An automatic stacking production line for seedling plug trays

Abstract

The present invention belongs to the technical field of turnover and transportation of plug trays, and provides an automatic stacking production line for seedling-raising plug trays, which includes a multi-layer bed feeding machine, a plug tray conveying and translating device, and a seedling tray towing device; the plug tray conveying and translating device includes a first plug tray conveying mechanism and a plug tray pushing and sending mechanism located at the discharging end of the first plug tray conveying mechanism; the multi-layer bed feeding machine includes a frame, on which a second plug tray conveying mechanism, a first plug tray pushing mechanism, a lifting platform and a second plug tray pushing mechanism are provided. The second plug tray conveying mechanism is located downstream of the plug tray pushing and sending mechanism, the first plug tray pushing mechanism corresponds to the discharging end of the second plug tray conveying mechanism, the lifting platform is located downstream of the first plug tray pushing mechanism, and the second plug tray pushing mechanism is located on the lifting platform; the seedling tray towing device includes a track, on which a seedling tray pushing and sending mechanism and a seedling tray blocking mechanism are provided. The present invention can realize the automatic stacking of plug trays on each seedling tray, not only greatly reducing the labor cost, but also greatly improving the working efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of plug tray turnover transportation, and in particular to an automatic stacking production line for seedling cultivation plug trays. Background Art

[0002] Plug tray seedling technology is a modern seedling technology that uses special plug trays of different specifications as containers, peat, vermiculite and other light soil-free substrate materials as seedling substrates, mechanized precision sowing, one hole and one seed, and one-time seedlings. Plug tray seedling technology is a form of factory seedling cultivation. Usually, the plug tray is filled and sown first, and then the plug tray is placed on the seedling vehicle. The seedling vehicle realizes the turnover and transportation of the plug tray, and the plug tray is moved to the digital seedling workshop to realize factory seedling cultivation in the seedling workshop.

[0003] A seedling car is a vehicle specially used for the transportation and turnover of horticultural crop seedlings. It is mainly used for turnover and transportation within the base greenhouse to improve turnover efficiency. The design of the seedling car takes into account the characteristics of horticultural crops. It usually has a multi-layer structure to facilitate the handling and loading and unloading of seedlings of different types of horticultural crops. The seedling car mainly includes a plug tray transfer car and a seedling transfer car; the plug tray transfer car is used to transport the sown plug tray to the germination room, and its height and width are determined according to the size of the plug tray, the space of the germination room, and the number of seedlings. Seedling carts are widely used in the field of vegetable seedling cultivation, especially in intensive seedling factories and seedling factories with relatively complete internal facilities in the base; they are suitable for turnover and transportation in the base greenhouse, which can reduce manual operations and improve work efficiency.

[0004] Compared with traditional seedling raising methods, factory seedling raising technology can shorten seedling raising time, save seed consumption, occupy a small area, is suitable for mechanized operation, saves labor and effort, realizes large-scale production, can artificially control the environment, is not affected by external conditions, can minimize the occurrence of diseases and insect pests, improve the seedling rate and promote uniform and strong seedlings. Since factory seedling raising is unified seedling raising and unified management, it ensures the completion of sowing tasks and the matching of various early and late crops according to plan. It is also conducive to the timely promotion of new varieties and is an important way to achieve good varieties and good seedlings. Factory seedling raising technology not only promotes the transformation of agricultural production methods, but also accelerates the adjustment and upgrading of agricultural industrial structure and promotes the process of agricultural modernization.

[0005] Although the use of seedling-raising carts has provided convenience for industrialized seedling raising, at present, there is still no equipment specifically used to automatically stack seedling trays on the seedling-raising carts. The placement of seedling trays on the seedling-raising carts still mainly relies on manual labor. The operator needs to manually carry the seedling trays and place them on the seedling-raising cart in sequence. Since the seedling-raising cart is a multi-layer structure with several layers of storage platforms, multiple seedling trays can be placed side by side on each layer of the storage platform in sequence. Therefore, it is necessary to manually place the seedling trays one by one on the storage platform. After filling one layer of the storage platform, then place the next layer of the storage platform. After filling one seedling-raising cart, then place the next seedling-raising cart. Finally, use an electric tractor to tow the seedling-raising cart filled with seedling trays to the seedling-raising workshop. The working method of manually carrying and placing seedling trays on the seedling-raising cart not only has a large labor intensity, low work efficiency, but also has a high labor cost, and it is difficult to meet the requirements of industrialized seedling raising for the turnover and transportation of seedling trays. Summary of the Invention

[0006] In order to overcome the defects of the prior art pointed out above, in-depth research has been carried out on this, and after a large amount of creative labor, the present invention has been completed.

[0007] Specifically, the technical problem to be solved by the present invention is: to provide an automatic stacking production line for seedling trays, so as to solve the technical problems that the current working method of manually carrying and placing seedling trays on the seedling-raising cart not only has a large labor intensity, low work efficiency, but also has a high labor cost.

[0008] To solve the above technical problems, the technical solution of the present invention is:

[0009] An automatic stacking production line for seedling trays includes a multi-layer bed feeding machine. There is a seedling tray conveying and translating device upstream of the multi-layer bed feeding machine, and a seedling-raising cart towing device downstream of the multi-layer bed feeding machine;

[0010] The seedling tray conveying and translating device includes a first seedling tray conveying mechanism and a seedling tray feeding mechanism. The seedling tray feeding mechanism is located at the discharging end of the first seedling tray conveying mechanism;

[0011] The multi-layer bed feeding machine includes a frame. There is a second seedling tray conveying mechanism, a first seedling tray pushing mechanism, a lifting platform and a second seedling tray pushing mechanism on the frame. The second seedling tray conveying mechanism is located downstream of the seedling tray feeding mechanism, and the feeding end of the second seedling tray conveying mechanism extends outside the frame and corresponds to the discharging end of the first seedling tray conveying mechanism. The first seedling tray pushing mechanism is located above the second seedling tray conveying mechanism, and the first seedling tray pushing mechanism corresponds to the discharging end of the second seedling tray conveying mechanism. The lifting platform is located downstream of the first seedling tray pushing mechanism, and the second seedling tray pushing mechanism is located on the lifting platform;

[0012] The seedling-raising cart traction device includes tracks, a seedling-raising cart feeding mechanism, and a seedling-raising cart blocking mechanism. There are two corresponding tracks, and a seedling-raising cart guiding channel adapted to the seedling-raising cart is provided between the two tracks. The seedling-raising cart feeding mechanism is located on one side of the end of one of the tracks, and the seedling-raising cart blocking mechanism is located at the end of the other track.

[0013] As an improved technical solution, the first tray conveying mechanism includes a first conveying frame body, on which a first conveyor belt driven by a first driving device is wound. A first tray guiding channel for realizing the guiding and conveying of trays is also provided on the first conveying frame body.

[0014] As an improved technical solution, the tray feeding mechanism includes a first feeding frame body, on which a first tray baffle for realizing the limiting and blocking of trays is fixedly installed. The first tray baffle is located at the discharging end of the first conveyor belt and is arranged corresponding to the first conveyor belt;

[0015] On the first feeding frame body, a first sliding mounting plate driven by a second driving device is slidably mounted in the horizontal direction. The first sliding mounting plate is located above the first conveyor belt, and a fork driven by a third driving device is rotatably mounted on the first sliding mounting plate.

[0016] As an improved technical solution, the second tray conveying mechanism includes a second conveying frame body fixedly installed on the machine frame, on which a second conveyor belt driven by a fourth driving device is wound. The second conveyor belt is at the same height as the first conveyor belt or is located below the first conveyor belt;

[0017] A second tray baffle for realizing the limiting and blocking of trays is fixedly installed on the second conveying frame body. The second tray baffle is located at the discharging end of the second conveying frame body and is arranged corresponding to the second conveyor belt. A pushing transition plate is also fixedly installed on one side of the second conveying frame body close to the lifting platform, and the pushing transition plate is arranged corresponding to the lifting platform.

[0018] As an improved technical solution, the first tray pushing mechanism includes a translation frame slidably mounted on the machine frame in the horizontal direction and driven by a fifth driving device. A lifting frame driven by a sixth driving device is slidably mounted on the translation frame in the vertical direction. A first tray push plate for realizing the pushing of trays is fixedly installed at the bottom of the lifting frame, and the first tray push plate is located above the second conveyor belt.

[0019] As an improved technical solution, the lifting platform is slidably mounted on the machine frame in the vertical direction and is driven by a seventh driving device. A second tray guiding channel for realizing the guiding and conveying of trays is provided on the lifting platform;

[0020] An origin detection sheet is fixedly mounted on the frame, and a first photoelectric sensor for realizing detection of the origin detection sheet is fixedly mounted on the lifting platform. When the first photoelectric sensor and the origin detection sheet are in a facing state, the lifting platform and the second conveyor belt are at the same height;

[0021] A second photoelectric sensor for detecting storage platforms at each level of the seedling raising vehicle is also fixedly installed on one end of the lifting platform close to the traction device of the seedling raising vehicle, and the second photoelectric sensor is located at the bottom of the lifting platform.

[0022] As an improved technical solution, the second hole tray pushing mechanism includes a pushing frame which is slidably installed on the lifting platform along the length direction of the second hole tray guide channel and driven by an eighth driving device. The pushing frame is provided with a second hole tray pushing plate driven by a ninth driving device. The second hole tray pushing plate is fixedly provided with an anti-warping baffle on the side close to the traction device of the seedling vehicle. When the second hole tray pushing plate is lifted to the feeding position, there is a feeding gap between the second hole tray pushing plate and the lifting platform for the hole tray to pass through.

[0023] As an improved technical solution, the end of the lifting platform close to the traction device of the seedling vehicle is also rotatably installed with a flip lap plate driven by a tenth drive device. When the flip lap plate is in a overlapping state, the end of the flip lap plate close to the lifting platform is flush with the lifting platform.

