Automatic conveying device for cleaning seedling raising plates

Abstract

The invention discloses an automatic conveying device for cleaning seedling raising trays, and relates to the technical field of conveying, the automatic conveying device comprises a hollow feeding box, a cleaning pool, a rinsing pool, a discharging conveying belt and two track conveying lines, a plurality of seedling raising trays are stacked in the hollow feeding box in the height direction of the seedling raising trays, and the seedling raising trays are stacked in the hollow feeding box in an inverted state with openings facing downwards; a jacking plate is arranged in the hollow feeding box, the jacking plate has the freedom degree of moving in the height direction of the hollow feeding box, the two track conveying lines are oppositely arranged, and a seedling raising disc conveying space is formed between the two track conveying lines; a hollow feeding box, a cleaning pool, a rinsing pool and a discharging conveying belt are sequentially arranged in the seedling raising tray conveying space in the conveying direction of the seedling raising trays, a plurality of clamping mechanisms are evenly distributed on the track conveying line in the conveying track direction of the track conveying line, automatic cleaning of the seedling raising trays is completed in the conveying process, the cleaning efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of conveying, in particular to an automatic conveying device for cleaning a seedling tray. Background Art

[0002] The seedling tray is an important tool in the factory seedling production process. The seedling tray is rectangular in shape, and a rectangular groove is formed on the surface of the seedling tray for the cultivation of plant seedlings. In order to achieve reuse, the seedling tray is currently made of hard plastic materials, which improves the structural strength and is not easily damaged during the seedling cultivation process, so that the seedling tray can be recycled. The seedling tray needs to be cleaned after use. Since the seedling tray is large in size and made of hard materials, it cannot be cleaned using traditional stirring cleaning equipment, which can easily cause damage to the seedling tray and the cleaning effect is not ideal. Therefore, it is difficult to achieve automatic cleaning of the seedling tray. At present, the seedling tray is transported to the manual cleaning station by conveying equipment, and the seedling tray is manually scrubbed, which has high labor intensity, high cost and low efficiency. For this reason, it is very necessary to design an automated conveyor line to complete the cleaning process of the seedling tray. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an automatic conveying device for cleaning seedling trays, which completes the cleaning operation during the process of conveying the seedling trays, thereby realizing automation, reducing labor costs and improving cleaning efficiency.

[0004] The objective of the present invention is achieved through the following technical scheme: an automatic conveying device for cleaning seedling trays, comprising a hollow loading box, a cleaning tank, a rinsing tank, a feeding conveyor belt and two groups of track conveying lines, wherein a plurality of seedling trays are stacked in the hollow loading box along its own height direction, and the seedling trays are stacked in the hollow loading box in an inverted state with their openings facing downward, and a lifting plate is arranged in the hollow loading box, and the lifting plate has the freedom to move in the height direction of the hollow loading box, and the two groups of track conveying lines are arranged relatively to each other, and a seedling tray conveying space is formed between the two groups of track conveying lines, and the hollow loading box, the cleaning tank, the rinsing tank, the feeding conveyor belt and two groups of track conveying lines are sequentially arranged in the seedling tray conveying space along the conveying direction of the seedling tray The track conveyor line is a closed conveying track, a straight conveying line is formed just above the hollow loading box, a sunken cleaning conveying line is formed in the cleaning pool, a sunken rinsing conveying line is formed in the rinsing pool, a plurality of clamping mechanisms are evenly distributed along the direction of its own conveying track on the track conveyor line, the clamping mechanism comprises a sliding plug-in block, the moving direction of the plug-in block is perpendicular to the conveying direction of the seedling tray, the plug-in block is located above the hollow loading box, and the two groups of plug-in blocks on the track conveyor line are respectively adapted to the sockets at both ends of the seedling tray.

[0005] Furthermore, the track conveyor line includes a driving sprocket, a driven sprocket and a conveying chain, the driving sprocket and the driven sprocket are respectively located at two ends of the seedling tray conveying path, the driving sprocket and the driven sprocket are connected by the conveying chain transmission, the straight conveying line includes a first sprocket and a second sprocket, the first sprocket is rotatably arranged directly below the driving sprocket, the conveying chain passes around the bottom of the first sprocket and the top of the second sprocket in turn, the clamping mechanism also includes an L-shaped plate and a horizontal seat, the vertical plate of the L-shaped plate is fixed on the inner side of the conveying chain, the horizontal plate of the L-shaped plate is provided with the horizontal seat at the end away from the conveying chain, and the plug-in block is slidably penetrated through the horizontal seat.

[0006] Furthermore, a deflection shaft is fixed to one end of the horizontal seat close to the L-shaped plate, a torsion spring is fixedly mounted on the deflection shaft, a mounting hole is provided on the L-shaped plate, a torsion spring foot hole is provided on the inner wall of the mounting hole, the torsion spring is arranged in the mounting hole, and the torsion foot of the torsion spring is adapted in the torsion spring foot hole, a sliding groove is provided at one end of the horizontal seat away from the L-shaped plate, a spring is arranged in the sliding groove, one end of the plug-in block is slidably adapted in the sliding groove, the plug-in block is connected to the spring, and a wedge-shaped surface is provided at the bottom of the plug-in block away from the spring.

