Automatic filling equipment for soilless culture substrate

Abstract

The invention relates to the technical field of soilless culture, in particular to soilless culture substrate automatic filling equipment which comprises a filling table and a substrate bin arranged above the filling table, at least two tray feeding grooves and at least two tray retreating grooves are formed in the filling table around the substrate bin, and hole trays reach the filling positions located at the starting ends of the tray retreating grooves from the tray feeding grooves. A plurality of soil outlets with the same number as the tray feeding grooves are formed in the bottom of the matrix bin, tray pushing plates provided with scrubbing brushes are arranged in the tray retreating grooves, passages communicated with the adjacent tray retreating grooves are arranged on the filling table, and a driving mechanism on the filling table drives the tray pushing plates to push a plurality of filled hole trays to move towards the tail ends of the tray retreating grooves respectively. The driving mechanism drives the tray pushing plate to move to the starting end of the adjacent tray retreating groove from the passage, and the recycling hopper at the bottom of the filling table is communicated with the recycling openings located in the movement paths of the corresponding scrubbing brushes, so that the filling efficiency is improved, and scattered matrixes during filling of a plurality of hole trays are recycled in a centralized manner.

Description

Technical Field

[0001] The invention relates to the technical field of soilless cultivation, in particular to automatic filling equipment for soilless cultivation substrates. Background Art

[0002] Soilless cultivation is a new crop cultivation technology developed in recent decades. In soilless cultivation, a plug tray (seedling tray) containing seeds or plants is usually floated in a pool of nutrient solution, using the nutrient solution to supply nutrients for seed germination and plant growth.

[0003] During the soilless cultivation process, it is necessary to fill the multiple compartments of the plug tray with substrate soil for burying seeds and fixing the plant roots. The substrate is usually filled manually, or semi-automatically or automatically by a substrate filling machine.

[0004] A Chinese utility model with announcement number CN219046964U discloses a device for filling substrate soil in a seedling tray, comprising a frame, a conveyor belt is installed on the frame for transmission, a fixed guide limit frame and an adjustable guide limit frame are respectively arranged on both sides of the frame along the conveying direction, a loader is relatively arranged above the conveyor belt, the loader is installed on the frame through a mounting frame, the top of the loader is connected to a substrate soil conveying pipeline, and a control valve is installed on the substrate soil conveying pipeline; a cleaning brush is also relatively arranged above the conveyor belt, the cleaning brush is installed on a cleaning drive mechanism, and the cleaning drive mechanism is installed on the frame; interception mechanisms are respectively arranged at both ends of the cleaning drive mechanism and the loader along the conveying direction, and the interception mechanisms are both installed on the frame, which solves the current problems of low filling efficiency of substrate soil in seedling trays, and the problem of insufficient filling and uneven filling of each acupoint.

[0005] The above patent adopts the traditional assembly line operation, that is, the plug tray is loaded, filled and unloaded on one assembly line. During the filling process, the matrix scattered outside the plug tray is output at the same position as the filled plug tray, which is easy to conflict with each other, making it inconvenient to recycle the matrix. In addition, each action of the filling mechanism can only complete the filling of one plug tray, which is inefficient. If multiple filling devices are set on the same assembly line, the hardware cost will be greatly increased. Summary of the invention

[0006] In order to make up for the above shortcomings, the present invention provides an automatic filling device for soilless culture substrates to solve the problems of low filling efficiency and inconvenient substrate recovery in the assembly line filling operation proposed in the above background technology.

[0007] The technical solution of the present invention is:

[0008] An automatic filling device for soilless culture substrates, comprising a filling platform and a substrate bin, wherein the substrate bin is located above the filling platform and supported on the filling platform by a plurality of support columns, and at least two upper tray grooves and at least two tray withdrawal grooves are arranged around the substrate bin on the filling platform, wherein the upper tray grooves are connected to corresponding tray withdrawal grooves, and a plug tray reaches a filling position at a starting end of the tray withdrawal groove from the upper tray grooves;

[0009] The bottom of the matrix bin is provided with a plurality of discharge ports having the same number as the upper plate slots, the discharge ports are located directly above the filling position, and the filling platform is provided with a plurality of gates for controlling the opening and closing of the discharge ports;

[0010] A plate pushing plate is arranged in the plate withdrawing groove, and a hard brush is arranged on the plate pushing plate;

[0011] The loading platform is provided with an aisle connected to adjacent tray withdrawal slots, and a driving mechanism connected to all tray pushing plates is provided on the loading platform, and the driving mechanism drives the tray pushing plate to push the hole tray at the loading position to move to the end of the tray withdrawal slot, and the driving mechanism drives the tray pushing plate to move from the aisle to the starting end of the adjacent tray withdrawal slot;

[0012] A conical recovery bucket is arranged at the bottom of the filling platform, and a plurality of recovery ports connected to the recovery bucket are arranged on the filling platform, and the plurality of recovery ports are distributed on the movement path of the bristle brush.

