Seedling clamping mechanism for mechanical grafting
Technical Field
The invention relates to a grafting device, in particular to a seedling clamping mechanism for mechanical grafting.
Background
China is a large grape planting country, and the planting area, yield and consumption of fresh grapes are all the first in the world. The grafting cultivation can enrich varieties, improve quality and ecological stress resistance, and is a main way for breeding grapes at present. Compared with the traditional manual grafting, the mechanical grafting adopts grafting machinery to complete the grafting process, has the advantages of high grafting efficiency, small labor intensity of workers, easy guarantee of grafting quality and the like, and has important practical significance for realizing industrial production of seedling raising and promoting healthy development of grape planting industry.
Compared with the mechanical grafting equipment for vegetables, the mechanical grafting equipment for seedlings has the advantages of late study start and less results. The products reported in the literature are only Omega-Uno semi-automatic grape grafting machines of Wahler company, germany, and PJJ-50 grape grafting machines developed by the research institute of tobacco stand agricultural machinery. Compared with manual grafting, the semi-automatic grafting machine can remarkably improve the grafting efficiency, but also has the problems of low automation degree, dependence on the level of an operator on the grafting quality, difficulty in further improvement of the grafting efficiency and the like.
In recent years, with the increase of labor cost and the loss of technical workers, the semiautomatic grafting machine is gradually unable to meet the development needs of industry, and research on mechanical grafting equipment for seedlings with higher automation degree is urgently needed.
The Chinese patent of the issued publication No. CN110651622B discloses a cutting and jointing device for automatic grafting of nursery stock, which comprises a bracket, a cutting and jointing mechanism and a stock moving mechanism, wherein the cutting and jointing mechanism is provided with a fixed seat and a moving seat, the moving seat is arranged above the fixed seat, the fixed seat is connected with the bracket, the bottom of one end of the moving seat is provided with a grafting blade, and the moving seat is driven to move up and down to drive the grafting blade to move to complete the cutting action; the fixed seat is connected with the wood spike supporting component and the stock supporting component, the wood spike supporting component is provided with a wood spike front support and a wood spike rear support, and the wood spike front support is driven by a cylinder to move up and down; the stock supporting component is provided with a stock front support and a stock rear support, the stock front support is connected with a stock moving mechanism, and the stock moving mechanism drives the stock front support to move up and down.
The Chinese patent publication No. CN110663376B discloses a stock and spike support mechanism for automatic grafting, which comprises a spike support assembly and a stock support assembly: the spike wood supporting component is provided with a spike wood front support and a spike wood rear support, and the spike wood front support and the spike wood rear support are respectively arranged at two sides of the movable seat; the stock supporting component is provided with a stock front support and a stock rear support, and the stock front support and the stock rear support are respectively arranged at two sides below the movable seat; the front support of the spike and the front support of the stock are respectively connected with the driving part, and the front support of the spike and the front support of the stock are driven to move in the vertical direction.
The technology provides an automatic grafting device for nursery stock, but has the following defects:
firstly, a clamping component used for a cutting process is not configured, in order to prevent position deviation of stocks and scions in the cutting process and influence grafting quality, an operation manipulator is needed to be additionally used for assisting in completing a cutting joint process, and equipment cost and system control difficulty are increased due to the operation manipulator.
Secondly, a clamping component used for seedling discharging is not configured, the grafted seedlings which are well connected are only supported by the front support of the ascending stock, in order to prevent the grafted seedlings from inclining and increasing seedling discharging difficulty, an operation manipulator is also required to be matched for clamping, the system control difficulty is further increased, and the structure of the manipulator end effector is further complicated.
Thirdly, the design of the stock moving mechanism is not reasonable enough, on one hand, the stock moving mechanism is arranged on the right side of the grafting knife, so that the grafted seedlings which are well connected cannot be directly moved to the right side to be discharged, but only can be moved to the left side to the position with larger gap and then moved forward to be discharged, and the seedling discharging operation difficulty is increased; and the contact area between the follower electromagnet and the movable seat is smaller, the gap is not easy to adjust, and the working performance is unreliable.