[0007] Furthermore, positioning and feeding mechanisms are provided on both sides of the hollow feeding box, and the positioning and feeding mechanisms include a lifting cylinder, a lifting plate and a finger cylinder. The cylinder body of the lifting cylinder is vertically fixed and installed, the telescopic shaft of the lifting cylinder is connected to the lifting plate, the finger cylinder is vertically installed on the top of the lifting plate, and the finger cylinder is used to clamp the horizontal seat. The hollow feeding box is slidably installed on the workbench, and a horizontal pushing cylinder is installed on the workbench. The telescopic shaft of the horizontal pushing cylinder is connected to the hollow feeding box, and the telescopic direction of the horizontal pushing cylinder is parallel to the conveying direction of the seedling tray. A lifting cylinder is installed at the bottom of the hollow feeding box, and the telescopic shaft of the lifting cylinder is connected to the lifting plate.

[0008] Furthermore, the cleaning conveying line includes a third sprocket and a fourth sprocket, the fourth sprocket is located below the second sprocket, the third sprocket and the fourth sprocket are both rotatably mounted on the inner wall of the cleaning pool, the third sprocket and the fourth sprocket are arranged at the same height along the conveying direction of the seedling tray, the conveying chain passes around the bottom of the third sprocket and the bottom of the fourth sprocket in turn, a brushing mechanism is arranged between the third sprocket and the fourth sprocket, the brushing mechanism includes an upper cleaning roller and a lower cleaning roller, the upper cleaning roller and the lower cleaning roller are both rotatably connected to the cleaning pool, and a plurality of flexible cleaning strips are fixed on the upper cleaning roller and the lower cleaning roller.

[0009] Furthermore, the rinsing conveying line includes a fifth sprocket, a sixth sprocket and a seventh sprocket, the sixth sprocket is located below the second sprocket, the fifth sprocket and the sixth sprocket are both rotatably installed on the inner wall of the rinsing tank, the fifth sprocket and the sixth sprocket are arranged at the same height along the conveying direction of the seedling tray, the seventh sprocket is rotatably arranged between the cleaning tank and the rinsing tank, the seventh sprocket is located above the sixth sprocket, and the conveying chain passes around the top of the seventh sprocket, the bottom of the fifth sprocket and the bottom of the sixth sprocket in sequence.

[0010] Furthermore, a vibration mechanism is provided in both the cleaning pool and the rinsing pool, and the vibration mechanism includes a rotating shaft and a cam. The rotating shaft is rotatably arranged, and the axial direction of the rotating shaft is perpendicular to the conveying direction of the seedling tray. One end of the rotating shaft is connected to the output shaft of the motor, and the other end is fixedly mounted with the cam. The vibration mechanism is used to generate vibration after the seedling tray is discharged from the water.

[0011] Furthermore, the track conveyor line forms a straight conveyor line above the unloading conveyor belt, and the straight conveyor line includes an eighth sprocket and a ninth sprocket, and the eighth sprocket and the ninth sprocket are arranged at intervals along the conveying direction of the seedling tray, and the conveying chain sequentially passes around the top of the eighth sprocket and the bottom of the ninth sprocket, and the two groups of unloading conveyor belts are arranged at intervals along the conveying direction of the seedling tray, and the conveying direction of the unloading conveyor belt is perpendicular to the conveying direction of the seedling tray, and the two groups of unloading conveyor belts respectively support the two ends of the seedling tray for conveying.

[0012] Furthermore, an automatic unloading mechanism is arranged between the two groups of unloading conveyor belts, and the automatic unloading mechanism includes a base, a rotating disk unloading lifting seat and a pneumatic clamp. The rotating disk is rotatably arranged on the top of the base, and the rotation axis of the rotating disk is vertically arranged. The unloading lifting seat is arranged above the rotating disk, and the unloading lifting seat has the freedom to move along the axial direction of the rotating disk. A pneumatic clamp is installed on the top of the unloading lifting seat.

[0013] Furthermore, a feeding motor is arranged in the base, a rotating main shaft is coaxially fixed to the bottom of the rotating disk, the rotating main shaft is rotatably connected to the base via a bearing, the output shaft of the feeding motor is transmission-connected to the rotating main shaft, a feeding cylinder is vertically installed on the rotating disk, and the output shaft of the feeding cylinder is connected to the feeding lifting seat.

