Laser opening and shell breaking pecan all-in-one machine

By designing laser openings and adaptive extrusion, the problem of low mechanization of pecan fruit industry in my country has been solved, and the efficiency and damage-free shell breakage of pecan fruit is achieved, and the pecan fruit is adapted to pecan fruit of different sizes is achieved.

CN119632262AActive Publication Date: 2025-03-18ANHUI AGRICULTURAL UNIVERSITY
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Patent Information

Application Number
CN202411846020.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-03-18
Estimated Expiration
2044-12-16

AI Technical Summary

Technical Problem

my country's pecan industry has a low degree of mechanization, resulting in the import of nearly 50,000 tons of nuts every year, and the lack of effective shell breaking equipment.

Method used

A laser opening shell-breaking pecan integrated machine is designed, using laser opening device and adaptive extrusion device to cut the opening through laser and adjust the extrusion gap to achieve efficient shell-breaking of pecan.

Benefits of technology

The equipment can break the shell efficiently and without damage, protect the kernel from being crushed, adapt to pecans of different sizes, and improve the convenience and versatility of the equipment.

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Abstract

The invention discloses a pecan opening and shell breaking all-in-one machine through laser. The pecan opening and shell breaking all-in-one machine comprises a rack, a laser opening device, a feeding device, a conveying device and a shell breaking device. Under the action of gravity, the pecans conveyed to the topmost end of the feeding conveying belt slide down and enter the conveying conveying belt, and curved blocking pieces are arranged on the two sides of the starting end of the conveying conveying belt to prevent the pecans from falling off; the pecans are conveyed to the position below a laser spray head through a conveying belt, extrusion is conducted in the direction perpendicular to the lines of a laser kerf opening, expected cracks are generated, and nuts are prevented from being crushed by subsequent extrusion shell breaking; a belt transmission gear-shaped disc is arranged on the right side of the shell breaking device to enable the shell breaking component to rotate anticlockwise, a self-adaptive gear-shaped disc is arranged on the left side, springs are assembled on the inner side, and a gap between two extrusion discs is adjusted through stretching and retracting of large and small springs below a self-adaptive extrusion disc shaft, so that self-adaptive adjustment is achieved; finally, the materials move and fall into a collecting box under the action of a conveying belt; and through opposite extrusion shell breaking, the use effect is excellent, and the applicability is high.
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Description

Technical Field

[0001] The invention relates to a primary processing machine for agricultural products, in particular to a laser opening and shelling pecan all-in-one machine. Background Art

[0002] Pecans, also known as thin-shell pecans, long pecans, American pecans, etc., are delicious, sweet, nutritious, large, thin-shelled, and high in kernel yield. More than 90% of the kernels are unsaturated fatty acids, which are better than olive oil and have the effect of reducing the incidence of coronary heart disease. Pecans are rich in nutrients, and the kernels are also rich in protein, amino acids, vitamins, etc., with high nutritional value. Pecans, also known as "longevity fruits", can nourish the kidneys and brain, replenish the middle qi, and have the effects of lowering cholesterol, nourishing the brain, and beautifying. In recent years, pecan cultivation has become a successful model of "one acre of mountain, ten thousand yuan" promoted in many places. One planting can bring long-term benefits, and the planting area is constantly expanding, which can effectively drive farmers' income. However, pecans are mechanized in their place of origin-the United States. my country's mechanization level is very low, and my country is a major consumer of pecans. Nearly 50,000 tons of nuts need to be imported using foreign exchange each year, which forces our pecan industry to achieve mechanization. Mechanization has become a bottleneck problem in the development of the pecan industry. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art, and a laser opening and shelling pecan machine is proposed. It adopts laser opening and is equipped with a laser frequency regulator, which can adjust different laser frequencies to open the pecans. The extrusion device adopts a rough disc mechanism, which drives the extrusion disc to rotate through the rotation of the motor, and the extrusion disc on the other side adopts spring self-adaptation. When the pecans pass by, the rotating extrusion disc rotates and presses the pecans to the extrusion disc on the other side. The extrusion disc on the other side is connected to the spring frame through a spring, and the lower groove is also equipped with a spring. When the pecans are squeezed, the extrusion spacing can be automatically adjusted according to the size of the pecans to achieve a self-adaptive effect, and the pecans that have been opened can be shelled.

