CN110337873B - Tray warehouse for plug seedling transplanting and using method and production line thereof - Google Patents

Abstract

The invention discloses a tray warehouse for plug seedling transplantation and a using method and a production line thereof, and belongs to the field of seedling transplantation. The tray warehouse comprises a tray warehouse rack, wherein a tray device, a separating device and a tray storage rack are installed on the tray warehouse rack. It has a plurality of spaces of depositing the tray, and the stability that the tray was put is high, can autosegregation tray and once only carry a plurality of trays to the equipment of follow-up production line, improves the transplanting efficiency of seedling. The use method adopts the tray warehouse, so that the transplanting efficiency of the production line is improved. The production line adopts above-mentioned tray storehouse to deposit the tray that is used for transplanting seedlings, has improved the automation effect of whole production line, and transplanting seedlings efficiency improves greatly.

Description

Tray warehouse for plug seedling transplanting and using method and production line thereof

Technical Field

The invention belongs to the field of seedling transplantation, and particularly relates to a tray warehouse for plug seedling transplantation, and a use method and a production line thereof.

Background

At present, transplanting operation is one of operation processes of a seedling production system, and the purpose of transplanting is to ensure that seedlings have enough growth space, and transplanting the seedlings from a high-density plug tray to a low-density plug tray or a low-density flowerpot so as to ensure further growth of the seedlings. The transplanting operation is generally carried out in a greenhouse, and the temperature and the humidity in the greenhouse are high, the operation environment is relatively severe, and the labor intensity is high. The method improves the automation degree of the transplanting operation by advanced production means such as mechanization, automation and the like, and is an effective solution for enlarging the greenhouse cultivation scale and improving the production efficiency. However, in the existing plug seedling transplanting production line, the plug seedling transplanting is generally improved, and no efficient, perfect and accurate device or measure is provided for storing and conveying trays in plug seedlings.

For example, the Chinese patent application number is: CN201910062990.4, published date: patent literature of 2019, 4 and 12 discloses a potted plant transplanting production line, which comprises seedling raising tray conveying devices and flowerpot conveying devices which are arranged side by side, wherein a portal frame is installed above the seedling raising tray conveying devices and the flowerpot conveying devices in the width direction, Z-axis modules which are vertically arranged are installed on two sides of the portal frame, Y-axis modules which are transversely arranged are installed between the Z-axis modules on the two sides, and grabbing and planting mechanisms which are transversely displaced along the Y-axis modules and used for planting potted seedlings into flowerpots are installed on the Y-axis modules. The automatic transplanting device realizes the automatic transplanting of the seedling raising tray, effectively improves the production efficiency and improves the transplanting quality. However, the production line mainly aims at the automatic transplanting of plug seedlings, and corresponding devices and measures are not adopted for storing the flowerpot serving as a transplanting main body, so that the flowerpot needs to be transported to a conveying belt and then placed to a corresponding position, time and energy are consumed, the transplanting efficiency of the plug seedlings is greatly influenced, and the precision cannot be guaranteed.

In the prior art, there are also tray magazines for storing trays. For example, the Chinese patent application number is: CN201010293381.9, published date: the patent document 4/18/2012 discloses an automatic tray warehouse, which comprises a frame, wherein a lifting mechanism is arranged in the frame, a tray is arranged on the lifting mechanism, separating devices are arranged on two sides of the frame, a conveying device is arranged on one side of the lifting mechanism, and a control system for adjusting the actions of the lifting mechanism, the separating devices and the conveying device is further arranged on the frame. The invention realizes automatic storage, sub-packaging and conveying of the tray. However, on one hand, the method is not special equipment for transplanting the plug seedlings, and when the method is applied to a plug seedling production line, a plurality of problems are necessarily caused, such as the stability of the placement of the tray, the problem of the matching connection between the tray warehouse and the subsequent equipment, how to perfectly correspond to the position of the subsequent transplanter during the transportation from the rails on both sides, and the like, on the other hand, the tray warehouse has low efficiency of storing and conveying the tray, it also mentions in the specification that the number of the trays stored and conveyed at a time is 8, which results in poor efficiency, cannot meet the working requirements in actual production, and it is mentioned here that the trays are placed on the pallet, if the number of the placed trays is increased, a plurality of trays need to be stacked together, without the fixing means, this is not possible, and poor stability of the trays stacked to a certain height directly results in the failure of the subsequent transplanting work.

Disclosure of Invention

1. Problems to be solved

Aiming at the problem that the transplanting efficiency is affected because no special tray for storing and separating a transplanting main body exists in the existing production line for transplanting plug seedlings, the invention provides a plug seedling transplanting tray warehouse which is provided with a plurality of spaces for storing trays, has high stability for placing the trays, can automatically separate the trays and convey the trays to equipment of a subsequent production line at one time, and improves the transplanting efficiency of seedlings.

The invention also provides a using method of the tray warehouse for plug seedling transplantation, which can well store a plurality of trays at one time and convey the trays to subsequent equipment of a production line, so that the transplanting efficiency of seedlings is improved.

The invention also provides a plug seedling transplanting production line, and the tray for transplanting seedlings is stored in the plug seedling transplanting tray stock, so that the automation effect of the whole production line is improved, and the seedling transplanting efficiency is greatly improved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A tray warehouse for transplanting plug seedlings comprises a tray warehouse rack, wherein a tray device, a separating device and a tray storage rack are arranged on the tray warehouse rack,

the tray device comprises a bracket and a bracket lifting mechanism; the tray is arranged on the tray warehouse rack, and a plurality of tray supporting grooves are formed in the tray warehouse rack along the length direction of the tray warehouse rack; the bracket lifting mechanism is arranged on the bracket warehouse rack below the bracket and is used for controlling the bracket to lift;

the separation device comprises a shifting fork mounting frame arranged on the tray warehouse rack, and a shifting fork mechanism is arranged on the shifting fork mounting frame; the shifting fork mechanism comprises a shifting fork, a sliding block I, a sliding rail I and a shifting fork cylinder; the sliding rail I is arranged on the shifting fork mounting frame along the width direction of the tray warehouse rack, the sliding block I is arranged on the sliding rail I, and the shifting fork is arranged on the sliding block I; the shifting fork cylinder is arranged on the shifting fork mounting frame and drives the sliding block I to move on the sliding rail I;

the tray storage rack comprises a fixed rack arranged above the tray warehouse rack, and a plurality of tray separation grooves are formed in the fixed rack along the length direction of the tray warehouse rack; the tray separation grooves and the tray support grooves are the same in number and are arranged above the tray support grooves.