[0013] Preferably, upper plate grooves and plate return grooves are arranged on all four sides of the loading platform, the upper plate grooves and plate return grooves on the same side are parallel to each other, and the adjacent upper plate grooves and plate return grooves are perpendicular to each other.

[0014] Preferably, the driving mechanism comprises a central shaft, a transmission seat, a sleeve, a telescopic column and a four-corner slide, wherein the central shaft is rotatably arranged on the loading platform, the transmission seat is arranged at the lower end of the central shaft, and sleeves are arranged around the transmission seat along the radial direction of the central shaft;

[0015] The top of the loading platform is provided with four strip grooves arranged around the central axis, the strip grooves are parallel to the corresponding tray withdrawal grooves, and are located between the tray withdrawal grooves and the central axis, and the adjacent strip grooves are connected through arc grooves;

[0016] The four-corner slide is slidably matched with the strip groove and the arc groove, the four corners of the four-corner slide are distributed in a rectangular shape, the width of the four-corner slide is adapted to the width of the strip groove and the arc groove, and the inner side of the four-corner slide close to the central axis is provided with a recessed groove recessed outward, and the four-corner slide uses the recessed groove to avoid the groove wall of the inner connecting part of the arc groove when passing through the arc groove;

[0017] A cylinder is arranged on the top of the four-corner slide, one end of the telescopic column is slidably plugged with the sleeve, and the other end is provided with a socket for the cylinder to be plugged and rotated, and one end of the push plate is connected to the four-corner slide through a connecting part.

[0018] Preferably, rollers are rotatably provided at the four corners of the four-corner slide, and the four-corner slide contacts the two side groove walls of the strip groove and the arc groove through the four rollers.

[0019] Preferably, the loading platform is provided with a through hole connected to the recovery bucket, and a feeding pipe is inserted into the through hole;

[0020] The central shaft is a hollow shaft, and the feeding tube passes through the central shaft and the channel inside the transmission seat;

[0021] The matrix bin is provided with a central hole, and the top of the auger is provided with a ring-shaped material trough arranged around the central hole, and the material trough is connected with a plurality of soil discharge ports;

[0022] The central shaft is rotatably plugged with the central hole, the central shaft passes through the central hole, the top of the feeding tube is not lower than the top of the central shaft, a transmission disc is arranged on the top of the transmission shaft, the transmission disc is spaced apart from the top of the feeding tube, the bottom of the feeding tube is spaced apart from the inner wall of the recovery bucket, and the transmission disc is connected to the top of the central shaft through a plurality of transmission columns;

[0023] The lower end of the transmission shaft that passes through the bottom of the recovery bucket is provided with a transmission gear for connecting to a driving device.

[0024] Preferably, a plurality of stirring claws surrounding the transmission shaft are arranged on the transmission disc, and the lower ends of the stirring claws extend radially outwardly along the trough.

[0025] Preferably, the recovery port is located in the aisle.

[0026] Preferably, a groove wall at the bottom of the end of the tray withdrawal groove is provided with a downwardly inclined slope, the slope is located between the end of the tray withdrawal groove and the aisle, and the bristle brush does not pass over the slope.

[0027] Preferably, the width of the tray withdrawal groove is greater than the width of the hole tray, and a longitudinal limit plate is provided on the side of the tray withdrawal groove close to the central axis, and the longitudinal limit plate is parallel to the tray withdrawal groove, and the two ends of the longitudinal limit plate are plugged into the groove wall at the bottom of the tray withdrawal groove through two pairs of longitudinal adjustment pins, and at least two pairs of longitudinal adjustment holes for the longitudinal adjustment pins to be plugged in are provided on the groove wall at the bottom of the tray withdrawal groove in a direction perpendicular to the longitudinal limit plate.

