A floating fruit supporting base for a longan pit-removing machine

Abstract

The present invention provides a floating fruit support seat of a longan pitting machine, which is provided with a vertical slide cylinder, a flat cover ring is placed on the top surface of the upper barrel mouth of the slide cylinder, a cylindrical slider that can slide up and down is provided inside the slide cylinder, and a tension spring is used to elastically support the cylindrical slider against the flat cover ring, a step push rod is slidably sleeved in the stepped center hole of the cylindrical slider, a core rod is slidably sleeved in the vertical guide hole in the center of the step push rod, a multi-petal gripping claw is provided on the outer circumference of the cylindrical slider, and a clamping spring is provided to embrace the outer side of the gripping claw so that the gripping claw is simultaneously retracted inward, and the synchronous opening and closing of the gripping claw is controlled by controlling the up and down movement of the step push rod; the cylindrical slider, the step push rod, the core rod, the gripping claw, and the clamping spring together form an elastic floating movable support seat. The fruit support seat can automatically adapt to longan fruits of different sizes and specifications when pitting, and automatically push the pit toward the pitting pliers, so that the obtained pulp is more complete, and the longan meat and the longan shell can be discharged separately after the longan is pitted.

Description

Technical Field

[0001] The invention relates to a component of a longan pitting machine, in particular to a floating fruit supporting seat of the longan pitting machine, and belongs to the technical field of food processing machinery. Background Art

[0002] In order to obtain lantern-shaped longan meat with better appearance and higher price, our company's prior Chinese patent CN202211187314.8 discloses a single-drive mechanical linkage longan core removal machine, which is provided with a frame with upper, middle and lower three-layer racks, and the frame is provided with a main power mechanism, a conveying mechanism, a core-lifting mechanism, a core-removing mechanism, a linkage mechanism, and a shell-lifting mechanism. The conveying mechanism is provided with a feed plate, and the feed plate is provided with a positioning hole and a fruit-supporting hole, and a fruit-supporting frame is embedded in the fruit-supporting hole, and the fruit-supporting frame is provided with a cylindrical wall, and the upper edge of the cylindrical wall is provided with a multi-petal arc-shaped support piece bent toward the inner side of the cylindrical wall, and the multi-petal arc-shaped support pieces together form an elastic support bucket. When in use, the longan is placed on the fruit supporting rack of the fruit supporting hole with the fruit stalk facing upwards. At the core removing station, the petal-type cutter heads of the core removing pliers of the core removing mechanism penetrate into the longan fruit stalk from top to bottom in a gathered state to a certain depth and then open, and the flesh connected around the fruit stalk is stretched open by the opened cutter heads to achieve complete separation of the fruit stalk and the flesh. Then, the fine needle rod of the stepped push rod of the core pushing mechanism is pushed into the shell and flesh of the longan from below the fruit supporting hole and the longan core is pushed upward into the cutter heads of the core removing pliers. When the cutter heads of the core removing pliers return upward and resume closure, the pushed out longan core can be clamped on the cutter heads and moved to the core releasing station to release and discharge the longan core. After the cored longan in the fruit supporting hole moves to the shell and flesh discharging station with the feed conveyor plate, the cored longan shell and longan flesh are pushed out from the bottom surface of the fruit supporting hole by the pushing end head of the shell and flesh pushing mechanism, and then the shell and flesh are sent to the next process for shell and flesh separation.

[0003] The design of the fruit support frame for the fruit support hole in the above technical solution still has certain defects in actual use, which are mainly reflected in:

[0004] (1) Since the fruit support frame is fixed, the distance that the core-removing pliers extend downward is also fixed. When encountering longan fruits of different sizes, the depth of penetration into the longan fruit stem is different. When the blade does not penetrate the fruit stem deeply enough, the fruit stem and the flesh are not completely separated. After the blade is opened, there is still a lot of flesh attached to the core. The core pushed upward by the fine needle rod will carry a lot of flesh, which will not only cause the flesh to be lost, but also easily damage the final flesh appearance. When the blade penetrates the fruit stem too deep, part of the blade cuts into the core. After the blade is opened, part of the core will remain in the flesh and cannot be removed, affecting the quality of the flesh.

