Longan de-coring machine with floating de-coring mechanism

Abstract

The present application provides a longan core removing machine with floating type core removing mechanism, which is provided with power mechanism, core removing mechanism and fruit supporting mechanism on the frame; the core removing mechanism is assembled by two-dimensional pneumatic slide, vertical slide and core removing forceps assembly; the rotating disc of the fruit supporting mechanism is provided with a group of annular, spaced and uniformly distributed expandable fruit supporting seats. The core removing mechanism of the machine adopts floating type design, and the core removing forceps of the core removing mechanism can automatically adapt to longan fruits of different sizes and specifications during core removing, and can automatically clamp and pick longan core, so that the final obtained pulp has more complete appearance. Moreover, the core removing mechanism of the machine is only provided with two core removing forceps, one for picking core and the other for releasing core, which synchronously act, thereby reducing the number of core removing forceps and improving work efficiency. In addition, the fruit supporting mechanism of the machine adopts expandable fruit supporting seats, so that longan shell will not be left in the fruit supporting seats during longan shell pulp discharging, and will not affect the next feeding, thereby ensuring the continuity of production.

Description

TECHNICAL FIELD

[0001] The application relates to a fruit pitting machine, in particular to a longan pitting machine adopting a floating type pitting mechanism and belonging to the technical field of food processing machinery. BACKGROUND

[0002] In order to obtain the longan pulp with better appearance and higher sales price, the previous Chinese patent CN202211187314.8 of the company discloses a single-drive mechanical linkage type longan pitting machine, which is provided with a driving mechanism, a conveying mechanism, a core lifting mechanism, a pitting mechanism, a linkage mechanism and a shell pulp lifting mechanism on a rack. The conveying mechanism drives a feeding plate to move through two conveying chains, the feeding plate is provided with positioning holes and fruit supporting holes, and a fruit supporting frame is embedded in the fruit supporting holes. The pitting mechanism is provided with a plurality of pitting forceps distributed along the circumference of a rotating disc. When in use, the longan is placed on the fruit supporting frame of the fruit supporting hole of the feeding plate with the fruit stem facing upward, when the feeding plate moves to the pitting position, the split type cutter head of the pitting forceps pierces into the longan fruit stem from the top to the bottom to a certain depth and then opens, the longan pulp connected to the fruit stem is separated by the opened cutter head, then the fine needle rod of the ladder-shaped ejector rod of the core lifting mechanism is inserted into the longan shell and pulp from the bottom of the fruit supporting hole and lifts the longan core upward into the cutter head of the pitting forceps, when the cutter head of the pitting forceps restores to the closed state and moves upward, the lifted longan core is clamped in the cutter head and then removed, then the longan core is released and discharged at the core releasing position, then the pitted longan in the fruit supporting hole moves to the shell pulp separating position together with the feeding plate, the longan shell and pulp are pushed out, and then the longan shell and pulp are sent to the next process for shell pulp separation treatment.

[0003] The technical scheme of the longan pitting machine still has some deficiencies in the actual application process, mainly as follows:

[0004] (1) When the cutter head of the pitting forceps pierces into the longan, the fruit supporting frame is fixed, and the distance of the downward extension of the cutter head is also fixed, so when different sizes of longan fruits are encountered, the depth of the cutter head piercing into the longan fruit stem is different. When the depth of the cutter head piercing into the fruit stem is insufficient, the fruit stem and pulp are not completely separated, and after the cutter head opens, a lot of pulp is still adhered to the fruit stem, the upward lifting of the fruit core by the fine needle rod will carry a lot of pulp, which not only causes the loss of pulp, but also easily damages the final appearance of the pulp; when the depth of the cutter head piercing into the fruit stem is too large, part of the cutter head cuts into the fruit core, and after the cutter head opens, the fruit core is broken, which causes part of the fruit core to remain in the pulp and cannot be removed, affecting the quality of the pulp.

[0005] (2) The knife head of the kernel removing forceps needs to be opened, and the thin needle rod of the kernel pushing mechanism needs to be inserted into the shell and flesh of the longan from below the fruit supporting hole and push the longan kernel upward into the knife head of the kernel removing forceps, and then the kernel removing forceps can take out the longan kernel when it is closed and moved back to the original position. However, the thin needle rod will pierce the flesh from the bottom surface of the longan when pushing the kernel from below, which not only causes the loss of flesh, but also affects the appearance of the final obtained flesh.

[0006] (3) The kernel removing mechanism is limited by the setting structure of the rotating disc, resulting in too many kernel removing forceps. However, they are only used in the kernel removing station and the kernel releasing station, which causes waste and low work efficiency.

[0007] (4) When the longan is removed in the kernel removing station, the shell of the longan that has been removed will be tightly clamped in the fruit supporting frame of the fruit supporting hole. When the pushing end of the shell and flesh pushing mechanism pushes the longan that has been removed from the bottom surface of the fruit supporting hole in the shell and flesh removing station, the longan shell often remains in the fruit supporting frame while the longan flesh is pushed out. Manual cleaning of the longan shell remaining in the fruit supporting frame is required, otherwise it will affect the next feeding of the fruit supporting frame. SUMMARY

[0008] The purpose of the present application is to provide a longan kernel removing machine with a floating kernel removing mechanism, which redesigns and improves multiple mechanisms of the original longan kernel removing machine to solve the above-mentioned deficiencies of the technical solution of the original longan kernel removing machine.

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

[0010] A longan kernel removing machine with a floating kernel removing mechanism is provided, which is provided with a rack with upper and lower rack plates, a power mechanism, a kernel removing mechanism, and a fruit supporting mechanism.

[0011] The power mechanism is rotatably supported by a bearing seat assembly at a rear position above the lower rack plate of the rack, and a reduction motor is arranged below the lower rack plate of the rack. The main shaft of the reduction motor is connected to the rear driven shaft through a first chain transmission assembly, and the main shaft of the reduction motor is also connected to the front driven shaft of the fruit supporting mechanism through a second chain transmission assembly. The front driven shaft and the rear driven shaft are driven to rotate by the reduction motor; a plurality of gas control cams are fixedly connected to the rear driven shaft and rotate synchronously with the rear driven shaft. A mechanical gas valve with a roller switch is arranged on the side of each gas control cam. The gas inlet of each mechanical gas valve is connected to an external gas supply, and the gas outlet of each mechanical gas valve is connected to the corresponding interface of each pneumatic element of the machine. The action of each pneumatic element of the machine is controlled by rotating the gas control cam to actuate the mechanical gas valve.