[0028] Preferably, the length of the upper plate groove is greater than the length of the hole tray, and transverse limit plates parallel to the upper plate groove are provided on both sides of the upper plate groove. The spacing between the transverse limit plates on both sides is adapted to the length of the hole tray, and the two ends of the transverse limit plates are arranged on the loading platform through two pairs of transverse adjustment pins, and at least two pairs of transverse adjustment holes for inserting transverse adjustment pins are provided on the groove walls on both sides of the upper plate groove in a direction perpendicular to the transverse limit plates.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] Firstly, the present invention arranges multiple sets of tray withdrawal grooves and tray loading grooves on the loading platform, cooperates with multiple soil discharge openings corresponding to the bottom of the matrix bin, and the driving mechanism drives the tray pushing plates equipped with bristle brushes in the multiple tray withdrawal grooves to realize the export of multiple loaded hole trays, so as to improve the loading efficiency of the automatic loading equipment;

[0031] Secondly, the present invention arranges a bristle brush on the tray pusher plate, and uses the bristle brush to sweep the matrix scattered outside the hole tray during filling into the recovery port, so that the recovery bucket connected to multiple recovery ports at the bottom of the filling station completes the centralized recovery of the matrix. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the automatic filling equipment for soilless culture substrate of the present invention;

[0033] Figure 2 It is a structural schematic diagram of the loading platform and the driving mechanism of the present invention;

[0034] Figure 3 It is a structural schematic diagram of the recovery bucket and the driving mechanism of the present invention;

[0035] Figure 4 It is a structural schematic diagram of the feeding pipe of the present invention;

[0036] Figure 5 It is a structural schematic diagram of the loading platform of the present invention;

[0037] Figure 6 It is a structural schematic diagram of the matrix bin of the present invention;

[0038] Figure 7 It is a structural schematic diagram of the recovery bucket of the present invention;

[0039] Figure 8 It is a schematic diagram of the structure of the sleeve and the telescopic column of the present invention;

[0040] Fig. 9 It is a structural schematic diagram of the dead angle bracket of the present invention;

[0041] Fig.10 It is a structural schematic diagram of the transverse limiting plate of the present invention;

[0042] Fig.11 It is a schematic structural diagram of the longitudinal limiting plate of the present invention.

[0043] In the figure:

[0044] 1. Loading platform; 2. Matrix bin; 3. Support column; 4. Upper plate groove; 5. Plate withdrawal groove; 6. Excavation port; 7. Gate; 8. Plate push plate; 9. Driving mechanism; 10. Brush; 11. Aisle; 12. Recovery bucket; 13. Recovery port; 14. Strip groove; 15. Arc groove; 16. Give way groove; 17. Cylinder; 18. Socket; 19. Connecting part; 20. Roller; 21. Through hole; 22. Feeding pipe; 23. Transmission shaft; 24. Auger; 25. Center hole; 26. Material trough; 27. Transmission plate; 28. Transmission column; 29. ​​Transmission gear; 30. Stirring claw; 31. Inclined surface; 32. Longitudinal limit plate; 33. Longitudinal adjustment pin; 34. Longitudinal adjustment hole; 35. Horizontal limit plate; 36. Horizontal adjustment pin; 37. Horizontal adjustment hole;

[0045] 901, center axis; 902, transmission seat; 903, sleeve; 904, telescopic column; 905, four-corner slide. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] See also Figure 1-11 The present invention describes the above technical solution in detail through the following embodiments:

[0048] An automatic filling device for soilless culture substrates, comprising a filling platform 1 and a substrate bin 2, wherein the substrate bin 2 is located above the filling platform 1 and supported on the filling platform 1 by a plurality of support columns 3, at least two upper tray grooves 4 and at least two tray withdrawal grooves 5 are arranged on the filling platform 1 around the substrate bin 2, the upper tray grooves 4 are connected with the corresponding tray withdrawal grooves 5, and the plug tray reaches the filling position at the starting end of the tray withdrawal groove 5 from the upper tray groove 4;

[0049] The bottom of the matrix bin 2 is provided with a number of discharge ports 6, which are the same as the number of the upper plate slots 4. The discharge ports 6 are located directly above the filling position. The filling platform 1 is provided with a number of gates 7 for controlling the opening and closing of the discharge ports 6.