[0005] When the thin needle rod of the top core mechanism's stepped top rod is inserted into the fruit shell and flesh of the longan from below the fruit-supporting hole and pushes the longan pit upward into the knife head of the pit-removing pliers, it will damage the flesh from the bottom of the longan, resulting in both flesh loss and affecting the appearance of the flesh.

[0006] When the longan is pitted at the pitting station, due to the top pressure of the knife head of the pit-removing pliers, the longan shell of the pitted longan will be tightly stuck in the fruit-supporting frame of the fruit-supporting hole. After moving to the shell and flesh discharging station, when the pushing end of the shell and flesh pushing mechanism pushes the pitted longan out from the bottom of the fruit-supporting hole, it often happens that only the longan flesh can be pushed out while the longan shell still remains in the fruit-supporting frame, and it is necessary to stop the machine to manually remove the longan shell remaining in the fruit-supporting frame, otherwise it will affect the next feeding of the fruit-supporting frame.

[0007] The longan shells and longan flesh discharged at the shell and flesh discharging station still need to enter the next shell and flesh separation process for manual peeling and sorting before the longan shells and longan flesh can be separated, which wastes labor costs and is time-consuming and laborious. Summary of the Invention

[0008] The purpose of the present invention is to provide a floating fruit-supporting seat for a longan pitting machine to replace the above fixed fruit-supporting frame design to solve the related defects existing in the above fixed fruit-supporting frame.

[0009] The specific technical solution of the present invention is as follows:

[0010] A floating fruit support seat of a longan pitting machine is provided with a vertical slide barrel which passes through from top to bottom, a lower barrel opening of the slide barrel is provided with a circle of inwardly retracted lower stop edge, a flat cover ring is placed on the top surface fixed frame of the upper barrel opening of the slide barrel, and the inner circle aperture of the flat cover ring is smaller than the inner barrel aperture of the slide barrel; a movable lower supporting plate with a central hole is placed on the upper frame of the lower stop edge inside the slide barrel, a cylindrical slider which can slide up and down in the slide barrel is provided between the flat cover ring and the lower supporting plate inside the slide barrel, a tensioning spring is provided between the middle part of the top surface of the lower supporting plate and the middle part of the bottom surface of the cylindrical slider, and the top surface of the cylindrical slider is elastically pressed against the bottom surface of the flat cover ring by the top push of the tensioning spring; the cylindrical slider is provided with a stepped center hole which passes through from top to bottom and is larger at the top and smaller at the bottom, and a thread which passes through the entire stepped center hole is slidably sleeved in the stepped center hole A step push rod for a ladder center hole, the upper part of the step push rod is a push head matching the upper hole of the step center hole, the lower part of the step push rod is a guide rod matching the lower hole of the step center hole, the lower end of the guide rod passes through the inner ring of the tensioning spring and the middle hole of the lower support plate in sequence and then extends downward; a vertical guide hole with a countersunk hole at the upper end is provided in the center of the step push rod, a core rod is slidably sleeved in the vertical guide hole, and a push plate is provided at the upper end of the core rod; when the push plate of the core rod completely falls into the countersunk hole of the vertical guide hole, the top surface of the push plate is flush with the top surface of the step push rod, and the lower end of the core rod extends out of the bottom surface of the step push rod for a distance; a plurality of vertical strip grooves evenly distributed along the circumference are provided on the outer circumference of the cylindrical slider, and two upper and lower grooves are also provided on the outer circumference of the cylindrical slider One wide and one narrow annular groove, the annular groove on the upper side is the spring accommodating groove, and the annular groove on the lower side is the claw shaft accommodating groove, and a claw is installed in each strip groove; the claw is provided with a vertical claw arm, and the lower end of the vertical claw arm is provided with a claw shaft extending horizontally to both sides, and the upper end of the vertical claw arm is connected to a section of inwardly gathered inclined claw arm, and the upper end of the inclined claw arm is connected to an upwardly extending claw head, and the inner claw surface of the claw head is arc-shaped; the vertical claw arms of each claw are movably embedded in each strip groove of the cylindrical slider, and the claw shaft is movably embedded in the claw shaft accommodating groove of the cylindrical slider, the inclined claw arm and the claw head are located above the cylindrical slider, and more than one annular clamping spring is provided in the spring accommodating groove of the cylindrical slider, which is controlled by the clamping spring The spring is encircled on the outside of the vertical claw arms of all the claws so that all the claws are retracted inward at the same time, and the claw heads of the claws pass through the inner circle of the flat cover circle and extend above the flat cover circle; when all the claws are fully retracted, the claw heads of the claws together form a spherical encircling frame, and the inclined claw arms of the claws together form an inverted funnel-shaped frame, the push head of the step push rod is located directly below the inverted funnel-shaped frame, and the minimum diameter surrounded by the upper end of the inverted funnel-shaped frame is smaller than the outer diameter of the push head of the step push rod and larger than the outer diameter of the push plate of the core rod, and the synchronous opening and closing of all the claws is controlled by controlling the up and down movement of the step push rod; the cylindrical slider, the step push rod, the core rod, the claws, and the clamping spring together form a movable bracket that can elastically float up and down in the slide tube.