Further, the bracket comprises a pair of strip frames symmetrically arranged along the length direction of the tray library rack, a plurality of transverse frames are mounted on the strip frames along the length direction of the strip frames, and tray supporting grooves are formed between the transverse frames.

Furthermore, the tray device also comprises a pair of bracket guide mechanisms symmetrically arranged at two ends of the bracket; the bracket guide mechanism comprises a guide frame, a bracket guide rod and a guide plate; the guide frame is installed on the tray warehouse rack, the bracket guide rod is in a vertical state and penetrates through the guide plate, and the pair of strip frames are fixedly installed on the guide plate.

Furthermore, the shifting fork mechanism is provided with a plurality of groups of shifting forks, sliding blocks I and sliding rails I; a plurality of the sliding blocks I are all installed at the lower end of a sliding block connecting plate, a shifting fork push plate is fixedly installed on the sliding block connecting plate, and the telescopic end of the shifting fork cylinder is connected with the shifting fork push plate.

Furthermore, shielding plates are mounted on the upper side and the outer side of the shifting fork mounting frame of the shifting fork mechanism.

Further, the two separating devices are symmetrically arranged on two sides of the tray warehouse rack.

Furthermore, a universal wheel I and a foot cup I are arranged below the tray warehouse rack.

Furthermore, a pair of storage rack fixing plates are symmetrically installed at two ends of the fixing rack, and a pair of fixing parts matched with the storage rack fixing plates are symmetrically installed at two ends of the tray warehouse rack.

The use method of the tray library for plug seedling transplantation comprises the following steps:

firstly, placing trays on the tray supporting grooves to enable the trays to be uniformly filled in the tray separation grooves;

secondly, the bracket lifting mechanism works to lift the bracket, so that the upper end of the tray at the bottommost layer on the tray supporting groove is flush with the shifting fork;

thirdly, the shifting fork cylinder works to push the shifting fork to extend to the upper end of the tray at the bottommost layer, so as to support the tray above, and separate the tray at the bottommost layer from the rest trays;

fourthly, the bracket lifting mechanism works to control the bracket to descend, the tray at the bottommost layer is conveyed to a tray conveying device in the transfer table, and the tray conveying device conveys the tray at the bottommost layer away;

fifthly, the bracket lifting mechanism works to lift the bracket, so that the tray supporting groove supports the tray supported by the shifting fork, and then the shifting fork cylinder works to withdraw the shifting fork;

sixthly, repeating the steps from one step to five until the number of the trays in the tray separation groove is not enough, and adding the trays.

10. The utility model provides a plug seedling transplants production line, includes tray storehouse, switching platform, transplanter and the cultivation platform that connects gradually, the tray storehouse adopts above-mentioned tray storehouse for plug seedling transplantation.

3. Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

(1) the tray warehouse for transplanting the plug seedlings solves the problem that no special tray warehouse for transplanting the plug seedlings exists in the prior art, can efficiently and quickly separate and convey the trays through the cooperation of the tray device and the separating device, can place the trays on the tray supporting grooves and fill the tray partition grooves, can store and separate the trays at one time through arranging the partition grooves and the supporting grooves, and greatly improves the automation degree and the working efficiency of plug seedling transplanting work;

(2) according to the tray warehouse for transplanting the plug seedlings, the brackets are arranged on the bracket guide mechanisms at the two ends of the rack of the tray warehouse, so that the bracket lifting mechanism can accurately drive the brackets to lift in the vertical direction, the stacked trays are prevented from toppling due to the inclination of the brackets, and the stability of the trays during storage and working is improved;

(3) according to the tray warehouse for transplanting the plug seedlings, the fork pulling mechanism is characterized in that the plurality of sliders I and the forks are connected through the slider connecting plate, so that the plurality of forks can be driven to work only by one fork pulling cylinder on one hand, and the plurality of forks can be ensured to be in a synchronous telescopic state on the other hand, and therefore the stability and the accuracy are improved when the trays are separated and supported;

(4) according to the tray warehouse for transplanting the plug seedlings, the shielding plates are arranged on the upper side and the outer side of the fork pulling mechanism, so that external sundries or dust can be prevented from entering the fork pulling mechanism during working, the normal working of the fork pulling mechanism is prevented from being influenced, and the working precision of the fork pulling mechanism is ensured;

(5) according to the tray library for plug seedling transplanting, the universal wheel I and the foot cup I are arranged below the tray library frame, the convenience of equipment installation or equipment installation to a production line is improved through the universal wheel I, and the stability of the equipment during working is enhanced through the foot cup I;

(6) the use method of the tray warehouse for plug seedling transplantation adopts the tray warehouse for plug seedling transplantation to store, automatically separate and convey trays during plug seedling transplantation, and greatly improves the automation degree and working efficiency of plug seedling transplantation;

(7) according to the plug seedling transplanting production line, the plug seedling transplanting tray warehouse is used as tray storage equipment in the production line, a plurality of trays can be stored and automatically separated at one time, the automation degree of plug seedling transplanting is greatly improved, plug seedling transplanting can be carried out by workers only needing to regularly place equipment in the tray warehouse, and the plug seedling transplanting efficiency is effectively improved.

Drawings

FIG. 1 is a structural diagram of a plug seedling transplanting production line;

FIG. 2 is an overall configuration view of the tray magazine;

FIG. 3 is a view of the structure and installation of the tray apparatus;

FIG. 4 is a schematic view of the mounting of the fork mechanism;

FIG. 5 is a detailed structure diagram of the fork pulling mechanism;

FIG. 6 is a schematic structural view of a carriage guide mechanism;

FIG. 7 is a schematic view of the structure of the tray storage rack;

FIG. 8 is a schematic structural diagram of the docking station;

FIG. 9 is a detailed configuration view of the tray conveying apparatus;

FIG. 10 is an isometric view of a tray restraining device;

FIG. 11 is a side view of the tray restraint;

FIG. 12 is a schematic structural view of the transplanter;

FIG. 13 is a schematic structural view of a transplanting machine frame;

FIG. 14 is a schematic view of the structure of the seedling conveying line;

FIG. 15 is a schematic view of the overall construction of the hand grip;