[0012] The floating type kernel removing mechanism is assembled by a two-dimensional pneumatic slide, a vertical slide and a kernel removing forceps assembly; the two-dimensional pneumatic slide is provided with a horizontal moving slide block capable of moving left and right along a horizontal slide frame and a vertical moving slide block capable of moving up and down along a vertical slide frame, the horizontal slide frame is fixedly arranged above the middle part of an upper layer frame plate of a machine frame, and the vertical slide frame is fixedly connected to the front side of the horizontal moving slide block; 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 to a rear downward pull rod at the lower positions of the left and right sides, and the front side of the bottom plate is provided with a vertical guide rail at each of the left and right sides; the kernel removing forceps assembly is provided with a U-shaped support with an opening facing forward, 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 upper plate of the U-shaped support further extends rearward to form left and right upper support plates, and the left and right upper support plates are respectively connected to the downward pull rods of the left and right sides of the vertical slide through tension springs, so that 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; the opening of the U-shaped support is provided with vertical guide columns at the left and right sides, the two guide columns commonly support a horizontal frame plate capable of moving up and down along the two guide columns in the U-shaped support through a sliding bearing, the horizontal frame plate is fixedly arranged with two downward extending kernel removing forceps push heads, 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 to the horizontal frame plate, and two downward extending kernel removing forceps are arranged on the lower plate of the U-shaped support, the two kernel removing forceps are respectively arranged below the two kernel removing forceps 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 forceps push heads up and down, so as to synchronously open and close the cutter heads of the two kernel removing forceps; the upper layer frame plate of the machine frame is provided with an avoiding opening corresponding to the moving range of the vertical moving slide block of the two-dimensional pneumatic slide, the vertical slide and the kernel removing forceps assembly; the horizontal moving slide block of the two-dimensional pneumatic slide is intermittently reciprocated at the left and right two stopping positions of the horizontal slide frame under the control of a control cam, when the horizontal moving slide block moves to the left stopping position of the horizontal slide frame, the left kernel removing forceps is arranged at the left kernel releasing position and the right kernel removing forceps is arranged at the kernel removing position; when the horizontal moving slide block moves to the right stopping position of the horizontal slide frame, the left kernel removing forceps is arranged at the kernel removing position and the right kernel removing forceps is arranged at the right kernel releasing position; the lower layer frame plate of the machine frame is provided with a kernel hole for the falling of longan kernels below the positions corresponding to the left and right kernel removing forceps.

[0013] The rotating disc assembly is arranged at the front position of the lower layer frame plate of the rack, and is provided with a vertical rotating shaft which is rotatably supported by a bearing seat assembly and penetrates the lower layer frame plate of the rack. The vertical rotating shaft is fixedly connected with a horizontal rotating disc above the lower layer frame plate of the rack. The outer disc surface of the rotating disc is provided with a group of annularly spaced and uniformly distributed fruit supporting seat mounting holes. Each fruit supporting seat mounting hole is correspondingly provided with a clamping fruit supporting seat above. The inner disc surface of the rotating disc is provided with a group of positioning through holes corresponding to the fruit supporting seats. The vertical rotating shaft is fixedly connected with a horizontal star-shaped wheel below the lower layer frame plate of the rack. The number of teeth of the horizontal star-shaped wheel is equal to the number of the fruit supporting seats on the rotating disc and is a multiple of 4. The fruit supporting seat on the rotating disc at the front position is a kernel removing station, and the center of the kernel removing station is opposite to the center of the kernel removing pliers above. The fruit supporting seat on the rotating disc at the left position is a shell and pulp arranging station. The lower layer frame plate of the rack is provided with a movable discharging push rod below the shell and pulp arranging station. The rack is provided with a blowing nozzle above the shell and pulp arranging station, and is provided with a discharging guide groove opposite to the blowing nozzle. The lower layer frame plate of the rack is provided with two movable positioning rods below the positioning through holes at the left and right positions of the rotating disc. The fruit supporting mechanism is further provided with a horizontal front driven shaft rotatably supported by a bearing seat assembly below the lower layer frame plate of the rack and corresponding to the rotating disc assembly. The front driven shaft is sequentially fixedly connected with a discharging cam, a left positioning cam, a push rod and a right positioning cam from left to right. The position of the discharging cam corresponds to the position of the discharging push rod. The positions of the left and right positioning cams correspond to the positions of the left and right positioning rods respectively. The position of the push rod corresponds to the position of the horizontal star-shaped wheel. The push rod drives the horizontal star-shaped wheel to intermittently rotate one tooth position per rotation. The rotating disc rotates one displacement amount of the fruit supporting seat per rotation of the horizontal star-shaped wheel. The discharging cam and the positioning cam drive the corresponding discharging push rod and the positioning rod to move up once per rotation respectively. The fruit supporting seat is opened and the material is discharged by the upward movement of the discharging push rod. The rotating disc is positioned by the upward movement of the positioning rod.

[0014] The longan kernel removing machine with the floating kernel removing mechanism has the following advantages:

[0015] (1) Since the machine adopts a floating type kernel removing mechanism, that is, the kernel removing forceps assembly of the kernel removing mechanism is pulled by the tension spring, it is elastically floating up and down on the vertical sliding table. When the kernel removing operation is performed on the longan in the kernel removing station, the vertical sliding block drives the kernel removing forceps assembly to move downward, so that the cutter head of the kernel removing forceps penetrates into the longan peduncle downward with the ring-shaped cutting head gathered, and after the cutter head penetrates into the peduncle and encounters the kernel, the kernel removing forceps assembly automatically moves upward elastically under the pushing of the kernel, so that the tension spring is further pulled apart. When the longan of different sizes is encountered, the up and down floating of the kernel removing forceps assembly ensures that the cutter head penetrates into the peduncle to the appropriate depth, so that the phenomenon that the cutter head does not penetrate into the peduncle to the appropriate depth to separate the peduncle from the pulp completely does not occur, and the phenomenon that the cutter head penetrates into the peduncle too much to cause part of the kernel to remain in the pulp and cannot be removed does not occur. Moreover, since the floating type design is adopted, when the cutter head of the kernel removing forceps is opened, the kernel removing forceps assembly is no longer pushed by the kernel, and under the pulling of the tension spring, the kernel removing forceps assembly automatically moves downward to make the longan kernel enter the cutter head, and when the cutter head is gathered to reset the kernel removing forceps, the longan kernel can be taken out, so that it is no longer necessary to additionally set a kernel pushing mechanism, and the kernel pushing mechanism is avoided to damage the longan pulp, so that the appearance of the finally obtained pulp is more complete.

[0016] (2) The kernel removing mechanism of the machine is only provided with two kernel removing forceps. The two kernel removing forceps are intermittently moved back and forth in the left and right two stopping positions of the horizontal sliding frame by the driving of the horizontal sliding block. During the stopping period, the two kernel removing forceps perform the same lifting and opening and closing control. One kernel removing forceps performs the kernel taking operation, and the other kernel removing forceps performs the kernel releasing operation, and the two operations are alternately performed in the two stopping positions. Therefore, the kernel removing mechanism not only reduces the number of kernel removing forceps, but also improves the working efficiency.

