Dalbergia legume seed wing removing device and method

Abstract

The invention discloses a dalbergia legume seed wing removing device and method, relates to the technical field of dalbergia legume seed wing removing, and aims to solve the problems that in the prior art, wing removing efficiency is low, seed kernels are prone to damage, and wing removing and drying are disjointed. The device comprises a shell, a supporting frame and a falling opening are arranged at the bottom of the shell, and a bearing sleeve, a screening mechanism, a power mechanism and a drying mechanism are arranged in the shell. Arc-shaped screening blades, a second baffle and a second limiting block are arranged at the bottom of the screening cylinder; the power mechanism is composed of a motor, a first gear and a second gear, the drying mechanism comprises a drying cylinder, the cylinder wall is provided with an air groove, the outer side is provided with a heating pipe, and the bottom is provided with a first baffle and a first limiting block. The method comprises the steps that the heating pipe generates heat, the motor drives the rotating shaft, seeds enter the drying cylinder to rotate, primary wing removal and drying are synchronously conducted, then the seeds enter the screening cylinder through the first discharging opening, seed wings and seed kernels are rubbed and separated through the arc-shaped blades, and finally the separated seeds are discharged from the falling opening.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wing removal of Dalbergia genus legume seeds, in particular to a wing removal device for Dalbergia genus legume seeds and a method thereof. BACKGROUND

[0002] In the field of artificial breeding of Dalbergia plants, seed propagation is one of the core ways to realize large-scale seedling raising, and wing removal of legume seeds is a key pretreatment process before sowing. The seed wings of Dalbergia legume seeds are tightly combined with the seed kernels, and the texture of the seed wings is both tough and fibrous. The existing wing removal operation mostly relies on manual peeling or simple mechanical rubbing. The manual peeling method is extremely low in efficiency and cannot meet the demand for seed treatment quantity in large-scale seedling raising. Although the simple mechanical rubbing can improve the efficiency to a certain extent, it may cause damage to the seed kernels due to improper rubbing force control, thereby reducing the seed germination rate, and cannot simultaneously ensure the dryness of the seeds during the wing removal process.

[0003] Since the Dalbergia seeds need to maintain a specific dryness after wing removal to avoid mold and ensure germination activity, the wing removal and drying processes are independent in the existing technology. If the seeds cannot be timely transferred to the drying process after wing removal, they may absorb moisture due to environmental humidity, resulting in an increase in the water content of the seeds. This not only increases the energy consumption and time cost of the subsequent drying process, but also may cause a decrease in seed vitality due to fluctuations in water content. In addition, the existing wing removal equipment lacks special design for the wing structure of Dalbergia seeds, and cannot realize the coordinated control of wing removal efficiency, seed integrity, and dryness. This seriously restricts the large-scale and standardized development of Dalbergia plant seedling raising. Therefore, there is an urgent need for a technical solution that can simultaneously solve the problems of efficient wing removal and seed dryness guarantee. SUMMARY

[0004] The present application aims to provide a wing removal device for Dalbergia genus legume seeds to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a wing removal device for Dalbergia genus legume seeds, comprising a shell, a support frame fixedly connected to the bottom of the shell, a bearing sleeve fixedly connected to the middle of the inner bottom of the shell, a screening mechanism installed in the bearing sleeve, a power mechanism installed near the top and the outer side of the shell inside the screening mechanism, a drying mechanism installed on the top of the shell, and a drop opening formed on the outer side of the bearing sleeve at the bottom of the shell.

[0006] Preferably, the screening mechanism comprises a screening cylinder, the screening cylinder is rotationally connected in a bearing sleeve, a screening blade is fixedly connected to the inner bottom of the screening cylinder, a second baffle is placed on the bottom of the screening cylinder close to the outer side, a second swing rod is fixedly connected to the inner side of the second baffle, the second swing rod is rotationally connected to the bottom of the screening cylinder, a second limiting block is fixedly connected to the bottom of the screening cylinder close to the second baffle, a rotating shaft is fixedly connected to the middle of the inner bottom of the screening cylinder, a stabilizing frame is rotationally connected to the top of the rotating shaft, and the outer side of the stabilizing frame is fixedly connected to the inner wall of the shell.