[0014] The beneficial effects of the present invention are: The seedling tray is transported by a track conveyor line. When passing through a straight conveyor line, the loading of the seedling tray is completed by the adaptation of the plug-in block and the socket. The seedling tray enters a cleaning tank for cleaning through a cleaning conveyor line, and then enters a rinsing tank for rinsing through a rinsing conveyor line. Finally, the seedling tray is transported to a unloading conveyor belt to complete the unloading operation, thereby completing the automatic cleaning of the seedling tray during the transportation process, thereby improving the cleaning efficiency and reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of an automatic conveying device for cleaning a seedling tray of the present invention is shown in FIG. Figure 1 ; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 The structure of an automatic conveying device for cleaning a seedling tray of the present invention is shown in FIG. Figure 2 ; Figure 4 It is a structural schematic diagram of a clamping mechanism in an automatic conveying device for cleaning a seedling tray of the present invention; Figure 5 The structure of an automatic conveying device for cleaning a seedling tray of the present invention is shown in FIG. Figure 3 ; Figure 6 for Figure 5 Enlarged view of point B in the middle; Figure 7 The structure of an automatic conveying device for cleaning a seedling tray of the present invention is shown in FIG. Figure 4 ; Figure 8 for Figure 7 Enlarged view of point C in the middle; Fig. 9 It is a front view of an automatic conveying device for cleaning a seedling tray of the present invention; In the figure, 1-hollow feeding box, 2-cleaning tank, 3-rinsing tank, 4-unloading conveyor belt, 5-track conveyor line, 6-lifting plate, 7-plug-in block, 8-driving sprocket, 9-driven sprocket, 10-conveying chain, 11-first sprocket, 12-second sprocket, 13-L-shaped plate, 14-horizontal seat, 15-deflection shaft, 16-torsion spring, 17-mounting hole, 18-slide, 19-spring, 20-wedge surface, 21-lifting cylinder, 22-lifting plate, 23-finger cylinder, 24-workbench, 25-horizontal pushing cylinder, 26-lifting cylinder, 27-third sprocket, 28-fourth sprocket, 29-upper cleaning roller, 30-lower cleaning roller, 31-flexible cleaning strip, 32-fifth sprocket, 33-sixth sprocket, 34-seventh sprocket, 35-rotating shaft, 36-cam, 37-eighth sprocket, 38-ninth sprocket, 39-base, 40-rotating disk, 41-unloading lifting seat, 42-pneumatic clamp, 43-rotating spindle, 44-unloading cylinder. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0017] Embodiment 1 like Figures 1 to 9As shown, an automatic conveying device for cleaning seedling trays comprises a hollow loading box 1, a cleaning pool 2, a rinsing pool 3, a material unloading conveyor belt 4 and two sets of track conveying lines 5. A plurality of seedling trays are stacked in the hollow loading box 1 along its own height direction, and the seedling trays are stacked in the hollow loading box 1 in an inverted state with their openings facing downward, so that the openings of the seedling trays face downward during transportation, so that the soil in the rectangular grooves of the seedling trays can fall off quickly during the cleaning process, thereby achieving a better cleaning effect. A lifting plate 6 is arranged in the hollow loading box 1, and the lifting plate 6 has the freedom to move along the height direction of the hollow loading box 1. The two sets of track conveying lines 5 are arranged relatively to each other, and a seedling tray conveying space is formed between the two sets of track conveying lines 5. A hollow loading box 1, a cleaning tank 2, a rinsing tank 3 and a material discharging conveyor belt 4 are sequentially arranged along the conveying direction of the seedling tray. The track conveyor line 5 is a closed conveying track to form a circulating conveying loop. The seedling tray in the hollow loading box 1 is repeatedly loaded through the cleaning tank 2 and the rinsing tank 3. After the cleaning is completed, it is transported to the material discharging conveyor belt 4 for unloading. The track conveyor line 5 forms a straight conveying line just above the hollow loading box 1. The track conveyor line 5 forms a sinking cleaning conveying line in the cleaning tank 2. The track conveyor line 5 forms a sinking rinsing conveying line in the rinsing tank 3. A number of clamping mechanisms are evenly arranged on the track conveyor line 5 along its own conveying track direction. The clamping mechanism includes a sliding plug-in The moving direction of the plug-in block 7 is perpendicular to the conveying direction of the seedling tray. The plug-in block 7 is located above the hollow loading box 1. The plug-in blocks 7 on the two sets of track conveying lines 5 are respectively adapted to the sockets at both ends of the seedling tray. The specific conveying and cleaning process is: the clamping mechanism first moves to the top of the hollow loading box 1, and then the seedling tray is lifted by the lifting plate 6, so that the top seedling tray is located at the time of the two sets of clamping mechanisms, and then the plug-in block 7 is moved and inserted into the sockets of the seedling tray, thereby completing the suspended clamping of the seedling tray by the two sets of clamping mechanisms. After the top seedling tray is loaded, the lifting plate 6 is reset downward, and then the clamping mechanism drives the seedling tray to move along the path direction of the track conveying line 5, and the seedling tray is first cleaned through the conveying line. The tray is transported downward to the cleaning pool 2, where the seedling tray is cleaned, the dirt on the seedling tray is washed off, and then the seedling tray enters the rinsing pool 3 through the rinsing conveying line, where the seedling tray completes the rinsing operation, and the cleaning of the seedling tray is completed by first cleaning and then rinsing. Finally, the clamping mechanism carries the seedling tray to the unloading conveyor belt 4, and the plug-in block 7 is separated from the socket to realize the unloading of the seedling tray, so that the seedling tray falls on the unloading conveyor belt 4, and the cleaned seedling tray is transported to the next workstation through the unloading conveyor belt 4, thereby completing the automatic cleaning of the seedling tray during the transportation process, and the seedling tray is transported forward for cleaning in turn through multiple clamping mechanisms, thereby improving the cleaning efficiency and reducing the cost.

