A device for layer-by-layer staggered stacking and placement of seedling-raising plug trays

Abstract

The present invention provides a device for layer-by-layer staggered stacking and placement of seedling-growing plug trays, comprising: a mobile chassis, a gantry mobile comb bar plug tray mechanism, a plug tray stack box for loading the layer-by-layer staggered stacked plug tray stacks, and a lifting and tilting placement mechanism. An opening is provided at the bottom of the plug tray stack box, and the plug tray stack box is installed in the middle of the mobile chassis. Both sides of the gantry mobile comb bar plug tray mechanism and both sides of the lifting and tilting placement mechanism are installed on the mobile chassis. The bottom of the gantry mobile comb bar plug tray mechanism is located below the plug tray stack box, and the bottom of the lifting and tilting placement mechanism is located below the gantry mobile comb bar plug tray mechanism. The present invention can automatically handle and place the plug trays, improve the work efficiency of plug tray transportation and placement, and reduce the labor intensity of users. The plug tray stack box is installed in the middle of the mobile chassis to prevent the collapse of the plug tray stacks.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural implements, and in particular to a device for layer-by-layer staggered stacking and placement of seedling-raising plug trays. Background Art

[0002] With the rapid development of the vegetable industry, the demand for factory seedling raising has been increasing year by year, and the factory seedling raising technology has developed rapidly. Plug trays are essential items in the process of factory seedling raising. After the plug trays are sown, they need to be transported to the greenhouse for management. In this process, manual handling and placement are usually required, resulting in high labor intensity and low work efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a device for layer-by-layer staggered stacking and placement of seedling-raising plug trays in view of the deficiencies of the prior art.

[0004] The technical solution of the present invention to solve the above technical problem is as follows: A device for layer-by-layer staggered stacking and placement of seedling-raising plug trays includes: a mobile chassis, a gantry mobile comb bar plugging mechanism, a plug tray stack box for loading the layer-by-layer staggered stacked plug tray stacks, and a lifting and tilting placement mechanism. An opening is provided at the bottom of the plug tray stack box, and the plug tray stack box is installed in the middle of the mobile chassis. Both sides of the gantry mobile comb bar plugging mechanism and both sides of the lifting and tilting placement mechanism are installed on the mobile chassis. The bottom of the gantry mobile comb bar plugging mechanism is located below the plug tray stack box, and the bottom of the lifting and tilting placement mechanism is located below the gantry mobile comb bar plugging mechanism.

[0005] The beneficial effect of adopting the technical solution of the present invention is: By designing a device for layer-by-layer staggered stacking and placement of seedling-raising plug trays, the plug trays are automatically transported and placed, improving the work efficiency of plug tray transportation and placement and reducing the labor intensity of users. The plug tray stack box is installed in the middle of the mobile chassis to prevent the collapse of the plug tray stack.

[0006] Further, the gantry mobile comb bar plugging mechanism includes: a pair of comb bar plugging plates, a pair of trusses, a ball screw bidirectional synchronous linear movement component, and an optical axis guide rail group. Both sides of the optical axis guide rail group are installed on the mobile chassis. A pair of trusses are slidably installed on the ball screw bidirectional synchronous linear movement component in a facing and a back sliding manner. The ball screw bidirectional synchronous linear movement component is slidably installed on the optical axis guide rail group. A pair of the comb bar plugging plates are respectively installed at the bottoms of a pair of the trusses, and a pair of the comb bar plugging plates are located below the plug tray stack box.

[0007] The beneficial effect of adopting the above further technical solution is: The comb bar plugging plates can be expanded and closed under the movement of the ball screw bidirectional synchronous linear movement component, playing a role in temporarily supporting and releasing the plug tray stack.

[0008] Further, the optical axis guide rail group includes: a pair of first optical axis guide rails, a pair of first plates, a second plate, a pair of second optical axis guide rails, a pair of I-shaped connecting plates, and a first electric push rod. The two sides of the pair of first optical axis guide rails are mounted on the moving chassis, and the pair of first optical axis guide rails are arranged parallel to each other. The two sides of the pair of first plates and the two sides of the second plate are slidably mounted on the pair of first optical axis guide rails. The pair of second optical axis guide rails are respectively mounted at the bottoms of the pair of first plates. The ball screw bidirectional synchronous linear movement component is mounted at the bottom of the second plate. The middle parts of the pair of I-shaped connecting plates are slidably mounted on the ball screw bidirectional synchronous linear movement component, and the two ends of the pair of I-shaped connecting plates are respectively slidably mounted on the pair of second optical axis guide rails. The two sides of the tops of the pair of trusses are respectively connected to the two ends of the pair of I-shaped connecting plates. One end of the first electric push rod is mounted on the moving chassis, and the other end of the first electric push rod is connected to the first plate.

[0009] The beneficial effect of adopting the above further technical solution is that: the comb bar insertion tray can be unfolded and closed under the movement of the ball screw bidirectional synchronous linear movement component, playing a role in temporarily supporting the pallet stack of seedling trays. The two second optical axis guide rails and the ball screw bidirectional synchronous linear movement component can move horizontally along the two first optical axis guide rails. When the push rod of the first electric push rod is in the static and telescopic states, it respectively controls the two second optical axis guide rails and the ball screw bidirectional synchronous linear movement component to be self-locked and move horizontally. Therefore, the first electric push rod controls the horizontal movement of the comb bar insertion tray.

[0010] Further, a plurality of comb bars adapted to the seedling trays are provided on the comb bar insertion tray, and the plurality of comb bars are arranged at intervals. The cross section of the comb bar is an isosceles trapezoid.

