position under the action of the spring plate 38.

[0070] The working principle of this invention is as follows: When in use, the nuts to be processed are first conveyed sequentially to the first guide rail 3 inside the feed trough 35. Then, the external power supply is turned on, the conveyor belt 36 is started, and the end of the nut is pushed out of the feed trough 35. During this process, the end of the conveyor belt 36 will be lifted up, which will drive the guide rod 41 to slide along the guide groove 37 until the nut is separated from the conveyor belt 36 and stops on the first guide rail 3 under the obstruction of the stop block 40. At the same time, the conveyor belt 36 is turned off, and the front end of the conveyor belt 36 is quickly reset under the contraction of the spring plate 38.

[0071] The motor 9 is started, driving the second synchronous wheel 10 to start rotating. The rotating second synchronous wheel 10, together with the synchronous belt 11, drives the first synchronous wheel 6 to start rotating simultaneously. While the first synchronous wheel 6 is rotating, it drives the claws 12 and the sealed rotary joint 7 to start rotating simultaneously. At the same time, two vacuum pumps 8 are started to ensure that the sealed rotary joint 7 is kept in a vacuum state. When the claws 12 on both sides pass the first guide rail 3, they work with the clamping plate 14 and the suction cup 15 to attract and clamp the nuts on the top of the first guide rail 3. After pushing the stop block 40 to rotate, the nuts are carried to slide along the third guide rail 5. At this time, the cutting machine 27 is started to cut a slit on the shell of the nut that has passed. The slit on the nut that continues to move will continue to slide along the shell-opening knife 30. As the thickness of the slit sewn by the shell-opening knife 30 gradually increases, as the nut moves, it will continue to squeeze the shells on both sides of the slit until the shells are squeezed in half.

[0072] After the nut is removed from the shelling knife 30, the claw 12 gradually rotates and begins to pass through the guide plate 26. At this time, the roller 17 on the inner wall of the claw 12 begins to roll along the surface of the guide plate 26, so the distance between the two corresponding claws 12 begins to increase. At this time, the pulp falls first and is discharged through the discharge chute 34, while the shell halves are respectively attached to the two suction cups 15. When the claw 12 passes through the guide plate 26, the guide plate 26 begins to gradually squeeze the push rod 25 inward. While the push rod 25 slides inward, it pushes the piston 22 upward through the metal wire 24. At the same time, the piston 22 begins to stretch the return spring 23. When the piston 22 completely blocks the space between the first air pipe 19 and the second air pipe 21, the internal air pressure of the first air pipe 19 and the suction cup 15 is quickly restored under the action of the air window 20. At this time, the suction force of the suction cup 15 is eliminated, and the shell automatically detaches from the suction cup 15 and is discharged through the discharge chute 34.