[0024] As an improved technical solution, the seedling raising vehicle transmission mechanism and the seedling raising vehicle blocking mechanism are respectively located at the same direction ends of the two tracks;

[0025] The seedling car shifting mechanism comprises a second shifting frame body located on one side of the track, a second sliding mounting plate driven by an eleventh driving device is slidably mounted on the second shifting frame body along the length direction of the guide channel of the seedling car, a shifting block is rotatably mounted on the second sliding mounting plate, and the shifting block has a shifting end extending to the guide channel of the seedling car, and an elastic reset member and a stopper are also provided on the second sliding mounting plate, the elastic reset member is connected to the shifting block, the stopper is fixedly mounted on the second sliding mounting plate, and under the action of the elastic reset member, the shifting block is set against the stopper;

[0026] The blocking mechanism of the seedling raising vehicle comprises a blocking cylinder, which is fixedly mounted on the track and arranged close to the end of the track.

[0027] As an improved technical solution, a cylindrical pin is fixedly installed on the second sliding mounting plate. The dialing block is provided with a mounting hole adapted to the cylindrical pin. The mounting hole is located between the feeding end and the connecting end of the dialing block. The dialing block is rotatably mounted on the second sliding mounting plate through the cylindrical pin and the mounting hole. A connecting column is fixedly installed at the connecting end of the dialing block. A fixed column is also fixedly installed on the second sliding mounting plate. The elastic resetting member is a tension spring. The tension spring is located between the connecting column and the fixed column. Two ends of the tension spring are respectively connected with the connecting column and the fixed column. The stop block is located between the connecting end of the dialing block and the fixed column. Under the action of the tension spring, the connecting end of the dialing block abuts against the stop block.

[0028] After adopting the above technical solution, the beneficial effects of the present invention are as follows:

[0029] For the automatic stacking production line of the seedling-raising trays, the automatic feeding of the trays is realized through the first tray conveying mechanism. The orderly feeding of the trays conveyed to the discharging end of the first tray conveying mechanism is realized through the tray feeding mechanism, and the trays are orderly fed to the second tray conveying mechanism. The trays are conveyed to the lower part of the first tray pushing mechanism through the second tray conveying mechanism and multiple trays are arranged side by side. The synchronous pushing of multiple trays conveyed to the discharging end of the second tray conveying mechanism is realized through the first tray pushing mechanism, and the trays are pushed to the lifting platform. Through the cooperation of the lifting platform and the second tray pushing mechanism, the trays on the lifting platform are pushed to each layer of the placing table of the seedling-raising cart, realizing the automatic feeding of the trays on the seedling-raising cart. Through the cooperation of the seedling-raising cart feeding mechanism and the seedling-raising cart blocking mechanism, the automatic feeding of the seedling-raising cart is realized, and multiple connected seedling-raising carts are orderly fed to the tray loading position. In this way, the automatic feeding of the trays, the orderly feeding of a single tray, the synchronous pushing of multiple trays, the automatic placing of the trays on each layer of the placing table of the seedling-raising cart, and the automatic feeding of the seedling-raising cart are realized, so as to realize the automated assembly line operation of sequentially placing the trays on the seedling-raising cart.

[0030] When the automatic seedling tray stacking production line is in operation, the first driving device works to drive the first conveyor belt to transport the tray, and the first tray guide channel is used to guide and limit the tray. After the tray is transported to the unloading end of the first conveying frame, the first tray baffle is used to position and block the tray. Then, the second driving device works to drive the first sliding mounting plate to move, and the tray is sent through the shift fork to be sent to the second conveyor belt. After one tray is sent, the third driving device works to drive the sending end of the shift fork to rise to the avoidance position to avoid the tray when the shift fork is displaced. At the same time, the second driving device works to drive the first sliding mounting plate to move. After the plate is reset and the first sliding mounting plate is reset, the third driving device works to drive the sending end of the shift fork to drop to the sending position, and then the second driving device works to drive the first sliding mounting plate to move to realize the sending of the next hole tray, thereby realizing automatic transportation and orderly sending of the hole trays, and sending the hole trays one by one in an orderly manner to the second conveyor belt; while the hole tray conveying translation device realizes automatic transportation and orderly sending of the hole trays, the fourth driving device works to drive the second conveyor belt to realize the transportation of the hole trays on the second conveyor belt, and after the hole trays are transported to the unloading end of the second conveying frame, the second hole tray baffle realizes the positioning and blocking of the hole trays, and the next hole tray to be transported abuts against the previous hole tray After the hole tray is placed on the lifting platform, the previous hole tray realizes the positioning and blocking of the next hole tray, so that the hole trays can be arranged side by side in sequence along the conveying direction of the hole trays on the second conveyor belt. When the number of arranged hole trays reaches the set value, the sixth driving device works to drive the lifting frame to descend, and realizes the descending displacement of the first hole tray push plate. Then, the fifth driving device works to drive the translation frame and the lifting frame to move in the direction close to the lifting platform, and the first hole tray push plate is used to realize the synchronous pushing of multiple side-by-side hole trays, and push a row of hole trays onto the lifting platform. After that, the sixth driving device works to drive the lifting frame to rise and reset. At the same time, the fifth driving device works to drive the translation frame to reset. Thereby, the first plug tray push plate is reset to realize the pushing of the next batch of plug trays; while the first plug tray pushing mechanism is reset, the seventh driving device works to drive the lifting platform to rise or fall to the set height, so that the lifting platform and the empty layer storage table currently corresponding to the seedling raising vehicle are at the same height, and then the tenth driving device works to drive the flip lap plate to be placed on the current storage table, and then the ninth driving device works to drive the second plug tray push plate to descend to the pushing position, and finally, the eighth driving device works to drive the pushing frame to move, and under the guidance of the second plug tray guide channel, the plug tray on the lifting platform is pushed to the storage table of the seedling raising vehicle through the second plug tray push plate;After completing the loading of the plug trays on one layer of the storage platform, the tenth driving device works to drive the flip lap plate to reset, and then the seventh driving device works to drive the lifting platform to move to the initial height position. While the lifting platform is resetting, the ninth driving device works to drive the second plug tray push plate to rise and reset, and the eighth driving device works to drive the pushing frame to reset. When the lifting platform reaches the initial height position, the second plug tray push plate is also reset to the feeding position. At this time, the lifting platform and the second conveyor belt are at the same height, and there is a feeding gap between the second plug tray push plate and the lifting platform for the plug tray to pass through. The next batch of plug trays can be pushed to the lifting platform through the first plug tray pushing mechanism, and the above steps are repeated to push the next batch of plug trays to the next layer of the storage platform of the seedling car, and so on and so forth to realize the automatic loading of the plug trays on the seedling car; the plug trays of a seedling car are completed. After loading, the blocking cylinder works to release the blocking state of the current seedling car, and then the eleventh driving device works to drive the second sliding mounting plate to move in the opposite direction of the seedling car's conveying. When the shifting block contacts the front end of the next seedling car, it will automatically avoid it. After the shifting block automatically resets, the eleventh driving device works to drive the second sliding mounting plate to move in the length direction of the guide channel of the seedling car, and the shifting block abuts against the next seedling car and shifts the seedling car to move in the direction of the plug tray upper material position. When the last seedling car filled with plug trays passes the plug tray upper material position, the blocking cylinder resets to the blocking state to achieve the positioning and blocking of the next seedling car. When the next seedling car moves to the plug tray upper material position, the shifting block cooperates with the blocking cylinder to realize the positioning of the seedling car at the plug tray upper material position, and the plug tray of the next seedling car can be loaded, and this is repeated. ;

[0031] Through this automatic seedling tray stacking production line, the plug trays can be automatically stacked in sequence on each seedling vehicle, and the loading operation of the plug trays on the seedling vehicle is efficient and orderly. Compared with the traditional manual working method of carrying and placing the plug trays, it has a high degree of automation and realizes the effective replacement of manual labor. Not only the labor cost is greatly reduced, but also the work efficiency is greatly improved, which meets the use needs of factory seedling cultivation for the turnover and transportation of plug trays. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0033] Figure 1 It is a three-dimensional structural schematic diagram of the automatic stacking production line for seedling trays of the present invention;

[0034] Figure 2 Another three-dimensional structural schematic diagram of the automatic seedling tray stacking production line of the present invention;

[0035] Figure 3 Another three-dimensional structural schematic diagram of the seedling-growing tray automatic stacking production line of the present invention;

[0036] Figure 4 Structural schematic diagram of the tray conveying and translating device of the present invention;

[0037] Figure 5 Structural schematic diagram of the first tray conveying mechanism of the present invention;

[0038] Figure 6 Structural schematic diagram of the tray pushing mechanism of the present invention;

[0039] Figure 7 Structural schematic diagram of the installation of the first driving shaft of the present invention;

[0040] Figure 8 Structural schematic diagram of the tray pushing part of the tray pushing mechanism of the present invention;

[0041] Figure 9 Three-dimensional structural schematic diagram of the multi-layer bed feeding machine of the present invention;

[0042] Figure 10 Another three-dimensional structural schematic diagram of the multi-layer bed feeding machine of the present invention;

[0043] Figure 11 Cooperative installation structural schematic diagram of the second tray conveying mechanism and the first tray pushing mechanism of the present invention;

[0044] Figure 12 Three-dimensional structural schematic diagram of the second tray conveying mechanism of the present invention;

[0045] Figure 13 Structural schematic diagram of the driving end of the second tray conveying mechanism of the present invention;

[0046] Figure 14 Structural schematic diagram of the installation of the second driving shaft of the present invention;

[0047] Figure 15 Three-dimensional structural schematic diagram of the first tray pushing mechanism of the present invention;

[0048] Figure 16 Another three-dimensional structural schematic diagram of the first tray pushing mechanism of the present invention;

[0049] Figure 17 Three-dimensional structural schematic diagram of the tray lifting and pushing part of the present invention;