[0011] The beneficial effect of adopting the above further technical solution is that: to ensure a good supporting effect of the comb bars of the comb bar insertion tray on the seedling trays.

[0012] Further, the lifting and tilting placement mechanism includes: a seedling tray support plate, a pair of first guide rails, a pair of second guide rails, two pairs of connecting rods, and a pair of cross bars. The pair of first guide rails and the pair of second guide rails are both vertically mounted on the moving chassis. The pair of first guide rails are located on one side of the moving chassis, and the pair of second guide rails are located on the other side of the moving chassis. An arc track is provided at the bottom of the pair of first guide rails. The bottoms of the two pairs of connecting rods are respectively connected to the two ends of the seedling tray support plate. The pair of cross bars are respectively connected to the tops of the two pairs of connecting rods. The pair of cross bars are rotatably and vertically slidably mounted on the first guide rails and the second guide rails.

[0013] The beneficial effects of adopting the above further technical solution are as follows: The tray of the seedling tray can perform lifting and tipping movements on the first guide rail and the second guide rail, and coordinate with the comb tooth inserting tray to achieve the depalletizing and placing operations of the bottommost seedling tray in the stack of seedling trays. The setting of the arc track enables the cross bar to slide on the arc track with the bottom end of the linear guide rail without arc guide rail splicing as the center, so that the tray of the seedling tray can be tipped towards the direction with the arc track. Through the collaborative operation of the comb tooth inserting tray and the tray of the seedling tray, the lateral misaligned depalletizing and placing of the stack of seedling trays can be achieved, and multiple seedling trays can be carried and placed.

[0014] Further, the lifting and tipping type placing mechanism further includes: a pair of ball screw lifting components with nut sliders, a pair of auxiliary tipping guide rails, a pair of linear sliders adapted to the auxiliary tipping guide rails and with base bearings, and two pairs of roller sliders with base bearings. One pair of the ball screw lifting components is installed on the moving chassis. Two pairs of the roller sliders are respectively installed on one pair of the first guide rail and one pair of the second guide rail in a corresponding up-and-down sliding manner. Both sides of one pair of the cross bars are respectively rotatably installed on the base bearings of the two pairs of the roller sliders. One pair of the auxiliary tipping guide rails is respectively installed on the nut sliders of one pair of the ball screw lifting components. One pair of the linear sliders is respectively slidably installed on the auxiliary tipping guide rails. The middle parts of one pair of the cross bars are respectively rotatably installed on the base bearings of one pair of the linear sliders.

[0015] The beneficial effects of adopting the above further technical solution are as follows: The ball screw lifting components can drive the tray of the seedling tray to lift and tip along the first guide rail and the second guide rail. When the tray of the seedling tray performs the tipping action, that is, when the roller sliders descend to enter the arc track, in order to prevent the nut sliders on the ball screw lifting components from locking, the linear sliders on the auxiliary tipping guide rails will move along the auxiliary tipping guide rails under the push of the downward axial force of the nut sliders, which can ensure that the nut sliders on the ball screw lifting device continue to descend and realize the tipping action of the tray of the seedling tray.

[0016] Further, a limiting linear moving strip, a second electric push rod, two third optical axis guide rails, two linear sliders, and a T-shaped plate are installed on one side of the tray of the seedling tray. The second electric push rod and the two third optical axis guide rails are installed on the tray of the seedling tray. The limiting linear moving strip is respectively connected to one side of the two linear sliders. The two linear sliders are connected through the T-shaped plate. The two linear sliders are both slidably installed on the two third optical axis guide rails. The second electric push rod is connected to the T-shaped plate.

[0017] The beneficial effects of adopting the above further technical solution are as follows: The second electric push rod can push the T-shaped plate to move, so that the limiting linear moving strip moves back and forth linearly on the tray support plate of the seedling tray. Since the seedling trays on each layer of the seedling tray stack are staggered with each other, in order to ensure the neatness of the seedling trays placed twice before and after, by the lateral movement of the limiting linear moving strip, the seedling tray is pushed to move laterally on the tray support plate of the seedling tray, ensuring that the sliding positions of the seedling trays on the tray support of the seedling tray are the same twice before and after, so as to ensure the neatness of the seedling trays placed twice before and after.

[0018] Further, the limiting linear moving strip includes a plurality of U-shaped limiting strips adapted to the seedling trays, and the cross section of the U-shaped limiting strip is a right trapezoid.

[0019] The beneficial effects of adopting the above further technical solution are as follows: The hypotenuse of the straight trapezoid fits the outer wall of the holes on the long side of the seedling tray, playing a role in limiting the seedling tray.

[0020] Further, the arc radius of the arc track is equal to the installation distance between the first guide rail and the second guide rail.

[0021] The beneficial effects of adopting the above further technical solution are as follows: Ensure that a roller slider on the arc guide rail slides on the arc guide rail with the distance between the two straight guide rails as the radius and the bottom end of the straight guide rail without arc guide rail splicing as the center of the circle, so that the tray support plate of the seedling tray can be tilted towards the direction with the arc track.

[0022] Advantages of additional aspects of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of a device for stacking and placing seedling trays layer by layer with staggered positions provided by an embodiment of the present invention.

[0024] Figure 2 It is a schematic structural diagram of a mobile chassis provided by an embodiment of the present invention.

[0025] Figure 3 It is a schematic structural diagram of a gantry mobile comb bar inserting tray mechanism provided by an embodiment of the present invention.

[0026] Figure 4 is Figure 3 A partial enlarged view of the structure shown at A.

[0027] Figure 5 It is a schematic structural diagram of a comb bar inserting tray provided by an embodiment of the present invention.

[0028] Figure 6 It is a schematic structural diagram of an I-shaped connecting plate provided by an embodiment of the present invention.