[0011] The advantages of the floating fruit support of this longan pitting machine are:

[0012] (1) Due to the ingenious floating design, that is, the movable support seat elastically supported by the tension spring inside the sliding cylinder can float up and down elastically. When performing longan pit removal operation at the pit removal station, when encountering longan fruits of different sizes and specifications, the up and down floating of the movable support seat can ensure that the de - nucleation clamp blade head can always penetrate the fruit stalk to an appropriate depth when piercing the fruit stalk. Therefore, there will be no phenomenon that the blade head fails to penetrate the fruit stalk deeply enough to completely separate the fruit stalk from the pulp, nor will there be a phenomenon that the blade head penetrates the fruit stalk too deeply resulting in some fruit pits remaining in the pulp and unable to be removed. Moreover, due to the floating design, after the blade head of the de - nucleation clamp opens, the movable support seat will automatically move upward under the pushing action of the tension spring, so that the longan pit will automatically be pushed into the blade head and taken out along with the blade head, eliminating the need to additionally set up a pit - pushing mechanism and also avoiding the damage of the pit - pushing mechanism to the longan pulp, making the obtained pulp more complete in appearance.

[0013] (2) After applying this fruit - supporting seat, the original shell - and - pulp discharging station can be decomposed into a pulp - discharging station and a shell - discharging station. After the longan is pitted and moves to the pulp - discharging station along with this fruit - supporting seat, by controlling the core rod to move upward, the holding claws can be used to hold the longan shell while pushing the longan pulp out of the holding claws, and then the longan pulp can be discharged with a blowing nozzle. Then, the longan shell moves to the shell - discharging station along with this fruit - supporting seat. By controlling the stepped push rod to move upward, the longan shell can be pushed out of the holding claws while controlling the holding claws to open, and then the longan shell can be discharged with a blowing nozzle. In this way, the separation of the longan shell and the longan pulp can be directly achieved on the longan pit - removing machine, eliminating the operation of manually separating the fruit shell and the pulp. Moreover, when the fruit - supporting seat pushes the shell, the holding claws are open, and there will be no phenomenon that the longan shell remains in the holding claws, so it will not affect the next feeding, ensuring the continuity of production. Description of the Drawings

[0014] Figure 1 Schematic three - dimensional structure diagram of this fruit - supporting seat.

[0015] Figure 2 is Figure 1 Front - view sectional drawing of the fruit - supporting seat.

[0016] Figure 3 is Figure 1 Exploded view of the parts of the fruit - supporting seat.

[0017] Figure 4 is Figure 2 Schematic diagram of the fruit - supporting seat when the core rod is equipped with a return spring.

[0018] Figure 5 Schematic diagram of this fruit - supporting seat in the state of waiting for fruit input.

[0019] Figure 6 Schematic diagram of this fruit - supporting seat in the state of fruit input and clamping.

[0020] Figure 7This is a schematic diagram of the Ben Tuo fruit seat in the meat discharging state.

