A pomegranate seed taking device

Abstract

The utility model provides a pomegranate seed taking device relates to pomeranate seed taking technical field, the utility model discloses through the cooperation of first drive unit and support frame realizes the positioning of moving back and forth, and the combination second drive unit control's double claw body subassembly, through the hinging mechanism of first connecting arm and second connecting arm makes the arc clamping shell of end can with gradual type, self -adaptation mode package pomegranate surface, significantly increases the contact area, disperses the clamping pressure intensity, guarantees the clamping stability to pomegranate, prevents the rolling or the slide of happening, simultaneously, avoids causing pomegranate particle broken, and the problem such as the poor effect of taking particle, besides, through the second clamping subassembly set up in cutter both sides, utilizes rotary drive mechanism to drive the multiple negative pressure sucking disc on the mounting bracket to realize the stable transfer of cutting pomegranate, further ensures the fruit integrity, realizes the lossless stable clamping of pomegranate from positioning, cutting to the whole process of transfer, effectively reduces the equipment operation load, prolongs the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of pomegranate seed extraction technology, and in particular to a pomegranate seed extraction device. Background Technology

[0002] Pomegranates are rich in nutrients and have high edible and medicinal value. However, due to their structure, the harvesting of pomegranate seeds is relatively complex and difficult. In the research and development and application of automated pomegranate seed harvesting equipment, achieving stable and reliable pomegranate clamping has always been a key challenge restricting technological development.

[0003] Existing clamping mechanisms generally use linear cylinders as the drive source and often use grippers to directly grasp pomegranates. Their output torque is limited, and when clamping pomegranates with smooth surfaces and irregular shapes, the grip is extremely unstable. Rolling or slipping can easily occur during the process. To ensure clamping stability, a driving force exceeding the equipment's load-bearing capacity is often required, which seriously affects the equipment's service life and can easily cause problems such as pomegranate breakage and poor grain removal.

[0004] In view of this, the inventor has designed a pomegranate seed extraction device, which leads to this invention. Utility Model Content

[0005] To solve the above problems, the technical solution of this utility model is as follows: A pomegranate seed extraction device, comprising: The base has a frame fixed on top; A transmission assembly, mounted on the frame, includes a conveyor belt for transporting pomegranates; The first clamping assembly is slidably connected to the frame and located above the transmission assembly. The first clamping assembly includes a first drive unit mounted on the frame, a support frame that can move back and forth driven by the first drive unit, two claw assemblies symmetrically arranged on the support frame, and a second drive unit that drives the two claw assemblies to open and close in coordination. Each claw assembly includes a first connecting arm, a second connecting arm, and an arc-shaped clamping shell. One end of the first connecting arm is connected to the second drive unit, and the other end is hinged to the second connecting arm. The end of the second connecting arm is connected to the arc-shaped clamping shell. The frame is provided with a cutter that cooperates with the first clamping assembly. The cutter is located in the output direction of the transmission assembly. The second clamping assembly includes clamping frames symmetrically arranged on the frame and located on both sides of the cutter. Each clamping frame includes a rotary drive mechanism fixed on the frame, a mounting frame, and several negative pressure suction cups. The mounting frame is fixedly sleeved on the output shaft of the rotary drive mechanism. Several fixing rods extend evenly outward around the circumference of the mounting frame, and negative pressure suction cups are installed at the ends of the fixing rods.

[0006] Preferably, the arc-shaped clamping shell has an inwardly recessed arc-shaped clamping area, and the arc-shaped clamping areas of the two arc-shaped clamping shells are arranged opposite to each other to form an approximately hemispherical grasping space for containing and clamping the pomegranate.

[0007] Preferably, the surface of the conveyor belt is provided with a plurality of recessed placement grooves for accommodating pomegranates, which are evenly distributed along its conveying direction.

[0008] Preferably, the fixing rod is hollow, and each fixing rod is equipped with a device for generating negative pressure to provide negative pressure to the negative pressure suction cup.

[0009] Preferably, the surface of the negative pressure suction cup is provided with an anti-slip texture.

[0010] Preferably, the base is further provided with a receiving groove, which is located below the second clamping assembly.

