A chestnut opening machine for frozen chestnuts

Abstract

This invention proposes a chestnut opening machine for frozen chestnuts, including an adjustment device, a feeding and return device located on the side wall of the adjustment device, a vibration centering device located at the outlet of the feeding and return device, a frame located on the side of the vibration centering device away from the feeding and return device, a clamping device located on the side wall of the frame, a protective box located on the frame, a flexible cutting device located at the clamping device, a return slide fixedly connected to the inner wall of the feeding and return device, two sets of conveyor belt pulleys rotatably connected to the two side walls of the feeding and return device, a conveyor belt located between the two sets of conveyor belt pulleys, and a motor located at either of the two sets of conveyor belt pulleys. This invention ensures secure chestnut clamping, stable chestnut conveying, and achieves three-sided opening at the center of the chestnut's arc surface, meeting the opening length requirements, and the automated cutting greatly improves cutting efficiency.

Description

Technical Field

[0001] This invention relates to the field of nut production technology, and in particular to a chestnut opening machine for frozen chestnuts. Background Technology

[0002] Frozen chestnuts are a newly emerging trending product. As a fast-moving consumer good among chestnut products, they have been strongly loved by consumers since their introduction to the market. During the production process, even slits must first be made on the surface of the chestnut, penetrating the shell without damaging the flesh. To ensure consumers can easily peel the shell without the flesh breaking, the cut surface must be at the center of the chestnut's curved surface, along the length of the chestnut, and the cut length must extend along the length plus the front and back sides to achieve a three-sided opening. Traditional chestnut slicing machines do not consider the cut surface and position, and the cut length does not meet the above requirements, resulting in problems such as messy opening directions, inconsistent opening lengths, and uneven opening depths. Furthermore, traditional manual cutting, where workers use knives to make the cuts, is inefficient due to the small size of the chestnuts, making them difficult to hold and prone to causing cuts to the operator. Summary of the Invention

[0003] The purpose of this invention is to at least address one of the aforementioned technical deficiencies.

[0004] Therefore, one object of the present invention is to provide a chestnut opening machine for frozen chestnuts, so as to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.

[0005] To achieve the above objectives, one embodiment of the present invention provides a chestnut opening machine for frozen chestnuts, including an adjustment device, a feeding and return device provided on the side wall of the adjustment device, a vibration centering device provided at the outlet of the feeding and return device, a frame provided on the side of the vibration centering device away from the feeding and return device, a clamping device provided on the side wall of the frame, a protective box provided on the frame, and a flexible cutting device provided at the clamping device.

[0006] The inner wall of the feeding and returning device is fixedly connected to a return slide. Two sets of conveyor belt pulleys are rotatably connected to the two side walls of the feeding and returning device. A conveyor belt is arranged between the two sets of conveyor belt pulleys. A motor is arranged at any one of the two sets of conveyor belt pulleys, and the motor drive end is fixedly connected to the end face of the corresponding conveyor belt pulley. The feeding device is arranged on the side of the conveyor belt away from the vibration centering device.

[0007] The vibration centering device includes a connecting bracket, on the upper surface of which a straight vibration table is fixedly connected, and a V-shaped slide is provided on the upper surface of the straight vibration table;

[0008] The clamping device includes a pneumatic slide, a fixed baffle is fixedly connected to the pneumatic slide by bolts, the fixed baffle is fixedly connected to the inner wall of the clamping device by bolts, a pneumatic gripper is fixedly connected to the slide seat of the pneumatic slide, and a clamping plate is fixedly connected to the clamping end of the pneumatic gripper.

[0009] The flexible cutting device includes a base, a high-speed motor is mounted on the base, a connecting shaft is fixedly connected to the drive end of the high-speed motor, a cutting blade is fixedly connected to the end of the connecting shaft away from the high-speed motor, a chestnut conveying device is mounted below the cutting blade, and a depth-limiting block is mounted on the chestnut conveying device.

[0010] Preferably, in any of the above embodiments, the feeding device includes a lifting tray, the discharge port of the lifting tray is located on the side of the conveyor belt away from the vibration centering device, the lifting tray is provided with a lifting mechanism, the upper surface of the feeding return device is located above the conveyor belt and is fixedly connected to brush mechanism one and brush mechanism two on both sides of the motor, and a hopper and a guide channel are provided between the lifting tray and the conveyor belt.

