Floating type kernel removing mechanism of longan kernel removing machine

Abstract

The invention provides a floating type kernel removing mechanism of a longan kernel removing machine, which is assembled by a two-dimensional pneumatic sliding table, a vertical sliding table and a kernel removing pincer assembly; the vertical sliding table is connected to the vertical sliding table through the vertical moving sliding block of the two-dimensional pneumatic sliding table, and the vertical sliding table is connected to the kernel removing pincer assembly which can move up and down through a linear bearing sliding block; a tension spring is connected between the bracket upper support plate of the kernel removing pincer assembly and the lower pull rod of the vertical sliding table; the kernel removing pincer assembly is installed with two downward extending kernel removing pincers, and the cutter head of the kernel removing pincer is controlled by a kernel removing pneumatic cylinder. Since the kernel removing pincer assembly of the kernel removing mechanism can be elastically floated up and down, no matter what size of longan fruit is encountered, the cutter head can be ensured to be inserted to a suitable depth, and the kernel can be automatically clamped, so that the obtained fruit flesh is more complete in appearance, and in addition, the kernel removing mechanism is only provided with two intermittent type kernel removing pincers which move left and right reciprocally, the kernel is removed while the kernel is released, the number of kernel removing pincers is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to a component of a longan pitting machine, specifically a floating pitting mechanism for a longan pitting machine, belonging to the field of food processing machinery technology. Background Technology

[0002] In order to obtain lantern-shaped longan pulp with better appearance and higher price, our company's prior Chinese patent CN202211187314.8 discloses a single-drive mechanical linkage longan pitting machine, which is equipped with a main power mechanism, a conveying mechanism, a pitting mechanism, a pitting mechanism, a linkage mechanism, and a shell-and-pulp-topping mechanism on the frame; the conveying mechanism drives the conveying plate to move through two conveying chain rings, and the conveying plate is provided with positioning holes and fruit-supporting holes, with fruit-supporting frames embedded in the fruit-supporting holes; the pitting mechanism is equipped with multiple pitting clamps evenly distributed along the circumference of the turntable. When using the device, place the longan fruit with the stem facing upwards on the fruit holder of the feeding plate. When the feeding plate moves to the pitting station, the split blades of the pitting mechanism's pitting clamps penetrate the longan stem from above to a certain depth before opening. The opening blades separate the fruit flesh connected to the stem, achieving complete separation of the stem from the fruit flesh. Then, the fine needle rod of the step-top rod of the pitting mechanism pushes the longan seed upwards into the shell and flesh of the longan from below the fruit holder, pushing the longan seed upwards into the blades of the pitting clamps. When the blades of the pitting clamps close and return to their original position, the ejected longan seed can be clamped in the blades and removed. The device then moves to the pit release station to release the longan seed. The pitted longan in the fruit holder then moves with the feeding plate to the shell and flesh discharge station to push out the longan shell and flesh together, and then is sent to the next process for shell and flesh separation.

[0003] In the above technical solutions, the cooperation between the pitting clamps of the pitting mechanism and the fruit-supporting frame of the fruit-supporting hole, as well as the overall design of the pitting mechanism, still have certain shortcomings, mainly reflected in:

[0004] (1) When the pitting pliers insert the blade downwards into the longan, the distance the blade extends downwards is also fixed because the fruit support frame is fixed. When encountering longan fruits of different sizes, the depth of insertion into the longan stem varies. When the blade does not penetrate the stem deeply enough, it does not completely separate the stem from the fruit flesh. After the blade opens, a lot of fruit flesh is still stuck to the stem. The seed pushed out by the thin needle rod will carry a lot of fruit flesh with it, causing fruit flesh loss and easily damaging the final appearance of the fruit flesh. When the blade penetrates the stem too deeply, part of the blade cuts into the seed. After the blade opens, the seed will break, resulting in some seed remaining in the fruit flesh and affecting the quality of the fruit flesh.

