Automatic jujube kernel removing device

Abstract

This utility model proposes an automatic pitting device for jujubes, belonging to the field of stone fruit processing equipment. It solves the problems of low efficiency and significant damage in existing jujube pitting devices. It includes a frame, a motor, a conveyor mechanism, a feeding mechanism, a pitting mechanism, and a discharge collection mechanism. The motor and conveyor mechanism are mounted on the frame. The conveyor mechanism includes a chain conveyor belt and sprockets. The motor output is connected to the sprockets, and the sprockets are connected to the chain conveyor belt. Each chain plate of the chain conveyor belt has several through holes at equal intervals. The feeding mechanism and pitting mechanism are sequentially arranged along the conveying direction on the frame. The discharge collection mechanism is located at the bottom of the chain conveyor belt. A vibration motor is mounted on the feeding mechanism. The pitting mechanism includes a hollow punch with an elastic buffer device. It is mainly used for removing jujube pits.

Description

Technical Field

[0001] This utility model belongs to the field of stone fruit processing equipment, and in particular relates to an automatic pitting device for jujubes. Background Technology

[0002] As an important agricultural product, jujubes are widely used in food processing. Pitting jujubes is a crucial processing step, and the demand for deep processing is increasing. However, traditional pitting methods have significant drawbacks. Traditional manual pitting is inefficient, labor-intensive, and yields inconsistent results due to variations in human operation, making it difficult to meet the needs of large-scale production. Existing jujube pitting equipment suffers from complex structures, incomplete pitting, damage to the jujube flesh, and high equipment costs, leading to increased processing costs for enterprises and limitations on product quality and production efficiency. Furthermore, it generally suffers from poor adaptability to jujube shapes; irregularly shaped jujubes are prone to shifting during processing, making it difficult to control their shape and resulting in pitting failure or flesh damage. Although some jujube pitting devices employ straightening mechanisms, they require complex sensors, further complicating the structure and increasing maintenance costs. In addition, existing jujube pitting equipment generally lacks continuous operation capabilities, requiring frequent manual loading and unloading, resulting in insufficient automation. Utility Model Content

[0003] In view of this, the present invention aims to propose an automatic jujube pitting device to solve the problems of low efficiency and high damage of existing jujube pitting devices.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: an automatic jujube pitting device, comprising a frame, a motor, a conveying mechanism, a feeding mechanism, a pitting mechanism, and a discharge collection mechanism. The frame is equipped with a motor and a conveying mechanism. The conveying mechanism includes a chain conveyor belt and a sprocket. The motor output is connected to the sprocket, and the sprocket is connected to the chain conveyor belt. Each chain plate of the chain conveyor belt has several through holes at equal intervals. The frame is sequentially equipped with the feeding mechanism and the pitting mechanism along the conveying direction. A discharge collection mechanism is located at the bottom of the chain conveyor belt. The feeding mechanism is equipped with... The vibrating motor and the core removal mechanism include hollow punches, a core removal crossbar, a crank, a connecting rod, a core removal bracket, and a core removal column. The bottom of the core removal bracket is connected to the frame, the top of the core removal column is connected to the core removal bracket, and the bottom of the core removal column is connected to the frame. The core removal crossbar is slidably connected to the core removal column. One end of the core removal crossbar is connected to one end of the connecting rod, and the other end of the connecting rod is connected to one end of the crank. The other end of the crank is connected to the motor. Several hollow punches are evenly spaced on the core removal crossbar. Each hollow punch is equipped with an elastic buffer device. The hollow punches correspond to the through holes on the chain of the chain conveyor belt.

[0005] Furthermore, the elastic buffer device includes a top material rod, a top material spring, and a retaining ring. The top material spring is sleeved on the hollow punch, and a retaining ring is provided on the top of the top material spring. The top material rod is sleeved on the outside of the top material spring, and the inner side of the top of the top material rod contacts the retaining ring.

[0006] Furthermore, the feeding mechanism includes a feeding hopper, conveying pipes, springs, and a feeding bracket. The bottom of the feeding bracket is connected to the frame, and the two sides of the feeding hopper are slidably connected to the feeding bracket. Springs are provided on both sides of the bottom of the feeding hopper, and the springs are connected to the feeding bracket. Vibration motors are provided on both sides of the feeding hopper. Several conveying pipes are evenly spaced at the bottom of the feeding hopper, and the conveying pipes correspond to the through holes on the chain plate of the chain conveyor belt.

[0007] Furthermore, the diameter of the conveying pipe is greater than the diameter of the jujube body but less than the length of the jujube body.

