CN112273019A - Seedling taking mechanism of automatic plug seedling transplanter - Google Patents

Abstract

The invention provides a seedling taking mechanism of an automatic plug seedling transplanter, which comprises a support frame, wherein the upper end in the support frame is provided with a push rod, the lower end of the push rod is provided with a push block which is connected with a clamping mechanism in a pushing and touching way, two sides of the clamping mechanism are provided with buffer mechanisms, the outer side of a sheet clamping rod of the clamping mechanism is hinged with a hinged transverse plate of the buffer mechanism, the clamping mechanism transversely moves along the hinged transverse plate of the buffer mechanism and rotates around the hinged position, the opening and closing of the clamping mechanism can be pushed by the pushing block, the buffer mechanism buffers when the clamping mechanism is opened and closed, the flaky clamping rods of the clamping mechanism are prevented from being scattered, plug seedlings are clamped through the opening and closing of the flaky clamping rods, the grabbing and placing of seedlings are completed, the mechanism can reduce the damage to the root of the seedling and the disintegration of the seedling substrate, and the seedling substrate has novel structure, easy operation and reliable performance.

Description

Seedling taking mechanism of automatic plug seedling transplanter

Technical Field

The invention relates to the technical field of plug seedling transplanting, in particular to a seedling taking mechanism of an automatic plug seedling transplanting machine.

Background

The seedling taking device on the market is mostly in a finger-clamping type, can be divided into a needle type and a sheet type according to clamping fingers, the needle type is that a seedling taking needle is inserted into a plug tray, a pot seedling substrate is clamped to take seedlings, the plug tray seedlings are delivered into a planting device to complete planting, and the seedling taking device can be divided into two needle types, three needle types and four needle types according to the number of the fingers. The sheet-shaped clamping fingers are inserted along the wall of the hole at a proper inclination angle and combined with an ejection mechanism to take the seedlings.

In recent years, research on seedling taking devices has become a hot spot in research in the field of automatic transplanting, and a seedling taking mechanism is taken as a key part of transplanting work, and the working performance of the part directly determines the quality and efficiency of transplanting. The seedling taking device can damage the roots of the seedlings to a certain degree, and the seedling matrix is easy to scatter.

Disclosure of Invention

In order to solve the problems, the invention provides a seedling taking mechanism of an automatic plug seedling transplanter.

The object of the invention is achieved in the following way:

the utility model provides an automatic transplanter of plug seedling mechanism of getting, includes the support frame, the inside upper end of support frame is equipped with the catch bar, the catch bar lower extreme is equipped with the ejector pad, the ejector pad top touches and connects clamping mechanism, the clamping mechanism both sides are equipped with buffer gear, and the articulated transverse plate of buffer gear is articulated in clamping mechanism's slice clamping bar outside, clamping mechanism follows buffer gear's articulated transverse plate lateral shifting and rotates around articulated department.

The clamping mechanism comprises oppositely arranged sheet clamping rods, hinged positioning plates are arranged on the outer sides of the sheet clamping rods and hinged with the hinged transverse plates through hinge pins, rolling bearings are hinged to the upper ends of the sheet clamping rods and are in contact connection with the peripheral sides of the pushing blocks.

The upper end of the sheet clamping rod is provided with a connecting ring, the connecting ring is connected with the telescopic piece, and the telescopic piece is connected with the sheet clamping rod which is oppositely arranged through the connecting ring.

The telescopic piece is a tension spring.

Buffer gear is including buffering the support, the buffering support is fixed in the support frame below, is equipped with buffer spring in the buffering support, articulated transverse plate is connected in alternate to buffering support one side, the one end that articulated transverse plate is close to buffer spring is equipped with the limiting plate, and articulated slice clamping bar of articulated transverse plate other end.

The buffer spring is a pressure spring.

The cross section of the pushing block is sequentially reduced from top to bottom.

The push rod is an electric push rod, a pneumatic push rod or a hydraulic oil cylinder.