[0004] To achieve the purpose of the present invention, the technical solution adopted is: A laser opening and shelling machine for pecans comprises a frame, a laser workbench and a collecting box, and also comprises a laser opening device, a feeding device, a conveying device and a shelling device; the feeding device is installed and connected with the conveying device, the upper part of the conveying device is connected with the frame, the laser opening device is fixedly installed on the frame above the conveying device, and the shelling device is installed and connected at the end of the conveying device.

[0005] As a preferred technical solution, a pecan conveying belt includes a pecan elastic groove body, a laser absorbing ultra-black coating belt is fixedly installed on the inner wall surface of the groove of the pecan elastic groove body, a diffuse scattering straight prism grating is horizontally installed on the inner side of the laser absorbing ultra-black coating belt, and a total reflection oblique prism grating is vertically installed. Laser absorbing ultra-black water material is filled between the diffuse scattering straight prism grating and the total reflection oblique prism grating, diffuse scattering prism grating fragments are deposited on the bottom of the laser absorbing ultra-black water material, and the upper surface of the laser absorbing ultra-black water material is covered with a total transmission protection prism grating.

[0006] As a preferred technical solution, the laser absorbing ultra-black water material includes the following components in weight percentage: 10-20% solid absorbent, 30-50% liquid absorbent, and the balance is alcohol with an ethanol concentration of 30-50%. The solid absorbent is at least one of carbon black powder, graphite powder, ultra-black ceramic powder, and silicon carbonitride powder. The liquid absorbent is at least one of ink and water-based black paint.

[0007] As a preferred technical solution, the laser opening device includes a laser frequency modulator, a carbon dioxide laser tube, and a carbon dioxide laser nozzle. The carbon dioxide laser nozzle is fixedly installed on a frame, and the laser frequency modulator and the carbon dioxide laser tube are fixedly installed on a laser workbench. The conveyor belt transports the pecans to the bottom of the carbon dioxide laser. The laser nozzle emits a laser to cut a slit in the long diameter direction of the pecans to prevent subsequent squeezing and shelling to damage the kernels. When the pecans pass by, they are cut by the laser so that they can be squeezed along the laser cut lines when they move to the back to break the shell.

[0008] As a preferred technical solution, the feeding device includes a feeding conveyor belt baffle, a feeding conveyor belt, and a feeding funnel. The feeding funnel is installed above the feeding conveyor belt. The feeding conveyor belt baffle is installed on the feeding conveyor belt. After pouring the pecans, the pecans can slide onto the feeding conveyor belt through two staggered baffles. The feeding conveyor belt is connected to the conveying device.

[0009] As a preferred technical solution, one side of the feed conveyor belt is installed and connected to the feed funnel, and the other side is installed and connected to the conveyor belt of the conveying device. The feed conveyor belt is directly connected to the baffle located on the conveyor belt; the conveying device includes a baffle, a conveyor belt, and a conveyor belt of pecans. The conveyor belt of pecans is installed and connected to the conveyor belt, and the baffles are fixedly installed on both sides of the conveyor belt of pecans on the conveyor belt and are located below the feed device.

[0010] As a preferred technical solution, the shell breaking device includes a large spring, a small spring, a spring frame, an adaptive extrusion plate, a base, a spring groove, a large pulley, a V-belt, a rotating extrusion plate, a small pulley, and an electric motor. The adaptive extrusion plate and the rotating extrusion plate are both mounted on two rotating shafts of different sizes, and the rotating shafts are respectively distributed on both sides of the base.

