A seedling pruning device

Abstract

The present application belongs to the technical field of seedling raising, and provides a seedling raising and pruning device, which comprises a mounting seat, a first cutter seat and a second cutter seat oppositely arranged on the mounting seat, a first through hole formed in the first cutter seat, a first cutter head arranged on one side of the first cutter seat away from the second cutter seat and used for removing end leaves of seedling branches, a second cutter head and a first elastic member arranged on one side of the first cutter seat close to the second cutter seat, a cutter groove matched with the second cutter head arranged on the second cutter seat, a second through hole formed in the second cutter seat, a centering assembly fixedly connected to one side of the second cutter seat away from the first cutter seat and used for positioning and clamping seedling branches, a clamping assembly arranged on one side of the centering assembly away from the second cutter seat and used for clamping seedling branches, and a shearing assembly used for shearing seedling branches. The present application solves the technical problem that the treatment of seedling branches before cutting in the prior art relies on manual operation, which is time-consuming and laborious and has low production efficiency, saves time and labor cost, and improves production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of seedling raising, in particular to a seedling raising and pruning device. BACKGROUND

[0002] Seedling raising refers to cultivating seedlings in a nursery, a seedbed or a greenhouse for transplanting to the land for planting. In particular, in the process of cutting propagation, cuttings are usually used for cultivation and propagation. Therefore, the cuttings need to meet high requirements, such as excellent variety, vigorous growth, and no disease and insect pests. Generally, the seedling branches of moderate maturity are suitable, and the seedling branches that are too tender are prone to rot, and the seedling branches that are too old are slow to root.

[0003] After selecting the appropriate seedling branches, a series of operations such as leaf cutting, leaf removal, and pruning need to be performed on the seedling branches. A part of the leaves needs to be retained, otherwise it is difficult to root after cutting. A part of the large leaves also needs to be cut to avoid excessive transpiration of water. The seedling branches also need to be pruned according to the actual cutting length. After a series of treatments, the seedling branches can be cut. In the prior art, the treatment of the seedling branches before cutting is usually performed by manual operation, which has the problems of time-consuming and labor-intensive and low production efficiency. SUMMARY

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a seedling raising and pruning device to solve the technical problem of the prior art that the treatment of the seedling branches before cutting relies on manual operation, which is time-consuming and labor-intensive and has low production efficiency.

[0005] To achieve the above-mentioned purposes and other related purposes, the present application provides a seedling raising and pruning device, which comprises:

[0006] A mounting seat is provided with a first knife seat and a second knife seat opposite to each other, and the first knife seat and the second knife seat can move relative to each other on the mounting seat;

[0007] A first through hole for passing through the seedling branches is formed in the first knife seat, and a first knife head for removing the end leaves of the seedling branches is arranged on the side of the first knife seat away from the second knife seat. The first knife head comprises two oppositely arranged semicircular plates, and a semicircular hole is formed at the center of each of the two semicircular plates. The first through hole is formed by folding the two semicircular holes, and the first through hole is trumpet-shaped and extends away from the second knife seat.

[0008] A second knife head for cutting leaves and a first elastic member for pressing leaves are arranged on the side of the first knife seat close to the second knife seat;

[0009] A knife groove matched with the second knife head is arranged on the second knife seat, and a second through hole for passing through the seedling branches is formed in the second knife seat.

[0010] The second knife seat is fixedly connected with a centering assembly for positioning and clamping seedling branches on the side away from the first knife seat, and the centering assembly can move along with the second knife seat. The side away from the second knife seat of the centering assembly is provided with a clamping assembly for clamping seedling branches and a shearing assembly for shearing seedling branches.

[0011] Optionally, the first knife seat is further provided with a first driving mechanism for driving the first knife head to fold. The first driving mechanism comprises a driving part and a connecting part. The connecting part comprises two opposite straight plates. The front end of each straight plate is provided with an inclined part. The inclined parts on the two straight plates match each other. The inclined parts are provided with semicircular notches. The semicircular notches are folded to form a second circular hole. The diameter of the second circular hole is greater than or equal to the diameter of the protruding part of the first circular hole.

[0012] Optionally, the second knife head is in a ring structure. A plurality of first elastic members are circumferentially arranged on the inner edge of the second knife head. Second elastic members are circumferentially arranged on the outer edge of the second knife head for assisting in pressing leaves and limiting during leaf shearing. The length of the first elastic member is greater than or equal to the length of the second knife head. The knife groove is a ring groove matched with the second knife head.

[0013] Optionally, the diameter of the second through hole gradually decreases in the direction away from the first knife seat, so as to spread the leaves when the seedling branches pass through the second through hole. A plurality of groups of detection elements are arranged on the second knife seat along the circumference of the second through hole, for detecting the positions of spores and leaves on the seedling branches.