[0008] Furthermore, the discharge collection mechanism includes a guide slide and a core collection trough. The guide slide is located at the bottom of the output end of the chain conveyor belt, and the core collection trough is located below the chain conveyor belt corresponding to the hollow punch.

[0009] Furthermore, both the material guide chute and the core collection trough are inclined downwards.

[0010] Furthermore, several of the through holes are tapered holes, with the upper part of the tapered hole being a positioning groove and the lower part being a core-leaking hole, and the diameter of the positioning groove being larger than the diameter of the core-leaking hole.

[0011] Furthermore, the motor output is connected to the crank and sprocket respectively via a pulley assembly.

[0012] Furthermore, the conveying pipe is snapped into the feeding hopper.

[0013] Furthermore, the bottom of the frame is connected to the support legs via adjusting screws.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model uses a vibrating motor in conjunction with an inclined feeding hopper to guide and adjust the posture of the jujubes, so that the jujubes enter the conveying pipe in the same posture and fall into the through hole on the chain of the lower chain conveyor belt, thereby ensuring the accuracy of the jujube posture and preparing for the pitting process.

[0016] 2. The conveying pipe of this utility model is snapped to the bottom of the feeding hopper. The conveying pipe of different sizes can be replaced according to the size of the red dates. The conveying pipe is mainly used to cooperate with the feeding device to ensure that the red dates are in a vertical position when they fall into the through hole on the chain of the chain conveyor belt, so as to facilitate the next step of pitting process.

[0017] 3. This utility model adopts the coordinated positioning of hollow punch assembly and positioning groove to ensure accurate positioning of the jujube body during processing;

[0018] 4. The pitting mechanism in this utility model adopts a hollow punch structure, and a top spring and a top rod are set at the bottom of the hollow punch. When the hollow punch moves downward, the bottom of the top rod contacts the jujube, and the top rod moves upward to compress the top spring. The top spring contacts the retaining ring. After the hollow punch removes the jujube pit, the hollow punch moves upward, the top spring returns to its deformation, and gives the jujube a push force, so that the jujube falls from the hollow punch, thereby preventing the jujube from getting stuck on the hollow punch after pitting.

[0019] 5. This utility model realizes the integrated operation of feeding, transportation, pitting and collecting. The modular design enables the rapid separation and classification of date pits and pulp, which significantly improves the efficiency of date pitting and reduces labor costs.

[0020] 6. This utility model has a simple overall structure, is easy to maintain, has low manufacturing cost, and occupies a small area, making it suitable for processing by enterprises of different sizes. Attached Figure Description

[0021] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0022] Figure 1 This is a first-view structural diagram of an automatic jujube pitting device according to the present invention;

[0023] Figure 2 This is a second-view structural diagram of an automatic jujube pitting device according to the present invention;

[0024] Figure 3 This is a schematic diagram of the support mechanism and transmission mechanism of the automatic jujube pitting device of this utility model.

[0025] Figure 4 This is a schematic diagram of the axial side structure of the feeding mechanism of the automatic jujube pitting device of this utility model;

[0026] Figure 5 This is a schematic diagram of the axonometric structure of the pitting mechanism of the automatic pitting device for jujubes described in this utility model.

[0027] Figure 6 This is a partial structural diagram of the hollow punch of the automatic jujube pitting device described in this utility model.

[0028] In the picture:

