Negative pressure cotton suction system

Abstract

The utility model relates to a negative-pressure cotton suction system which comprises a negative-pressure mechanism and a negative-pressure mechanism, the negative-pressure mechanism comprises a negative-pressure cylinder, a negative-pressure device is connected to the top of the negative-pressure cylinder and provides negative pressure for the negative-pressure cylinder, and a negative-pressure connecting pipe used for outputting the negative pressure outwards is arranged on the side wall of the negative-pressure cylinder; the flower picking mechanism is arranged on a flower suction pipe, the flower suction pipe is connected to the negative pressure connecting pipe through an adapter pipe, the flower picking mechanism comprises a plurality of flower picking claws which are arranged in an annular array relative to the axis of the flower suction pipe, cutting protrusions used for cutting off flower branches are arranged at the front ends of the flower picking claws, and synchronous swing arms are fixedly connected to the tail ends of the flower picking claws; the synchronous swing arm is driven by a pushing mechanism; the bottom of the negative pressure cylinder is connected with a main discharge valve mechanism for opening or closing the negative pressure cylinder; when the flower picking device is used, flower branches are cut off through the flower picking mechanism, and flowers are sucked into the negative pressure cylinder through the negative pressure equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of negative pressure flower suction systems, belong to agricultural machinery field. BACKGROUND

[0002] Manual picking works for too long, long, labor intensity is big, efficiency is low, plus the height of flower branch is not fixed person to and back bending and standing, manual picking has been very difficult, labor intensity is great, this picking mode needs a lot of labor and labor time, picking cost is high, and in today's social and economic environment, labor shortage, manual picking is obviously not in line with the development requirement of marigold planting;Flower picking gripper on market is all artificial auxiliary tool, prevent the device of hand injury, cannot realize automatic picking mode, marigold flowering period is short, must be picked up in a large amount in short time, it is easy to wither after flowering, when large-area planting needs short-term huge manpower, plus flowering time batch, will appear several flowering periods in a plant, artificial dosage is large, and the planting area of whole country is in remote plain area local labor area serious shortage, due to short flowering period, leading to current artificial will in high intensity, even night picking, this manual picking mode has been on the verge of market elimination, whole national market cannot effectively solve. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the technical problems in the prior art and provide a negative pressure flower suction system.

[0004] The utility model adopts the following technical scheme to solve the technical problem:

[0005] A negative pressure flower suction system, comprising:

[0006] A negative pressure mechanism, the negative pressure mechanism comprises a negative pressure cylinder, a negative pressure device is connected to the top of the negative pressure cylinder to provide negative pressure for the negative pressure cylinder, and a negative pressure connecting pipe for outputting negative pressure outside is arranged on the side wall of the negative pressure cylinder;

[0007] A flower picking mechanism, the flower picking mechanism is arranged on the flower suction pipe, the flower suction pipe is connected to the negative pressure connecting pipe through an adapter pipe, the flower picking mechanism comprises a plurality of flower picking claws arranged in a ring array relative to the axis of the flower suction pipe, the flower picking claw has a spoon-shaped structure, a cutting protrusion for cutting off the flower branch is arranged at the front end of the flower picking claw, a synchronous swing arm is fixedly connected to the tail end of the flower picking claw, the tail end of the synchronous swing arm is rotationally connected to the end face of the front end of the flower suction pipe, and the tail end of the synchronous swing arm is movably connected to the outer side wall at the position of the front end of the flower suction pipe through a pushing mechanism, the pushing mechanism pushes the synchronous swing arm to reciprocate the flower picking claw.

[0008] Among them, a main discharge valve mechanism for opening or closing the negative pressure cylinder is connected to the bottom of the negative pressure cylinder.

[0009] As a further improvement of the utility model, the pushing mechanism comprises a synchronous ring, a plurality of pushing swing arms are arranged in an annular array on the synchronous ring, one end of the pushing swing arm is rotationally connected with the synchronous ring, and the other end of the pushing swing arm is rotationally connected with the end of the synchronous swing arm; the synchronous ring is movably connected with the outer wall of the flower sucking pipe through a linear driver;

[0010] The synchronous ring structure can ensure the synchronization of the operation of the various flower picking claws, can ensure the tightness when being closed, can prevent the flower from being separated from the flower picking claw that is not closed, and can also ensure the degree of opening and prevent the flower from being damaged due to being pressed by the flower picking claw that is not opened.