[0050] Figure 18 Another three-dimensional structural schematic diagram of the tray lifting and pushing part of the present invention;

[0051] Figure 19Schematic diagram of the installation structure of the lifting platform of the present invention;

[0052] Figure 20 Schematic diagram of the structure of the second tray pushing mechanism of the present invention;

[0053] Figure 21 For Figure 16 Enlarged schematic diagram of the structure at part I in

[0054] Figure 22 Schematic diagram of the installation structure of the pushing frame body of the present invention;

[0055] Figure 23 Schematic diagram of the structure at the driving end of the installation frame body of the present invention;

[0056] Figure 24 Schematic diagram of the structure at one end of the pushing frame body far away from the installation frame body of the present invention;

[0057] Figure 25 Schematic diagram of the structure of the traction device of the seedling-raising cart for the traction and pushing state of the seedling-raising cart of the present invention;

[0058] Figure 26 Schematic diagram of the structure of the traction device of the seedling-raising cart of the present invention;

[0059] Figure 27 Schematic diagram of the structure of the track of the present invention;

[0060] Figure 28 Schematic diagram of the structure of the pushing mechanism of the seedling-raising cart of the present invention;

[0061] Figure 29 Schematic diagram of the structure at the driving end of the pushing mechanism of the seedling-raising cart of the present invention;

[0062] Figure 30 Another three-dimensional schematic diagram of the structure at the driving end of the pushing mechanism of the seedling-raising cart of the present invention;

[0063] Reference numerals: 1 - First conveying frame body; 2 - First conveyor belt; 3 - First driving shaft; 4 - First conveying motor; 5 - First main shaft mounting plate; 6 - First slide rail; 7 - First slider type bearing seat; 8 - First adjusting screw; 9 - First motor mounting plate; 10 - Limit stop bar; 11 - First pushing frame body; 12 - Fixed plate; 13 - First tray baffle; 14 - Pushing cylinder; 15 - First sliding mounting plate; 16 - First telescopic cylinder; 17 - Fork mounting rod; 18 - Fork;

[0064] 19 - Frame; 20 - Second conveying frame; 21 - Second conveyor belt; 22 - Second tray baffle; 23 - Pushing transition plate; 24 - Second driving shaft; 25 - Second conveying motor; 26 - Second main shaft mounting plate; 27 - Second slide rail; 28 - Second slider type bearing seat; 29 - Second adjusting screw; 30 - Second motor mounting plate;

[0065] 31 - Translation frame; 32 - First guide rail; 33 - First sliding seat; 34 - First pushing motor; 35 - Translation drive shaft; 36 - Gear; 37 - Rack; 38 - First travel switch; 39 - Lifting frame; 40 - Second sliding seat; 41 - Second guide rail; 42 - First lifting cylinder; 43 - First tray push plate;

[0066] 44 - Lifting platform; 45 - Origin detection piece; 46 - First photoelectric sensor; 47 - Second photoelectric sensor; 48 - Third guide rail; 49 - Third sliding seat; 50 - Lifting motor; 51 - Lifting drive shaft; 52 - Driving sprocket; 53 - Driven sprocket; 54 - Transmission chain; 55 - Chain fixing seat; 56 - Limit baffle;

[0067] 57 - Mounting frame; 58 - Fourth guide rail; 59 - Fourth sliding seat; 60 - Pushing frame; 61 - Support roller; 62 - Second pushing motor; 63 - First driving pulley; 64 - First driven pulley; 65 - Pushing synchronous belt; 66 - Second travel switch; 67 - Limit detection piece; 68 - Second lifting cylinder; 69 - Second tray push plate; 70 - Anti - warping baffle; 71 - Flipping lap plate; 72 - Second telescopic cylinder;

[0068] 73 - Protective net; 74 - First adjustable support foot; 75 - Second adjustable support foot; 76 - Third adjustable support foot;

[0069] 77 - Track; 7701 - Bending part; 78 - Limit roller; 79 - Adjustable support seat; 80 - Second feeding frame; 81 - Second sliding mounting plate; 82 - Fifth guide rail; 83 - Feeding motor; 84 - Second driving pulley; 85 - Second driven pulley; 86 - Feeding synchronous belt; 87 - Cylindrical pin; 88 - Pushing block; 89 - Connecting column; 90 - Fixed column; 91 - Tensile spring; 92 - Stop block; 93 - Third travel switch; 94 - Supporting bracket; 95 - Blocking cylinder;

[0070] 96 - Tray; 97 - Seedling raising cart. Detailed implementation mode

[0071] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0072] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0073] At the same time, the meaning of "and / or" or "and / or" appearing throughout the text is to include three solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously.

[0074] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0075] As Figures 1 to 30 Collectively shown, this embodiment provides an automatic stacking production line for seedling trays, including a multi-layer bedding machine. There is a tray conveying and translation device upstream of the multi-layer bedding machine, and a seedling cart traction device downstream of the multi-layer bedding machine.

[0076] As Figures 1 to 4 Collectively shown, the tray conveying and translation device includes a first tray conveying mechanism and a tray feeding mechanism. The tray feeding mechanism is located at the discharging end of the first tray conveying mechanism. The first tray conveying mechanism realizes the conveying of the tray 96, and the tray feeding mechanism realizes the orderly feeding of the tray 96 conveyed to the discharging end of the first tray conveying mechanism.

[0077] In one embodiment, as Figure 4 and Figure 5 Collectively shown, the first tray conveying mechanism includes a first conveying frame 1, on which a first conveyor belt 2 driven by a first driving device is wound. A first tray guiding channel for guiding the conveyance of the tray 96 is further provided on the first conveying frame 1.

[0078] In one embodiment, as Figure 4 , Figure 5 and Figure 7 collectively show, a first driving shaft 3, a first guiding shaft and a first driven shaft are rotatably installed on a first conveying frame body 1. There are two first driven shafts, which are respectively located at both ends of the first conveying frame body 1. The first guiding shaft is located between the two first driven shafts, and there are two first guiding shafts arranged side by side. The first driving shaft 3 is located between the two first guiding shafts and is below the first guiding shafts. A first conveyor belt 2 is wound around the first driving shaft 3, the first guiding shafts and the first driven shafts; the first driving device includes a first conveying motor 4 installed on the first conveying frame body 1, and an output shaft of the first conveying motor 4 is in transmission connection with the first driving shaft 3. When the first conveying motor 4 operates, it drives the first driving shaft 3 to rotate, and thus drives the first conveyor belt 2 to operate through the first driving shaft 3, the first guiding shafts and the first driven shafts, so as to realize the conveying of the seedling tray 96 on the first conveyor belt 2.

[0079] In one embodiment, as Figure 4 , Figure 5 and Figure 7 collectively show, first main shaft mounting plates 5 are fixedly installed on both sides of the first conveying frame body 1 correspondingly. A first slide rail 6 is vertically fixedly installed on the first main shaft mounting plate 5. A first slider type bearing seat 7 is slidably installed on the first slide rail 6. The first driving shaft 3 is rotatably installed between two correspondingly arranged first slider type bearing seats 7. A first adjusting screw 8 is further installed on the first main shaft mounting plate 5. An end of the first adjusting screw 8 is connected to the first slider type bearing seat 7. A first motor mounting plate 9 is fixedly installed on the first adjusting screw 8. The first conveying motor 4 is fixedly installed on the first motor mounting plate 9, and an output shaft of the first conveying motor 4 is in transmission connection with one end of the first driving shaft 3. The lifting adjustment of the first driving shaft 3 can be realized through the first adjusting screw 8, and further the tension adjustment of the first conveyor belt 2 can be realized, and the adjustment operation is simple and convenient.

[0080] In one embodiment, as Figure 4 and Figure 5 collectively show, a seedling tray limiting assembly is provided on the first conveying frame body 1. There are two groups of the seedling tray limiting assemblies, and the two groups of seedling tray limiting assemblies are correspondingly arranged on both sides of the first conveying frame body 1 respectively.

[0081] In one embodiment, as Figure 4 and Figure 5As shown together, the tray limiting assembly includes a limiting stop rod 10. The limiting stop rod 10 is fixedly installed on the first conveying frame 1 through a stop rod mounting bracket, and the limiting stop rod 10 is located above the first conveyor belt 2. A first tray guiding channel adapted to the tray 96 is formed between two corresponding limiting stop rods 10. Through the first tray guiding channel, the guiding conveyance of the tray 96 on the first conveyor belt 2 can be realized, ensuring that the conveyed tray 96 will not be displaced.

[0082] In one embodiment, as Figure 4 and Figure 5 As shown together, several stop rod mounting brackets are provided along the length direction of the limiting stop rod 10. Mounting cross beams are fixedly installed on both sides of the first conveying frame 1. The stop rod mounting bracket includes a clamping block fixedly installed on the mounting cross beam. A vertical support shaft is fixedly installed on the clamping block. The top of the vertical support shaft is installed with a horizontal support shaft through a cross fixing block. One end of the horizontal support shaft close to the limiting stop rod 10 is fixedly connected to the limiting stop rod 10. The provided stop rod mounting bracket can realize the adjustment of the limiting stop rod 10, and further realize the adjustment of the first tray guiding channel. The first tray guiding channel can be adaptively adjusted according to the specifications of the tray 96 to be conveyed as needed, so as to meet the guiding conveyance requirements of different specifications of trays 96, and has strong versatility.

