CN209788414U - Core penetrating machine for fresh lotus seeds - Google Patents

Abstract

The utility model provides a bright lotus seeds core penetrating machine belongs to bright lotus seeds core penetrating machine technical field. The lotus seed core penetrating device solves the problems that the existing lotus seed core penetrating process is not convenient enough and cannot complete automatic processing. This core machine is worn to bright lotus seeds includes the frame and sets up feed mechanism, conveying mechanism, clamping position mechanism, the mechanism of wearing the core, detection mechanism and controlling means in the frame, and feed mechanism can place a plurality of lotus seeds and can see these lotus seeds out one by one, and conveying mechanism can transport the lotus seeds on clamping position mechanism, and clamping position mechanism can be ajusted and step up the lotus seeds, and the mechanism of wearing the core can separate the plumula nelumbinis on the lotus seeds and play, and detection mechanism can detect the lotus seeds and whether accomplish coring technology. Compared with the prior art, the fresh lotus seed core penetrating machine can automatically finish the core penetrating effect of lotus seeds one by one after a large amount of lotus seeds are thrown, the whole process is carried out fully automatically, people do not need any operation except feeding, and the lotus seed core penetrating machine is very convenient and fast.

Description

Core penetrating machine for fresh lotus seeds

Technical Field

The utility model belongs to the technical field of agricultural mechanical equipment, a bright lotus seeds core penetrating machine is related to.

Background

Lotus seed has the effects of tonifying spleen, checking diarrhea, stopping leukorrhagia, tonifying kidney, arresting seminal emission, nourishing heart and tranquilizing mind, and is commonly used in medicines and foods. The lotus seed after shelling needs to be subjected to coring treatment, otherwise, the bitter taste of the lotus seed core can permeate into food when the lotus seed is eaten, and the flavor and the taste of the lotus seed are influenced. The lotus plumule has high medicinal value, can be used as a medicinal material, and is expensive. However, the existing lotus seed coring technology is relatively backward and is manual operation, so that the production efficiency is low, time and labor are wasted, unnecessary waste is often caused, the taken lotus seed cores are often damaged, the integrity of the lotus seed cores cannot be guaranteed, and lotus meat is also damaged to a great extent. In the prior art, various lotus seed core penetrating machines for penetrating lotus seeds also appear, but most of the existing lotus seed core penetrating machines on the market are complex in structure, large in size and high in price.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a to current lotus seeds process of wearing the core convenient inadequately, can not accomplish automated processing's problem, and the bright lotus seeds core-pulling machine that proposes.

The purpose of the utility model can be realized by the following technical proposal:

The utility model provides a bright lotus seed coring machine, a serial communication port, including the frame and set up the feed mechanism in the frame, conveying mechanism, clamping position mechanism, coring mechanism, detection mechanism and controlling means, controlling means and feed mechanism, clamping position mechanism, the former driving link electric connection in the coring mechanism can control them and carry out coordinated work, feed mechanism can place a plurality of lotus seeds and can send these lotus seeds out one by one, conveying mechanism can transport the lotus seeds to clamping position mechanism, clamping position mechanism can be ajusted the lotus seeds and step up, coring mechanism can separate the lotus seeds core on the lotus seeds and go out, detection mechanism can detect whether the lotus seeds accomplish coring technology.

In the core piercing machine for fresh lotus seeds, the feeding mechanism comprises a feeding hopper, a feeding turntable, a guiding limit cover, a feeding rotating shaft and a feeding driving motor, the feeding driving motor is electrically connected with the control device and is fixedly arranged on the frame together with the feeding hopper and the guiding limit cover, the feeding rotating shaft is horizontally and rotatably arranged on the frame and is connected with a main shaft of the feeding driving motor, the guiding limit cover is fixedly sleeved on the feeding rotating shaft, a plurality of transfer grooves allowing lotus seeds to enter are formed in the periphery of the feeding turntable in an equal-circumference array manner, the transfer grooves can be aligned with an outlet of the feeding hopper in the rotating process of the feeding turntable, the guiding limit cover is provided with a guide groove and forms a cover shape through the guide groove, a part of the outer circumference of the feeding turntable is covered by the guiding limit cover, and the outer circumference surface of the feeding turntable is attached to the bottom surface of the guide groove of the guiding limit cover, and at least one transfer groove is arranged in the guide groove in the rotating process of the feeding turntable.