[0029] Figure 7Schematic diagram of the state where the comb bar insertion tray provided by the embodiment of the present invention is inserted into the bottom tray stack of the tray stack box.

[0030] Figure 8 Schematic diagram of the structure of the tray stack box provided by the embodiment of the present invention.

[0031] Figure 9 For Figure 8 Partial enlarged view of the structure shown at B.

[0032] Figure 10 For Figure 8 Partial enlarged view of the structure shown at C.

[0033] Figure 11 One of the schematic diagrams of the structure of the lifting and tilting type placing mechanism provided by the embodiment of the present invention.

[0034] Figure 12 For Figure 11 Partial enlarged view of the structure shown at D.

[0035] Figure 13 For Figure 11 Partial enlarged view of the structure shown at E.

[0036] Figure 14 Schematic diagram of the state where the limiting linear moving bar limits the trays.

[0037] Figure 15 Another schematic diagram of the structure of the lifting and tilting type placing mechanism provided by the embodiment of the present invention.

[0038] Explanation of the reference numerals in the drawings: 1. Moving chassis; 2. Gantry mobile comb bar insertion tray mechanism; 3. Tray stack box; 4. Lifting and tilting type placing mechanism; 5. Comb bar insertion tray; 51. Truss; 6. Ball screw bidirectional synchronous linear moving component; 61. I-shaped connecting plate; 7. First electric push rod; 8. Optical axis guide rail group; 81. First optical axis guide rail; 82. Second optical axis guide rail; 811. First optical axis slider; 821. Second optical axis slider; 9. Tray supporting plate; 91. Third optical axis guide rail; 10. Limiting linear moving bar; 101. Linear slider; 102. T-shaped plate; 11. Second electric push rod; 12. First guide rail; 121. Roller slider; 13. Auxiliary tilting guide rail; 131. Linear slider; 14. Ball screw lifting component; 15. Front side baffle; 16. Card strip; 17. Motor driver; 18. Driving plate module of the electric push rod; 19. Controller; 20. Vertical bracket; 21. Lithium battery; 211. Battery frame; 212. Aluminum plate; 22. First plate; 23. Second plate; 24. Second guide rail; 25. Link; 26. Cross bar; 27. Arc track; 28. Tray. Detailed implementation manners

[0039] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0040] like Figures 1 to 15 As shown, an embodiment of the present invention provides a device for stacking and placing seedling trays in layers in an offset manner, comprising: a mobile chassis 1, a gantry mobile combing tray insertion mechanism 2, a tray stacking box 3 for loading stacked trays in layers in an offset manner, and a lifting and dumping placement mechanism 4, wherein the bottom of the tray stacking box 3 is provided with an opening, and the tray stacking box 3 is installed in the middle of the mobile chassis 1, and both sides of the gantry mobile combing tray insertion mechanism 2 and both sides of the lifting and dumping placement mechanism 4 are installed on the mobile chassis 1, and the bottom of the gantry mobile combing tray insertion mechanism 2 is located below the tray stacking box 3, and the bottom of the lifting and dumping placement mechanism 4 is located below the gantry mobile combing tray insertion mechanism 2.

[0041] The beneficial effects of the technical solution of the present invention are: by designing a layer-by-layer staggered stacking and placement device for seedling trays, the trays are automatically transported and placed, the efficiency of tray transportation and placement is improved, and the labor intensity of users is reduced. The tray stack box is installed in the middle of the mobile chassis to prevent the tray stack from collapsing.

[0042] The double-headed arrows in the figure represent the movement direction and movement trajectory of the corresponding components.

[0043] When working, first unstacking the hole tray stack, in the initial state, the hole tray stack is supported by the hole tray supporting plate 9, and the comb strip inserting plate 5 begins to unfold under the movement of the ball screw bidirectional synchronous linear moving component 6, and the ball screw lifting component 14 drives the hole tray supporting plate 9 to descend the height of a hole tray along the first guide rail 12 and the second guide rail 24, and the first electric push rod controls the comb strip inserting plate 5 to move horizontally. After that, the comb strip inserting plate 5 begins to close, so that the comb strip of the comb strip inserting plate 5 is inserted into the gap between the outer walls of the hole holes of the second-to-last layer of the hole tray stack. After the comb strip inserting plate 5 is closed, the hole tray supporting plate 9 drives the lifted layer of hole trays to start descending and dumping, that is, a horizontal dislocation unstacking is completed; when the hole tray supporting plate 9 is dumped to the hole tray contacting the ground, the device starts to move forward, so that the hole tray is separated from the hole tray supporting plate 9, and the plate is swung; when the next plate is swung, the second electric push rod controls the limit linear moving bar to move horizontally to ensure the neatness of the hole trays placed twice before and after.

[0044] The device for staggered stacking and placing seedling trays layer by layer is a device for storing seedling trays in a staggered manner with upper and lower layers. Three seed trays in each layer are unstackered and placed layer by layer. The device can avoid the situation where the bottom of the seedling groove of the upper layer of the seedling tray presses the groove holes of the lower layer of the seedling tray during the placement operation, prevent the matrix soil in the groove holes of the tray from falling off and the seeds from shifting, and ensure the quality of seedling cultivation in the seed trays.

