CN108551821A - Fruit tree seedling transplanter and seedling clamping and conveying device - Google Patents

Fruit tree seedling transplanter and seedling clamping and conveying device Download PDF

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Publication number
CN108551821A
CN108551821A CN201810007282.6A CN201810007282A CN108551821A CN 108551821 A CN108551821 A CN 108551821A CN 201810007282 A CN201810007282 A CN 201810007282A CN 108551821 A CN108551821 A CN 108551821A
Authority
CN
China
Prior art keywords
nursery stock
support
conveying device
carrier chain
clamped
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810007282.6A
Other languages
Chinese (zh)
Inventor
李建平
杨欣
王鹏飞
钱稷
周娟
刘洪杰
刘伟霄
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Heibei Agricultural University
Original Assignee
Heibei Agricultural University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heibei Agricultural University filed Critical Heibei Agricultural University
Priority to CN201810007282.6A priority Critical patent/CN108551821A/en
Publication of CN108551821A publication Critical patent/CN108551821A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C11/00Transplanting machines
    • A01C11/02Transplanting machines for seedlings
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00Forestry
    • A01G23/02Transplanting, uprooting, felling or delimbing trees
    • A01G23/04Transplanting trees; Devices for grasping the root ball, e.g. stump forceps; Wrappings or packages for transporting trees
    • A01G23/043Transplanting devices for grasping, undercutting or transporting the root ball

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Transplanting Machines (AREA)

Abstract

The invention relates to a nursery stock clamping and conveying device, which comprises: a first bracket having a horizontal section and a first vertical section; the surface of the first conveying chain is provided with triangular teeth, and the first conveying chain is wound on the periphery of the first support; the second support is provided with a second vertical section which corresponds to the first vertical section, and the first vertical section and the second vertical section form a seedling clamping and transporting part; the surface is provided with a second conveying chain with triangular teeth, the second conveying chain is wound on the periphery of the second support, when entering the seedling clamping and transporting part, the first conveying chain and the second conveying chain start to be meshed, a seedling accommodating space is reserved after the first conveying chain and the second conveying chain are meshed, and when leaving the seedling clamping and transporting part, the first conveying chain and the second conveying chain are meshed in a bundled mode. The invention ensures the safe and stable transportation of the nursery stock. The invention also discloses a fruit tree seedling transplanter adopting the seedling clamping and conveying device.