[0050] A plate pushing plate 8 is arranged in the plate withdrawing groove 5, and a bristle brush 10 is arranged on the plate pushing plate 8;

[0051] The loading platform 1 is provided with a passage 11 connected to adjacent tray withdrawal slots 5, and a driving mechanism 9 connected to all tray pushing plates 8 is provided on the loading platform 1. The driving mechanism 9 drives the tray pushing plates 8 to push the hole trays at the loading position to move toward the end of the tray withdrawal slot 5, and the driving mechanism 9 drives the tray pushing plates 8 to move from the passage 11 to the starting end of the adjacent tray withdrawal slot 5;

[0052] A conical recovery bucket 12 is disposed at the bottom of the filling platform 1 . The filling platform 1 is provided with a plurality of recovery ports 13 connected to the recovery bucket 12 , and the plurality of recovery ports 13 are distributed on the movement path of the bristle brush 10 .

[0053] The present invention arranges multiple groups of tray withdrawal grooves 5 and tray upper grooves 4 on the filling platform 1, cooperates with multiple unearthed openings 6 corresponding to the bottom of the matrix bin 2, and the driving mechanism 9 drives the tray pushing plates 8 equipped with hard-bristle brushes 10 in the multiple tray withdrawal grooves 5, so as to realize the export of multiple filled hole trays, so as to improve the filling efficiency of the automatic filling equipment, and uses the hard-bristle brush 10 to sweep the matrix scattered outside the hole tray during filling into the recovery port 13, so that the recovery bucket 12 connected to the multiple recovery ports 13 at the bottom of the filling platform 1 completes the centralized recovery of the matrix.

[0054] It is to be supplemented that the gate 7 can be manually operated by a worker or controlled by a machine, and the same is true for the loading of the hole tray. The focus of the present invention is to achieve the synchronous unloading of multiple filled hole trays and the centralized recovery of the matrix scattered during the filling process of multiple hole trays.

[0055] Preferably, upper plate grooves 4 and tray return grooves 5 are provided on all sides of the filling table 1, the upper plate grooves 4 and tray return grooves 5 on the same side are parallel to each other, and adjacent upper plate grooves 4 and tray return grooves 5 are perpendicular to each other, that is, the hole trays are loaded and unloaded on all sides of the filling table 1, so as to facilitate the layout of the production line and maximize the efficiency of the automatic filling equipment.

[0056] The driving mechanism 9 includes a central shaft 901, a transmission seat 902, a sleeve 903, a telescopic column 904 and a four-corner slide 905. The central shaft 901 is rotatably arranged on the loading platform 1, the transmission seat 902 is arranged at the lower end of the central shaft 901, and sleeves 903 are arranged around the transmission seat 902 along the radial direction of the central shaft 901.

[0057] The top of the loading platform 1 is provided with four strip grooves 14 arranged around the central axis 901, the strip grooves 14 are parallel to the corresponding tray withdrawal grooves 5, and are located between the tray withdrawal grooves 5 and the central axis 901, and adjacent strip grooves 14 are connected through arc grooves 15;

[0058] The four-corner slide 905 is slidably matched with the strip groove 14 and the arc groove 15. The four corners of the four-corner slide 905 are distributed in a rectangular shape. The width of the four-corner slide 905 is adapted to the width of the strip groove 14 and the arc groove 15. The inner side of the four-corner slide 905 close to the central axis 901 is provided with a recessed groove 16 that is recessed outward. When the four-corner slide 905 passes through the arc groove 15, the recessed groove 16 is used to avoid the groove wall of the inner connecting portion 19 of the arc groove 15.

[0059] A cylinder 17 is set on the top of the four-corner slide 905, one end of the telescopic column 904 is slidably plugged into the sleeve 903, and the other end is provided with a socket 18 for the cylinder 17 to be plugged and rotated, and one end of the push plate 8 is connected to the four-corner slide 905 through a connecting part 19.

[0060] Specifically, when the central shaft 901 drives the sleeve 903 and the telescopic column 904 to rotate through the transmission seat 902, the length of the telescopic component composed of the telescopic column 904 and the sleeve 903 shortens and lengthens as the four-corner slide 905 moves from one end of the strip groove 14 to the other end due to the guidance and position limiting of the strip groove 14 and the arc groove 15. The four-corner slide 905 is rotatably connected with the telescopic column 904 through the cooperation of the cylinder 17 and the plug hole 18, so that the four-corner slide 905 can perform a circular motion along the square-shaped groove structure composed of the four strip grooves 14 and the four arc grooves 15 as the central shaft 901 rotates, and the angle of the four-corner slide 905 does not change when it moves in the strip groove 14, so that in the process of the four-corner slide 905 moving along the strip groove 14, the push plate 8 can always remain parallel to the end of the hole plate, so that the push plate 8 can steadily push the hole plate to move along the tray withdrawal groove 5.