FIG. 16 is a schematic view of the gripper without the gripping jaws;

FIG. 17 is a schematic view of the structure of a culture table;

in the figure: 1. a tray magazine; 110. a tray magazine rack; 111. a universal wheel I; 112. a foot cup I; 120. a tray device; 121. a bracket; 1211. a tray support groove; 1212. a strip frame; 1213. a transverse frame; 122. a carriage lifting mechanism; 123. a carriage guide mechanism; 1231. a guide frame; 1232. a guide plate; 1233. a bracket guide bar; 130. a separation device; 131. a shifting fork mounting rack; 132. a fork pulling mechanism; 1321. shifting a fork; 1322. a slide block I; 1323. a slide rail I; 1324. a fork pulling cylinder; 1325. a slider connecting plate; 1326. a shifting fork push plate; 133. a mask plate; 140. a tray storage rack; 141. a fixed mount; 142. a tray separation groove; 143. a storage rack fixing plate;

2. a transfer station; 210. a transfer rack; 211. a tray conveying trough; 212. a universal wheel II; 213. a foot cup II; 220. a tray conveying device; 221. a slide block II; 222. a slide rail II; 223. the tray is connected with the cylinder; 224. a tray receiving plate; 225. a tray conveying cylinder; 226. conveying the connecting plate; 230. a tray limiting device; 231. mounting a limiting device; 232. a slide rail III; 233. a slide block III; 234. a limiting plate connecting plate; 235. a limiting plate; 236. a limiting cylinder; 237. a slide rail IV; 238. a slide block IV;

3. a transplanter; 310. a transplanting frame; 311. a universal wheel III; 312. a foot cup III; 320. a seedling conveying line; 321. a blocking mechanism; 3211. a blocking cylinder; 3212. seedling tray baffle plates; 322. a seedling tray positioning frame; 330. a gripping device; 331. a robot; 3311. a support; 3312. a connecting arm; 3313. a gripper mounting arm; 332. a gripper; 3321. the gripper connecting plate; 3322. A clamping jaw cylinder; 3323. a clamping jaw; 3324. a distance adjusting cylinder; 3325. a clamping jaw connecting plate; 33251. a limiting block I; 33252. a limiting block II; 33253. a limiting block III; 3326. a slide block V; 3327. a slide rail V; 3328. a spring seat; 3329. a spring shaft;

4. a culture platform.

Detailed Description

The invention is further described with reference to specific embodiments and the accompanying drawings.

Example 1

As shown in fig. 2, a tray magazine for plug seedling transplantation is provided at the beginning of a plug seedling transplantation production line, and is used for storing and automatically separating trays, and after the separated trays are sent to a subsequent conveying device, the trays are sent to a transplanter 3 for seedling transplantation. Which includes a tray magazine housing 110, and tray devices 120, a separating device 130, and a tray storage rack 140 mounted on the tray magazine housing 110, a detailed description is given below of the detailed structure and operation of each device of the tray magazine.

As shown in fig. 3, the structure of the tray magazine frame 110 is similar to a rectangular parallelepiped frame, and mainly serves as a mounting body for the rest of the tray magazine. The lower end of the tray warehouse is provided with universal wheels I111 and foot cups I112, the number of the universal wheels I111 and the number of the foot cups I112 can be selected according to the actual situation, in the embodiment, the number of the universal wheels I111 and the number of the foot cups I112 are four, and the universal wheels I111 and the foot cups I112 are respectively arranged at four supporting corners of the tray warehouse rack 110. Wherein, universal wheel I111 makes the removal in tray storehouse more convenient, has increased and has installing the tray storehouse, or the convenience when installing the tray storehouse to the production line, and foot cup I112 has then strengthened the stability of tray storehouse during operation, prevents that the tray storehouse from rocking.

The tray device 120 includes a carriage 121 and a carriage lifting mechanism 122. As shown in fig. 3, the bracket 121 includes a pair of strip frames 1212 symmetrically disposed along the length direction of the tray magazine rack 110, a plurality of transverse frames 1213 are mounted on the pair of strip frames 1212 along the length direction of the strip frames 1212, tray support slots 1211 are formed between the transverse frames 1213, the number of the tray support slots 1211 can be selected according to the actual production condition and the structural parameters of the subsequent transfer station 2 and the transplanter 3, and in this embodiment, the number of the tray support slots 1211 is 6. The carriage lifting mechanism 122 is installed at a lower end of the carriage 121, and is used for lifting the entire carriage. In this embodiment, the tray lifting mechanism 122 is a hydraulic cylinder or an air cylinder, and is vertically installed on the tray magazine rack 110 below the tray 121, and the telescopic end is connected to the strip rack 1212. In order to ensure the stability of the lifting, the carriage lifting mechanisms 122 of the present embodiment have four, which are respectively disposed at the front and rear ends of the two strip frames 1212.

As shown in fig. 6, in addition, in order to improve the direction accuracy of the lifting of the carrier 121, i.e., to keep the carrier 121 lifted in the vertical direction, and to prevent the tray on the carrier 121 from tipping or the relative position deviation from the separating apparatus 130, the present embodiment is provided with a pair of carrier guide mechanisms 123 including a guide frame 1231, a carrier guide rod 1233, and a guide plate 1233 symmetrically at both ends of the carrier 121. The guide frame 1231 is attached to the tray magazine frame 110, and serves as an attachment main body of the guide plate 1233 and the tray guide rod 1233. The guide plate 1233 is horizontally disposed on the guide frame 1231, the bracket guide rod 1233 is vertically installed on the guide frame 1231 and passes through the guide plate 1232, and the guide plate 1232 can move up and down along the bracket guide rod 1233. During installation, the front and rear ends of the pair of strip frames 1212 are respectively fixedly installed on the guide plates 1232 at the two ends of the tray magazine frame 110. Therefore, the bracket lifting mechanism 122 can accurately drive the bracket 121 to lift and descend in the vertical direction along the bracket guide rod 1233, and the stability of the tray during storage and work is improved. (ii) a

As shown in fig. 2, 4 and 5, the two separating devices 130 are symmetrically installed on both sides of the tray magazine frame 110, and include a mounting fork mounting bracket 131, a fork mechanism 132 and a shielding plate 133. The fork mounting bracket 131 is mounted on the tray magazine frame 110, and serves as a mounting body of the fork mechanism 132. The fork pulling mechanism 132 comprises a fork pulling 1321, a slider I1322, a slide rail I1323 and a fork pulling cylinder 1324. The slide rail I1323 is arranged on the fork mounting frame 131 along the width direction of the tray library rack 110, the slider I1322 is mounted on the slide rail I1323, and the fork 1321 is mounted on the slider I1322. The shifting fork cylinder 1324 is horizontally installed on the shifting fork installation frame 131, the front end of the shifting fork cylinder is connected with the sliding block I1322, and the sliding block I1322 is driven to move on the sliding rail I1323. The shielding plate 133 is installed on the upper side and the outer side of the fork mounting frame 131 of the fork shifting mechanism 132 to shield the fork shifting mechanism 132, so as to prevent external impurities or dust from entering the fork shifting mechanism 132 during operation to affect the normal operation of the fork shifting mechanism 132, and ensure the working accuracy of the fork shifting mechanism 132.