[0011] Preferably, it also includes a feeding assembly, which includes a feeding trough and a feeding channel. One end of the feeding channel is connected to the bottom of the feeding trough, and the other end is connected to the conveyor belt of the transmission assembly.

[0012] Preferably, the feeding channel is inclined and its outlet end is connected to the conveyor belt. Several sets of limiting plates are arranged parallel to each other along the length of the feeding channel, and a guide channel is formed between adjacent limiting plates.

[0013] Preferably, it also includes a separation component, which includes a support column and a separation claw. The support column is provided with a rotating shaft and a drive cylinder. The drive cylinder is used to drive the rotating shaft to rotate. The separation claw is fixedly connected to the rotating shaft. The separation claw is a human-finger-shaped particle. The separation claw is used to extract the seeds of the pomegranate on the negative pressure suction cup.

[0014] The technical solution provided by this utility model has the following beneficial effects: This invention achieves forward and backward movement and positioning through the cooperation of a first drive unit and a support frame. Combined with a double-claw assembly controlled by a second drive unit, the arc-shaped clamping shell at the end of the first and second connecting arms can progressively and adaptively wrap around the pomegranate surface through a hinge mechanism, improving the traditional point contact to surface contact, significantly increasing the contact area, dispersing clamping pressure, ensuring stable clamping of the pomegranate, and preventing rolling or slipping. At the same time, the unique arc-shaped clamping shell design is highly compatible with the spherical shape of the pomegranate, ensuring sufficient clamping force while avoiding local pressure concentration, thus preventing problems such as pomegranate breakage and poor grain removal. In addition, through the second clamping components set on both sides of the cutter, the rotary drive mechanism drives multiple negative pressure suction cups on the mounting frame to achieve smooth transfer of the pomegranate after cutting, further ensuring the integrity of the fruit. This integrated clamping system achieves non-destructive and stable clamping of the pomegranate throughout the entire process from positioning, cutting to transfer through synergistic optimization of mechanical structure and drive control, effectively reducing the operating load of the equipment and extending its service life. Attached Figure Description

[0015] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0016] in: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the structure of the first clamping component of this utility model; Figure 4 This is a schematic diagram of the structure of the second clamping component of this utility model.

[0017] Label Explanation: 1. Base; 11. Frame; 2. Transmission assembly; 21. Conveyor belt; 22. Placement slot; 3. First clamping assembly; 31. First drive unit; 32. Support frame; 33. Claw assembly; 34. Second drive unit; 35. First connecting arm; 36. Second connecting arm; 37. Arc-shaped clamping shell; 4. Second clamping assembly; 41. Clamping frame; 42. Rotary drive mechanism; 43. Mounting frame; 44. Fixing rod; 45. Negative pressure suction cup; 46. Receiving slot; 5. Feeding assembly; 51. Feeding slot; 52. Feeding channel; 53. Limiting plate; 6. Separation assembly; 61. Support column; 62. Separation claw. Detailed Implementation

[0018] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0019] Please see Figures 1 to 4 This is a pomegranate seed extraction device, which is the preferred embodiment of the present invention, comprising: Base 1, with frame 11 fixed on top; The transmission assembly 2, mounted on the frame 11, includes a conveyor belt 21 for conveying pomegranates; The first clamping assembly 3 is slidably connected to the frame 11 and located above the transmission assembly 2. The first clamping assembly 3 includes a first drive unit 31 mounted on the frame 11, a support frame 32 driven by the first drive unit 31 to move back and forth, two claw assemblies 33 symmetrically arranged on the support frame 32, and a second drive unit 34 that drives the two claw assemblies 33 to open and close collaboratively. Each claw assembly 33 includes a first connecting arm 35, a second connecting arm 36, and an arc-shaped clamping shell 37. One end of the first connecting arm 35 is connected to the second drive unit 34, and the other end is hinged to the second connecting arm 36. The end of the second connecting arm 36 is connected to the arc-shaped clamping shell 37. The frame 1... The first clamping component 3 is equipped with a cutter that cooperates with the first clamping component 3. The cutter is located in the output direction of the transmission component 2. The cutter is a biomimetic modular cutter made of food-grade materials and strives to achieve a combination of flexible materials and rigid cutting effect. This not only improves the speed and threshing integrity rate, but also avoids the contamination problem that ordinary cutters are prone to during the cutting process. The first connecting arm 35 moves radially under the push of the second drive unit 34, and the second connecting arm 36 rotates around the hinge point, driving the arc-shaped clamping shell 37 to retract along a predetermined trajectory. The two arc-shaped clamping shells 37 form a spherical enclosing space to achieve uniform coverage of the pomegranate. Then, the cutter completes precise cutting in a stable clamping state.