[0014] Optionally, the centering assembly comprises at least two coaxially rotating centering parts and a driving arm for driving the rotation of the two centering parts. A third through hole for passing through the seedling branches is formed in each of the two centering parts. The third through hole gradually decreases in the direction tangent to the rotation of the centering part. The decreasing directions of the two third through holes are opposite. A first long slot is also formed in each of the two centering parts. The two first long slots are arranged in an intersecting manner. The intersection of the two first long slots is located on the line between the center of the first through hole and the center of the rotation shaft of the centering part. A first mounting plate for mounting the centering assembly is also arranged on the mounting seat. A second long slot is formed in the first mounting plate. The second long slot is arranged on the line between the center of the first through hole and the center of the rotation shaft of the centering part. One end of the driving arm is connected to the intersection of the second long slot and the two first long slots through a first driving pin. A bending part is arranged on the driving arm. A second driving pin is arranged between the bending part of the driving arm and the first mounting plate. The driving arm can rotate around the second driving pin as the rotation fulcrum.

[0015] Optionally, the centering assembly further comprises a connecting piece and a driving piece, one end of the driving arm is connected with the two centering parts, the other end is connected with the connecting piece, the driving piece and the driving arm are connected through the connecting piece, the connecting piece and the driving arm are rotationally connected, the third elastic piece for pulling the driving arm to rotate is arranged between the driving piece and the driving arm, the driving piece and the driving arm are respectively provided with a hook, the third elastic piece is connected between the two hooks, one end of the driving piece is connected with the first driving unit for providing driving force.

[0016] Optionally, one side of the driving arm is provided with a limiting piece for limiting the driving arm, the limiting piece is provided with a blocking part, the blocking part is arranged below the connecting piece, a third driving pin is arranged at the rotational connection between the connecting piece and the driving arm, the third driving pin extends above the blocking part, a third long hole is further arranged on the limiting piece, the second driving pin is arranged on the third long hole, one end of the limiting piece is connected with the second driving unit for driving the limiting piece to move.

[0017] Optionally, the seedling pruning device further comprises a second driving mechanism for driving the first knife seat and the second knife seat to move, the second driving mechanism comprises a first driving end and a second driving end, the first driving end is connected with the first knife seat, and the second driving end is connected with the second knife seat.

[0018] Optionally, the clamping assembly comprises two oppositely arranged clamping arms and a third driving unit, the third driving unit drives the two clamping arms to clamp or release the seedling branches and drives the clamping arms to move up and down or horizontally.

[0019] Optionally, the shearing assembly comprises two groups of blade groups and a fourth driving unit, each blade group comprises two oppositely arranged blades, the fourth driving unit drives the two blades to approach to shear the branches, the two groups of blade groups have a spacing in the direction along which the seedling branches pass, and a leaf blocking piece is arranged between the two groups of blade groups for pushing away the leaves during shearing.

[0020] As described above, the seedling pruning device of the present application has at least the following beneficial effects:

[0021] The seedling is sequentially threaded through the first through hole and the second through hole from the tip of the branch, the seedling branch is clamped and positioned at the center of the first through hole and the second through hole by the centering assembly, after positioning, the second knife seat is driven to move, the centering assembly moves with the second knife seat, and the seedling branch is moved to the clamping assembly by the centering assembly, and then the clamping assembly clamps the seedling branch, the first elastic piece is driven to move towards the second knife seat, so that the first elastic piece clamps the leaf on the second knife seat, the second knife head extends into the knife groove to shear the leaf, and then the first knife head is closed, the centering assembly releases the seedling branch, and the seedling branch is continuously moved by the clamping assembly, the first knife head removes the excess leaves on the seedling branch, and at the same time, the clamping assembly moves the seedling branch to the shearing assembly, the centering assembly clamps and positions the seedling branch again, and the shearing assembly shears the required branch segment, so that a series of operations such as leaf shearing, leaf removing and branch shearing of the seedling branch are quickly completed, time and labor cost are saved, and production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A structure schematic diagram of an embodiment of the present application is shown.

[0023] Figure 2 A structure schematic diagram of a first perspective of the first knife seat in an embodiment of the present application is shown.

[0024] Figure 3 A structure schematic diagram of a second perspective of the first knife seat in an embodiment of the present application is shown.

[0025] Figure 4 A structure schematic diagram of a first perspective of part of the assembly in an embodiment of the present application is shown.

[0026] Figure 5 A structure schematic diagram of a second perspective of part of the assembly in an embodiment of the present application is shown.

[0027] Figure 6 A structure schematic diagram of the centering assembly in an embodiment of the present application is shown.