[0083] In one embodiment, as Figure 4 、 Figure 6 and Figure 8 As shown together, the tray feeding mechanism includes a first feeding frame 11. A first tray baffle 13 for realizing the limiting and blocking of the tray 96 is fixedly installed on the first feeding frame 11. The first tray baffle 13 is located at the discharging end of the first conveyor belt 2 and is correspondingly arranged with the first conveyor belt 2. A first sliding mounting plate 15 driven by a second driving device is slidably installed on the first feeding frame 11 in the horizontal direction. The first sliding mounting plate 15 is located above the first conveyor belt 2, and a fork 18 driven by a third driving device is rotatably installed on the first sliding mounting plate 15. After the tray 96 is conveyed to the discharging end of the first conveying frame 1, the first tray baffle 13 realizes the positioning and blocking of the tray 96. Then, the second driving device works to drive the first sliding mounting plate 15 to displace, and the fork 18 is used to realize the feeding of the tray 96. After the feeding of one tray 96 is completed, the third driving device works to drive the feeding end of the fork 18 to rise to the avoidance position to realize the avoidance of the fork 18 during displacement for the tray 96. At the same time, the second driving device works to drive the first sliding mounting plate 15 to reset. After the first sliding mounting plate 15 is reset, the third driving device works to drive the feeding end of the fork 18 to descend to the feeding position. Then the second driving device works to drive the first sliding mounting plate 15 to displace, realizing the feeding of the next tray 96, thereby realizing the orderly feeding of the tray 96.

[0084] In one embodiment, asFigure 1 and Figure 2 As shown, an upper shield is fixedly installed on the top of the first conveying frame 11, and the upper shield can protect the hole tray conveying mechanism.

[0085] In one embodiment, if Figure 4 and Figure 6 As shown in common, a fixing plate 12 is fixedly mounted on the first feeding frame 11, and a first strip-shaped mounting hole is opened on the fixing plate 12. The first hole tray baffle 13 is fixedly mounted on the fixing plate 12 by means of a positioning bolt passing through the first strip-shaped mounting hole. The first hole tray baffle 13 can be adjusted by loosening the positioning bolt that fixes the first hole tray baffle 13. After the adjustment is completed, the positioning bolt can be re-tightened. By adjusting the first hole tray baffle 13, it is ensured that the hole tray 96 is effectively positioned and blocked.

[0086] In one embodiment, if Figure 6 and Figure 8 As shown together, the second driving device includes a feeding cylinder 14 fixedly mounted on the top of the first feeding frame 11, the feeding cylinder 14 is arranged along a conveying direction perpendicular to the first cell tray conveying mechanism, and the first sliding mounting plate 15 is fixedly mounted on a slider of the feeding cylinder 14. When the feeding cylinder 14 works, it drives the first sliding mounting plate 15 to move back and forth along its stroke, and the displacement direction of the first sliding mounting plate 15 is the feeding direction of the cell tray 96.

[0087] In one embodiment, if Figure 6 and Figure 8 As shown together, a shift fork mounting rod 17 is fixedly mounted on the first sliding mounting plate 15, and a shift fork 18 is rotatably mounted on the shift fork mounting rod 17, and the shift fork 18 is arranged along the length direction of the shift fork mounting rod 17; the third driving device includes a first telescopic cylinder 16 hingedly mounted on the first sliding mounting plate 15, and the piston shaft end of the first telescopic cylinder 16 is hingedly connected to the connecting end of the shift fork 18. When the first telescopic cylinder 16 works, it can drive the shift fork 18 to move, and realize the conversion of the shift fork 18 between the material shifting position and the avoidance position. When the shift fork 18 is in the material shifting position state, the hole tray 96 can be shifted, and when the shift fork 18 is in the avoidance position state, the hole tray 96 can be avoided.

[0088] In one embodiment, two shift forks 18 are provided, and the two shift forks 18 are respectively located at two ends of the shift fork mounting rod 17 , so as to realize the smooth shifting of the hole tray 96 .

[0089] In one embodiment, if Figure 6 and Figure 8As shown together, the fork 18 includes an integrally formed mounting portion, a connecting end, and a feeding end. The mounting portion is located between the connecting end and the feeding end, and the fork 18 is rotatably mounted on the fork mounting rod 17 through its mounting portion. The end of the piston rod of the first telescopic cylinder 16 is hinged to the connecting end of the fork 18. During operation, when the piston rod of the first telescopic cylinder 16 extends, it drives the fork 18 to move, causing the feeding end of the fork 18 to swing downward. At this time, the fork 18 is in the feeding position state. When the piston rod of the first telescopic cylinder 16 retracts, it drives the fork 18 to move, causing the feeding end of the fork 18 to lift. At this time, the fork 18 is in the avoidance position state.

[0090] As Figures 1 to 3 、As Figures 9 to 24 As shown together, the multi-layer bed feeding machine includes a frame 19. A second tray conveying mechanism, a first tray pushing mechanism, a lifting platform 44, and a second tray pushing mechanism are provided on the frame 19. The second tray conveying mechanism is located downstream of the tray feeding mechanism, and the feeding end of the second tray conveying mechanism extends outside the frame 19 and corresponds to the discharging end of the first tray conveying mechanism. The first tray pushing mechanism is located above the second tray conveying mechanism, and the first tray pushing mechanism corresponds to the discharging end of the second tray conveying mechanism. The lifting platform 44 is located downstream of the first tray pushing mechanism, and the second tray pushing mechanism is located on the lifting platform 44. For this multi-layer bed feeding machine, the tray 96 is conveyed to the lower part of the first tray pushing mechanism through the second tray conveying mechanism and multiple trays 96 are arranged side by side. Through the first tray pushing mechanism, multiple trays 96 conveyed to the discharging end of the second tray conveying mechanism are synchronously pushed, and the trays 96 are pushed onto the lifting platform 44. Through the cooperation of the lifting platform 44 and the second tray pushing mechanism, the trays 96 on the lifting platform 44 can be pushed onto the storage platforms of each layer of the seedling raising cart 97, realizing the automatic feeding of the trays 96 onto the seedling raising cart 97.

[0091] In one embodiment, as Figures 9 to 12 As shown together, the second tray conveying mechanism includes a second conveying frame body 20 fixedly installed on the frame 19. A second conveyor belt 21 driven by a fourth driving device is wound on the second conveying frame body 20. The second conveyor belt 21 is at the same height as the first conveyor belt 2 or is located below the first conveyor belt 2, facilitating the feeding of the trays 96 on the first conveyor belt 2 onto the second conveyor belt 21. When the fourth driving device operates, it can drive the second conveyor belt 21 to convey the trays 96 on the second conveyor belt 21.

[0092] In one embodiment, as Figure 11 and Figure 12As shown together, a second tray baffle 22 for limiting and blocking the tray 96 is fixedly installed on the second conveying frame body 20. The second tray baffle 22 is located at the discharging end of the second conveying frame body 20 and is arranged corresponding to the second conveyor belt 21. The provided second tray baffle 22 can realize the positioning and blocking of the tray 96.

[0093] In one embodiment, as Figure 11 and Figure 12 As shown together, a pushing transition plate 23 is also fixedly installed on one side of the second conveying frame body 20 close to the lifting platform 44. The pushing transition plate 23 is arranged corresponding to the lifting platform 44. With the provided conveying transition plate, when the lifting platform 44 is at the initial height position, that is, when the lifting platform 44 and the second conveyor belt 21 are at the same height position, the conveying transition plate can cover the gap between the second conveyor belt 21 and the lifting platform 44, ensuring that the tray 96 can be smoothly pushed from the second conveyor belt 21 onto the lifting platform 44.

[0094] In one embodiment, as Figures 11 to 14 As shown together, a second driving shaft 24, a second guiding shaft and a second driven shaft are rotatably installed on the second conveying frame body 20. There are two second driven shafts and they are respectively located at both ends of the second conveying frame body 20. The second guiding shaft is located between the two second driven shafts, and there are two second guiding shafts arranged side by side. The second driving shaft 24 is located between the two second guiding shafts and is below the second guiding shafts. The second conveyor belt 21 is wound around the second driving shaft 24, the second guiding shafts and the second driven shafts. The fourth driving device includes a second conveying motor 25 installed on the second conveying frame body 20. The output shaft of the second conveying motor 25 is in transmission connection with the second driving shaft 24. When the second conveying motor 25 works, it drives the second driving shaft 24 to rotate, and thus drives the second conveyor belt 21 to operate through the second driving shaft 24, the second guiding shafts and the second driven shafts, realizing the conveying of the tray 96 on the second conveyor belt 21.

[0095] In one embodiment, as Figures 11 to 14As shown together, second main shaft mounting plates 26 are fixedly installed on both sides of the second conveying frame body 20 correspondingly. A second slide rail 27 is vertically and fixedly installed on the second main shaft mounting plate 26. A second slider type bearing seat 28 is slidably installed on the second slide rail 27. The second driving shaft 24 is rotatably installed between two correspondingly arranged second slider type bearing seats 28. A second adjusting screw 29 is further installed on the second main shaft mounting plate 26. The end of the second adjusting screw 29 is connected to the second slider type bearing seat 28. A second motor mounting plate 30 is fixedly installed on the second adjusting screw 29. The second conveying motor 25 is fixedly installed on the second motor mounting plate 30, and the output shaft of the second conveying motor 25 is in driving connection with one end of the second driving shaft 24. The lifting adjustment of the second driving shaft 24 can be realized through the second adjusting screw 29, and further the tension adjustment of the second conveyor belt 21 can be realized, and the adjustment operation is simple and convenient.

[0096] In one embodiment, as Figure 12 shown, strip-shaped mounting holes are formed at both ends of the second tray baffle 22. The second tray baffle 22 is fixedly installed on the second conveying frame body 20 by positioning bolts passing through the strip-shaped mounting holes. Loosen the positioning bolts fixing the second tray baffle 22, the adjustment of the second tray baffle 22 can be realized. After the adjustment is completed, tighten the positioning bolts again. Through the adjustment of the second tray baffle 22, the effective positioning and blocking of the tray 96 can be ensured, so that the tray 96 stops accurately at the pushing position, which is convenient for the first tray pushing mechanism to accurately push the tray 96.

