A low-damage shelling machine for thin-shelled pecans

Abstract

This invention discloses a low-damage shell-breaking machine for thin-shelled pecans, relating to the field of thin-shelled pecan processing technology. It includes a main frame, with a feeding hopper fixedly mounted on one side of the top and a discharging hopper fixedly mounted on the other side. It also includes a material conveying mechanism, a posture adjustment mechanism, and a shell-breaking mechanism. The material conveying mechanism includes an upper conveyor chain assembly, a lower conveyor chain assembly, and a servo motor. The shell-breaking mechanism includes a laser cutting module, splitting blades, and a magnetic pushing mechanism. This invention relies on the laser cutting module to cut incisions on both sides of the shell. Then, the upper and lower conveyor chain assemblies continue to hold the pecan and move it laterally past the splitting blades. The relative motion causes the distributed splitting blades to cut into the laser-cut incisions on the shell, facilitating the separation of the shell from top to bottom, reducing damage to the kernel, and improving the efficiency of subsequent kernel separation.

Description

Technical Field

[0001] This invention relates to the field of thin-shelled pecan processing technology, specifically to a low-damage shell-breaking machine for thin-shelled pecans. Background Technology

[0002] Thin-shelled pecans, also known as pecans, are rich in fats, sugars, proteins, various vitamins, minerals, and antioxidants. They are a highly nutritious nut with a large market demand, a wide range of product lines, and high economic value. Their shells are thin and generally oval in shape. They are usually shelled according to product needs to facilitate the effective separation of the kernel from the shell and the extraction of the kernel for product processing.

[0003] Currently, in the initial processing of thin-shelled pecans, the shell-breaking process mainly relies on mechanical extrusion or impact. For example, pecans are conveyed through a conveyor device and then through an extrusion mechanism. The extrusion mechanism generally adopts a rotary extrusion method, with multiple extrusion protrusions distributed circumferentially on the rotating part. The rotating part drives the distributed extrusion protrusions to rotate through the conveyor device, thereby extruding and breaking the shells of the pecans on the conveyor device.

[0004] The shortcomings of existing thin-shelled pecan shelling equipment are as follows: While mechanical extrusion can crush the shell, it can also easily crush the kernel. During the crushing process, the shell naturally deforms, and under external pressure, it deforms inward, thus affecting the kernel. Since pecan kernels are generally brittle, they are easily broken under pressure, resulting in kernel damage and low shell-kernel separation efficiency. This severely impacts the processing quality and production efficiency of thin-shelled pecans, causing unnecessary economic losses and energy consumption. Furthermore, it restricts the capacity improvement and market competitiveness of primary processing equipment for thin-shelled pecans. Summary of the Invention

[0005] The purpose of this invention is to provide a low-damage shelling machine for thin-shelled pecans, so as to solve the technical problem that the shelling process of thin-shelled pecans is prone to damage to the pecan kernels, which affects the product quality.

[0006] The technical problem to be solved by this invention can be achieved through the following technical solution:

[0007] A low-damage shelling machine for thin-shelled pecans includes a frame body, with a feeding hopper fixedly installed on one side of the top of the frame body and a discharging hopper fixedly installed on the other side. It also includes:

[0008] The material conveying mechanism includes an upper conveyor wheel chain group, a lower conveyor wheel chain group, and a servo motor. The upper conveyor wheel chain group and the lower conveyor wheel chain group cooperate with each other and are installed inside the frame body. The main shaft end of the servo motor is provided with a synchronous transmission mechanism, and both the upper conveyor wheel chain group and the lower conveyor wheel chain group are connected to the synchronous transmission mechanism.

[0009] An attitude adjustment mechanism is configured at one end of the lower conveyor chain assembly.

[0010] The shell-breaking mechanism includes a laser cutting module, a splitting blade, and a magnetic driving mechanism. The laser cutting module is provided in two sets and is distributed in pairs on both sides of the lower conveyor wheel chain assembly. The splitting blade is provided in two sets and is distributed in pairs on both sides of the lower conveyor wheel chain assembly. The magnetic driving mechanism is located above the area between the splitting blade and the laser cutting module and cooperates with the upper conveyor wheel chain assembly.

[0011] As a further embodiment of the present invention: the upper conveyor wheel chain assembly includes an upper wheel body and an upper chain. Two sets of upper wheel bodies are provided and are rotatably connected to the top two sides of the frame body respectively. The upper chain is configured between the two sets of upper wheel bodies. The upper chain includes a first chain post, a first fixed clamping plate, a second fixed clamping plate, and a rotating drum. Multiple first chain posts are provided, and a movable connecting member connects adjacent first chain posts. Multiple first and second fixed clamping plates are provided. One end of each first chain post is fixedly connected to the first fixed clamping plate, and the other end is fixedly connected to the second fixed clamping plate. Multiple rotating drums are provided, and each rotating drum is configured between a corresponding first and second fixed clamping plate. A rotating sleeve is rotatably connected to each first chain post. Multiple elastic connecting bodies are circumferentially connected to the outer wall of the rotating sleeve, and the rotating sleeve is connected to the corresponding rotating drum through the elastic connecting bodies. A limiting top member that cooperates with the magnetic push mechanism is provided on the first fixed clamping plate.