[0028] Figure 7 A structure schematic diagram of the shearing assembly in an embodiment of the present application is shown.

[0029] Figure 8 A structure schematic diagram of a first perspective of the clamping assembly in an embodiment of the present application is shown.

[0030] Figure 9 A structure schematic diagram of a second perspective of the clamping assembly in an embodiment of the present application is shown.

[0031] In the figure: 1 - first tool seat; 2 - second tool seat; 3 - centering assembly; 4 - shearing assembly; 5 - clamping assembly; 6 - connecting rod; 7 mounting seat; 8 - second driving mechanism, 9 - driving part; 10 - first tool head; 11 - first limiting plate; 12 - first through hole; 13 - straight plate; 14 - second elastic member; 15 - first elastic member; 16 - second tool head; 17 - second limiting plate; 18 - third through hole; 19 - centering part; 20 - first driving pin; 21 - second long slot; 22 - first driving unit; 23 - third elastic member; 24 - clamping hook; 25 - driving member; 26 - limiting member; 27 - second driving unit; 28 - connecting member; 29 - third driving pin; 30 - first mounting plate; 31 - detection element; 32 - second driving pin; 33 - first inclined surface; 34 - tool groove; 35 - second through hole; 36 - second inclined surface; 37 - first long slot; 38 - driving arm; 39 - third long slot; 40 - fourth driving unit; 41 - slide rail; 42 - blade; 43 - baffle member; 44 - second mounting plate; 45 - screw rod; 46 - third driving unit; 47 - clamping arm. DETAILED DESCRIPTION

[0032] The advantages and effects of the present application can be easily understood by those skilled in the art from the above description. The present application can also be implemented or applied by different specific embodiments, and the details in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application.

[0033] Please refer to Figures 1 to 9 It should be noted that the drawings provided in the embodiments only schematically illustrate the basic concept of the present application, and the drawings only show the components related to the present application, not the number, shape and size of the components when actually implemented. The shape, number and proportion of each component when actually implemented can be arbitrarily changed, and the component layout pattern can also be more complex. The structure, proportion, size, etc. shown in the drawings attached to the specification are only used to understand and read the content disclosed in the specification by those skilled in the art, and do not limit the conditions that the present application can be implemented, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that the present application can produce, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the specification are only for the convenience of clear description, not to limit the scope of the present application, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also regarded as the scope of the present application.

[0034] Before the embodiments of the present application are described in detail, the application environment of the present application is described. The technology of the present application is mainly applied to a seedling cultivation system. The present application solves the technical problem of the prior art that the treatment of seedling branches before cutting is performed by manual operation, which is time-consuming and labor-intensive and has low production efficiency.

[0035] Please refer to Figures 1 to 9 The present embodiment provides a seedling pruning device, which comprises a mounting seat 7, a first cutter seat 1 and a second cutter seat 2 are oppositely arranged on the mounting seat 7, and the first cutter seat 1 and the second cutter seat 2 can move relative to each other on the mounting seat 7; a first through hole 12 for passing through a seedling branch is formed on the first cutter seat 1, a first cutter head 10 for removing the end leaves of the seedling branch is arranged on the side of the first cutter seat 1 away from the second cutter seat 2, the first cutter head 10 comprises two oppositely arranged semicircular plates, a semicircular hole is formed at the center of each of the two semicircular plates, the two semicircular holes are folded to form a first circular hole, the first circular hole is trumpet-shaped and extends away from the second cutter seat 2; a second cutter head 16 for cutting leaves and a first elastic member 15 for pressing leaves are arranged on the side of the first cutter seat 1 close to the second cutter seat 2; a cutter groove 34 matched with the second cutter head 16 is arranged on the second cutter seat 2, and a second through hole 35 for passing through the seedling branch is formed on the second cutter seat 2; a centering assembly 3 for positioning the seedling branch is arranged on the side of the second cutter seat 2 away from the first cutter seat 1, the centering assembly 3 is fixedly connected with the first cutter seat 1, the centering assembly 3 can move with the second cutter seat 2, and a clamping assembly 5 for clamping the seedling branch and a shearing assembly 4 for shearing the seedling branch are arranged on the side of the centering assembly 3 away from the second cutter seat 2.