[0005] (2) After the blade of the pitting pliers opens, the fine needle rod of the pitting mechanism needs to pierce into the longan shell and pulp from below the fruit support hole and push the longan pit upward into the blade of the pitting pliers. Then the pitting pliers can only remove the longan pit when they close and move back to their original position. However, when the fine needle rod pushes the pit from below, it will pierce the pulp from the bottom of the longan, causing pulp loss and affecting the quality of the final pulp.

[0006] (3) The denucleating mechanism is limited by the setting structure of the turntable, resulting in too many denucleating clamps. However, they are only used in the denucleating station and the denucleating station, which will cause some waste and the work efficiency is relatively low. Summary of the Invention

[0007] The purpose of this invention is to provide a floating pitting mechanism for a longan pitting machine, which is used to construct an improved longan pitting machine to overcome the above-mentioned shortcomings of the existing longan pitting machine.

[0008] The specific technical solution of this invention is as follows:

[0009] A floating pitting mechanism for a longan pitting machine is assembled from a two-dimensional pneumatic slide, a vertical slide, and a pitting clamp assembly.

[0010] The two-dimensional pneumatic slide is equipped with a horizontal sliding block that can move left and right along the horizontal sliding frame and a vertical sliding block that can move up and down along the vertical sliding frame. The horizontal sliding frame is fixedly mounted on the frame of the longan pitting machine, and the vertical sliding frame is fixedly connected to the front side of the horizontal sliding block. The vertical slide is fixedly connected to the vertical sliding block.

[0011] The vertical slide is provided with a vertically arranged base plate, which is fixedly connected to the front side of the vertical sliding block of the two-dimensional pneumatic slide. The rear side of the base plate is fixedly connected with a pull rod extending backward on both the left and right sides. The front side of the base plate is provided with a vertical guide rail on both the left and right sides. Linear bearing sliders are slidably connected to the two vertical guide rails respectively. The two linear bearing sliders are fixedly connected to the core removal clamp assembly.

[0012] The core removal clamp assembly has a forward-facing C-shaped bracket. The vertical plate of the C-shaped bracket is fixedly connected to the front sides of the two linear bearing sliders of the vertical slide. The left and right sides of the upper plate of the C-shaped bracket extend backward to form two upper support plates. Tension springs connect the upper support plates on both sides to the pull rods on the left and right sides of the vertical slide. The tension springs pull the entire C-shaped bracket down until the upper support plates elastically abut against the top surface of the bottom plate of the vertical slide. Vertical guide posts are installed on the left and right sides inside the opening of the C-shaped bracket. The two guide posts jointly support a piece of... A horizontal frame plate slides up and down along two guide columns inside the C-shaped support. Two downward-extending denuclearizing forceps are fixedly mounted on the horizontal frame plate. A vertically positioned denuclearizing cylinder is installed on the upper plate of the C-shaped support. The piston rod of the denuclearizing cylinder extends downward and is fixedly connected to the horizontal frame plate. Two downward-extending denuclearizing forceps are installed on the lower plate of the C-shaped support. The two denuclearizing forceps are located directly below the two denuclearizing forceps pushers on the horizontal frame plate. The denuclearizing cylinder drives the horizontal frame plate to move the two denuclearizing forceps pushers up and down synchronously, thereby controlling the synchronous opening and closing of the blades of the two denuclearizing forceps.