[0021] Figure 8 This is a schematic diagram of the Ben Tuo fruit seat in the shell discharging state.

[0022] Figure 9 This is a schematic diagram of the upper end head of the shell discharging push rod.

[0023] In the figure: 1 - sliding cylinder, 2 - flat cover ring, 3 - bolt assembly, 4 - lower support plate, 5 - cylindrical slider, 5.1 - stepped central hole, 5.2 - strip groove, 5.3 - spring receiving groove, 5.4 - claw shaft receiving groove, 6 - tension spring, 7 - stepped push rod, 7.1 - push head, 7.2 - guide rod, 7.3 - vertical guide hole, 8 - holding claw, 8.1 - vertical claw arm, 8.2 - claw shaft, 8.3 - inclined claw arm, 8.4 - claw head, 9 - clamping spring, 10 - core rod, 10.1 - push plate, 11 - return spring, 12 - adjusting nut, 13 - mounting plate. Detailed implementation manners

[0024] The following further describes the present invention with reference to the accompanying drawings. In the description of the present invention, orientation terms such as "front", "rear", "left", "right", "upper", and "lower" are defined based on the orientation or positional relationship shown in the Figure 1 accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating that the device or component must have a specific orientation, and should not be regarded as a limitation to the present invention.

[0025] As Figure 1-3As shown, the floating fruit supporting seat of the longan pitting machine is provided with a vertical slide 1 which passes through from top to bottom, and a circle of inwardly retracted lower retaining edge is provided at the lower tube mouth of the slide 1, and a flat cover ring 2 is placed on the fixed frame on the top surface of the upper tube mouth of the slide 1, and the inner circle aperture of the flat cover ring 2 is smaller than the inner tube aperture of the slide 1; a movable lower supporting plate 4 with a central hole is placed on the upper frame of the lower retaining edge inside the slide 1, and a cylindrical slider 5 which can slide up and down in the slide 1 is provided between the flat cover ring 2 and the lower supporting plate 4 inside the slide 1, and a tensioning spring 6 is provided between the middle part of the top surface of the lower supporting plate 4 and the middle part of the bottom surface of the cylindrical slider 5, and the top surface of the cylindrical slider 5 is elastically pressed against the bottom surface of the flat cover ring 2 by the pushing of the tensioning spring 6; the cylindrical slider 5 is provided with a stepped center hole 5.1 which passes through from top to bottom and is larger at the top and smaller at the bottom, and the stepped center hole A step push rod 7 that runs through the entire step center hole 5.1 is slidably sleeved in the inner part of the step push rod 7, the upper part of the step push rod 7 is a push head 7.1 that matches the upper hole of the step center hole 5.1, and the lower part of the step push rod 7 is a guide rod 7.2 that matches the lower hole of the step center hole 5.1, and the lower end of the guide rod 7.2 passes through the inner ring of the tensioning spring 6 and the middle hole of the lower support plate 4 in sequence and then extends downward; a vertical guide hole 7.3 with a countersunk hole at the upper end is provided in the center of the step push rod 7, a core rod 10 is slidably sleeved in the vertical guide hole 7.3, and a push plate 10.1 is provided on the upper end of the core rod 10; when the push plate 10.1 of the core rod 10 completely falls into the countersunk hole of the vertical guide hole 7.3, the top surface of the push plate 10.1 is flush with the top surface of the step push rod 7, and the core rod 10 The lower end extends out of the bottom surface of the step push rod 7 for a distance; the outer circumference of the cylindrical slider 5 is provided with a plurality of vertical strip grooves 5.2 evenly distributed along the circumference, and the outer circumference of the cylindrical slider 5 is also provided with two upper and lower annular grooves, one wide and one narrow, the upper annular groove is a spring accommodating groove 5.3, and the lower annular groove is a claw shaft accommodating groove 5.4, and a petal claw 8 is installed in each strip groove; the claw 8 is provided with a section of vertical claw arm 8.1, the lower end of the vertical claw arm 8.1 is provided with a claw shaft 8.2 extending horizontally to both sides, the upper end of the vertical claw arm 8.1 is connected to a section of inwardly gathered inclined claw arm 8.3, the upper end of the inclined claw arm 8.3 is connected to an upwardly extending claw head 8.4, and the inner claw surface of the claw head 8.4 is an arc shape; the vertical claw arm 8 of each petal claw 8 .1 are respectively movably embedded in each strip groove 5.2 of the cylindrical slider 5, the claw shaft 8.2 is movably embedded in the claw shaft receiving groove 5.4 of the cylindrical slider 5, the inclined claw arm 8.3 and the claw head 8.4 are located above the cylindrical slider 5, and more than one annular clamping spring 9 is arranged in the spring receiving groove 5.3 of the cylindrical slider 5, and the clamping spring 9 is surrounded by the outer side of the vertical claw arm 8.1 of all the clamping claws 8 so that all the clamping claws 8 are retracted inward at the same time, and the claw head 8.4 of the clamping claw 8 passes through the inner circle of the flat cover ring 2 and extends to the top of the flat cover ring 2; when all the clamping claws 8 are completely retracted, the claw head 8.4 of the clamping claw 8 together encloses a spherical enveloping frame, and the inclined claw arm 8.3 of the clamping claw 8 together encloses an inverted funnel-shaped frame, and the push head 7 of the ladder push rod 7.1 is located directly below the inverted funnel-shaped frame. The minimum diameter formed by the upper end of the inverted funnel-shaped frame is smaller than the outer diameter of the push head 7.1 of the stepped push rod 7 and larger than the outer diameter of the push plate 10.1 of the core rod 10. The synchronous opening and closing of all the holding claws 8 are controlled by controlling the up and down movement of the stepped push rod 7. A movable support base that can elastically float up and down in the sliding cylinder 1 is jointly composed of a cylindrical slider 5, a stepped push rod 7, a core rod 10, holding claws 8, and a holding spring 9.