In the fresh lotus seed core penetrating machine, the transfer groove is in a strip shape with the width and the depth gradually reduced from front to back, the part with the maximum width and the maximum depth in front of the transfer groove is enough for one lotus seed to enter, and no lotus seed can enter any other position.

In the core pulling machine for fresh lotus seeds, the conveying mechanism comprises a first guide rail, a second guide rail and two limiting clamp plates, two ends of the first guide rail are respectively butted with the feeding mechanism and the clamping and positioning mechanism, one end of the second guide rail is butted with the clamping and positioning mechanism, the two limiting clamp plates are two, one end of each limiting clamp plate is butted with the end part of the corresponding guide limiting cover and can limit and guide the lotus seeds falling out of the feeding turntable to the first guide rail, and the distance between the two limiting clamp plates is consistent with the maximum width of the transfer groove.

In the core pulling machine for fresh lotus seeds, the clamping and positioning mechanism comprises four clamping and centering wheels which are positioned at four virtual rectangular corners, a gap is formed between the four clamping and centering wheels, the gap is in butt joint with the conveying mechanism, the width of the gap is enough to clamp one lotus seed, and the clamping and positioning mechanism further comprises a centering driving part for driving the four clamping and centering wheels to synchronously rotate in the same direction and a locking driving part for driving the two centering wheels positioned above to lift.

in foretell fresh lotus seed core penetrating machine, locking drive part include elevator, buffer block and lift drive actuating cylinder, two rotate to set up on the elevator and other two rotate to set up on the buffer block among above-mentioned four centre gripping pendulum wheel, the buffer block goes up and down to slide to set up on the support and be equipped with first elastic component between buffer block and the support, the elevator goes up and down to slide to set up on the support and be equipped with the second elastic component between elevator and the support, lift drive actuating cylinder sets firmly on the support and its piston rod is connected with the elevator and can drive the elevator and go up and down.

In the fresh lotus seed core pulling machine, the centering driving part comprises a first centering driving motor, a first speed changer, a second centering driving motor, a second speed changer and four universal couplings, the first centering driving motor, the first speed changer, the second speed changer and the four universal couplings are fixedly arranged on the rack, the first centering driving motor is connected with the first speed changer, output shafts of the first centering driving motor and the first speed changer are connected to two clamping centering wheels on the lifting block through two of the universal couplings, the second centering driving motor is connected with the second speed changer, and output shafts of the second centering driving motor and the second speed changer are connected to two clamping centering wheels on the buffer block through the other two universal couplings.

In foretell fresh lotus seed core penetrating machine, core penetrating mechanism drive actuating cylinder, carry and drive actuating cylinder, core needle and air pump including counterpointing, counterpoint drive actuating cylinder and fix and set up in the frame, carry drives actuating cylinder and connects on counterpointing the piston rod that drives actuating cylinder and can carry out elevating movement under the drive of counterpointing drive actuating cylinder, the core needle is connected on the piston rod that carries drive actuating cylinder and can carry out concertina movement under the drive of carry drive actuating cylinder, the inside cavity of core needle, the air pump sets firmly in the frame and communicates with the core needle, the direction of motion of core needle makes it be close to or keep away from the lotus seeds of centre gripping on centre gripping positioning mechanism.

In the core pulling machine for fresh lotus seeds, the detection mechanism comprises a detection driving cylinder and a visual detector, the detection driving cylinder is fixedly arranged on the rack, the visual detector is connected to a piston rod of the detection driving cylinder, a front end detection part of the visual detector faces to one side of the lotus seeds on the clamping and positioning mechanism, and the visual detector can move to the front end detection part to align to the lotus seeds on the clamping and positioning mechanism under the action of the detection driving cylinder.

In the core pulling machine for fresh lotus seeds, the control device comprises a PLC control component and a control panel, wherein the driving components in the feeding mechanism, the clamping and positioning mechanism, the core pulling mechanism and the detection mechanism are electrically connected with the control panel, and the control panel is fixedly arranged on and exposed out of the shell of the rack.

Compared with the prior art, the fresh lotus seed core penetrating machine can automatically finish the core penetrating effect of lotus seeds one by one after a large amount of lotus seeds are thrown, the whole process is carried out fully automatically, people do not need any operation except feeding, and the lotus seed core penetrating machine is very convenient and fast.

Drawings

Fig. 1 is a schematic view of the whole structure of the fresh lotus seed core-pulling machine.