[0013] The core removal clamp is equipped with a vertical cylindrical blade holder, which is fixedly connected to the bottom surface of the lower plate of the C-shaped support. The cylindrical blade holder has a central hole, and a push rod is slidably sleeved in the central hole. The lower end of the push rod has a cylindrical lower push head larger than the diameter of the central hole of the cylindrical blade holder. The upper end of the push rod extends upward after passing through the central hole of the cylindrical blade holder and the corresponding opening of the C-shaped support. The center of the push rod has a vent hole that runs vertically through it. The push rod has a downward-extending air nozzle at the vent hole outlet on the bottom surface of the lower push head. The top surface of the push rod is threaded at the vent hole inlet. The device is connected to an upper connector, with an air pipe interface on its side. The upper connector has an internal air passage connecting the air pipe interface to the air vent of the push rod. A return spring is fitted onto the outer side of the upper end of the push rod, between the top surface of the cylindrical tool holder and the upper connector. This return spring pulls the lower push head of the push rod to its elastic point, resting it against the bottom surface of the cylindrical tool holder. The outer circumference of the cylindrical tool holder has a vertical groove on each side (front, back, left, and right) as a tool holder. The outer circumference of the cylindrical tool holder also has two annular grooves, one narrow and one wide, on the upper side. The annular groove on the front is a cutter shaft receiving groove, and the lower annular groove is a cutter body retainer spring receiving groove. Each cutter body receiving groove contains one blade. The blade has a vertical blade section, with a cutter shaft extending horizontally to both sides at the upper end of the vertical blade. The lower end of the vertical blade is connected to an inwardly converging inclined blade section, and the end of the inclined blade is connected to a vertically extending cutting head with a cutting edge at the lower end. The vertical blades of the four blades are movably fitted into the four cutter body receiving grooves of the cylindrical cutter holder, and the cutter shaft is movably fitted into the cutter shaft receiving groove of the cylindrical cutter holder. Inside, the inclined blade and the blade head are located below the cylindrical blade holder. The blade holding spring receiving groove of the cylindrical blade holder is equipped with one or more annular blade holding springs. The blade holding springs surround the outside of the vertical blade of the four blades, causing the four blades to retract inward. When the four blades are fully retracted, the blade head is joined together to form an annular cutting head. The lower push head of the push rod is located directly above the funnel-shaped frame formed by the inclined blades of the four blades. The air nozzle is located directly above the annular cutting head formed by the blades. The opening of the four blades is controlled by the downward movement of the push rod.

[0014] The advantages of the floating pitting mechanism in this longan pitting machine are:

[0015] (1) Because the pitting clamp assembly of this pitting mechanism is pulled by the tension spring, it can float up and down elastically on the vertical slide. When the pitting clamp is used to remove the pits of longan at the pitting station, the vertical sliding block moves the pitting clamp assembly downward, so that the blade of the pitting clamp penetrates the longan stem with a converging annular cutting head. After the cutting head touches the pit, the pitting clamp assembly automatically and elastically moves upward under the push of the pit, so that the tension spring is further pulled open. When encountering longan fruits of different sizes, the up and down floating of the pitting clamp assembly ensures that the blade of the pitting clamp penetrates the stem to a suitable depth, so that no pitting occurs. The current design avoids the problem of insufficient penetration depth of the blade into the fruit stem, which leads to incomplete separation of the stem from the fruit flesh. It also avoids the issue of excessive penetration, which leaves some seeds trapped inside the fruit flesh. Furthermore, due to its floating design, when the blade of the pitting pliers opens, the pliers are no longer pushed by the seed. Pulled by a tension spring, the pliers automatically move downwards, allowing the longan seed to enter the blade. When the blade retracts and the pliers return to their original position, the longan seed can be removed. This eliminates the need for a separate seed-removing mechanism and avoids damage to the longan flesh, resulting in a more intact and high-quality fruit.

[0016] (2) This de-peeling mechanism has only two de-peeling clamps. The two de-peeling clamps move intermittently back and forth between the left and right stops of the transverse slide by the transverse slider. During the stop, the two de-peeling clamps perform the same lifting and opening and closing control. When the transverse slider moves to the left stop position of the transverse slide, the left de-peeling clamp performs the de-peeling operation and the right de-peeling clamp performs the de-peeling operation. When the transverse slider moves to the right stop position of the transverse slide, the left de-peeling clamp moves to the original position of the right de-peeling clamp and performs the de-peeling operation, and the right de-peeling clamp performs the de-peeling operation. This process is repeated. Therefore, this de-peeling mechanism reduces the number of de-peeling clamps and improves work efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the nucleation mechanism.