[0018] Embodiment 2 Based on the first embodiment, Figures 1 to 3As shown, the track conveyor line 5 includes a driving sprocket 8, a driven sprocket 9 and a conveying chain 10. The driving sprocket 8 and the driven sprocket 9 are respectively located at the two ends of the seedling tray conveying path, and the driving sprocket 8 and the driven sprocket 9 are connected by the conveying chain 10. The straight conveying line includes a first sprocket 11 and a second sprocket 12. The first sprocket 11 is rotatably arranged directly below the driving sprocket 8. The conveying chain 10 sequentially passes around the bottom of the first sprocket 11 and the top of the second sprocket 12. The clamping mechanism also includes an L-shaped plate 13 and a horizontal seat 14. The vertical plate of the L-shaped plate 13 is fixed on the inner side of the conveying chain 10. The horizontal plate of the L-shaped plate 13 is provided with a horizontal seat 14 at the end away from the conveying chain 10. The plug-in block 7 is slidably penetrated on the horizontal seat 14. The driving sprocket 8 and the driven sprocket 9 are both provided with a fixed bracket , used to rotatably install the driving sprocket 8 and the driven sprocket 9, the first sprocket 11 and the second sprocket 12 are installed on a fixed bracket provided with the driving sprocket 8, and a conveying motor is arranged on the fixed bracket. The output shaft of the conveying motor is connected with the shaft on the driving sprocket 8 through a coupling, and the driving sprocket 8 is driven to rotate by the conveying motor, and the driving sprocket 8 drives the driven sprocket 9, the first sprocket 11 and the second sprocket 12 to rotate through the conveying chain 10. The conveying chain 10 between the first sprocket 11 and the second sprocket 12 is a straight line, thereby driving the clamping mechanism to run to the top of the hollow feeding box 1, and through the movement of the plug-in block 7, the plug-in block 7 can be smoothly inserted into the plug hole of the seedling tray to complete the feeding, so that the clamping mechanism can smoothly correspond to the jacking position of the seedling tray through the arrangement of the straight conveying line to complete the automatic feeding.

[0019] Furthermore, if Figures 1 to 4 As shown, a deflection shaft 15 is fixed to one end of the horizontal seat 14 close to the L-shaped plate 13, a torsion spring 16 is fixedly sleeved on the deflection shaft 15, a mounting hole 17 is provided on the L-shaped plate 13, a torsion spring foot hole is provided on the inner wall of the mounting hole 17, the torsion spring 16 is arranged in the mounting hole 17, and the torsion foot of the torsion spring 16 is adapted in the torsion spring foot hole, a slide groove 18 is provided at one end of the horizontal seat 14 away from the L-shaped plate 13, a spring 19 is provided in the slide groove 18, one end of the plug-in block 7 is slidably adapted in the slide groove 18, the plug-in block 7 is connected to the spring 19, and a wedge-shaped surface 20 is provided at the bottom of the end of the plug-in block 7 away from the spring 19. When the clamping mechanism runs to the loading position, the track conveyor line 5 stops for When loading the seedling tray, the lifting plate 6 lifts the seedling tray and moves upward. The top seedling tray will squeeze the wedge-shaped surface 20 of the plug-in block 7. Under the action of the wedge-shaped surface 20, the plug-in block 7 squeezes the spring 19 to move into the slide groove 18, so that the seedling tray can pass through the plug-in block 7 smoothly. When the socket on the seedling tray corresponds to the plug-in block 7, under the reaction force of the spring 19, the plug-in block 7 is automatically inserted into the socket to complete the automatic loading. Finally, the lifting plate 6 moves downward for a certain distance to separate the loading seedling tray from the seedling tray below, so as to avoid affecting the unloaded seedling tray during the transportation of the seedling tray. After the loading is completed, the track conveyor line 5 starts to transport the seedling tray forward for cleaning operation.

