A seed cutting tool and a seed cutting machine

Abstract

The application is suitable for the technical field of betel nut processing, and provides a seed cutting tool and a seed cutting machine. The seed cutting tool provided by the application is used to place betel nuts on a bearing surface, and two clamping block arms are moved close to each other, and the first clamping plate and the second clamping plate are moved close to each other to gradually move the clamping block close to the betel nuts on the bearing surface to clamp the betel nuts, after clamping, the two clamping block arms stop moving, and the cutter between the two first clamping plates and on the symmetry plane of the two first clamping plates is moved close to the pad to cut the betel nuts, then the cutter is retracted and the two clamping block arms are moved away from each other to complete the cutting process of the betel nuts. The seed cutting tool provided by the application is provided with a clamping unit, so that the size of the betel nuts can be adapted, and the cutter provided on the symmetry plane of the two first clamping plates can clamp the betel nuts and cut the betel nuts from the middle of the betel nuts when facing betel nuts of various sizes, thereby reducing the rate of defective products and production cost.

Description

Technical Field

[0001] This application belongs to the field of areca nut processing technology, and in particular relates to a seed cutting tool and a seed cutting machine. Background Technology

[0002] Areca nut is the dried, mature seed of the areca palm (Areca catechu), a plant in the palm family. It is flattened spherical or conical in shape and is commonly known as areca seed. Mature fruits are harvested from late spring to early autumn, boiled in water, dried, the pericarp is removed, and the seeds are extracted and dried.

[0003] After drying and other preliminary processes, areca nuts need to be cut in half for further processing. Existing areca nut cutting equipment often uses a mold that is similar in size to the areca nuts. By setting gaps in the mold to avoid cutting blades, the areca nuts are cut by inserting the blades into the gaps. However, if the areca nuts are too small, they are prone to displacement during cutting, resulting in incomplete cutting and defective products. When the areca nuts are too large, they cannot be placed in the mold, requiring the use of different mold sizes for screening the oversized areca nuts, which increases costs. Utility Model Content

[0004] This application provides a seed cutting fixture and a seed cutting machine, which can solve the problems of existing seed cutting fixtures using a mold that is similar in size to the areca nut seeds. These problems include the inability to cut areca nut seeds that are too small, resulting in defective products, and the inability to fit areca nut seeds that are too large, leading to increased costs.

[0005] This application provides a seed cutting fixture and a seed cutting machine, including a pad, a clamping unit, and a cutting unit; the top surface of the pad is a bearing surface for bearing areca seeds; the clamping unit is used to clamp the areca seeds on the bearing surface and is disposed on one side of the pad with the bearing surface; the cutting unit is used to cut the areca seeds clamped by the clamping unit and is disposed on one side of the pad with the bearing surface. The clamping unit includes two clamping arms positioned opposite each other on both sides above the pad, and the two clamping arms are symmetrically arranged on both sides of the pad. Each clamping arm includes a vertically arranged first clamping plate and a second clamping plate located at the bottom of the first clamping plate. A clamping block is provided on the second clamping plate. The first clamping plate and the second clamping plate are arranged perpendicularly. When the two second clamping plates approach each other, the two clamping blocks gradually approach and clamp the areca nut seeds located on the bearing surface. When the ends of the two second clamping plates away from the first clamping plate are pressed together, the two clamping arms form a "U" shaped structure. The cutting unit includes a cutting blade, which is arranged between the two first clamping plates and located on the symmetrical plane of the two first clamping plates. The cutting blade can perform reciprocating linear motion relative to the pad, moving closer to and further away from it.

[0006] Optionally, the end of the second clamping plate away from the first clamping plate has a first guide slope, and the first guide slope is located at the end of the second clamping plate away from the pad block. The bottom end of the first guide slope, the bottom surface of the second clamping plate, and the bearing surface are coplanar. During the process of the two second clamping plates coming closer to each other, the areca nut seeds will be pressed and held by the two clamping blocks under the action of the first guide slope.