Description

Conveying device is clamped in a kind of fruit nursery stock transplanter and nursery stock
Technical field
The present invention relates to agricultural machinery technological field, more particularly to the fruit nursery stock that is arrived used in the process of a kind of orchard planting Conveying device is clamped in transplanter and nursery stock.
Background technology
Fruit tree seedling typically refers to diameter and is not more than 10mm, and length is not more than the fruit tree seedling of 40mm.As seedling is gradual It grows up, fruit tree seedling, which cannot meet, is grown in the required spacing in the rows in nursery and line-spacing, cultivates the growing environment and sky of fruit tree seedling Between will to the growth of seedling formed limit, therefore after seeds culture become seedling after taken, pick out good fruit It is planted in tree seedling replanting to land for growing field crops.
With the development of science and technology, fruit nursery stock transplanter is gradually applied, usually it is arranged on fruit nursery stock transplanter There are rotary tillage mechanism, ditcher mechanism, nursery stock clamping conveying device, plant setter structure, casing mechanism and press wheel, wherein nursery stock to be clamped The main function of conveying device is to plant setter structure then nursery stock to be discharged to and passed to plant setter structure by nursery stock clamping transport, The final transplanting for realizing nursery stock.
Current nursery stock clamping conveying device is usually conveyer belt composition, and nursery stock transmit process is unstable, seedling often occurs Wood is fallen, or the situation for causing nursery stock impaired because clamping force is excessive occurs.
Therefore, a kind of nursery stock clamping conveying device how is provided, by sending to cultivation seedling device for nursery stock safety and stability The technical issues of being current those skilled in the art's urgent need to resolve.
Invention content
An object of the present invention is to provide a kind of nursery stock clamping conveying device, so as to which nursery stock is safe and stable It send to cultivation seedling device.
It is a further object of the present invention to provide a kind of fruit nursery stock transplanters that conveying device being clamped using above-mentioned nursery stock.
In order to achieve the above objectives, conveying device is clamped in nursery stock provided by the invention, including:
First support, the first support include at least horizontal segment and the first vertical section;
Surface is provided with the first carrier chain of rake tooth, and first carrier chain is around the periphery for being located at the first support On, and the turning position of the first support is both provided with the first sprocket wheel coordinated with first carrier chain, the horizontal segment It constitutes and takes the portion of putting for placing the nursery stock of nursery stock;
Second support, the second support include at least the second vertical section being correspondingly arranged with first vertical section, institute It states the first vertical section and second vertical section constitutes nursery stock clamping Department of Transportation;
Surface is provided with the second carrier chain of rake tooth, and second carrier chain is around the periphery for being located at the second support On, and the turning position of the second support is both provided with the second sprocket wheel coordinated with second carrier chain, described in entrance When Department of Transportation is clamped in nursery stock, first carrier chain starts to be engaged with second carrier chain, and there are nursery stock appearances after being engaged Between emptying, when leaving the nursery stock clamping Department of Transportation, first carrier chain and the second conveying end of chain (EOC) occlusion, and release Put the nursery stock in the nursery stock accommodating space.
Preferably, the first support is triangular in shape, and the second support is rectangular.
Preferably, the first support and the second support are the holder by plate soldering and inner hollow.
Preferably, the bottom of the first support and the second support is for being fixed with the rack of nursery stock transplanting machine Pedestal.
Preferably, the inside of the first support and the second support is also welded with the support for enhancing stability Bar.
Preferably, first sprocket wheel includes three, and second sprocket wheel includes two, one of them described first sprocket wheel And/or one of them described second sprocket wheel is drive sprocket.
Preferably, at least one first sprocket wheel is adjustable first tensioning wheel of rotating shaft position;At least one described Two sprocket wheels are adjustable second tensioning wheel of rotating shaft position.
Preferably, it is fixedly installed the first supporting block in the first support, first is offered in first supporting block Threaded hole, the first adjustment bolt and the bearing block of first tensioning wheel being arranged in first threaded hole offset;
It is fixedly installed the second supporting block in the second support, the second threaded hole is offered in second supporting block, The second adjustment bolt and the bearing block of second tensioning wheel being arranged in second threaded hole offset.
Preferably, also with according to planting, pitch requirements are spaced to put seedling marker bit on the horizontal segment.
Disclosed in this invention fruit nursery stock transplanter, including conveying device is clamped in nursery stock, wherein nursery stock clamping Conveying device is that conveying device is clamped in the nursery stock disclosed in above-mentioned any one.
Disclosed in this invention nursery stock conveying device is clamped, be arranged with the first carrier chain on the periphery of first support, the The second carrier chain is arranged on the periphery of two holders, two carrier chains rotate synchronously, and the horizontal segment of first support is constituted for putting The nursery stock for setting nursery stock takes the portion of putting, and the first vertical section and the second vertical section constitute nursery stock clamping Department of Transportation, when entering the position, First carrier chain and the second carrier chain start to be mutually twisted, and after occlusion, the tooth top of rake tooth and tooth slot position there are Nursery stock accommodating space, when leaving nursery stock clamping Department of Transportation, the first carrier chain and the second conveying end of chain (EOC) occlusion, and discharge nursery stock Nursery stock in accommodating space.