[0017] (3) Since the machine adopts the openable and closable fruit supporting seat, after the longan after kernel removal is moved to the shell and pulp discharging station by the fruit supporting seat, the discharging cam controls the upward movement of the discharging push rod, so that the step push rod of the fruit supporting seat moves upward, that is, the claw is opened at the same time, and the longan shell and pulp are pushed out of the claw by the step push rod, and then the longan shell and pulp are discharged by the air blowing nozzle. Since the claw is opened when the longan shell and pulp are pushed by the step push rod, the phenomenon that the longan shell remains in the claw does not occur, so that the next feeding is not affected, and the continuity of production is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the longan kernel removing machine.

[0019] Figure 2 is Figure 1 a front view of the longan kernel removing machine.

[0020] Figure 3 is Figure 1 a left view of the longan kernel removing machine.

[0021] Figure 4For Figure 1 The three-dimensional structure diagram of the longan kernel removing machine after turning 180°.

[0022] Figure 5 The three-dimensional structure diagram of the longan kernel removing mechanism.

[0023] Figure 6 For Figure 5 The front view of the longan kernel removing mechanism.

[0024] Figure 7 The three-dimensional structure diagram of the two-dimensional pneumatic sliding table.

[0025] Figure 8 The three-dimensional structure diagram of the vertical sliding table.

[0026] Figure 9 The three-dimensional structure diagram of the longan kernel removing tongs assembly.

[0027] Figure 10 For Figure 9 The front view of the longan kernel removing tongs assembly.

[0028] Figure 11 For Figure 9 The right view of the longan kernel removing tongs assembly.

[0029] Figure 12 The three-dimensional structure diagram of the longan kernel removing tongs.

[0030] Figure 13 For Figure 12 The left view of the longan kernel removing tongs.

[0031] Figure 14 For Figure 12 The exploded view of the longan kernel removing tongs.

[0032] Figure 15 The three-dimensional structure diagram of the supporting fruit mechanism.

[0033] Figure 16 The three-dimensional structure diagram of the rotating disc assembly.

[0034] Figure 17 The three-dimensional structure diagram of the material discharging push rod.

[0035] Figure 18 The three-dimensional structure diagram of the positioning rod.

[0036] Figure 19 The three-dimensional structure diagram of the supporting fruit seat.

[0037] Figure 20 For Figure 19 The front view of the supporting fruit seat.

[0038] Figure 21 For Figure 19Parts exploded view of the fruit holder.

[0039] Figure 22 For Figure 20 Schematic view of the fruit holder in the fruit entering state.

[0040] Figure 23 For Figure 20 Schematic view of the fruit holder in the fruit entering clamping state.

[0041] Figure 24 For Figure 20 Schematic view of the fruit holder in the fruit shell and pulp discharging state.

[0042] In the figure: 1-frame, 2-rear driven shaft, 3-reduction motor, 4-first chain transmission assembly, 5-second chain transmission assembly, 6-front driven shaft, 7-gas control cam, 8-mechanical gas valve, 9-horizontal moving slide, 10-horizontal moving slide block, 11-vertical moving slide, 12-vertical moving slide block, 13-bottom plate, 14-downward pull rod, 15-vertical guide rail, 16-linear bearing slide block, 17-enclosed bracket, 17.1-upper support plate, 18-tension spring, 19-guide column, 20-horizontal rack plate, 21-stone removing plier push head, 22-stone removing cylinder, 23-stone removing plier, 24-upward pull adjusting bolt, 25-cylindrical cutter seat, 25.1-cutter body accommodating groove, 25.2-cutter shaft accommodating groove, 25.3-cutter body holding spring accommodating groove, 26-push rod, 26.1-lower push head, 26.2-vent hole, 26.3-blowing nozzle, 27-upper joint, 28-gas pipe joint, 29-return spring, 30-cutter blade, 30.1-vertical cutter body, 30.2-cutter shaft, 30.3-inclined cutter body, 30.4-cutter head, 30.5-side blade, 31-cutter body holding spring, 32-vertical rotating shaft, 33-rotating disc, 33.1-positioning through hole, 34-fruit holder, 35-horizontal star wheel, 36-discharge push rod, 37-discharge blowing nozzle, 38-discharge guide groove, 39-positioning rod, 40-discharge cam, 41-positioning cam, 42-shifting rod, 43-universal ball eye bearing, 44-sleeve, 45-cylindrical claw seat, 45.1-staircase center hole, 45.2-claw arm accommodating groove, 45.3-claw arm holding spring accommodating groove, 45.4-claw shaft accommodating groove, 46-flat cover ring, 47-staircase push rod, 47.1-push head, 47.2-guide rod, 47.3-liquid guide hole, 48-claw, 48.1-vertical claw arm, 48.2-claw shaft, 48.3-inclined claw arm, 48.4-claw head, 49-claw arm holding spring, 50-return push head, 51-return cylinder. DETAILED DESCRIPTION

[0043] The application will be further described below with reference to the accompanying drawings. In the description of the application, the terms "front", "rear", "left", "right", "upper", "lower" and the like are based on the orientation of the drawings and are intended for the purpose of illustration only and are not intended to be limiting. Figure 1The 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.

[0044] like Figures 1-4 As shown, this longan pitting machine is equipped with a frame 1 with upper and lower shelves. The frame 1 is equipped with a power mechanism, a pitting mechanism, and a fruit-holding mechanism.

[0045] like Figures 1-4 As shown, the power mechanism has a horizontally lateral rear driven shaft 2 rotatably supported by a bearing seat assembly at a position above the lower shelf of the frame 1. A geared motor 3 is mounted below the lower shelf of the frame 1. The main shaft of the geared motor 3 is connected to the rear driven shaft 2 via a first chain drive assembly 4. The main shaft of the geared motor 3 is also connected to the front driven shaft 6 of the fruit-holding mechanism via a second chain drive assembly 5. The geared motor 3 drives both the front driven shaft 6 and the rear driven shaft 2 to rotate simultaneously. Multiple air control cams 7 are fixedly connected to the rear driven shaft 2 and rotate synchronously with it. Each air control cam 7 has a mechanical air valve 8 with a roller switch on its side. The air inlet of each mechanical air valve 8 is connected to an external air supply, and the air outlet of each mechanical air valve 8 is connected to the corresponding interface of each pneumatic component of the machine. The rotation of the air control cam 7 triggers the mechanical air valve 8 to control the action of each pneumatic component of the machine.