[0007] Optionally, a clamping unit is provided on the first clamping plate. The clamping unit includes an L-shaped clamping block located above the clamping block. The L-shaped clamping block can gradually clamp the areca nut seeds when the two second clamping plates approach each other. The L-shaped clamping block has a vertical part and a horizontal part located at one end of the vertical part. The L-shaped clamping block is located above the clamping block and the horizontal part is located at the bottom end of the vertical part. The horizontal part is located on the side of the vertical part away from the first clamping plate. The distance between the end of the L-shaped clamping block away from the first clamping plate and the first clamping plate is greater than the distance between the end of the clamping block away from the first clamping plate and the first clamping plate.

[0008] Optionally, the L-shaped clamping block has a second guide slope, which is located at the end of the horizontal portion away from the vertical portion, and at the end of the horizontal portion away from the first clamping plate.

[0009] Optionally, the clamping unit also includes a guide and pressurizing assembly, which includes a guide rail, a slider, and an elastic element. The guide rail is disposed on the first clamping plate and located on the side of the first clamping plate close to the second clamping plate. The length direction of the guide rail is consistent with the length direction of the first clamping plate. The slider engages with the guide rail and can move linearly along the guide rail. The vertical part of the L-shaped clamping block is connected to the slider. A protrusion is provided on the side of the first clamping plate close to the second clamping plate. The protrusion is located at the end of the first clamping plate away from the second clamping plate. The two ends of the elastic element are respectively connected to the top of the protrusion and the top of the vertical part. When the two ends of the elastic element are respectively connected to the top of the protrusion and the top of the vertical part, the elastic element is in a compressed state.

[0010] Optionally, the guide pressurization assembly also includes a guide rod, one end of which is connected to the protrusion, and the other end extends into the vertical part. The length direction of the guide rod is consistent with the length direction of the guide rail.

[0011] Optionally, the clamping unit also includes a first linear drive device connected to the two first clamping plates respectively, the first linear drive device being used to drive the first clamping plates closer to / away from the pad to clamp / release the areca nuts.

[0012] Optionally, the cutting unit also includes a second linear drive device connected to one end of the cutting blade, the second linear drive device being used to drive the cutting blade closer to / away from the pad to cut the areca nut seeds.

[0013] Optionally, it also includes a sweeping unit, which includes a rotary drive device and a sweeping block connected to the rotary drive device. The bottom surface of the sweeping block is on the same horizontal plane as the bearing surface. The sweeping block can sweep across the bearing surface under the drive of the rotary drive device to sweep the cut areca nuts off the pad.

[0014] One embodiment of this application also provides a seed cutter, including the seed cutting fixture described above.

[0015] The betel nut cutting fixture provided in this application, when in use, places the betel nut seeds on the bearing surface of the pad block. By bringing the two clamping arms together, and the first and second clamping plates moving closer together, the clamping blocks gradually approach each other to clamp the betel nut seeds on the bearing surface. After clamping, the two clamping arms stop moving, and the cutter located between the two first clamping plates and on the symmetrical plane of the two first clamping plates is pushed closer to the pad block to cut the betel nut seeds. Then, the cutter is retracted and the two clamping arms are moved away from each other, thus completing the betel nut seed cutting process. The betel nut cutting fixture provided in this application, by setting up a clamping unit, can adapt to the size of the betel nut. By setting the cutter on the symmetrical plane of the two first clamping plates, it can clamp the betel nut seeds of various sizes and cut them from the middle, reducing the defect rate and production costs.

[0016] The seed cutter provided in this application includes the aforementioned seed cutting fixture, which can adapt to the cutting needs of areca seeds of different sizes, resulting in a high yield and low production cost.

[0017] Other beneficial effects of this application will be described in detail in the following detailed description section. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a seed-cutting fixture provided in one embodiment of this application; Figure 2 for Figure 1 A magnified structural diagram of part A in the middle; Figure 3 A schematic diagram of the overall structure of a seed cutting fixture provided in an embodiment of this application after incorporating a material sweeping unit; Figure 4 This is a schematic diagram of the overall structure of a seed cutter provided in an embodiment of this application.