[0012] As a further embodiment of the present invention: the limiting top member includes a U-shaped connecting groove, a U-shaped slider, and a supporting spring. The U-shaped connecting groove is longitudinally formed on the first fixed clamping plate. The U-shaped slider is slidably inserted into the U-shaped connecting groove. The U-shaped slider includes a magnetic slider and a push rod. The magnetic slider is slidably disposed at the inner top of the U-shaped connecting groove. Two push rods are provided and are respectively fixedly connected to the two ends of the magnetic slider. The push rods are slidably inserted into the U-shaped connecting groove. The magnetic slider and the U-shaped connecting groove are also connected by a supporting spring.

[0013] As a further embodiment of the present invention: the magnetic driving mechanism includes a fixed horizontal plate and a main magnet. The fixed horizontal plate is fixedly connected inside the main frame body and is located above the area between the laser cutting module and the splitting blade. Multiple main magnets are provided and are horizontally fixedly distributed at the bottom of the fixed horizontal plate. The magnetic poles of the main magnets and the magnetic sliders are the same at their opposite ends. A fixed magnet is fixedly installed on the side of the second fixed clamping plate near the main magnets, and the magnetic poles of the fixed magnets and the main magnets are the same at their opposite ends.

[0014] As a further aspect of the present invention: each set of movable connecting parts includes a first horizontal shaft, a first U-shaped rotating part, and a first connecting rotating block. The first U-shaped rotating part is fixedly connected to one end of the first chain post, and the first connecting rotating block is fixedly connected to the other end of the first chain post. The first U-shaped rotating part corresponding to each first chain post cooperates with the first connecting rotating block corresponding to the adjacent first chain post. The first horizontal shaft passes through the cooperating first U-shaped rotating part and the first connecting rotating block. A limiting block is fixedly connected on the first horizontal shaft. Two limiting blocks are provided and distributed on both sides of the first U-shaped rotating part. The upper wheel body includes two wheel discs, and the two wheel discs are fixedly connected together. Multiple first grooves cooperating with the first horizontal shaft are distributed circumferentially on both wheel discs.

[0015] As a further embodiment of the present invention: the lower conveyor wheel chain assembly includes a lower wheel body and a lower chain. There are two lower wheel bodies, which are rotatably connected to the inner bottom sides of the frame body respectively. The lower chain is connected between the two lower wheel bodies and cooperates with the upper chain.

[0016] As a further aspect of the present invention: two lower chains are provided, the two lower chains are parallel to each other and distributed on both sides of the lower wheel body, and a conveying connector that cooperates with the lower wheel body is provided between the two lower chains.

[0017] As a further aspect of the present invention: both lower chains include a wheel and a second chain post; multiple wheels and second chain posts are provided, and each wheel is rotatably connected to a corresponding second chain post; a second U-shaped rotating component is fixedly connected to one end of each second chain post, and a second connecting rotating block is fixedly connected to the other end, and the second U-shaped rotating component corresponding to each second chain post cooperates with the second connecting rotating block corresponding to the adjacent second chain post; the conveying connector includes a second horizontal shaft, multiple second horizontal shafts are provided, and each group of cooperating second U-shaped rotating components and second connecting rotating blocks is rotatably connected to one end of the corresponding second horizontal shaft; multiple second grooves that cooperate with the second horizontal shafts are circumferentially opened on the edge of the lower wheel body; limit clamps are fixedly connected to both sides of the middle position of each second horizontal shaft, and the limit clamps cooperate with both sides of the lower wheel body.

[0018] As a further embodiment of the present invention: the synchronous transmission mechanism includes a double-sided toothed synchronous belt and transition guide pulleys. The main shaft of the servo motor is coaxially connected to the lower wheel body. Two sets of transition guide pulleys are provided and are rotatably connected to the inner sides of the main frame body respectively. The double-sided toothed synchronous belt is connected between the two sets of transition guide pulleys. Each lower wheel body and upper wheel body is coaxially connected to a synchronous pulley, and each synchronous pulley is connected to the double-sided toothed synchronous belt.

[0019] As a further aspect of the present invention: the attitude adjustment mechanism includes a lever, which is fixedly connected inside the frame body and is positioned on one side of the lower chain.

[0020] The beneficial effects of this invention are:

[0021] 1. In this invention, the walnut is carried by an upper and lower conveyor chain assembly, which clamps the walnut and moves it laterally through a distributed laser cutting module and splitting blade. When passing through the laser cutting module, the laser cutting module cuts incisions on both sides of the shell. Then, the upper and lower conveyor chain assemblies continue to hold the walnut and move it laterally through the splitting blade. The relative motion causes the distributed splitting blade to cut into the laser-cut incisions on the shell, thereby facilitating the separation of the shell from top to bottom, reducing damage to the kernel, and improving the efficiency of subsequent kernel separation.

[0022] 2. In this invention, when the upper and lower conveyor wheel chains clamp the walnut into the area between the laser cutting module and the splitting blade, there is a repulsive magnetic force between the magnetic slider and the distributed main magnets in the upper conveyor wheel chain. This causes the magnetic slider to drive the connected top rod to descend and block the position of the advancing walnut. At the same time, a repulsive magnetic force is also generated between the fixed magnet and the distributed main magnets, which facilitates the descent of the corresponding rotating drum to further compress the walnut, preventing the walnut shell from shifting position after laser cutting. This allows the walnut to smoothly reach the position of the splitting blade, so that the splitting blade can cut into the cut to break the shell. Meanwhile, the top rod limits the position at the tail of the walnut, preventing the walnut from being unable to maintain its forward movement and complete the shell breaking due to excessive resistance from the splitting blade.