[0029] 1. Frame; 2. Feeding hopper; 3. Vibrating motor; 4. Conveying pipe; 5. Chain conveyor belt; 6. Positioning groove; 7. Hollow punch; 8. Push rod; 9. Push spring; 10. Core removal crossbar; 11. Crank; 12. Connecting rod; 13. Motor; 14. Guide slide; 15. Core collection trough; 16. Spring; 17. Sprocket; 18. Core leakage hole; 19. Support foot; 20. Pulley assembly; 21. Feeding bracket; 22. Core removal bracket; 23. Core removal column; 24. Retaining ring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0031] Detailed implementation method: See Figure 1-6This embodiment describes an automatic jujube pitting device, which includes a frame 1, a motor 13, a conveying mechanism, a feeding mechanism, a pitting mechanism, and a discharge and collection mechanism. The frame 1 houses the motor 13 and the conveying mechanism, primarily providing support for the overall structure. The motor 13 provides power for the device's operation. The conveying mechanism includes a chain conveyor belt 5 and a sprocket 17. The output end of the motor 13 is connected to the sprocket 17. A speed-changing device can also be installed between the motor 13 and the sprocket 17 to change the output shaft of the motor 13. The rotational speed is such that the sprocket 17 is connected to the chain conveyor belt 5, the horizontal plane of the chain conveyor belt 5 is parallel to the ground, and each chain plate of the chain conveyor belt 5 is provided with several through holes at equal intervals for placing the dates. The frame 1 is provided with a feeding mechanism and a pitting mechanism in sequence along the transportation direction. The bottom of the chain conveyor belt 5 is provided with a discharge collection mechanism. The feeding mechanism is provided with a vibration motor 3, which generates vibration to adjust the posture of the dates. The pitting mechanism includes a hollow punch 7, a pitting crossbar 10, and a curved... The machine comprises a handle 11, a connecting rod 12, a pitting support 22, and a pitting column 23. The bottom of the pitting support 22 is connected to the frame 1. The top of the pitting column 23 is connected to the pitting support 22, and the bottom is connected to the frame 1. The pitting crossbar 10 is slidably connected to the pitting column 23, allowing the crossbar 10 to slide up and down on the column 23. One end of the crossbar 10 is connected to one end of the connecting rod 12, and the other end of the connecting rod 12 is connected to one end of the crank 11. The other end of the crank 11 is connected to the motor 13. A number of hollow punches 7 are evenly spaced on the rod 10. Each hollow punch 7 is equipped with an elastic buffer device to prevent the pitted jujube from getting caught on the hollow punches 7 and to reduce damage to the jujube flesh during the punching process. The hollow punches 7 correspond to the through holes on the chain of the chain conveyor belt 5. The motor 13 drives the crank 11 to move, the crank 11 drives the connecting rod 12 to move, and the connecting rod 12 drives the pitting crossbar 10 to move, so that the downward movement of the hollow punches 7 can accurately pass through the jujube to complete the pitting, and the upward movement can reset the jujube.

[0032] The working principle of this utility model is as follows:

[0033] After the motor 13 starts, it drives the sprocket 17 to rotate. The rotation of the sprocket 17 drives the chain conveyor belt 5 to circulate. The feeding mechanism makes the jujubes evenly placed on the through holes of the chain plate. At the same time, the vibration motor 3 generates vibration to adjust the posture of the jujubes, so that the jujubes fall vertically into the through holes of the chain plate. The jujubes that fall into the through holes of the chain plate move with the chain conveyor belt 5. When the jujubes reach the pitting mechanism, the motor 13 drives the crank 11 to move. The crank 11 drives the connecting rod 12 to move. The connecting rod 12 drives the crossbar to move up and down in a reciprocating motion, so that the hollow punch 7 accurately pierces the jujubes in the through holes of the chain plate, thereby completing the pitting of the jujubes. The pits and jujube flesh are collected by the discharge collection device. The whole process realizes the automated pitting operation through the continuous transportation of the chain conveyor belt 5 and the reciprocating punching of the hollow punch 7.

[0034] The elastic buffer device includes a top material rod 8, a top material spring 9, and a retaining ring 24. The top material spring 9 is sleeved on the hollow punch 7. The retaining ring 24 is provided on the top of the top material spring 9. The top material rod 8 is sleeved on the outside of the top material spring 9. The inner side of the top of the top of the top material rod 8 contacts the retaining ring 24. When the jujube reaches directly below the hollow punch 7, the crank 11 drives the connecting rod 12. The connecting rod 12 drives the pitting crossbar 10 to move downward along the pitting column 23. When the lower surface of the top material rod 8 touches the jujube... Upon contact, the ejector rod 8 moves upward, the ejector spring 9 is compressed, and it contacts the retaining ring 24. After the hollow punch 7 ejects the date pit, the crank 11 drives the connecting rod 12, and the connecting rod 12 drives the pitting crossbar 10 to move upward along the pitting column 23. At this time, the ejector spring 9 returns to its original shape, and at the same time, the date body falls from the hollow punch 7, thus completing the pitting work. Through the coordinated cooperation of the ejector rod 8 and the hollow punch 7, the date body is straightened and the date body is pushed off the hollow punch.