When it is necessary to perform the holding and separating work of the trays in the plurality of tray support grooves 1211 at a time, it is necessary to simultaneously operate the plurality of forks 1321. In general, if the fork mechanism 132 is mounted as described above, a fork cylinder 1324 is provided for each fork 1321. However, the installation of the plurality of shifting fork cylinders 1324 increases the cost and the installation difficulty on the one hand, and on the other hand, the movement consistency of the plurality of shifting forks 1321 cannot be ensured, and the movement of a single shifting fork 1321 may be faster or slower than that of other shifting forks 1321, so that the separation rate of the tray is different, and the subsequent conveying of the tray is influenced, even the transplanting accuracy of the subsequent transplanter 3 is influenced. In view of this problem, in the present embodiment, a plurality of sliders I1322 are mounted on the lower end of one slider connecting plate 1325, and the mounting structures of the fork 1321 and the slide rail I1323 mounted in cooperation with the sliders I1322 are the same as before. A shifting fork push plate 1326 is fixedly mounted on the sliding block connecting plate 1325, the telescopic end of the shifting fork cylinder 1324 is connected with the shifting fork push plate 1326, and the sliding block connecting plate 1325 is driven to drive the sliding blocks I1322 to move along the sliding rail I1323. Through this kind of mode, only need use one shifting fork cylinder 1324 just can drive a plurality of shifting forks 1321 work simultaneously, practice thrift the cost, reduce the installation degree of difficulty, and because be the drive of one shifting fork cylinder 1324, each shifting fork 1321's motion uniformity is good. In consideration of the balance and other problems during driving of the fork pulling cylinder 1324, the three sets of fork pulling 1321, slider I1322 and slide rail I1323 are mounted on one slider connecting plate 1325, and two fork pulling mechanisms 132 arranged side by side are mounted on the fork pulling mounting frame 131 in one separating device 130.

As shown in fig. 7, the tray storage rack 140 includes a fixing frame 141 installed above the tray magazine frame 110, a plurality of vertical strips are provided in the fixing frame 141 to divide an inner space of the fixing frame 141 into a plurality of tray partitions 142, the tray partitions 142 are provided above the tray support slots 1211 in the same number as the tray support slots 1211 and are arranged in a one-to-one correspondence, and a sectional area of the tray partitions 142 is larger than that of the tray support slots 1211. More specifically, the sectional area of the tray is larger than that of the tray support groove 1211, and thus can be placed above the tray support groove 1211; the sectional area of the tray is smaller than that of the tray partition groove 142, and thus, the tray can be placed in the tray partition groove 142. In order to increase the installation stability of the fixing frame 141, a pair of storage rack fixing plates 143 is symmetrically installed at both ends of the fixing frame 141, and a pair of fixing parts matched with the storage rack fixing plates 143 is symmetrically installed at both ends of the tray magazine rack 110, and the two fixing parts are detachably and fixedly connected in a bolt manner or the like.

The tray warehouse for transplanting the plug seedlings is provided with a plurality of spaces for storing the trays, the stability of placing the trays is high, the trays can be automatically separated and conveyed to the equipment of a subsequent production line at one time, and the transplanting efficiency of the seedlings and the automation degree of the production line are improved. The specific use method of the tray library is explained below, and the method is mainly divided into the following steps:

firstly, placing trays on the tray support groove 1211, and uniformly filling the trays in the tray separation groove 142 in an up-down stacking manner;

secondly, the bracket lifting mechanism 122 works to lift the bracket 121, so that the height of the tray on the tray supporting groove 1211 rises until the upper end of the tray at the bottommost layer is flush with the shifting fork 1321, and the bracket lifting mechanism 122 stops working;

thirdly, the shifting fork cylinder 1324 works to push the shifting fork 1321 to extend to the upper end of the tray at the bottommost layer, or extend between the tray at the bottommost layer and the tray at the upper layer, so as to lift the tray at the upper layer and separate the tray at the lowest layer from the rest trays;

fourthly, the bracket lifting mechanism 122 works to control the bracket 121 to descend, the tray at the bottommost layer is sent to the tray conveying device 220 in the transfer table 2, and the tray conveying device 220 sends the tray at the bottommost layer away;

fifthly, the bracket lifting mechanism 122 works to lift the bracket 121, so that the tray supporting groove 1211 supports the tray supported by the shifting fork 1321, and then the shifting fork cylinder 1324 works to withdraw the shifting fork 1321;

sixthly, repeating the steps from one step to five until the number of the trays in the tray separation groove 142 is insufficient, and adding the trays.

Example 2

As shown in fig. 8, the transfer table for plug seedling transplantation is arranged in a plug seedling transplantation production line between a tray warehouse 1 and a transplanter 3, and is used for transferring trays in the tray warehouse 1 to the transplanter 3 and transplanting the trays. The automatic tray conveying device comprises a transfer rack 210, a tray conveying device 220 and a tray limiting device 230, wherein the tray conveying device 220 and the tray limiting device 230 are installed on the transfer rack 210, the transfer rack 210 serves as an installation main body, the tray conveying device 220 is used for conveying trays in a tray warehouse 1 to the front of a transplanting machine 3, and the tray limiting device 230 is used for limiting the trays at transplanting positions and improving transplanting accuracy of the transplanting machine 3. The structure and operation of the transfer table will be described in detail below.