[0020] Embodiment 3 On the basis of the second embodiment, the cleaning conveying line includes a third sprocket 27 and a fourth sprocket 28, the fourth sprocket 28 is located below the second sprocket 12, the third sprocket 27 and the fourth sprocket 28 are both rotatably mounted on the inner side wall of the cleaning pool 2, the third sprocket 27 and the fourth sprocket 28 are arranged at the same height along the conveying direction of the seedling tray, the conveying chain 10 is bypassed from the bottom of the third sprocket 27 and the bottom of the fourth sprocket 28 in turn, a brushing mechanism is arranged between the third sprocket 27 and the fourth sprocket 28, the brushing mechanism includes an upper cleaning roller 29 and a lower cleaning roller 30, the upper cleaning roller 29 and the lower cleaning roller 30 are both rotatably connected to the cleaning pool 2, a plurality of flexible cleaning strips 31 are fixed on the upper cleaning roller 29 and the lower cleaning roller 30, under the action of the second sprocket 12 and the third sprocket 27, the conveying chain 10 is transmitted downward into the cleaning pool 2, and at the third sprocket The brushing mechanism can be used to brush the seedling tray, and the seedling tray can be cleaned quickly and effectively. Specifically, one end of the upper cleaning roller 29 passes through the cleaning pool 2 and is connected to an upper gear, and one end of the lower cleaning roller 30 passes through the cleaning pool 2 and is connected to a lower gear. The lower gear meshes with the upper gear. The upper cleaning roller 29 or the lower cleaning roller 30 is driven by a motor, and then the upper cleaning roller 29 and the lower cleaning roller 30 are rotated simultaneously through the meshing of the lower gear and the upper gear, so that the flexible cleaning strip 31 thereon rotates, and the flexible cleaning strip 31 acts on the seedling tray to achieve a better cleaning effect. Since the opening of the seedling tray is downward, the soil inside it can be easily separated from the seedling tray during the brushing process.

[0021] Embodiment 4 Based on the third embodiment, Figures 1 to 3As shown, the rinsing conveying line includes a fifth sprocket 32, a sixth sprocket 33 and a seventh sprocket 34. The sixth sprocket 33 is located below the second sprocket 12. The fifth sprocket 32 ​​and the sixth sprocket 33 are both rotatably mounted on the inner side wall of the rinsing tank 3. The fifth sprocket 32 ​​and the sixth sprocket 33 are arranged at the same height along the conveying direction of the seedling tray. The seventh sprocket 34 is rotatably arranged between the cleaning tank 2 and the rinsing tank 3. The seventh sprocket 34 is located above the sixth sprocket 33. The conveying chain 10 sequentially bypasses the top of the seventh sprocket 34, the bottom of the fifth sprocket 32 ​​and the bottom of the sixth sprocket 33, and passes through the seventh sprocket 34. The seventh sprocket 34 transfers the conveying chain 10 from the cleaning tank 2 to the rinsing tank 3, and then the seedling tray can be transported into the rinsing tank 3 through the height difference between the seventh sprocket 34 and the fifth sprocket 32, and a stirring shaft is rotatably installed in the rinsing tank, and stirring blades are installed on the stirring shaft. The stirring shaft is driven by a motor to drive the stirring blades to rotate, so that the water in the rinsing tank 3 has a strong movement, so that the water impacts the seedling tray, and then the seedling tray is transported in a straight line in the rinsing tank 3 through the fifth sprocket 32 ​​and the sixth sprocket 33, so that the seedling tray can be soaked in the rinsing tank 3 for a period of time to achieve a better rinsing effect.

[0022] Embodiment 5 Based on the fourth embodiment, Figures 1 to 3 As shown, the track conveyor line 5 forms a straight conveyor line above the unloading conveyor belt 4, and the straight conveyor line includes an eighth sprocket 37 and a ninth sprocket 38. The eighth sprocket 37 and the ninth sprocket 38 are arranged at intervals along the conveying direction of the seedling tray, and the conveying chain 10 passes around the top of the eighth sprocket 37 and the bottom of the ninth sprocket 38 in turn. The two groups of unloading conveyor belts 4 are arranged at intervals along the conveying direction of the seedling tray, and the conveying direction of the unloading conveyor belts 4 is perpendicular to the conveying direction of the seedling tray. The two groups of unloading conveyor belts 4 respectively support the two ends of the seedling tray for conveying, and the conveying chain 10 between the eighth sprocket 37 and the ninth sprocket 38 is a straight line, so that the seedling tray is conveyed in a horizontal state to the bottom of the unloading conveyor belt 4, which is convenient for the unloading operation of the seedling tray. The seventh sprocket 34, the eighth sprocket 37 and the ninth sprocket 38 are all rotatably connected through the mounting bracket.