[0020] The second clamping assembly 4 includes clamping frames 41 symmetrically arranged on the frame 11 and located on both sides of the cutter. Each clamping frame 41 includes a rotary drive mechanism 42 fixed on the frame 11, a mounting frame 43, and several negative pressure suction cups 45. The mounting frame 43 is fixedly sleeved on the output shaft of the rotary drive mechanism 42. Several fixing rods 44 extend evenly outward around the circumference of the mounting frame 43. Each of the fixing rods 44 has a negative pressure suction cup 45 installed at its end. After cutting, the second clamping assembly 4 is activated: the rotary drive mechanism 42 drives the mounting frame 43 to rotate and position, and the array of negative pressure suction cups 45 simultaneously adsorbs the cut pomegranate hemispheres. Through rotational motion, the pomegranate is accurately transferred to the separation assembly 6. The pomegranate is transported to the separation unit, where the seeds and peel are completely separated through a bionic kneading mechanism. Finally, the pomegranate seeds are collected uniformly by the collection system. The first drive unit 31 works in conjunction with the support frame 32 to achieve forward and backward movement and positioning. Combined with the double claw assembly 33 controlled by the second drive unit 34, a biomimetic embracing action is formed through the hinge mechanism of the first connecting arm 35 and the second connecting arm 36. This allows the arc-shaped clamping shell 37 at the end to wrap around the pomegranate surface in a progressive and adaptive manner, improving the traditional point contact to surface contact, significantly increasing the contact area and dispersing the clamping pressure. Secondly, the unique arc-shaped clamping shell 37 design is highly compatible with the spherical shape of the pomegranate. Combined with the mechanical amplification characteristics of the linkage transmission mechanism, it ensures sufficient clamping force while avoiding local pressure concentration, fundamentally solving the problems of peel damage and juice seepage. In addition, through the second clamping assembly 4 set on both sides of the cutter, the rotary drive mechanism 42 drives multiple negative pressure suction cups 45 on the mounting frame 43 to achieve smooth transfer of the pomegranate after cutting. This non-contact negative pressure adsorption method further ensures the integrity of the fruit peel. This integrated clamping system achieves non-destructive and stable clamping of pomegranates throughout the entire process from positioning and cutting to transfer through the coordinated optimization of mechanical structure and drive control. It not only increases the seed integrity rate to over 97%, but also shortens the processing time of a single pomegranate to 28 seconds. At the same time, it effectively reduces the operating load of the equipment and extends its service life, providing reliable technical support for the automated processing of pomegranates.

[0021] Please refer to Figures 1 to 3The arc-shaped clamping shell 37 has an inwardly recessed arc-shaped clamping area. The arc-shaped clamping areas of two arc-shaped clamping shells 37 are arranged opposite each other, forming a near-hemispherical grasping space for containing and holding the pomegranate. The surfaces of the arc-shaped clamping areas are all treated with anti-slip coating, effectively solving the contradiction between clamping stability and fruit integrity in automated pomegranate processing. Specifically, this structure innovatively transforms the point or line contact of traditional grippers into a curved surface contact that highly conforms to the spherical shape of the pomegranate, so that the clamping force is evenly distributed over a larger contact area, fundamentally eliminating the problem of peel damage caused by local pressure concentration. At the same time, this inclusive grasping space can adapt to pomegranates of different sizes during the clamping process, preventing the fruit from slipping or shifting through a three-dimensional envelope effect, ensuring the stability of the cutting and transfer process.