[0011] As a preferred technical solution, the gap between the adaptive extrusion disk and the rotating extrusion disk is adjusted by adjusting the expansion and contraction of the large springs and the small springs on both sides of the adaptive extrusion disk, so as to realize the adaptive adjustment of the adaptive extrusion disk and the rotating extrusion disk. A motor is fixedly installed on one side of the base, and a small pulley is fixedly sleeved on the output end of the motor. A large pulley is sleeved on the top of the rotating extrusion disk. The shelling movement is completed through the interaction between the two extrusion disks on the pecans.

[0012] As a preferred technical solution, the large pulley and the small pulley are connected by a V-belt drive, and the motor drives the rotating extrusion disk to rotate through the large pulley and the small pulley at a rotational angular velocity ratio of 3:2. The adaptive extrusion disk and the rotating extrusion disk are installed with a rough protrusion structure that rotates evenly distributed.

[0013] As a preferred technical solution, the adaptive extrusion disk is installed and connected to the spring frame, the spring frame is fixedly installed above the base, the spring groove is opened on the base, a large spring is installed on the spring frame, a small spring is installed in the spring groove, and the adaptive extrusion disk is installed and connected to the spring frame through the large spring.

[0014] The beneficial effects of the present invention are as follows: 1. The laser opening and shelling machine for pecans proposed by the present invention has baffles with uniform intervals distributed on the feeding conveyor belt, so that the pecans are arranged in order and enter the conveyor belt during feeding, and then the pecans are fed into the laser opening device in order through the belt on the conveyor belt. When the pecans pass through the laser nozzle, they are opened by the laser slit, so that when they move to the back to break the shell, the rotating extrusion disk in the shell breaking device squeezes in the vertical direction along the lines of the laser slit opening to produce expected cracks, thereby protecting the kernels from being crushed; 2. The present invention proposes a laser opening and shelling pecan machine, in which a rotating extrusion disk and an adaptive extrusion disk are provided. The two extrusion disks are mounted on two different rotating shafts, and the rotating shafts are respectively distributed on both sides of the base. Since pecans are of different sizes, different extrusion forces are generated when they are squeezed. The gap between the two extrusion disks is adjusted by the expansion and contraction of the spring under the adaptive extrusion disk shaft to achieve adaptive adjustment, so as to prevent large pecans from being crushed due to excessive extrusion pressure, thereby improving the convenience, versatility and practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the axial structure of a laser opening and shelling pecan all-in-one machine proposed by the present invention; Figure 2 This is a schematic diagram of the laser opening axial side structure of a laser opening pecan shelling machine proposed by the present invention; Figure 3This is a schematic diagram of the structure of a feeding device of a laser opening and shelling pecan all-in-one machine proposed by the present invention; Figure 4 This is a schematic diagram of the structure of the conveying components of the laser opening and shelling pecan all-in-one machine proposed by the present invention; Figure 5 This is a schematic diagram of the structure of an extrusion device of a laser opening and shelling pecan all-in-one machine proposed by the present invention; Figure 6 This is a schematic diagram of the structure of a pecan conveying belt of a laser opening and shelling pecan integrated machine proposed by the present invention; Legend: 1. Frame; 2. Laser opening parts; 3. Feeding parts; 4. Conveying parts; 5. Shell breaking parts; 21. Laser frequency modulator; 22. Laser tube; 23. Laser nozzle; 31. Feed conveyor belt baffle; 32. Feed conveyor belt; 33. Feed funnel; 41. baffle; 42. conveyor belt; 43. pecan belt; 431, elastic groove body of Kaguo; 432, laser absorption ultra-black coating belt; 433, diffuse scattering straight prism grating; 434, total reflection oblique prism grating; 435, laser absorption ultra-black water material; 436, diffuse scattering prism grating fragments; 437, full transmission protection prism grating; 51. Large spring; 52. Small spring; 53. Spring frame; 54. Adaptive extrusion plate; 55. Base; 56. Spring groove; 57. Large pulley; 58. V-belt; 59. Rotating extrusion plate; 510. Small pulley; 511. Motor. DETAILED DESCRIPTION

[0016] The present invention will be further described and illustrated below in conjunction with specific embodiments and the accompanying drawings.