As shown in fig. 8, the adaptor frame 210 is a rectangular frame-shaped structure, and a plurality of tray conveying grooves 211, 6 in this embodiment, are formed in the upper end surface of the adaptor frame, perpendicular to the conveying direction of the trays, and each tray conveying groove 211 extends from one side of the adaptor frame 210 to the other side along the conveying direction of the tray, and the width of the tray conveying groove 211 is smaller than that of the tray, so that the tray can stay on the tray conveying groove 211. The universal wheels II 212 and the foot cups II 213 are mounted at the lower end of the transfer rack 210, and the number of the universal wheels II 212 and the number of the foot cups II 213 can be selected according to the actual situation. Wherein, universal wheel II 212 makes the removal of switching platform more convenient, has increased and has installed switching platform, or the convenience when installing the switching platform to the production line, and foot cup II 213 has then strengthened the stability of switching platform during operation, prevents that the switching platform from rocking.

As shown in fig. 9, the tray conveying device 220 includes a slider II 221, a slide rail II 222, a tray receiving cylinder 223, a tray receiving plate 224, and a tray conveying cylinder 225. The slide rail II 222 is mounted at the lower end of the tray conveying groove 211 on the adaptor rack 210 along the moving direction of the tray, and the slider II 221 is mounted on the slide rail II 222. Tray receiving cylinder 223 is vertically installed on slider II 221, and tray receiving plate 224 is fixedly installed on the upper end of tray receiving cylinder 223. The tray conveying cylinder 225 is installed at the lower end of the slide rail II 222 and used for controlling the slide block II 221 to move on the slide rail II 222.

When multiple trays need to be transported at once, it is necessary for multiple tray receiving plates 224 to work simultaneously. In general, if the pallet feeding device 220 is installed according to the above-described structure, a pallet feeding cylinder 225 is provided for each pallet receiving plate 224. However, this results in high costs and difficulty in installation on the one hand, and on the other hand, the consistency of movement of the plurality of pallet receiving plates 224 cannot be ensured, and the speed at which the pallets are conveyed may not be the same, resulting in a deviation in the relative positions between the pallets. When the transplanting machine 3 is used for transplanting, under the condition of transplanting a plurality of seedlings at one time, the positions of the seedlings are kept consistent, so that the transplanting precision can be ensured only if the relative distances among a plurality of trays are consistent. Therefore, the distance between the trays is different, the transplanting progress can be reduced, and the condition that partial seedlings are not transplanted into the trays is caused.

In view of the above situation, one tray conveying device 220 of the present embodiment has a plurality of sets of sliding blocks II 221, sliding rails II 222, tray receiving cylinders 223, and tray receiving plates 224, and the installation relationship between each set of components is the same, except that a plurality of the sliding blocks II 221 are fixedly connected to one conveying connecting plate 226. The tray conveying cylinder 225 is provided with only one, is arranged below any one slide rail II 222 in the tray conveying device 220, and drives the conveying connecting plate 226 to move along the slide rail II 222, so as to drive the plurality of slide blocks II 221 to move. The tray conveying cylinder 225 is only adopted, so that the cost and the installation difficulty are reduced, and the motion consistency of a plurality of sliding blocks II 221 driven by the single tray conveying cylinder 225 can be well ensured. In consideration of the balance and the like when the tray conveying cylinder 225 is driven, the present embodiment mounts three sets of the slider II 221, the slide rail II 222, the tray receiving cylinder 223, and the tray receiving plate 224 on one conveying connecting plate 226, and mounts two tray conveying devices 220 side by side on the adaptor rack 210, and each tray receiving plate 224 is placed in a different tray conveying groove 211.

As shown in fig. 10 and 11, the tray limiting device 230 is mounted on the adaptor rack 210, and includes a limiting device mounting plate 231, a slide rail III 232, a slider III 233, a limiting plate connecting plate 234, a limiting plate 235, and a limiting cylinder 236, at a position close to the tail end of the tray conveying device 220. Wherein, the vertical installation of stop device mounting panel 231 is on adapter frame 210 in tray conveyer trough 211, and the vertical setting of slide rail III 232 is on stop device mounting panel 231, and slider III 233 is installed on slide rail III 232, and limiting plate connecting plate 234 is installed on slider III 233, and limiting plate 235 fixed mounting is on limiting plate connecting plate 234, and limiting cylinder 236 installs the stop device mounting panel 231 in limiting plate 235 below, and control limiting plate 235 goes up and down.

It should be noted that, in order to ensure the working consistency of the plurality of limiting plates 235, improve the limiting effect on the tray and reduce the cost and the installation difficulty, three limiting plates 235 are mounted on one limiting plate connecting plate 234 in the embodiment, and the three limiting plates 235 are respectively disposed in different tray conveying grooves 211. In addition, a pair of limiting plate guiding mechanism is still installed to the symmetry at the both ends of limiting plate connecting plate 234, it includes vertical setting at the slide rail IV 237 on adapter rack 210 and installs on slide rail IV 237, and with limiting plate connecting plate 234 fixed connection's slider IV 238, stability when increasing limiting plate connecting plate 234 on the one hand goes up and down, on the other hand has guaranteed the accuracy nature of the lift direction of limiting plate 235, avoid the lift direction to take place the deviation, lead to the limiting plate 235 to be blockked by the frame, can not stretch out from tray conveyer trough 211 and prescribe a limit to the tray in transplanting the position. In this embodiment, two tray limiting devices 230 are installed on the adaptor rack 210 side by side

In addition, the engagement between the tray and the stopper plate 235 may take various forms. For example, a baffle or a groove is arranged at the same position below each tray, and the limiting plate 235 is lifted to be inserted into the groove or block the baffle, so that the tray is limited and fixed at the transplanting position.

The above just be this embodiment plug seedling transplants and uses switching platform, it can carry the tray in the tray storehouse 1 accurately and wait to transplant the position, realizes the high-efficient accurate transplanting work of seedling, has improved plug seedling transplanting's degree of automation greatly, improves work efficiency. The following describes how the docking station can be used:

firstly, in an initial state, a tray receiving plate 224 in the tray conveying device 220 is arranged below the trays of the tray warehouse 1, after the bottommost tray is separated, a tray receiving cylinder 223 works, and the tray receiving plate 224 is lifted to receive the tray;

secondly, the tray conveying cylinder 225 works to convey the tray along the slide rail II 222, and when the tray is conveyed to the tail end of the slide rail II 222, the tray receiving cylinder 223 drives the tray receiving plate 224 to descend, so that the tray stays on the tray conveying groove 211, and the tray conveying cylinder 225 drives the tray receiving plate 224 to return to the initial position;

thirdly, repeating the first step and the second step until the tray conveyed from the back pushes the tray staying on the tray conveying groove 211 from the front to a transplanting position, fixing the tray by the tray limiting device 230, transplanting by the transplanter 3, and improving the contact surface between the two trays in a fixing mode except that a groove or a baffle is arranged below the tray so that a gap for inserting the limiting plate 235 is reserved on the contact surface when the two trays push each other;

fourthly, after the transplanting work is finished, the tray limiting device 230 loosens the tray;

fifthly, repeating the steps from one to four.