[0061] In particular, during the movement of the four-corner slide 905 in the arc groove 15, the frontmost corner of the four-corner slide 905 is blocked by the outer wall of the arc groove 15, so that the front end of the four-corner slide 905 rotates inward around the cylinder 17, while the rear end of the four-corner slide 905 rotates outward around the cylinder 17, so that when the four-corner slide 905 moves from the strip groove 14 to the adjacent arc groove 15 and the strip groove 14, the push plate 8 can swing with the change of the angle of the four-corner slide 905 in the arc groove 15. At this time, the push plate 8 pushes the hole plate to continue to move along the tray withdrawal groove 5 through the end away from the central axis 901 until the push plate 8 is separated from the hole plate, and then the push plate 8 passes through the aisle 11 driven by the four-corner slide 905 and reaches one end of the adjacent tray withdrawal groove 5.

[0062] When the plug trays in the adjacent tray return slots 5 are filled, as the central shaft 901 continues to rotate, the push plate 8 pushes the plug trays in the adjacent tray return slots 5 to move toward the end of the tray return slots 5. Similarly, the matrix automatic filling device simultaneously completes the discharge of four plug trays from four directions.

[0063] Among them, the arc-shaped clearance groove 16 extending to both ends of the inner side of the four-corner slide 905 prevents the inner side of the four-corner slide 905 from being blocked by the groove wall inside the arc groove 15, thereby ensuring that the four-corner slide 905 can pass through the arc groove 15.

[0064] It should be noted that if the hole tray is pushed directly by rotating the push plate 8 around the central axis 901, firstly, since the contact point position between the push plate 8 and the hole tray changes continuously in the width direction of the hole tray, the hole tray is easily deflected in the wider upper tray groove 4, causing the hole tray to be stuck in the upper tray groove 4 and the intersection area between the upper tray groove 4 and the tray withdrawal groove 5. Secondly, the contact point between the push plate 8 and the hole tray moves quickly in the radial direction of the central axis 901, and the contact time between the push plate 8 and the hole tray or the pushing distance of the push plate 8 on the hole tray is very limited. Thirdly, the contact point position between the push plate 8 and the hole tray moves back and forth in the width direction of the hole tray, which further causes the hole tray to be easily stuck.

[0065] In the solution of the above embodiment, although the push plate 8 pushes the hole plate when swinging, the contact point position between the push plate 8 and the hole plate is also constantly changing. However, firstly, the hole plate is in motion at this time, and under inertia, the hole plate is not easy to deflect. Secondly, at this time, the movement of the contact point between the push plate 8 and the hole plate is a one-way movement, which has little effect on the stable movement of the hole plate in the upper plate groove 4. Thirdly, when the push plate 8 pushes the hole plate during the swinging process, the front end of the hole plate has already left the upper plate groove 4 or is about to leave the upper plate groove 4, and the hole plate is less likely to get stuck in the upper plate groove 4.

[0066] It is particularly noted that when the hole tray is in the filling position, the end of the push plate 8 away from the central axis 901 is located in the rear end area of ​​the hole tray, so that when the push plate 8 swings, the swing pushes the hole tray forward from the rear end of the hole tray. Otherwise, when the push plate 8 swings, the rear end of the hole tray will be pushed inward, causing the hole tray to be stuck.

[0067] Further optimized in the above embodiment is that rollers 20 are rotatably provided at the four corners of the four-corner slide 905, and the four-corner slide 905 contacts the two side groove walls of the strip groove 14 and the arc groove 15 through the four rollers 20 to reduce the wear of the groove walls of the strip groove 14 and the arc groove 15, and help the four-corner slide 905 to move smoothly in the strip groove 14 and the arc groove 15.