[0045] The operation of the seedling-growing plug tray layer-by-layer offset stacking and placement device is simple. Through the coordinated operation of the comb bar inserting tray and the plug tray supporting plate, the horizontal offset unstacking and placement of the plug tray stack can be achieved, and multiple plug trays can be transported and placed. In addition, since the plug trays in each layer of the plug tray stack are offset from each other, in order to ensure the neatness of the plug trays placed in the front and back, the limiting linear moving bar moves horizontally to push the plug tray to move horizontally on the plug tray supporting plate, ensuring that the sliding positions of the plug trays on the plug tray supporting plate are the same in the front and back, so as to ensure the neatness of the plug trays placed in the front and back. The seedling-growing plug tray layer-by-layer offset stacking and placement device operates smoothly, with a high degree of neatness in plug tray placement, saving the manual handling labor of the plug trays after sowing, and improving the operation efficiency of the plug tray transportation and placement in factory seedling cultivation.

[0046] As Figures 1 to 15 shown, further, the gantry mobile comb bar inserting tray mechanism 2 includes: a pair of comb bar inserting trays 5, a pair of trusses 51, a ball screw bidirectional synchronous linear moving component 6, and an optical axis guide group 8. The two sides of the optical axis guide group 8 are installed on the moving chassis 1. A pair of trusses 51 are installed on the ball screw bidirectional synchronous linear moving component 6 to slide towards and away from each other. The ball screw bidirectional synchronous linear moving component 6 is slidably installed on the optical axis guide group 8. A pair of the comb bar inserting trays 5 are respectively installed at the bottoms of a pair of the trusses 51. A pair of the comb bar inserting trays 5 are located below the plug tray stack box 3.

[0047] The beneficial effect of adopting the above further technical solution is that the comb bar inserting tray can be expanded and closed under the movement of the ball screw bidirectional synchronous linear moving component, playing a role in temporarily supporting and releasing the plug tray stack.

[0048] As Figures 1 to 15 shown, further, the optical axis guide group 8 includes: a pair of first optical axis guides 81, a pair of first plates 22, a second plate 23, a pair of second optical axis guides 82, a pair of I-shaped connecting plates 61, and a first electric push rod 7. The two sides of a pair of the first optical axis guides 81 are installed on the moving chassis 1. A pair of the first optical axis guides 81 are arranged in parallel with each other. The two sides of a pair of the first plates 22 and the two sides of the second plate 23 are all slidably installed on a pair of the first optical axis guides 81. A pair of the second optical axis guides 82 are respectively installed at the bottoms of a pair of the first plates 22. The ball screw bidirectional synchronous linear moving component 6 is installed at the bottom of the second plate 23. The middle parts of a pair of the I-shaped connecting plates 61 are slidably installed on the ball screw bidirectional synchronous linear moving component 6. The two ends of a pair of the I-shaped connecting plates 61 are respectively slidably installed on a pair of the second optical axis guides 82. The two sides of the tops of a pair of the trusses 51 are respectively connected to the two ends of a pair of the I-shaped connecting plates 61. One end of the first electric push rod 7 is installed on the moving chassis 1, and the other end of the first electric push rod 7 is connected to the first plate 22.

[0049] The beneficial effects of adopting the above further technical solution are as follows: The comb bar insertion tray can be unfolded and closed under the movement of the bidirectional synchronous linear movement component of the ball screw, playing a role in temporarily supporting the pallet stack of the plug trays. The two second optical axis guide rails and the bidirectional synchronous linear movement component of the ball screw can move horizontally along the two first optical axis guide rails. When the push rod of the first electric push rod is in the static and telescopic states, it controls the self-locking and horizontal movement of the two second optical axis guide rails and the bidirectional synchronous linear movement component of the ball screw respectively. Therefore, the first electric push rod controls the horizontal movement of the comb bar insertion tray.

[0050] As Figures 1 to 15 shown, further, a plurality of comb bars adapted to the plug trays are provided on the comb bar insertion tray 5, the plurality of comb bars are arranged at intervals, and the cross section of the comb bar is an isosceles trapezoid.

[0051] The beneficial effects of adopting the above further technical solution are as follows: To ensure a good supporting effect of the comb bars of the comb bar insertion tray on the plug trays.

[0052] As Figures 1 to 15 shown, further, the lifting and tipping type placement mechanism 4 includes: a plug tray support plate 9, a pair of first guide rails 12, a pair of second guide rails 24, two pairs of connecting rods 25, and a pair of cross bars 26. The pair of first guide rails 12 and the pair of second guide rails 24 are both vertically installed on the moving chassis 1. The pair of first guide rails 12 are located on one side of the moving chassis 1, and the pair of second guide rails 24 are located on the other side of the moving chassis 1. An arc track 27 is provided at the bottom of the pair of first guide rails 12. The bottoms of the two pairs of connecting rods 25 are connected to the two ends of the plug tray support plate 9 respectively. The pair of cross bars 26 are connected to the tops of the two pairs of connecting rods 25 respectively. The pair of cross bars 26 are rotatably and vertically slidably installed on the first guide rails 12 and the second guide rails 24.

[0053] The beneficial effects of adopting the above further technical solution are as follows: The plug tray support plate can perform lifting and tipping movements on the first guide rails and the second guide rails, and coordinate with the comb bar insertion tray to achieve the depalletizing and placement operations of the bottommost plug tray of the pallet stack of the plug trays. The setting of the arc track enables the cross bar to slide on the arc track with the bottom end of the linear guide rail without arc guide rail splicing as the center of the circle, so that the plug tray support plate can be tipped towards the direction with the arc track. Through the coordinated operation of the comb bar insertion tray and the plug tray support plate, the horizontal misaligned depalletizing and placement of the pallet stack of the plug trays can be achieved, and multiple plug trays can be transported and placed.