The working end of the push rod is fixedly connected with the ejector pad through a double-end stud.

And locking nuts are arranged at two ends of the double-end stud.

Compared with the prior art, the seedling grabbing and placing mechanism has the advantages that the opening and closing of the clamping mechanism can be pushed through the pushing block, the buffering mechanism is used for buffering when the clamping mechanism is opened and closed, the flaky clamping rods of the clamping mechanism are prevented from being scattered, plug seedlings are clamped through the opening and closing of the flaky clamping rods, the seedling grabbing and placing are completed, the damage to the roots of the seedlings and the scattering of seedling matrixes can be reduced, and the seedling grabbing and placing mechanism is novel in structure, easy to operate and reliable in performance.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is an enlarged schematic view of a in fig. 1.

Fig. 3 is a schematic structural view of the push rod.

Fig. 4 is a schematic view of the structure of the sheet bar.

Fig. 5 is a schematic view of the mounting of the rolling bearing.

Fig. 6 is a schematic structural diagram of the support frame.

Fig. 7 is a schematic view of the opening and closing structure of the present invention.

Fig. 8 is a diagram showing the operational structure of the present invention.

The PPU manipulator comprises a support frame 1, a push rod 2, a double-end stud 3, a locking nut 4, a pushing block 5, a rolling bearing 6, a flaky clamping rod 7, a connecting ring 8, a telescopic piece 9, a hinged positioning plate 10, a hinged transverse plate 11, a pressure spring baffle 12, a buffer spring 13, a limiting plate 14, a connecting plate 15, a buffer support 16 and a PPU manipulator B.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in the accompanying drawings 1 to 8, a seedling mechanism is got to automatic transplanter of plug seedling, including support frame 1, 1 inside upper end of support frame is equipped with catch bar 2, 2 lower extremes of catch bar are equipped with top ejector pad 5, 5 tops of top ejector pad touch and connect clamping mechanism, the clamping mechanism both sides are equipped with buffer gear, the articulated transverse plate 11 of buffer gear is articulated in clamping mechanism's 7 outsides of slice clamping bar, clamping mechanism rotates along 11 lateral shifting of buffer gear's articulated transverse plate and articulated department, and clamping mechanism presss from both sides tight to plug seedling week side, avoids direct insertion matrix damage plug seedling root, and buffer gear cushions clamping mechanism, slows down the speed of clamping mechanism when the closed clamp seedling of lower extreme opening part, and slow application of force avoids pressing from both sides garrulous matrix.

The clamping mechanism comprises oppositely arranged sheet-shaped clamping rods 7, hinged positioning plates 10 are arranged on the outer sides of the sheet-shaped clamping rods 7, the hinged positioning plates 10 are hinged with hinged transverse plates 11 through pin shafts, rolling bearings 6 are hinged at the upper ends of the sheet-shaped clamping rods 7, the rolling bearings 6 are in contact connection with the circumferential sides of the pushing blocks 5, the insides of the sheet-shaped clamping rods 7 are concave radians, the sheet-shaped clamping rods 7 clamp plug seedlings through the concave radians, the clamping area is large, the clamping is firm, the pushing blocks 5 move downwards and are inserted between the two rolling bearings 6, the two rolling bearings 6 are gradually far away, the rolling bearings 6 are separated to drive the lower ends of the sheet-shaped clamping rods 7 to be gradually closed, namely the sheet-shaped clamping rods 7 rotate around the pin shafts at the hinged positions of the hinged positioning plates 10 and the hinged transverse plates 11, when the pushing blocks 5 move upwards, the two rolling bearings 6 are gradually close to, the opening at the lower end of the sheet-shaped clamping rod 7 is gradually opened until the opening of the sheet-shaped clamping rod 7 is more than or equal to the width of the plug seedling substrate block, and seedlings freely fall to realize seedling release. The preferred scheme is that the lower end opening of the sheet-shaped clamping rod 7 is larger than the width of the plug seedling substrate block.