[0023] 3. The servo motor of this invention drives the upper conveyor chain group and the lower conveyor chain group to run synchronously through a double-sided toothed synchronous belt, synchronous pulley and transition guide pulley. The upper conveyor chain group and the lower conveyor chain group are distributed vertically. The lower conveyor chain group includes two lower chains, which facilitates the automatic conveying of walnuts by effectively clamping them. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0027] Figure 3 yes Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0028] Figure 4 This is a schematic cross-sectional view of the connection between the rotating cylinder and the first chain post in this invention.

[0029] Figure 5 This is a schematic cross-sectional view of the connection between the magnet slider, the push rod, and the first fixed clamping plate in this invention.

[0030] Figure 6 This is a schematic diagram of the structure in which the upper wheel body, lower wheel body, and servo motor are connected in cooperation in this invention;

[0031] Figure 7 yes Figure 6 A magnified schematic diagram of the local structure at point B;

[0032] Figure 8 This is a top view of the structure of the multiple sequentially connected rotating drums and the upper wheel body in this invention.

[0033] Figure 9 This is a top view of the structure of the two sets of multiple sequentially connected rotating wheels and the lower wheel body in this invention.

[0034] Figure 10 This is a top view of the relative positional distribution of the laser cutting module and the splitting blade in this invention.

[0035] Figure 11 This is a partial structural diagram showing the relative positional distribution of the upper and lower chains in this invention;

[0036] Figure 12 yes Figure 11 A magnified schematic diagram of the structure at point C.

[0037] In the diagram: 1. Main frame; 2. Feed bin; 3. Servo motor; 4. Controller; 5. Lower wheel; 6. Upper wheel; 7. Upper chain; 8. Lower chain; 9. Discharge bin; 10. Fixed cross plate; 11. Main magnet; 12. Splitting blade; 13. Laser cutting module; 14. Magnetic wheel; 15. Drive motor; 16. Push rod; 17. First chain column; 18. First fixed clamping plate; 19. Rotary drum; 20. Second fixed clamping plate; 21. Elastic connector; 22. Rotating sleeve; 23. U-shaped connection. 24. Slide groove; 25. Magnetic slider; 26. Support spring; 27. Fixed magnet; 28. Transition guide wheel; 29. ​​Double-sided toothed synchronous belt; 30. Synchronous pulley; 31. Second connecting rotating block; 32. Image recognition camera; 33. Lever; 34. Walnut; 35. First horizontal axis; 36. Limiting block; 37. First connecting rotating block; 38. First groove; 39. Rotating wheel; 40. Second chain post; 41. Second U-shaped rotating component; 42. Second horizontal axis; 43. Limiting clamp block. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figures 1-12 As shown, a thin-shelled pecan shell-breaking machine is used to break open the shells of thin-shelled pecans (walnuts) and reduce damage to the kernels, thereby improving the efficiency of subsequent kernel-shell separation. The machine includes a frame body 1, which comprises an outer cover and an internal supporting steel frame. A feeding hopper 2 is fixedly installed on one side of the top of the frame body 1, allowing pecans 33 to enter the machine body 1 for shell-breaking. A discharge hopper 9 is fixedly installed on the other side of the frame body 1, guiding the already shelled pecans 33 out.

[0040] It should be noted that when processing and shelling walnuts in batches, the size of the walnuts should be pre-screened, and walnuts of the same size should be put into the shelling machine of this solution for processing.

[0041] The shell-breaking machine also includes a material conveying mechanism, a posture adjustment mechanism, and a shell-breaking mechanism. The material conveying mechanism includes an upper conveyor wheel chain assembly, a lower conveyor wheel chain assembly, and a servo motor 3. The upper conveyor wheel chain assembly is installed on the upper side inside the main frame 1, and the lower conveyor wheel chain assembly is installed on the lower side inside the main frame 1. The upper and lower conveyor wheel chains cooperate with each other, and one end of the lower conveyor wheel chain assembly is located at the bottom of the feed hopper 2 to convey the walnuts 33 to the area below the upper conveyor wheel chain assembly. Then, the upper and lower conveyor wheel chain assemblies together clamp and convey the walnuts. The other end of the lower conveyor wheel chain assembly is connected to the discharge bin 9 to facilitate the conveying of the shelled walnuts 33 into the discharge bin 9 and then discharge them; the servo motor 3 is fixedly connected to the outside of the frame body 1, and the main shaft of the servo motor 3 passes through the inside of the frame body 1. The main shaft end of the servo motor 3 is equipped with a synchronous transmission mechanism, and both the upper and lower conveyor wheel chain assemblies are connected to the synchronous transmission mechanism. The servo motor 3 drives the upper and lower conveyor wheel chain assemblies to move synchronously through the synchronous transmission mechanism, which facilitates the transmission of walnuts 33.