[0046] like Figures 5-11As shown, the kernel removing mechanism adopts a floating kernel removing mechanism which is assembled by a two-dimensional pneumatic slide, a vertical slide and a kernel removing forceps assembly; the two-dimensional pneumatic slide is provided with a horizontal moving slide block 10 which can move left and right along a horizontal moving slide frame 9 and a vertical moving slide block 12 which can move up and down along a vertical moving slide frame 11, the horizontal moving slide frame 9 is fixedly arranged above the middle part of the upper layer shelf plate of the frame 1, and the vertical moving slide frame 11 is fixedly connected to the front side of the horizontal moving slide block 10; the vertical slide is provided with a vertically arranged bottom plate 13 which is fixedly connected to the front side of the vertical moving slide block 12 of the two-dimensional pneumatic slide, the rear side of the bottom plate 13 is fixedly connected with a rearwardly extending lower pull rod 14 at the lower positions of the left and right sides, and the front side of the bottom plate 13 is provided with a vertical guide rail 15 at each of the left and right sides; the kernel removing forceps assembly is provided with a U-shaped support 17 with an opening facing forward, the vertical plate of the U-shaped support 17 is fixedly connected to the front side of the two linear bearing slide blocks 16 of the vertical slide, the upper plate of the U-shaped support 17 further rearwardly extends to form left and right upper support plates 17.1, and the left and right upper support plates 17.1 are respectively connected with the lower pull rods 14 of the vertical slide through the tension springs 18, the U-shaped support 17 is pulled down by the tension springs 18 to elastically abut against the top surface of the bottom plate 13 of the vertical slide, the opening of the U-shaped support 17 is arranged with vertical guide columns 19 at the left and right sides, the two guide columns 19 commonly support a horizontal shelf plate 20 which can slide up and down along the two guide columns 19 in the U-shaped support 17 through sliding bearings, the horizontal shelf plate 20 is fixedly arranged with two downward extending kernel removing forceps push heads 21, a vertically arranged kernel removing cylinder 22 is mounted on the upper plate of the U-shaped support 17, the piston rod of the kernel removing cylinder 22 extends downward and is fixedly connected with the horizontal shelf plate 20, and the lower plate of the U-shaped support 17 is arranged with two downward extending kernel removing forceps 23 which are respectively located directly below the kernel removing forceps push heads 21 of the horizontal shelf plate 20, the horizontal shelf plate 20 is driven by the kernel removing cylinder 22 to synchronously move the two kernel removing forceps push heads 21 up and down, thereby controlling the knife heads of the two kernel removing forceps 23 to synchronously open and close, the upper layer shelf plate of the frame 1 is provided with avoiding openings corresponding to the moving ranges of the vertical moving slide block 12 of the two-dimensional pneumatic slide, the vertical slide and the kernel removing forceps assembly, the horizontal moving slide block 10 of the two-dimensional pneumatic slide intermittently reciprocates between the left and right two stopping positions of the horizontal moving slide frame 9 under the control of the control pneumatic cam 7, when the horizontal moving slide block 10 moves to the left stopping position of the horizontal moving slide frame 9, the left kernel removing forceps 23 is located at the left kernel releasing position and the right kernel removing forceps 23 is located at the kernel removing position, when the horizontal moving slide block 10 moves to the right stopping position of the horizontal moving slide frame 9, the left kernel removing forceps 23 is located at the kernel removing position and the right kernel removing forceps 23 is located at the right kernel releasing position, and the lower layer shelf plate of the frame 1 is provided with a kernel hole for the falling of longan kernels directly below the left and right kernel removing forceps 23.

[0047] Further, the upper support plate 17.1 of the bracket 17 is provided with an opening, the lower end of the tension spring 18 is connected to the lower pull rod 14 of the vertical sliding table through a hanging ring, the upper end of the tension spring 18 is hung on the opening of the upper support plate 17.1 of the bracket 17 through an upper pull adjusting bolt 24, and the tension of the tension spring 18 can be conveniently adjusted by adjusting the upper pull adjusting bolt 24.

[0048] Further, the upper part of the push head 21 of the nucleic dissociation forceps is provided with a threaded rod body, the threaded rod body of the push head 21 of the nucleic dissociation forceps is locked from the upper and lower sides of the horizontal frame plate 20 through two locking nuts after passing through the opening of the horizontal frame plate 20, so as to conveniently adjust the extended length of the push head 21 of the nucleic dissociation forceps.

[0049] As Figures 12-14As shown, the de-nucleating forceps 23 is provided with a vertical cylindrical cutter seat 25 fixedly connected on the bottom surface of the lower plate of the Z-shaped support 17, the cylindrical cutter seat 25 is provided with a central hole, a push rod 26 is slidingly sleeved in the central hole, the lower end of the push rod 26 is provided with a cylindrical lower push head 26.1 larger than the hole diameter of the central hole of the cylindrical cutter seat 25, the upper end rod body of the push rod 26 is upwardly extended after penetrating through the central hole of the cylindrical cutter seat 25 and the corresponding hole of the Z-shaped support 17, the center of the push rod 26 is provided with a through air hole 26.2, the push rod 26 is provided with a downwardly extended air blowing nozzle 26.3 at the outlet of the through air hole 26.2 on the bottom surface of the lower push head 26.1, an upper connector 27 is threadedly connected on the top surface of the push rod 26 at the inlet of the through air hole 26.2, a gas pipe interface 28 is connected on the side surface of the upper connector 27, the inside of the upper connector 27 is provided with a connecting air channel to make the gas pipe interface 28 in communication with the through air hole 26.2 of the push rod 26; a return spring 29 is sleeved on the outer side of the upper end rod body of the push rod 26 between the top surface of the cylindrical cutter seat 25 and the upper connector 27, the lower push head 26.1 of the push rod 26 is pulled upwardly by the return spring 29 to elastically abut against the bottom surface of the cylindrical cutter seat 25; the outer circumference of the cylindrical cutter seat 25 is provided with a vertical strip-shaped groove as a cutter body accommodating groove 25.1 on each of the front, rear, left and right sides, the outer circumference of the cylindrical cutter seat 25 is further provided with two narrow and wide annular grooves, the upper annular groove is a cutter shaft accommodating groove 25.2, and the lower annular groove is a cutter body spring holding accommodating groove 25.3, one piece of cutter blade 30 is installed in each of the cutter body accommodating grooves 25.1; the cutter blade 30 is provided with a vertical cutter body 30.1, the upper end of the vertical cutter body 30.1 is provided with two horizontally extended cutter shafts 30.2, the lower end of the vertical cutter body 30.1 is connected with an inwardly gathered inclined cutter body 30.3, the end of the inclined cutter body 30.3 is connected with a vertically downwardly extended cutter head 30.4, and the lower end of the cutter head 30.4 is provided with a cutting edge; the vertical cutter bodies 30.1 of the four pieces of cutter blade 30 are respectively movably embedded in the four cutter body accommodating grooves 25.1 of the cylindrical cutter seat 25, the cutter shafts 30.2 are movably embedded in the cutter shaft accommodating groove 25.2 of the cylindrical cutter seat 25, the inclined cutter body 30.3 and the cutter head 30.4 are located below the cylindrical cutter seat 25, one or more annular cutter body holding springs 31 are arranged in the cutter body spring holding accommodating groove 25.3 of the cylindrical cutter seat 25, the four pieces of cutter blade 30 are inwardly gathered by the annular cutter body holding springs 31 arranged outside the vertical cutter bodies 30.1 of the four pieces of cutter blade 30, the cutter heads 30.4 are combined together to form an annular cutting head when the four pieces of cutter blade 30 are completely gathered, the lower push head 26.1 of the push rod 26 is located directly above the funnel-shaped frame surrounded by the inclined cutter bodies 30.3 of the four pieces of cutter blade 30, and the air blowing nozzle 26.3 is located directly above the annular cutting head combined by the cutter blades 30, and the opening of the four pieces of cutter blade 30 is controlled by the downward movement of the push rod 26.