In actual use, it takes at the portion of putting, nursery stock is placed in the groove between two neighboring rake tooth, seedling in nursery stock Wood will follow the first carrier chain towards nursery stock clamping Department of Transportation movement, enter nursery stock be clamped Department of Transportation when, the first carrier chain and Rake tooth on second carrier chain is mutually twisted, and in nursery stock insertion nursery stock accommodating space and is clamped, with Anti-fall;Leaving seedling When wood clamp holds Department of Transportation, the first carrier chain and the second conveying end of chain (EOC) occlusion, and discharge the nursery stock in nursery stock accommodating space, nursery stock It enters and plants in seedling device.
It can be seen that disclosed in this invention nursery stock clamping conveying device not only facilitate and place nursery stock, but also in nursery stock The nursery stock accommodating cavity being adapted to nursery stock is formd by the occlusion of rake tooth in transmission process, this is it is possible to prevente effectively from nursery stock falls It falls, ensure that the stability in nursery stock transmission process, while nursery stock accommodating cavity also can effectively avoid and be spent to the chucking power of nursery stock Greatly, therefore nursery stock clamping conveying device also ensures the safety in nursery stock transmission process.
Description of the drawings
Fig. 1 is the structural schematic diagram of the first support disclosed in the embodiment of the present invention;
Fig. 2 is the structural schematic diagram of the second support disclosed in the embodiment of the present invention;
Fig. 3 is the overall structure diagram of the nursery stock clamping conveying device disclosed in the embodiment of the present invention;
Fig. 4 is the schematic elevation view of Fig. 3.
Wherein, 11 be horizontal segment, and 12 be the first vertical section, and 13 be the first sprocket wheel, and 14 be the first supporting block, and 15 adjust for first Whole bolt, 16 be the first carrier chain, and 17 is put seedling marker bit, and 23 be the second sprocket wheel, and 24 be the second supporting block, and 25 be second adjustment Bolt, 26 be the second carrier chain, and 3 be plate, and 4 be supporting rod, and 5 be pedestal.
Specific implementation mode
One of core of the invention is to provide a kind of nursery stock clamping conveying device, so as to which nursery stock is safe and stable It send to cultivation seedling device.
Another core of the present invention is to provide a kind of fruit nursery stock transplanter that conveying device being clamped using above-mentioned nursery stock.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description The present invention is described in further detail.
Please refer to Fig.1 to Fig. 4, disclosed in this invention nursery stock be clamped conveying device, including first support, first conveying Chain 16, second support and the second carrier chain 26, wherein first support includes at least horizontal segment 11 and the first vertical section 12, the It is provided with rake tooth on the surface of one carrier chain 16, the first carrier chain 16 is around the periphery for being located at first support, and first support Turning position be both provided with 16 matched first sprocket wheel 13 of the first carrier chain, horizontal segment 11 constitute for placing nursery stock Nursery stock takes the portion of putting;
Second support includes at least the second vertical section being correspondingly arranged with the first vertical section 12, the first vertical section 12 and second Vertical section collectively forms nursery stock clamping Department of Transportation, and rake tooth, the first carrier chain are again provided on the surface of the second carrier chain 26 16 second carrier chains 26 synchronize opposite rotation, and the second carrier chain 26 is around the periphery for being located at second support, and second support turns Angular position is both provided with the second sprocket wheel 23 coordinated with the second carrier chain 26, when entering nursery stock clamping delivery section, the first conveying Chain 16 and the second carrier chain 26 start to be engaged (engagement), and after the first carrier chain 16 and the occlusion of the second carrier chain 26, triangle There are the nursery stock accommodating spaces being embedded in for nursery stock with root position for the tooth top of tooth;When leaving nursery stock clamping Department of Transportation, first is defeated It send chain 16 and the second carrier chain 26 to terminate occlusion, and discharges the nursery stock in nursery stock accommodating space.
Referring to FIG. 4, end is that the first carrier chain 16 and the second carrier chain 26 enter nursery stock and delivery section are clamped in fig. 4, the upper, Lower end is that the first carrier chain 16 and the second carrier chain 26 leave nursery stock and delivery section are clamped, and the lower end of delivery section is clamped close to cultivation in nursery stock Seedling device is arranged, and after nursery stock is released in the position, will enter and plant seedling device.
In actual use, it is taken at the portion of putting in nursery stock, by the way that nursery stock is manually or mechanically placed on two neighboring rake tooth Between groove in, nursery stock will follow the first carrier chain 16 towards nursery stock clamping Department of Transportation movement, enter nursery stock clamping transport When portion, the rake tooth on the first carrier chain 16 and the second carrier chain 26 is mutually twisted, and nursery stock is embedded in nursery stock accommodating space and quilt Clamping, with Anti-fall;When leaving nursery stock clamping Department of Transportation, the first carrier chain 16 and the second carrier chain 26 terminate occlusion, and release The nursery stock in nursery stock accommodating space is put, nursery stock, which enters, plants in seedling device.