[0036] Through the first and second through holes 12 and 35, the seedling branches are positioned at the center of the first and second through holes 12 and 35 by the centering assembly 3, and after positioning, the second knife holder 2 is driven to move, the centering assembly 3 moves with the second knife holder 2, and at the same time, the centering assembly 3 moves the seedling branches to the clamping assembly 5, and then the clamping assembly 5 clamps the seedling branches. By driving the first knife holder 1 to move close to the second knife holder 2, the first elastic member 15 presses the leaves against the second knife holder 2, the second knife head 16 extends into the knife groove 34 to shear the leaves, and then the first knife head 10 is closed, the centering assembly 3 releases the seedling branches, and the clamping assembly 5 drives the seedling branches to continue to move, and the first knife head 10 removes the excess leaves on the seedling branches. The large mouth part of the first knife head 10 can prevent damage to the branch surface during leaf removal, effectively protecting the seedlings; at the same time, the clamping assembly 5 moves the seedling branches to the shearing assembly 4, the centering assembly 3 clamps the seedling branches again, and the shearing assembly 4 shears the required branch segments, quickly completing a series of operations such as leaf shearing, leaf removal and pruning of the seedling branches, saving time and labor cost, and improving production efficiency.

[0037] In some embodiments, the first knife holder 1 is further provided with a first driving mechanism for driving the first knife head 10 to close, the first driving mechanism comprising a driving part and a connecting part, the driving part being oppositely arranged on both sides of the first knife head 10, wherein the driving part can be realized by elements such as cylinders and motors that can provide driving force, which is not limited herein; the connecting part comprises two oppositely arranged straight plates 13, the front ends of the straight plates 13 are provided with inclined parts, the inclined parts on the two straight plates 13 match each other, the inclined parts are provided with semicircular notches, the semicircular notches are closed to form a second circular hole, the diameter of the second circular hole is greater than or equal to the diameter of the first circular hole, and through the matching of the inclined parts on the two straight plates 13, the two semicircular holes of the first knife head 10 can be closed and matched more tightly, enhancing the stability of the structure of the first knife head 10.

[0038] In some embodiments, the first knife seat 1 is further provided with at least two first limiting plates 11 for limiting the running direction of the straight plates 13, and at least two second limiting plates 17 for limiting the straight plates 13 in the direction of the seedling branches passing through. The first limiting plates 11 are oppositely arranged on both sides perpendicular to the running direction of the straight plates 13, and the two first limiting plates 11 have a spacing therebetween, the width of the spacing between the two first limiting plates 11 being equal to the width of the straight plates 13. The upper and lower sides of the two straight plates 13 are respectively attached to the two first limiting plates 11, and the two straight plates 13 run on the track formed by the spacing between the two first limiting plates 11. The second limiting plates 17 are oppositely arranged between and connected to the two first limiting plates 11. By limiting the two straight plates 13 through the second limiting plates 17, the straight plates 13 are prevented from falling during running.

[0039] In some embodiments, the second knife head 16 is in a ring structure, the inner edge of the second knife head 16 is circumferentially provided with a plurality of first elastic members 15, and the outer edge of the second knife head 16 is circumferentially provided with a plurality of second elastic members 14 for assisting in pressing the leaves and limiting during the leaf cutting process. The second elastic members 14 are arranged in groups with the first elastic members 15, the length of the first elastic members 15 is greater than or equal to the length of the second knife head 16, the knife groove 34 is a ring groove matched with the second knife head 16, and when the first knife seat 1 approaches the second knife seat 2 and drives the second knife head 16 to extend into the knife groove 34, the leaves are pressed by the first elastic members 15 and the second elastic members 14 on both sides of the knife groove 34 of the second knife seat 2, which prevents the leaves from deviating during the cutting process, resulting in poor leaf cutting effect, thereby ensuring that the leaves can be cut in place. The first elastic members 15 and the second elastic members 14 can be realized by elastic elements such as springs, which are not limited herein.

[0040] In some embodiments, the aperture size of the second through hole 35 gradually decreases in the direction away from the first knife seat 1, forming a first inclined surface 33 for spreading the leaves when the seedling branches pass through the second through hole 35. Since the leaves on the seedling branches are usually in disorder, the first inclined surface 33 formed by the gradual decrease of the aperture size of the second through hole 35 blocks and spreads the oversized leaves on the seedling branches in the circumferential direction of the second through hole 35, effectively avoiding the situation that the leaves cannot be cut due to rolling and shrinking. A plurality of detection elements 31 are arranged on the second knife seat 2 along the circumferential direction of the second through hole 35 for detecting the positions of the buds and leaves on the seedling branches. According to the detected positions of the buds and leaves, the seedling branches are adjusted to separate the leaves and the buds, avoiding damage to the buds due to operation errors, effectively protecting the seedlings and ensuring the survival rate of the cuttings.

[0041] In some embodiments, the surface of the second knife seat 2 in contact with the first elastic member 15 is a second inclined surface 36. The second inclined surface 36 can protect the blade part to be retained when the first elastic member 15 is pressed against the blade, so that the blade is inclined to the second inclined surface 36, preventing the first elastic member 15 from crushing or bruising the blade part to be retained.