[0026] Further, an outwardly extending upper convex edge with a plurality of connection holes is provided on the outer side of the upper barrel opening of the sliding cylinder 1, and corresponding connection holes are also provided on the flat cover ring 2. The flat cover ring 2 is fixedly connected to the top surface of the upper barrel opening of the sliding cylinder 1 by a bolt assembly 3 passing through the connection holes of the flat cover ring 2 and the connection holes of the upper convex edge of the sliding cylinder 1.

[0027] Further, in order to enable the core rod 10 to return to its position better after moving upward, as Figure 4 shown, a return spring 11 is also movably sleeved on the outer side of the lower end of the core rod 10. A section of spring receiving hole is provided at the lower end of the vertical guide hole 7.3 of the stepped push rod 7. The upper end of the return spring 11 abuts against the upper end face of the spring receiving hole, and the lower end of the return spring 11 abuts against an adjusting nut 12 connected to the outer side of the lower end of the core rod 10.

[0028] Preferably, 6 strip-shaped grooves 5.2 are provided on the outer circumference of the cylindrical slider 5, and 6 holding claws 8 are correspondingly installed. Preferably, 2 annular holding springs 9 are provided in the spring receiving groove 5.3 of the cylindrical slider 5.

[0029] When this fruit holding base is installed, as Figures 5-8 shown, the fruit holding base is placed on the corresponding mounting holes of the mounting plate 13 through the upper convex edge of the sliding cylinder 1. While the bolt assembly 3 fixedly connects the flat cover ring 2 and the sliding cylinder 1, it also fixedly connects this fruit holding base to the mounting plate 13.

[0030] The working principle of this fruit holding base is as follows:

[0031] The operator manually places the longan to be pitted with the fruit stalk facing upward on the top surface of the stepped push rod 7 of the fruit holding base in the fruit waiting state as Figure 5 shown, slightly presses down the longan to be pitted, so that the push head 7.1 of the stepped push rod 7 moves downward to below the claw head 8.4 of the holding claw 8. The claw head 8.4 of the holding claw 8 will automatically close to clamp and fix the longan to be pitted, making the fruit holding base enter the fruit clamping state as Figure 6 shown.