[0097] In one embodiment, as Figures 9 to 11 、 Figure 15 and Figure 16 shown together, the first tray pushing mechanism includes a translation frame 31 slidably installed on the frame 19 in the horizontal direction and driven by a fifth driving device. A lifting frame 39 driven by a sixth driving device is slidably installed on the translation frame 31 in the vertical direction. A first tray push plate 43 for pushing the tray 96 is fixedly installed at the bottom of the lifting frame 39. The first tray push plate 43 is located above the second conveyor belt 21. The sixth driving device can drive the first tray push plate 43 to lift and displace, and the fifth driving device can drive the first tray push plate 43 to horizontally displace.

[0098] In one embodiment, as Figure 11 、 Figure 15 and Figure 16 shown together, to realize the sliding installation of the translation frame 31 on the frame 19 and ensure the smooth sliding of the translation frame 31, a first guide rail 32 is fixedly installed on the frame 19 in the horizontal direction. A first sliding seat 33 slidably installed on the first guide rail 32 is fixedly connected to the translation frame 31. The translation frame 31 is slidably installed on the frame 19 through the first guide rail 32 and the first sliding seat 33.

[0099] In one embodiment, as Figure 11 , Figure 15 and Figure 16 collectively show, the fifth driving device includes a first pushing motor 34 fixedly installed on the translation frame 31. The output shaft of the first pushing motor 34 is drivingly connected to a translation transmission shaft 35. The translation transmission shaft 35 is rotatably installed on the translation frame 31, and a gear 36 is installed at the end of the translation transmission shaft 35. A rack 37 parallel to the first guide rail 32 is fixedly installed on the frame 19. The gear 36 and the rack 37 are correspondingly arranged, and the gear 36 meshes with the rack 37. When the first pushing motor 34 works, it drives the gear 36 to rotate through the translation transmission shaft 35. Since the gear 36 meshes with the rack 37, the rotation of the gear 36 drives the translation frame 31 to displace, thereby driving the first tray pushing plate 43 to horizontally displace.

[0100] In one embodiment, as Figure 11 and Figure 15 collectively show, there are two racks 37. The translation frame 31 is located between the two racks 37. There are two gears 36, and the two gears 36 are respectively installed at the ends of the translation transmission shaft 35, and the gears 36 are respectively located above the racks 37 and mesh with the racks 37. The gears 36 being respectively located above the racks 37 can realize the support of the translation frame 31. The translation frame 31 being located between the two racks 37 can make the driving of the translation frame 31 stable and without deviation or shaking.

[0101] In one embodiment, as Figure 11 and Figure 15 collectively show, two first travel switches 38 for detecting the translation frame 31 are fixedly installed on the frame 19. There are two corresponding first travel switches 38, and the translation frame 31 is located between the two first travel switches 38. The provided first travel switches 38 can realize the position detection of the translation frame 31, ensuring that the translation frame 31 can smoothly slide and displace within the set stroke and accurately stop.

[0102] In one embodiment, as Figure 11 , Figure 15 , Figure 16 and Figure 21 collectively show, to realize the sliding installation of the lifting frame 39 on the translation frame 31 and ensure the smooth lifting of the lifting frame 39, a second sliding seat 40 is fixedly installed on the translation frame 31. Second guide rails 41 corresponding to the second sliding seat 40 are vertically fixedly installed on the lifting frame 39. The second guide rails 41 are slidably connected to the second sliding seat 40, and the lifting frame 39 is slidably installed on the translation frame 31 through the second guide rails 41 and the second sliding seat 40.

[0103] In one embodiment, as Figure 11 , Figure 15, Figure 16 and Figure 21 As commonly shown in Figure 16 and Figure 21 , the sixth driving device includes a first lifting cylinder 42 hingedly mounted on the translation frame 31. The end of the piston rod of the first lifting cylinder 42 is hingedly connected to the lifting frame 39. When the first lifting cylinder 42 works, it can drive the lifting frame 39 to rise or fall, so as to realize the lifting drive of the first tray pushing plate 43.

[0104] In one embodiment, as Figure 11 、 Figure 15 and Figure 16 As commonly shown in Figure 11 , Figure 15 and Figure 16 , there are two corresponding first lifting cylinders 42, and the two first lifting cylinders 42 are respectively located at both ends of the translation frame 31, so that the lifting drive of the lifting frame 39 is stable and reliable.

[0105] In one embodiment, as Figure 9 、 Figure 10 、 Figures 17 to 19 As commonly shown in Figure 9 , Figure 10 and Figures 17 to 19 , the lifting platform 44 is slidably mounted on the machine frame 19 in the vertical direction and is driven by a seventh driving device. The seventh driving device can drive the lifting platform 44 to rise or fall. A second tray guiding channel for realizing the guiding and conveying of the tray 96 is provided on the lifting platform 44, and the guiding and conveying of the tray 96 on the lifting platform 44 can be realized through the second tray guiding channel.

[0106] In one embodiment, as Figure 17 and Figure 19 As commonly shown in Figure 17 and Figure 19 , an origin detection piece 45 is fixedly mounted on the machine frame 19, and a first photoelectric sensor 46 for detecting the origin detection piece 45 is fixedly mounted on the lifting platform 44. When the first photoelectric sensor 46 and the origin detection piece 45 are in a facing state, the lifting platform 44 and the second conveyor belt 21 are at the same height; when the seventh driving device works to drive the lifting platform 44 to rise or fall, when the first photoelectric sensor 46 detects the origin detection piece 45, the first photoelectric sensor 46 feeds back the detection signal to the control system, and the control system controls the seventh driving device to stop working. At this time, the lifting platform 44 stops at the initial height position, that is, the lifting platform 44 and the second conveyor belt 21 are at the same height position, and the tray 96 on the second conveyor belt 21 can be pushed onto the lifting platform 44 by the first tray pushing mechanism.

[0107] In one embodiment, as Figure 17 and Figure 19As shown in common, the lifting platform 44 is also fixedly installed with a second photoelectric sensor 47 for detecting the storage platforms on each layer of the seedling raising vehicle 97 at one end thereof close to the traction device of the seedling raising vehicle 97, and the second photoelectric sensor 47 is located at the bottom of the lifting platform 44. The seventh driving device works to drive the lifting platform 44 to rise or fall. When the lifting platform 44 moves to the set height and the second photoelectric sensor 47 detects the current empty storage platform signal on the seedling raising vehicle 97, the second photoelectric sensor 47 feeds back the detection signal to the control system, and the control system controls the seventh driving device to stop working. At this time, the lifting platform 44 is at the same height as the storage platform where the plug tray 96 is to be placed, and the plug tray 96 on the lifting platform 44 can be pushed to the storage platform of the seedling raising vehicle 97 by the second plug tray pushing mechanism.

[0108] In one embodiment, if Figure 17 and Figure 18 As shown together, in order to realize the sliding installation of the lifting platform 44 on the frame 19 and ensure the smooth lifting of the lifting platform 44, a third guide rail 48 is fixedly installed on the frame 19 along the vertical direction, and a third slide 49 corresponding to the third guide rail 48 is fixedly installed on the lifting platform 44. The third slide 49 is respectively slidably connected to the corresponding third guide rail 48, and the lifting platform 44 is slidably installed on the frame 19 through the third guide rail 48 and the third slide 49.

[0109] In one embodiment, if Figures 1 to 3 , Figure 17 and Figure 18 As shown in the figure, the seventh driving device includes a lifting motor 50 fixedly mounted on the top of the frame 19, and a lifting transmission shaft 51 is also rotatably mounted on the top of the frame 19. The output shaft of the lifting motor 50 is connected to one end of the lifting transmission shaft 51, and driving sprockets 52 are installed at both ends of the lifting transmission shaft 51. The bottom of the frame 19 is rotatably mounted with driven sprockets 53 respectively arranged corresponding to the driving sprockets 52, and a transmission chain 54 is wound between the corresponding driven sprockets 53 and the driving sprockets 52, and the driven sprockets 53 are connected to the driving sprockets 52 through the transmission chain 54. Chain fixing seats 55 corresponding to the transmission chain 54 are fixedly mounted on the lifting platform 44, and the lifting platform 44 is fixedly connected to one side of the transmission chain 54 through the chain fixing seat 55. When the lifting motor 50 works, it drives the lifting transmission shaft 51 to rotate, and then drives the lifting platform 44 to rise or fall through the driving sprocket 52, the driven sprocket 53 and the transmission chain 54, so as to realize the displacement of the lifting platform 44 in the vertical direction.

[0110] In one embodiment, if Figures 17 to 19As commonly shown, two corresponding limiting baffles 56 are fixedly installed on the lifting platform 44 in the horizontal direction. A second tray guiding channel is formed between the two limiting baffles 56. The provided second tray guiding channel can guide and limit the tray 96, ensure the smooth pushing of the tray 96, and enable the tray 96 to accurately enter the seedling raising cart 97 along the established displacement channel.

[0111] In one embodiment, as Figure 17 、 Figure 18 、 Figure 20 、 Figures 22 to 24 As commonly shown, the second tray pushing mechanism includes a pushing frame body 60 slidably installed on the lifting platform 44 along the length direction of the second tray guiding channel and driven by an eighth driving device. A second tray pushing plate 69 driven by a ninth driving device is provided on the pushing frame body 60. An anti-warping baffle 70 is fixedly installed on one side of the second tray pushing plate 69 close to the seedling raising cart traction device. When the second tray pushing plate 69 is lifted to the feeding position state, a feeding gap for the tray 96 to pass through is provided between the second tray pushing plate 69 and the lifting platform 44. The ninth driving device can drive the second tray pushing plate 69 to lift and displace, and the eighth driving device can drive the second tray pushing plate 69 to achieve horizontal displacement along the length direction of the second tray guiding channel.