The upper end of the sheet clamping rod 7 is provided with a connecting ring 8, the connecting ring 8 is connected with an expansion piece 9, the expansion piece 9 is connected with the sheet clamping rod 7 which is oppositely arranged through the connecting ring 8, in order to prevent the sheet clamping rod 7 from being clamped insecurely, the connecting ring 8 is arranged at the upper end inside the sheet clamping rod 7, the expansion piece 9 is connected between the sheet clamping rods 7 which are oppositely arranged through the connecting ring 8, the expansion piece 9 always exerts pretension force on the sheet clamping rods 7 on the two sides, and a rolling bearing 6 at the upper end of the sheet clamping rod 7 is convenient to cling to the ejector pad 5 when the ejector pad 5 moves upwards.

The extensible member 9 is the extension spring, and extensible member 9 is the elastic component, if extensible member 9 is the extension spring, the size of extension spring is according to actual conditions and use place selection, and the pulling force size of extension spring also can be selected to the specification of extension spring is not only, and extension spring is the helical spring who bears axial tension, and extension spring all generally makes with the circular cross section material. The coils of the extension spring are generally tight and gapless from coil to coil when not under load, and the principle of operation of the extension spring is opposed to that of the compression spring, and this initial tension determines how tightly the extension spring coils in the absence of any load.

The buffer mechanism comprises a buffer support 16, the buffer support 16 is fixed below the support frame 1, a buffer spring 13 is arranged in the buffer support 16, one side of the buffer support 16 is penetrated and connected with a hinged transverse plate 11, one end of the hinged transverse plate 11, which is close to the buffer spring 13, is provided with a limit plate 14, the other end of the hinged transverse plate 11 is hinged with a sheet-shaped clamping rod 7, the buffer spring 13 is placed in the buffer support 16, a pressure spring baffle plate 12 which is matched with the buffer spring 13 for use is arranged in the buffer support 16, the pressure spring baffle plate 12 mainly limits the buffer spring 13 to be always in the buffer support 16 to prevent the buffer spring 13 from popping up, the hinged transverse plate 11 and the limit plate 14 are connected in a T shape, when the hinged transverse plate 11 is extruded by the sheet-shaped clamping rod 7, the limit plate 14 can push the buffer spring 13 to shrink, so that the buffer mechanism has buffer, the speed of the clamping mechanism at the lower end opening for closing and clamping the seedling is slowed down, the force is slowly applied, and the substrate is prevented from being crushed.

The buffer spring 13 is a compression spring which is a hardware fitting formed by a wire into a spiral geometric shape, so that the hardening strengthening operation of the buffer spring is more difficult than that of a planar hardware fitting (such as a stamping part), and the hardening effect of the cross section of the compression spring is strictly controlled, so that the size of the resistance to fatigue fracture of the compression spring after use is fully known; the pressure spring hardening generally adopts the following steps: shot peening and heat treatment hardening.

The cross section of the pushing block 5 is sequentially reduced from top to bottom, the pushing block 5 can be irregular or regular, such as a cone, a frustum, a pyramid, a polygonal cone and the like, and the pushing block 5 is mainly used for pushing the rolling bearing 6, so that the rolling bearing 6 can rotate at the upper end of the sheet-shaped clamping rod 7, and friction is reduced. The rolling bearing 6 is connected with the flaky clamping rod 7 through a shaft, the rolling bearing 6 is sleeved on the shaft, and two ends of the shaft are fixedly connected to the upper end of the flaky clamping rod 7 through welding or other modes, so that the rolling bearing 6 rotates around the shaft.

The push rod 2 is an electric push rod, a pneumatic push rod, a hydraulic oil cylinder or other mechanisms for realizing linear movement, the electric push rod, the pneumatic push rod and the hydraulic oil cylinder are all in the prior art, detailed description is omitted, the mechanisms are not unique, and only the push rod 2 can realize reciprocating linear movement, so that the push rod can be applied to the invention.