As can be seen that the above-mentioned nursery stock clamping conveying device applied disclosed in example, which not only facilitates, places nursery stock, but also in seedling In the wooden transmission process nursery stock accommodating cavity being adapted to nursery stock is formd by the occlusion of rake tooth, this is it is possible to prevente effectively from nursery stock It falls, ensure that the stability in nursery stock transmission process, while nursery stock accommodating cavity also can effectively avoid the clamping force to nursery stock It is excessive, therefore nursery stock clamping conveying device also ensures the safety in nursery stock transmission process.
It will be appreciated to those of skill in the art that the shape of first support and second support can there are many selection, examples If two holders can be rectangle or triangle, in the present embodiment, first support is triangular in shape, and second support is rectangular, such as Shown in Fig. 1 to Fig. 4.
First support includes three the first sprocket wheels 13 as a result, and the first sprocket wheel 13 is separately positioned on three of first support Corner part, second support include two the second sprocket wheels 23, and two the second sprocket wheels 23 are separately positioned on the both ends of second support, First sprocket wheel 13 and the second sprocket wheel 23 are mounted on by bearing block in first support and second support respectively.
Preferably, first support and second support are formed by 3 soldering of plate, the first support after soldering and second The inner hollow of frame as shown in Figures 1 and 2, can also be in order to further increase the stability of first support and second support The interior welds supporting rod 4 of first support and second support, as shown in Figures 1 and 2.
Since first support and second support are both needed on the mainframe for being fixed at fruit nursery stock transplanter, in order to Ensure mounting stability on mainframe of first support and second support, the bottom of first support and second support is also and welding There is pedestal 5, and be provided with mounting hole on pedestal 5, mounting hole preferably uses strip hole, to facilitate first support and second Frame adjusts installation site.
In view of the first carrier chain 16 and the second carrier chain 26 are mutually twisted, as long as therefore there are one the first sprocket wheels 13 or one A second sprocket wheel 23 is the operating that drive sprocket can ensure the first carrier chain 16 and the second carrier chain 26;It is of course also possible to one A first sprocket wheel 13 and first the second sprocket wheel 23 are driving wheel, as long as ensureing that the linear velocity of the two rotation is equal.
Further, in first support, at least one first sprocket wheel 13 is adjustable first tensioning wheel of rotating shaft position, In second support, at least one second sprocket wheel 23 is adjustable second tensioning wheel of rotating shaft position;It please refers to Fig.1 and Fig. 2, first It is fixedly installed the first supporting block 14 on holder, the first threaded hole is offered in the first supporting block 14, is arranged in first spiral shell The first adjustment bolt 15 and the bearing block of first tensioning wheel in pit offset, by rotating the first adjustment bolt 15 The movement for realizing the first tensioning wheel, to make the first carrier chain 16 keep suitable tightness;It is fixedly installed in second support There is the second supporting block 24, the second threaded hole is offered in the second supporting block 24, the second adjustment spiral shell being arranged in the second threaded hole Bolt 25 and the bearing block of the second tensioning wheel offset, and the movement of the second tensioning wheel can be realized by rotating second adjustment bolt 25, To make the second carrier chain 26 keep suitable tightness.
It when using artificial seedling setting mode, needs to ensure that the distance between two neighboring nursery stock is equal, to ensure that nursery stock has There is suitable spacing in the rows, be also provided on horizontal segment 11 in the present embodiment put seedling marker bit 17 thus, putting seedling marker bit 17 includes It is multiple, it is multiple to put the setting of the interval of seedling marker bit 17, and both arbitrary spacing is consistent with the spacing required by seedling growth.It is putting When setting nursery stock, if one of them, which is put on seedling marker bit 17, nursery stock, placement nursery stock at seedling marker bit 17 is put in adjacent thereto .
In addition to this, a kind of fruit nursery stock transplanter, including rotary tillage mechanism, furrowing blade, nursery stock are also disclosed in the present invention Conveying device, plant setter structure, covering blade and press wheel is clamped, wherein it is above-mentioned any one implementation that conveying device, which is clamped, in nursery stock Conveying device is clamped in nursery stock disclosed in example.
It is clamped conveying device as a result of above-mentioned nursery stock, therefore to have both the clamping of above-mentioned nursery stock defeated for the fruit nursery stock transplanter It send device corresponding technological merit, this is no longer repeated herein.
Fruit nursery stock transplanter provided by the present invention and nursery stock clamping conveying device are described in detail above.This Specific case is applied in text, and principle and implementation of the present invention are described, the explanation of above example is only intended to It facilitates the understanding of the method and its core concept of the invention.It should be pointed out that for those skilled in the art, Without departing from the principles of the invention, can be with several improvements and modifications are made to the present invention, these improvement and modification are also fallen Enter in the protection domain of the claims in the present invention.