Disclosure of Invention
The invention aims to solve the technical problem of providing a seedling clamping mechanism for mechanical grafting, which can be used for positioning and reliably clamping stocks and scions in the mechanical grafting process and assisting in completing cutting, jointing and seedling discharging operations. .
In order to solve the technical problems, the invention adopts the following technical means:
a seedling clamping mechanism for mechanical grafting comprises a seedling supporting component, a cutting clamping component and a seedling discharging clamping component; the seedling support assembly is provided with a spike movable support, a spike fixed support, a stock movable support and a stock fixed support; the scion movable support and the scion fixed support are respectively arranged at the front side and the rear side of the grafting blade, the stock fixed support is arranged right below the scion fixed support, and the stock movable support is arranged right in front of the stock fixed support; the scion wood movable support and the stock movable support move up and down along the vertical direction under the action of the corresponding driving mechanisms; the cutting clamping assembly is provided with a clamping cylinder, a cylinder seat, a clamping body, a stock pressing block and a spike pressing block; the clamping cylinder adopts a lever cylinder and is arranged on the bottom plate through a cylinder seat; the clamp body is sleeved on the connecting rod of the clamping cylinder and is provided with a stock pressing groove and a spike pressing groove; the stock pressing block and the spike pressing block are respectively sleeved in the stock pressing block groove and the spike pressing block groove, and form a moving pair with the clamp body; the extension and retraction of the clamping cylinder respectively correspond to the clamping and loosening states of the cutting clamping assembly; the clamping cylinder is in a clamping state when extending out, the scion pressing block is positioned right above the scion movable support, and the stock pressing block is positioned right above a gap between the stock movable support and the stock fixed support; pressing the stock pressing block to position the stock, and pressing the spike pressing block to position the spike; after cutting, one end of the stock is clamped outside an omega cutting edge on the grafting blade, and the middle part of the stock is lapped on a stock movable support; in this case, the uplink component includes: the grafting blade, a movable seat for driving the grafting blade to move upwards, a stock movable support, a support moving mechanism for driving the stock to move upwards, a stock and a spike, wherein the spike is clamped inside the omega cutting edge; when the clamping cylinder is retracted, the clamping cylinder is in a loosening state, and the spike pressing block and the stock pressing block can avoid an upward spike moving support and a stock; the stock pressing block is arranged between the stock movable support and the stock fixed support, so that the stock at the fixed support can bear larger counter force, and the clamping and cutting effects are better; after cutting, the grafting knife, the stock movable support, the cut stock seedlings and the scion movable support all need to go upwards, and the arrangement avoids interference between the scion pressing block in a loosening state and the stock pressing block; the seedling discharging clamping assembly is provided with a seedling discharging sliding table, an upright post mounting seat, a seedling pressing cylinder seat, a connecting seat and a seedling pressing block; the seedling arranging slipway adopts a linear guide rail slipway cylinder and is arranged on the bottom plate; the stand column is arranged on the seedling arranging slipway through a stand column mounting seat and can move along with the slipway; the connecting seat is arranged on the upright post; the seedling pressing cylinder is arranged on the connecting seat through a seedling pressing cylinder seat; the seedling pressing block is arranged at the tail end of a piston rod of the seedling pressing cylinder.
Compared with the prior art, the invention adopting the technical scheme has the outstanding characteristics that:
(1) The cutting clamping assembly is used for clamping the stock and the spike wood in the cutting process; when the stock is placed on the stock movable support and the stock fixed support, and the scion is placed on the scion movable support and the scion fixed support, the clamping cylinder can be controlled to extend, and the stock pressing block and the scion pressing block move along with the clamp body to clamp the stock and the scion, so that the position deviation of the stock and the scion in the cutting process is prevented, and the cutting quality is influenced.