[0020] [Explanation of Labels in the Attached Image] 1. Pad block; 11. Bearing surface; 12. Sloping surface; 2. Clamping unit; 21. Clamping arm; 211. First clamping plate; 212. Second clamping plate; 2121. First guide ramp; 213. Clamping block; 22. Pressing unit; 221. L-shaped pressing block; 2211. Vertical part; 2212. Horizontal part; 2213. Second guide ramp; 222. Guide pressing assembly; 2221. Guide rail; 2222. Slider; 2223. Elastic element; 2224. Guide rod; 2225. Protrusion; 3. Cutting unit; 31. Cutting blade; 32. Second linear drive device; 4. Sweeping unit; 41. Rotary drive device; 42. Sweeping block; 100. Seed cutting fixture; 110. Seed cutter. Detailed Implementation

[0021] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0022] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or units, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, units and / or collections thereof.

[0023] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0024] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or component as an example in the figure. It should be understood that the reference numerals are also applicable to other identical parts or components.

[0028] Currently, the existing seed-cutting equipment uses a mold that is similar in size to the areca nut seeds. When the areca nut seeds are too small, they cannot be cut properly, resulting in defective products. When the areca nut seeds are too large, they cannot be put into the mold, leading to increased costs.

[0029] To address the aforementioned problems, according to one aspect of this application, one embodiment provides a seed-cutting fixture, such as... Figures 1 to 3As shown, the device includes a pad 1, a clamping unit 2, and a cutting unit 3. The top surface of the pad 1 is a bearing surface 11, which is used to support areca seeds. The clamping unit 2 is used to clamp the areca seeds on the bearing surface 11, and the clamping unit 2 is located on the side of the pad 1 with the bearing surface 11. The cutting unit 3 is used to cut the areca seeds held by the clamping unit 2, and the cutting unit 3 is located on the side of the pad 1 with the bearing surface 11. The clamping unit 2 includes two clamping arms 21 that are arranged opposite each other on both sides above the pad 1, and the two clamping arms 21 are symmetrically arranged on both sides of the pad 1. The clamping arm 21 includes a vertically arranged first clamping plate 211 and a clamping plate 211. The second clamping plate 212 at the bottom of the plate 211 is provided with clamping blocks 213. The first clamping plate 211 and the second clamping plate 212 are arranged perpendicularly. When the two second clamping plates 212 approach each other, the two clamping blocks 213 gradually approach and clamp the areca nut seeds located on the bearing surface 11. When the ends of the two second clamping plates 212 away from the first clamping plate 211 are in contact with each other, the two clamping block arms 21 form a "U" shaped structure. The cutting unit 3 includes a cutting blade 31, which is arranged between the two first clamping plates 211 and located on the symmetrical plane of the two first clamping plates 211. The cutting blade 31 can perform reciprocating linear motion relative to the pad block 1.

[0030] When using the betel nut cutting fixture 100 provided in this application, the betel nut seeds are placed on the bearing surface 11 of the pad block 1. By bringing the two clamping arms 21 together, the first clamping plate 211 and the second clamping plate 212 move closer to each other, so that the clamping blocks 213 gradually move closer to clamp the betel nut seeds located on the bearing surface 11. After clamping, the two clamping arms 21 stop moving, and the cutter 31 located between the two first clamping plates 211 and on the symmetrical plane of the two first clamping plates 211 is pushed closer to the pad block 1 to cut the betel nut seeds. Then the cutter 31 is retracted and the two clamping arms 21 are moved away from each other to complete the betel nut cutting process. The betel nut cutting fixture 100 provided in this application can adapt to the size of the betel nut by setting the clamping unit 2. By setting the cutter 31 on the symmetrical plane of the two first clamping plates 211, the betel nut seeds of various sizes can be clamped and cut from the middle of the betel nut seeds, reducing the defect rate and production cost.

[0031] In some embodiments of this application, such as Figures 1 to 3 As shown, the clamping block 213 is a rubber block with anti-slip texture on its surface.