[0011] As a further improvement of the utility model, the linear driver comprises a first swing motor arranged in an annular array on the outer wall of the flower sucking pipe, a swing arm is fixed to the swing output shaft of the first swing motor, and a sliding rod is fixed to the end of the swing arm; a plurality of sliding frames are arranged in an annular array on the synchronous ring, a plurality of sliding grooves are arranged in the sliding frame, the sliding rod is slidably connected in the sliding groove, and the included angle between the axis of the sliding groove and the flower sucking pipe is greater than 30° and less than 180°; a plurality of limiting grooves are arranged in an annular array on the synchronous ring, and a plurality of limiting blocks embedded in the limiting grooves are arranged on the outer wall of the flower sucking pipe;

[0012] The movement of the sliding frame is realized through the cooperation of the sliding groove and the sliding rod, the size of the swing motor is smaller than that of a linear extension motor or a cylinder, and the complexity and weight of the end structure of the flower sucking pipe can be effectively reduced; meanwhile, the limiting groove and the limiting block can prevent the synchronous ring from rotating relative to the flower sucking pipe, and the transmission of the upward pushing torque of the synchronous ring is ensured.

[0013] As a further improvement of the utility model, sawtooth-shaped auxiliary protrusions are symmetrically arranged at positions corresponding to the two sides of the cutting protrusion on the spoon-shaped edge of the flower picking claw;

[0014] The auxiliary protrusion can assist the cutting protrusion in cutting the flower branch when the flower is offset from the axis of the flower sucking pipe, and the cutting efficiency is ensured.

[0015] As a further improvement of the utility model, the adapter pipe comprises a longitudinal sliding pipe slidably connected with the flower sucking pipe, a sealing ring is arranged on the inner wall of the end of the longitudinal sliding pipe, a plurality of positioning grooves are arranged in an annular array in the sealing ring, a plurality of positioning blocks slidably connected with the positioning grooves are arranged in an annular array on the surface of the flower sucking pipe, and the positioning block is in a strip structure and arranged in parallel with the axis of the flower sucking pipe;

[0016] The sliding connection can dynamically adjust the flower sucking pipe according to the height of the flower; the positioning groove and the positioning block structure can prevent the flower sucking pipe from rotating relative to the longitudinal sliding pipe, ensure the stability of the flower sucking pipe, and reduce the possibility of the flower branch being twisted and broken.

[0017] As further improvement of the utility model, a plurality of storage flower tubes coaxial with the negative pressure tube are arranged below the negative pressure tube, the storage flower tubes are fixedly arranged relative to the negative pressure tube through the frame, the bottom of the storage flower tube is provided with a sub-discharge valve mechanism for opening or closing the storage flower tube, the top of the array is connected with the bottom of the negative pressure tube through a main discharge valve mechanism;

[0018] The storage flower tube can store the flowers in a hierarchical manner, prevent the flowers at the bottom from being squeezed due to open storage, and reduce the oxidation of the flowers.

[0019] As further improvement of the utility model, the main discharge valve mechanism and the sub-discharge valve mechanism each include a sliding frame fixed to the frame, the sliding frame includes two groups of sliding rails arranged in a circle center symmetrically relative to the negative pressure tube and the storage flower tube, the main discharge valve mechanism and the sub-discharge valve mechanism each further include a gate plate slidingly connected between the sliding rails, the upper surface of the gate plate is in sliding sealing contact with the bottom of the negative pressure tube and the storage flower tube, the end of the gate plate is provided with a push plate, and the push plate is movably connected with the end of the sliding rail through a reciprocating push mechanism.

[0020] The reciprocating gate plate structure is simple, occupies less longitudinal space compared to an unfolded structure, can make the arrangement between the negative pressure tube and the storage flower tube more compact, the falling distance of the flowers is shorter, and the damage of the flowers is lower.

[0021] As further improvement of the utility model, the reciprocating push mechanism includes a reciprocating push rod, at least two groups of sliding seats are coaxially fixed on the sliding rail, and the reciprocating push rod is rotatably connected with the sliding seat; the reciprocating push mechanism further includes a second swing motor fixed to the end of the sliding rail, a push arm is fixed on the swing output shaft of the second swing motor, the end of the push arm is movably connected with the end of the reciprocating push rod through an intermediate connecting rod, and the two ends of the intermediate connecting rod are movably connected with the push arm and the reciprocating push rod through universal ball head structures.