[0007] Preferably, the bottom of the screening cylinder is fixedly connected with a fixed shaft, the fixed shaft is interference-fitted with a bearing, the screening cylinder is rotationally connected in the bearing sleeve through the fixed shaft and the bearing, the middle of the stabilizing frame is interference-fitted with a bearing, and the rotating shaft is rotationally connected to the middle of the stabilizing frame through the bearing.

[0008] Preferably, the inner bottom of the screening cylinder is densely provided with screening blades at equal intervals, and the two side edges of the screening blade are arc-shaped.

[0009] Preferably, the bottom of the screening cylinder is provided with a second discharge port corresponding to the second baffle, two second limiting blocks are provided, one of the second limiting blocks is close to the edge of the second baffle, and the other second limiting block is away from the first second limiting block.

[0010] Preferably, the power mechanism comprises a first gear, the first gear is fixedly connected to the rotating shaft on the top of the screening cylinder, a second gear is rotationally connected in a gear housing, and the bottom of the gear housing is fixedly connected with a motor.

[0011] Preferably, the outer ring of the first gear and the outer ring of the second gear are meshed with each other, and the motor is fixedly connected to the middle of the second gear through a mounting shaft.

[0012] Preferably, the drying mechanism comprises a drying cylinder, the drying cylinder is fixedly connected to the top of the rotating shaft, a first collecting seat is fixedly connected to the top of the drying cylinder in the shell, a bottom plate is fixedly connected to the bottom of the drying cylinder in the shell, a heating pipe is fixedly connected to the top of the drying cylinder outside the outer ring of the bottom plate, a first baffle is placed on the outer ring of the drying cylinder, a first swing rod is fixedly connected to the inner side of the first baffle, the first swing rod is rotationally connected to the top of the rotating shaft, and a first limiting block is fixedly connected to the bottom of the drying cylinder close to the first baffle.

[0013] Preferably, a circle of air grooves are formed in the outer wall of the drying cylinder at equal intervals, a first discharge port is formed in the bottom of the drying cylinder on one side beside the first baffle, two first limiting blocks are provided, one of the first limiting blocks is close to the edge of the first baffle, and the other first limiting block is away from the first first limiting block.

[0014] Another technical solution, a Dalbergia genus pod seed wing removal method, comprising the following steps:

[0015] S1, the heating pipe generates heat after being powered on, the motor drives the second gear to rotate, the meshing first gear drives the rotating shaft to rotate, at this time the heating pipe generates heat after being powered on, the heat is uniformly introduced into the cylinder through the air groove on the outer wall of the drying cylinder, and the seeds are put into the drying cylinder and are rotated with the rotating shaft to complete preliminary wing removal and simultaneously absorb heat to realize drying; the dried seeds enter the screening cylinder through the first discharge port;

[0016] S2, the screening cylinder rotates synchronously, and the arc-shaped screening blades in the screening cylinder form a gentle and continuous rubbing force on the seeds when the cylinder body rotates, and the seed wings and seed kernels are gradually separated in the rotating process.

[0017] Compared with the prior art, the present application provides a Dalbergia genus pod seed wing removal device and method, which has the following beneficial effects:

[0018] 1. The Dalbergia genus pod seed wing removal device and method, the screening blades with arc-shaped edges are arranged at equal intervals and densely on the bottom of the screening cylinder in the screening mechanism, the screening cylinder is driven to rotate by the power mechanism, the flexible rubbing force is formed on the seeds by the arc-shaped structure of the blades, the seed wings and seed kernels can be quickly separated, and seed kernel breakage caused by rigid friction is avoided; meanwhile, the rotation stability of the screening cylinder is ensured by the rotation cooperation of the fixed shaft and the bearing sleeve, the wing removal efficiency is further improved, and the limitations of manual or simple mechanical operation are overcome.