[0054] As Figures 1 to 15As shown in the figure, further, the lifting and tipping placement mechanism 4 further includes: a pair of ball screw lifting components 14 with nut sliders, a pair of auxiliary tipping guide rails 13, a pair of linear sliders 131 adapted to the auxiliary tipping guide rails 13 and with base bearings, and two pairs of roller sliders 121 with base bearings. A pair of the ball screw lifting components 14 are installed on the moving chassis 1. Two pairs of the roller sliders 121 are slidably installed on a pair of the first guide rails 12 and a pair of the second guide rails 24 in a one-to-one correspondence and vertically. Both sides of a pair of the cross bars 26 are rotatably installed on the base bearings of two pairs of the roller sliders 121. A pair of the auxiliary tipping guide rails 13 are installed on the nut sliders of a pair of the ball screw lifting components 14 in a one-to-one correspondence. A pair of the linear sliders 131 are slidably installed on the auxiliary tipping guide rails 13 in a one-to-one correspondence. The middle parts of a pair of the cross bars 26 are rotatably installed on the base bearings of a pair of the linear sliders 131.

[0055] The beneficial effects of adopting the above further technical solution are as follows: The ball screw lifting component can drive the tray support plate to lift and tip along the first guide rail and the second guide rail. When the tray support plate performs a tipping action, that is, when the roller slider descends to enter the arc track, in order to prevent the nut slider on the ball screw lifting component from locking, the linear slider on the auxiliary tipping guide rail will move along the auxiliary tipping guide rail under the push of the downward axial force of the nut slider, which can ensure that the nut slider on the ball screw lifting device continues to descend and realize the tipping action of the tray support plate.

[0056] As Figures 1 to 15 As shown in the figure, further, one side of the tray support plate 9 is provided with a limit linear movement bar 10, a second electric push rod 11, two third optical axis guide rails 91, two linear sliders 101, and a T-shaped plate 102. The second electric push rod 11 and the two third optical axis guide rails 91 are installed on the tray support plate 9. The limit linear movement bar 10 is respectively connected to one side of the two linear sliders 101. The two linear sliders 101 are connected by the T-shaped plate 102. The two linear sliders 101 are both slidably installed on the two third optical axis guide rails 91. The second electric push rod 11 is connected to the T-shaped plate 102.

[0057] The beneficial effects of adopting the above further technical solution are as follows: The second electric push rod can push the T-shaped plate to move, so that the limit linear movement bar moves back and forth linearly on the tray support plate. Since the trays on each layer of the tray stack are mutually misaligned, in order to ensure the neatness of placing the trays twice before and after, by the lateral movement of the limit linear movement bar, the tray is pushed to move laterally on the tray support plate, ensuring that the downward sliding positions of the trays on the tray support are the same twice before and after, thereby ensuring the neatness of placing the trays twice before and after.

[0058] As Figures 1 to 15As shown, further, the limiting linear moving strip 10 includes a plurality of U-shaped limiting strips adapted to the seedling tray, and the cross-section of the U-shaped limiting strip is a right trapezoid.

[0059] The beneficial effect of adopting the above further technical solution is that the hypotenuse of the straight trapezoid fits against the outer wall of the holes on the long side of the seedling tray, playing a role in limiting the seedling tray.

[0060] As Figures 1 to 15 shown, further, the arc radius of the arc track 27 is equal to the installation distance between the first guide rail and the second guide rail.

[0061] The beneficial effect of adopting the above further technical solution is that it ensures that a roller slider on the arc guide rail slides on the arc guide rail with the distance between the two linear guide rails as the radius and the bottom end of the linear guide rail without arc guide rail splicing as the center of the circle, so that the seedling tray support plate can be tilted towards the direction with the arc track.

[0062] A device for layer-by-layer staggered stacking and placing of seedling trays provided by an embodiment of the present invention includes a moving chassis 1, a gantry mobile comb strip inserting tray device 2, a seedling tray stack box 3, and a lifting and tilting placing mechanism 4; the moving chassis 1 is built with an overall frame made of aluminum, with vertical brackets 20 on both sides, and battery frames 211 are built on both sides of the bottom of the moving chassis for storing lithium batteries 21 to provide power for the overall device. The lithium batteries 21 are fixed in the battery frames 211 through aluminum plates 212, and the lithium batteries 21 on both sides are connected to the motor driver 17, the drive board module 18 of the electric push rod, and the controller 19 on the device to supply power to the motors and electric push rods on the device; the motor driver 17 on the moving chassis 1 is installed on the outer wall of the vertical bracket 20, the ball screw bidirectional synchronous linear moving component 6 and the motor driver 17 on the ball screw lifting component 14 are respectively installed above the second plate 23 and the top of the vertical bracket 20, and the drive board module 18 of the electric push rod and the controller 19 are installed on the top of the vertical bracket 20 on one side.

[0063] The described gantry - type comb - bar inserting plate device 2 is fixedly installed at the top of the vertical brackets 20 on both sides of the mobile chassis 1 through aluminum materials, and is composed of a comb - bar inserting plate 5, a ball - screw bidirectional synchronous linear moving component 6, a first electric push rod 7, and an optical axis guide rail group 8. The optical axis guide rail group 8 is vertically and perpendicularly distributed in two layers of optical axis guide rails (i.e., the first optical axis guide rail and the second optical axis guide rail) in the vertical space direction. Two first optical axis guide rails 81 are parallel to each other and are fixed to the aluminum material through optical axis clamps at both ends. Each of the two first optical axis guide rails 81 is sleeved with 3 first optical axis sliders 811. The first optical axis slider 811 in the middle position among the 3 first optical axis sliders 811 is located at the middle position of the first optical axis guide rail 81, and the positions of the first optical axis sliders 811 on the other two sides are symmetric with respect to the middle position of the guide rail. The first sheet material 22 and the second sheet material 23 are respectively installed below the first optical axis sliders 811 on both sides and the first optical axis slider 811 in the middle position of the first optical axis guide rail 81. Two second optical axis guide rails 82 are fixed to the first sheet material 22 through vertical optical axis clamps. Each of the two second optical axis guide rails 82 is sleeved with 2 second optical axis sliders 821, and the 2 second optical axis sliders 821 are symmetrically distributed with respect to the middle position of the second optical axis guide rail 82. The ball - screw bidirectional synchronous linear moving component 6 is fixed below the second sheet material 23. Therefore, the two second optical axis guide rails 82 and the ball - screw bidirectional synchronous linear moving component 6 can move horizontally along the two first optical axis guide rails 81.