Fig. 2 is a front view structure schematic diagram of the fresh lotus seed core-pulling machine after the shell is removed.

Fig. 3 is a schematic view of the structure of the fresh lotus seed core-pulling machine from the rear perspective after the shell is removed.

Fig. 4 is a schematic view of the fresh lotus seed core pulling machine from the top with the shell removed.

Fig. 5 is a front view structure diagram of the feeding mechanism.

Fig. 6 is a rear view structural schematic diagram of the feeding mechanism.

Fig. 7 is a schematic view from above of the feeding mechanism.

Fig. 8 is a schematic structural view of the clamp positioning mechanism.

In the figure, 1, a frame; 2. a feed hopper; 3. a feed turntable; 4. a guide limit cover; 5. A feeding rotating shaft; 6. a feed drive motor; 7. a transfer tank; 8. a first guide rail; 9. A second guide rail; 10. a limiting clamp plate; 11. clamping the straightening wheel; 12. a lifting block; 13. A buffer block; 14. a lifting driving cylinder; 15. a first elastic member; 16. a second elastic member; 17. a first yaw drive motor; 18. a second yaw drive motor; 19. a universal coupling; 20. aligning and driving the air cylinder; 21. a carry driving cylinder; 22. threading a core needle; 23. Detecting a driving cylinder; 24. a vision detector; 25. a control panel.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-4, the fresh lotus seed core penetrating machine comprises a machine frame 1, a feeding mechanism arranged on the machine frame 1, a conveying mechanism, a clamping and positioning mechanism, a core penetrating mechanism, a detection mechanism and a control device, wherein the control device is electrically connected with the feeding mechanism, the clamping and positioning mechanism and a driving part in the core penetrating mechanism and can control the feeding mechanism, the clamping and positioning mechanism and the driving part to work in a coordinated manner, the feeding mechanism can place a plurality of lotus seeds and can send the lotus seeds out one by one, the conveying mechanism can convey the lotus seeds onto the clamping and positioning mechanism, the clamping and positioning mechanism can align and tighten the lotus seeds, the core penetrating mechanism can separate the lotus seeds on the lotus seeds, and the detection mechanism can detect whether the lotus seeds complete a core taking process.

In this equipment, the lotus seed can only be processed to a processing procedure of mechanism of loosing core, so send into at every turn also can only have a lotus seed in the clamping and positioning mechanism, the design purpose of this product is, pour into a feeder hopper 2 with a large batch lotus seed, then people just do not need any operation after the start machine, so send out this process automatically one by one with the lotus seed in these large batch lotus seeds and just become very critical design point, in order to realize pay-off one by one, this design has adopted following structure:

as shown in fig. 5-7, the feeding mechanism comprises a feeding hopper 2, a feeding turntable 3, a guiding limit cover 4, a feeding rotating shaft 5 and a feeding driving motor 6, the feeding driving motor 6 is electrically connected with the control device and is fixedly arranged on the frame 1 together with the feeding hopper 2 and the guiding limit cover 4, the feeding rotating shaft 5 is horizontally and rotatably arranged on the frame 1 and is connected with a main shaft of the feeding driving motor 6, the guiding limit cover 4 is fixedly sleeved on the feeding rotating shaft 5, a plurality of transfer slots 7 for only one lotus seed to enter are arranged on the periphery of the feeding turntable 3 in an equal-circumference array form, the transfer slots 7 can be aligned with an outlet of the feeding hopper 2 in the rotating process of the feeding turntable 3, a guiding slot is arranged on the guiding limit cover 4 and forms a cover shape through the guiding slot, a part of the outer circumference of the feeding turntable 3 is covered by the guiding limit cover 4, the outer circumference surface of the feeding turntable 3 is attached to the bottom surface of the guiding, and at least one transfer groove 7 is arranged in the guide groove in the rotating process of the feeding turntable 3.