[0019] 2. The Dalbergia genus pod seed wing removal device and method, the drying mechanism and the screening mechanism are coaxially integrated, the air groove on the outer wall of the drying cylinder can uniformly penetrate the heat generated by the heating pipe into the cylinder, and the seeds are simultaneously subjected to drying treatment; the seeds are directly placed in a dry environment during wing removal, do not need to be subsequently transported, the moisture content caused by environmental humidity is avoided, the seed germination activity is ensured, and the additional energy consumption and time cost are reduced.

[0020] 3. The Dalbergia genus pod seed wing removal device and method, the device is designed in the light of the characteristics of the Dalbergia genus seed wing toughness and the need for dry storage, the heating pipe layout of the drying mechanism and the arc-shaped structure of the screening blades are optimized for the characteristics of the seeds, and the wing removal efficiency, seed kernel integrity and dry state are cooperatively controlled by the linkage of the drying and screening actions through the same rotating shaft, so that the demand for large-scale seedling raising is met. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 is a schematic view of the overall structure of the present application;

[0023] Figure 2 is a schematic view of the overall structure of the present application;

[0024] Figure 3 is a schematic view of the overall structure of the present application;

[0025] Figure 4 is a schematic view of the overall structure of the present application;

[0026] Figure 5 is a schematic view of the overall structure of the present application;

[0027] Figure 6 is a schematic view of the overall structure of the present application;

[0028] Figure 7 is a schematic view of the overall structure of the present application;

[0029] Figure 8 is a schematic view of the overall structure of the present application;

[0030] Figure 9 is a schematic view of the overall structure of the present application.

[0031] In the figure: 1, outer shell; 2, support frame; 3, power mechanism; 31, first gear; 32, second gear; 33, motor; 4, drying mechanism; 41, first collection seat; 42, first collection opening; 43, drying cylinder; 44, air groove; 45, first baffle; 451, first swing rod; 46, first discharge opening; 47, first limiting block; 48, bottom plate; 49, heating pipe; 5, gear housing; 6, screening mechanism; 61, second collection seat; 611, second collection opening; 62, stabilizing frame; 63, rotating shaft; 64, screening cylinder; 65, screening blade; 66, second discharge opening; 67, second baffle; 68, second limiting block; 69, second swing rod; 7, bearing sleeve; 8, drop opening. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0033] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The present application provides the following technical solutions:

[0035] Embodiment one

[0036] Please refer to Figures 1-7 A Dalbergia genus legume seed wing removal device, comprising a shell 1, a support frame 2 is fixedly connected to the bottom of the shell 1, a bearing sleeve 7 is fixedly connected to the inner bottom of the shell 1, a screening mechanism 6 is installed in the bearing sleeve 7, a power mechanism 3 is installed on the inner top of the shell 1, a drying mechanism 4 is installed on the inner top of the shell 1, and a falling opening 8 is formed in the bottom of the shell 1 outside the bearing sleeve 7.

[0037] The screening mechanism 6 comprises a screening cylinder 64, the screening cylinder 64 is rotatably connected in the bearing sleeve 7, a screening blade 65 is fixedly connected to the inner bottom of the screening cylinder 64, a second baffle 67 is placed on the bottom of the screening cylinder 64 close to the outer side, a second swing rod 69 is fixedly connected to the inner side of the second baffle 67, the second swing rod 69 is rotatably connected to the bottom of the screening cylinder 64, a second limiting block 68 is fixedly connected to the bottom of the screening cylinder 64 close to the second baffle 67, a rotating shaft 63 is fixedly connected to the inner bottom of the screening cylinder 64, a stabilizing frame 62 is rotatably connected to the top of the rotating shaft 63, and the outer side of the stabilizing frame 62 is fixedly connected to the inner wall of the shell 1.