[0050] The blade head 30.4 of the front and rear side blades 30 of the 4-piece blade 30 of the de-coring pliers 23 is provided with inwardly curved vertical side edges 30.5 on the left and right sides thereof, when the 4-piece blade 30 is fully closed, the blade head side edges 30.5 of the front and rear side blades 30 form an enclosure, and the blade head 30.4 of the left and right side blades 30 is enclosed in the periphery of the blade head side edges 30.5 of the front and rear side blades 30. When the split blade of the conventional split blade structure cuts into the fruit stem, the cutting effect at the joint of the blade head is not good, and the blade edge at the joint is prone to wear, causing the fruit stem and pulp at this part to be partially adhered after cutting, affecting the final de-coring effect. The blade head joint structure of the de-coring pliers blade can perfectly solve the problem of incomplete cutting at the blade head joint, and can effectively reduce the wear rate of the blade edge at the joint.

[0051] As Figures 15-16As shown, the fruit supporting mechanism is provided with a rotating disc assembly arranged at the front position of the lower layer shelf plate of the frame 1, the rotating disc assembly is provided with a vertical rotating shaft 32 rotatably supported by a bearing block assembly and penetrating through the lower layer shelf plate of the frame 1, the vertical rotating shaft 32 is fixedly sleeved with a horizontal rotating disc 33 at the position above the lower layer shelf plate of the frame 1, the outer disc surface of the rotating disc 33 is provided with a group of annularly spaced fruit supporting seat mounting holes, each fruit supporting seat mounting hole is correspondingly provided with a clamping type fruit supporting seat 34 above, the inner disc surface of the rotating disc 33 is provided with a group of positioning through holes 33.1 corresponding to the fruit supporting seats 34; the vertical rotating shaft 32 is fixedly connected with a horizontal star-shaped wheel 35 at the position below the lower layer shelf plate of the frame 1, the number of teeth of the horizontal star-shaped wheel 35 is equal to the number of the fruit supporting seats 34 on the rotating disc 33 and is a multiple of 4; the fruit supporting seat 34 on the rotating disc 33 is located at the front right position as a pitting station, the center of the pitting station fruit supporting seat 34 is opposite to the center of the pitting tongs 23 above; the fruit supporting seat 34 on the rotating disc 33 is located at the front left position as a shell and pulp discharging station; the lower layer shelf plate of the frame 1 is provided with a vertically movable discharging push rod 36 through a guide sleeve at the position directly below the shell and pulp discharging station fruit supporting seat 34, the frame 1 is provided with a blowing nozzle 37 at the position corresponding to the shell and pulp discharging station fruit supporting seat 34 above, and is provided with a discharging guide groove 38 opposite to the blowing nozzle 37; the lower layer shelf plate of the frame 1 is provided with two left and right vertically movable positioning rods 39 through guide sleeves at the positions directly below the positioning through holes of the rotating disc 33 at the front left and front right positions respectively; the fruit supporting mechanism is further provided with a horizontal transverse front driven shaft 6 rotatably supported by a bearing block assembly at the position corresponding to the rotating disc assembly below the lower layer shelf plate of the frame 1, the front driven shaft 6 is sequentially fixedly connected with a discharging cam 40, a left positioning cam 41, a push rod 42 and a right positioning cam 41 from left to right in sequence, the discharging cam 40 is located corresponding to the discharging push rod 36, the left and right positioning cams 41 are respectively located corresponding to the left and right positioning rods 39, and the push rod 42 is located corresponding to the horizontal star-shaped wheel 35; the push rod 42 drives the horizontal star-shaped wheel 35 to intermittently rotate one tooth position per revolution, the rotating disc 33 rotates following the horizontal star-shaped wheel 35, and the horizontal star-shaped wheel 35 drives the rotating disc 33 to rotate one displacement of the fruit supporting seat 34 per tooth position; the discharging cam 40 and the positioning cam 41 respectively drive the corresponding discharging push rod 36 and the positioning rod 39 to move up once per revolution, the fruit supporting seat 34 is opened and discharging is realized by the upward movement of the discharging push rod 36, and the rotating disc 33 is positioned by the upward movement of the positioning rod 39 to insert into the positioning through hole 33.1 of the rotating disc 33.

[0052] As shown in Figures 2-3 Further, the lower layer shelf plate of the frame 1 is provided with a group of universal ball eye bearings 43 arranged below the rotating disc 33 to rollably support the rotating disc 33 from below, so as to prevent the rotating disc 33 from tilting during rotation.

[0053] As shown in Figure 15and Figures 17-18 As shown in the drawings, the discharge push rod 36 is provided with a vertical discharge main rod, the lower end of the discharge main rod is provided with a pulley and abuts on the discharge cam 40 of the front driven shaft 6 from the upper side through the pulley, one side of the lower end of the discharge main rod is fixedly connected with a downward extending anti-rotation limiting fork head, and the anti-rotation limiting fork head is clamped on the front driven shaft 6; the positioning rod 39 is provided with a vertical positioning main rod, the upper end of the positioning main rod is provided with a large chamfer, the lower end of the positioning main rod is provided with a pulley and abuts on the corresponding positioning cam 41 of the front driven shaft 6 from the upper side through the pulley, one side of the lower end of the positioning main rod is fixedly connected with a downward extending anti-rotation limiting fork head, and the anti-rotation limiting fork head is clamped on the front driven shaft 6.