The working principle of the structure is analyzed by combining the accompanying drawings: firstly, a large amount of lotus seeds are accumulated in the feed hopper 2, the outlet of the feed hopper 2 is right below, so the lotus seeds in the feed hopper 2 can be connected only by designing a cavity part capable of receiving the lotus seeds below the outlet, the design adopts the way that the transfer groove 7 is arranged on the peripheral ring of the feed turntable 3, when the transfer groove 7 moves to be vertically aligned with the outlet of the feed hopper 2, the lotus seeds in the feed hopper 2 fall into the transfer groove 7, just enough lotus seeds fall into the space of the transfer groove 7, so the lotus seeds at the back cannot enter, then the feed turntable 3 continues to rotate, after the transfer groove 7 rotates, the peripheral ring of the feed turntable 3 is attached to the outlet of the feed hopper 2, the effect of blocking the outlet of the feed hopper 2 is realized, and before the transfer groove 7 can fall out from the side under the action of gravity after being turned to a certain angle, in order to control the purpose that the lotus seeds in the transferring groove 7 can not be allowed to fall out after turning over to what degree, the outer ring of the feeding turntable 3 is fixedly provided with a guiding limit cover 4, the lotus seeds in the transferring groove 7 are blocked by the guiding limit cover 4 and cannot fall out in a path diagram where the guiding limit cover 4 is located, and the transferring groove 7 is separated from the guiding limit cover 4 until the feeding turntable 3 continuously rotates, so that the lotus seeds can not be allowed to fall out, therefore, the guiding limit cover 4 is adopted in the design to limit the output direction of the lotus seeds, the lotus seeds can accurately fall onto the transferring mechanism, and the lotus seeds turned out at different height angles have different momentum, namely the lotus seeds can be turned out at different angles, degrees and spans, and the variables of the lotus seeds turned out are controlled by adopting a method of the guiding limit cover 4, optimizing the adjustment gradually, can link up with subsequent conveying mechanism and centre gripping positioning mechanism better.

It is worth mentioning that the feeding mechanism is provided with the transferring grooves 7 equally spaced on the outer circumference of the feeding turntable 3, firstly, the design key point of the two-character interval is to ensure that a certain gap time exists between the lotus seed which is sent into the clamping and positioning mechanism before and the lotus seed which is sent into the clamping and positioning mechanism after the lotus seed is sent into the clamping and positioning mechanism, the gap time can ensure that the lotus seed is processed before, the equal two characters are used for reducing the design requirement of the feeding driving motor 6, the feeding driving motor 6 can adopt a common motor set to a certain rotating speed, a servo motor with a speed adjusting function is not required to be adopted, even the feeding driving motor is not required to be connected with a control device, in the whole working process, the feeding driving motor 6 can complete feeding without stopping and program alignment control and always rotate.

In the actual operation process, although the sizes of the lotus seeds put into the feed hopper 2 are the same under an ideal state, the actual sizes are different, so in order to meet the processing requirement, the size of the transfer groove 7 is designed by taking the largest lotus seed size as a standard, so that the lotus seeds of any size can be ensured to fall into the transfer groove, however, two sizes with smaller sizes can fall into the transfer groove 7, wherein one lotus seed at the lower part completely falls into the transfer groove, one lotus seed at the upper part is overlapped on the lotus seed at the lower part, a part of the bottom of the lotus seed is positioned in the transfer groove 7, at the moment, the feeding turntable 3 continuously rotates, the lotus seed at the upper part moves along with the transfer groove, and in the process that the top edge of the transfer groove 7 and the bottom edge of the outlet of the feed hopper 2 are turned over, the lotus seed is subjected to twisting force generated by the edges of the two parts, the lotus seeds are at a certain risk of being crushed, and are like being positioned between the scissors.

Therefore, in order to solve the problem, the feeding mechanism also provides a very critical design element to prevent the problem that two small-sized lotus seeds falling into the transfer tank 7 at the same time and located above the lotus seeds may be crushed, and the design structure is as follows:

The transfer groove 7 is in a strip shape with the width and the depth gradually reduced from front to back, the maximum part of the width and the depth in front of the transfer groove 7 is enough for one lotus seed to enter, and the maximum part of the width and the depth in front of the transfer groove 7 is not enough for one lotus seed to enter.

The design method is that the transfer groove 7 is formed into a long groove body, the size depth in front of the transfer groove 7 is enough for a lotus seed with the maximum size to fall into the transfer groove to realize the feeding effect, and the size depth and the width at the rear end of the transfer groove 7 can be gradually reduced, so that if a certain lotus seed is stacked above the lotus seed in the transfer groove 7 and the part of the lotus seed is positioned in the transfer groove 7, the lotus seed can not be directly ground by the continuous rotation of the feeding rotary disc 3, but can be gradually lifted and gradually retreated under the action of the long groove at the rear end of the transfer groove 7, and then the lotus seed slowly retreats from the transfer groove 7 and returns to the feeding hopper 2.