[0018] Figure 2 for Figure 1 Front view of the denuclearization mechanism.

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of a two-dimensional pneumatic slide.

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the vertical slide.

[0021] Figure 5 This is a three-dimensional structural diagram of the nucleoclamp assembly.

[0022] Figure 6 for Figure 5 Front view of the denuclearization clamp assembly.

[0023] Figure 7 for Figure 5 Top view of the denuclearization clamp assembly.

[0024] Figure 8 for Figure 5 Right view of the denuclearization clamp assembly.

[0025] Figure 9 for Figure 5 A three-dimensional structural diagram of the denuclearization clamp assembly after it has been rotated 180°.

[0026] Figure 10 This is a three-dimensional structural diagram of the nucleoclastic clamp.

[0027] Figure 11 for Figure 10 Left cross-sectional view of the nucleus removal clamp.

[0028] Figure 12 for Figure 10 Exploded view of the core removal clamp components.

[0029] In the diagram: 1-Horizontal slide, 2-Horizontal slider, 3-Vertical slide, 4-Vertical slider, 5-Base plate, 6-Pull rod, 7-Vertical guide rail, 8-Linear bearing slider, 9-U-shaped bracket, 9.1-Upper support plate, 10-Tension spring, 11-Guide post, 12-Horizontal support plate, 13-Peeling pliers pusher head, 14-Peeling cylinder, 15-Peeling pliers, 16-Upper adjustment bolt, 17-Cylindrical tool holder, 17.1-Tool body 17.2-Receiving groove, 17.3-Cut body retaining spring receiving groove, 18-Push rod, 18.1-Lower push head, 18.2-Ventilation hole, 18.3-Blow nozzle, 19-Upper connector, 20-Air pipe interface, 21-Return spring, 22-Blade, 22.1-Vertical blade, 22.2-Cut shaft, 22.3-Inclined blade, 22.4-Cut head, 22.5-Side blade, 23-Cut body retaining spring. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings. In the description of the present invention, directional terms such as "front," "rear," "left," "right," "up," and "down" are based on the appendix to the specification. Figure 1 The orientations or positional relationships shown are defined only for the convenience of describing the present invention, and do not refer to a specific orientation that the device or element must have, and should not be regarded as a limitation of the present invention.

[0031] like Figure 1-2 As shown, a floating pitting mechanism for a longan pitting machine is assembled from a two-dimensional pneumatic slide, a vertical slide, and a pitting clamp assembly.

[0032] like Figure 1-3As shown, the two-dimensional pneumatic slide table is provided with a horizontal sliding block 2 that can move left and right along the horizontal sliding frame 1 and a vertical sliding block 4 that can move up and down along the vertical sliding frame 3. The horizontal sliding frame 1 is fixedly mounted on the frame of the longan pitting machine, the vertical sliding frame 3 is fixedly connected to the front side of the horizontal sliding block 2, and the vertical slide table is fixedly connected to the vertical sliding block 4.

[0033] like Figure 1-4 As shown, the vertical slide table has a vertically arranged base plate 5, which is fixedly connected to the front side of the vertical sliding slider 4 of the two-dimensional pneumatic slide table. The rear side of the base plate 5 has a pull rod 6 extending backward at the lower position on both the left and right sides. The front side of the base plate 5 has a vertical guide rail 7 on each of the left and right sides. Linear bearing sliders 8 are slidably connected to the two vertical guide rails 7 respectively. The two linear bearing sliders 8 are fixedly connected to the core removal clamp assembly.