[0042] In some embodiments, the first knife seat 1 and the second knife seat 2 are respectively connected with a second driving mechanism 8 for driving the first knife seat 1 and the second knife seat 2 to move on the mounting seat 7. The second driving mechanism 8 includes a first driving end and a second driving end. The first driving end is connected with the first knife seat 1, and the second driving end is connected with the second knife seat 2. The second driving mechanism 8 can be realized by elements such as air cylinders and motors that can provide driving force, which is not limited herein.

[0043] In some embodiments, the centering assembly 3 includes at least two coaxially rotating centering parts 19 and a driving arm 38 for driving the two centering parts 19 to rotate. The two centering parts 19 are respectively provided with a third through hole 18 for passing through the seedling branches. The first through hole 12, the second through hole 35 and the third through hole 18 are coaxial holes. The third through hole 18 gradually narrows along the direction tangent to the rotation of the centering part 19. The narrowing directions of the two third through holes 18 are opposite. The two centering parts 19 are respectively provided with a first long slot 37. The two first long slots 37 are crosswise arranged. The intersection of the two first long slots 37 is located on the line between the center of the first through hole 12 and the center of the rotation shaft of the centering part 19.

[0044] In some embodiments, the mounting seat 7 is further provided with a first mounting plate 30 for mounting the centering assembly 3. The first mounting plate 30 is provided with a second long slot 21. The second long slot 21 is arranged on the line between the center of the first through hole 12 and the center of the rotation shaft of the centering part 19. One end of the driving arm 38 is connected to the intersection of the second long slot 21 and the two first long slots 37 through a first driving pin 20. The driving arm 38 is provided with a bent part. A second driving pin 32 is arranged between the bent part of the driving arm 38 and the first mounting plate 30. The driving arm 38 can rotate around the second driving pin 32 as the rotation point. The rotation of the driving arm 38 drives the first driving pin 20 to move on the second long slot 21, thereby changing the position of the intersection of the second long slot 21 and the two first long slots 37, and further driving the two centering parts 19 to rotate coaxially.

[0045] In some embodiments, the third through hole 18 includes an expansion part and a narrowing part, the expansion part of the two third through holes 18 forms a third circular hole, and the narrowing part of the two third through holes 18 forms a fourth circular hole during the rotation of the two centering parts 19, the aperture of the third circular hole is larger than that of the fourth circular hole, the expansion part of the third through hole 18 on the two centering parts 19 is brought together to form the third circular hole through the coaxial and opposite rotation of the two centering parts 19, which facilitates the passing of the seedling branch through the third through hole 18, and the narrowing part of the third through hole 18 on the two centering parts 19 is gradually brought together through the coaxial and opposite rotation of the two centering parts 19 to position the seedling branch at the center of the third through hole 18, since the seedling branch can be bent, the positioning and clamping of the two centering parts 19 facilitate subsequent leaf cutting, leaf removal and other operations on the seedling branch.

[0046] In some embodiments, the centering assembly 3 further includes a connecting piece 28 and a driving piece 25, one end of the driving arm 38 is connected with the two centering parts 19, the other end is connected with the connecting piece 28, the driving piece 25 and the driving arm 38 have a gap and are connected with each other through the connecting piece 28, the connecting piece 28 and the driving arm 38 are rotationally connected, the connecting piece 28 and the driving piece 25 are fixedly connected, the third elastic piece 23 for pulling the driving arm 38 to rotate is arranged between the driving piece 25 and the driving arm 38, the driving piece 25 and the driving arm 38 are respectively provided with a clasp 24, the third elastic piece 23 is connected between the two clasps 24, one end of the driving piece 25 is connected with the first driving unit 22 for providing driving force, wherein the first driving unit 22 can be realized by elements such as air cylinders and motors that can provide driving force, which is not limited herein; the driving piece 25 is driven by the first driving unit 22 to move downwardly with the connecting piece 28, so that the third elastic piece 23 is stressed to pull the driving arm 38, and the driving arm 38 is driven to rotate around the second driving pin 32 as a rotation fulcrum through the rotational connection between the connecting piece 28 and the driving arm 38, the driving force of the driving arm 38 can be changed by changing the elastic force of the third elastic piece 23, so as to meet the clamping needs of different types of seedling branches, and the driving force of the driving arm 38 is buffered when clamping the seedling branch through the elastic force of the third elastic piece 23, so as to protect the seedling when clamping the seedling branch, wherein the third elastic piece 23 can be realized by elastic elements such as springs, which is not limited herein.