The working end of the pushing rod 2 is fixedly connected with a pushing block 5 through a double-end stud 3, the pushing block 5 is fixedly connected with the double-end stud 3, a threaded hole is formed in the upper end of the pushing block 5, the double-end stud 3 is connected with the threaded hole, the threaded hole is also formed in the pushing rod 2, the double-end stud 3 is in threaded connection with the pushing rod 2, and the double-end stud 3 can be considered as the working end of the pushing rod 2.

And locking nuts 4 are arranged at two ends of the stud 3, the locking nuts 4 are respectively arranged at the upper end and the lower end of the stud 3, the number of the locking nuts is two, one locking nut 4 locks the connection between the stud 3 and the ejector block 5, and the other locking nut 4 locks the connection between the stud 3 and the push rod 2. The ejector pad 5 and the push rod 2 are fixedly connected through the stud 3, so that the stroke position of the ejector pad 5 is adjusted, and the opening and closing of the clamping opening at the lower end of the sheet clamping rod 7 are adjusted.

The working process of the invention is as follows: the inside upper end of support frame 1 is equipped with catch bar 2, 2 lower extremes of catch bar are equipped with top ejector pad 5, 5 tops of top ejector pad touch and connect clamping mechanism, the clamping mechanism both sides are equipped with buffer gear, and the articulated transverse plate 11 of buffer gear is articulated in clamping mechanism's 7 outsides of slice clamping bar, clamping mechanism follows buffer gear's articulated transverse plate 11 lateral shifting and rotates around articulated department, and buffer gear cushions clamping mechanism, slows down the speed of clamping mechanism when the closed seedling of clamp gear at lower extreme opening part, and slow application of force, clamping mechanism press from both sides tightly to plug seedling week side, avoid pressing from both sides garrulous matrix. And the direct insertion of the substrate to damage the roots of the plug seedlings is also avoided.

The clamping mechanism comprises oppositely arranged sheet-shaped clamping rods 7, hinged positioning plates 10 are arranged on the outer sides of the sheet-shaped clamping rods 7, the hinged positioning plates 10 are hinged to hinged transverse plates 11 through pin shafts, rolling bearings 6 are connected to the sheet-shaped clamping rods 7 through shafts, specific rolling bearings 6 are sleeved on the shafts, two ends of each shaft are fixedly connected to the upper ends of the sheet-shaped clamping rods 7 through welding or other modes, the rolling bearings 6 rotate around the shafts, the rolling bearings 6 are in contact connection with the peripheral sides of the pushing blocks 5, the sheet-shaped clamping rods 7 are internally provided with sunken radians, the sheet-shaped clamping rods 7 clamp plug seedlings through the sunken radians, the clamping area is large, clamping is firm, the pushing blocks 5 move downwards and are inserted between the two rolling bearings 6, the two rolling bearings 6 are gradually far away, the rolling bearings 6 are separated to drive the lower ends of the sheet-shaped clamping rods 7 to be gradually closed, namely, the sheet-shaped clamping rods 7 horizontally move around the, and simultaneously rotates around the pin shaft at the hinged position. When the pushing block 5 moves upwards, the two rolling bearings 6 are gradually close to each other under the action of the telescopic piece 9 at the upper end of the sheet-shaped clamping rod 7, the opening at the lower end of the sheet-shaped clamping rod 7 is gradually opened until the opening of the sheet-shaped clamping rod 7 is larger than or equal to the width of the plug seedling substrate block, and seedlings freely fall down to realize seedling release. The preferred scheme is that the lower end opening of the sheet-shaped clamping rod 7 is larger than the width of the plug seedling substrate block. The buffer support 16 is fixed below the support frame 1 (see fig. 1 and 4), a buffer spring 13 is arranged in the buffer support 16, one end of the buffer spring 13 is contacted with a fixed pressure spring baffle plate 12, the pressure spring baffle plate 12 mainly limits the buffer spring 13 to be always in the buffer support 16 to prevent the buffer spring 13 from popping out, the other end of the buffer spring 13 is contacted with a limiting plate 14 (connected with a hinged transverse plate 11 in a T shape) which can transversely slide in the buffer support 16, the hinged transverse plate 11 is hinged with a sheet-shaped clamping rod 7 through a pin shaft 11a, when the hinged transverse plate 11 is acted by the force of the sheet-shaped clamping rod 7, the limiting plate 14 integrated with the hinged transverse plate 11 can transversely slide in the buffer support 16 and push the buffer spring 13 to shrink together, so that the buffer mechanism has a buffer function, the buffer mechanism buffers the clamping mechanism and slows down the speed of the clamping mechanism when the seedling is closed at the lower end opening, slowly apply force to avoid crushing the matrix.