[0068] Further optimization of the above embodiment is that a through hole 21 connected to the recovery bucket 12 is provided on the loading platform 1, a feeding pipe 22 is inserted into the through hole 21, and an auger 24 is provided in the feeding pipe 22 through a transmission shaft 23 for rotation;

[0069] The central shaft 901 is a hollow shaft, and the feeding tube 22 passes through the central shaft 901 and the channel inside the transmission seat 902;

[0070] The substrate bin 2 is provided with a central hole 25, and the top of the auger 24 is provided with a ring-shaped material trough 26 arranged around the central hole 25, and the material trough 26 is connected to a plurality of soil discharge ports 6;

[0071] The central shaft 901 is rotatably plugged with the central hole 25, the central shaft 901 passes through the central hole 25, the top of the feeding tube 22 is not lower than the top of the central shaft 901, a transmission disc 27 is arranged on the top of the transmission shaft 23, the transmission disc 27 is spaced apart from the top of the feeding tube 22, the bottom of the feeding tube 22 is spaced apart from the inner wall of the recovery bucket 12, and the transmission disc 27 is connected to the top of the central shaft 901 through a plurality of transmission columns 28;

[0072] The lower end of the transmission shaft 23 passing through the bottom of the recovery bucket 12 is provided with a transmission gear 29 for connecting to a driving device.

[0073] The driving device drives the transmission gear 29 to rotate, so that the transmission gear 29 drives the auger 24 to rotate through the transmission shaft 23, and the conical recovery bucket 12 collects the matrix dropped from the recovery port 13 to the central auger 24. When the auger 24 rotates, the matrix concentrated around the auger 24 is transported upward. When the matrix is ​​transported to the top of the auger 24, under the obstruction of the transmission disc 27, the matrix on the top of the auger 24 falls from between the transmission disc 27 and the feeding pipe 22 into the material trough 26 of the matrix bin 2, thereby realizing the recycling of the matrix.

[0074] Furthermore, compared to the method of directly setting a driving device between the loading platform 1 and the substrate bin 2 to drive the central axis 901 to rotate, this embodiment helps to reduce the distance between the substrate bin 2 and the loading platform 1, that is, shorten the distance that the substrate falls from the excavation port 6 onto the hole tray, which not only makes the structure of the substrate automated filling equipment more centralized and compact, but also helps to reduce the negative impact on the substrate filling effect caused by the diffusion of the substrate due to air resistance during the falling process.

[0075] Preferably, the inner wall of the trough 26 is in the shape of a cone with the lower end extending outward, and if the inner and outer walls of the trough 26 are both annular, when the trough 26 is wide, the matrix in the trough 26 is not easy to be concentrated toward the unearthed opening 6. When the trough 26 is narrow, although it is conducive to the matrix in the trough 26 to be concentrated toward the unearthed opening 6, the capacity of the trough 26 will be reduced.

[0076] A further optimization of the above embodiment is that a plurality of stirring claws 30 surrounding the transmission shaft 23 are provided on the transmission disc 27, and the lower ends of the stirring claws 30 extend radially outward along the trough 26, thereby eliminating the need for additional stirring equipment.

[0077] Preferably, the recovery port 13 is located in the passage 11, and the matrix scattered in the tray withdrawal groove 5 is collected during the linear motion of the bristle brush 10, and the bristle brush 10 sweeps the matrix concentrated in front into the passage 11 during the swinging of the tray push plate 8 toward the passage 11, so that the matrix in the passage 11 falls from the recovery port 13 at the bottom into the recovery bucket 12 below. If the recovery port 13 is directly set in the tray withdrawal groove 5 area corresponding to the strip groove 14, since the hole tray has a porous structure at the bottom, when the hole tray passes through the recovery port 13, the matrix filled in the hole tray is easy to fall through the holes at the bottom and the recovery port 13, resulting in poor matrix filling effect.

[0078] Further optimization of the above embodiment is that the groove wall at the bottom of the end of the tray return groove 5 is provided with a downwardly inclined slope 31, so as to help the loaded hole tray to be guided out of the tray return groove 5 along the slope 31 by its own weight. In addition, the slope 31 is located between the end of the tray return groove 5 and the passage 11, and the bristle brush 10 does not pass over the slope 31, thereby preventing part of the matrix in front of the bristle brush 10 from falling onto the lower slope 31, which causes the matrix in front of the bristle brush 10 to be unable to fall into the recovery bucket 12 through the recovery port 13 for recovery.