[0047] In some embodiments, one side of the driving arm 38 is provided with a limiting piece 26 for limiting the driving arm 38, the limiting piece 26 is provided with a blocking part, the blocking part is arranged below the connecting piece 28, the rotating connection between the connecting piece 28 and the driving arm 38 is provided with a third driving pin 29, the third driving pin 29 extends above the blocking part, the limiting piece 26 is also provided with a third long slot 39, the second driving pin 32 is arranged on the third long slot 39, during the rotation of the driving arm 38, the connecting piece 28 and the driving piece 25 keep synchronous movement, and move towards the limiting piece 26, the third driving pin 29 arranged at the rotating connection between the connecting piece 28 and the driving arm 38 contacts the blocking part on the limiting piece 26, so as to limit the rotation distance of the driving arm 38, so as to control the clamping force of the centering part 19, prevent the travel distance of the driving arm 38 from exceeding the range, cause the clamping force to be too large, clamp the seedling branches, or even break the seedling branches, effectively protect the seedlings, one end of the limiting piece 26 is connected with a second driving unit 27 for driving the limiting piece 26 to move, when it is necessary to reset the centering part 19, the limiting piece 26 is driven by the second driving unit 27 to move, so that the limiting piece 26 gives way, and the blocking part no longer blocks the third driving pin 29, wherein the second driving unit 27 can be realized by elements such as cylinders and motors which can provide driving power, which is not limited herein.

[0048] In some embodiments, the clamping assembly 5 includes two oppositely arranged clamping arms 47 and a third driving unit 46, the third driving unit 46 drives the two clamping arms 47 to clamp or release the seedling branches, and drives the clamping arms 47 to move up and down or horizontally, the mounting seat 7 is also provided with a lead screw 45, the clamping assembly 5 is arranged on the lead screw 45, the third driving unit 46 drives the clamping arms 47 to move up and down or horizontally on the lead screw 45, so as to drive the seedling branches to move, the third driving unit 46 drives the two clamping arms 47 to approach each other to clamp the seedling branches or move away to release the seedling branches, wherein the third driving unit 46 can be realized by elements such as cylinders and motors which can provide driving power, which is not limited herein.

[0049] In some embodiments, the shearing assembly 4 includes two groups of blades 42, each group of blades 42 includes two oppositely arranged blades 42, and the two blades 42 are driven to approach each other by the fourth driving unit 40 to shear the branches. The two groups of blades 42 are spaced apart in the direction in which the seedling branches pass, and the distance between the two groups of blades 42 is set according to the length of the cutting branches required. The two groups of blades 42 are arranged on the slide rails 41, and the blades 42 are driven to approach each other on the slide rails 41 by the fourth driving unit 40, thereby ensuring the stability of the shearing force and the smoothness of the cut surface after the branches are sheared. The two groups of blades 42 are also provided with a leaf blocking member 43 for pushing away the leaves during shearing. The leaf blocking member 43 is arranged between the blades 42 of the two groups of blades 42 in the direction in which the seedling branches pass. The leaf blocking member 43 includes a blocking portion and a connecting portion. The connecting portion is fixed to the mounting seat 7, and the blocking portion is in a U-shaped structure. The U-shaped blocking portion pushes away the remaining leaves on the seedling branches, thereby preventing the leaves from being cut during the shearing of the branches and affecting the survival rate of the cuttings. The fourth driving unit 40 can be realized by elements such as air cylinders and motors that can provide driving force, and this is not limited herein.

[0050] In some embodiments, the mounting seat 7 is provided with a connecting rod 6. The connecting rod 6 is arranged in groups side by side. The first blade seat 1, the second blade seat 2, the centering assembly 3, and the second mounting plate 44 are sequentially arranged on the connecting rod 6. The first blade seat 1 is movably arranged on the connecting rod 6. The second blade seat 2 and the centering assembly 3 are movably arranged on the connecting rod 6. The second mounting plate 44 is fixedly arranged on the connecting rod 6. The second mounting plate 44 is arranged between the centering assembly 3 and the shearing assembly 4. The connecting rod 6 enables the second blade seat 2 and the centering assembly 3 to move synchronously between the first blade seat 1 and the second mounting plate 44. The second mounting plate 44 limits the movement distance of the second blade seat 2 and the centering assembly 3 on the mounting seat 7. The two centering portions 19 on the centering assembly 3 rotate coaxially about the connecting rod 6.