[0032] The fruit-holding base that holds the longan to be pitted moves to the pitting station with the mounting plate 13. The de-pitting forceps cutter head above moves downward in a gathered state and pierces into the longan fruit stalk. When the cutter head moves downward and touches the longan pit after cutting into the fruit stalk, it will push the longan together with the movable base downward against the pit, causing it to move downward elastically. Since the movable base can float up and down elastically, no matter what size and specification of longan fruit it encounters, it can ensure that the de-pitting forceps cutter head just pierces and touches the pit, separating the fruit stalk from the pulp completely without piercing the pit. When the cutter head of the de-pitting forceps opens, there is no downward thrust above the pit. Under the elastic push of the tension spring 6, the longan together with the movable base moves upward elastically by a certain distance, causing the longan pit to automatically push into the cutter head of the de-pitting forceps and be taken out upward following the retracted cutter head, thus completing the pitting operation.

[0033] After the fruit-holding base that holds the pitted longan moves to the flesh-discharging station with the mounting plate 13, the core rod 10 is pushed upward by the lower flesh-discharging push rod and held. Then, while the holding claws 8 hold the longan shell, the push plate 10.1 of the core rod 10 can push the longan flesh out of the holding claws 8 alone, as Figure 7 shown. Then, the longan flesh is blown away by the blow nozzle on the side and falls into the corresponding longan flesh discharging chute for discharging. Then, the flesh-discharging push rod retracts, and the core rod 10 automatically returns under its own gravity or the action of the return spring 11, thus completing the flesh-discharging operation.

[0034] After the fruit-holding base that holds the longan shell moves to the shell-discharging station with the mounting plate 13, the stepped push rod 7 is pushed upward by the lower shell-discharging push rod. The upper end of the shell-discharging push rod has a specific setting as shown in Figure 9 . A core rod receiving hole is opened at its upper end, and notches for the lower end of the core rod 10 to pass through horizontally are provided on both sides of the core rod receiving hole. When the shell-discharging push rod is pushed upward, the lower end of the core rod 10 is inserted into the core rod receiving hole of the shell-discharging push rod. The shell-discharging push rod only applies force to the guide rod 7.2 of the stepped push rod 7 and does not apply force to the core rod 10. After the stepped push rod 7 moves upward in place, the shell-discharging push rod can be retracted. The stepped push rod 7 maintains its position by the clamping of the holding claws 8. When the stepped push rod 7 moves upward, the push head 7.1 first pushes the holding claws 8 open, and then pushes the longan shell in the holding claws 8 out of the holding claws 8, as Figure 8 shown. Then, the longan shell is blown away by the blow nozzle on the side and falls into the corresponding longan shell discharging chute for discharging, thus completing the shell-discharging operation.

[0035] Finally, the push head 7.1 of the stepped push rod 7 is pushed downward by a certain distance by the upper return push rod, so that the fruit-holding base returns to the fruit-loading state as shown in Figure 5 . Setting the fruit-loading state can keep the claw head 8.4 of the holding claws 8 open for convenient fruit loading, and at the same time shorten the stroke required to press the longan downward during manual fruit loading and clamping, making the operation more convenient.