Referring to fig. 1, the invention is composed of a hexagon bolt, a stud bolt 3, a pushing block 5, a rolling bearing 6, a telescopic piece 9, a hexagon nut, a round head bolt, a hinge, a shaft pin, a cotter pin, a finger, a buffer support 16, a limiting plate 14, a buffer spring 13, a support frame 1 and a push rod 2.

The support frame 1 is connected with a push rod 2 and the like through bolts, and the working end of the push rod 2 is connected with a pushing block 5 through a stud 3 and locked by a locking nut 4. The top end of the sheet clamping rod 7 is welded with a shaft, the middle position of the shaft is provided with a rolling bearing 6, and the rolling bearing 6 is positioned by the snap spring. The inner sides of the upper parts of the sheet-shaped clamping rods 7 are fixedly provided with connecting rings 8, and the connecting rings 8 at the inner sides of the two sheet-shaped clamping rods 7 are connected with two ends of a telescopic piece 9. The outer side of the upper part of the sheet-shaped clamping rod 7 is provided with a hinged positioning plate 10; the hinged positioning plate 10 is hinged with the hinged transverse plate 11 through a pin shaft, the pin shaft is positioned by a cotter pin, a lug of a pin hole of the hinged transverse plate 11 can transversely slide in a square hole on the right end face of the buffer support 16, the buffer spring 13 is limited in an inner hole of the buffer support 16 by the pressure spring baffle 12, and the buffer support 16 is connected with the pressure spring baffle 12 on the support frame 1 through a nut and a bolt.

When the seedling taking mechanism works, the push rod 2 starts to work, and the working end of the push rod 2 stretches to drive the ejector pad 5 to move up and down; when the pushing block 5 moves downwards, the rolling bearings 6 at the upper ends of the sheet-shaped clamping rods 7 are acted by the force of the pushing block 5, the opening widths of the upper ends of the two sheet-shaped clamping rods 7 are increased, the two sheet-shaped clamping rods 7 rotate around the pin shaft on the middle hinged positioning plate 10, so that the opening widths of the lower ends of the two sheet-shaped clamping rods 7 are decreased, and the lower ends of the two sheet-shaped clamping rods 7 clamp the seedling substrate (the ejector pins are ejected); the operation of clamping the seedling substrate is realized; when the pushing block 5 moves upwards, the opening width of the upper ends of the two sheet-shaped clamping rods 7 is reduced under the action of the telescopic piece 9, so that the opening width of the lower ends of the two sheet-shaped clamping rods 7 is increased, the seedling substrate clamped by the lower ends of the two sheet-shaped clamping rods 7 is loosened, and falls into the seedling cylinder of the transplanter under the action of gravity to complete the operation of grabbing and placing the seedlings.