[0064] Two nut sliders on the ball - screw bidirectional synchronous linear moving component 6 are connected to the middle position of two I - shaped connecting plates 61. The upper plate surfaces at both ends of the I - shaped connecting plate 61 are fixedly connected to the second optical axis sliders 821 on the two second optical axis guide rails 82. The comb - bar inserting plate 5 is connected to the lower plate surfaces at both ends of the I - shaped connecting plate 61 through the top of a truss 51 made of aluminum materials. Therefore, the comb - bar inserting plate 5 is connected to the second optical axis sliders 821 on the two second optical axis guide rails 82 through the I - shaped connecting plate 61. Thus, the comb - bar inserting plate 5 can realize the unfolding and closing movements under the movement of the ball - screw bidirectional synchronous linear moving component 6. The first electric push rod 7 is fixed to the aluminum material connected to the top of the vertical bracket 20 on one side of the mobile chassis 1, and the top of the first electric push rod is connected to the first sheet material 22. Since the I - shaped connecting plate 61 connects the two nut sliders on the ball - screw bidirectional synchronous linear moving component 6 and the second optical axis sliders 821 on the two second optical axis guide rails 82, therefore, when the push rod of the first electric push rod 7 is in the static and telescopic states, it can respectively control the two second optical axis guide rails 82 and the ball - screw bidirectional synchronous linear moving component 6 to be self - locked and move horizontally. Thus, the first electric push rod 7 controls the horizontal movement of the comb - bar inserting plate 5.

[0065] The bottom of the described plug tray stack box 3 is penetrated and fixed at the central position of the mobile chassis 1 by aluminum materials, realizing the top-down transportation of each layer of plug trays 28 in the plug tray stack; preventing the collapse of the plug tray stack. The described lifting and tilting placement mechanism 4 is composed of a plug tray support plate 9, a limit linear moving strip 10, a second electric push rod 11, a first guide rail 12 and a second guide rail 24, an auxiliary tilting guide rail 13, and a ball screw lifting component 14; the first guide rail 12 and the second guide rail 24 and the ball screw lifting component 14 are installed on the vertical bracket 20 of the mobile chassis 1; roller sliders 121 are installed on the first guide rail 12 and the second guide rail 24, and a pedestal bearing is fixed to each roller slider 121; the nut slider on the ball screw lifting component 14 is fixed with an auxiliary tilting guide rail 13, and a linear slider 131 is installed on the auxiliary tilting guide rail 13, and the linear slider 131 is fixed with a pedestal bearing; the plug tray support plate 9 is connected to the pedestal bearings on the roller slider 121 and the linear slider 131 through a connecting rod 25, a cross bar 26 and a connecting rod fixing piece. Therefore, the ball screw lifting component 14 can drive the plug tray support plate 9 to lift and tilt along the first guide rail 12 and the second guide rail 24; since the pedestal bearing on the linear slider 131 is connected to the cross bar 26 connected to the plug tray support plate 9, when the plug tray support plate 9 performs a tilting action, that is, when the roller slider 121 descends to enter the arc track 27, to prevent the nut slider on the ball screw lifting component 14 from locking, the linear slider 131 on the auxiliary tilting guide rail 13 will move along the auxiliary tilting guide rail 13 under the push of the downward axial force of the nut slider, ensuring that when the plug tray support plate 9 performs a tilting action, the nut slider on the ball screw lifting component 14 can continue to descend, realizing the tilting action of the plug tray support plate 9.

[0066] Two third optical axis guide rails 91 are fixed to the edge of the plug tray support plate 9; two linear sliders 101 are fixed to the limit linear moving strip 10, a T-shaped plate 102 is welded between the two linear sliders 101, the two linear sliders 101 are sleeved on the two third optical axis guide rails 91, the second electric push rod 11 is installed on the plug tray support plate 9, the push rod is connected to the T-shaped plate 102, and the second electric push rod 11 can push the T-shaped plate 102 to move, so that the limit linear moving strip 10 reciprocates linearly on the plug tray support plate 9.

[0067] The bottom of the plug tray stack box 3 is penetrated, and the front side baffle 15 can be disassembled along the front side direction of the box body, and the front side baffle 15 is self-locked through a clamping strip 16 to facilitate the loading of the plug trays 28.

[0068] The cross-section of the comb bars of the comb bar insertion tray 5 is designed in the shape of an isosceles trapezoid, and the base angle of the isosceles trapezoid is equal to the inclination angle of the outer wall of the 28-hole of the seedling tray. The length of the upper side of the isosceles trapezoid is equal to the distance between the adjacent hole edges in the wide side direction of the seedling tray 28. The height of the isosceles trapezoid is less than the height of the slot hole of the seedling tray, so as to ensure a good supporting effect of the comb bars of the comb bar insertion tray 5 on the seedling tray 28. The spacing between the comb bars of the comb bar insertion tray 5 is equal to the center distance between the adjacent holes in the wide side direction of the seedling tray 28.