[0017] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Embodiment 1:

[0019] See also Figure 1 In an embodiment of the present invention, a laser opening and shelling machine for pecans includes a frame 1, a laser workbench and a collecting box, and also includes a laser opening device 2, a feeding device 3, a conveying device 4, and a shelling device 5; the feeding device 3 is installed and connected with the conveying device 4, and the frame 1 is connected above the conveying device 4, and the laser opening device 2 is fixedly installed on the frame 1 above the conveying device 4, and the shelling device 5 is installed at the end of the conveying device 4.

[0020] See also Figure 2 In an embodiment of the present invention, a laser opening and shelling machine for pecans is provided. The laser opening device 2 includes a laser frequency modulator 21, a carbon dioxide laser tube 22, and a carbon dioxide laser nozzle 23. The carbon dioxide laser nozzle 23 is fixedly mounted on a frame 1, and the laser frequency modulator 21 and the carbon dioxide laser tube 22 are fixedly mounted on a laser workbench.

[0021] See also Figure 3 In an embodiment of the present invention, a laser opening and shelling pecan machine is provided, wherein a feeding device 3 comprises a feeding conveyor belt baffle 31, a feeding conveyor belt 32, and a feeding funnel 33. The feeding funnel 33 is installed above the feeding conveyor belt 32, and the feeding conveyor belt baffle 31 is installed on the feeding conveyor belt 32.

[0022] See also Figure 3 , 4 In an embodiment of the present invention, a laser opening and shelling pecan machine is provided, one side of a feed conveyor belt 32 is connected to a feed hopper 33, and the other side is connected to a conveyor belt 42 of a conveying device 4, and the feed conveyor belt 32 is directly connected to a baffle 41 on the conveyor belt 42; the conveying device 4 includes a baffle 41, a conveyor belt 42, and a pecan belt 43, the pecan belt 43 is connected to the conveyor belt 42, and the baffle 41 is fixedly mounted on both sides of the pecan belt 43 on the conveyor belt 42 and is located below the feed device 3.

[0023] See also Figure 5 In an embodiment of the present invention, a laser opening shell-breaking pecan machine is provided, and the shell-breaking device 5 includes a large spring 51, a small spring 52, a spring frame 53, an adaptive extrusion disk 54, a base 55, a spring groove 56, a large pulley 57, a V-belt 58, a rotating extrusion disk 59, a small pulley 510, and a motor 511. The adaptive extrusion disk 54 and the rotating extrusion disk 59 are both mounted on two rotating shafts of different sizes, and the rotating shafts are respectively distributed on both sides of the base 55.

[0024] See also Figure 5In an embodiment of the present invention, a laser opening and shelling pecan all-in-one machine is provided. The gap between the adaptive extrusion disk 54 and the rotating extrusion disk 59 is adjusted by adjusting the expansion and contraction of the large springs 51 and the small springs 52 on both sides of the adaptive extrusion disk 54, so as to realize the adaptive adjustment of the adaptive extrusion disk 54 and the rotating extrusion disk 59. A motor 511 is fixedly mounted on one side of the base 55, and a small pulley 510 is fixedly sleeved on the output end of the motor 511. A large pulley 57 is sleeved on the rotating extrusion disk 59.

[0025] See also Figure 5 In an embodiment of the present invention, a laser opening and shelling pecan machine is provided, wherein a large pulley 57 and a small pulley 510 are connected through a V-belt 58, and a motor 511 drives a rotating extrusion disk 59 to rotate through the large pulley 57 and the small pulley 510 at a rotation angular velocity ratio of 3:2, and the adaptive extrusion disk 54 and the rotating extrusion disk 59 are provided with a uniformly distributed rotating rough protrusion structure.