[0034] like Figure 1-9 As shown, the core removal clamp assembly has a forward-facing C-shaped bracket 9. The vertical plate of the C-shaped bracket 9 is fixedly connected to the front side of the two linear bearing sliders 8 of the vertical slide table. The left and right sides of the upper plate of the C-shaped bracket 9 extend backward to form two upper support plates 9.1. The upper support plates 9.1 on the left and right sides are connected to the pull rods 6 on the left and right sides of the vertical slide table by tension springs 10. The tension springs 10 pull the entire C-shaped bracket 9 down until the upper support plate 9.1 elastically abuts against the top surface of the bottom plate 5 of the vertical slide table. Vertical guide posts 11 are respectively installed on the left and right sides inside the opening of the C-shaped bracket 9. The two guide posts 11 support a piece that can be placed in the C-shaped bracket through sliding bearings. Inside the U-shaped bracket 9, a horizontal frame plate 12 slides up and down along the two guide posts 11. Two downward-extending denuclearizing forceps 13 are fixedly mounted on the horizontal frame plate 12. A vertically arranged denuclearizing cylinder 14 is installed on the upper plate of the U-shaped bracket 9. The piston rod of the denuclearizing cylinder 14 extends downward and is fixedly connected to the horizontal frame plate 12. Two downward-extending denuclearizing forceps 15 are installed on the lower plate of the U-shaped bracket 9. The two denuclearizing forceps 15 are located directly below the two denuclearizing forceps 13 on the horizontal frame plate 12. The horizontal frame plate 12 is driven by the denuclearizing cylinder 14 to drive the two denuclearizing forceps 13 to move up and down synchronously, thereby controlling the synchronous opening and closing of the blades of the two denuclearizing forceps 15.

[0035] Furthermore, the upper support plate 9.1 of the C-shaped bracket 9 is provided with an opening, the lower end of the tension spring 10 is connected to the pull rod 6 of the vertical slide table through a hanging ring, and the upper end of the tension spring 10 is suspended on the opening of the upper support plate 9.1 of the C-shaped bracket 9 through an upward adjustment bolt 16. The tension of the tension spring 10 can be easily adjusted by adjusting the upward adjustment bolt 16.

[0036] Furthermore, the upper part of the core removal pliers pusher 13 is provided with a threaded rod. After the threaded rod of the core removal pliers pusher 13 passes through the opening of the horizontal frame plate 12, it is locked from the upper and lower sides of the horizontal frame plate 12 by two locking nuts, so as to facilitate the adjustment of the downward extension length of the core removal pliers pusher 13.

[0037] like Figure 5-12As shown, the core removal clamp 15 is equipped with a vertical cylindrical blade holder 17, which is fixedly connected to the bottom surface of the lower plate of the C-shaped bracket 9. The cylindrical blade holder 17 has a central hole, and a push rod 18 is slidably sleeved in the central hole. The lower end of the push rod 18 is equipped with a cylindrical lower push head 18.1 that is larger than the diameter of the central hole of the cylindrical blade holder 17. The upper end of the push rod 18 extends upward after passing through the central hole of the cylindrical blade holder 17 and the corresponding opening of the C-shaped bracket 9. The center of the push rod 18 is equipped with a vertically penetrating vent hole 18.2. The push rod 18 has a downwardly extending air nozzle 18.3 at the outlet of the vent hole 18.2 on the bottom surface of the lower push head 18.1. The top surface of the push rod 18 is connected to the inlet of the vent hole 18.2 by a thread. The device includes an upper connector 19, with an air pipe interface 20 connected to its side. The upper connector 19 has an internal air passage connecting the air pipe interface 20 to the air vent 18.2 of the push rod 18. A return spring 21 is fitted onto the outer side of the upper end of the push rod 18, between the top surface of the cylindrical tool holder 17 and the upper connector 19. The return spring 21 pulls the lower push head 18.1 of the push rod 18 upwards until it elastically rests against the bottom surface of the cylindrical tool holder 17. The outer circumference of the cylindrical tool holder 17 has a vertical strip groove on each side, serving as a tool body receiving groove 17.1. The outer circumference of the cylindrical tool holder 17 also has two annular grooves, one narrow and one wide, with the upper annular groove serving as a tool shaft receiving groove 17.2. The lower annular groove is a blade retaining spring receiving groove 17.3, and each blade receiving groove 17.1 contains a blade 22. The blade 22 has a vertical blade 22.1, the upper end of which has a blade shaft 22.2 extending horizontally to both sides. The lower end of the vertical blade 22.1 is connected to an inwardly converging inclined blade 22.3, and the end of the inclined blade 22.3 is connected to a vertically downward extending blade head 22.4, the lower end of which has a cutting edge. The vertical blades 22.1 of the four blades are movably fitted into the four blade receiving grooves 17.1 of the cylindrical blade holder 17, and the blade shaft 22.2 is movably fitted into the blade shaft receiving groove 17.2 of the cylindrical blade holder 17. The inclined blade 22.3 and the blade head 22.4 are located below the cylindrical blade holder 17. The blade spring receiving groove 17.3 of the cylindrical blade holder 17 is provided with one or more annular blade clamping springs 23. These springs encircle the vertical blade 22.1 of the four blade segments 22, causing the four blade segments 22 to retract inwards. When the four blade segments 22 are fully retracted, the blade head 22.4 is joined together to form an annular cutting head. The downward push head 18.1 of the push rod 18 is located directly above the funnel-shaped frame formed by the inclined blade segments 22.3 of the four blade segments 22. The air nozzle 18.3 is located directly above the annular cutting head formed by the blade segments 22. The opening of the four blade segments 22 is controlled by the downward movement of the push rod 18. Preferably, the blade spring receiving groove 17.3 of the cylindrical blade holder 17 is provided with two annular clamping springs 23.