(2) The seedling discharging clamping assembly is used for clamping grafted seedlings in the seedling discharging process; when the stock seedlings and the spike seedlings are connected, the seedling pressing cylinder drives the seedling pressing block to move downwards to clamp the grafted seedlings, so that the grafted seedlings can be prevented from tilting or falling off in the seedling discharging process to cause failure in the seedling discharging process; and then the seedling discharging sliding table acts to discharge the grafted seedlings. The seedling discharging clamping assembly is directly or indirectly arranged on the seedling discharging sliding table except for other parts except for the seedling discharging sliding table and other parts except for the follower rack in the support moving mechanism, and when the seedling discharging sliding table acts and stretches out, the parts simultaneously move outwards to drive grafted seedlings to move outwards and discharge in the clamping state of the stock moving support and the seedling pressing block.
(3) The driving mechanism of the stock movable support is arranged at the front side of the cutting mechanism, so that grafted seedlings are conveniently discharged from the right side of the grafting knife, the seedling discharging process is simplified, and the seedling discharging difficulty is reduced.
(4) Through setting up cutting clamping component, row seedling clamping component, make whole process no longer need the cooperation of operation manipulator, the system control degree of difficulty and equipment cost effectively reduce.
A further preferred technical scheme is as follows:
the stock pressing blocks and the spike pressing blocks are connected with the clamp body through pressure springs and connecting bolts; the compressed springs are respectively sleeved in the stock pressing groove and the spike pressing groove; the connecting bolts are arranged, the lower ends of the connecting bolts are respectively arranged on the stock pressing block and the spike pressing block, and the upper ends of the connecting bolts penetrate through the pressure springs and are sleeved on the clamp body.
Through setting up the pressure spring, can make cutting clamping assembly satisfy the needs of the reliable centre gripping of different thickness nursery stocks, set up connecting bolt, can prevent stock briquetting, spike wood briquetting break away from the anchor clamps body.
The scion movable support and the scion fixed support are respectively provided with a semicircular groove for placing scion, the stock movable support and the stock fixed support are respectively provided with a semicircular groove for placing a stock, the stock pressing block and the seedling pressing block are respectively provided with a shallow circular groove for pressing the stock, and the scion pressing block is provided with a shallow circular groove for pressing the scion; and when the cutting clamping assembly is in a clamping state, the central axes of the four semicircular arc grooves and the three shallow arc grooves are all distributed in the same vertical plane. The central axes of the arc grooves are on the same vertical surface, so that the stock and the spike wood can be aligned up and down, the jointing process is easier to complete, and the success rate of grafting is improved.
The semi-circular groove on the supporting part and the shallow circular groove on the clamping part are matched for use, so that the positioning and clamping of the stock and the spike can be facilitated, and the cutting and grafting accuracy is improved; meanwhile, the clamp is also suitable for clamping stocks and spike wood with different thickness.
The rear end of the movable scion wood support is provided with a groove matched with the outer side shape of the grafting blade, the front end of the fixed scion wood support is provided with a convex block matched with the inner side shape of the grafting blade, a gap is arranged between the groove and the convex block, and the gap accommodates the grafting blade to pass through; the stock fixed support is provided with a cutter containing groove matched with the shape of the grafting blade.
By arranging the grooves and the protruding blocks, the intervals between the movable scion wood support and the fixed scion wood support can be effectively reduced, the intervals are matched with the grafting blade perfectly, the support for scion wood in the cutting process is increased, the cutting precision is improved, and the damage caused by the cutting pressure is reduced; through setting up the sword groove, can add the support to the stock in the cutting process, improve cutting accuracy, reduce the damage that cutting pressure caused, also ensure simultaneously can cut off the stock smoothly.
The spike wood movable support is driven by a lifting cylinder; the lifting cylinder adopts a double-shaft double-rod cylinder and is arranged on the fixed seat through an L-shaped connecting seat; the ear wood movable support is arranged at the tail end of a piston rod of the lifting cylinder.