[0026] See also Figure 5 In the embodiment of the present invention, a laser opening shell cracking pecan all-in-one machine is provided, an adaptive squeezing disc 54 is installed and connected with a spring frame 53, the spring frame 53 is fixedly installed above a base 55, a spring groove 56 is provided on the base 55, a large spring 51 is installed on the spring frame 53, a small spring 52 is installed in the spring groove 56, and the adaptive squeezing disc 54 is installed and connected with the spring frame 53 through the large spring 51.

[0027] See also Figure 6 In an embodiment of the present invention, a laser opening and shelling pecan machine is provided, wherein a pecan conveying belt 43 comprises a card fruit elastic groove body 431, a laser absorption ultra-black coating belt 432 is fixedly installed on the inner wall surface of the groove of the card fruit elastic groove body 431, a diffuse scattering straight prism grating 433 is horizontally installed on the inner side of the laser absorption ultra-black coating belt 432, and a total reflection oblique prism grating 434 is vertically installed, a laser absorption ultra-black water material 435 is filled between the diffuse scattering straight prism grating 433 and the total reflection oblique prism grating 434, a diffuse scattering prism grating fragment 436 is deposited on the bottom of the laser absorption ultra-black water material 435, and a total transmission protection prism grating 437 is covered on the upper surface of the laser absorption ultra-black water material 435; the laser absorption ultra-black water material 435 comprises the following components in weight percentage: 20% solid absorbent, 50% liquid absorbent, and the remainder is ethanol with a concentration of 30 % alcohol, the solid absorbent is at least one of carbon black powder, graphite powder, super black ceramic powder, and silicon carbonitride powder, and the liquid absorbent is at least one of ink and water-based black paint. Embodiment 2:

[0028] The difference between this embodiment and embodiment 1 is that: See also Figure 6In an embodiment of the present invention, a laser opening and shelling pecan machine is provided, and the laser absorbing ultra-black water material 435 includes the following components in weight percentage: 10% solid absorbent, 30% liquid absorbent, and the remainder is alcohol with an ethanol concentration of 50%, the solid absorbent is at least one of carbon black powder, graphite powder, ultra-black ceramic powder, and silicon carbonitride powder, and the liquid absorbent is at least one of ink and water-based black paint.