[0022] Please refer to Figure 1 and Figure 2 The conveyor belt 21 has several recessed placement grooves 22 evenly distributed along its conveying direction to accommodate pomegranates, effectively solving the problems of inaccurate positioning, rolling deviation, and surface damage caused by mutual collisions during the conveying process. Specifically, the customized accommodating space formed by each placement groove 22 is highly compatible with the shape of the pomegranate, ensuring that the fruit remains in a predetermined position and stable posture during conveying, avoiding the positioning deviation caused by the rolling of pomegranates on the traditional flat conveyor belt 21. This precise positioning allows the pomegranates to be accurately conveyed to the gripping station of the first clamping component 3, providing a reliable positional reference for subsequent automated clamping and cutting processes.

[0023] Please refer to Figures 1 to 3 The fixing rod 44 is hollow, and each fixing rod 44 has a device inside that generates negative pressure for the negative pressure suction cup 45. The surface of the negative pressure suction cup 45 is covered with anti-slip texture. The hollow fixing rod 44 integrates the negative pressure generation function, eliminating the structural interference and movement restrictions caused by the external pipeline, making the suction cup array layout more compact. The anti-slip texture on the surface of the suction cup significantly increases the friction coefficient with the pomegranate peel, effectively preventing slippage caused by the smooth surface of the fruit during high-speed rotation and transfer.

[0024] Please refer to Figures 1 to 2 The base 1 is also provided with a receiving groove 46, which is located below the second clamping assembly 4. It can receive and contain juice, pulp fragments and loose seeds falling from the cutting station and transfer path in real time, preventing these residues from contaminating key components such as the conveyor belt 21 and the transmission mechanism, while also accommodating pomegranates that fall when the grip is unstable.

[0025] Please refer to Figures 1 to 2The system also includes a feeding assembly 5, which comprises a feeding trough 51 and a feeding channel 52. One end of the feeding channel 52 is connected to the bottom of the feeding trough 51, and the other end is connected to the conveyor belt 21 of the transmission assembly 2. The feeding channel 52 is set at an inclination angle of 30° relative to the horizontal plane. The outlet end of the feeding channel 52 is connected to the conveyor belt 21, and the outlet end of the feeding channel 52 is the lower end. Three sets of limiting plates 53 are arranged parallel to each other along the length of the feeding channel 52. A guide channel with a width of 80-120mm is formed between adjacent limiting plates 53. The inlet width of this guide channel is greater than the outlet width, forming a tapering structure, which effectively solves the problems of blockage, collision damage, and disordered conveying that easily occur during the pomegranate feeding process. The inclined channel uses gravity to realize the automatic sliding of pomegranates, reducing the additional power requirement; while the limiting channel formed by the limiting plates 53 physically guides and controls the spacing of the falling pomegranates, which not only prevents surface damage caused by mutual squeezing and collision between fruits, but also ensures that the pomegranates enter the conveyor belt 21 in an orderly single row.

[0026] Please refer to Figures 1 to 2 It also includes a separation component 6, which includes a support column 61 and a separation claw 62. The support column 61 is equipped with a rotating shaft and a drive cylinder. The drive cylinder is used to drive the rotating shaft to rotate. The separation claw 62 is fixedly connected to the rotating shaft. The separation claw 62 is a human-finger-shaped meat particle. The separation claw 62 is used to extract pomegranate seeds from the negative pressure suction cup 45. The separation component 6 and the conveyor belt 21 move through the same drive motor. This solution uses a separation claw 62 with a human-finger-shaped meat particle structure. The drive cylinder precisely controls the rotating shaft to drive it to perform a biomimetic kneading action, which effectively solves the problems of high seed breakage rate and a lot of fruit pulp residue in traditional mechanical seed extraction devices. The flexible contact surface of the separating claw 62 simulates the gentle force of human hands picking seeds. During rotation, it applies uniform kneading pressure to the pomegranate fixed by the negative pressure suction cup 45, ensuring that the pomegranate seeds are completely peeled from the inner membrane, while controlling the seed breakage rate to below 5% and the pulp residue rate to below 3%. This achieves a seed integrity extraction rate of up to 97%, significantly improving the quality and efficiency of pomegranate seed extraction.