[0051] In summary, the specific use and effects of the present embodiment are as follows:

[0052] Firstly, the seedling branch is sequentially threaded through the first through hole 12, the second through hole 35 and the third through hole 18 from the tip of the branch. In the initial state, the first cutter seat 1 and the second cutter seat 2 are close to each other, facilitating the threading of the seedling branch. The first driving unit 22 is started to drive the driving member 25 and the connecting member 28 to move downward at the same time. The third elastic member 23 is stressed to drive the driving arm 38 to rotate around the second driving pin 32 as the rotating fulcrum. Through the rotation of the driving arm 38, the first driving pin 20 is driven to move on the second long slot hole 21 on the centering part 19, changing the position of the intersection of the second long slot hole 21 and the two first long slot holes 37, thereby driving the two centering parts 19 to rotate coaxially and reversely, so that the reduced parts of the third through hole 18 on the two centering parts 19 are close to each other to form a fourth circular hole, and the seedling branch is centered and clamped. In the process of rotating the driving arm 38, the third driving pin 29 passing through the rotating connection between the connecting member 28 and the driving arm 38 contacts the blocking part on the limiting member 26, thereby limiting the rotating distance of the driving arm 38, controlling the clamping force of the centering part 19, preventing the advancing distance of the driving arm 38 from exceeding the range, causing the clamping force to be too large to damage the seedling branch or even break the seedling branch, and effectively protecting the seedling.

[0053] After the centering assembly 3 positions the seedling branch at the center of the three through holes and clamps the seedling branch, the second driving end of the second driving mechanism 8 is started to drive the second cutter seat 2 away from the first cutter seat 1 and move to the second mounting plate 44, and at the same time, the centering assembly 3 moves with the second cutter seat 2 to move the seedling branch to the clamping assembly 5. The third driving unit 46 is started to drive the two clamping arms 47 to move downward to the position of the seedling branch, and then drive the two clamping arms 47 to close to clamp the seedling branch. The centering assembly 3 releases the seedling branch and resets. The third driving unit 46 is started again to drive the two clamping arms 47 to move the seedling branch, so that the leaves on the seedling branch move to the detection element 31 on the second cutter seat 2 to detect the position of the leaves and sprouts on the seedling branch. According to the detection result, the clamping position of the seedling branch is adjusted. After the clamping position of the seedling branch is adjusted, the centering assembly 3 is started again to reposition the seedling branch, so that the seedling branch is positioned at the center of the second through hole 35. At this time, the excessive leaves near the sprout will be spread in the circumferential direction of the second through hole 35 to separate the sprout and the leaves, preventing the leaves from being missed. The first driving end of the second driving mechanism 8 is started to drive the first cutter seat 1 to close to the second cutter seat 2, so that the first elastic member 15 and the second elastic member 14 press the leaves on both sides of the knife groove 34 of the second cutter seat 2. Continue to move the first cutter seat 1 to make the second cutter head 16 move into the knife groove 34 to shear the leaves. After the leaf shearing operation is completed, the first driving mechanism is started to drive the two semicircular plates of the first cutter head 10 to close, and at the same time, the centering assembly 3 releases the seedling branch. The third driving unit 46 is started again to drive the two clamping arms 47 to move the seedling branch to the shearing assembly 4. At the same time of moving, the first cutter head 10 removes the excess leaves on the seedling branch through the trumpet-shaped large mouth to complete the leaf removal operation.

[0054] After the leaf cutting and leaf removing operation is completed, the third driving unit 46 continues to drive the two clamping arms 47 to move the seedling branch, so that the seedling branch segment that has completed the leaf cutting and leaf removing operation is moved to the gap between the two groups of blades 42, the remaining leaves on the seedling branch are pushed away by the leaf blocking member 43, the fourth driving unit 40 is started to drive the blades 42 of the blade 42 group to close to cut the branch, the seedling branch segment that has completed the leaf cutting and leaf removing operation is cut off, after the cutting operation is completed, the detection element 31 on the second cutter seat 2 detects the position of the bud and the leaf on the remaining seedling branch, when the detection element 31 detects that there is still a bud and a leaf on the seedling branch, it is determined that the remaining seedling branch still has a part to be processed, and the above-mentioned leaf cutting, leaf removing and branch cutting operations are continuously repeated, when the detection element 31 detects that there is no bud and leaf on the seedling branch, it is determined that the remaining seedling branch has no part to be processed, the third driving unit 46 drives the two clamping arms 47 to clamp the remaining seedling branch waste segment and move it upward, then move it to the right to take away and discard the remaining seedling branch waste segment, after the discarding operation is completed, the third driving unit 46 drives the two clamping arms 47 to reset.