[0112] In one embodiment, as Figure 17 、 Figure 18 、 Figure 20 、 Figure 22 and Figure 23 As commonly shown, to realize the sliding installation of the pushing frame body 60 on the lifting platform 44, a mounting frame body 57 is fixedly installed on the lifting platform 44. A fourth guide rail 58 is fixedly installed on the mounting frame body 57 along the length direction of the second tray guiding channel. A fourth sliding seat 59 is slidably installed on the fourth guide rail 58. One end of the pushing frame body 60 close to the mounting frame body 57 is fixedly connected to the fourth sliding seat 59. A support roller 61 is rotatably installed at the end of the pushing frame body 60 far from the mounting frame body 57. The pushing frame body 60 is slidably installed on the mounting frame body 57 through the fourth guide rail 58 and the fourth sliding seat 59.

[0113] In one embodiment, as Figure 17 、 Figure 18 、 Figure 20 、 Figure 22 and Figure 23As commonly shown, the eighth driving device includes a second pushing motor 62 fixedly installed on the mounting frame 57. One end of the mounting frame 57 is rotatably installed with a first driving pulley 63. The output shaft of the second pushing motor 62 is in transmission connection with the first driving pulley 63. The other end of the mounting frame 57 is rotatably installed with a first driven pulley 64 corresponding to the first driving pulley 63. A pushing synchronous belt 65 is wound between the first driven pulley 64 and the first driving pulley 63, and the first driven pulley 64 is in transmission connection with the first driving pulley 63 through the pushing synchronous belt 65. One end of the pushing frame 60 close to the mounting frame 57 is fixedly connected to one side of the pushing synchronous belt 65. When the second pushing motor 62 works, it drives the first driving pulley 63 to rotate, and then drives the pushing frame 60 to displace through the first driving pulley 63, the first driven pulley 64 and the pushing synchronous belt 65.

[0114] In one embodiment, as Figure 17 、 Figure 18 、 Figure 20 、 Figure 22 and Figure 23 commonly shown, two second travel switches 66 are fixedly installed on the mounting frame 57. The two second travel switches 66 are respectively arranged corresponding to the two end parts of the mounting frame 57. The pushing frame 60 is located between the two second travel switches 66, and a limit detection piece 67 corresponding to the two second travel switches 66 is fixedly installed on the pushing frame 60. The provided second travel switches 66 and the limit detection piece 67 can realize the position detection of the pushing frame 60, ensuring that the pushing frame 60 can slide and displace smoothly within the set stroke and stop precisely.

[0115] In one embodiment, as Figure 17 、 Figure 18 、 Figure 20 and Figure 24 commonly shown, the ninth driving device includes a second lifting cylinder 68 fixedly installed on the pushing frame 60. The piston shaft end of the second lifting cylinder 68 is fixedly connected to the second tray pushing plate 69. When the second lifting cylinder 68 works, it drives the second tray pushing plate 69 to rise or fall. When the second tray pushing plate 69 descends to the pushing position, the second tray pushing plate 69 can abut against one end of the tray 96. When the second tray pushing plate 69 displaces, the pushing of the tray 96 is realized. After the second lifting cylinder 68 drives the second tray pushing plate 69 to lift, there is a feeding gap for the tray 96 to pass between the second tray pushing plate 69 and the lifting platform 44. The next batch of trays 96 can be pushed onto the lifting platform 44 through the first tray pushing mechanism to complete the feeding of the trays 96 on the lifting platform 44.

[0116] In one embodiment, as Figure 20 and Figure 24As shown together, a third strip-shaped mounting hole is provided on the anti-warping baffle 70, and the anti-warping baffle 70 is fixedly mounted on the second tray pushing plate 69 by positioning bolts passing through the third strip-shaped mounting hole. The provided anti-warping baffle 70 can press the end of the tray 96 when the second tray pushing plate 69 descends to the pushing position, preventing the tray 96 from warping when the tray 96 is pushed. In addition, according to the specifications of the tray 96, by loosening the positioning bolts fixing the anti-warping baffle 70, the adjustment of the anti-warping baffle 70 can be realized. After the adjustment is completed, just tighten the positioning bolts again. The adjustment operation is not only simple and convenient, but also can be adaptively adjusted according to different specifications of the tray 96, with strong versatility.

[0117] In one embodiment, as Figures 17 to 19 As shown together, a turnover and overlapping plate 71 driven by a tenth driving device is also rotatably mounted at one end of the lifting platform 44 close to the seedling-raising vehicle traction device. When the turnover and overlapping plate 71 is in the overlapping state, the end of the turnover and overlapping plate 71 close to the lifting platform 44 is flush with the lifting platform 44.

[0118] In one embodiment, to realize the installation of the turnover and overlapping plate 71 on the lifting platform 44, a rotating shaft is rotatably mounted at one end of the lifting platform 44 close to the seedling-raising vehicle traction device, and the turnover and overlapping plate 71 is fixedly connected to the rotating shaft. The turnover and overlapping plate 71 is rotatably mounted on the lifting platform 44 through the rotating shaft.

[0119] In one embodiment, as Figures 17 to 19 As shown together, the tenth driving device includes a second telescopic cylinder 72 hinged to the lifting platform 44. The second telescopic cylinder 72 is located outside the second tray guiding channel, and the end of the piston rod of the second telescopic cylinder 72 is connected to the turnover and overlapping plate 71. When the second telescopic cylinder 72 works, it can drive the turnover and overlapping plate 71 to turn over. When the piston rod of the second telescopic cylinder 72 extends, it drives the turnover and overlapping plate 71 to overlap on the seedling-raising vehicle 97. After the turnover and overlapping plate 71 overlaps on the placement table of the seedling-raising vehicle 97, the turnover and overlapping plate 71 can cover the gap between the frame 19 and the seedling-raising vehicle 97, ensuring that the tray 96 can be smoothly pushed onto the seedling-raising vehicle 97. After the tray 96 is pushed, the piston rod of the second telescopic cylinder 72 retracts, driving the turnover and overlapping plate 71 to reset. The reset turnover and overlapping plate 71 can limit and block the tray 96 when the next batch of trays 96 are pushed onto the lifting platform 44, preventing the tray 96 from slipping off the lifting platform 44.

[0120] In one embodiment, a hinged connecting plate is fixedly mounted at the end of the turnover and overlapping plate 71, and the end of the piston rod of the second telescopic cylinder 72 is hinged to the hinged connecting plate. An avoidance notch corresponding to the hinged connecting plate is provided on the lifting platform 44, and the avoidance notch realizes the avoidance of the hinged connecting plate.

[0121] In one embodiment, asFigure 1 As shown, a protective net 73 is provided around the frame 19. The protective net 73 can protect the equipment inside the frame 19 from external environmental interference and damage, thus ensuring the normal operation of the equipment and providing a relatively enclosed and safe working environment for the equipment.

[0122] In one embodiment, as Figures 1 to 3 , Figures 4 to 6 , Figure 9 , Figure 10 , Figure 17 and Figure 18 collectively shown, at the bottom corner positions of the first conveying frame body 1, first adjusting support feet 74 are installed. Through the first adjusting support feet 74, the height adjustment of the first conveying frame body 1 can be realized. At the bottom corner positions of the first feeding frame body 11, second adjusting support feet 75 are installed. Through the second adjusting support feet 75, the height adjustment of the first feeding frame body 11 can be realized. At the bottom corner positions of the frame 19, third adjusting support feet 76 are installed. Through the third adjusting support feet 76, the height adjustment of the frame 19 can be realized. By adjusting the heights of the first conveying frame body 1, the first feeding frame body 11 and the frame 19, an effective cooperation among the first tray conveying mechanism, the tray feeding mechanism and the second tray conveying mechanism can be realized, facilitating the accurate docking of upstream and downstream processes.

[0123] As Figures 1 to 3 , Figures 25 to 28 collectively shown, the seedling-raising cart traction device includes tracks 77, a seedling-raising cart feeding mechanism and a seedling-raising cart blocking mechanism. There are two corresponding tracks 77, and a seedling-raising cart guiding channel adapted to the seedling-raising cart 97 is provided between the two tracks 77. The seedling-raising cart feeding mechanism is located on one side of the end of one of the tracks 77, and the seedling-raising cart blocking mechanism is located at the end of the other track 77.

[0124] In one embodiment, as Figures 25 to 27 collectively shown, a number of limit rollers 78 are evenly provided along the length direction of the tracks 77. The number of limit rollers 78 are respectively located on the opposite sides of the two tracks 77, and a seedling-raising cart guiding channel adapted to the seedling-raising cart 97 is formed between the number of limit rollers 78. The seedling-raising cart guiding channel formed by the number of limit rollers 78 can realize the accurate guiding and conveying of the seedling-raising cart 97, and the limit rollers 78 are in rolling contact with the seedling-raising cart 97, with small frictional resistance and no wear or scratch on the seedling-raising cart 97.

[0125] In one embodiment, as Figures 25 to 27 collectively shown, a number of adjusting support seats 79 are provided along the length direction of the tracks 77. Through the adjusting support seats 79, the height adjustment of the tracks 77 can be realized to meet the guiding and conveying of different specifications of seedling-raising carts 97, with strong versatility.

[0126] In one embodiment, as Figures 25 to 27As shown in the figure, the ends of the track 77 are all provided with an integrally formed bending portion 7701, and a trumpet-shaped seedling raising vehicle guide opening is formed between the bending portions 7701 corresponding to the two tracks 77. The seedling raising vehicle guide opening can guide the seedling raising vehicle 97, ensuring that the seedling raising vehicle 97 can smoothly enter the seedling raising vehicle guide channel.

[0127] In one embodiment, if Figures 25 to 30 As shown together, the seedling carriage conveying mechanism and the seedling carriage blocking mechanism are respectively located at the same direction ends of the two tracks 77; the seedling carriage conveying mechanism includes a second conveying frame 80 located on one side of the track 77, and a second sliding mounting plate 81 driven by an eleventh driving device is slidably installed on the second conveying frame 80 along the length direction of the guide channel of the seedling carriage, and a shift block 88 is rotatably installed on the second sliding mounting plate 81, and the shift block 88 has a conveying end extending to the guide channel of the seedling carriage. An elastic reset member and a stop block 92 are also provided on the second sliding mounting plate 81, and the elastic reset member is connected to the shift block 88, and the stop block 92 is fixedly installed on the second sliding mounting plate 81, and under the action of the elastic reset member, the shift block 88 is set against the stop block 92.