[0032] In some embodiments of this application, the bearing surface 11 of the pad 1 has sloping surfaces 12 on both sides, and the two sloping surfaces 12 are respectively facing the adjacent clamping arm 21, so that when the clamping arm 21 is released, the areca nut seeds will automatically slide down the sloping surface 12 under the action of gravity. The bottom of both sides of the pad 1 can be provided with a storage frame or a conveying device to facilitate collection or further processing.

[0033] In some embodiments of this application, such as Figures 1 to 3 As shown, the end of the second clamping plate 212 away from the first clamping plate 211 has a first guide slope 2121, and the first guide slope 2121 is located at the end of the second clamping plate 212 away from the pad block 1. The bottom end of the first guide slope 2121, the bottom surface of the second clamping plate 212 and the bearing surface 11 are coplanar. During the process of the two second clamping plates 212 approaching each other, the areca nut seeds will be pressed and held by the two clamping blocks 213 under the action of the first guide slope 2121.

[0034] As the two second clamping plates 212 gradually approach each other during the movement, the areca nut comes into contact with the first guide inclined surface 2121 and is pushed upward, causing the areca nut to gradually rise. At the same time, the clamping blocks 213 continue to squeeze inward, so that the areca nut is clamped between the two clamping blocks 213, effectively avoiding cutting deviation.

[0035] In some embodiments of this application, such as Figures 1 to 3 As shown, a clamping unit 22 is provided on the first clamping plate 211. The clamping unit 22 includes an L-shaped clamping block 221 located above the clamping block 213. The L-shaped clamping block 221 can gradually clamp the areca nut seeds when the two second clamping plates 212 approach each other. The L-shaped clamping block 221 has a vertical part 2211 and a horizontal part 2212 located at one end of the vertical part 2211. The L-shaped clamping block 221 is located above the clamping block 213 and the horizontal part 2212 is located at the bottom end of the vertical part 2211. The horizontal part 2212 is located on the side of the vertical part 2211 away from the first clamping plate 211. The distance between the end of the L-shaped clamping block 221 away from the first clamping plate 211 and the first clamping plate 211 is greater than the distance between the end of the clamping block 213 away from the first clamping plate 211 and the first clamping plate 211.

[0036] As the two second clamping plates 212 approach each other, the horizontal portion 2212 of the L-shaped clamping block 221 gradually presses down on the areca nut seed along with the movement of the clamping block 213. Utilizing the height difference in their structure, pre-pressing and positioning are achieved, preventing the areca nut seed from shifting during clamping. The vertical portion 2211 and the horizontal portion 2212 work together to provide downward pressure while clamping, ensuring that the centerline of the areca nut seed coincides with the movement trajectory of the cutter 31, further improving cutting accuracy. As the second clamping plates 212 continue to move closer, the horizontal portion 2212 of the L-shaped clamping block 221 is completely pressed down onto the surface of the areca nut seed, firmly confining it between the clamping block 213 and the clamping block. At this point, the clamping block 213 and the L-shaped clamping block 221 together form a surrounding limiting structure, effectively suppressing deviation during cutting.

[0037] In some embodiments of this application, such as Figures 1 to 3As shown, the L-shaped clamping block 221 has a second guide slope 2213, which is located at the end of the horizontal portion 2212 away from the vertical portion 2211, and at the end of the horizontal portion 2212 away from the first clamping plate 211.

[0038] When the two second clamping plates 212 come close to each other, the second guide slope 2213 of the L-shaped pressing block 221 first contacts the upper part of the areca seed. During the contact process, the slope guides the downward pressure to avoid the areca seed from cracking or shifting due to rigid impact.