[0029] When working, the pecans are poured into the feeding funnel 33 in the feeding device 3, and the pecans in the feeding funnel 33 slide onto the feeding conveyor belt 32 through two staggered baffles. The feeding device motor on the feeding device 3 drives the feeding conveyor belt 32 to rotate, and then the pecans are evenly arranged and sequenced through the feeding conveyor belt baffle 31 on the feeding conveyor belt 32, and slide onto the conveying device 4; The pecans falling on the conveying device 4 are accurately conveyed to the conveying conveyor belt 42 through the baffle 41, and further fall onto the conveying belt 43 for conveying pecans, and are conveyed forward under the action of the conveying motor at the bottom of the conveying device 4; The pecans passing through the carbon dioxide laser nozzle 23 are directly hit by the carbon dioxide laser tube 22 under the action of the carbon dioxide laser tube 22, so as to break the shell of the pecans, and the parameters of the carbon dioxide laser emitted from the carbon dioxide laser tube 22 are adjusted by the laser frequency modulator 21; The shelled pecans continue to be transported between the adjustable adaptive squeezing disk 54 and the rotating squeezing disk 59 under the action of the pecan conveying belt 43. The gap between the adaptive squeezing disk 54 and the rotating squeezing disk 59 is adjusted by adjusting the expansion and contraction of the large springs 51 and the small springs 52 on both sides of the adaptive squeezing disk 54. The motor 511 drives the rotating squeezing disk 59 to rotate at a rotation angular velocity ratio of 3:2 through the large pulley 57 and the small pulley 510. The adaptive squeezing disk 54 and the rotating squeezing disk 59 are adjusted to clamp the pecans on the pecan conveying belt 43 and move forward. The pecans are completely shelled and taken out by adjusting the squeezing effect of the adaptive squeezing disk 54 and the rotating squeezing disk 59. Finally, the pecans are moved and dropped into the collection box under the action of the pecan conveying belt 43. When the laser is directly irradiated on the gap area between the pecans, the laser is directly irradiated on the elastic groove body 431 of the pecan conveying belt 43, and the laser first passes through the transmission protection prism grating 437 and enters the laser absorption super black water material 435. The laser absorption super black water material 435 first roughly absorbs the laser, and part of the laser is directly irradiated on the diffuse scattering straight prism grating 433 and the diffuse scattering prism grating fragments 436 at the bottom of the laser absorption super black water material 435 for diffuse scattering. The diffusely scattered laser The laser is irradiated on the total reflection oblique prism grating 434 on both sides of the laser absorption ultra-black water material 435, and the total reflection oblique prism grating 434 again reflects the laser into the laser absorption ultra-black water material 435 for re-absorption, and the laser leaked from the diffuse scattering straight prism grating 433, the total reflection oblique prism grating 434, the laser absorption ultra-black water material 435 and the diffuse scattering prism grating fragments 436 will be completely absorbed by the laser absorption ultra-black coating belt 432, thereby preventing the laser from causing high-energy damage to the pecan conveying belt 43.

[0030] In the present invention, a laser opening and shelling pecan machine of the present invention fixes the laser nozzle on the frame. When the pecan passes by, the laser cutting can make it squeeze along the laser cutting lines when it moves to the back to break the shell, thereby protecting the kernel from being crushed by the squeezing device and improving the working efficiency of the equipment; a rough protrusion structure that rotates evenly distributed is set on the rotating squeezing disk, so that the pecan will be fixed and controlled to move forward when it enters the shelling device. Because the pecans are of different sizes, the squeezing forces generated when they are squeezed are different. The gap between the two squeezing disks is adjusted by the expansion and contraction of the spring under the adaptive squeezing disk shaft to achieve adaptive adjustment, so as to prevent the large pecans from being crushed by excessive squeezing force. If the pecans are large, the spring will squeeze. If the pecans are small, the spring will rebound, thereby driving the squeezing disk to reciprocate, achieving the self-adaptation of the squeezing disk and improving the working efficiency of the equipment.

[0031] The technical solutions disclosed in the embodiments of the present invention are introduced in detail above. The principles and implementation methods of the embodiments of the present invention are explained in this article using specific embodiments. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A laser opening and shelling machine for pecans, comprising a frame (1), a laser workbench and a collecting box, characterized in that: It also includes a laser opening device (2), a feeding device (3), a conveying device (4), and a shell breaking device (5); the feeding device (3) is connected to the conveying device (4), the upper part of the conveying device (4) is connected to a frame (1), the laser opening device (2) is fixedly installed on the frame (1) above the conveying device (4), and the shell breaking device (5) is installed at the end of the conveying device (4); The conveying device (4) comprises a baffle (41), a conveying conveyor belt (42), and a pecan conveying belt (43); the pecan conveying belt (43) is mounted and connected to the conveying conveyor belt (42); the baffle (41) is fixedly mounted on both sides of the pecan conveying belt (43) on the conveying conveyor belt (42) and is located below the feeding device (3); The pecan conveying belt (43) comprises a pecan elastic groove body (431), a laser absorbing ultra-black coating belt (432) is fixedly mounted on the inner wall surface of the groove of the pecan elastic groove body (431), a diffuse scattering straight prism grating (433) is horizontally mounted on the inner side of the laser absorbing ultra-black coating belt (432), and a total reflection oblique prism grating (434) is vertically mounted, a laser absorbing ultra-black water material (435) is filled between the diffuse scattering straight prism grating (433) and the total reflection oblique prism grating (434), a diffuse scattering prism grating fragment (436) is deposited on the bottom of the laser absorbing ultra-black water material (435), and a total transmission protection prism grating (437) is covered on the upper surface of the laser absorbing ultra-black water material (435); The laser absorbing ultra-black water material (435) comprises the following components in weight percentage: 10-20% solid absorbent, 30-50% liquid absorbent, and the remainder is alcohol with an ethanol concentration of 30-50%, the solid absorbent is at least one of carbon black powder, graphite powder, ultra-black ceramic powder, and silicon carbonitride powder, and the liquid absorbent is at least one of ink and water-based black paint.