[0022] As further improvement of the utility model, a tapered cylinder is connected with an exhaust pipe at the top end of the negative pressure tube, a connecting seat is arranged on the outer wall of the exhaust pipe, the negative pressure device includes an exhaust fan, the exhaust fan is fixed to the connecting seat, and the suction end of the exhaust fan is connected with the exhaust pipe.

[0023] The utility model has the advantages of:

[0024] The system includes a gripper that can pick flowers with the help of a visual algorithm, can replace manual picking, and can collect picked flowers together in a fixed mode, facilitating flower management. The whole process is free of manual intervention. Since the flowering period is short, night work can be realized, the machine can pick flowers in a large area in a short time, greatly improving picking efficiency and economic benefits, and large-area planting can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0025] The utility model will be further explained in connection with the drawings and embodiments.

[0026] Figure 1 is the structure schematic diagram of negative pressure cylinder and storage flower cylinder;

[0027] Figure 2 is the structure schematic diagram of suction flower pipe;

[0028] Figure 3 is the combination state schematic diagram of sealing ring and longitudinal sliding pipe;

[0029] Figure 4 is the combination state schematic diagram of arc pipe and radial sliding pipe;

[0030] Figure 5 is the schematic diagram of exhaust fan;

[0031] Figure 6 is the structure general view of the utility model.

[0032] In the drawing: 1, suction flower pipe;2, flower picking claw;3, cut-off protrusion;4, auxiliary protrusion;5, synchronous swing arm;6, swing seat;7, synchronous ring;8, push swing arm;9, limit block;10, limit slot;11, first swing motor;12, swing arm;13, sliding rod;14, sliding slot;15, longitudinal sliding pipe;16, positioning block;17, sealing ring;18, arc pipe;19, radial sliding pipe;20, negative pressure cylinder;21, connecting lug;22, tapered cylinder;23, connecting seat;24, exhaust pipe;25, exhaust fan;26, suction end;27, storage flower cylinder;28, sliding guide rail;29, gate plate;30, push plate;31, sliding seat;32, reciprocating push rod;33, second swing motor;34, push arm;35, intermediate connecting rod;36, universal ball head structure. DETAILED DESCRIPTION

[0033] The utility model will be further explained in connection with the drawings and embodiments. These drawings are all simplified schematic diagram, just with schematic way illustrate the basic structure of the utility model, therefore it just shows the constitution related with the utility model.

[0034] As Figure 6 A negative pressure flower sucking system mainly by negative pressure mechanism, flower picking mechanism and storage mechanism;

[0035] As Figure 1, the negative pressure mechanism is connected to the upper side of the storage mechanism, and provides negative pressure for the flower picking mechanism. The negative pressure mechanism comprises a negative pressure cylinder 20, and the outer wall of the negative pressure cylinder 20 is provided with a connecting lug 21. The negative pressure cylinder 20 is fixed to the rack through the connecting lug 21. The top end of the negative pressure cylinder 20 is connected with an exhaust pipe 24 through a tapered cylinder 22. The outer wall of the exhaust pipe 24 is fixed with a connecting seat 23 at the position corresponding to the top end of the tapered cylinder 22. The negative pressure device comprises an exhaust fan 25. The bottom of the exhaust fan 25 is fixed to the connecting seat 23. The suction end 26 of the exhaust fan 25 is connected with the exhaust pipe 24. The negative pressure in the negative pressure cylinder 20 is generated through the exhaust fan 25. Figure 5 , the bottom of the exhaust fan 25 is fixed to the connecting seat 23. The suction end 26 of the exhaust fan 25 is connected with the exhaust pipe 24. The negative pressure in the negative pressure cylinder 20 is generated through the exhaust fan 25.

[0036] As shown in Figure 1 , the storage mechanism comprises two groups of flower storage cylinders 27 coaxially arranged below the negative pressure cylinder 20. The flower storage cylinders 27 are also fixed to the rack. The top and bottom of the flower storage cylinders 27 are both open structures.