[0023] Furthermore, if Figures 1 to 9As shown, an automatic unloading mechanism is arranged between the two groups of unloading conveyor belts 4, and the automatic unloading mechanism comprises a base 39, a rotating disk 40 unloading lifting seat 41 and a pneumatic clamp 42. The rotating disk 40 is rotatably arranged on the top of the base 39, and the rotating axis of the rotating disk 40 is arranged vertically. The unloading lifting seat 41 is arranged above the rotating disk 40, and the unloading lifting seat 41 has the freedom to move along the axial direction of the rotating disk 40. The top of the unloading lifting seat 41 is installed with a pneumatic clamp 42, and a unloading motor is arranged in the base 39. A rotating spindle 43 is coaxially fixed to the bottom of the rotating disk 40, and the rotating spindle 43 is rotatably connected to the base 39 through a bearing. The output shaft of the unloading motor is connected to the rotating spindle 43. A unloading cylinder 44 is vertically installed on the rotating disk 40, and the output shaft of the unloading cylinder 44 is connected to the unloading lifting seat 41. The specific unloading operation is: the unloading cylinder 44 drives the unloading lifting seat 41 to move upward, so that the width of the seedling tray is located between the two clamping jaws of the pneumatic clamp 42, and then the pneumatic clamp 42 clamps the seedling tray to unload. The cylinder 44 drives the seedling tray to continue to move upward, so that the seedling tray squeezes the wedge-shaped surface 20 of the plug-in block 7. Under the action of the wedge-shaped surface 20, the plug-in block 7 squeezes the spring 19 into the slide groove 18, so that the plug-in block 7 is disengaged from the socket, and the seedling tray is disengaged from the clamping mechanism. Then the unloading motor drives the rotating disk 40 to rotate through the rotating spindle 43, and the rotating disk 40 drives the pneumatic clamping claw 42 to rotate through the unloading cylinder 44. The pneumatic clamping claw 42 drives the seedling tray to rotate, and the space above the clamping mechanism is used to make the seedling tray The seedling tray is rotated 90° so that the length direction of the seedling tray is parallel to the conveying direction of the seedling tray, that is, the width area of ​​the seedling tray is located between the two clamping mechanisms, and then the unloading cylinder 44 drives the seedling tray to move downward so that the seedling tray can pass through the clamping mechanism smoothly. After the seedling tray moves down and contacts the unloading conveyor belt 4, the pneumatic clamp 42 releases the seedling tray, and the pneumatic clamp 42 continues to move to the bottom of the seedling tray. At this time, the unloading conveyor belt 4 starts to transport the seedling tray forward to the specified position, thereby realizing automatic unloading of the seedling tray.

[0024] Embodiment 6 Based on Example 5, Figures 1 to 4As shown, a vibration mechanism is provided in both the cleaning pool 2 and the rinsing pool 3. The vibration mechanism includes a rotating shaft 35 and a cam 36. The rotating shaft 35 is rotatably arranged, and the axial direction of the rotating shaft 35 is perpendicular to the conveying direction of the seedling tray. One end of the rotating shaft 35 is connected to the output shaft of the motor, and the other end is fixedly sleeved with a cam 36. The vibration mechanism is used to generate vibration after the seedling tray is out of water. When the seedling tray is loaded, there is a seedling tray unloaded synchronously. During the loading and unloading process, the track conveyor line 5 stops to leave time for loading and unloading. During this process, the seedling tray to be removed from the cleaning pool 2 is in the working position of the vibration mechanism in the cleaning pool 2, and the seedling tray to be removed from the rinsing pool 3 is in the working position of the vibration mechanism in the rinsing pool 3. When the seedling tray is in the working position, the seedling tray is in an upward tilted state. At this time, the motor drives the rotating shaft 35 to rotate, and the rotating shaft 35 drives the cam 36 to rotate. The cam 36 repeatedly collides with the seedling tray. When the distal end of the cam 36 contacts the seedling tray, the seedling tray is squeezed by the torsion spring 16 to deflect the seedling tray. When the proximal end of the cam 36 gradually approaches the seedling tray, the seedling tray is reset under the action of the torsion spring 16, and this is repeated, causing the seedling tray to vibrate. Under this vibration, the water and attachments on the seedling tray are thrown off, further improving the cleaning effect of the seedling tray. When the seedling tray is loaded and unloaded, the proximal end of the cam 36 corresponds to the seedling tray, so that the cam 36 is separated from the seedling tray, so that the seedling tray can continue to be transported smoothly.

[0025] Embodiment 7 On the basis of Example 6, Figures 1 to 8As shown, both sides of the hollow feeding box 1 are provided with positioning feeding mechanisms, which include a lifting cylinder 21, a lifting plate 22 and a finger cylinder 23. The cylinder body of the lifting cylinder 21 is vertically fixedly installed, the telescopic shaft of the lifting cylinder 21 is connected to the lifting plate 22, the finger cylinder 23 is vertically installed on the top of the lifting plate 22, and the finger cylinder 23 is used to clamp the horizontal seat 14. The hollow feeding box 1 is slidably installed on the workbench 24, and a horizontal pushing cylinder 25 is installed on the workbench 24. The telescopic shaft of the horizontal pushing cylinder 25 is connected to the hollow feeding box 1, and the telescopic direction of the horizontal pushing cylinder 25 is parallel to the conveying direction of the seedling tray. A lifting cylinder 26 is installed at the bottom of the hollow feeding box 1, and the telescopic shaft of the lifting cylinder 26 is connected to the lifting plate 6. Since the conveying chain 10 cannot be fully tightened, the plug-in Block 7 cannot accurately correspond to the jack of the seedling tray. Therefore, when loading, the lifting cylinder 21 drives the lifting plate 22 to move upward, so that the horizontal seat 14 is located in the clamping claw of the finger cylinder 23, and then the finger cylinder 23 acts to clamp the horizontal seat 14, thereby positioning the horizontal seat 14, and then completing the positioning of the plug-in block 7, while ensuring that the horizontal seat 14 will not be offset during the loading process, so that the loading of the seedling tray is more accurate; after the seedling tray in the hollow loading box 1 is loaded, the horizontal pushing cylinder 25 pushes the hollow loading box 1 horizontally away from the track conveyor line 5, and then the seedling tray to be cleaned is stacked in the hollow loading box 1 through the gantry conveyor frame or the manipulator, and then the horizontal pushing cylinder 25 drives the hollow loading box 1 to reset, so as to automatically clean the next group of seedling trays.