[0036] The above illustrations are only typical embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A floating fruit supporting seat of a longan pit-removing machine, characterized in that: The fruit support seat is provided with a vertical slide barrel which passes through from top to bottom, and a circle of inwardly retracted lower stop edge is provided at the lower barrel mouth of the slide barrel, and a flat cover ring is placed on the fixed frame on the top surface of the upper barrel mouth of the slide barrel, and the inner circle aperture of the flat cover ring is smaller than the inner barrel aperture of the slide barrel; a movable lower supporting plate with a central hole is placed on the upper frame of the lower stop edge inside the slide barrel, and a cylindrical slider which can slide up and down in the slide barrel is provided between the flat cover ring and the lower supporting plate inside the slide barrel, and a tensioning spring is provided between the middle part of the top surface of the lower supporting plate and the middle part of the bottom surface of the cylindrical slider, and the top surface of the cylindrical slider is elastically pressed against the bottom surface of the flat cover ring by the pushing of the tensioning spring; the cylindrical slider is provided with a stepped center hole which passes through from top to bottom and is larger at the top and smaller at the bottom, and a stepped pusher which runs through the entire stepped center hole is slidably sleeved in the stepped center hole The upper part of the step push rod is a push head matching the upper hole of the step center hole, and the lower part of the step push rod is a guide rod matching the lower hole of the step center hole. The lower end of the guide rod passes through the inner ring of the tensioning spring and the middle hole of the lower support plate in sequence and then extends downward; the center of the step push rod is provided with a vertical guide hole with a countersunk hole at the upper end, and a core rod is slidably sleeved in the vertical guide hole, and a push plate is provided at the upper end of the core rod; when the push plate of the core rod completely falls into the countersunk hole of the vertical guide hole, the top surface of the push plate is flush with the top surface of the step push rod, and the lower end of the core rod extends out of the bottom surface of the step push rod for a distance; the outer circumference of the cylindrical slider is provided with a plurality of vertical strip grooves evenly distributed along the circumference, and the outer circumference of the cylindrical slider is also provided with two upper and lower grooves, one wide and one narrow An annular groove, the annular groove on the upper side is a spring accommodating groove, and the annular groove on the lower side is a claw shaft accommodating groove, and a claw is installed in each strip groove; the claw is provided with a vertical claw arm, and the lower end of the vertical claw arm is provided with a claw shaft extending horizontally to both sides, and the upper end of the vertical claw arm is connected to a section of inwardly gathered inclined claw arm, and the upper end of the inclined claw arm is connected to an upwardly extending claw head, and the inner claw surface of the claw head is an arc shape; the vertical claw arms of each claw are movably embedded in each strip groove of the cylindrical slider, and the claw shaft is movably embedded in the claw shaft accommodating groove of the cylindrical slider, the inclined claw arm and the claw head are located above the cylindrical slider, and more than one annular clamping spring is provided in the spring accommodating groove of the cylindrical slider, which is surrounded by the clamping spring. All the claws are retracted inward at the same time on the outside of their vertical claw arms, and the claw heads of the claws pass through the inner circle of the flat cover circle and extend above the flat cover circle; when all the claws are fully retracted, the claw heads of the claws together form a spherical embracing frame, and the inclined claw arms of the claws together form an inverted funnel-shaped frame, the push head of the step push rod is located directly below the inverted funnel-shaped frame, and the minimum diameter surrounded by the upper end of the inverted funnel-shaped frame is smaller than the outer diameter of the push head of the step push rod and larger than the outer diameter of the push plate of the core rod, and the synchronous opening and closing of all the claws is controlled by controlling the up and down movement of the step push rod; a movable bracket that can elastically float up and down in the slide tube is composed of a cylindrical slider, a step push rod, a core rod, a claw, and a clamping spring.

2. The floating fruit supporting base of the longan pit-removing machine according to claim 1, characterized in that: The outer side of the upper tube mouth of the slide is provided with an outward-spreading upper convex edge with multiple connecting holes, and the flat cover ring is also provided with corresponding connecting holes. The flat cover ring is fixedly connected to the top surface of the upper tube mouth of the slide by a bolt assembly passing through the connecting holes of the flat cover ring and the connecting holes of the upper convex edge of the slide.

3. The floating fruit supporting base of the longan pit-removing machine according to claim 1, characterized in that: A return spring is also movably sleeved outside the lower end of the core rod. A section of spring accommodation hole is provided at the lower end of the vertical guide hole of the stepped push rod. The upper end of the return spring abuts against the upper end face of the spring accommodation hole, and the lower end of the return spring abuts against an adjusting nut connected to the outside of the lower end of the core rod.

4. The floating fruit supporting base of the longan pit-removing machine according to claim 1, characterized in that: Six strip-shaped grooves are provided on the outer circumference of the cylindrical slider, and six clamping claws are correspondingly installed.

5. The floating fruit supporting base of the longan pit-removing machine according to claim 1, characterized in that: Two annular clamping springs are provided in the spring accommodation groove of the cylindrical slider.

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