[0042] The attitude adjustment mechanism is set at one end of the lower conveyor chain assembly to adjust the attitude of the walnut fruit 33;

[0043] The shell-breaking mechanism includes a laser cutting module 13, a splitting blade 12, and a magnetic drive mechanism. Two sets of laser cutting modules 13 are provided, paired and distributed on both sides of the lower conveyor chain assembly. The laser cutting modules 13 are fixedly connected to the supporting steel frame inside the main frame 1. When the walnut fruit 33 is conveyed through the area where the laser cutting module 13 is located, the laser beam emitted by the laser cutting module 13 is used to cut incisions on both sides of the walnut fruit 33. A laser sensor switch for activation can be installed between the two laser cutting modules 13. When the walnut fruit 33 passes the location of the laser cutting module 13, the laser sensor switch is blocked, generating feedback, causing the laser cutting module 13 to activate. 3. The laser is activated to cut both sides of the walnut fruit 33. Two splitting blades 12 are also provided, and they are distributed in pairs on both sides of the lower conveyor chain assembly. The splitting blades 12 are fixed to the support steel frame inside the main frame 1 by screws. Multiple screw holes are distributed horizontally at the corresponding positions of the support steel frame to facilitate the installation and adjustment of the splitting blades 12. This allows the distance between the blades of the two splitting blades 12 to be adjusted according to the size of the walnut fruit 33. The splitting blades 12 and the laser cutting module 13 are horizontally aligned. The magnetic push mechanism is set above the area between the splitting blades 12 and the laser cutting module 13, and the magnetic push mechanism cooperates with the upper conveyor chain assembly.

[0044] When the walnut 33 is held and moved between the laser cutting module 13 and the splitting blade 12 by the upper and lower conveyor wheel chains, the magnetic push mechanism generates a magnetic force on the upper conveyor wheel chain, which further exerts pressure and push on the walnut 33, ensuring that the walnut 33 passes stably through the position of the splitting blade 12. Relying on the relative motion, the splitting blade 12 opens the shell at the laser cut on both sides of the walnut 33, realizing the shell of the walnut 33 is broken from top to bottom, which facilitates the subsequent high-efficiency shelling process. This avoids the splitting blade 12 getting stuck in the cut on both sides of the walnut 33 and getting stuck, and also avoids the walnut 33 slipping between the upper and lower conveyor wheel chains, which would prevent it from moving forward effectively to complete the shell breaking.

[0045] It should be noted that the splitting blade 12 is thinner at the front and thicker at the back. When the laser-cut walnut fruit 33 is transported to the splitting blade 12, the thinner front part of the blade makes it easier to insert into the cut. Then, relying on relative movement and the gradually thickening blade, the shell is opened up.

[0046] In some specific implementation plans, such as Figures 2 to 4 As shown, the upper conveyor chain assembly includes an upper wheel body 6 and an upper chain 7. Two sets of upper wheel bodies 6 are provided, rotatably connected to the top sides of the frame body 1 via rotating shafts. The upper chain 7 is fitted between the two sets of upper wheel bodies 6. The upper chain 7 includes a first chain post 17, a first fixed clamping plate 18, a second fixed clamping plate 20, and a rotating drum 19. Multiple first chain posts 17 are provided, with movable connecting parts connecting adjacent first chain posts 17. Multiple first fixed clamping plates 18 and second fixed clamping plates 20 are also provided. One end of each first chain post 17 is fixedly connected to a first fixed clamping plate 18, and the other end is fixedly connected to a second fixed clamping plate 20. Both the first fixed clamping plates 18 and 20 are circular plates. The first chain post 17 vertically penetrates the center of the first fixed clamping plate 18 and the second fixed clamping plate 20. Multiple cylinders 19 are provided, and each rotating cylinder 19 is positioned between the corresponding first fixed clamping plate 18 and second fixed clamping plate 20. Each first chain post 17 is rotatably connected to a rotating sleeve 22, which can rotate around the first chain post 17. Multiple elastic connectors 21 are circumferentially connected to the outer wall of the rotating sleeve 22, and the rotating sleeve 22 is connected to the corresponding rotating cylinder 19 through the elastic connectors 21. The elastic connector 21 can be composed of two bent elastic rods or elastic plates, which can bend and generate a rebound force when subjected to force. In this way, the rotating cylinder 19 can shift its position relative to the first fixed clamping plate 18 and the second fixed clamping plate 20 when subjected to compressive force. At the same time, the rotating cylinder 19 can also rotate relative to the first chain post 17 by relying on the rotating sleeve 22. The first fixed clamping plate 18 is provided with a limiting top piece that cooperates with the magnetic push mechanism.

[0047] Among them, such as Figure 5As shown, the limiting top component includes a U-shaped connecting groove 23, a U-shaped slider, and a support spring 25. The U-shaped connecting groove 23 is longitudinally opened on the first fixed clamping plate 18 and is a longitudinal through groove. The U-shaped slider is slidably inserted into the U-shaped connecting groove 23. The U-shaped slider includes a magnetic slider 24 and a push rod 16. The magnetic slider 24 is slidably disposed on the inner top of the U-shaped connecting groove 23. Two push rods 16 are provided and are respectively fixedly connected to the two ends of the magnetic slider 24. The push rods 16 are slidably inserted into the U-shaped connecting groove 23. The magnetic slider 24 and the U-shaped connecting groove 23 are also connected by a compressible support spring 25.

[0048] In some specific implementation plans, such as Figure 3 As shown, the magnetic driving mechanism includes a fixed horizontal plate 10 and a main magnet 11. The fixed horizontal plate 10 is fixedly connected to the inside of the frame body 1 by a bracket, and the fixed horizontal plate 10 is located above the area between the laser cutting module 13 and the splitting blade 12. Multiple main magnets 11 are provided and are horizontally fixedly distributed at the bottom of the fixed horizontal plate 10. The magnetic poles of the main magnets 11 and the magnetic slider 24 are the same at their respective ends. A fixed magnet 26 is fixedly installed on the side of the second fixed clamping plate 20 near the main magnet 11, and the magnetic poles of the fixed magnet 26 and the main magnet 11 are the same at their respective ends.