As shown in fig. 2 to 4, the conveying mechanism includes a first guide rail 8, a second guide rail 9 and a limit clamp plate 10, two ends of the first guide rail 8 are respectively butted with the feeding mechanism and the clamping and positioning mechanism, one end of the second guide rail 9 is butted with the clamping and positioning mechanism, the limit clamp plate 10 has two pieces, one end of the limit clamp plate 10 is butted with the end of the guide limit cover 4 and can limit and guide the lotus seeds falling from the feeding turntable 3 onto the first guide rail 8, and the distance between the two limit clamp plates 10 is consistent with the maximum width of the transfer groove 7.

As shown in fig. 2 to 4 and 8, the clamping and positioning mechanism includes four clamping and aligning wheels 11 positioned at four corners of a virtual rectangle, a gap is formed between the four clamping and aligning wheels 11, the gap is in butt joint with the conveying mechanism, the width of the gap is sufficient to clamp a lotus seed, and the clamping and positioning mechanism further includes an aligning driving part for driving the four clamping and aligning wheels 11 to synchronously rotate in the same direction and a locking driving part for driving the two aligning wheels positioned above to lift.

Wherein, locking drive part includes elevator 12, buffer block 13 and lift drive actuating cylinder 14, two of above-mentioned four centre gripping ajust wheels 11 rotate to set up on elevator 12 and two other rotations set up on buffer block 13, buffer block 13 goes up and down to slide and sets up on the support and be equipped with first elastic component 15 between buffer block 13 and the support, elevator 12 goes up and down to slide and set up on the support and be equipped with second elastic component 16 between elevator 12 and the support, lift drive actuating cylinder 14 sets firmly on the support and its piston rod is connected with elevator 12 and can drive elevator 12 and go up and down.

The straightening driving part comprises a first straightening driving motor 17, a first speed changer, a second straightening driving motor 18, a second speed changer and four universal couplings 19, wherein the first straightening driving motor 17, the first speed changer, the second straightening driving motor 18, the second speed changer and the four universal couplings 19 are fixedly arranged on the frame 1, the first straightening driving motor 17 is connected with the first speed changer, output shafts of the first straightening driving motor and the first speed changer are connected to two clamping straightening wheels 11 on the lifting block 12 through the two universal couplings 19, the second straightening driving motor and the second speed changer are connected, and output shafts of the second straightening driving motor and the second speed changer are connected to the two clamping straightening wheels 11 on the buffer block 13 through the.

Before the lotus seeds roll to the clamping and positioning mechanism from the first guide rail 8, firstly, the lifting driving air cylinder 14 lifts and moves back the two clamping and aligning wheels 11 on the lifting block 12, then the lotus seeds fall onto the two clamping and aligning wheels 11 on the buffer block 13, then the lifting block 12 descends to clamp the lotus seeds among the four clamping and aligning wheels 11, at the moment, the first aligning driving motor 17 and the second aligning driving motor 18 are started to enable the four clamping and aligning wheels 11 to synchronously rotate in the same direction and align the lotus seeds, the aligning state enables lotus plumules of the lotus seeds to be parallel to the rotating main shafts of the four clamping and aligning wheels 11, the clamping and aligning wheels 11 stop rotating after the lotus seeds are aligned, and at the moment, the clamping and positioning mechanisms play a clamping effect.

As shown in fig. 2 to 4, the core-piercing mechanism includes an alignment driving cylinder 20, a carry driving cylinder 21, a piercing needle 22 and an air pump, the alignment driving cylinder 20 is fixedly disposed on the frame 1, the carry driving cylinder 21 is connected to a piston rod of the alignment driving cylinder 20 and can be driven by the alignment driving cylinder 20 to perform a lifting motion, the piercing needle 22 is connected to a piston rod of the carry driving cylinder 21 and can be driven by the carry driving cylinder 21 to perform a telescopic motion, the piercing needle 22 is hollow inside, the air pump is fixedly disposed on the frame 1 and is communicated with the piercing needle 22, and the piercing needle 22 moves in a direction close to or away from the lotus seed clamped on the clamping and positioning mechanism.

Then, the plumula Nelumbinis is passed through the head of the lotus seed by the plumula Nelumbinis passing needle 22 under the action of the alignment driving cylinder 20 and the carry driving cylinder 21, and the plumula Nelumbinis is blown out by starting the air pump, thereby completing the plumula passing effect.