[0054] As Figures 19-21As shown, the fruit supporting seat 34 is provided with a sleeve 44 vertically penetrating and having upper and lower flanges, the sleeve 44 is fixedly installed on the fruit supporting seat mounting hole of the rotating disc 33 through the lower flange, the lower cylinder opening of the sleeve 44 is provided with a lower stopper flange which is inwardly recessed, the sleeve 44 holds a vertical cylindrical claw seat 45 above the lower stopper flange, the upper flange top surface of the sleeve 44 is fixedly connected with a flat cover ring 46, the inner ring aperture of the flat cover ring 46 is smaller than the inner cylinder aperture of the sleeve 44, the cylindrical claw seat 45 is tightly fixed in the sleeve 44 from the top surface by the flat cover ring 46; the cylindrical claw seat 45 is provided with a stepped center hole 45.1 vertically penetrating and having a large upper part and a small lower part, a stepped push rod 47 penetrating the whole stepped center hole is slidably sleeved in the stepped center hole 45.1, the upper part of the stepped push rod 47 is a push head 47.1 matched with the upper hole of the stepped center hole 45.1, the lower part of the stepped push rod 47 is a guide rod 47.2 matched with the lower hole of the stepped center hole 45.1, the lower end of the guide rod 47.2 extends downward from the lower cylinder opening of the sleeve 44; the outer side circumference of the cylindrical claw seat 45 is provided with a plurality of vertical strip grooves as claw arm accommodating grooves 45.2 which are evenly distributed along the circumference, the outer side circumference of the cylindrical claw seat 45 is further provided with two wide and narrow annular grooves, the upper annular groove is a claw arm spring accommodating groove 45.3, and the lower annular groove is a claw shaft accommodating groove 45.4, one piece of clamping claw 48 is installed in each claw arm accommodating groove 45.2; the clamping claw 48 is provided with a vertical claw arm 48.1, the lower end of the vertical claw arm 48.1 is provided with claw shafts 48.2 horizontally extending to both sides, the upper end of the vertical claw arm 48.1 is connected with an inwardly converging inclined claw arm 48.3, the upper end of the inclined claw arm 48.3 is connected with a claw head 48.4 extending upward, the inner claw surface of the claw head 48.4 is arc-shaped; the vertical claw arm 48.1 of each piece of clamping claw 48 is movably embedded in each claw arm accommodating groove 45.2 of the cylindrical claw seat 45, the claw shaft 48.2 is movably embedded in the claw shaft accommodating groove 45.4 of the cylindrical claw seat 45, the inclined claw arm 48.3 and the claw head 48.4 are located above the cylindrical claw seat 45, the claw arm spring accommodating groove 45.3 of the cylindrical claw seat 45 is provided with one or more annular claw arm clamping springs 49, the vertical claw arms 48.1 of all the clamping claws 48 are clamped by the annular claw arm clamping springs 49 outside to make all the clamping claws 48 simultaneously inwardly converge, the claw head 48.4 of the clamping claw 48 extends above the flat cover ring 46 through the inner ring of the flat cover ring 46; when all the clamping claws 48 are completely converged, the claw heads 48.4 of the clamping claws 48 jointly enclose a spherical ring frame, the inclined claw arms 48.3 of the clamping claws 48 jointly enclose an inverted funnel-shaped frame, the push head 47.1 of the stepped push rod 47 is located directly below the inverted funnel-shaped frame, the smallest aperture surrounded by the upper end of the inverted funnel-shaped frame is smaller than the outer diameter of the push head 47.1 of the stepped push rod 47, the synchronous opening and closing of all the clamping claws 48 are controlled by controlling the upward and downward movement of the stepped push rod 47.

[0055] Preferably, the stepped push rod 47 of the fruit holder 34 has a vertically penetrating liquid guide hole 47.3 at its center, so that the juice flowing out when the longan is pitted can be discharged downward in time from the liquid guide hole 47.3 to avoid contaminating the entire fruit holder 34.

[0056] Preferably, the outer circumference of the cylindrical claw seat 45 of the fruit holder 34 is provided with 6 claw arm receiving grooves 45.2, and 6 petal gripping claws 48 are installed accordingly.

[0057] like Figure 15 As shown, further, the frame 1 is provided with a return push head 50 that can move up and down directly above the corresponding fruit support 34 at the shelling and meat processing station. A return cylinder 51 is connected above the return push head 50 to drive it up and down.

[0058] The working process of this longan pit removal machine is as follows:

[0059] (1) The operator manually places the longan to be pitted on the front end of turntable 33 with the stem facing upwards. Figure 22 On the top surface of the stepped push rod 47 of the fruit holder 34 in the fruit-holding state shown, the longan to be pitted is slightly pressed down, causing the push head 47.1 of the stepped push rod 47 to move down to below the claw head 48.4 of the clamping claw 48. The claw head 48.4 of the clamping claw 48 will automatically retract to clamp and fix the longan to be pitted, allowing the fruit holder to enter as shown. Figure 23 The image shows the clamped state of the fruit. After starting the reduction motor 3, all mechanisms of the machine begin to work together.

[0060] (2) The lever 42 on the front driven shaft 6 rotates once, causing the horizontal star wheel 35 to rotate one tooth position counterclockwise intermittently. The turntable 33 rotates synchronously with the horizontal star wheel 35. Each tooth position rotation of the horizontal star wheel 35 causes the turntable 33 to rotate by the displacement of one fruit holder 34. At the same time, the transverse slider 10 of the two-dimensional pneumatic slide table, under the control of the corresponding air control cam 7, drives the vertical slide table and the de-pitting clamp assembly to move intermittently back and forth between the two stopping positions on the left and right of the transverse slide 9. When the turntable 33 rotates by the displacement of one fruit holder 34, the transverse slider 10 moves transversely once. After the turntable 33 rotates by the displacement of one fruit holder 34, the left and right positioning cams 41 drive the left and right positioning rods 39 to move upward and insert into the corresponding positioning through hole 33.1 of the turntable 33 to position the turntable 33. After the operation of the corresponding station is completed, the positioning rods 39 are controlled to move downward to cancel the positioning of the turntable 33, and the turntable 33 continues to rotate.

[0061] (3) During the residence of the de-nucleating assembly in the residence position, the two de-nucleating pincers 23 perform the same lifting and opening and closing actions under the drive of the vertical sliding block 12 of the two-dimensional pneumatic sliding table and the de-nucleating cylinder 22, when the horizontal sliding block 10 moves to the left residence position of the horizontal sliding carriage 9, the left de-nucleating pincers 23 perform the de-nucleating operation, and the right de-nucleating pincers 23 perform the nucleating operation, when the horizontal sliding block 10 moves to the right residence position of the horizontal sliding carriage 9, the left de-nucleating pincers 23 move to the position of the original right de-nucleating pincers 23 and perform the nucleating operation, and the right de-nucleating pincers 23 perform the de-nucleating operation, and the operations are repeated in this way.

[0062] When the supporting seat 34 clamps the longan to be de-nucleated and moves the rotating disc 33 to the de-nucleating station, the de-nucleating pincers 23 of the de-nucleating station perform the nucleating operation, first, the de-nucleating pincers assembly is driven by the vertical sliding block 12 of the two-dimensional pneumatic sliding table to move downward, the cutter head 30.4 of the de-nucleating pincers 23 penetrates into the longan fruit stem in the form of a gathered ring-shaped cutter head, after the cutter head 30.4 penetrates into the fruit stem and contacts the fruit core, the de-nucleating pincers assembly is elastically moved upward along the vertical sliding table under the pushing of the fruit core, the tension spring 18 is further stretched, since the de-nucleating pincers assembly is elastically floated up and down, as long as the initial tension of the tension spring 18 is adjusted, no matter what size of longan fruit is encountered, the cutter head 30.4 can be just penetrated to the position contacting the fruit core, but will not penetrate the fruit core; then the horizontal frame plate 20 is driven by the de-nucleating cylinder 22 to move the de-nucleating pincers push head 21 downward, the de-nucleating pincers push head 21 drives the push rod 26 of the de-nucleating pincers 23 to move downward through the upper joint 27, the cutter head 30.4 of the 4-petal blade 30 of the de-nucleating pincers 23 is opened to a certain extent, the fruit flesh connected around the fruit stem is expanded by the opened cutter head 30.4, the fruit stem and the fruit flesh are completely separated, after the cutter head 30.4 is opened, the de-nucleating pincers assembly is automatically moved downward under the pulling of the tension spring 18, the longan core enters the cutter head 30.4, then the de-nucleating cylinder 22 drives the de-nucleating pincers push head 21 to move upward to the original position, the push rod 26 of the de-nucleating pincers 23 is automatically moved upward to the original position under the action of the return spring 29, the cutter head 30.4 of the 4-petal blade 30 of the de-nucleating pincers 23 is gathered and clamps the longan core inside, then the vertical sliding block 12 of the two-dimensional pneumatic sliding table drives the de-nucleating pincers assembly to move upward to the original position, the longan core is completely taken out from the longan.