[0011] Preferably, in any of the above schemes, two evenly distributed flipping mechanisms one and two are provided inside the feeding and returning device and above the conveyor belt. The flipping mechanism one and the flipping mechanism two are located on both sides of the brush mechanism two. A belt strip is provided at the conveyor belt position. An air blowing mechanism is provided inside the feeding and returning device, and an air pump is provided at the air blowing mechanism position.

[0012] Preferably, in any of the above solutions, a clamping pad and a silicone sheet are fixedly connected to the inner side of the two clamping pieces.

[0013] Preferably, in any of the above embodiments, a bearing is fitted on the outer wall of the connecting shaft, and a spring is provided on the outer side of the bearing, with the spring being fixedly connected to the bottom of the clamping device.

[0014] Preferably, in any of the above solutions, a universal joint is fixedly connected to the center position of the side of the base away from the connecting shaft, the universal joint is fixedly connected to the inner wall of the clamping device, a damping cylinder is provided on any side of the bottom wall of the clamping device, a swing slide is provided at the lower position of the base, and the power slider of the swing slide is fixedly connected to the extension end of the damping cylinder.

[0015] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows:

[0016] This invention's feeding and return device uses a lifting tray to lift individual chestnuts. A guide channel is added behind the hopper to prevent clogging of the material inlet. After orientation adjustment, chestnuts with unsuitable positions or shapes are blown off by an air blowing mechanism and slide back into the hopper along the return slide, repeating the cycle. The orientation adjustment device uses a conveyor belt with patches on its surface for conveying. The device is equipped with three brush mechanisms: Brush Mechanism 1, Brush Mechanism 2, Tilting Mechanism 1, and Tilting Mechanism 2. Utilizing the differences in chestnut shapes, the conveyor belt pulls the chestnuts from their curved-side-down position to rotate them as much as possible. The vibration centering device uses... Using a vertical vibrating table in conjunction with a V-shaped conveyor trough at a certain angle, chestnuts of different orientations are automatically centered and output along their length due to the effect of their own center of gravity. The clamping device uses a sliding table cylinder and pneumatic grippers, combined with flexible clamping blocks, to quickly and accurately clamp the chestnuts in the correct position, and the clamping is stable and not easy to break. The flexible cutting device uses a universal joint connected to a high-speed DC motor. The output cutter, under the action of a swing slide and multiple spring damping, achieves three-sided openings along the center of the chestnut's arc surface, meeting the opening length requirements, and the automated cutting greatly improves the cutting efficiency.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is an assembly drawing according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the feeding, returning, and attitude adjustment device according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the vibration centering device according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the clamping device structure according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the flexible cutting device according to an embodiment of the present invention.

[0024] The components include: 1. Feeding and returning device; 2. Attitude adjustment device; 3. Vibration centering device; 4. Clamping device; 5. Flexible cutting device; 6. Frame; 7. Protective box; 8. Lifting mechanism; 9. Hopper and guide channel; 10. Brush mechanism one; 11. Tilting mechanism one; 12. Motor; 13. Brush mechanism two; 14. Tilting mechanism two; 15. Conveyor belt; 16. Return chute; 17. Air blowing mechanism; 18. Belt sticker; 19. Transmission... 20. Feeder pulley; 21. Lifting tray; 22. Vertical vibrating table; 23. V-shaped slide; 24. Connecting bracket; 25. Pneumatic slide; 26. Pneumatic gripper; 27. Clamping plate; 28. Clamping pad and silicone sheet; 29. ​​Fixed baffle; 30. Depth limit block; 31. Damping cylinder; 32. Connecting shaft; 33. Swing slide; 34. Universal joint; 35. High-speed motor; 36. Machine base; 37. Bearing; 38. Spring; 39. Cutting blade. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] like Figure 1-5 As shown in the embodiment of the present invention, a chestnut opening machine for frozen chestnuts includes an adjustment device 2. The adjustment device 2 is characterized by having a feeding and returning device 1 on its side wall, a vibration centering device 3 at the outlet of the feeding and returning device 1, a frame 6 on the side of the vibration centering device 3 away from the feeding and returning device 1, a clamping device 4 on the side wall of the frame 6, a protective box 7 on the frame 6, a flexible cutting device 5 on the clamping device 4, two evenly distributed flipping mechanisms 11 and 14 on the inside of the feeding and returning device 1 and above the conveyor belt 15, the flipping mechanisms 11 and 14 being located on both sides of the brush mechanism 13, a belt strip 18 on the conveyor belt 15, an air blowing mechanism 17 inside the feeding and returning device 1, and an air pump on the air blowing mechanism 17.