[0035] The feeding mechanism includes a feeding hopper 2, conveying pipes 4, springs 16, and a feeding support 21. The bottom of the feeding support 21 is connected to the frame 1. The feeding hopper 2 is used to store pitted dates. The two sides of the feeding hopper 2 are slidably connected to the feeding support 21. Springs 16 are installed on both sides of the bottom of the feeding hopper 2 and are connected to the feeding support 21. Vibration motors 3 are installed on both sides of the feeding hopper 2. The vibration motors 3 generate vibrations to adjust the posture of the dates, so that the dates enter the conveying pipes 4 in a vertical position. The springs 16 are used to cooperate with the vibration motors 3 to adjust the posture of the dates. Several conveying pipes 4 are evenly spaced at the bottom of the feeding hopper 2. The conveying pipes 4 are connected to the chain conveyor belt. The positions of the through holes on the chain plate 5 correspond to the positions of the conveyor pipe 4, which is used to transport the adjusted jujubes into the through holes on the chain plate conveyor belt 5 for subsequent pitting operations. Under the combined action of the vibration motor 3 and the spring 16, the jujubes in the feeding hopper 2 are affected by vibration and elastic force. The jujubes collide and rub against each other continuously, and their posture changes accordingly. Due to the vibration, the jujubes will gradually move from various positions in the feeding hopper 2 towards the entrance of the conveyor pipe 4. During the movement, under the combined action of vibration and spring force, the jujubes gradually adjust to a vertical posture, so that they can smoothly enter the conveyor pipe 4 and be transported to the through holes on the chain plate conveyor belt 5 for pitting operations.

[0036] The diameter of the conveying pipe 4 is larger than the diameter of the jujube body but smaller than its length. Since the diameter of the conveying pipe 4 is smaller than the length of the jujube body, the movement of the jujube inside the pipe is restricted. The jujube cannot pass through the conveying pipe 4 horizontally or at other angles, thus ensuring that the jujube body can only fall into the through hole of the chain plate in a vertical position. This makes it easier for the subsequent pitting device to accurately align with the pit of the jujube body, achieving precise pitting, greatly improving the success rate and efficiency of pitting, and ensuring the efficient and stable operation of the entire jujube pitting production line.

[0037] The discharge collection mechanism includes a guide slide 14 and a pit collection trough 15. The guide slide 14 is located at the bottom of the output end of the chain conveyor belt 5, and the pit collection trough 15 is located below the chain conveyor belt 5 corresponding to the hollow punch 7. The guide slide 14 is used to collect the pitted jujubes. During the pitting process, after the hollow punch 7 pushes the pit out of the jujube, the pit will fall into the pit collection trough 15, preventing the pit from being mixed into the pitted jujube and facilitating the subsequent unified processing or recycling of the pit.

[0038] Both the guide chute 14 and the pit collection trough 15 are inclined downwards, using gravity to allow the pitted dates and pits to slide down more smoothly and be effectively collected, avoiding the accumulation of pitted dates and pits and improving collection efficiency.

[0039] Several of the through holes are tapered holes, with the upper part of the tapered hole being a positioning groove 6 and the lower part being a pit-draining hole 18. The diameter of the positioning groove 6 is larger than the diameter of the pit-draining hole 18, and the diameter of the pit-draining hole 18 is designed to be smaller than that of the positioning groove 6. This prevents the jujubes from falling off the chain conveyor belt 5 during the pitting process, ensuring that the jujubes remain stable on the conveyor belt until the pitting operation is completed and they are conveyed to the guide slide 14. After the hollow punch 7 completes the pitting operation, the jujube pits are pushed out of the jujubes. Because the diameter of the positioning groove 6 is larger and the diameter of the pit-draining hole 18 is smaller, the jujube pits can be smoothly discharged through the pit-draining hole 18 and fall into the pit collection trough 15 below. By setting the through holes as tapered holes, the pitting and pit collection process of jujubes is made more efficient and orderly, improving the working efficiency and reliability of the entire device.

[0040] The output end of the motor 13 is connected to the crank 11 and the sprocket 17 via a pulley assembly 20. The pulley assembly 20 includes multiple pulleys and a transmission belt. Through the distribution of the pulley assembly 20, the power of the motor 13 can simultaneously drive the conveying mechanism and the pitting mechanism, improving power utilization efficiency and reducing energy waste. The pulley assembly 20 can change the conveying speed of the chain conveyor belt 5 and the movement frequency of the pitting mechanism by replacing pulleys of different diameters or adjusting the tension of the transmission belt, so that the chain conveyor belt 5 and the pitting mechanism work synchronously, thereby improving pitting efficiency. In actual production, a speed-changing device can be set between the motor and the sprocket. The operator can adjust the speed of the sprocket through the speed-changing device according to the size of the jujubes, the difficulty of pitting, and the production efficiency requirements. For example, for larger or more difficult-to-pit jujubes, the sprocket speed can be reduced, making the jujubes move more slowly on the conveyor belt, thus providing more operating time for the pitting mechanism and ensuring the pitting effect; while for smaller or easier-to-pit jujubes, the sprocket speed can be increased to speed up the conveying speed and improve production efficiency.

[0041] The conveying pipe 4 is snapped into the feeding hopper 2, which makes it easy to replace the conveying pipe 4 of different sizes to accommodate jujubes of different sizes, thereby ensuring that the jujubes fall vertically into the through hole of the chain plate.