Claims

1. An automatic conveying device for cleaning seedling trays, characterized in that: The utility model comprises a hollow loading box (1), a cleaning tank (2), a rinsing tank (3), a material discharging conveyor belt (4) and two groups of track conveyor lines (5). A plurality of seedling trays are stacked in the hollow loading box (1) along its own height direction. The seedling trays are stacked in the hollow loading box (1) in an inverted state with their openings facing downwards. A lifting plate (6) is arranged in the hollow loading box (1). The lifting plate (6) has the freedom to move along the height direction of the hollow loading box (1). The two groups of track conveyor lines (5) are arranged opposite to each other. A seedling tray conveying space is formed between the two groups of track conveyor lines (5). The hollow loading box (1), the cleaning tank (2), the rinsing tank (3) and the material discharging conveyor belt (4) are arranged in sequence in the seedling tray conveying direction in the seedling tray conveying space. The track conveying line (5) is a closed conveying track. The track conveying line (5) forms a straight conveying line just above the hollow loading box (1). The track conveying line (5) forms a sinking cleaning conveying line in the cleaning tank (2). The track conveying line (5) forms a sinking rinsing conveying line in the rinsing tank (3). The track conveying line (5) is evenly provided with a plurality of clamping mechanisms along the direction of its own conveying track. The clamping mechanisms include a slidably arranged plug-in block (7). The moving direction of the plug-in block (7) is perpendicular to the conveying direction of the seedling tray. The plug-in block (7) is located above the hollow loading box (1). The two groups of plug-in blocks (7) on the track conveying line (5) are respectively adapted to the plug holes at both ends of the seedling tray.

2. The automatic conveying device for cleaning the seedling tray according to claim 1, characterized in that: The track conveying line (5) comprises a driving sprocket (8), a driven sprocket (9) and a conveying chain (10), wherein the driving sprocket (8) and the driven sprocket (9) are respectively located at two ends of the seedling tray conveying path, and the driving sprocket (8) and the driven sprocket (9) are connected in transmission through the conveying chain (10). The linear conveying line comprises a first sprocket (11) and a second sprocket (12), wherein the first sprocket (11) is rotatably arranged directly below the driving sprocket (8), and the conveying chain (10) is passed around the bottom of the first sprocket (11) and the top of the second sprocket (12) in sequence. The clamping mechanism also comprises an L-shaped plate (13) and a horizontal seat (14), wherein the vertical plate of the L-shaped plate (13) is fixed to the inner side of the conveying chain (10), and the horizontal plate of the L-shaped plate (13) is provided with the horizontal seat (14) at one end away from the conveying chain (10), and the plug-in block (7) is slidably arranged on the horizontal seat (14).

3. The automatic conveying device for cleaning the seedling tray according to claim 2, characterized in that: A deflection shaft (15) is fixed to one end of the horizontal seat (14) close to the L-shaped plate (13), a torsion spring (16) is fixedly sleeved on the deflection shaft (15), a mounting hole (17) is provided on the L-shaped plate (13), a torsion spring foot hole is provided on the inner wall of the mounting hole (17), the torsion spring (16) is arranged in the mounting hole (17), and the torsion foot of the torsion spring (16) is adapted in the torsion spring foot hole, a sliding groove (18) is provided at one end of the horizontal seat (14) away from the L-shaped plate (13), a spring (19) is provided in the sliding groove (18), one end of the plug-in block (7) is slidably adapted in the sliding groove (18), the plug-in block (7) is connected to the spring (19), and a wedge-shaped surface (20) is provided at the bottom of the end of the plug-in block (7) away from the spring (19).