[0128] In one embodiment, if Figures 28 to 30 As shown together, a cylindrical pin 87 is fixedly installed on the second sliding mounting plate 81, and a mounting hole compatible with the cylindrical pin 87 is opened in the shift block 88, and the mounting hole is located between the shifting end and the connecting end of the shift block 88, and the shift block 88 is rotatably installed on the second sliding mounting plate 81 through the cylindrical pin 87 and the mounting hole, and a connecting column 89 is fixedly installed on the connecting end of the shift block 88, and a fixed column 90 is also fixedly installed on the second sliding mounting plate 81, and the elastic reset member is a tension spring 91, and the tension spring 91 is located between the connecting column 89 and the fixed column 90, and the two ends of the tension spring 91 are respectively connected to the connecting column 89 and the fixed column 90, and the stop block 92 is located between the connecting end of the shift block 88 and the fixed column 90, and under the action of the tension spring 91, the connecting end of the shift block 88 abuts against the stop block 92. The mounting structure of the shift block 88 is provided so that when the second sliding mounting plate 81 is displaced along the conveying direction of the seedling trolley 97, the connecting end of the shift block 88 abuts against the stop block 92, and the shift block 88 maintains the sending state to realize the sending of the seedling trolley 97, and the seedling trolley 97 is moved. When the second sliding mounting plate 81 is reset, that is, when the second sliding mounting plate 81 is displaced in the direction opposite to the conveying direction of the seedling trolley 97, the shift block 88 can realize automatic swinging to avoid the seedling trolley 97 after contacting the seedling trolley 97, ensuring that the shift block 88 can be reset to the initial position. The setting of the tension spring 91 can always give a force to the shift block 88, ensuring that the shift block 88 can always maintain the sending state of the connecting end abutting against the stop block 92 without being affected by external force.

[0129] In one embodiment, if Figures 28 to 30As shown together, to achieve the sliding installation of the second sliding mounting plate 81 on the second feeding frame 80, a fifth guide rail 82 is fixedly installed on the second feeding frame 80 along the length direction of the guiding channel of the seedling-raising cart. A fifth sliding seat is slidably installed on the fifth guide rail 82, and the fifth sliding seat is fixedly connected to the second sliding mounting plate 81. The second sliding mounting plate 81 is slidably installed on the second feeding frame 80 through the fifth guide rail 82 and the fifth sliding seat.

[0130] In one embodiment, as Figure 25 , Figure 26 , Figures 28 to 30 As shown together, the eleventh driving device includes a feeding motor 83 fixedly installed on the second feeding frame 80. A second driving pulley 84 is rotatably installed at one end of the second feeding frame 80. The output shaft of the feeding motor 83 is in transmission connection with the second driving pulley 84. A second driven pulley 85 corresponding to the second driving pulley 84 is rotatably installed at the other end of the second feeding frame 80. A feeding synchronous belt 86 is wound between the second driven pulley 85 and the second driving pulley 84. The second driven pulley 85 is in transmission connection with the second driving pulley 84 through the feeding synchronous belt 86. The second sliding mounting plate 81 is fixedly connected to one side of the feeding synchronous belt 86. When the feeding motor 83 works, it drives the second driving pulley 84 to rotate, and the feeding synchronous belt 86 is rotated through the second driving pulley 84 and the second driven pulley 85, thereby driving the second sliding mounting plate 81 to slide and displace.

[0131] In one embodiment, as Figure 25 , Figure 26 , Figures 28 to 30 As shown together, third stroke switches 93 are fixedly installed at both ends of the second feeding frame 80. The third stroke switches 93 can detect the second sliding mounting plate 81 and feed back the detection signal to the control system in real time. The control system controls the operation of the eleventh driving device, thereby realizing the orderly feeding of the seedling-raising cart 97.

[0132] In one embodiment, as Figure 26 , Figure 28 and Figure 29 As shown together, a plurality of supporting brackets 94 are provided below the second feeding frame 80. The plurality of supporting brackets 94 are arranged along the length direction of the second feeding frame 80, and the second feeding frame 80 is installed on the supporting brackets 94. Through the supporting brackets 94, the support and height adjustment of the second feeding frame 80 can be realized, so as to meet the feeding requirements for different specifications of the seedling-raising cart 97.

[0133] In one embodiment, as Figures 25 to 27 As shown together, the seedling-raising cart blocking mechanism includes a blocking cylinder 95. The blocking cylinder 95 is fixedly installed on the track 77 and is arranged at the end of the blocking cylinder 95 close to the track 77.

[0134] The working process of the automatic seedling tray stacking production line is as follows:

[0135] The first driving device works to drive the first conveyor belt 2 to convey the hole tray 96, and the first hole tray guide channel is used to guide and limit the hole tray 96. After the hole tray 96 is conveyed to the unloading end of the first conveying frame 1, the first hole tray baffle 13 realizes the positioning and blocking of the hole tray 96. Then, the second driving device works to drive the first sliding mounting plate 15 to move, and the hole tray 96 is conveyed to the second conveyor belt 21 through the fork 18. After completing the conveying of one hole tray 96, the third driving device works to drive the fork 18 to move the hole tray 96. The sending end of 18 is lifted to the avoidance position to achieve the avoidance of the hole tray 96 when the fork 18 is displaced. At the same time, the second driving device works to drive the first sliding mounting plate 15 to reset. After the first sliding mounting plate 15 is reset, the third driving device works to drive the sending end of the fork 18 to descend to the sending position. Then the second driving device works to drive the first sliding mounting plate 15 to shift to achieve the sending of the next hole tray 96, thereby realizing the automatic transportation and orderly sending of the hole trays 96, and sending the hole trays 96 one by one in an orderly manner to the second conveyor belt 21.

[0136] While the hole tray conveying translation device realizes automatic conveying and orderly delivery of the hole tray 96, the fourth driving device works to drive the second conveyor belt 21 to realize the conveying of the hole tray 96 on the second conveyor belt 21. After the hole tray 96 is conveyed to the unloading end of the second conveying frame 20, the second hole tray baffle 22 realizes the positioning and blocking of the hole tray 96, and after the next hole tray 96 conveyed abuts against the previous hole tray 96, the previous hole tray 96 realizes the positioning and blocking of the next hole tray 96. In this way, along the conveying direction of the hole tray 96 of the second conveyor belt 21, the hole trays 96 can be arranged side by side in sequence. When the number of arranged hole trays 96 reaches the set value , the sixth driving device works to drive the lifting frame 39 to descend, realizing the downward displacement of the first hole tray push plate 43, and then, the fifth driving device works to drive the translation frame 31 and the lifting frame 39 to displace in the direction close to the lifting platform 44, and realizes the synchronous pushing of multiple hole trays 96 in parallel through the first hole tray push plate 43, and pushes a row of hole trays 96 onto the lifting platform 44, and then, the sixth driving device works to drive the lifting frame 39 to rise and reset, and at the same time, the fifth driving device works to drive the translation frame 31 to reset, thereby realizing the resetting of the first hole tray push plate 43, so as to realize the pushing of the next batch of hole trays 96.

[0137] At the same time as the first plug tray pushing mechanism is reset, the seventh drive device works to drive the lifting platform 44 to rise or descend to the set height, so that the lifting platform 44 and the empty layer storage table currently corresponding to the seedling car 97 are at the same height, and then the tenth drive device works to drive the flip lap plate 71 to be placed on the current storage table, and then the ninth drive device works to drive the second plug tray pushing plate 69 to descend to the pushing position, and finally, the eighth drive device works to drive the pushing frame 60 to move, and under the guidance of the second plug tray guide channel, the plug tray 96 on the lifting platform 44 is pushed to the storage table of the seedling car 97 through the second plug tray pushing plate 69; after completing the loading of the plug tray 96 on one layer of the storage table, the tenth drive device works to drive the flip lap plate 71 to reset, and then the seventh drive device The device works to drive the lifting platform 44 to move to the initial height position. While the lifting platform 44 is reset, the ninth driving device works to drive the second hole tray push plate 69 to rise and reset. The eighth driving device works to drive the pushing frame 60 to reset. When the lifting platform 44 reaches the initial height position, the second hole tray push plate 69 is also reset to the feeding position. At this time, the lifting platform 44 and the second conveyor belt 21 are at the same height, and there is a feeding gap between the second hole tray push plate 69 and the lifting platform 44 for the hole tray 96 to pass through. The next batch of hole trays 96 can be pushed onto the lifting platform 44 through the first hole tray pushing mechanism. Repeat the above steps to push the next batch of hole trays 96 to the next storage table of the seedling raising vehicle 97. This is repeated to realize automatic loading of the hole trays 96 on the seedling raising vehicle 97.

[0138] After the plug tray of a seedling raising vehicle is loaded with materials, the blocking cylinder 95 works to release the blocking state of the current seedling raising vehicle 97. Then, the eleventh driving device works to drive the second sliding mounting plate 81 to move in the opposite direction of the conveying of the seedling raising vehicle 97. The shifting block 88 will automatically avoid the front end of the next seedling raising vehicle 97 when it contacts it. After the shifting block 88 automatically resets, the eleventh driving device works to drive the second sliding mounting plate 81 to move in the length direction of the guide channel of the seedling raising vehicle. The shifting block 88 The next seedling raising cart 97 is pressed against and moved toward the material position on the plug tray. When the previous seedling raising cart 97 filled with plug trays 96 passes the material position on the plug tray, the blocking cylinder 95 is reset to the blocking state to achieve the positioning and blocking of the next seedling raising cart 97. When the next seedling raising cart 97 moves to the material position on the plug tray, the shifting block 88 cooperates with the blocking cylinder 95 to achieve the positioning of the seedling raising cart 97 at the material position on the plug tray, and the plug tray of the next seedling raising cart 97 can be loaded, and this process is repeated.