[0069] The first guide rail 12 and the second guide rail 24 are arranged in parallel at a certain distance by two linear guide rails and installed on the vertical bracket 20 of the moving chassis 1. One of the linear guide rails (the first guide rail) is spliced with an arc guide rail (arc track). The arc radius of the arc guide rail is equal to the distance between the two linear guide rails (the second guide rail), so as to ensure that a roller slider 121 on the arc guide rail slides on the arc guide rail with the distance between the two linear guide rails as the radius and the bottom end of the linear guide rail without arc guide rail splicing as the center, so that the seedling tray support plate 9 can be tilted towards the direction with the arc track.

[0070] The limiting linear moving bar 10 is composed of three groups of U-shaped limiting bars. The cross-section of the limiting bar in the U-shaped limiting bar is designed in the shape of a right trapezoid. The included angle between the bottom edge and the hypotenuse of the right trapezoid is equal to the inclination angle of the outer wall of the 28-hole of the seedling tray. The height and the bottom edge length of the right trapezoid are respectively less than the height of the slot hole of the seedling tray and the width of the bottom of the slot of the seedling tray. The hypotenuse of the right trapezoid is attached to the outer wall of the hole on the long side of the seedling tray 28, playing a role in limiting the seedling tray 28.

[0071] The seedling trays in the seedling tray stacking and placing device are stacked in a way that the upper and lower three trays of the seedling trays 28 are mutually misaligned and stored in the seedling tray stack box 3. Since the bottom of the seedling tray stack box 3 is penetrated, when the seedling tray stacking and placing device is unstacked, the seedling tray stack is unstacked layer by layer, with three seedling trays in each layer. In the initial state of the seedling tray stacking and placing device, the comb bar insertion tray 5 is in a closed state, and the comb bars are inserted into the gaps between the outer walls of the holes of the bottom layer of the seedling trays, and the seedling tray support plate 9 supports the seedling tray stack.

[0072] During operation, first, unstacking is carried out, and the ball screw bidirectional synchronous linear moving component 6 pushes the comb sliver insert plate 5 to unfold. When it unfolds to the second optical axis slider 821 and moves to the two ends of the two second optical axis guide rails 82, the ball screw lifting component 14 drives the hole tray support plate 9 to drop the height of a hole tray, and the first electric push rod 7 controls the comb sliver insert plate 5 to move horizontally by the dislocation distance of the upper and lower hole trays. After that, the comb sliver insert plate 5 begins to close, so that the comb sliver is inserted into the gap between the outer walls of the hole holes of the second-to-last layer of the hole tray stack. After the comb sliver insert plate 5 is closed, the hole tray support plate 9 lifts the original bottom hole tray and starts to descend. The hole tray stack is supported by the comb sliver insert plate 5, that is, the horizontal dislocation unstacking of the hole tray stack is completed; the ball screw lifting component 14 is the power source of the hole tray support plate 9, which makes the hole tray support plate 9 rise and fall and dump on the first guide rail 12 and the second guide rail 24; when the hole tray support plate 9 enters the dumping process, in order to ensure the ball screw lifting component The nut slider on 14 continues to descend to realize the dumping action of the hole tray support plate 9, and the auxiliary dumping guide rail 13 plays a vital role. Since the bearing with a base on the linear slider 131 is connected to the connecting rod and the cross bar connected to the hole tray support plate 9, it can compensate for the torsion of the nut slider on the ball screw lifting component 14 when the hole tray support plate 9 is dumping. Therefore, when the hole tray support plate 9 enters the dumping action, that is, when the roller slider 121 descends to enter the arc track, the linear slider 131 on the auxiliary dumping guide rail 13 will move along the auxiliary dumping guide rail 13 under the push of the downward axial force of the nut slider, making up for the radial displacement of the nut slider on the ball screw lifting component 14 when the hole tray support plate 9 is dumping. When the hole tray support plate 9 enters the dumping process, the nut slider on the ball screw lifting component 14 can continue to descend to realize the dumping action of the hole tray support plate 9.