As shown in fig. 2 to 4, the detecting mechanism includes a detecting driving cylinder 23 and a visual detecting instrument 24, the detecting driving cylinder 23 is fixedly disposed on the frame 1, the visual detecting instrument 24 is connected to a piston rod of the detecting driving cylinder 23, a detecting portion of a front end of the visual detecting instrument 24 faces one side of the lotus seeds on the holding and positioning mechanism, and the visual detecting instrument 24 can move to the position where the detecting portion of the front end is aligned with the lotus seeds on the holding and positioning mechanism under the action of the detecting driving cylinder 23.

Finally, the visual detector 24 is moved to the position aligned with the lotus seeds by the detection driving air cylinder 23, whether the core penetrating effect is finished is detected by the visual detector 24 through detecting whether the heads of the lotus seeds are black or not, if the core penetrating is finished, the next lotus seed is directly introduced, the lotus seed extrudes the previous lotus seed, the finished lotus seed rolls out from the second guide rail 9, and if the core penetrating is not finished, the core penetrating mechanism conducts core penetrating operation on the lotus seeds again.

As shown in fig. 1, the control device includes a PLC control component and a control panel 25, wherein the driving component of the feeding mechanism, the clamping and positioning mechanism, the core-piercing mechanism, and the detecting mechanism is electrically connected to the control panel 25, and the control panel 25 is fixedly disposed on and exposed out of the housing of the rack 1.

Each mechanism of the whole set of equipment can automatically complete respective work function, does not need additional operation of people, and is very convenient.

It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended manner, i.e. in a manner equivalent to "including at least … …", and not in a closed manner, i.e. in a manner not to be interpreted as "including … … only".

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The fresh lotus seed core penetrating machine is characterized by comprising a machine frame (1), a feeding mechanism, a conveying mechanism, a clamping and positioning mechanism, a core penetrating mechanism, a detection mechanism and a control device, wherein the feeding mechanism, the conveying mechanism, the clamping and positioning mechanism, the detection mechanism and the control device are arranged on the machine frame (1), the control device is electrically connected with a driving part in the feeding mechanism, the clamping and positioning mechanism and the core penetrating mechanism and can control the driving part and the driving part to work in a coordinated mode, the feeding mechanism can place a plurality of lotus seeds and can send the lotus seeds out one by one, the conveying mechanism can convey the lotus seeds onto the clamping and positioning mechanism, the clamping and positioning mechanism can align and tighten the lotus seeds, the core penetrating mechanism can separate the lotus seeds from the lotus seeds, and the detection mechanism can.

2. The fresh lotus seed core penetrating machine as claimed in claim 1, wherein the feeding mechanism comprises a feeding hopper (2), a feeding turntable (3), a guiding limit cover (4), a feeding rotating shaft (5) and a feeding driving motor (6), the feeding driving motor (6) is electrically connected with the control device, the feeding driving motor, the feeding hopper (2) and the guiding limit cover (4) are fixedly arranged on the frame (1), the feeding rotating shaft (5) is horizontally and rotatably arranged on the frame (1) and is connected with a main shaft of the feeding driving motor (6), the guiding limit cover (4) is fixedly sleeved on the feeding rotating shaft (5), a plurality of transfer grooves (7) allowing only one lotus seed to enter are formed in the periphery of the feeding turntable (3) in an equal-uniform circumferential array manner, and the transfer grooves (7) can be aligned with an outlet of the feeding hopper (2) in the rotating process of the feeding turntable (3), the guiding limiting cover (4) is provided with a guiding groove and forms a cover shape through the guiding groove, one part of the outer periphery of the feeding turntable (3) is contained by the guiding limiting cover (4), the outer periphery surface of the feeding turntable (3) is attached to the bottom surface of the guiding groove of the guiding limiting cover (4), and at least one transfer groove (7) of the feeding turntable (3) is positioned in the guiding groove in the rotating process.

3. The machine for the coring of fresh lotus seeds as claimed in claim 2, wherein the transfer groove (7) is in the shape of a strip with gradually decreasing width and depth from front to back, the maximum part of the width and depth of the front of the transfer groove (7) is enough for one lotus seed to enter, and any other position is not enough for one lotus seed to enter.