[0038] The pitting pliers 15 have four blades 22, each with inwardly curved vertical side edges 22.4 on its front and rear sides. When the four blades 22 are fully retracted, the side edges 22.5 of the front and rear blades 22 form an enclosure, with the blades 22.4 of the left and right sides closely surrounding the side edges 22.5 of the front and rear blades 22. When conventional split blades with a spliced ​​structure cut into the fruit stem, the cutting effect at the joint of the blades is poor, and the blade edge at the joint is easily worn, resulting in some fruit stem and pulp residue adhering to each other after cutting, affecting the final pitting effect. The blade splicing structure of this pitting pliers perfectly solves the problem of incomplete cutting at the joint of the blades and effectively reduces the wear rate of the blade edge at the joint.

[0039] The working principle of the floating pitting mechanism of this longan pitting machine is as follows:

[0040] The two nucleating clamps 15 of this nucleating mechanism are driven by the transverse slider 2 of the two-dimensional pneumatic slide to intermittently reciprocate between two stopping positions on the left and right sides of the transverse slide 1. During the stopping period, the two nucleating clamps 15 perform the same lifting and opening / closing actions under the action of the vertical slider 4 of the two-dimensional pneumatic slide and the nucleating cylinder 14. When the transverse slider 2 moves to the left stopping position of the transverse slide 1, the left nucleating clamp 15 performs the nucleus release operation, and the right nucleating clamp 15 performs the nucleus removal operation. When the transverse slider 2 moves to the right stopping position of the transverse slide 1, the left nucleating clamp 15 moves to the original position of the right nucleating clamp 15 and performs the nucleus removal operation, and the right nucleating clamp 15 performs the nucleus release operation, and so on.