[0073] After unstacking is completed, the hole tray support plate 9 lifts a certain layer of hole trays to transport them to the ground. When it descends to a specified height, the hole tray support plate 9 begins to dump. Due to the limiting effect of the limiting linear moving bar 10 on the hole tray, the hole tray 28 will not slide sideways during the downward movement, ensuring the neatness of the three hole trays. When the hole tray touches the ground, the mobile chassis drives the entire device to move forward, so that the hole tray is separated from the hole tray support plate 9, and the tray placement is completed; before the hole tray support plate 9 is reset to support the hole tray stack, the second electric push rod 1 is used to push the hole tray 28 to the ground. 1 will control the limiting linear moving bar 10 to move horizontally by the misalignment distance between the stacked upper and lower layer of cell trays, and start to limit the position of a layer of cell trays for the next tray placement; after the cell tray stack is horizontally misaligned and unstackered, when the ball screw lifting component 14 drives the cell tray supporting plate 9 to descend until it is about to enter the dumping action, the second electric push rod 11 controls the limiting linear moving bar 10 to reset horizontally, and pushes the cell tray to move horizontally on the cell tray supporting plate 9, ensuring that the cell tray slides down twice on the cell tray tray (i.e., the cell tray supporting plate) at the same position, thereby ensuring the neatness of the cell tray placement twice.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for stacking and arranging seedling-growing plug trays layer by layer with dislocation, characterized in that Including: A mobile chassis (1), a gantry mobile comb plate inserting mechanism (2), a plug tray stack box (3) for loading plug tray stacks stacked layer by layer with dislocation, and a lifting and tilting placement mechanism (4). An opening is provided at the bottom of the plug tray stack box (3). The plug tray stack box (3) is installed in the middle of the mobile chassis (1). Both sides of the gantry mobile comb plate inserting mechanism (2) and both sides of the lifting and tilting placement mechanism (4) are installed on the mobile chassis (1). The bottom of the gantry mobile comb plate inserting mechanism (2) is located below the plug tray stack box (3), and the bottom of the lifting and tilting placement mechanism (4) is located below the gantry mobile comb plate inserting mechanism (2). The gantry mobile comb plate inserting mechanism (2) includes: a pair of comb plates (5), a pair of trusses (51), a ball screw bidirectional synchronous linear movement component (6), and an optical axis guide rail group (8). Both sides of the optical axis guide rail group (8) are installed on the mobile chassis (1). A pair of trusses (51) are installed on the ball screw bidirectional synchronous linear movement component (6) to slide towards and away from each other. The ball screw bidirectional synchronous linear movement component (6) is slidably installed on the optical axis guide rail group (8). A pair of the comb plates (5) are respectively installed at the bottoms of a pair of the trusses (51). A pair of the comb plates (5) are located below the plug tray stack box (3). The optical axis guide rail group (8) includes: a pair of first optical axis guide rails (81), a pair of first plates (22), a second plate (23), a pair of second optical axis guide rails (82), a pair of I-shaped connecting plates (61), and a first electric push rod (7). Both sides of a pair of the first optical axis guide rails (81) are installed on the mobile chassis (1). A pair of the first optical axis guide rails (81) are arranged in parallel. Both sides of a pair of the first plates (22) and both sides of the second plate (23) are slidably installed on a pair of the first optical axis guide rails (81). A pair of the second optical axis guide rails (82) are respectively installed at the bottoms of a pair of the first plates (22). The ball screw bidirectional synchronous linear movement component (6) is installed at the bottom of the second plate (23). The middle parts of a pair of the I-shaped connecting plates (61) are slidably installed on the ball screw bidirectional synchronous linear movement component (6). The two ends of a pair of the I-shaped connecting plates (61) are respectively slidably installed on a pair of the second optical axis guide rails (82). The two sides of the tops of a pair of the trusses (51) are respectively connected to the two ends of a pair of the I-shaped connecting plates (61). One end of the first electric push rod (7) is installed on the mobile chassis (1), and the other end of the first electric push rod (7) is connected to the first plate (22).

2. The device for layer-by-layer staggered stacking and placement of seedling raising plug trays according to claim 1, wherein, A plurality of combs adapted to the plug trays are provided on the comb plate (5). The plurality of combs are arranged at intervals. The cross section of the comb is an isosceles trapezoid.

3. The layer-by-layer misaligned stacking and placement device for a seedling-growing plug tray according to claim 1, wherein, The lifting and tilting placement mechanism (4) includes: a tray support plate (9), a pair of first guide rails (12), a pair of second guide rails (24), two pairs of connecting rods (25), and a pair of cross bars (26). The pair of first guide rails (12) and the pair of second guide rails (24) are both vertically installed on the mobile chassis (1). The pair of first guide rails (12) is located on one side of the mobile chassis (1), and the pair of second guide rails (24) is located on the other side of the mobile chassis (1). An arc track (27) is provided at the bottom of the pair of first guide rails (12). The bottoms of the two pairs of connecting rods (25) are respectively connected to the two ends of the tray support plate (9). The pair of cross bars (26) are respectively connected to the tops of the two pairs of connecting rods (25). The pair of cross bars (26) is rotatably and vertically slidably installed on the first guide rails (12) and the second guide rails (24).

4. A device for stacking and placing seedling-growing plug trays layer by layer with staggered positions, according to claim 3, characterized in that The lifting and tilting placement mechanism (4) further includes: a pair of ball screw lifting components (14) with nut sliders, a pair of auxiliary tilting guide rails (13), a pair of linear sliders (131) adapted to the auxiliary tilting guide rails (13) and with base bearings, and two pairs of roller sliders (121) with base bearings. The pair of ball screw lifting components (14) is installed on the mobile chassis (1). The two pairs of roller sliders (121) are respectively vertically slidably installed on the pair of first guide rails and the pair of second guide rails. The two sides of the pair of cross bars are respectively rotatably installed on the base bearings of the two pairs of roller sliders (121). The pair of auxiliary tilting guide rails (13) is respectively installed on the nut sliders of the pair of ball screw lifting components (14). The pair of linear sliders (131) is respectively slidably installed on the auxiliary tilting guide rails (13). The middle parts of the pair of cross bars are respectively rotatably installed on the base bearings of the pair of linear sliders (131).

5. A device for stacking and arranging nursery plug trays layer by layer with staggered positions, as described in claim 3, characterized in that A limit linear movement bar (10), a second electric push rod (11), two third optical axis guide rails (91), two linear sliders (101), and a T-shaped plate (102) are installed on one side of the tray support plate (9). The second electric push rod (11) and the two third optical axis guide rails (91) are installed on the tray support plate (9). The limit linear movement bar (10) is respectively connected to one side of the two linear sliders (101). The two linear sliders (101) are connected by the T-shaped plate (102). The two linear sliders (101) are both slidably installed on the two third optical axis guide rails (91). The second electric push rod (11) is connected to the T-shaped plate (102).

6. The device for layer-by-layer staggered stacking and placement of seedling-raising plug trays according to claim 5, characterized in that, The limit linear movement bar (10) includes a plurality of U-shaped limit bars adapted to the trays, and the cross section of the U-shaped limit bar is a right trapezoid.

7. A device for stacking and arranging nursery seedling plug trays layer by layer with staggered positions, as described in claim 3, wherein The arc radius of the arc track (27) is equal to the installation distance between the first guide rail (12) and the second guide rail (24).

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