[0039] In some embodiments of this application, such as Figures 1 to 3 As shown, the clamping unit 22 also includes a guide and pressurizing assembly 222. The guide and pressurizing assembly 222 includes a guide rail 2221, a slider 2222, and an elastic element 2223. The guide rail 2221 is disposed on the first clamping plate 211 and located on the side of the first clamping plate 211 near the second clamping plate 212. The length direction of the guide rail 2221 is consistent with the length direction of the first clamping plate 211. The slider 2222 engages with the guide rail 2221 and can move linearly along the guide rail 2221, forming an L-shaped clamping mechanism. The vertical portion 2211 of block 221 is connected to the slider 2222. A protrusion 2225 is provided on the side of the first clamping plate 211 near the second clamping plate 212. The protrusion 2225 is located at the end of the first clamping plate 211 away from the second clamping plate 212. The two ends of the elastic member 2223 are respectively connected to the protrusion 2225 and the top of the vertical portion 2211. When the two ends of the elastic member 2223 are respectively connected to the protrusion 2225 and the top of the vertical portion 2211, the elastic member 2223 is in a compressed state.

[0040] The aforementioned slider 2222 can slide smoothly along the guide rail 2221, driving the L-shaped clamping block 221 to move synchronously, ensuring a stable and continuous pressing process. The elastic element 2223 provides a continuous downward preload under compression, ensuring that the L-shaped clamping block 221 always has a downward movement tendency. When the L-shaped clamping block 221 clamps the areca nut, the elastic element 2223 can provide buffering and adaptive adjustment capabilities, allowing the L-shaped clamping block 221 to have a certain displacement space when contacting the areca nut, avoiding damage to the areca nut caused by rigid clamping.

[0041] In some embodiments of this application, such as Figures 1 to 3 As shown, the guide pressurization assembly 222 also includes a guide rod 2224. One end of the guide rod 2224 is connected to the protrusion 2225, and the other end extends into the vertical part 2211. The length direction of the guide rod 2224 is consistent with the length direction of the guide rail 2221.

[0042] One end of the guide rod 2224 is connected to the protrusion 2225, and the other end extends into the vertical part 2211, with its length direction consistent with the length direction of the guide rail 2221. The guide rod 2224 slides in conjunction with the vertical part 2211, effectively constraining the movement trajectory of the L-shaped clamping block 221, preventing it from deflecting or jamming during the pressing process, and further improving the clamping stability.

[0043] In some specific embodiments, such as Figures 1 to 3 As shown, the elastic element 2223 is a spring. The elastic element 2223 is sleeved on the guide rod 2224. One end of the elastic element 2223 abuts against the protrusion 2225, and the other end abuts against the top of the vertical part 2211, providing stable elastic force in the compressed state.

[0044] In some embodiments of this application, such as Figures 1 to 3 As shown, the clamping unit 2 also includes a first linear drive device (not shown in the figure) connected to the two first clamping plates 211 respectively. The first linear drive device is used to drive the first clamping plates 211 to move closer to / away from the pad block 1 to clamp / release the areca nuts.

[0045] The aforementioned first linear drive device is used to drive the first clamping plate 211 to move closer to or away from the pad block 1, thereby achieving the clamping and releasing action of the areca nut seeds.

[0046] It is understood that the aforementioned first linear drive device can be installed on the frame of the seed cutter 110, and its drive end is connected to the first clamping plate 211. The drive end can perform reciprocating telescopic motion to drive the first clamping plate 211 to move closer to / away from the pad block 1, clamping / releasing the areca nuts.

[0047] For example, the first linear drive device described above can be a cylinder, a hydraulic cylinder, or an electric push rod.

[0048] In some embodiments of this application, such as Figures 1 to 3 As shown, the cutting unit 3 also includes a second linear drive device 32 connected to one end of the cutting blade 31. The second linear drive device 32 is used to drive the cutting blade 31 to move closer to / away from the pad block 1 to cut the areca nut seeds.

[0049] The aforementioned second linear drive device 32 is used to drive the cutter 31 to move closer to or away from the pad 1, so as to achieve the cutting action of the areca nut seeds.

[0050] It is understood that the aforementioned second linear drive device 32 can be mounted on the frame, and its drive end is connected to the cutter 31. By reciprocating extension and retraction, it drives the cutter 31 to move along the guide rail 2221, accurately cutting into the betel nut seed cutting position.

[0051] For example, the second linear drive device 32 may be a pneumatic push rod or a servo electric cylinder.