[0055] The above-mentioned embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A device for seedling pruning, characterized by, The utility model relates to a seedling cutting device, which comprises: a mounting seat, first and second knife seats oppositely arranged on the mounting seat and movable relative to each other on the mounting seat; the first knife seat is provided with a first through hole for passing through the seedling branches on the first knife seat, and the first knife seat is provided with a first cutter head for removing the end leaves of the seedling branches on the side away from the second knife seat, the first cutter head comprises two oppositely arranged semicircular plates, a semicircular hole is formed in the center of each of the two semicircular plates, and the first circular hole is formed by folding the two semicircular holes, the first circular hole is trumpet-shaped and extends away from the second knife seat; the first knife seat is provided with a second cutter head for cutting leaves and a first elastic member for pressing leaves on the side close to the second knife seat, the first knife seat is further provided with a first driving mechanism for driving the first cutter head to fold, the first driving mechanism comprises a driving part and a connecting part, the connecting part comprises two oppositely arranged straight plates, the front end of each straight plate is provided with an inclined part, the inclined parts on the two straight plates match each other, a semicircular notch is arranged on the inclined part, the second circular hole is formed by folding the semicircular notches, and the diameter of the second circular hole is greater than or equal to the diameter of the extended part of the first circular hole; the second knife seat is provided with a cutter groove matched with the second cutter head, and the second knife seat is provided with a second through hole for passing through the seedling branches; the second knife seat is fixedly connected with a centering assembly for positioning and clamping the seedling branches on the side away from the first knife seat, the centering assembly can move with the second knife seat, and the centering assembly is provided with a clamping assembly for clamping the seedling branches and a shearing assembly for shearing the seedling branches on the side away from the second knife seat.

2. The device according to claim 1, characterized in that: The second cutter head is in the form of a ring, a plurality of first elastic members are arranged on the inner periphery of the second cutter head in a circumferential direction, a plurality of second elastic members are arranged on the outer periphery of the second cutter head in a circumferential direction for assisting in pressing the leaves and limiting the position during the leaf cutting process, the length of the first elastic member is greater than or equal to the length of the second cutter head, and the cutter groove is in the form of a ring groove matched with the second cutter head.

3. The device according to claim 1, characterized in that: The diameter of the second through hole gradually decreases in the direction away from the first knife seat for spreading the leaves when the seedling branches pass through the second through hole, a plurality of detection elements are arranged on the second knife seat in the circumferential direction of the second through hole for detecting the positions of the spores and leaves on the seedling branches.

4. The device according to claim 1, characterized in that: The centering assembly comprises at least two coaxially rotating centering parts, and a driving arm for driving the two centering parts to rotate, the two centering parts are respectively provided with a third through hole for passing through the seedling branch, the third through hole gradually reduces along the tangential direction of the rotation of the centering part, the reducing directions of the two third through holes are opposite, the two centering parts are respectively provided with a first long slot, the two first long slots are intersected, the intersection of the two first long slots is located on the line between the center of the first through hole and the center of the rotation shaft of the centering part, the mounting seat is further provided with a first mounting plate for mounting the centering assembly, the first mounting plate is provided with a second long slot, the second long slot is located on the line between the center of the first through hole and the center of the rotation shaft of the centering part, one end of the driving arm is connected to the intersection of the second long slot and the two first long slots through a first driving pin, the driving arm is provided with a bending part, a second driving pin is arranged between the bending part of the driving arm and the first mounting plate, and the driving arm can rotate around the second driving pin as the rotation support point.

5. A device for pinching according to claim 4, characterized in that: The centering assembly further comprises a connecting piece and a driving piece, one end of the driving arm is connected with the two centering parts, the other end is connected with the connecting piece, the driving piece and the driving arm are connected through the connecting piece, the connecting piece and the driving arm are rotationally connected, a third elastic piece for pulling the driving arm to rotate is arranged between the driving piece and the driving arm, the driving piece and the driving arm are respectively provided with a hook, the third elastic piece is connected between the two hooks, and one end of the driving piece is connected with a first driving unit for providing driving force.

6. A device for pinching according to claim 5, characterized in that: One side of the driving arm is provided with a limiting piece for limiting the driving arm, the limiting piece is provided with a blocking part, the blocking part is arranged below the connecting piece, a third driving pin is arranged at the rotation connection between the connecting piece and the driving arm, the third driving pin extends above the blocking part, and a third long slot is further arranged on the limiting piece, the second driving pin is arranged on the third long slot, and one end of the limiting piece is connected with a second driving unit for driving the limiting piece to move.

7. The device according to claim 1, wherein: The second driving mechanism for driving the first cutter seat and the second cutter seat to move comprises a first driving end and a second driving end, the first driving end is connected with the first cutter seat, and the second driving end is connected with the second cutter seat.

8. The device according to claim 1, wherein: The clamping assembly comprises two oppositely arranged clamping arms and a third driving unit, the third driving unit drives the two clamping arms to clamp or release the seedling branch and drives the clamping arms to move up and down or horizontally.

9. The device according to claim 1, wherein: The shearing assembly comprises two groups of blade sets and a fourth driving unit, each blade set comprises two opposite blades, the fourth driving unit drives the two blades to approach each other to shear the branches, the two groups of blade sets are spaced apart in the direction along which the seedling branches pass, and a leaf blocking member is arranged between the two groups of blade sets to push away the leaves during shearing.

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