The movable support of the spike wood is lifted, so that the spike wood can be removed from an operation area, and the bottom surface of the movable support can block the ascending stock seedling to complete the jointing operation.
The support moving mechanism is provided with a connecting plate, a sliding rail, a sliding block, a stop block, an electromagnet seat, a follower electromagnet, a fixed electromagnet and a follower rack; the connecting plate is arranged on the upright post and is used as a mounting foundation of other components; the sliding block is arranged on the sliding rail, and the sliding rail is arranged on the connecting plate; the baffle block is arranged on the connecting plate and at the lower part of the sliding rail, and the front end of the baffle block can block the sliding block to prevent the sliding block from being separated from the sliding rail; the concave electromagnet seat is arranged on the sliding block and moves along with the sliding block; the fixed electromagnet and the follower electromagnet are respectively arranged at the left side and the right side of the electromagnet seat, and the stock movable support is arranged in the middle of the electromagnet seat; the follower rack is arranged on the movable seat, and the installation position is adjustable; the distance between the electromagnet and the follower electromagnet can be changed by adjusting the installation position of the electromagnet.
Through setting up the cooperation work of retinue frame and retinue electro-magnet, both area of contact is big, and the clearance is adjustable, and working property is more reliable, makes support moving mechanism's design more reasonable.
The action of the follow-up electromagnet enables the movable support of the stock to support the stock to move upwards along with the grafting knife, because one end of the stock is clamped on the grafting knife, the stock is longer, if the movable support is not supported, the other end of the stock sags, and the jointing process cannot be completed. The grafting knife is arranged on the movable seat, the follower frame is also arranged on the movable seat, and the movable support and the movable seat of the stock can be driven to move together after the follower electromagnet is attracted on the follower frame.
The front end of the follower frame is opposite to the working surface of the follower electromagnet, the gap between the front end of the follower frame and the working surface of the follower electromagnet is small, and the follower electromagnet can be adsorbed on the follower frame after being electrified, so that the stock moving support can support the stock to move upwards along with the grafting blade, and the stock and the scion can be ensured to be smoothly jointed; the working face of the fixed electromagnet is opposite to the inner side face of the left end of the connecting seat, the gap between the working face and the inner side face is smaller, and the fixed electromagnet can be adsorbed on the connecting seat after being electrified, so that the movable support of the stock can be stopped at the joint position of the stock and the spike to support the grafted seedlings after the joint.
The fixed electromagnet has the function of enabling the stock movable support to support the grafted seedlings after being jointed. Before the grafting, the stock and the spike are respectively clamped at the outer side and the inner side of the omega cutting edge and move upwards along with the grafting knife; when the joint positions are jointed, the stock and the scion are blocked by the lower end surface of the scion movable support and the blocking strip respectively, the grafting knife is pulled upwards away, and the stock and the scion are jointed; at the moment, the movable support of the stock is required to stop at the joint position to continuously support the stock; therefore, at the moment, the follow-up electromagnet is powered off to separate the stock movable support from the movable seat, and meanwhile, the electromagnet is powered on to stop the stock movable support at the joint position.
And a travel switch is arranged on the upright post, when the stock movable support supports the stock to move to the lower bottom surface of the lifted spike movable support, the travel switch is triggered, the follow electromagnet is powered off, and meanwhile, the electromagnet is fixed to obtain power.
By the arrangement, the stock movable support can support the stock to move upwards along with the grafting blade, the stock moves to the junction position of the stock and the scion, the travel switch is triggered, the fixed electromagnet is powered, the follow-up electromagnet is powered off, and the stock movable support supports the stock to stop at the junction position.
Drawings
Fig. 1 is a schematic view of the overall structure (cutting device) of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a seedling support assembly according to an embodiment of the invention.
Fig. 3 is a schematic diagram of a seedling support assembly according to an embodiment of the present invention.