[0037] As shown in Figure 1 , the bottom of the negative pressure cylinder 20 is provided with a main discharge valve mechanism for opening and closing the opening at the bottom of the negative pressure cylinder 20. The bottom of the flower storage cylinder 27 is provided with a secondary discharge valve mechanism for opening and closing the opening at the bottom of the flower storage cylinder 27. The structures of the main discharge valve mechanism and the secondary discharge valve mechanism are the same. Both of them comprise a sliding frame fixed to the rack. The sliding frame comprises two groups of sliding rails 28 arranged in a circular center symmetry with respect to the negative pressure cylinder 20 and the flower storage cylinder 27. The main discharge valve mechanism and the secondary discharge valve mechanism also both comprise a gate plate 29 slidingly connected between the sliding rails 28. The upper surface of the gate plate 29 is in sliding sealing contact with the bottom of the negative pressure cylinder 20 and the flower storage cylinder 27. The end of the gate plate 29 is provided with a push plate 30. The push plate 30 is movably connected with the end of the sliding rail 28 through a reciprocating push mechanism. The reciprocating push mechanism comprises a reciprocating push rod 32. At least two groups of sliding seats 31 are coaxially fixed on the sliding rail 28. The reciprocating push rod 32 is rotatably connected with the sliding seat 31. The reciprocating push mechanism further comprises a second swing motor 33 fixed to the end of the sliding rail 28. A push arm 34 is fixed on the swing output shaft of the second swing motor 33. The end of the push arm 34 is movably connected with the end of the reciprocating push rod 32 through an intermediate connecting rod 35. The two ends of the intermediate connecting rod 35 are movably connected with the push arm 34 and the reciprocating push rod 32 through universal ball head structures 36 respectively.

[0038] The rotation of the push arm 34 is driven by the second swing motor 33. The reciprocating movement of the gate plate 29 is realized by pulling the reciprocating push rod 32 through the intermediate connecting rod. The opening and closing of the negative pressure cylinder 20 and the flower storage cylinder 27 are realized.

[0039] As shown in Figure 6, the flower sucking mechanism comprises a flower sucking part and a flower picking part, wherein the flower sucking part comprises a flower sucking pipe 1, a conversion frame is connected to the flower sucking pipe 1, the conversion frame can be fixed to an operation wall for adjusting the position of the end of the flower sucking pipe 1 relative to the flower; a negative pressure connecting pipe is fixed to the top side wall of the negative pressure cylinder 20, the flower sucking part further comprises a radial sliding pipe 19 which is slidably sleeved on the negative pressure connecting pipe, the radial sliding pipe 19 can move along the radial axis of the negative pressure cylinder 20, such as Figure 4 , an arc-shaped pipe 18 of spring pipe structure is connected to the radial sliding pipe 19, the end of the arc-shaped pipe 18 is fixedly connected with a longitudinal sliding pipe 15, the longitudinal sliding pipe 15 is slidably sleeved on the outer wall of the flower sucking pipe 1 through a sealing ring 17, such as Figure 3 , a plurality of positioning grooves are arranged in the inner annular array of the sealing ring 17, a plurality of positioning blocks 16 which are slidably connected with the positioning grooves are arranged in the surface of the flower sucking pipe 1 in an annular array, the positioning blocks 16 are strip-shaped structures and are arranged in parallel with the axis of the flower sucking pipe 1, the circumferential locking is realized through the relative sliding of the positioning blocks 16 and the positioning grooves, the circumferential rotation of the pipe part relative to the flower sucking pipe 1 is prevented to affect the normal work of the flower picking part, the arrangement of the radial sliding pipe 19, the longitudinal sliding pipe 15 and the arc-shaped pipe 18 can make the flower sucking pipe 1 move relative to the negative pressure cylinder 20 for adjustment.

[0040] , such as Figure 2The end of the suction tube 1 is provided with a flower picking part, the flower picking part includes a plurality of spoon-shaped flower picking claws 2, a plurality of swing seats 6 are integrally bent at the end of the suction tube 1 and protrude outward, a synchronous swing arm 5 is riveted on the flower picking claw 2, one end of the synchronous swing arm 5 is rotationally connected to the swing seat 6; a plurality of limiting blocks 9 are arranged in an annular array on the outer side of the suction tube 1, an annular synchronous ring 7 is arranged on the outer ring of the suction tube 1 through the limiting blocks 9, the inner ring of the synchronous ring 7 is provided with a limiting groove 10 in sliding connection with the limiting blocks 9; a pushing swing arm 8 is in sliding connection between the synchronous ring 7 and the synchronous swing arm 5, the rotation planes of the pushing swing arm 8, the synchronous ring 7 and the synchronous swing arm 5 are located on the radial axis of the suction tube 1; the synchronous ring 7 is driven by a plurality of first swing motors 11 fixed to the outer side wall of the suction tube 1, a swing arm 12 is fixed to the motor shaft of the first swing motor 11, a slide rod 13 is vertically fixed to the end of the swing arm 12, a plurality of slide frames are arranged in an annular array on the synchronous ring 7, a slide groove 14 is arranged in the slide frame, the slide groove 14 is arranged along the radial axis of the suction tube 1, the slide rod 13 is in sliding connection in the slide groove 14, the swing of the swing arm 12 driven by the first swing motor 11 makes the slide rod 13 move, the component force of the slide rod 13 on the radial axis of the suction tube 1 pushes the synchronous ring 7 to move up and down, the synchronous ring 7 drives the synchronous swing arm 5 to swing through the pushing swing arm 8 in the moving process, thereby realizing the mutual opening and closing of the flower picking claws 2; wherein a cutting protrusion 3 is arranged at the front end of the flower picking claw 2, auxiliary protrusions 4 are arranged at positions corresponding to both sides of the cutting protrusion 3 of the flower picking claw 2, the cutting protrusion 3 and the auxiliary protrusions 4 are both sawtooth structures.