[0041] When the pitting pliers 15 perform the pitting operation, the vertical sliding block 4 of the two-dimensional pneumatic slide table first moves the pitting pliers assembly downward, causing the blade 22.4 of the pitting pliers 15 to pierce the longan fruit stem downward with a converging annular cutting head. After the blade cuts into the stem and touches the pit, the pit pushes the pitting pliers assembly upward along the vertical slide table, further pulling the tension spring 10. Since the pitting pliers assembly can float up and down elastically, as long as the initial tension of the tension spring 10 is adjusted, regardless of the size of the longan fruit, it can be ensured that the blade 22.4 just touches the pit without piercing it. Then, the pitting cylinder 14 drives the horizontal frame plate 12 to move the pitting pliers push head 13 downward, and the pitting pliers push head 13 pushes the push rod 1 of the pitting pliers 15 through the upper connector 19. 8. The blades 22.4 of the four-lobed blades 22 of the pitting clamp 15 are lowered, opening to a certain extent. The opened blades 22.4 spread apart the fruit flesh connected to the stem, achieving complete separation of the stem and the fruit flesh. After the blades 22.4 are opened, the pitting clamp assembly is no longer pushed by the fruit pit. Under the pull of the tension spring 10, the pitting clamp assembly will automatically move down to let the longan pit enter the blades 22.4. Then, the pitting cylinder 14 drives the pitting clamp pusher 13 to move up and back to its original position. The push rod 18 of the pitting clamp 15 moves up and back to its original position under the action of the return spring 21, causing the blades 22.4 of the four-lobed blades 22 of the pitting clamp 15 to close and clamp the longan pit inside. Then, the vertical sliding block 4 of the two-dimensional pneumatic slide table drives the pitting clamp assembly to move up and back to its original position, so that the longan pit can be completely removed from the longan.

[0042] After the pit is removed, the pitting clamp 15 moves horizontally to the next stopping position and performs the pit release operation. When the cutting head 22.4 of the four blades 22 of the pitting clamp 15 opens, the high-pressure air blown out by the external air supply connected to the air pipe interface 20 through the air nozzle 18.3 of the push rod 18 blows the fruit pit held in the cutting head 22.4 downward and discharged.