4. The automatic conveying device for cleaning the seedling tray according to claim 3, characterized in that: Both sides of the hollow loading box (1) are provided with positioning loading mechanisms, the positioning loading mechanisms comprising a lifting cylinder (21), a lifting plate (22) and a finger cylinder (23), the cylinder body of the lifting cylinder (21) is vertically fixedly installed, the telescopic shaft of the lifting cylinder (21) is connected to the lifting plate (22), the finger cylinder (23) is vertically installed on the top of the lifting plate (22), and the finger cylinder (23) is used to clamp the horizontal seat (14), the hollow loading box (1) is slidably installed on a workbench (24), a horizontal pushing cylinder (25) is installed on the workbench (24), the telescopic shaft of the horizontal pushing cylinder (25) is connected to the hollow loading box (1), and the telescopic direction of the horizontal pushing cylinder (25) is parallel to the conveying direction of the seedling tray, and a lifting cylinder (26) is installed at the bottom of the hollow loading box (1), and the telescopic shaft of the lifting cylinder (26) is connected to the lifting plate (6).

5. The automatic conveying device for cleaning the seedling tray according to claim 2, characterized in that: The cleaning conveying line comprises a third sprocket (27) and a fourth sprocket (28), wherein the fourth sprocket (28) is located below the second sprocket (12), and the third sprocket (27) and the fourth sprocket (28) are both rotatably mounted on the inner side wall of the cleaning pool (2), and the third sprocket (27) and the fourth sprocket (28) are arranged at the same height along the conveying direction of the seedling tray, and the conveying chain (10) passes through the bottom of the third sprocket (27) and the bottom of the fourth sprocket (28) in sequence, and a brushing mechanism is arranged between the third sprocket (27) and the fourth sprocket (28), and the brushing mechanism comprises an upper cleaning roller (29) and a lower cleaning roller (30), and the upper cleaning roller (29) and the lower cleaning roller (30) are both rotatably connected to the cleaning pool (2), and a plurality of flexible cleaning strips (31) are fixed to the upper cleaning roller (29) and the lower cleaning roller (30).

6. The automatic conveying device for cleaning the seedling tray according to claim 2, characterized in that: The rinsing conveying line comprises a fifth sprocket (32), a sixth sprocket (33) and a seventh sprocket (34); the sixth sprocket (33) is located below the second sprocket (12); the fifth sprocket (32) and the sixth sprocket (33) are both rotatably mounted on the inner side wall of the rinsing tank (3); the fifth sprocket (32) and the sixth sprocket (33) are arranged at the same height along the conveying direction of the seedling tray; the seventh sprocket (34) is rotatably arranged between the cleaning tank (2) and the rinsing tank (3); the seventh sprocket (34) is located above the sixth sprocket (33); and the conveying chain (10) passes over the top of the seventh sprocket (34), the bottom of the fifth sprocket (32) and the bottom of the sixth sprocket (33) in sequence.

7. The automatic conveying device for cleaning the seedling tray according to claim 3, characterized in that: A vibration mechanism is provided in both the cleaning pool (2) and the rinsing pool (3), the vibration mechanism comprising a rotating shaft (35) and a cam (36), the rotating shaft (35) being rotatably arranged, the axial direction of the rotating shaft (35) being perpendicular to the conveying direction of the seedling tray, one end of the rotating shaft (35) being connected to the output shaft of the motor, and the other end being fixedly sleeved with the cam (36), the vibration mechanism being used to generate vibration after the seedling tray is discharged from water.

8. The automatic conveying device for cleaning the seedling tray according to claim 1, characterized in that: The track conveyor line (5) forms a straight conveyor line above the unloading conveyor belt (4), and the straight conveyor line includes an eighth sprocket (37) and a ninth sprocket (38). The eighth sprocket (37) and the ninth sprocket (38) are arranged at intervals along the conveying direction of the seedling tray. The conveying chain (10) passes through the top of the eighth sprocket (37) and the bottom of the ninth sprocket (38) in sequence. The unloading conveyor belt (4) is arranged in two groups at intervals along the conveying direction of the seedling tray. The conveying direction of the unloading conveyor belt (4) is perpendicular to the conveying direction of the seedling tray. The two groups of unloading conveyor belts (4) respectively support the two ends of the seedling tray for conveying.

9. The automatic conveying device for cleaning the seedling tray according to claim 8, characterized in that: An automatic unloading mechanism is arranged between the two groups of unloading conveyor belts (4), and the automatic unloading mechanism comprises a base (39), a rotating disk (40), an unloading lifting seat (41) and a pneumatic clamp (42). The rotating disk (40) is rotatably arranged on the top of the base (39), and the rotation axis of the rotating disk (40) is arranged vertically. The unloading lifting seat (41) is arranged above the rotating disk (40), and the unloading lifting seat (41) has the freedom to move along the axial direction of the rotating disk (40). The pneumatic clamp (42) is installed on the top of the unloading lifting seat (41).

10. The automatic conveying device for cleaning the seedling tray according to claim 9, characterized in that: A material unloading motor is arranged in the base (39); a rotating main shaft (43) is coaxially fixed to the bottom of the rotating disk (40); the rotating main shaft (43) is rotatably connected to the base (39) via a bearing; an output shaft of the material unloading motor is transmission-connected to the rotating main shaft (43); a material unloading cylinder (44) is vertically mounted on the rotating disk (40); and an output shaft of the material unloading cylinder (44) is connected to the material unloading lifting seat (41).

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