[0063] After the nucleating operation, the de-nucleating pincers 23 are horizontally moved to the next residence position to perform the de-nucleating operation, when the cutter head 30.4 of the 4-petal blade 30 of the de-nucleating pincers 23 is opened, the high-pressure air blown by the air blowing nozzle 26.3 of the push rod 26 controlled by the corresponding control air cam 7 blows the fruit core clamped in the cutter head 30.4 downward and discharges it.

[0064] (4), when the fruit holder 34 holds the de-nucleated longan and moves to the shell and pulp discharging station with the rotating disc 33, the discharging cam 40 controls the discharging push rod 36 to move upwards, and the step push rod 47 of the fruit holder 34 moves upwards, so that the longan shell and pulp can be pushed out of the claw 48 by the step push rod 47 while the claw 48 is controlled to open, and the fruit holder 34 forms the shell and pulp discharging state as shown in Figure 24 , then the longan shell and pulp is blown away by the side blowing nozzle 37, and falls into the discharging guide groove 38 for discharging. After the step push rod 47 moves to the position, the discharging cam 40 controls the discharging push rod 36 to move downwards and retract, and the step push rod 47 is kept in position by the clamping of the claw 48 to the push head 47.1.

[0065] (5), after the fruit holder 34 of the shell and pulp discharging station discharges the longan shell and pulp, the return push head 50 driven by the return cylinder 51 moves downwards, pushes the step push rod 47 of the fruit holder 34 to move downwards by a certain distance, and the fruit holder 34 returns to the fruit entering state as shown in Figure 22 . The setting of the fruit entering state can keep the claw head 48.4 of the claw 48 open to facilitate fruit placing, and shorten the stroke of the longan when manually placed by the clamp, so that the operation is more convenient.

[0066] The above examples are only typical embodiments of the present application, and are not used to limit the present application, and any modification or equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A longan pitting machine employing a floating pitting mechanism, characterized in that: The longan core removing machine is provided with a frame with upper and lower frame plates, a power mechanism, a core removing mechanism and a fruit supporting mechanism; The power mechanism is rotatably supported by a bearing seat assembly at a rear position above the lower frame plate of the frame, a speed reducer motor is arranged below the lower frame plate, the main shaft of the speed reducer motor is connected with the rear driven shaft through a first chain transmission assembly, and the main shaft of the speed reducer motor is also connected with the front driven shaft of the fruit supporting mechanism through a second chain transmission assembly, so that the front driven shaft and the rear driven shaft are simultaneously driven to rotate by the speed reducer motor; a plurality of gas control cams are fixedly connected with the rear driven shaft and rotate synchronously with the rear driven shaft, a mechanical gas valve with a roller switch is arranged beside each gas control cam, the air inlet of each mechanical gas valve is connected with an external air supply, and the air outlets of the mechanical gas valves are respectively connected with corresponding interfaces of the pneumatic elements of the machine, so that the actions of the pneumatic elements of the machine are controlled by rotating the gas control cams to touch the mechanical gas valves. The floating type 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 capable of moving left and right along a horizontal slide frame and a vertical moving slide block capable of moving up and down along a vertical slide frame, the horizontal slide frame is fixedly arranged above the middle part of an upper layer frame plate of a machine frame, and the vertical slide frame is fixedly connected to the front side of the horizontal moving slide block; 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 to a rear downward pull rod at the lower positions of the left and right sides, and the front side of the bottom plate is provided with a vertical guide rail at each of the left and right sides; the kernel removing clamp assembly is provided with a U-shaped support with an opening facing forward, 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 upper plate of the U-shaped support further extends rearward to form left and right upper support plates, and the left and right upper support plates are respectively connected to the downward pull rods of the left and right sides of the vertical slide through tension springs, so that 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; the opening of the U-shaped support is arranged with vertical guide columns at the left and right sides, the two guide columns commonly support a horizontal frame plate capable of moving up and down along the two guide columns in the U-shaped support through a sliding bearing, the horizontal frame plate is fixedly arranged with two downward extending kernel removing clamp push heads, 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 to the horizontal frame plate, and the lower plate of the U-shaped support is arranged with two downward extending kernel removing clamps, the two kernel removing clamps are respectively arranged 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 up and down with the two kernel removing clamp push heads, so as to synchronously open and close the cutter heads of the two kernel removing clamps; the upper layer frame plate of the machine frame is provided with an avoiding opening corresponding to the moving range of the vertical moving slide block of the two-dimensional pneumatic slide, the vertical slide and the kernel removing clamp assembly; the horizontal moving slide block of the two-dimensional pneumatic slide is intermittently reciprocated at the left and right two stopping positions of the horizontal slide frame under the control of a control cam, when the horizontal moving slide block moves to the left stopping position of the horizontal slide frame, the left kernel removing clamp is arranged at a left kernel releasing position and the right kernel removing clamp is arranged at a kernel removing position; when the horizontal moving slide block moves to the right stopping position of the horizontal slide frame, the left kernel removing clamp is arranged at the kernel removing position and the right kernel removing clamp is arranged at a right kernel releasing position; the lower layer frame plate of the machine frame is provided with a kernel hole for the falling of longan kernels below the kernel removing clamps of the left and right kernel releasing positions. The rotating disc assembly is arranged at the front position of the lower layer shelf plate of the frame, and is provided with a vertical rotating shaft which is rotatably supported by the bearing block assembly and penetrates the lower layer shelf plate of the frame. The vertical rotating shaft is fixedly connected with a horizontal rotating disc above the lower layer shelf plate of the frame. A group of annularly spaced and uniformly distributed fruit supporting seat mounting holes are arranged on the outer disc surface of the rotating disc. A corresponding fruit supporting seat is arranged above each fruit supporting seat mounting hole. A group of positioning through holes corresponding to the fruit supporting seats are arranged on the inner disc surface of the rotating disc. The horizontal star-shaped wheel is fixedly connected with the vertical rotating shaft below the lower layer shelf plate of the frame. The number of the teeth of the horizontal star-shaped wheel is equal to the number of the fruit supporting seats on the rotating disc and is a multiple of 4. The fruit supporting seat on the rotating disc located at the front is a kernel removing station, and the center of the kernel removing station is opposite to the center of the kernel removing pliers above. The fruit supporting seat on the rotating disc located at the left is a shell and pulp arranging station. The discharging push rod which can move up and down is arranged below the lower layer shelf plate of the frame corresponding to the fruit supporting seat of the shell and pulp arranging station through a guide sleeve. The blowing nozzle is arranged above the lower layer shelf plate of the frame corresponding to the fruit supporting seat of the shell and pulp arranging station. The discharging guide groove is arranged opposite to the blowing nozzle. The positioning rods which can move up and down are arranged below the lower layer shelf plate of the frame corresponding to the positioning through holes of the rotating disc through guide sleeves. The front driven shaft is rotatably supported by the bearing block assembly below the lower layer shelf plate of the frame corresponding to the rotating disc assembly. The discharging cam, the left positioning cam, the push rod and the right positioning cam are sequentially fixedly connected with the front driven shaft from left to right and rotate synchronously with the front driven shaft. The position of the discharging cam corresponds to the position of the discharging push rod. The positions of the left and right positioning cams correspond to the positions of the left and right positioning rods respectively. The position of the push rod corresponds to the position of the horizontal star-shaped wheel. The push rod drives the horizontal star-shaped wheel to intermittently rotate one tooth position per rotation. The rotating disc rotates synchronously with the horizontal star-shaped wheel. The horizontal star-shaped wheel drives the rotating disc to rotate one displacement of the fruit supporting seat per rotation. The discharging cam and the positioning cam drive the corresponding discharging push rod and the positioning rod to move up once per rotation respectively. The fruit supporting seat is opened and the material is discharged by the upward movement of the discharging push rod. The rotating disc is positioned by the upward movement of the positioning rod. The de-nucleation forceps are 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 corresponding hole of the H-shaped support and the central hole of the cylindrical tool holder, 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 extended 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 an air pipe interface, the inside of the upper connector is provided with a connecting air channel to connect the air 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 a 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 narrow and wide annular grooves, 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 is horizontally extended to both sides, the lower end of the vertical tool body is connected to an inwardly gathered inclined tool body, the end of the inclined tool body is connected to a vertically downwardly extended 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, one or more annular tool body spring accommodating grooves are arranged in the tool body spring accommodating groove of the cylindrical tool holder, the tool body spring accommodating grooves are arranged outside the vertical tool bodies of the four pieces of blade to make the four pieces of blade inwardly gather, the tool heads are combined together to form an annular cutting head when the four pieces of blade are completely gathered, the lower push head of the push rod is located directly above the funnel-shaped frame which is surrounded by the inclined tool bodies of the four pieces of blade, the air blowing nozzle is located directly above the annular cutting head which is combined by 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 longan de-coring machine with floating de-nucleating mechanism according to claim 1, characterized in that: 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, the side edges of the tool heads of the front and rear blades form a surrounding when the four pieces of blade are completely gathered, and the tool heads of the left and right blades are combined and surrounded outside the side edges of the tool heads of the front and rear blades.