[0041] In use, the following steps are included:

[0042] Firstly, the main discharge valve mechanism and the auxiliary discharge valve mechanism are closed, a negative pressure is generated in the negative pressure cylinder 20 by the exhaust fan 25, and the flower picking claws 2 are unfolded by the first swing motor 11.

[0043] Secondly, the suction tube 1 of the flower picking mechanism is moved above the flower by the mechanical arm, the flower picking tube is moved so that the slide is located inside the front end of the flower picking tube, the flower picking claws 2 are folded by the first swing motor 11, and the cutting protrusion 3 cuts the flower branch.

[0044] Thirdly, the flower is sucked into the negative pressure cylinder 20 through the pipeline of the suction tube 1, the longitudinal sliding tube 15, the arc-shaped tube 18 and the radial sliding tube 19 by the negative pressure of the exhaust fan 25; after the suction is completed, the flower picking claws 2 are unfolded again by the pushing mechanism, because there is still a certain process gap between the closed flower picking claws 2, the negative pressure driving force for the flower is not affected.

[0045] Fourth step, wherein the flower storage tube 27 has 3, when the negative pressure tube 20 is full, first, the third flower storage tube 27 is stored, in addition to the third flower storage tube 27 bottom sub discharge valve mechanism, open other main discharge valve mechanism and sub discharge valve mechanism, so that the flower in the negative pressure tube 20 falls into the third flower storage tube 27 inside; Then the second flower storage tube 27 is stored, in addition to the third and second flower storage tube 27 bottom sub discharge valve mechanism, open other main discharge valve mechanism and sub discharge valve mechanism, so that the flower in the negative pressure tube 20 falls into the second flower storage tube 27 inside;

[0046] Fifth step, the flower is packaged, the packaging bag is placed in the third flower storage tube 27 bottom, and each sub discharge valve mechanism is opened gradually, so that the flower in the flower storage tube 27 falls into the packaging bag.

[0047] The above is based on the ideal embodiment of the present application, through the above description, the relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A negative pressure flower absorption system, characterized in that, include: The negative pressure mechanism includes a negative pressure cylinder (20), a negative pressure device is connected to the top of the negative pressure cylinder (20) to provide negative pressure to the negative pressure cylinder (20), and a negative pressure connecting pipe for outputting negative pressure to the outside is provided on the side wall of the negative pressure cylinder (20); The flower picking mechanism is arranged on the flower suction tube (1). The flower suction tube (1) is connected to the negative pressure connection tube through the adapter tube. The flower picking mechanism includes several flower picking claws (2) arranged in a ring array relative to the axis of the flower suction tube (1). The flower picking claws (2) are spoon-shaped structures. The front end of the flower picking claws (2) is provided with a cutting protrusion (3) for cutting flower branches. The end of the flower picking claws (2) is fixedly connected to a synchronous swing arm (5). The end of the synchronous swing arm (5) is rotatably connected to the end face of the front end of the flower suction tube (1). The end of the synchronous swing arm (5) is movably connected to the outer wall of the front end of the flower suction tube (1) through a pushing mechanism. The pushing mechanism pushes the synchronous swing arm (5) to make the flower picking claws (2) swing back and forth. Among them, a main discharge valve mechanism for opening or closing the negative pressure cylinder (20) is connected to the bottom of the negative pressure cylinder (20).