[0052] In some embodiments of this application, such as Figures 1 to 3 As shown, it also includes a sweeping unit 4, which includes a rotary drive device 41 and a sweeping block 42 connected to the rotary drive device 41. The bottom surface of the sweeping block 42 is on the same horizontal plane as the bearing surface 11. The sweeping block 42 can sweep across the bearing surface 11 under the drive of the rotary drive device 41 to sweep the cut areca nuts off the pad block 1.

[0053] It is understood that the aforementioned rotary drive device 41 can be mounted on the frame of the seed cutter 110. Specifically, the rotary drive device 41 can be a servo motor with forward and reverse rotation functions to drive the sweeping block 42 to rotate back and forth to achieve sweeping.

[0054] After the areca nuts are cut, the two clamping arms 21 move away from each other, and the cutter 31 retracts to the initial position. At this time, the rotary drive device 41 is activated, which drives the sweeping block 42 to rotate out from the stationary position. Its bottom surface slides over the bearing surface 11, pushing the cut areca nuts that have not fallen from the sides of the pad block 1 out of the pad block 1 to achieve material feeding.

[0055] According to another aspect of this application, one embodiment of this application also provides a seed cutter 110, such as... Figure 4 As shown, the seed cutter includes the aforementioned seed cutting fixture 100.

[0056] It is understood that the aforementioned seed cutter 110 has a controller (such as a PLC, programmable logic controller) (not shown in the figure), a vision sensing device (such as an industrial camera) (not shown in the figure) and a feeding device (not shown in the figure) electrically connected to the controller. The output end of the vision sensing device faces the bearing surface of the pad and transmits data to the controller to collect the position information of the areca nuts on the pad. The feeding device is used to place the areca nuts on the bearing surface. The first linear drive device, the second linear drive device, and the rotary drive device are all electrically connected to the controller. The controller can analyze the image according to a preset algorithm and dynamically adjust the action timing and stroke of the first linear drive device and the second linear drive device to ensure accurate clamping of the areca nuts and precise cutting position. When the seed cutting is completed, the rotary drive device is controlled to start to perform a sweeping action to achieve automatic unloading.

[0057] It is understandable that the controller receives data transmitted by the vision sensing device and controls the feeding device, the first linear drive device, the second linear drive device, and the rotary drive device to perform corresponding actions based on this data, which is a function of the controller itself.

[0058] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principles described in this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A seed cutting fixture, characterized in that, The device includes a pad (1), a clamping unit (2), and a cutting unit (3); the top surface of the pad (1) is a bearing surface (11), which is used to bear areca seeds; the clamping unit (2) is used to clamp the areca seeds on the bearing surface (11), and the clamping unit (2) is disposed on the side of the pad (1) with the bearing surface (11); the cutting unit (3) is used to cut the areca seeds clamped by the clamping unit (2), and the cutting unit (3) is disposed on the side of the pad (1) with the bearing surface (11); The clamping unit (2) includes two clamping arms (21) arranged opposite to each other on both sides above the pad (1), and the two clamping arms (21) are symmetrically arranged on both sides of the pad (1). Each clamping arm (21) includes a vertically arranged first clamping plate (211) and a second clamping plate (212) arranged at the bottom end of the first clamping plate (211). A clamping block (213) is provided on the second clamping plate (212). The first clamping plate (211) and the second clamping plate (212) are arranged perpendicularly, and the two second clamping plates (212) are close to each other. When the two clamping blocks (213) gradually approach and clamp the areca nut seeds on the bearing surface (11), and when the ends of the two second clamping plates (212) away from the first clamping plate (211) are in contact with each other, the two clamping block arms (21) form a "U" shape structure; the cutting unit (3) includes a cutting blade (31), which is disposed between the two first clamping plates (211) and located on the symmetrical plane of the two first clamping plates (211). The cutting blade (31) can perform reciprocating linear motion relative to the pad (1) towards / away from it.