[0073] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A device for peeling the shells of macadamia nuts, characterized in that: Includes a base frame (1) and a third guide rail (5). The base frame (1) is equipped with a housing (2) on top, and a first guide rail (3) is installed on the top of the housing (2). At the same time, a second guide rail (4) is installed on the bottom of the housing (2). The two ends of the third guide rail (5) are bolted to one end of the first guide rail (3) and one end of the second guide rail (4), respectively. A first synchronous pulley (6) is provided between the first guide rail (3) and the second guide rail (4). The first synchronous pulley (6) has a sealed rotary joint (7) installed symmetrically at both ends, and the two sealed rotary joints (7) are rotatably connected to one side of the outer shell (2); a set of claws (12) are installed symmetrically on both sides of the first synchronous pulley (6), and each set of claws (12) is provided with several claws symmetrically about the axis of the first synchronous pulley (6). Each of the aforementioned claws (12) has a chuck (14) installed on the side of its top closest to the first synchronous wheel (6), and a suction cup (15) installed inside each chuck (14); a first spring rod (13) is installed on the lower part of the side of each of the aforementioned claws (12) away from the first synchronous wheel (6), and the end of each first spring rod (13) is connected to the outer wall of the first synchronous wheel (6); a connector (18) is installed on the upper part of the side of each of the aforementioned claws (12) away from the first synchronous wheel (6), and a first air pipe (19) is installed at one end of the connector (18), while the end of the first air pipe (19) is connected to a suction cup (15); a second air pipe (21) is installed at the other end of each of the aforementioned connectors (18), while the end of the second air pipe (21) is connected to a sealing rotary joint (7); A cutting machine (27) is installed at the top of the base frame (1) near the first synchronous pulley (6), and a second spring rod (28) is installed at the bottom of the cutting machine (27) near the first synchronous pulley (6), while the bottom of the second spring rod (28) is connected to the top of the base frame (1); a movable block (29) is provided inside the base frame (1) near the first synchronous pulley (6), and a shell-opening knife (30) is installed on the side of the movable block (29) near the first synchronous pulley (6); The first guide rail (3) is located inside the feed trough (35), and the feed trough (35) is installed on the top of the outer shell (2); a conveyor belt (36) is installed on the upper part of the feed trough (35) near the first synchronous pulley (6), and a guide rod (41) is symmetrically installed on both sides of the conveyor belt (36) near the first synchronous pulley (6); the two guide rods (41) are respectively connected to two guide grooves (37), and the two guide grooves (37) are respectively opened on both sides of one end of the feed trough (35); each guide rod (41) is respectively connected to a spring plate (38), and the spring plate (38) is installed on the outer wall of the feed trough (35); The inner end of the outer casing (2) near the first synchronous pulley (6) is equipped with a guide plate (26), and the guide plate (26) wraps around the side of the first synchronous pulley (6) away from the cutting machine (27); Each of the aforementioned connectors (18) has a piston (22) installed inside, and a return spring (23) is installed at the bottom of each piston (22); a metal wire (24) is installed at the bottom of each of the aforementioned pistons (22), and each metal wire (24) passes through a return spring (23). Each of the metal wires (24) is fitted with a push rod (25) at its end, and each push rod (25) passes through the lower end of the inner wall of the claw (12).

2. The macadamia nut shell peeling device according to claim 1, characterized in that: The bottom of the base frame (1) is provided with a discharge groove (34), and a sliding groove (32) is symmetrically distributed on both sides of the base frame (1), and a slider (31) is installed inside each sliding groove (32). Each slider (31) is connected to one end of the movable block (29), and each slider (31) is threadedly connected to an adjusting screw (33), while each adjusting screw (33) is installed on one side of the outer wall of the base frame (1).

3. The macadamia nut shell peeling device according to claim 1, characterized in that: A vacuum pump (8) is symmetrically installed on each of the two outer walls of the outer shell (2), and each vacuum pump (8) is connected to a sealed rotary joint (7); A motor (9) is installed inside the outer casing (2) at the end away from the first synchronous pulley (6), and the output shaft of the motor (9) is connected to the second synchronous pulley (10). At the same time, a synchronous belt (11) is connected between the second synchronous pulley (10) and the first synchronous pulley (6).

4. The macadamia nut shell peeling device according to claim 1, characterized in that: A bracket (39) is installed on the top of the outer casing (2) near the first synchronous pulley (6), and a stop block (40) is installed in the middle of the bracket (39).

5. The macadamia nut shell peeling device according to claim 1, characterized in that: The connection between the chuck (12) and the first synchronous wheel (6) is a rotatable connection, and the chuck (12), the first spring rod (13), the clamp (14) and the suction cup (15) form a rotating structure; Each of the aforementioned claws (12) has a rotating roller (17) installed on the upper part of its inner wall.

6. The macadamia nut shell peeling device according to claim 1, characterized in that: The first air tube (19) is connected to the interior of the connector (18), and the interior of the connector (18) is connected to the interior of the second air tube (21). At the same time, each first air tube (19) has an air window (20) at the end near the suction cup (15).

7. The macadamia nut shell peeling device according to claim 1, characterized in that: The guide rod (41) is connected to the conveyor belt (36) by rotation, and the guide rod (41) is connected to the guide groove (37) by sliding. The guide rod (41), spring plate (38) and conveyor belt (36) form a rotating structure.

Images