2. The negative pressure flower suction system as described in claim 1, characterized in that: The pushing mechanism includes a synchronization ring (7), on which a plurality of pushing arms (8) are arranged in a ring array. One end of the pushing arm (8) is rotatably connected to the synchronization ring (7), and the other end of the pushing arm (8) is rotatably connected to the end of the synchronization arm (5). The synchronization ring (7) is movably connected to the outer wall of the flower suction tube (1) through a linear driver.

3. The negative pressure flower suction system as described in claim 2, characterized in that: The linear actuator includes a first swing motor (11) arranged in a ring array on the outer wall of the flower suction tube (1). A swing arm (12) is fixed on the swing output shaft of the first swing motor (11), and a slide rod (13) is fixed at the end of the swing arm (12). Several sliding frames are arranged in a ring array on the synchronous ring (7). Several sliding grooves (14) are arranged in the sliding frames. The slide rod (13) is slidably connected in the sliding groove (14). The angle between the axis of the sliding groove (14) and the flower suction tube (1) is greater than 30° and less than 180°. Several limiting grooves (10) are also arranged in a ring array on the synchronous ring (7). Several limiting blocks (9) embedded in the limiting grooves (10) are arranged on the outer wall of the flower suction tube (1).

4. The negative pressure flower suction system as described in claim 1, characterized in that: in The spoon-shaped edge of the flower-picking claw (2) is symmetrically provided with serrated auxiliary protrusions (4) on both sides of the cutting protrusion (3).

5. The negative pressure flower suction system as described in claim 1, characterized in that: The adapter tube includes a longitudinal sliding tube (15) that is slidably connected to the flower suction tube (1). A sealing ring (17) is provided on the inner wall of the end of the longitudinal sliding tube (15). Several positioning grooves are arranged in an annular array inside the sealing ring (17). Several positioning blocks (16) that are slidably connected to the positioning grooves are arranged in an annular array on the surface of the flower suction tube (1). The positioning blocks (16) are strip-shaped structures and are arranged parallel to the axis of the flower suction tube (1).

6. The negative pressure flower suction system as described in claim 1, characterized in that, Below the negative pressure cylinder (20), there are also several flower storage cylinders (27) arranged in an array, which are coaxial with the negative pressure cylinder (20). The flower storage cylinders (27) are fixed relatively statically to the negative pressure cylinder (20) through the frame. The bottom of the flower storage cylinders (27) is provided with a secondary discharge valve mechanism for opening or closing the flower storage cylinders (27). The flower storage cylinders (27) at the top of the array are connected to the bottom of the negative pressure cylinder (20) through a main discharge valve mechanism.

7. The negative pressure flower suction system as described in claim 1, characterized in that: Both the main discharge valve mechanism and the auxiliary discharge valve mechanism include a sliding frame fixed on the frame. The sliding frame includes two sets of sliding guide rails (28) symmetrically arranged relative to the center of the negative pressure cylinder (20) and the flower storage cylinder (27). Both the main discharge valve mechanism and the auxiliary discharge valve mechanism also include a gate plate (29) slidably connected between the sliding guide rails (28). The upper surface of the gate plate (29) is in sliding sealing contact with the bottom of the negative pressure cylinder (20) and the flower storage cylinder (27). A push plate (30) is provided at the end of the gate plate (29). The push plate (30) is movably connected to the end of the sliding guide rail (28) through a reciprocating push mechanism.

8. The negative pressure flower suction system as described in claim 7, characterized in that: The reciprocating push mechanism includes a reciprocating push rod (32), and at least two sets of sliding seats (31) are coaxially fixed on the sliding guide rail (28). The reciprocating push rod (32) and the sliding seats (31) are rotatably connected. The reciprocating push mechanism also includes a second swing motor (33) fixed at the end of the sliding guide rail (28). A push arm (34) is fixed on the swing output shaft of the second swing motor (33). The end of the push arm (34) and the end of the reciprocating push rod (32) are movably connected through an intermediate connecting rod (35). The two ends of the intermediate connecting rod are movably connected to the push arm (34) and the reciprocating push rod (32) respectively through a universal ball joint structure (36).

9. The negative pressure flower suction system as described in claim 1, characterized in that: An exhaust pipe (24) is connected to the top of the negative pressure cylinder (20) via a tapered cylinder (22). A connecting seat (23) is provided on the outer wall of the exhaust pipe (24). The negative pressure device includes an exhaust fan (25), which is fixed to the connecting seat (23). The intake end (26) of the exhaust fan (25) is connected to the exhaust pipe (24).

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