2. The seed cutting fixture according to claim 1, characterized in that, The second clamping plate (212) has a first guide slope (2121) at the end away from the first clamping plate (211), and the first guide slope (2121) is located at the end of the second clamping plate (212) away from the pad (1). The bottom end of the first guide slope (2121), the bottom surface of the second clamping plate (212), and the bearing surface (11) are coplanar. During the process of the two second clamping plates (212) approaching each other, the areca nut seeds will be pressed and held by the two clamping blocks (213) under the action of the first guide slope (2121).

3. The seed cutting fixture according to claim 2, characterized in that, A clamping unit (22) is provided on the first clamping plate (211). The clamping unit (22) includes an L-shaped clamping block (221) located above the clamping block (213). The L-shaped clamping block (221) can gradually clamp the areca nut seeds when the two second clamping plates (212) approach each other. The L-shaped clamping block (221) has a vertical part (2211) and a horizontal part (2212) located at one end of the vertical part (2211). The L-shaped clamping block (221) is located on the clamping block (213). Above the clamping block (213) and the horizontal portion (2212) is located at the bottom end of the vertical portion (2211), and the horizontal portion (2212) is located on the side of the vertical portion (2211) away from the first clamping plate (211), the distance between the end of the L-shaped clamping block (221) away from the first clamping plate (211) and the first clamping plate (211) is greater than the distance between the end of the clamping block (213) away from the first clamping plate (211) and the first clamping plate (211).

4. The seed cutting fixture according to claim 3, characterized in that, The L-shaped clamping block (221) has a second guide slope (2213), which is located at the end of the horizontal portion (2212) away from the vertical portion (2211) and at the end of the horizontal portion (2212) away from the first clamping plate (211).

5. The seed-cutting fixture according to any one of claims 3-4, characterized in that, The clamping unit (22) further includes a guide and pressurizing assembly (222), which includes a guide rail (2221), a slider (2222), and an elastic element (2223). The guide rail (2221) is disposed on the first clamping plate (211) and located on the side of the first clamping plate (211) near the second clamping plate (212). The length direction of the guide rail (2221) is consistent with the length direction of the first clamping plate (211). The slider (2222) engages with the guide rail (2221) and can move linearly along the guide rail (2221). The L-shaped clamping block (2 The vertical part (2211) of 21) is connected to the slider (2222). The first clamping plate (211) is provided with a protrusion (2225) on the side near the second clamping plate (212). The protrusion (2225) is located at the end of the first clamping plate (211) away from the second clamping plate (212). The two ends of the elastic member (2223) are respectively connected to the top of the protrusion (2225) and the top of the vertical part (2211). When the two ends of the elastic member (2223) are respectively connected to the top of the protrusion (2225) and the top of the vertical part (2211), the elastic member (2223) is in a compressed state.

6. The seed cutting fixture according to claim 5, characterized in that, The guide pressurization assembly (222) also includes a guide rod (2224), one end of which is connected to the protrusion (2225), and the other end extends into the vertical part (2211). The length direction of the guide rod (2224) is consistent with the length direction of the guide rail (2221).

7. The seed cutting fixture according to claim 1, characterized in that, The clamping unit (2) further includes a first linear drive device connected to the two first clamping plates (211) respectively. The first linear drive device is used to drive the first clamping plates (211) to move closer to / away from the pad (1) to clamp / release the areca nut.

8. The seed cutting fixture according to claim 1, characterized in that, The cutting unit (3) further includes a second linear drive device (32) connected to one end of the cutting blade (31), the second linear drive device (32) being used to drive the cutting blade (31) to move closer to / away from the pad (1) to cut the areca nut seeds.

9. The seed cutting fixture according to claim 1, characterized in that, It also includes a sweeping unit (4), which includes a rotary drive device (41) and a sweeping block (42) connected to the rotary drive device (41). The bottom surface of the sweeping block (42) is on the same horizontal plane as the bearing surface (11). The sweeping block (42) can sweep across the bearing surface (11) under the drive of the rotary acquisition device to sweep the cut areca nuts off the pad (1).

10. A seed cutter (110), characterized in that, Includes the seed cutting fixture (100) as described in any one of claims 1-9.

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