[0038] The bottom of the screening cylinder 64 is fixedly connected with a fixed shaft, a bearing is interference-fitted on the fixed shaft, the screening cylinder 64 is rotatably connected in the bearing sleeve 7 through the fixed shaft and the bearing, the middle of the stabilizing frame 62 is interference-fitted with a bearing, and the rotating shaft 63 is rotatably connected to the middle of the stabilizing frame 62 through the bearing.

[0039] The inner bottom of the screening cylinder 64 is densely provided with screening blades 65 at equal intervals, and the two side edges of the screening blade 65 are arc-shaped.

[0040] The bottom of the screening cylinder 64 is provided with a second discharge port 66 corresponding to the second baffle 67, and the second limiting block 68 is provided with two blocks, one of which is close to the edge of the second baffle 67, and the other is away from the first block.

[0041] Embodiment two

[0042] Please refer to Figures 1-8And on the basis of embodiment one, the power mechanism 3 further comprises a first gear 31 fixedly connected to the rotating shaft 63 at the top of the screening cylinder 64, and a second gear 32 rotatably connected in the gear housing 5, and a motor 33 fixedly connected to the bottom of the gear housing 5.

[0043] The outer ring of the first gear 31 is engaged with the outer ring of the second gear 32, and the motor 33 is fixedly connected to the second gear 32 through the mounting shaft.

[0044] The drying mechanism 4 comprises a drying cylinder 43 fixedly connected to the top of the rotating shaft 63, a first collection seat 41 fixedly connected to the top of the drying cylinder 43 in the shell 1, a bottom plate 48 fixedly connected to the bottom of the drying cylinder 43 in the shell 1, a heating pipe 49 fixedly connected to the top of the drying cylinder 43, a first baffle 45 placed near the outer ring of the drying cylinder 43, a first swing rod 451 fixedly connected to the inner side of the first baffle 45, the first swing rod 451 being rotatably connected to the top of the rotating shaft 63, and a first limiting block 47 fixedly connected to the bottom of the drying cylinder 43 near the first baffle 45.

[0045] The outer wall of the drying cylinder 43 is provided with a circle of air grooves 44 at equal intervals, the bottom of the drying cylinder 43 is provided with a first discharge port 46 beside the first baffle 45 on one side, and the first limiting block 47 is provided with two, one of which is close to the edge of the first baffle 45, and the other is away from the first one.

[0046] Another technical solution is a method for removing wings from Dalbergia genus pod seeds, comprising the following steps:

[0047] S1, the heating pipe 49 generates heat after being powered on, the motor 33 drives the second gear 32 to rotate, the meshing first gear 31 drives the rotating shaft 63 to rotate, at this time the heating pipe 49 generates heat after being powered on, and the heat is evenly introduced into the cylinder through the air grooves 44 on the outer wall of the drying cylinder 43, the seeds are put into the drying cylinder 43, and in the process of rotating with the rotating shaft 63, the wings are removed and the heat is absorbed at the same time to realize drying; the dried seeds enter the screening cylinder 64 through the first discharge port 46, and this integrated design eliminates the interval between the wing removal and drying processes, not only reduces the risk of seed vitality decline caused by water content fluctuation, but also saves energy consumption and time for separate drying, realizes cost reduction and efficiency increase of the pretreatment process, and provides stable guarantee for the germination rate of the subsequent sowing link.

[0048] S2, the screening cylinder 64 rotates synchronously, the arc-shaped screening blades 65 in the screening cylinder 64 form a gentle and continuous rubbing force on the seeds when the cylinder body rotates, the seed wings and seed kernels gradually separate in the rotating process, and the arc-shaped edges avoid scratching the seed kernels; the dense arrangement of the screening blades 65 further expands the contact area with the seeds, improving the separation efficiency. This design not only breaks through the efficiency bottleneck of manual wing removal, but also solves the problem of easy damage to seed kernels by simple mechanical rubbing, while ensuring the integrity of the seeds, significantly improving the wing removal processing speed, and providing efficient pretreatment support for large-scale seedling raising.