[0049] When the upper chain 7 and the lower conveyor wheel chain assembly clamp the walnut 33 to the position of the laser cutting module 13, the rotating drum 19 at the corresponding position of the upper chain 7 enters the area above the laser cutting module 13 and the splitting blade 12, and is also below the horizontally distributed main magnet 11. Thus, the magnetic slider 24 corresponding to each rotating drum 19 entering this area slides down under the repulsive magnetic force of the same magnetic poles, overcoming the elastic force of the support spring 25. This drives the connected push rod 16 to descend, passing through the bottom of the first fixed clamping plate 18. The position of the first fixed clamping plate 18 corresponds to the tail of the advancing walnut 33. Thus, the push rod 16 covers the tail of the walnut 33, facilitating the pushing of the walnut 33 through the position of the splitting blade 12, thus facilitating shell breaking. Simultaneously, the main magnet 11 and the fixed magnet 26 also interact by the repulsive magnetic force of the same magnetic poles. Since the fixed magnet 26 is fixed relative to the second fixed clamping plate 20... The second fixed clamp 20 is fixed relative to the first chain post 17, so it can descend by magnetic force, which facilitates the descent of the rotating drum 19 and further presses the walnut 33, making it stable during transmission and preventing it from deflecting arbitrarily. Since the splitting blade 12 is horizontally aligned with the laser cutting module 13, it ensures that the cut produced after the walnut 33 passes smoothly through the laser cutting module 13 remains flush with the blade of the splitting blade 12, thus facilitating the effective cutting of the splitting blade 12 into the cut to split the upper and lower shells. Furthermore, since the rotating drum 19 is connected to the rotating sleeve 22 through the elastic connector 21, when the upper part of the walnut shell is pushed upward by the splitting blade 12, the rotating drum 19 is subjected to an upward pushing force, which causes the elastic connector 21 to deform, preventing the rotating drum 19 from hindering the upward opening of the shell. At the same time, since the elastic connector 21 facilitates the movement of the rotating drum 19 relative to the first chain post 17, it is convenient to push open the rotating drum 19 when the walnut 33 needs to be flipped and its posture adjusted.

[0050] In some specific implementation plans, such as Figure 8As shown, each set of movable connectors includes a first horizontal shaft 34, a first U-shaped rotating component 36, and a first connecting rotating block 37. The first U-shaped rotating component 36 is fixedly connected to one end of the first chain post 17, and the first connecting rotating block 37 is fixedly connected to the other end of the first chain post 17. The first U-shaped rotating component 36 corresponding to each first chain post 17 cooperates with the first connecting rotating block 37 corresponding to the adjacent first chain post 17. The first connecting rotating block 37 is located inside the first U-shaped rotating component 36, and the first horizontal shaft 34 passes through the cooperating first U-shaped rotating component 36 and the first connecting rotating block 37. The first U-shaped rotating component 36 and the first connecting rotating block 37 can rotate relative to the first horizontal shaft 34. A limiting block 35 is fixedly connected to the shaft 34. There are two limiting blocks 35, which are distributed on both sides of the first U-shaped rotating part 36. The upper wheel body 6 includes two discs, and the centers of the two discs are fixedly connected together by a rod. There is enough distance between the discs for the distributed rotating drums 19 to pass through. Both discs have multiple first grooves 38 that cooperate with the first horizontal shaft 34 in a circumferential manner. During the rotation of the upper wheel body 6, the distributed first horizontal shafts 34 cooperate with the first grooves 38 and pass through one by one, so that the entire upper chain 7 can move effectively. The adjacent first chain posts 17 can also rotate relative to each other through the first U-shaped rotating part 36 and the first connecting rotating block 37 cooperating with the first horizontal shaft 34.

[0051] In some specific implementation plans, such as Figure 9 As shown, the lower conveyor wheel chain assembly includes a lower wheel body 5 and a lower chain 8. There are two lower wheel bodies 5, which are rotatably connected to the inner bottom sides of the frame body 1 via shafts. The lower chain 8 is connected between the two lower wheel bodies 5 and cooperates with the upper chain 7.

[0052] The lower chain 8 consists of two parallel chains, which are distributed on both sides of the lower wheel body 5. A conveying connector that cooperates with the lower wheel body 5 is provided between the two lower chains 8.