[0043] The above illustrations are merely typical embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A floating pitting mechanism for a longan pitting machine, characterized in that: The kernel removing mechanism is assembled by a two-dimensional pneumatic slide, a vertical slide and a kernel removing clamp assembly; The two-dimensional pneumatic slide is provided with a horizontal moving slide block movable along a horizontal moving slide frame and a vertical moving slide block movable along a vertical moving slide frame, the horizontal moving slide frame is fixedly arranged on a frame of the longan kernel removing machine, the vertical moving slide frame is fixedly connected to the front side of the horizontal moving slide block, and the vertical moving slide block is fixedly connected with the vertical slide; The vertical slide is provided with a vertically arranged bottom plate, the bottom plate is fixedly connected to the front side of the vertical moving slide block of the two-dimensional pneumatic slide, the rear side of the bottom plate is fixedly connected with a rear downward pull rod at the lower positions of the left and right sides, the front side of the bottom plate is provided with a vertical guide rail at each of the left and right sides, the two vertical guide rails are respectively slidably connected with linear bearing slide blocks, and the two linear bearing slide blocks are fixedly connected with the kernel removing clamp assembly; The kernel removing clamp assembly is provided with a U-shaped support with a front opening, the vertical plate of the U-shaped support is fixedly connected to the front side of the two linear bearing slide blocks of the vertical slide, the left and right side edges of the upper plate of the U-shaped support are further extended rearward to form left and right upper support plates, the left and right upper support plates are respectively connected with the downward pull rods of the left and right sides of the vertical slide through tension springs, the U-shaped support is pulled downward by the tension springs to be elastically abutted on the top surface of the bottom plate of the vertical slide, vertical guide columns are arranged in the left and right sides of the opening of the U-shaped support, the two guide columns support a horizontal frame plate slidably moving up and down in the U-shaped support through a sliding bearing, two downward extending kernel removing clamp push heads are fixedly arranged on the horizontal frame plate, a vertically arranged kernel removing cylinder is arranged on the upper plate of the U-shaped support, the piston rod of the kernel removing cylinder extends downward and is fixedly connected with the horizontal frame plate, two downward extending kernel removing clamps are arranged on the lower plate of the U-shaped support, the two kernel removing clamps are respectively located below the two kernel removing clamp push heads of the horizontal frame plate, the horizontal frame plate is driven by the kernel removing cylinder to synchronously move the two kernel removing clamp push heads up and down, thereby controlling the two kernel removing clamps to synchronously open and close. The de-nucleation forceps is provided with a vertical cylindrical tool holder which is fixedly connected to the bottom surface of the lower plate of the H-shaped support, the cylindrical tool holder is provided with a central hole, a push rod is slidably sleeved in the central hole, the lower end of the push rod is provided with a cylindrical lower push head which is larger than the diameter of the central hole of the cylindrical tool holder, the upper end of the push rod is extended upwards after penetrating through the central hole of the cylindrical tool holder and the corresponding hole of the H-shaped support, the center of the push rod is provided with a through air hole, the lower end of the push rod is provided with a downwardly extending air blowing nozzle at the air hole outlet of the lower end surface of the push rod, the upper end surface of the push rod is provided with an upper connector which is connected to the air hole inlet through threads, the side surface of the upper connector is connected to a gas pipe interface, the inside of the upper connector is provided with a connecting air channel to connect the gas pipe interface and the air hole of the push rod, the outside of the upper end of the push rod is sleeved with a return spring between the top surface of the cylindrical tool holder and the upper connector, the lower push head of the push rod is pulled upwards by the return spring to elastically abut against the bottom surface of the cylindrical tool holder, the outside circumference of the cylindrical tool holder is provided with one vertical strip groove as a tool body accommodating groove on each of the front, rear, left and right sides, the outside circumference of the cylindrical tool holder is further provided with two annular grooves which are narrow and wide, the upper annular groove is a tool shaft accommodating groove, and the lower annular groove is a tool body spring accommodating groove, one piece of blade is installed in each tool body accommodating groove, the blade is provided with a vertical tool body, the upper end of the vertical tool body is provided with a tool shaft which extends horizontally to both sides, the lower end of the vertical tool body is connected to an inwardly converging inclined tool body, the end of the inclined tool body is connected to a downwardly extending tool head, and the lower end of the tool head is provided with a cutting edge, the vertical tool bodies of the four pieces of blade are respectively movably embedded in the four tool body accommodating grooves of the cylindrical tool holder, the tool shafts are movably embedded in the tool shaft accommodating groove of the cylindrical tool holder, the inclined tool bodies and the tool heads are located below the cylindrical tool holder, the tool body spring accommodating groove of the cylindrical tool holder is provided with one or more annular tool body holding springs, the tool body holding springs are arranged outside the vertical tool bodies of the four pieces of blade to make the four pieces of blade converge inwardly, the tool heads are combined together to form an annular cutting head when the four pieces of blade are completely converged, the lower push head of the push rod is located directly above the funnel-shaped frame formed by the inclined tool bodies of the four pieces of blade, the air blowing nozzle is located directly above the annular cutting head formed by the combination of the four pieces of blade, and the opening of the four pieces of blade is controlled by the downward movement of the push rod. The upper support plate of the H-shaped support is provided with a hole, the lower end of the tension spring is connected to the lower pull rod of the vertical sliding table through a hanging ring, and the upper end of the tension spring is hung on the hole of the upper support plate of the H-shaped support through an upper pull adjusting bolt.

2. The floating dicer mechanism of the longan core removing machine according to claim 1, wherein: The tool heads of the front and rear blades of the four pieces of blade of the de-nucleation forceps are provided with inwardly curved vertical side edges on the left and right sides thereof, the side edges of the tool heads of the front and rear blades form a closed loop when the four pieces of blade are completely converged, and the tool heads of the left and right blades are combined to surround the outside of the side edges of the tool heads of the front and rear blades.

3. The floating kernel-removing mechanism of the longan kernel-removing machine according to claim 1, wherein: Two annular holding springs are arranged in the tool body spring accommodating groove of the cylindrical tool holder.

4. The floating kernel-removing mechanism of the longan kernel-removing machine according to claim 1, wherein: The upper part of the push head of the de-nucleation forceps is provided with a threaded rod body, and the threaded rod body of the push head of the de-nucleation forceps is locked from the upper and lower sides of the horizontal frame plate through two locking nuts after penetrating through the hole of the horizontal frame plate.

Images