[0139] The automatic stacking production line for seedling-raising trays based on the above structure realizes the automatic conveying of the trays 96 through the first tray conveying mechanism, realizes the orderly feeding of the trays 96 conveyed to the discharging end of the first tray conveying mechanism through the tray feeding mechanism, orderly feeds the trays 96 to the second tray conveying mechanism, conveys the trays 96 to the lower part of the first tray pushing mechanism through the second tray conveying mechanism and realizes the side-by-side placement of multiple trays 96, realizes the synchronous pushing of multiple trays 96 conveyed to the discharging end of the second tray conveying mechanism through the first tray pushing mechanism, pushes the trays 96 to the lifting platform 44, and through the cooperation of the lifting platform 44 and the second tray pushing mechanism, pushes the trays 96 on the lifting platform 44 to the storage platforms of each layer of the seedling-raising cart 97, realizes the automatic loading of the trays 96 on the seedling-raising cart 97, and through the cooperation of the seedling-raising cart feeding mechanism and the seedling-raising cart blocking mechanism, realizes the automatic feeding of the seedling-raising cart 97, and orderly feeds multiple connected seedling-raising carts 97 to the tray loading position. In this way, the automatic conveying of the trays 96, the orderly feeding of a single tray 96, the synchronous pushing of multiple trays 96, the automatic placement of the trays 96 on the storage platforms of each layer of the seedling-raising cart 97, and the automatic feeding of the seedling-raising cart 97 are realized, so as to realize the automated assembly line operation of sequentially placing the trays 96 on the seedling-raising cart 97.

[0140] Through this automatic stacking production line for seedling-raising trays, the sequential automatic stacking of the trays 96 on each seedling-raising cart 97 can be realized, and the feeding operation of the trays 96 on the seedling-raising cart 97 is efficient and orderly. Compared with the traditional working method of manually carrying and placing the trays 96, the degree of automation is high, effectively replacing the manual labor force. Not only the labor cost is greatly reduced, but also the working efficiency is greatly improved, meeting the use requirements of the factory seedling-raising for the turnover and transportation of the trays 96.

[0141] It should be understood that the use of these embodiments is only for illustrating the present invention and is not intended to limit the protection scope of the present invention. In addition, it should also be understood that after reading the technical content of the present invention, those skilled in the art can make various changes, modifications and / or variations to the present invention, and all these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A seedling tray automatic stacking production line, characterized in that: It comprises a multi-layer bed-entering machine, wherein a plug tray conveying and translating device is provided upstream of the multi-layer bed-entering machine, and a seedling raising vehicle traction device is provided downstream of the multi-layer bed-entering machine; The cell tray conveying and translating device comprises a first cell tray conveying mechanism and a cell tray shifting mechanism, wherein the cell tray shifting mechanism is located at a discharge end of the first cell tray conveying mechanism; The hole tray conveying mechanism comprises a first conveying frame, on which a first hole tray baffle for realizing hole tray limit blocking is fixedly installed, on which a first sliding mounting plate driven by a second driving device is slidably mounted in a horizontal direction, on which a shift fork driven by a third driving device is rotatably mounted; The third driving device comprises a first telescopic cylinder hingedly mounted on the first sliding mounting plate, a shift fork mounting rod is fixedly mounted on the first sliding mounting plate, the shift fork comprises an integrally formed mounting portion, a connecting end and a shifting end, the mounting portion is located between the connecting end and the shifting end, and the shift fork is rotatably mounted on the shift fork mounting rod through its mounting portion, and the piston shaft end of the first telescopic cylinder is hingedly connected to the connecting end of the shift fork; The multi-layer bed feeding machine includes a frame, on which a second hole tray conveying mechanism, a first hole tray pushing mechanism, a lifting platform and a second hole tray pushing mechanism are provided, the second hole tray conveying mechanism is located downstream of the hole tray dialing mechanism, and the loading end of the second hole tray conveying mechanism extends outside the frame and corresponds to the unloading end of the first hole tray conveying mechanism, the first hole tray pushing mechanism is located above the second hole tray conveying mechanism, and the first hole tray pushing mechanism corresponds to the unloading end of the second hole tray conveying mechanism, the lifting platform is located downstream of the first hole tray pushing mechanism, and the second hole tray pushing mechanism is located on the lifting platform; The lifting platform is provided with a second plug tray guide channel for realizing plug tray guiding and conveying, the second plug tray pushing mechanism comprises a pushing frame body slidably installed on the lifting platform along the length direction of the second plug tray guide channel and driven by an eighth driving device, the pushing frame body is provided with a second plug tray pushing plate driven by a ninth driving device, the second plug tray pushing plate is fixedly installed with an anti-warping baffle plate on one side close to the traction device of the seedling raising vehicle, and when the second plug tray pushing plate is lifted to the feeding position, there is a feeding gap for the plug tray to pass through between the second plug tray pushing plate and the lifting platform; The end of the lifting platform close to the traction device of the seedling raising vehicle is also rotatably installed with a flip lap plate driven by a tenth driving device, and the end of the lifting platform close to the traction device of the seedling raising vehicle is rotatably installed with a rotating shaft, the flip lap plate is fixedly connected to the rotating shaft, and the flip lap plate is rotatably installed on the lifting platform through the rotating shaft. When the flip lap plate is in a lapped state, the end of the flip lap plate close to the lifting platform is flush with the lifting platform; The seedling vehicle traction device includes a track, a seedling vehicle driving mechanism and a seedling vehicle blocking mechanism. Two tracks are correspondingly provided, and a seedling vehicle guide channel compatible with the seedling vehicle is provided between the two tracks. The seedling vehicle driving mechanism is located on one side of the end of one of the tracks, and the seedling vehicle blocking mechanism is located at the end of the other track.

2. The automatic seedling tray stacking production line according to claim 1 is characterized in that: The first cell tray conveying mechanism comprises a first conveying frame body, a first conveying belt driven by a first driving device is mounted on the first conveying frame body and wound around the first conveying frame body, and a first cell tray guiding channel for realizing cell tray guided conveying is also provided on the first conveying frame body.

3. The automatic seedling tray stacking production line according to claim 2 is characterized in that: The first hole tray baffle is located at the unloading end of the first conveyor belt and is arranged corresponding to the first conveyor belt, and the first sliding mounting plate is located above the first conveyor belt.

4. The automatic seedling tray stacking production line according to claim 3 is characterized in that: The second hole tray conveying mechanism comprises a second conveying frame body fixedly mounted on the frame, a second conveying belt driven by a fourth driving device is wound around the second conveying frame body, and the second conveying belt is at the same height as the first conveying belt or is located below the first conveying belt; A second hole tray baffle for realizing hole tray limit blocking is fixedly installed on the second conveying frame body, the second hole tray baffle is located at the unloading end of the second conveying frame body and is arranged corresponding to the second conveyor belt, and a push transition plate is also fixedly installed on the side of the second conveying frame body close to the lifting platform, and the push transition plate is arranged corresponding to the lifting platform.

5. The automatic seedling tray stacking production line according to claim 4 is characterized in that: The first hole tray pushing mechanism includes a translation frame that is slidably installed on the frame in a horizontal direction and driven by a fifth driving device, and a lifting frame that is slidably installed in a vertical direction on the translation frame and driven by a sixth driving device. A first hole tray pushing plate for pushing the hole tray is fixedly installed at the bottom of the lifting frame, and the first hole tray pushing plate is located above the second conveyor belt.

6. The automatic seedling tray stacking production line according to claim 5, characterized in that: The lifting platform is slidably mounted on the frame in a vertical direction and driven by a seventh driving device; An origin detection sheet is fixedly mounted on the frame, and a first photoelectric sensor for realizing detection of the origin detection sheet is fixedly mounted on the lifting platform. When the first photoelectric sensor and the origin detection sheet are in a facing state, the lifting platform and the second conveyor belt are at the same height; A second photoelectric sensor for detecting storage platforms at each level of the seedling raising vehicle is also fixedly installed on one end of the lifting platform close to the traction device of the seedling raising vehicle, and the second photoelectric sensor is located at the bottom of the lifting platform.

7. The automatic seedling tray stacking production line according to any one of claims 1 to 6, characterized in that: The seedling raising vehicle transmission mechanism and the seedling raising vehicle blocking mechanism are respectively located at the same direction ends of the two tracks; The seedling car shifting mechanism comprises a second shifting frame body located on one side of the track, a second sliding mounting plate driven by an eleventh driving device is slidably mounted on the second shifting frame body along the length direction of the guide channel of the seedling car, a shifting block is rotatably mounted on the second sliding mounting plate, and the shifting block has a shifting end extending to the guide channel of the seedling car, and an elastic reset member and a stopper are also provided on the second sliding mounting plate, the elastic reset member is connected to the shifting block, the stopper is fixedly mounted on the second sliding mounting plate, and under the action of the elastic reset member, the shifting block is set against the stopper; The blocking mechanism of the seedling raising vehicle comprises a blocking cylinder, which is fixedly mounted on the track and arranged close to the end of the track.

8. The automatic seedling tray stacking production line according to claim 7, characterized in that: A cylindrical pin is fixedly installed on the second sliding mounting plate, and the shift block is provided with a mounting hole adapted for the cylindrical pin, the mounting hole is located between the shifting end and the connecting end of the shift block, and the shift block is rotatably mounted on the second sliding mounting plate through the cylindrical pin and the mounting hole, a connecting column is fixedly installed on the connecting end of the shift block, and a fixing column is also fixedly installed on the second sliding mounting plate, the elastic reset member is a tension spring, the tension spring is located between the connecting column and the fixing column, and the two ends of the tension spring are respectively connected to the connecting column and the fixing column, the stop block is located between the connecting end of the shift block and the fixing column, and under the action of the tension spring, the connecting end of the shift block abuts against the stop block.

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