[0042] The bottom of the frame 1 is connected to the support foot 19 via an adjusting screw. If the ground on which the device is placed is uneven, the height of the support foot 19 can be adjusted by rotating the adjusting screw to keep the frame 1 level, thus ensuring the stability and smooth operation of the entire device.

[0043] The specific embodiments of this utility model disclosed above are merely illustrative of the present utility model. These specific embodiments do not exhaustively describe all details, nor do they limit the utility model to only the described embodiments. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. An automatic pitting device for jujubes, characterized in that: It includes a frame (1), a motor (13), a transport mechanism, a feeding mechanism, a core removal mechanism, and a discharge collection mechanism. The frame (1) is equipped with a motor (13) and a transport mechanism. The transport mechanism includes a chain conveyor belt (5) and a sprocket (17). The output end of the motor (13) is connected to the sprocket (17). The sprocket (17) is connected to the chain conveyor belt (5). Each chain plate of the chain conveyor belt (5) is provided with several through holes at equal intervals. The frame (1) is provided with a feeding mechanism and a core removal mechanism in sequence along the transport direction. The bottom of the chain conveyor belt (5) is provided with a discharge collection mechanism. The feeding mechanism is equipped with a vibrating motor (3). The core removal mechanism includes a hollow punch (7), a core removal crossbar (10), and a crank (11). The components include a connecting rod (12), a core removal bracket (22), and a core removal column (23). The bottom of the core removal bracket (22) is connected to the frame (1). The top of the core removal column (23) is connected to the core removal bracket (22), and the bottom is connected to the frame (1). The core removal crossbar (10) is slidably connected to the core removal column (23). One end of the core removal crossbar (10) is connected to one end of the connecting rod (12). The other end of the connecting rod (12) is connected to one end of the crank (11). The other end of the crank (11) is connected to the motor (13). Several hollow punches (7) are evenly spaced on the core removal crossbar (10). The hollow punches (7) are equipped with elastic buffer devices. The hollow punches (7) correspond to the through holes on the chain of the chain conveyor belt (5).

2. The automatic red date de-coring device according to claim 1, characterized in that: The elastic buffer device includes a top rod (8), a top spring (9) and a retaining ring (24). The top spring (9) is sleeved on the hollow punch (7). A retaining ring (24) is provided on the top of the top spring (9). The top rod (8) is sleeved on the outside of the top spring (9). The top inner side of the top of the top rod (8) is in contact with the retaining ring (24).

3. The automatic red date kernel removing device according to claim 1, characterized in that: The feeding mechanism includes a feeding hopper (2), a conveying pipe (4), a spring (16), and a feeding bracket (21). The bottom of the feeding bracket (21) is connected to the frame (1). The two sides of the feeding hopper (2) are slidably connected to the feeding bracket (21). Springs (16) are provided on both sides of the bottom of the feeding hopper (2). The springs (16) are connected to the feeding bracket (21). Vibration motors (3) are provided on both sides of the feeding hopper (2). Several conveying pipes (4) are provided at equal intervals at the bottom of the feeding hopper (2). The conveying pipes (4) correspond to the through holes on the chain plate of the chain conveyor belt (5).

4. The automatic jujube kernel removing device according to claim 3, characterized in that: The diameter of the conveying pipe (4) is greater than the diameter of the jujube body and less than the length of the jujube body.

5. The automatic red date kernel removing device according to claim 1, characterized in that: The discharge collection mechanism includes a guide slide (14) and a core collection trough (15). The guide slide (14) is located at the bottom of the output end of the chain conveyor belt (5), and the core collection trough (15) is located below the chain conveyor belt (5) corresponding to the hollow punch (7).

6. The automatic jujube kernel removing device according to claim 5, characterized in that: Both the material guide chute (14) and the core collection tank (15) are inclined downwards.

7. The automatic red date kernel removing device according to claim 1, characterized in that: Several of the through holes are tapered holes, with the upper part of the tapered hole being a positioning groove (6) and the lower part being a core leakage hole (18). The diameter of the positioning groove (6) is larger than the diameter of the core leakage hole (18).

8. The automatic red date kernel removing device according to claim 1, characterized in that: The output end of the motor (13) is connected to the crank (11) and the sprocket (17) respectively via a pulley group (20).

9. The automatic jujube kernel removing device according to claim 3, characterized in that: The material conveying pipe (4) is connected to the feeding hopper (2).

10. The automatic jujube kernel removing device according to claim 1, characterized in that: The bottom of the frame (1) is connected to the support foot (19) via an adjusting screw.

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