[0027] In summary, this utility model achieves forward and backward movement and positioning through the cooperation of the first drive unit 31 and the support frame 32. Combined with the double claw body assembly 33 controlled by the second drive unit 34, the arc-shaped clamping shell 37 at the end can progressively and adaptively wrap around the pomegranate surface through the hinge mechanism of the first connecting arm 35 and the second connecting arm 36, improving the traditional point contact to surface contact, significantly increasing the contact area, dispersing the clamping pressure, ensuring stable clamping of the pomegranate, and preventing rolling or slipping. At the same time, the unique arc-shaped clamping shell 37 design is highly compatible with the spherical shape of the pomegranate. While ensuring sufficient clamping force, it avoids local pressure concentration, thus preventing problems such as pomegranate seed breakage and poor seed extraction. In addition, by setting second clamping components 4 on both sides of the cutter, the rotary drive mechanism 42 drives multiple negative pressure suction cups 45 on the mounting frame 43 to achieve smooth transfer of the pomegranate after cutting, further ensuring the integrity of the fruit. This integrated clamping system achieves non-destructive and stable clamping of pomegranates throughout the entire process from positioning, cutting to transfer through the coordinated optimization of mechanical structure and drive control, effectively reducing the operating load of the equipment and extending the service life of the equipment.

[0028] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A pomegranate seed extraction device, characterized in that, include: The base has a frame fixed on top; A transmission assembly, mounted on the frame, includes a conveyor belt for transporting pomegranates; The first clamping assembly is slidably connected to the frame and located above the transmission assembly. The first clamping assembly includes a first drive unit mounted on the frame, a support frame that can move back and forth driven by the first drive unit, two claw assemblies symmetrically arranged on the support frame, and a second drive unit that drives the two claw assemblies to open and close in coordination. Each claw assembly includes a first connecting arm, a second connecting arm, and an arc-shaped clamping shell. One end of the first connecting arm is connected to the second drive unit, and the other end is hinged to the second connecting arm. The end of the second connecting arm is connected to the arc-shaped clamping shell. The frame is provided with a cutter that cooperates with the first clamping assembly. The cutter is located in the output direction of the transmission assembly. The second clamping assembly includes clamping frames symmetrically arranged on the frame and located on both sides of the cutter. Each clamping frame includes a rotary drive mechanism, a mounting frame, and several negative pressure suction cups fixed on the frame. The mounting frame is fixedly sleeved on the output shaft of the rotary drive mechanism. Several fixing rods extend evenly outward around the circumference of the mounting frame, and negative pressure suction cups are installed at the ends of the fixing rods.

2. The pomegranate seed extraction device according to claim 1, characterized in that, The arc-shaped clamping shell has an inwardly recessed arc-shaped clamping area. The arc-shaped clamping areas of the two arc-shaped clamping shells are arranged opposite each other, together forming an approximately hemispherical grasping space for containing and clamping the pomegranate.

3. The pomegranate seed extraction device according to claim 1, characterized in that, The surface of the conveyor belt is provided with several recessed placement grooves for accommodating pomegranates, which are evenly distributed along its conveying direction.

4. A pomegranate seed extraction device according to claim 1, characterized in that, The fixing rod is hollow, and each fixing rod is equipped with a device that generates negative pressure to provide negative pressure to the negative pressure suction cup.

5. A pomegranate seed extraction device according to claim 1, characterized in that, The surface of the negative pressure suction cup is provided with anti-slip texture.

6. A pomegranate seed extraction device according to claim 1, characterized in that, The base is also provided with a receiving groove, which is located below the second clamping assembly.

7. A pomegranate seed extraction device according to claim 1, characterized in that, It also includes a feeding assembly, which includes a feeding trough and a feeding channel. One end of the feeding channel is connected to the bottom of the feeding trough, and the other end is connected to the conveyor belt of the transmission assembly.

8. A pomegranate seed extraction device according to claim 7, characterized in that, The feeding channel is inclined and its outlet end is connected to the conveyor belt. Several sets of limiting plates are arranged parallel to each other along the length of the feeding channel, and a guide channel is formed between adjacent limiting plates.

9. A pomegranate seed extraction device according to claim 1, characterized in that, It also includes a separation component, which includes a support column and a separation claw. The support column is equipped with a rotating shaft and a drive cylinder. The drive cylinder is used to drive the rotating shaft to rotate. The separation claw is fixedly connected to the rotating shaft. The separation claw is a human-finger-shaped particle. The separation claw is used to extract the seeds of the pomegranate on the negative pressure suction cup.

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