Claims (10)

1. conveying device is clamped in a kind of nursery stock, which is characterized in that including:
First support, the first support include at least horizontal segment (11) and the first vertical section (12);
Surface is provided with the first carrier chain (16) of rake tooth, and first carrier chain (16) is around being located at the outer of the first support Zhou Shang, and the turning position of the first support is both provided with the first sprocket wheel (13) coordinated with first carrier chain (16), The horizontal segment (11) is constituted takes the portion of putting for placing the nursery stock of nursery stock;
Second support, the second support include at least the second vertical section being correspondingly arranged with first vertical section (12), institute It states the first vertical section (12) and second vertical section constitutes nursery stock clamping Department of Transportation;
Surface is provided with the second carrier chain (26) of rake tooth, and second carrier chain (26) is around being located at the outer of the second support Zhou Shang, and the turning position of the second support is both provided with the second sprocket wheel (23) coordinated with second carrier chain (26), When entering nursery stock clamping Department of Transportation, first carrier chain (16) starts to be engaged with second carrier chain (26), and There are nursery stock accommodating space after occlusion, when leaving the nursery stock Department of Transportation being clamped, first carrier chain (16) and described Second carrier chain (26) terminates occlusion, and discharges the nursery stock in the nursery stock accommodating space.
2. conveying device is clamped in nursery stock according to claim 1, which is characterized in that the first support is triangular in shape, institute It is rectangular to state second support.
3. conveying device is clamped in nursery stock according to claim 1, which is characterized in that the first support and second described Frame is the holder by plate (3) soldering and inner hollow.
4. conveying device is clamped in nursery stock according to claim 3, which is characterized in that the first support and second described The bottom of frame be for the fixed pedestal of the rack of nursery stock transplanting machine (5).
5. conveying device is clamped in nursery stock according to claim 3, which is characterized in that the first support and second described The inside of frame is also welded with the supporting rod (4) for enhancing stability.
6. conveying device is clamped in nursery stock according to claim 2, which is characterized in that first sprocket wheel (13) includes three A, second sprocket wheel (23) includes two, one of them described first sprocket wheel (13) and/or one of them described second sprocket wheel (23) it is drive sprocket.
7. conveying device is clamped in nursery stock according to claim 6, which is characterized in that at least one first sprocket wheel (13) For adjustable first tensioning wheel of rotating shaft position;At least one second sprocket wheel (23) is adjustable second tensioning of rotating shaft position Wheel.
8. conveying device is clamped in nursery stock according to claim 6, which is characterized in that be fixedly installed in the first support First supporting block (14) offers the first threaded hole on first supporting block (14), is arranged in first threaded hole The first adjustment bolt (15) and the bearing block of first tensioning wheel offset;
It is fixedly installed the second supporting block (24) in the second support, the second screw thread is offered on second supporting block (24) Hole, the second adjustment bolt (25) and the bearing block of second tensioning wheel being arranged in second threaded hole offset.
9. conveying device is clamped in nursery stock according to claim 1, which is characterized in that also have root on the horizontal segment (11) According to planting, pitch requirements are spaced to put seedling marker bit (17).
10. conveying device is clamped in a kind of fruit nursery stock transplanter, including nursery stock, which is characterized in that the nursery stock clamping conveying dress It is set to nursery stock clamping conveying device as described in any one of claims 1-9.
CN201810007282.6A 2018-01-04 2018-01-04 Fruit tree seedling transplanter and seedling clamping and conveying device Pending CN108551821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810007282.6A CN108551821A (en) 2018-01-04 2018-01-04 Fruit tree seedling transplanter and seedling clamping and conveying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810007282.6A CN108551821A (en) 2018-01-04 2018-01-04 Fruit tree seedling transplanter and seedling clamping and conveying device