[0079] What is further optimized in the above embodiment is that the width of the tray withdrawal groove 5 is greater than the width of the hole tray, and a longitudinal limit plate 32 is provided on the side of the tray withdrawal groove 5 close to the central axis 901, and the longitudinal limit plate 32 is parallel to the tray withdrawal groove 5, and the two ends of the longitudinal limit plate 32 are plugged into the groove wall at the bottom of the tray withdrawal groove 5 through two pairs of longitudinal adjustment pins 33, and at least two pairs of longitudinal adjustment holes 34 for the longitudinal adjustment pins 33 to be plugged in are provided on the groove wall at the bottom of the tray withdrawal groove 5 in a direction perpendicular to the longitudinal limit plate 32, that is, the position of the hole tray relative to the excavation port 6 in its width direction is adjusted through the longitudinal limit plate 32 to adapt to the matrix filling of hole trays of different widths.

[0080] Similarly, the length of the upper plate groove 4 is greater than the length of the plug tray, and transverse limit plates 35 parallel to the upper plate groove 4 are provided on both sides of the upper plate groove 4. The spacing between the transverse limit plates 35 on both sides is adapted to the length of the plug tray, and the two ends of the transverse limit plates 35 are arranged on the filling platform 1 through two pairs of transverse adjustment pins 36, and at least two pairs of transverse adjustment holes 37 for the transverse adjustment pins 36 to be plugged in are provided on the groove walls on both sides of the upper plate groove 4 in a direction perpendicular to the transverse limit plates 35, that is, the position of the plug tray in its length direction relative to the excavation port 6 is adjusted through the transverse limit plates 35 to adapt to the matrix filling of plug trays of different lengths.

[0081] It is known from common technical knowledge that the present application can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present application or within the scope equivalent to the present application are included in the present application.

Claims

1. An automatic filling device for soilless culture substrate, characterized in that: The invention comprises a loading platform (1) and a matrix bin (2), wherein the matrix bin (2) is located above the loading platform (1) and supported on the loading platform (1) by a plurality of support columns (3), and at least two upper tray grooves (4) and at least two tray withdrawal grooves (5) are arranged on the loading platform (1) around the matrix bin (2), wherein the upper tray grooves (4) are connected to corresponding tray withdrawal grooves (5), and the plug tray reaches the loading position located at the starting end of the tray withdrawal groove (5) through the upper tray grooves (4); The bottom of the matrix bin (2) is provided with a plurality of discharge openings (6) the same number as the upper plate grooves (4), the discharge openings (6) are located directly above the filling position, and the filling platform (1) is provided with a plurality of gate plates (7) for controlling the opening and closing of the discharge openings (6); A disk pushing plate (8) is arranged in the disk withdrawal groove (5), and a hard brush (10) is arranged on the disk pushing plate (8); The loading platform (1) is provided with a passage (11) communicating with adjacent tray return slots (5), and the loading platform (1) is provided with a driving mechanism (9) connected to all tray push plates (8), the driving mechanism (9) drives the tray push plate (8) to push the hole tray at the loading position to move toward the end of the tray return slot (5), and the driving mechanism (9) drives the tray push plate (8) to move from the passage (11) to the starting end of the adjacent tray return slot (5); A recovery bucket (12) is arranged at the bottom of the loading platform (1), and the loading platform (1) is provided with a plurality of recovery ports (13) connected to the recovery bucket (12), and the plurality of recovery ports (13) are distributed on the movement paths of the plurality of bristle brushes (10).

2. The automatic filling device for soilless culture medium according to claim 1, characterized in that: The loading platform (1) is provided with upper plate grooves (4) and return plate grooves (5) on all four sides; the upper plate grooves (4) and return plate grooves (5) on the same side are parallel to each other, and the adjacent upper plate grooves (4) and return plate grooves (5) are perpendicular to each other.

3. The automatic filling equipment for soilless culture medium according to claim 1, characterized in that: The driving mechanism (9) comprises a central shaft (901), a transmission seat (902), a sleeve (903), a telescopic column (904) and a four-corner slide (905); the central shaft (901) is rotatably arranged on the loading platform (1); the transmission seat (902) is arranged at the lower end of the central shaft (901); sleeves (903) are arranged around the transmission seat (902) along the radial direction of the central shaft (901); The top of the loading platform (1) is provided with four strip grooves (14) arranged around the central axis (901), the strip grooves (14) are parallel to the corresponding tray withdrawal grooves (5), and are located between the tray withdrawal grooves (5) and the central axis (901), and adjacent strip grooves (14) are connected through arc grooves (15); The four-corner slide (905) is slidably matched with the strip groove (14) and the arc groove (15); the four corners of the four-corner slide (905) are distributed in a rectangular shape; the width of the four-corner slide (905) is adapted to the width of the strip groove (14) and the arc groove (15); and a recessed groove (16) is provided on the inner side of the four-corner slide (905) close to the central axis (901) and is recessed outward; when the four-corner slide (905) passes through the arc groove (15), the recessed groove (16) is used to avoid the groove wall of the inner connecting portion (19) of the arc groove (15); A cylinder (17) is arranged on the top of the four-corner slide (905), one end of the telescopic column (904) is slidably plugged into the sleeve (903), and the other end is provided with a socket (18) rotatably plugged into the cylinder (17), and one end of the push plate (8) is connected to the four-corner slide (905) through a connecting portion (19).