[0027] A return slide 16 is fixedly connected to the inner wall of the feeding and return device 1. Two sets of conveyor belt pulleys 19 are rotatably connected to the two side walls of the feeding and return device 1. A conveyor belt 15 is arranged between the two sets of conveyor belt pulleys 19. A motor 12 is arranged at the position of any one of the two sets of conveyor belt pulleys 19, and the driving end of the motor 12 is fixedly connected to the end face of the corresponding conveyor belt pulley 19. A feeding device is arranged on the side of the conveyor belt 15 away from the vibration centering device 3. The feeding device includes a lifting tray 20. The discharge port of the lifting tray 20 is located on the side of the conveyor belt 15 away from the vibration centering device 3. A lifting mechanism 8 is arranged at the position of the lifting tray 20. A brush mechanism 10 and a brush mechanism 2 13 are fixedly connected on the upper surface of the feeding and return device 1 above the conveyor belt 15 and on both sides of the motor 12, respectively. A hopper and a guide channel 9 are arranged between the lifting tray 20 and the conveyor belt 15.

[0028] The vibration centering device 3 includes a connecting bracket 23, a straight vibration table 21 is fixedly connected to the upper surface of the connecting bracket 23, and a V-shaped slide 22 is provided on the upper surface of the straight vibration table 21;

[0029] The clamping device 4 includes a pneumatic slide 24, a fixed baffle 28 is fixedly connected to the pneumatic slide 24 by bolts, the fixed baffle 28 is fixedly connected to the inner wall of the clamping device 4 by bolts, a pneumatic gripper 25 is fixedly connected to the slide position of the pneumatic slide 24, a clamping plate 26 is fixedly connected to the clamping end position of the pneumatic gripper 25, and a clamping pad and a silicone sheet 27 are fixedly connected to the inner side of the two clamping plates 26.

[0030] The flexible cutting device 5 includes a base 35. A universal joint 33 is fixedly connected to the center of the side of the base 35 away from the connecting shaft 31. The universal joint 33 is fixedly connected to the inner wall of the clamping device 4. A damping cylinder 30 is provided on any side of the bottom wall of the clamping device 4. A swing slide 32 is provided below the base 35, and the power slider of the swing slide 32 is fixedly connected to the extension end of the damping cylinder 30. A high-speed motor 34 is provided at the base 35. A connecting shaft 31 is fixedly connected to the drive end of the high-speed motor 34. A bearing 36 is sleeved on the outer wall of the connecting shaft 31. A spring 37 is provided on the outer side of the bearing 36. The spring 37 is fixedly connected to the bottom of the clamping device 4. A cutting blade 38 is fixedly connected to the end of the connecting shaft 31 away from the high-speed motor 34. A chestnut conveying device is provided below the cutting blade 38. A depth limit block 29 is provided at the chestnut conveying device.

[0031] The working principle of this invention is as follows:

[0032] The feeding and returning device 1 of this invention uses a lifting tray 20 to lift chestnuts individually. A guide channel is added behind the hopper to prevent the material inlet from getting clogged. After adjustment, chestnuts that are not in the right position or shape are blown off by the air blowing mechanism 17 and slide back to the hopper along the returning slide 16, repeating the cycle. The adjustment device 2 uses a conveyor belt with patches on its surface for conveying. A brush mechanism 10, a brush mechanism 2 13, a flipping mechanism 11, and a flipping mechanism 2 14 are added above the device. Utilizing the differences in the shape of the chestnuts, the conveyor belt 15 pulls the chestnuts so that the curved surface is facing down as much as possible. Turn around; the vibration centering device 3 uses a straight vibration table 21 in conjunction with a V-shaped slide 22 at a certain angle. Due to the effect of the chestnut's own center of gravity, chestnuts with different orientations are automatically centered and output along the length direction. The clamping device 4 uses a pneumatic slide 24 and a pneumatic gripper 25. With the help of clamping pads and silicone sheets 27, it can quickly and accurately clamp the chestnuts that have been adjusted to the correct position. The flexible cutting device 5 uses a universal joint 33 to connect to a high-speed motor 34. The cutting blade 38, under the damping action of the swing slide 32 and multiple springs 37, achieves a three-sided opening along the center of the chestnut's arc surface, which meets the opening length requirement.