Publications (1)

Publication Number Publication Date
CN108551821A true CN108551821A (en) 2018-09-21

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CN201810007282.6A Pending CN108551821A (en) 2018-01-04 2018-01-04 Fruit tree seedling transplanter and seedling clamping and conveying device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109220116A (en) * 2018-11-12 2019-01-18 黄淮学院 A kind of full-automatic sweet potato seedlings transplanter
CN114902884A (en) * 2022-06-02 2022-08-16 安徽德昌苗木有限公司 Tea seedling cuttage device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124171A (en) * 1982-08-03 1984-02-15 Tickhill Engineering Co Limite Conveying means with clamping devices
JP2004236524A (en) * 2003-02-04 2004-08-26 Iseki & Co Ltd Seedling transplanter
CN201345818Y (en) * 2008-11-21 2009-11-18 中国农业大学 Planting device for transplanter of scallion seedlings
CN104472312A (en) * 2014-12-15 2015-04-01 湖北工业大学 Plantlet transplanting method and plantlet transplanting machine thereof
CN204350605U (en) * 2014-12-12 2015-05-27 湖南农业大学 Plug seedling rice shoot conveying seedling-protection device
CN204888225U (en) * 2015-09-06 2015-12-23 黑龙江北大荒众荣农机有限公司 Sapling transplanter
CN207885181U (en) * 2018-01-04 2018-09-21 河北农业大学 Fruit tree seedling transplanter and seedling clamping and conveying device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124171A (en) * 1982-08-03 1984-02-15 Tickhill Engineering Co Limite Conveying means with clamping devices
JP2004236524A (en) * 2003-02-04 2004-08-26 Iseki & Co Ltd Seedling transplanter
CN201345818Y (en) * 2008-11-21 2009-11-18 中国农业大学 Planting device for transplanter of scallion seedlings
CN204350605U (en) * 2014-12-12 2015-05-27 湖南农业大学 Plug seedling rice shoot conveying seedling-protection device
CN104472312A (en) * 2014-12-15 2015-04-01 湖北工业大学 Plantlet transplanting method and plantlet transplanting machine thereof
CN204888225U (en) * 2015-09-06 2015-12-23 黑龙江北大荒众荣农机有限公司 Sapling transplanter
CN207885181U (en) * 2018-01-04 2018-09-21 河北农业大学 Fruit tree seedling transplanter and seedling clamping and conveying device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109220116A (en) * 2018-11-12 2019-01-18 黄淮学院 A kind of full-automatic sweet potato seedlings transplanter
CN114902884A (en) * 2022-06-02 2022-08-16 安徽德昌苗木有限公司 Tea seedling cuttage device

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Application publication date: 20180921