When the substrate of the seedling is clamped by the two sheet-shaped clamping rods 7, the two sheet-shaped clamping rods 7 are translated to two sides through the hinged positioning plate 10 under the normal pressure of the substrate of the seedling, and the buffer spring 13 is compressed under the stress to buffer the seedling clamping process. When the working end of the push rod 2 retracts, the lower ends of the two sheet-shaped clamping rods 7 can be opened towards two sides under the action of the telescopic piece 9, under the elastic action of the buffer spring 13, the sheet-shaped clamping rods 7 on two sides move inwards through the hinged transverse plate 11 and the hinged positioning plate 10 to return to the initial position, and it is worth noting that the uppermost end of the support frame 1 is also provided with a connecting plate 15 matched with the translational mechanical arm carrying module, the translational mechanical arm carrying module is used for driving the whole device to move up, down, left and right, and aims to drive the plug seedlings to move, the translational mechanical arm carrying module is the prior art and is manufactured by Yuri electromechanical equipment Limited company in Dongguan city, the model is PPU-L-300-ST-G, and detailed description is omitted.

The seedling picking and placing device can push the clamping mechanism to open and close through the pushing block 5, the clamping mechanism is buffered by the buffer mechanism when being opened and closed, the damage to a substrate caused by the fact that the clamping force of the sheet-shaped clamping rod 7 of the clamping mechanism is applied too fast is prevented, the plug seedlings are clamped through the opening and closing of the sheet-shaped clamping rod 7, and the picking and placing of the seedlings are completed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. Where combinations of features are mutually inconsistent or impractical, such combinations should not be considered as being absent and not within the scope of the claimed invention. Also, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the spirit of the principles of the invention.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.

Claims (10)

1. The utility model provides a seedling mechanism is got to automatic transplanter of plug seedling, includes the support frame, its characterized in that: the inside upper end of support frame is equipped with the catch bar, the catch bar lower extreme is equipped with the ejector pad, the ejector pad top touches and connects clamping mechanism, the clamping mechanism both sides are equipped with buffer gear, and the articulated transverse plate of buffer gear is articulated in clamping mechanism's slice clamping bar outside, clamping mechanism follows buffer gear's articulated transverse plate lateral shifting and rotates around articulated department.

2. The seedling taking mechanism of the automatic plug seedling transplanter according to claim 1, characterized in that: the clamping mechanism comprises oppositely arranged sheet clamping rods, hinged positioning plates are arranged on the outer sides of the sheet clamping rods and hinged with the hinged transverse plates through hinge pins, rolling bearings are hinged to the upper ends of the sheet clamping rods and are in contact connection with the peripheral sides of the pushing blocks.

3. The seedling taking mechanism of the automatic plug seedling transplanter according to claim 2, characterized in that: the upper end of the sheet clamping rod is provided with a connecting ring, the connecting ring is connected with the telescopic piece, and the telescopic piece is connected with the sheet clamping rod which is oppositely arranged through the connecting ring.

4. The seedling taking mechanism of the automatic plug seedling transplanter according to claim 3, wherein: the telescopic piece is a tension spring.

5. The seedling taking mechanism of the automatic plug seedling transplanter according to claim 1, characterized in that: buffer gear is including buffering the support, the buffering support is fixed in the support frame below, is equipped with buffer spring in the buffering support, articulated transverse plate is connected in alternate to buffering support one side, the one end that articulated transverse plate is close to buffer spring is equipped with the limiting plate, and articulated slice clamping bar of articulated transverse plate other end.

6. The seedling taking mechanism of the automatic plug seedling transplanter according to claim 5, characterized in that: the buffer spring is a pressure spring.

7. The seedling taking mechanism of the automatic plug seedling transplanter according to claim 1, characterized in that: the cross section of the pushing block is sequentially reduced from top to bottom.

8. The seedling taking mechanism of the automatic plug seedling transplanter according to claim 1, characterized in that: the push rod is an electric push rod, a pneumatic push rod or a hydraulic oil cylinder.

9. The seedling taking mechanism of the automatic plug seedling transplanter according to claim 1, characterized in that: the working end of the push rod is fixedly connected with the ejector pad through a double-end stud.

10. The seedling taking mechanism of the automatic plug seedling transplanter according to claim 2, characterized in that: and locking nuts are arranged at two ends of the double-end stud.

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