[0053] In some specific implementations, both lower chains 8 include a pulley 39 and a second chain post 40; multiple pulleys 39 and second chain posts 40 are provided, and each pulley 39 is rotatably connected to a corresponding second chain post 40, with the pulley 39 rotating around the second chain post 40; a second U-shaped rotating component 41 is fixedly connected to one end of each second chain post 40, and a second connecting rotating block 30 is fixedly connected to the other end, and the second U-shaped rotating component 41 corresponding to each second chain post 40 cooperates with the second connecting rotating block 30 corresponding to the adjacent second chain post 40, with the second connecting rotating block 30 located inside the second U-shaped rotating component 41. The conveying connector includes a second horizontal shaft 42, and multiple second horizontal shafts 42 are provided. Each group of cooperating second U-shaped rotating components 41 and second connecting rotating blocks 30 is rotatably connected to one end of the corresponding second horizontal shaft 42, specifically, the ends of the second horizontal shaft 42 are sequentially... The second U-shaped rotating component 41 and the second connecting rotating block 30 are connected together and their ends are limited by limiting components to prevent them from detaching. Both the second U-shaped rotating component 41 and the second connecting rotating block 30 can rotate around the second horizontal axis 42. The lower wheel body 5 has multiple second grooves that cooperate with the second horizontal axis 42 around its circumferential edge. Each second horizontal axis 42 has a limiting clamp 43 fixedly connected to both sides of its middle position. The limiting clamp 43 cooperates with both sides of the lower wheel body 5 and clamps the two sides of the lower wheel body 5 to achieve positioning, ensuring that the two lower chains 8 are stably distributed on both sides of the lower wheel body 5. At the same time, the second horizontal axis 42 cooperates with the second groove on the lower wheel body 5, which facilitates the movement of the two lower chains 8 by rotating the lower wheel body 5. The arrangement of the two lower chains 8 facilitates the support of the walnut fruit 33. Since the rotating wheels 39 exist in pairs, it is convenient for the walnut fruit 33 to be centered.

[0054] It should be noted that both the rotating wheel 39 and the rotating drum 19 are cylindrical bodies that are thick at both ends and thin in the middle, with a rounded concave part in the middle, which makes it easy to fit the shell of the walnut 33. It also makes it easy for the walnut 33 to be centered between a set of rotating wheels 39 and the corresponding rotating drum 19, so that it can be clamped and thus transported.

[0055] In some specific implementation plans, such as Figure 6 As shown, the synchronous transmission mechanism includes a double-sided toothed synchronous belt 28 and transition guide pulleys 27. The main shaft of the servo motor 3 is coaxially connected to the lower wheel body 5. Two sets of transition guide pulleys 27 are provided and are rotatably connected to the two sides inside the frame body 1 through rotating shafts. The double-sided toothed synchronous belt 28 is connected between the two sets of transition guide pulleys 27. Each lower wheel body 5 and upper wheel body 6 is coaxially connected to a synchronous pulley 29, and each synchronous pulley 29 is connected to the double-sided toothed synchronous belt 28. It should be noted that the double-sided toothed synchronous belt 28 has tooth grooves distributed on both sides, which facilitates winding with synchronous pulleys 29 at different positions and drives the lower wheel body 5 and the upper wheel body 6 to move synchronously in opposite directions.

[0056] In some specific embodiments, the shell-breaking machine also includes a posture adjustment mechanism, which includes a lever 32. The lever 32 is fixedly connected inside the main frame 1 and is positioned on one side of the lower chain 8, near the feed hopper 2. When the walnuts 33 are aligned with the feed hopper 2... Figure 7 When the walnut 33 is positioned between the two lower chains 8 in the direction shown in the diagram (a), in order to make the cut as long as possible to facilitate subsequent shell opening, the walnut 33 needs to be deflected. Therefore, the walnut 33 is placed in the direction of a. As the lower chain 8 passes the lever 32, the lever 32 obstructs one end of the walnut 33. Since the other end of the walnut 33 continues to move with the lower chain 8, the walnut 33 will be deflected, thereby adjusting its position to the direction of b, so that the length direction of the walnut 33 coincides with the direction of movement.

[0057] It can also be equipped with a magnetic wheel 14, a drive motor 15, and an image recognition camera 31. The drive motor 15 is fixedly connected to the inside of the frame body 1 via a mounting base and is located below the lower chain 8, close to the laser cutting module 13. The magnetic wheel 14 is fixedly connected to the main shaft end of the drive motor 15. Each rotating wheel 39 is a driven magnetic wheel that cooperates with the magnetic wheel 14. The magnetic wheel 14 is composed of multiple magnets, which are connected together by axles to form a ring wheel. The driven magnetic wheel is composed of multiple magnets distributed on a columnar body, and the magnetic poles are distributed on the magnetic wheel 14. Corresponding to the magnetic pole distribution, the image recognition camera 31 is set above the magnetic wheel 14. The image recognition camera 31 is fixed relative to the frame body 1 and is obliquely facing the upper part of the lower chain 8. The image recognition camera 31 captures the walnuts 33 that are conveyed by the lower chain 8. The posture of the walnuts 33 can be determined by the rotating image. In combination with whether it is convenient to cut and crack the shell later, the drive motor 15 can be controlled to drive the magnetic wheel 14 to rotate, so that the magnetic wheel 14 drives the rotating wheel 39, which is a driven magnetic wheel, to rotate through magnetic force, thereby causing the walnuts 33 placed on the rotating wheel 39 to deflect and adjust their posture.

[0058] It should be noted that a controller 4 is also installed on the outer wall of the main frame 1, which controls the operating parameters of the drive motor 15, the servo motor 3 and the laser cutting module 13.

[0059] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios:

[0060] First, the pre-sized walnuts 33 are fed into the shell-crushing machine through the feed hopper 2. The servo motor 3 drives the distributed upper wheel 6 and lower wheel 5 to rotate synchronously in opposite directions through the synchronous pulley 29 and the double-sided toothed synchronous belt 28. In this way, the corresponding upper chain 7 and lower chain 8 continuously cycle. The lower chain 8 is provided with two chains, which support the walnuts 33 by the paired rotating wheels 39. At the same time, the upper chain 7 presses down on the walnuts 33 by the distributed rotating drums 19, thereby realizing the clamping and conveying of the walnuts 33.