FIG. 4 is a schematic view of a cutting clamping assembly according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a seedling clamping assembly according to an embodiment of the invention.
In the figure: the seedling cutting machine comprises a 1-seedling supporting component, a 2-cutting clamping component, a 3-seedling discharging clamping component, a 4-support moving mechanism, a 11-seedling moving support, a 12-seedling fixing support, a 13-stock moving support, a 14-stock fixing support, a 15-grafting blade, a 16-lifting cylinder, a 17-L-shaped connecting seat, a 18-fixing seat, a 19-moving seat, a 21-clamping cylinder, a 22-cylinder seat, a 23-clamp body, a 24-stock pressing block, a 25-seedling pressing block, a 26-bottom plate, a 27-pressure spring, a 28-connecting bolt, a 31-seedling discharging sliding table, a 32-upright, a 33-upright mounting seat, a 34-seedling pressing cylinder, a 35-seedling pressing cylinder seat, a 36-connecting seat, a 37-seedling pressing block, a 41-connecting plate, a 42-sliding rail, a 43-sliding block, a 44-stopper, a 45-electromagnet seat, a 46-follower electromagnet, a 47-fixed electromagnet and a 48-follower frame.
Detailed Description
The invention will be further illustrated with reference to the following examples.
Referring to fig. 1 to 5, the seedling clamping mechanism for mechanical grafting of the present invention comprises a seedling supporting component 1, a cutting clamping component 2 and a seedling discharging clamping component 3.
As can be seen from fig. 1 and 2, the seedling support assembly 1 is provided with a spike movable support 11, a spike fixed support 12, a stock movable support 13 and a stock fixed support 14; the scion movable support 11 and the scion fixed support 12 are respectively arranged at the front side and the rear side of the grafting blade 15, the stock fixed support 14 is arranged right below the scion fixed support 12, and the stock movable support 13 is arranged right in front of the stock fixed support 14; both the scion movable support 11 and the stock movable support 13 can move up and down along the vertical direction under the action of corresponding driving mechanisms.
As can be seen in fig. 1 and 4, the cutting clamping assembly 2 is provided with a clamping cylinder 21, a cylinder seat 22, a clamp body 23, a stock press 24 and a spike press 25; the clamping cylinder 21 is a lever cylinder and is arranged on the bottom plate 26 through the cylinder seat 22; the clamp body 23 is sleeved on a connecting rod of the clamping cylinder 21, and is provided with a stock pressing groove and a spike pressing groove; the stock pressing block 24 and the spike pressing block 25 are respectively sleeved in the stock pressing block groove and the spike pressing block groove of the clamp body 23, and form a moving pair with the stock pressing block groove and the spike pressing block groove.
Referring to fig. 1 and 5, the seedling arranging clamping assembly 3 is provided with a seedling arranging sliding table 31, a column 32, a column mounting seat 33, a seedling pressing cylinder 34, a seedling pressing cylinder seat 35, a connecting seat 36 and a seedling pressing block 37; the seedling arranging sliding table 31 adopts a linear guide rail type sliding table cylinder and is arranged on the bottom plate 26; the upright post 32 is arranged on the seedling arranging sliding table 31 through an upright post mounting seat 33 and can move along with the sliding table; the connecting seat 36 is mounted on the upright post 32; the seedling pressing cylinder 34 is arranged on the connecting seat 36 through a seedling pressing cylinder seat 35; the seedling pressing block 37 is installed at the end of the piston rod of the seedling pressing cylinder 34.
The stock pressing block 24 and the spike pressing block 25 are connected with the clamp body 23 through a pressure spring 27 and a connecting bolt 28; the number of the compression springs is 2, and the compression springs are respectively sleeved in the stock pressing block groove and the spike pressing block groove, and the stock pressing block 24, the spike pressing block 25 and the clamp body 23; the number of the connecting bolts 28 is 2, the lower ends of the connecting bolts are respectively arranged on the stock pressing block 24 and the spike pressing block 25, and the upper ends of the connecting bolts penetrate through the pressure springs 27 and are sleeved on the clamp body 23.