[0049] In actual operation, when the device is in use:

[0050] After the heating pipe 49 is powered on to generate heat, the motor 33 drives the second gear 32 to rotate, and the meshing first gear 31 drives the rotating shaft 63 to rotate. At this time, the heating pipe 49 is powered on to generate heat, which is uniformly introduced into the cylinder through the air grooves 44 on the outer wall of the drying cylinder 43. When the rotating rod rotates clockwise, the first baffle 45 is shielded from the first discharge port 46 at the bottom of the drying cylinder 43 under the action of centrifugal force, so that the seeds in the drying cylinder 43 will not fall out before drying. After the seeds are put into the drying cylinder 43, they are rotated with the rotating shaft 63 to complete the initial wing removal and simultaneously absorb heat to achieve drying;

[0051] The two first limiting blocks 47 cooperate to prevent the first baffle 45 from being displaced too much when shielding the first discharge port 46 away from the first discharge port 46, thereby losing the purpose of shielding and opening the first discharge port 46.

[0052] At this time, when the rotating rod rotates counterclockwise, the second baffle 67 at the bottom of the screening cylinder 64 is shielded from the second discharge port 66 under the action of centrifugal force. At this time, the screening cylinder 64 rotates synchronously, and the arc-shaped screening blades 65 in the screening cylinder 64 form a gentle and continuous rubbing force on the seeds when the cylinder body rotates, and the seed wings and seed kernels gradually separate in the rotating process;

[0053] The two second limiting blocks 68 cooperate to prevent the second baffle 67 from being displaced too much when shielding the second discharge port 66 away from the second discharge port 66, thereby losing the purpose of shielding and opening the second discharge port 66.

[0054] The counterclockwise and clockwise rotation of the rotating rod will not cause the first baffle 45 and the second baffle 67 to shield the first discharge port 46 and the second discharge port 66 at the same time. The clockwise and counterclockwise rotation of the motor 33 can realize the transfer of the seeds in the drying cylinder 43 and the screening cylinder 64;

[0055] The first collecting port 42 of the first collecting seat 41 facilitates the seeds to drop into the drying cylinder 43, and the first gear 31 is provided with a through hole, at this time, the seeds drop into the screening cylinder 64 through the through hole under the cooperation of the second collecting port 611 of the second collecting seat 61;

[0056] When the seed wings and kernels in the screening cylinder 64 are gradually separated during the rotation, the motor 33 continues to drive the rotating rod to rotate clockwise, at this time, the second baffle 67 opens the second discharging port 66, at this time, the separated seeds are discharged through the drop port 8 at the bottom of the shell 1, at this time, a collecting groove is placed in advance at the bottom of the shell 1, so that the seeds can be collected.

[0057] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. A device for removing the wings of Dalbergia spp. pod seeds, comprising a shell (1), characterized in that: The bottom of the outer shell (1) is fixedly connected to a support frame (2), and the middle of the bottom of the outer shell (1) is fixedly connected to a bearing sleeve (7). A screening mechanism (6) is installed inside the bearing sleeve (7). A power mechanism (3) is installed inside the screening mechanism (6) near the top and outside the outer shell (1). A drying mechanism (4) is installed inside the top of the outer shell (1). A drop hole (8) is opened at the bottom of the outer shell (1) outside the bearing sleeve (7).

2. The device for removing the wings from Dalbergia odorifera pods according to claim 1, characterized in that: The screening mechanism (6) includes a screening cylinder (64), which is rotatably connected to a bearing sleeve (7). Screening blades (65) are fixedly connected to the bottom of the screening cylinder (64). A second baffle (67) is placed near the outer side of the bottom of the screening cylinder (64). A second swing rod (69) is fixedly connected to the inner side of the second baffle (67). The second swing rod (69) is rotatably connected to the bottom of the screening cylinder (64). A second limiting block (68) is fixedly connected to the bottom of the screening cylinder (64) near the second baffle (67). A rotating shaft (63) is fixedly connected to the middle of the bottom of the screening cylinder (64). A stabilizing frame (62) is rotatably connected to the top of the rotating shaft (63). The outer side of the stabilizing frame (62) is fixedly connected to the inner wall of the outer shell (1).