[0061] When the walnut fruit 33 passes the location of the laser cutting module 13, the laser cutting module 13 starts to emit laser to cut the two sides of the walnut fruit 33, so that the walnut fruit 33 has cuts on both sides. Then the walnut fruit 33 continues to be transported by being held by the upper chain 7 and the lower chain 8.

[0062] When the walnut 33 enters the area between the laser cutting module 13 and the splitting blade 12, the rotating drum 19 at the corresponding position on the upper chain 7 also enters the area above the laser cutting module 13 and the splitting blade 12, and is also below the horizontally distributed main magnet 11. Thus, the magnetic slider 24 corresponding to each rotating drum 19 entering this area slides down under the repulsive magnetic force of the same magnetic poles, overcoming the elastic force of the support spring 25. This causes the connected push rod 16 to descend, passing through the bottom of the first fixed clamping plate 18. The position of the first fixed clamping plate 18 corresponds to the tail of the advancing walnut 33. Thus, the push rod 16 covers the tail of the walnut 33, facilitating the pushing of the walnut 33 through the position of the splitting blade 12, thus facilitating shell breaking. Simultaneously, the main magnet 11 and the fixed magnet 26 also interact by the repulsive magnetic force of the same magnetic poles. Since the fixed magnet 26 is positioned relative to the second fixed clamping plate 20... The second fixed clamping plate 20 is fixed relative to the first chain post 17, so it can be lowered by magnetic force, which facilitates the descent of the rotating drum 19 and further presses the walnut fruit 33, making it stable during the transmission process and preventing it from deflecting randomly. Since the splitting blade 12 is horizontally aligned with the laser cutting module 13, it can be ensured that the cut produced after the walnut fruit 33 passes smoothly through the laser cutting module 13 remains flush with the blade of the splitting blade 12. As the walnut fruit 33 moves relative to the splitting blade 12, it is easy for the splitting blade 12 to effectively cut into the cut. The splitting blade 12 is thinner at the front and thicker at the back, which makes it easy for the upper and lower shells of the walnut fruit 33 to be split. Since the rotating drum 19 is connected to the rotating sleeve 22 through the elastic connector 21, when the upper part of the walnut shell is pushed upward by the splitting blade 12, the rotating drum 19 is subjected to an upward pushing force, which causes the elastic connector 21 to deform, preventing the rotating drum 19 from hindering the shell from being pushed upward.

[0063] Finally, the shelled walnuts 33 are discharged through the discharge hopper 9, which facilitates the efficiency of direct separation of the kernel from the shell and reduces damage to the kernel.

[0064] The foregoing has described several embodiments of the present invention in detail, but these embodiments are not limited thereto and should not be considered as limiting the scope of the invention. All equivalent variations and improvements made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A low-damage shelling machine for Carya illinoinensis, comprising a rack body (1), a feeding bin (2) is fixedly arranged on one side of the top of the rack body (1), and a discharging bin (9) is fixedly arranged on the other side, characterized in that, Also include: Material conveying mechanism, the material conveying mechanism includes upper conveying wheel chain group, lower conveying wheel chain group and servo motor (3), the upper conveying wheel chain group and lower conveying wheel chain group cooperate with each other, and are installed in the inside of rack main body (1), the main shaft end of servo motor (3) is provided with synchronous transmission mechanism, and the upper conveying wheel chain group and lower conveying wheel chain group are connected with synchronous transmission mechanism cooperation, Posture adjusting mechanism, the posture adjusting mechanism is cooperatively arranged at one end of the lower conveying wheel chain group, Shell breaking mechanism, the shell breaking mechanism includes laser cutting module (13), split knife (12) and magnetic propulsion mechanism, the laser cutting module (13) is provided with two groups, and is distributed in pairs on both sides of the lower conveying wheel chain group, the split knife (12) is provided with two, and is distributed in pairs on both sides of the lower conveying wheel chain group, the magnetic propulsion mechanism is arranged above the area between split knife (12) and laser cutting module (13), and the magnetic propulsion mechanism is matched with the upper conveying wheel chain group, The upper conveying wheel chain group includes upper wheel body (6) and upper chain (7), the upper wheel body (6) is provided with two groups, and is rotatably connected to the two sides of the top of the rack main body (1) respectively, the upper chain (7) is cooperatively arranged between the two groups of the upper wheel body (6), the upper chain (7) includes first chain column (17), first fixed clamping plate (18), second fixed clamping plate (20) and rotating drum (19), the first chain column (17) is provided with a plurality of, and the adjacent first chain column (17) is connected with movable connecting piece, the first fixed clamping plate (18) and the second fixed clamping plate (20) are all provided with a plurality of, one end of each first chain column (17) is fixedly connected with the first fixed clamping plate (18) correspondingly, the other end is fixedly connected with the second fixed clamping plate (20) correspondingly, the rotating drum (19) is provided with a plurality of, and each rotating drum (19) is arranged between the corresponding first fixed clamping plate (18) and second fixed clamping plate (20), each first chain column (17) is rotatably connected with rotating sleeve (22), a plurality of elastic connecting bodies (21) are connected with the outer wall of rotating sleeve (22) circumferentially, and rotating sleeve (22) is connected with the corresponding rotating drum (19) through elastic connecting body (21), the first fixed clamping plate (18) is provided with a limiting top piece matched with the magnetic propulsion mechanism, The limiting top piece includes U-shaped connecting sliding groove (23), U-shaped sliding piece and supporting spring (25), the U-shaped connecting sliding groove (23) is longitudinally provided on the first fixed clamping plate (18), the U-shaped sliding piece is slidably inserted into the U-shaped connecting sliding groove (23), the U-shaped sliding piece includes magnet sliding block (24) and top rod (16), the magnet sliding block (24) is slidably arranged on the inner top of the U-shaped connecting sliding groove (23), the top rod (16) is provided with two and is fixedly connected at both ends of the magnet sliding block (24), and the top rod (16) is slidably inserted into the U-shaped connecting sliding groove (23), the magnet sliding block (24) and the U-shaped connecting sliding groove (23) are further connected by supporting spring (25).