2. The laser opening and shelling machine for pecans according to claim 1, characterized in that: The laser opening device (2) comprises a laser frequency modulator (21), a carbon dioxide laser tube (22), and a carbon dioxide laser nozzle (23); the carbon dioxide laser nozzle (23) is fixedly mounted on the frame (1), and the laser frequency modulator (21) and the carbon dioxide laser tube (22) are fixedly mounted on a laser workbench.

3. The laser opening and shelling machine for pecans according to claim 1, characterized in that: The feeding device (3) comprises a feeding conveyor belt baffle (31), a feeding conveyor belt (32), and a feeding funnel (33); the feeding funnel (33) is installed above the feeding conveyor belt (32), and the feeding conveyor belt baffle (31) is installed on the feeding conveyor belt (32).

4. The laser opening and shelling machine for pecans according to claim 3, characterized in that: One side of the feed conveyor belt (32) is connected to the feed hopper (33), and the other side is connected to the conveyor belt (42) of the conveying device (4). The feed conveyor belt (32) is directly connected to a baffle (41) located on the conveyor belt (42).

5. The laser opening and shelling machine for pecans according to claim 1, characterized in that: The shell breaking device (5) comprises a large spring (51), a small spring (52), a spring frame (53), an adaptive extrusion disk (54), a base (55), a spring groove (56), a large pulley (57), a V-belt (58), a rotating extrusion disk (59), a small pulley (510), and a motor (511). The adaptive extrusion disk (54) and the rotating extrusion disk (59) are both mounted on two rotating shafts of different sizes, and the rotating shafts are respectively distributed on both sides of the base (55).

6. The laser opening and shelling machine for pecans according to claim 5, characterized in that: The gap between the adaptive extrusion disk (54) and the rotating extrusion disk (59) is adjusted by adjusting the expansion and contraction of the large spring (51) and the small spring (52) on both sides of the adaptive extrusion disk (54), thereby realizing adaptive adjustment of the adaptive extrusion disk (54) and the rotating extrusion disk (59). A motor (511) is fixedly mounted on one side of the base (55), a small pulley (510) is fixedly sleeved on the output end of the motor (511), and a large pulley (57) is sleeved on the top of the rotating extrusion disk (59).

7. The laser opening and shelling machine for pecans according to claim 6, characterized in that: The large pulley (57) and the small pulley (510) are connected via a V-belt (58); the motor (511) drives the rotating extrusion disk (59) to rotate via the large pulley (57) and the small pulley (510) at a rotational angular velocity ratio of 3:2; and the adaptive extrusion disk (54) and the rotating extrusion disk (59) are provided with evenly distributed rotating rough protrusion structures.

8. The laser opening and shelling machine for pecans according to claim 7, characterized in that: The adaptive extrusion disk (54) is connected to the spring frame (53), the spring frame (53) is fixedly mounted above the base (55), a spring slot (56) is provided on the base (55), a large spring (51) is mounted on the spring frame (53), a small spring (52) is mounted in the spring slot (56), and the adaptive extrusion disk (54) is connected to the spring frame (53) via the large spring (51) above.

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