4. The automatic filling equipment for soilless culture medium according to claim 3, characterized in that: Rollers (20) are rotatably arranged at the four corners of the four-corner slide (905), and the four-corner slide (905) contacts the groove walls on both sides of the strip groove (14) and the arc groove (15) through the four rollers (20).

5. The automatic filling equipment for soilless culture medium according to claim 3, characterized in that: The loading platform (1) is provided with a through hole (21) connected to the recovery bucket (12), a feeding pipe (22) is inserted into the through hole (21), and an auger (24) is rotatably arranged in the feeding pipe (22) via a transmission shaft (23); The central shaft (901) is a hollow shaft, and the feeding tube (22) passes through the central shaft (901) and the channel inside the transmission seat (902); The substrate bin (2) is provided with a central hole (25), the top of the auger (24) is provided with a ring-shaped material trough (26) arranged around the central hole (25), and the material trough (26) is connected to a plurality of soil discharge ports (6); The central shaft (901) is rotatably plugged with the central hole (25), the central shaft (901) passes through the central hole (25), the top of the feeding tube (22) is not lower than the top of the central shaft (901), a transmission disc (27) is arranged at the top of the transmission shaft (23), the transmission disc (27) is spaced apart from the top of the feeding tube (22), the bottom of the feeding tube (22) is spaced apart from the inner wall of the recovery bucket (12), and the transmission disc (27) is connected to the top of the central shaft (901) through a plurality of transmission columns (28); The lower end of the transmission shaft (23) passing through the bottom of the recovery bucket (12) is provided with a transmission gear (29) for connecting to a driving device.

6. The automatic filling equipment for soilless culture medium according to claim 5, characterized in that: The transmission disc (27) is provided with a plurality of stirring claws (30) surrounding the transmission shaft (23), and the lower ends of the stirring claws (30) extend outwardly along the radial direction of the material trough (26).

7. The automatic filling equipment for soilless culture medium according to claim 1, characterized in that: The recovery port (13) is located in the passageway (11).

8. The automatic filling equipment for soilless culture medium according to claim 1, characterized in that: A groove wall at the bottom of the end of the tray-returning groove (5) is provided with a downwardly inclined slope (31), the slope (31) is located between the end of the tray-returning groove (5) and the passage (11), and the bristle brush (10) does not pass over the slope (31).

9. The automatic filling device for soilless culture medium according to claim 1, characterized in that: The width of the tray-withdrawing groove (5) is greater than the width of the hole tray. A longitudinal limit plate (32) is arranged on one side of the tray-withdrawing groove (5) close to the central axis (901). The longitudinal limit plate (32) is parallel to the tray-withdrawing groove (5). Two ends of the longitudinal limit plate (32) are plugged into the groove wall at the bottom of the tray-withdrawing groove (5) through two pairs of longitudinal adjustment pins (33). The groove wall at the bottom of the tray-withdrawing groove (5) is provided with at least two pairs of longitudinal adjustment holes (34) for the longitudinal adjustment pins (33) to be plugged in, along a direction perpendicular to the longitudinal limit plate (32).

10. The automatic filling equipment for soilless culture medium according to claim 1, characterized in that: The length of the upper plate groove (4) is greater than the length of the plug tray. Both sides of the upper plate groove (4) are provided with transverse limit plates (35) parallel to the upper plate groove (4). The spacing between the transverse limit plates (35) on both sides is adapted to the length of the plug tray. Both ends of the transverse limit plates (35) are arranged on the loading platform (1) through two pairs of transverse adjustment pins (36). At least two pairs of transverse adjustment holes (37) for inserting the transverse adjustment pins (36) are arranged on the groove walls on both sides of the upper plate groove (4) in a direction perpendicular to the transverse limit plates (35).

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