2. The low-damage shelling machine for Carya illinoensis according to claim 1, characterized in that, The magnetic pushing mechanism comprises a fixed horizontal plate (10) and main magnets (11), the fixed horizontal plate (10) is fixedly connected inside the rack main body (1), and the fixed horizontal plate (10) is above the area between the laser cutting module (13) and the splitting knife (12); the main magnets (11) are provided in multiple pieces and are fixedly distributed horizontally at the bottom of the fixed horizontal plate (10); the main magnets (11) are the same as the opposite end magnetic poles of the magnet sliding block (24); the second fixed clamping plate (20) is fixedly installed with fixed magnets (26) on the side close to the main magnets (11), and the fixed magnets (26) are the same as the opposite end magnetic poles of the main magnets (11).

3. The low-damage shelling machine of claim 1, wherein Each set of the movable connecting pieces comprises a first horizontal shaft (34), a first U-shaped rotating piece (36) and a first connecting rotating block (37), the first U-shaped rotating piece (36) is fixedly connected to one end of the first chain column (17), the first connecting rotating block (37) is fixedly connected to the other end of the first chain column (17), the first U-shaped rotating piece (36) corresponding to each first chain column (17) is matched with the first connecting rotating block (37) corresponding to the adjacent first chain column (17), and the first horizontal shaft (34) penetrates the matched first U-shaped rotating piece (36) and the first connecting rotating block (37), the first horizontal shaft (34) is fixedly connected with a limiting block (35), the limiting block (35) is provided in two pieces and is distributed on the two sides of the first U-shaped rotating piece (36), the upper wheel body (6) comprises two disc wheels which are fixedly connected together, and a plurality of first grooves (38) matched with the first horizontal shaft (34) are circumferentially distributed on the two disc wheels.

4. The low-damage shelling machine of claim 1, wherein The lower conveying wheel chain set comprises a lower wheel body (5) and a lower chain (8), the lower wheel body (5) is provided in two pieces and is rotatably connected to the inner bottom of the rack main body (1) on both sides, the lower chain (8) is connected between the two lower wheel bodies (5), and the lower chain (8) is matched with the upper chain (7).

5. The low-damage shelling machine for Carya illinoensis kernels according to claim 4, characterized in that, The lower chain (8) is provided in two pieces, the two lower chains (8) are parallel to each other and are distributed on the two sides of the lower wheel body (5), and a conveying connecting piece matched with the lower wheel body (5) is arranged between the two lower chains (8).

6. The low-damage shelling machine of claim 5, wherein, Two said lower chain (8) includes a runner (39) and a second chain column (40); the runner (39) and second chain column (40) are provided with a plurality of, and each said runner (39) is rotatably connected on the corresponding second chain column (40); one end of each said second chain column (40) is fixedly connected with a second U-shaped rotating part (41), the other end is fixedly connected with a second connecting rotating block (30), and the corresponding second U-shaped rotating part (41) of each said second chain column (40) is matched with the corresponding second connecting rotating block (30) of the adjacent second chain column (40), the conveying connecting piece includes a second horizontal shaft (42), the second horizontal shaft (42) is provided with a plurality of, each set of matched second U-shaped rotating part (41) and second connecting rotating block (30) are rotatably connected with the corresponding second horizontal shaft (42) one end, the edge of the lower wheel body (5) is circumferentially provided with a plurality of second grooves matched with the second horizontal shaft (42), and the two sides of the middle position of each said second horizontal shaft (42) are fixedly connected with a limiting clamp block (43), and the limiting clamp block (43) is matched with the two sides of the lower wheel body (5).

7. The low-damage shelling machine of claim 4, wherein The synchronous transmission mechanism includes double-sided tooth synchronous belt (28) and transition guide roller (27), the main shaft of the servo motor (3) is coaxially connected with the lower wheel body (5), the transition guide roller (27) is provided with two groups, and is rotatably connected on the inside of the rack main body (1) two sides, the double-sided tooth synchronous belt (28) is connected between the two groups of transition guide roller (27), each said lower wheel body (5) and upper wheel body (6) are coaxially connected with a synchronous wheel (29), and each said synchronous wheel (29) is connected with double-sided tooth synchronous belt (28).

8. The low-damage shelling machine of claim 4, wherein, The posture adjusting mechanism includes a lever (32), the lever (32) is fixedly connected in the inside of the rack main body (1), and is matched with one side of the lower chain (8).

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