It is worth mentioning that, the mode that adopts the tray to push away the tray pushes away the tray to limiting plate 235 department with the tray of preceding transport, the stroke of tray conveying cylinder 225 has been reduced on the one hand, the cost is saved, on the other hand also makes things convenient for the installation of tray conveyor 220 and tray stop device 230, because, if tray conveyor 220 directly the tray carry to limiting plate 235 department, then the mounted position of tray conveyor 220 and tray stop device 230 must take place to overlap, lead to the installation extremely troublesome, and also more complicated when overhauing. In addition, the mode that the tray pushes the tray is adopted, the distance between the front tray and the rear tray can be well ensured to be consistent, so that when the transplanter 3 transplants a plurality of trays in one tray conveying groove 211 at a time, the seedlings can be accurately transplanted to the trays only by ensuring the consistent distance between the clamped seedlings.

Example 3

As shown in fig. 12, a plug seedling transplanter, which is provided in a plug seedling transplanting line, for transplanting a planting cup filled with a seedling into a tray. The seedling conveying line 320 is used for conveying a seedling tray filled with planting cups, and the two grabbing devices 330 are used for grabbing the planting cups to a tray on the transfer table 2. The specific structure and operation of which are described in detail below.

As shown in fig. 13, the transplanting machine frame 310 is a frame structure with two side supports and a higher middle end face, and it should be noted that the height of the middle end face needs to be higher than the height of the tray on the adapting station 2, and the width of the middle end face needs to be larger than the width of the adapting station 2, so that the adapting station 2 can pass through the lower middle end face of the transplanting machine frame 310 when actually installed in the production line, and more specifically, the middle end face is located at the rear end of the adapting station 2 and close to the tray conveying device 220. The lower ends of the frames at the two sides of the transplanting machine frame 310 are provided with universal wheels III 311 and foot cups III 312, the specific number of the universal wheels III 311 and the foot cups III 312 can be selected according to the actual situation, in this embodiment, the number of the universal wheels III 311 and the number of the foot cups III 312 are four, and the four universal wheels III 311 and the four foot cups III 312 are respectively arranged at the front end and the rear end below the frames at the two sides. Wherein, universal wheel III 311 makes the removal of transplanter more convenient, has increased and has installing the transplanter, or the convenience when installing the transplanter to the production line, and the stability of transplanter during operation has then been strengthened to foot cup III 312, prevents that the transplanter from rocking.

As shown in fig. 14, a seedling conveying line 320 is provided on the middle end surface of the transplanting frame 310, and the conveying direction thereof is perpendicular to the conveying direction of the tray on the transfer table 2. Two blocking mechanisms 321 are installed on one side of the seedling conveying line 320, and a pair of seedling tray positioning frames 322 are symmetrically installed on two sides of the seedling conveying line 320 close to the two blocking mechanisms 321 respectively. The blocking mechanism 321 comprises a blocking cylinder 3211 and a seedling tray baffle 3212. Wherein, block cylinder 3211 and install on seedling transfer chain 320, its flexible direction perpendicular to seedling transfer chain 320's direction of motion, seedling dish baffle 3212 installs the front end at blocking cylinder 3211. When the seedling tray is conveyed to the stopping mechanism 321, the stopping cylinder 3211 works to extend the seedling tray baffle 3212 to stop the seedling tray, and the gripping device 330 starts to perform seedling transplanting work. At this time, the seedling tray positioning frames 322 are located at two sides of the seedling tray and are used for preventing the seedling tray from displacing and shaking when the gripping device 330 grips the planting cups in the seedling tray.

A plate is extended and fixed on the other side of the transplanting frame 310 opposite to the blocking mechanism 321, and the grasping device 330 is installed on the plate. As shown in fig. 12, the grasping apparatus 330 includes a robot 331 and a gripper 332. Wherein, the robot 331 is used for driving the hand grip 332 to grip the planting cup, and the hand grip 332 is used for clamping and loosening the planting cup.

The robot 331 includes a support 3311, a connecting arm 3312, and a gripper mounting arm 3313. The support 3311 is fixedly mounted on the plate of the transplanting frame 310, one end of the connecting arm 3312 is hinged to the upper end of the support 3311, the other end is hinged to one end of the gripper mounting arm 3313, and the other end of the gripper mounting arm 3313 is provided with a gripper 332. Through the setting of two consecutive articulated connections for tongs installation arm 3313 that robot 331 and tongs 332 are connected can have a great turned angle, thereby when setting up seedling transfer chain 320 alternately in the upper end of switching platform 2, robot 331 still can control tongs 332 and send the seedling on seedling transfer chain 320 to, compared with the prior art, seedling transfer chain 320 and the mode of tray transfer chain parallel arrangement, it is under the same equipment occupation space, the quantity of the tray and the seedling of carrying has all obtained great improvement, thereby transplanted efficiency.

As shown in fig. 15 and 16, the hand grip 332 includes a grip connection plate 3321 mounted on the grip mounting arm 3313, a jaw cylinder 3322 mounted on the grip connection plate 3321, a jaw 3323, a pitch cylinder 3324, a jaw connection plate 3325, a slider V3326, and a slide rail V3327.