[0033] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] It will be readily understood by those skilled in the art that this invention includes any combination of the inventive description and specific embodiments outlined in the foregoing specification, as well as the various parts shown in the accompanying drawings. Due to space limitations and for the sake of brevity, not all of these combinations have been described in detail. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

[0035] Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chestnut opening machine for frozen chestnuts, comprising an adjustment device (2), characterized in that, The attitude adjustment device (2) is provided with a feeding and return device (1) on its side wall. The feeding and return device (1) is provided with a vibration centering device (3) at its outlet. The vibration centering device (3) is provided with a frame (6) on the side away from the feeding and return device (1). The frame (6) is provided with a clamping device (4) on its side wall. The frame (6) is provided with a protective box (7). The clamping device (4) is provided with a flexible cutting device (5). The inner wall of the feeding and returning device (1) is fixedly connected to a return slide (16). Two sets of conveyor belt pulleys (19) are rotatably connected to the two side walls of the feeding and returning device (1). A conveyor belt (15) is provided between the two sets of conveyor belt pulleys (19). A motor (12) is provided at the position of any one of the two sets of conveyor belt pulleys (19), and the driving end of the motor (12) is fixedly connected to the end face of the corresponding conveyor belt pulley (19). A feeding device is provided on the side of the conveyor belt (15) away from the vibration centering device (3). An air blowing mechanism (17) is provided inside the feeding and returning device (1), and an air pump is provided at the position of the air blowing mechanism (17). The vibration centering device (3) includes a connecting bracket (23), a straight vibration table (21) is fixedly connected to the upper surface of the connecting bracket (23), and a V-shaped slide (22) is provided on the upper surface of the straight vibration table (21). The clamping device (4) includes a pneumatic slide (24), a fixed baffle (28) is fixedly connected to the pneumatic slide (24) by bolts, the fixed baffle (28) is fixedly connected to the inner wall of the clamping device (4) by bolts, a pneumatic gripper (25) is fixedly connected to the slide position of the pneumatic slide (24), and a clamping plate (26) is fixedly connected to the clamping end position of the pneumatic gripper (25). The flexible cutting device (5) includes a base (35), a high-speed motor (34) is provided at the base (35), a connecting shaft (31) is fixedly connected at the drive end of the high-speed motor (34), a cutting blade (38) is fixedly connected at the end of the connecting shaft (31) away from the high-speed motor (34), a chestnut conveying device is provided below the cutting blade (38), and a depth-limiting block (29) is provided at the chestnut conveying device. The outer wall of the connecting shaft (31) is fitted with a bearing (36), and a spring (37) is provided on the outside of the bearing (36). The spring (37) is fixedly connected to the bottom of the clamping device (4). A universal joint (33) is fixedly connected to the center of the side of the base (35) away from the connecting shaft (31). The universal joint (33) is fixedly connected to the inner wall of the clamping device (4). A damping cylinder (30) is provided on any side of the bottom wall of the clamping device (4). A swing slide (32) is provided below the base (35), and the power slider of the swing slide (32) is fixedly connected to the extension end of the damping cylinder (30).

2. The chestnut opening machine for frozen chestnuts as described in claim 1, characterized in that, The feeding device includes a lifting tray (20), the discharge port of the lifting tray (20) is located on the side of the conveyor belt (15) away from the vibration centering device (3), the lifting tray (20) is provided with a lifting mechanism (8), the upper surface of the feeding return device (1) is located above the conveyor belt (15) and is fixedly connected to the brush mechanism one (10) and the brush mechanism two (13) on both sides of the motor (12), and a hopper and a guide channel (9) are provided between the lifting tray (20) and the conveyor belt (15).

3. A chestnut opening machine for frozen chestnuts as described in claim 2, characterized in that, The feeding and return device (1) is provided with two evenly distributed flipping mechanisms one (11) and two flipping mechanisms two (14) on the inner side and above the conveyor belt (15). The flipping mechanisms one (11) and two flipping mechanisms two (14) are located on both sides of the brush mechanism two (13). The conveyor belt (15) is provided with belt strips (18).

4. A chestnut opening machine for frozen chestnuts as described in claim 1, characterized in that, A clamping pad and a silicone sheet (27) are fixedly connected to the inner side of the two clamping pieces (26).

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