3. The longan de-coring machine with floating de-nucleating mechanism according to claim 1, characterized in that: 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.

4. The longan de-coring machine with floating de-nucleating mechanism according to claim 1, characterized in that: The discharge push rod is provided with a vertical discharge main rod, the lower end of the discharge main rod is provided with a pulley and is abutted on the discharge cam of the front driven shaft from the upper side, one side of the lower end of the discharge main rod is fixedly connected with a downward extending anti-rotation limiting fork head, and the anti-rotation limiting fork head is clamped on the front driven shaft.

5. The longan de-coring machine with floating de-nucleating mechanism according to claim 1, characterized in that: The fruit supporting seat is provided with a sleeve vertically penetrating and provided with upper and lower flanges, the sleeve is fixedly installed on the fruit supporting seat mounting hole of the rotating disc through the lower flange, the lower cylinder opening of the sleeve is provided with a circle of inwardly recessed lower stop rails, the sleeve holds a vertical cylindrical claw seat above the lower stop rails, the upper flange top surface of the sleeve is fixedly connected with a flat cover ring, the inner circle hole diameter of the flat cover ring is smaller than the inner cylinder hole diameter of the sleeve, the cylindrical claw seat is tightly fixed in the sleeve from the top surface by the flat cover ring, the cylindrical claw seat is provided with a stepped center hole penetrating up and down and being large at the top and small at the bottom, a stepped push rod penetrating through the whole stepped center hole is slidably sleeved in the stepped center hole, the upper part of the stepped push rod is a push head matched with the upper hole of the stepped center hole, the lower part of the stepped push rod is a guide rod matched with the lower hole of the stepped center hole, the lower end of the guide rod extends downward from the lower cylinder opening of the sleeve, the outer circumference of the cylindrical claw seat is provided with a plurality of vertical strip grooves distributed along the circumference as claw arm accommodating grooves, the outer circumference of the cylindrical claw seat is further provided with two wide and narrow annular grooves, the upper annular groove is a claw arm spring accommodating groove, and the lower annular groove is a claw shaft accommodating groove, one claw arm is installed in each claw arm accommodating groove, the claw arm is provided with a vertical claw arm, the lower end of the vertical claw arm is provided with claw shafts horizontally extending to both sides, the upper end of the vertical claw arm is connected with an inwardly gathered inclined claw arm, the upper end of the inclined claw arm is connected with a claw head extending upward, the inner claw surface of the claw head is arc-shaped, the vertical claw arms of the claws are respectively movably embedded in the claw arm accommodating grooves of the cylindrical claw seat, the claw shafts are movably embedded in the claw shaft accommodating groove of the cylindrical claw seat, the inclined claw arm and the claw head are located above the cylindrical claw seat, the claw arm spring accommodating groove in the cylindrical claw seat is provided with more than one annular claw arm holding spring, the vertical claw arms of all the claws are ringed outside by the claw arm holding spring to make all the claws simultaneously inwardly gather, the claw head of the claw passes through the inner circle of the flat cover ring and extends upward above the flat cover ring, when all the claws are completely gathered, the claw heads of the claws jointly enclose a spherical ring frame, the inclined claw arms of the claws jointly enclose an inverted funnel-shaped frame, the push head of the stepped push rod is located directly below the inverted funnel-shaped frame, the smallest diameter enclosed by the upper end of the inverted funnel-shaped frame is smaller than the outer diameter of the push head of the stepped push rod, and the synchronous opening and closing of all the claws are controlled by controlling the upward and downward movement of the stepped push rod.

6. The longan de-coring machine with floating de-nucleating mechanism according to claim 5, characterized in that: The stepped push rod of the fruit supporting seat is provided with a liquid guiding hole penetrating up and down.

7. The machine for de-coring longan according to claim 1, wherein: The machine frame is provided with a return push head movably moving up and down above the fruit supporting seat of the shell discharging and meat discharging station, and the return cylinder is connected above the return push head to drive the return push head to move up and down.

8. The longan de-coring machine with floating de-nucleating mechanism according to claim 1, characterized in that: The lower layer shelf plate of the rack is provided with a set of universal ball eye bearings below the position corresponding to the rotating disc to roll support the rotating disc from below.

Images