4. The fresh lotus seed core penetrating machine according to claim 1 or 2, characterized in that the conveying mechanism comprises a first guide rail (8), a second guide rail (9) and a limiting clamp plate (10), two ends of the first guide rail (8) are respectively butted with the feeding mechanism and the clamping and positioning mechanism, one end of the second guide rail (9) is butted with the clamping and positioning mechanism, the limiting clamp plate (10) comprises two pieces, one end of the limiting clamp plate (10) is butted with the end of the guide limiting cover (4) and can limit and guide lotus seeds falling from the feeding turntable (3) onto the first guide rail (8), and the distance between the two limiting clamp plates (10) is consistent with the maximum width of the transfer groove (7).

5. The machine for pulling fresh lotus seeds through the core as claimed in claim 1 or 2, wherein the clamping and positioning mechanism comprises four clamping and centering wheels (11) positioned at four corners of a virtual rectangle, a gap is formed between the four clamping and centering wheels (11), the gap is in butt joint with the conveying mechanism, the width of the gap is sufficient for clamping one lotus seed, the clamping and positioning mechanism further comprises a centering driving part for driving the four clamping and centering wheels (11) to synchronously rotate in the same direction and a locking driving part for driving the two centering wheels positioned above to lift.

6. A fresh lotus seed core penetrating machine as claimed in claim 5, wherein the locking driving part comprises a lifting block (12), a buffer block (13) and a lifting driving cylinder (14), two of the four clamping and centering wheels (11) are rotatably arranged on the lifting block (12) while the other two are rotatably arranged on the buffer block (13), the buffer block (13) is slidably arranged on the bracket, a first elastic member (15) is arranged between the buffer block (13) and the bracket, the lifting block (12) is slidably arranged on the bracket, a second elastic member (16) is arranged between the lifting block (12) and the bracket, and the lifting driving cylinder (14) is fixedly arranged on the bracket, and a piston rod of the lifting driving cylinder is connected with the lifting block (12) and can drive the lifting block (12) to lift.

7. The fresh lotus seed core penetrating machine as claimed in claim 6, wherein the centering driving part comprises a first centering driving motor (17), a first speed changer, a second centering driving motor (18), a second speed changer and four universal couplings (19) which are fixedly arranged on the frame (1), the first centering driving motor (17) is connected with the first speed changer, output shafts of the first centering driving motor and the first speed changer are connected to the two clamping centering wheels (11) on the lifting block (12) through the two universal couplings (19), the second centering driving motor and the second speed changer are connected, and output shafts of the second centering driving motor and the second speed changer are connected to the two clamping centering wheels (11) on the buffer block (13) through the other two universal couplings (19).

8. The fresh lotus seed core penetrating machine according to claim 1 or 2, characterized in that the core penetrating mechanism comprises a contraposition driving cylinder (20), a carry driving cylinder (21), a core penetrating needle (22) and an air pump, the contraposition driving cylinder (20) is fixedly arranged on the rack (1), the carry driving cylinder (21) is connected to a piston rod of the contraposition driving cylinder (20) and can perform lifting motion under the driving of the contraposition driving cylinder (20), the core penetrating needle (22) is connected to a piston rod of the carry driving cylinder (21) and can perform telescopic motion under the driving of the carry driving cylinder (21), the core penetrating needle (22) is hollow inside, the air pump is fixedly arranged on the rack (1) and is communicated with the core penetrating needle (22), and the core penetrating needle (22) moves in a direction to be close to or far away from a lotus seed clamped on the clamping and positioning mechanism.

9. The fresh lotus seed core penetrating machine according to claim 1 or 2, wherein the detection mechanism comprises a detection driving cylinder (23) and a visual detector (24), the detection driving cylinder (23) is fixedly arranged on the rack (1), the visual detector (24) is connected to a piston rod of the detection driving cylinder (23), a detection part at the front end of the visual detector (24) faces one side of the lotus seeds on the clamping and positioning mechanism, and the visual detector (24) can move to enable the detection part at the front end to be aligned with the lotus seeds on the clamping and positioning mechanism under the action of the detection driving cylinder (23).

10. The core penetrating machine for fresh lotus seeds as claimed in claim 1 or 2, wherein the control device comprises a PLC control component and a control panel (25), the driving components in the feeding mechanism, the clamping and positioning mechanism, the core penetrating mechanism and the detection mechanism are electrically connected with the control panel (25), and the control panel (25) is fixedly arranged on the shell of the frame (1) and is exposed.