The slide rail V3327 is arranged along the length direction of the gripper connecting plate 3321, and the plurality of slide blocks V3326 are arranged on the slide rail V3327 in a matching manner. Each sliding block V3326 is fixedly connected with a clamping jaw connecting plate 3325, each clamping jaw connecting plate 3325 is hinged with a pair of clamping jaws 3323, a clamping jaw air cylinder 3322 is transversely arranged between each pair of clamping jaws 3323, one end of each clamping jaw air cylinder 3322 is connected with one clamping jaw 3323, the other end of each clamping jaw air cylinder 3322 is connected with the other clamping jaw 3323, and the clamping jaw air cylinder 3322 stretches to control the opening and closing of the clamping jaw 3323. In this embodiment, four gripper connecting plates 3325 are mounted on one gripper connecting plate 3321. The two ends of the distance-adjusting cylinder 3324 are respectively connected with the two outermost clamping jaw connecting plates 3325, the two inner clamping jaw connecting plates 3325 are connected through springs, specifically, a spring seat 3328 is respectively arranged on the two inner clamping jaw connecting plates 3325, and a spring shaft 3029 is fixedly connected between the two spring seats 3328 along the direction of the sliding rail V3327.

Next, a plurality of stoppers are installed between the respective components on the hand grip 332 according to the distance between the planting cups with seedlings on the seedling tray and the distance between the trays on the tray transfer groove 211 (these two distances need to be kept the same). More specifically, two clamping jaw connecting plates 3325 positioned on the inner side are provided with limiting blocks I33251, and a limiting block II33252 matched with the limiting blocks I33251 is arranged on the gripper connecting plate 3321 between the two clamping jaw connecting plates 3325 and the outer side. Limiting blocks III 33253 are respectively arranged at the two ends of the gripper connecting plate 3321 and the moving limit positions of the two clamping jaw connecting plates 3325 at the outer side.

When the hand grip 332 is in the initial state, the distance adjustment cylinder 3324 is in the contracted state, and the two outer jaw connection plates 3325 press the inner jaw connection plates 3325, so that the spring shaft 3329 between the inner jaw connection plates 3325 is in the initial state. When the hand grip 332 works, the distance-adjusting cylinder 3324 extends to drive the outer clamping jaw connecting plate 3325 to slide towards two sides, and stops moving when the distance-adjusting cylinder touches the limiting block III 33253, and the inner spring shaft 3329 stretches the inner clamping jaw connecting plate 3325, so that the limiting block I33252 on the inner clamping jaw connecting plate 3325 abuts against the limiting block II33252 on the hand grip connecting plate 3321, and the inner clamping jaw connecting plate 3325 is fixed. At this moment, the fixed position of four clamping jaw connecting plates 3325 and the distance between them all keep unanimous, and the distance between the kind cup on the seedling dish, the distance between the tray on the tray conveyer trough 211 keep unanimous to once only press from both sides a plurality of kind cups in the seedling dish and get the tray, fix a position accurately, press from both sides and get efficient, prevent to lead to pressing from both sides because the interval is inconsistent and get the seedling emergence error, appear not pressing from both sides and get the condition that causes the damage even to the seedling.

Above-mentioned just be a cave dish seedling transplanter of this embodiment, it can once only transplant more seedlings under equal equipment occupation space, has improved and has transplanted efficiency, and the interval between a plurality of tongs 332 keeps unanimous, has avoided taking place to press from both sides and has got the error, and the problem that can't get the seedling and cause the damage even to the seedling is got to the clamp. Specifically, the method can be used by the following steps:

when a seedling tray on the seedling conveying line 320 moves to the front of a blocking mechanism 321, a blocking cylinder 3211 of the blocking mechanism 321 works to enable a seedling tray baffle 3212 to stretch out to block the seedling tray, the seedling tray stops moving, and the seedling tray is kept still on a seedling tray positioning frame 322;

secondly, the robot 331 works to drive the gripper 332 to move to the seedling tray, the distance adjusting cylinder 3324 extends to enable the gripper connecting plates 3325 on two sides to touch the limiting block III 33253, the gripper cylinder 3322 contracts, the gripper connecting plates 3325 on the inner sides are fixed under the action of the spring shaft 3329, the limiting block I33251 and the limiting block II33252, accordingly, the distance between two adjacent gripper connecting plates 3325 is kept consistent, the distance between the two adjacent gripper connecting plates 3325 is the same as the distance between the planting cups and the distance between trays on the tray conveying groove 211, after the gripper 3323 clamps the planting cups, the robot 331 moves the gripper 332 to the tray limiting device 230 on the transfer table 2, the gripper cylinder 3322 extends to enable the gripper 3323 to loosen the planting cups, and the planting cups are placed in the trays on the tray limiting device 230.

Example 4

As shown in fig. 1, a plug seedling transplanting production line for performing plug seedling transplanting production work, includes a tray library 1, a transfer platform 2, a transplanter 3 and a culture platform 4 connected in sequence, wherein the tray library 1 adopts the tray library for plug seedling transplanting in embodiment 1, the transfer platform 2 adopts the transfer platform for plug seedling transplanting in embodiment 2, and the transplanter 3 adopts the plug seedling transplanter in embodiment 3. The structure of the culture platform 4 is shown in fig. 17, and is a conveying platform with a rectangular upper end surface, and the upper end surface is provided with a rectangular groove matched with the tray conveying groove 211 on the switching platform 2. The specific structures of the tray magazine 1, the transfer table 2, and the transplanter 3 have been described in detail in embodiments 1 to 3, and thus are omitted here. The specific operation of the production line is described in detail below.

Before the production line works, the worker places the trays on the tray support groove 1211 to uniformly fill the trays in the tray partition grooves 142 in an up-down stacking manner, at this time, the tray receiving plate 224 in the tray conveying device 220 is positioned below the tray support groove 1211, and when the tray support groove 1211 descends, the trays on the tray support groove 1211 can be placed on the tray receiving plate 224.

Next, the tray magazine 1 operates to separate the tray on the lowermost layer in the tray support groove 1211 and transfer the tray to the tray receiving plate 224 below. The tray conveying device 220 works to send the tray to the tail end of the slide rail II 222, and then returns to the initial position to continue conveying the tray. After the rear tray is conveyed to the tail end of the slide rail II 222, the front tray is pushed, until the push tray is pushed to the transplanting position of the tray limiting device 230, the tray limiting device 230 works to limit the tray at the transplanting position.

Next, the transplanter 3 operates to stop the seedling tray on the seedling conveying line 320 before the stopping mechanism 321, the robot 331 drives the gripper 332 to move to the seedling tray to grip the planting cup on the seedling tray, and then the robot 331 drives the gripper 332 to the tray at the transplanting position to release the planting cup and place the planting cup on the tray.