By arranging the pressure spring 27, the cutting clamping assembly 2 can meet the requirements of reliable clamping of seedlings with different thickness, and arranging the connecting bolt 28 can prevent the stock pressing block and the spike pressing block from being separated from the clamp body 23.
The extension and retraction of the clamping cylinder 21 respectively correspond to the clamping and loosening states of the cutting clamping assembly 2; in the clamping state, the scion pressing block 25 is positioned right above the scion movable support 11, and the stock pressing block 24 is positioned right above between the stock movable support 13 and the stock fixed support 14; in the released state, the spike press 25 and the stock press 24 can avoid the upward spike movable support 11 and the stock.
The stock pressing block 24 is arranged between the stock movable support 13 and the stock fixed support 14, so that the stock at the fixed support 14 can bear larger counter force, and the clamping and cutting effects are better; after cutting, the grafting knife, the stock moving support 13, the cut stock seedling and the scion moving support 11 all need to go upwards, and interference between the scion pressing block 25 in a loosening state and the stock pressing block 24 should be avoided.
The scion movable support 11 and the scion fixed support 12 are respectively provided with a semicircular groove for placing scion, the stock movable support 13 and the stock fixed support 14 are respectively provided with a semicircular groove for placing a stock, the stock pressing block 24 and the seedling pressing block 37 are respectively provided with a shallow circular groove for pressing the stock, and the scion pressing block 25 is provided with a shallow circular groove for pressing the scion; and when the cutting clamping assembly 2 is in a clamping state, the central axes of the four semicircular arc grooves and the three shallow arc grooves are all distributed in the same vertical plane.
The semi-circular groove on the supporting part and the shallow circular groove on the clamping part are matched for use, so that the positioning and clamping of the stock and the spike can be facilitated, and the cutting and grafting accuracy is improved; meanwhile, the clamp is also suitable for clamping stocks and spike wood with different thickness.
As can be seen from fig. 1 and 3, the rear end of the movable support 11 is provided with a groove matched with the outer side shape of the grafting blade 15, the front end of the fixed support 12 is provided with a protruding block matched with the inner side shape of the grafting blade 15, a gap is arranged between the groove and the protruding block, and the gap accommodates the grafting blade 15 to pass through; the stock fixing support 14 is provided with a cutter accommodating groove which is matched with the shape of the grafting blade 15 and has a certain depth and width.
By arranging the grooves and the protruding blocks, the intervals between the movable scion wood support 11 and the fixed scion wood support 12 can be effectively reduced, the intervals are matched with the grafting blade 15 perfectly, the support for scion wood in the cutting process is increased, the cutting precision is improved, and the damage caused by cutting pressure is reduced; through setting up the sword groove, can add the support to the stock in the cutting process, improve cutting accuracy, reduce the damage that cutting pressure caused, also ensure simultaneously can cut off the stock smoothly.
The spike wood movable support 11 is driven by a lifting cylinder 16; the lifting cylinder 16 adopts a double-shaft double-rod cylinder and is arranged on the fixed seat 18 through an L-shaped connecting seat 17; the ear wood movable support 11 is arranged at the tail end of a piston rod of the lifting cylinder 16.
The movable scion support 11 is lifted, so that scion removal can be carried away from an operation area, and the bottom surface of the movable scion support can block the ascending stock seedlings to complete the jointing operation in a matching way.