3. The device for removing the wings of Dalbergia odorifera pod seeds according to claim 2, characterized in that: The bottom of the screening cylinder (64) is fixedly connected to a fixed shaft, and a bearing is interference-fitted on the fixed shaft. The screening cylinder (64) is rotatably connected to the bearing sleeve (7) through the fixed shaft and the bearing. The middle of the stabilizing frame (62) is interference-fitted with a bearing, and the rotating shaft (63) is rotatably connected to the middle of the stabilizing frame (62) through the bearing.

4. The device for removing the wings of Dalbergia odorifera pod seeds according to claim 2, characterized in that: The screening cylinder (64) has screening blades (65) arranged densely at equal intervals at the bottom, and the two sides of the screening blades (65) are arc-shaped.

5. The device for removing the wings from Dalbergia odorifera pods according to claim 2, characterized in that: The bottom of the screening cylinder (64) is provided with a second discharge port (66) corresponding to the second baffle (67). There are two second limiting blocks (68), one of which is close to the edge of the second baffle (67), and the other is far away from the first block.

6. The device for removing the wings from Dalbergia odorifera pods according to claim 1, characterized in that: The power mechanism (3) includes a first gear (31), which is fixedly connected to the rotating shaft (63) at the top of the screening cylinder (64), and a second gear (32) is rotatably connected to the gear housing (5). A motor (33) is fixedly connected to the bottom of the gear housing (5).

7. The device for removing the wings of Dalbergia odorifera pod seeds according to claim 6, characterized in that: The outer ring of the first gear (31) meshes with the outer ring of the second gear (32), and the motor (33) is fixedly connected to the second gear (32) through a mounting shaft.

8. The device for removing the wings of Dalbergia odorifera pod seeds according to claim 1, characterized in that: The drying mechanism (4) includes a drying cylinder (43), which is fixedly connected to the top of the rotating shaft (63). A first collection seat (41) is fixedly connected to the top of the drying cylinder (43) inside the outer shell (1). A bottom plate (48) is fixedly connected to the bottom of the drying cylinder (43) inside the outer shell (1). A heating tube (49) is fixedly connected to the top of the bottom plate (48) on the outer ring of the drying cylinder (43). A first baffle (45) is placed near the outer ring of the drying cylinder (43). A first swing rod (451) is fixedly connected to the inner side of the first baffle (45). The first swing rod (451) is rotatably connected to the rotating shaft (63) near the top. A first limiting block (47) is fixedly connected to the bottom of the drying cylinder (43) near the first baffle (45).

9. A device for removing the wings of Dalbergia odorifera pod seeds according to claim 8, characterized in that: The outer wall of the drying cylinder (43) is provided with an evenly spaced ring of air grooves (44). The bottom of the drying cylinder (43) is provided with a first discharge port (46) on one side next to the first baffle (45). There are two first limiting blocks (47), one of which is close to the edge of the first baffle (45), and the other is far away from the first one.

10. A method for removing the wings from Dalbergia odorifera pod seeds according to any one of claims 1-9, characterized in that, Includes the following steps: S1. When the heating tube (49) is powered on, it generates heat. The motor (33) drives the second gear (32) to rotate. The meshing first gear (31) drives the rotating shaft (63) to rotate. At this time, the heating tube (49) generates heat after being powered on. The heat is evenly introduced into the drying cylinder through the air groove (44) on the outer wall of the drying cylinder (43). After the seeds are put into the drying cylinder (43), they complete the initial dewing while rotating with the rotating shaft (63) and absorb heat to achieve drying. The dried seeds enter the screening cylinder (64) through the first discharge port (46). S2. The sieve cylinder (64) rotates synchronously. When the arc-shaped sieve blades (65) inside the sieve cylinder (64) rotate with the cylinder body, they form a gentle and continuous kneading force on the seeds, and the seed wings and kernels gradually separate during the rotation.

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