Finally, the tray limiting device 230 releases the transplanted tray, so that the tray is pushed by the tray behind to the culture table 4 connected with the transfer table 2 and is sent away by the culture table 4. After the transplanted tray passes through the tray stopper 230, the tray stopper 230 operates again to block the following tray.

It should be noted that the time for transplanting seedlings by the transplanter 3, the time for separating trays by the tray magazine 1 and the time for the round trip of the tray conveyor 220 should be kept consistent, so as to ensure that the whole production line can continue to work. When the tray transfer in the tray magazine 1 is completed, a new tray is filled therein.

In this embodiment, the number of the tray support grooves 1211, the tray partition grooves 142, the fork 1321 on one side of the tray magazine frame 110, the tray conveying grooves 211, the tray receiving plates 224, the stopper plates 235, and the rectangular grooves on the culture plate 4 should be the same, and 6 in this embodiment.

It should be noted that the tray magazine 1, the transfer table 2 and the transplanter 3 in the production line are all designed for plug seedling production, and the high-precision, high-efficiency and full-automatic effects of plug seedling transplantation can be realized only by the cooperation of the three.

The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.

Claims (8)

1. The utility model provides a tray storehouse for plug seedling is transplanted, includes tray storehouse frame (110), install tray device (120), separator (130) and tray storage rack (140) on tray storehouse frame (110), its characterized in that:

the tray device (120) comprises a bracket (121) and a bracket lifting mechanism (122); the bracket (121) is arranged on the tray warehouse rack (110), and a plurality of tray supporting grooves (1211) are arranged on the bracket along the length direction of the tray warehouse rack (110); the bracket lifting mechanism (122) is arranged on the tray warehouse rack (110) below the bracket (121) and is used for controlling the bracket (121) to lift;

the separating device (130) comprises a shifting fork mounting rack (131) arranged on the tray warehouse rack (110), and a shifting fork mechanism (132) is arranged on the shifting fork mounting rack (131); the shifting fork mechanism (132) comprises a shifting fork (1321), a sliding block I (1322), a sliding rail I (1323) and a shifting fork cylinder (1324); the sliding rail I (1323) is arranged on the shifting fork mounting rack (131) along the width direction of the tray library rack (110), the sliding block I (1322) is arranged on the sliding rail I (1323), and the shifting fork (1321) is arranged on the sliding block I (1322); the shifting fork cylinder (1324) is installed on the shifting fork installation frame (131) and drives the sliding block I (1322) to move on the sliding rail I (1323);

the tray storage rack (140) comprises a fixed rack (141) arranged above the tray warehouse rack (110), and a plurality of tray separation grooves (142) are formed in the fixed rack (141) along the length direction of the tray warehouse rack (110); the tray separation grooves (142) and the tray support grooves (1211) are the same in number and are arranged above the tray support grooves (1211);

the tray (121) comprises a pair of strip frames (1212) symmetrically arranged along the length direction of the tray library rack (110), a plurality of transverse frames (1213) are mounted on the strip frames (1212) along the length direction of the strip frames (1212), and tray support grooves (1211) are formed between the transverse frames (1213);

the tray device (120) further comprises a pair of bracket guide mechanisms (123) symmetrically arranged at two ends of the bracket (121); the bracket guide mechanism (123) comprises a guide frame (1231), a bracket guide rod (1233) and a guide plate (1232); the guide frame (1231) is installed on the tray warehouse rack (110), the bracket guide rod (1233) is in a vertical state and penetrates through the guide plate (1232), and the pair of long racks (1212) is fixedly installed on the guide plate (1232).

2. The tray magazine for plug seedling transplantation according to claim 1, characterized in that: the shifting fork mechanism (132) is provided with a plurality of groups of shifting forks (1321), sliding blocks I (1322) and sliding rails I (1323); the sliding blocks I (1322) are all installed at the lower end of a sliding block connecting plate (1325), a shifting fork push plate (1326) is fixedly installed on the sliding block connecting plate (1325), and the telescopic end of the shifting fork air cylinder (1324) is connected with the shifting fork push plate (1326).

3. The tray magazine for plug seedling transplantation according to claim 2, characterized in that: and shielding plates (133) are respectively arranged on the upper side and the outer side of the shifting fork mounting frame (131) of the shifting fork mechanism (132).

4. The tray magazine for plug seedling transplantation according to any one of claims 1 to 3, characterized in that: the two separating devices (130) are symmetrically arranged at two sides of the tray warehouse rack (110).

5. The tray magazine for plug seedling transplantation according to any one of claims 1 to 3, characterized in that: the universal wheel I (111) and the foot cup I (112) are mounted below the tray library rack (110).

6. The tray magazine for plug seedling transplantation according to any one of claims 1 to 3, characterized in that: a pair of storage rack fixing plates (143) are symmetrically installed at two ends of the fixing rack (141), and a pair of fixing parts matched with the storage rack fixing plates (143) are symmetrically installed at two ends of the tray warehouse rack (110).

7. A method for using the tray magazine for plug seedling transplantation according to any one of claims 1 to 6, comprising the steps of:

firstly, placing trays on the tray supporting grooves (1211) to enable the trays to be uniformly filled in the tray separation grooves (142);

secondly, the bracket lifting mechanism (122) works to lift the bracket (121) to enable the upper end of the tray at the bottommost layer on the tray supporting groove (1211) to be flush with the shifting fork (1321);

thirdly, a shifting fork cylinder (1324) works to push a shifting fork (1321) to extend to the upper end of the tray at the bottommost layer, so as to support the tray above and separate the tray at the bottommost layer from other trays;

fourthly, the bracket lifting mechanism (122) works to control the bracket (121) to descend, the tray at the bottommost layer is sent to a tray conveying device (220) in the transfer table (2), and the tray conveying device (220) sends the tray at the bottommost layer away;

fifthly, the bracket lifting mechanism (122) works to lift the bracket (121) to enable the tray supporting groove (1211) to support the tray supported by the shifting fork (1321), and then the shifting fork cylinder (1324) works to withdraw the shifting fork (1321);

sixthly, repeating the steps from one step to five until the number of the trays in the tray separation groove (142) is insufficient, and adding the trays.

8. The utility model provides a plug seedling transplanting production line, includes tray storehouse (1), switching platform (2), transplanter (3) and cultivation platform (4) that connect gradually, its characterized in that: the tray warehouse (1) adopts the tray warehouse for transplanting the plug seedlings as claimed in any one of claims 1 to 6.

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