As can be seen from fig. 5, the stock moving support 13 is driven by a support moving mechanism 4, which is provided with a connecting plate 41, a sliding rail 42, a sliding block 43, a stop block 44, an electromagnet seat 45, a follower electromagnet 46, a fixed electromagnet 47 and a follower 48; the connection plate 41 is mounted on the upright post 32 as a mounting base for other components; the sliding block 43 is arranged on the sliding rail 42, and the sliding rail 42 is arranged on the connecting plate 41; the baffle block 44 is arranged on the connecting plate 41 and at the lower part of the sliding rail 42, and the front end of the baffle block 44 can block the sliding block 43 to avoid the sliding block from being separated from the sliding rail 42; the concave electromagnet seat 45 is arranged on the sliding block 43 and moves along with the sliding block 43; the fixed electromagnet 47 and the follower electromagnet 46 are respectively arranged at the left side and the right side of the electromagnet seat 45, and the stock movable support 13 is arranged in the middle of the electromagnet seat 45; the fixed electromagnet 47, the follower electromagnet 46, the electromagnet seat 45, the stock movable support 13 and the sliding block 43 can synchronously move along the sliding rail 42; the follower 48 is mounted on the movable base 19 with an adjustable mounting position, which can be adjusted to vary the distance from the follower electromagnet 46.
The front end of the follower 48 is opposite to the working surface of the follower electromagnet 46, the gap between the front end and the working surface is smaller, and when the follower electromagnet 46 is powered on, the front end can be adsorbed on the follower 48, so that the stock moving support 13 moves synchronously along with the moving seat 19; the working surface of the fixed electromagnet 47 is opposite to the inner side surface of the left end of the connecting seat 36, and the gap between the working surface and the inner side surface is smaller, so that the fixed electromagnet 47 can be adsorbed on the connecting seat 36 after being electrified, and the stock movable support 13 is fixed.
The stand column is provided with a travel switch, when the stock movable support 13 supports the stock to move to the lower bottom surface of the raised spike movable support 11, the travel switch is triggered, the accompanying electromagnet 46 is powered off, and meanwhile the fixed electromagnet 47 is powered on.
By the arrangement, the stock movable support 13 can support the stock to move upwards along with the grafting blade 15, the stock moves to the junction position of the stock and the scion, the travel switch is triggered, the fixed electromagnet 47 is powered on, the follower electromagnet 46 is powered off, and the stock movable support 13 supports the stock to stop at the junction position.
The advantages of this embodiment are:
(1) The cutting clamping assembly 2 is arranged for clamping the stock and the spike wood in the cutting process; when the stock is placed on the stock movable support 13 and the stock fixed support 14, and the scion is placed on the scion movable support 11 and the scion fixed support 12, the controllable clamping cylinder 21 stretches out, the stock pressing block 24 and the scion pressing block 25 move along with the clamp body 23, so that the stock and the scion are clamped, and the position deviation of the stock and the scion in the cutting process is prevented, and the cutting quality is prevented from being influenced.
(2) The seedling discharging clamping assembly 3 is arranged for clamping grafted seedlings in the seedling discharging process; when the stock seedlings and the spike seedlings are connected, the seedling pressing cylinder 34 drives the seedling pressing block 37 to move downwards to clamp the grafted seedlings, so that the grafted seedlings can be prevented from tilting or falling off in the seedling discharging process to cause failure in the seedling discharging process; and then the seedling discharging sliding table 31 acts to discharge the grafted seedlings.
(3) The driving mechanism of the stock movable support 13, namely the support moving mechanism 4 is designed more reasonably; on one hand, the seedling discharging device is arranged at the front side of the cutting mechanism, so that grafted seedlings are conveniently discharged from the right side of the grafting knife, the seedling discharging process is simplified, and the seedling discharging difficulty is reduced; on the other hand, the follower frame 48 and the follower electromagnet 46 are arranged to work cooperatively, the contact area of the two is large, the gap is adjustable, and the working performance is more reliable.
(4) The whole process does not need the cooperation of operation manipulators, and the system control difficulty and the equipment cost are effectively reduced. A further preferred technical scheme is as follows:
the foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the claims, but rather the equivalent structural changes made by the application of the present description and drawings are intended to be included within the scope of the claims.