Feeding and discharging system for forestry seedling bed

Abstract

The invention relates to the technical field of forestry feeding and discharging, in particular to a forestry seedling raising bed feeding and discharging system which comprises a machine body and a seedling raising plate composed of three seedling plate single bodies and further comprises a seedling raising bed body arranged in the middle of the machine body, and the seedling raising bed body comprises four containing sand tables used for containing the seedling raising plates at equal intervals in the circumferential direction; the feeding mechanism is arranged on the left side of the machine body and comprises a feeding tool used for conveying seedling tray single bodies to the containing sand table to form seedling raising trays. The seedling raising bed body is arranged in the middle of the machine body through the center support, the seedling raising bed body is used in cooperation with the dip angle tool and the discharging tool, and meanwhile the discharging tool corresponding to the transverse section is arranged through the extension support; the damping rotating shaft provided with the limiting ratchet wheel and the material pushing star disc is limited in a stepping mode through the deflection stop lever, and the seedling tray single bodies located on the ladder-shaped discharging table can only move one by one in cooperation with inertia in the downward moving process of the seedling tray single bodies.

Description

Technical Field

[0001] The invention relates to the technical field of forestry loading and unloading, and in particular to a forestry seedling bed loading and unloading system. Background Art

[0002] Forestry nurseries are specialized facilities used to cultivate tree seedlings. Mechanized or automated equipment is used for substrate laying, seed sowing, and seedling management. Efficient loading and unloading systems are crucial for ensuring efficient and high-quality seedling production. While traditional bucket elevators or screw conveyors can effectively load and unload substrate, water, and fertilizer in nursery beds, these conveying mechanisms are difficult to achieve with seedling trays.

[0003] The existing seedling bed with a loading and unloading structure is a forestry seedling bed loading device and operation method disclosed in the announcement number CN115872170B. The seedling beds are placed one by one in an overlapping manner, and the seedling beds can also be taken out one by one. The frame and the two slots position the seedling bed device to prevent movement, while ensuring the relative positions of the seedling bed and the inclined surface, and ensuring that the supporting device can support the seedling bed device, so as to facilitate the convenient storage and retrieval of the seedling bed in the loading mode and the retrieval mode. However, on the machine tool, only the mode conversion device and the supporting device are used to lift, support and limit the seedling bed device, which only facilitates manual or mechanical removal and only realizes the height position lifting in the vertical direction. There is a lack of supporting loading and unloading measures, and it is difficult to realize the complex loading and unloading movements of the seedling bed device during the seedling raising process. In particular, as the seedling raising process progresses, there are many differences in the loading and unloading operations, especially the differences between the individual seedling bed device units, which makes loading and unloading more complicated. The use of centralized transportation is very likely to cause mutual influence between the individual seedling bed device units. Just like the loading and unloading device for the forestry seedling bed disclosed in the announcement number CN113911713B, it can play a role in loading and unloading seedlings through the coordinated use of the pushing mechanism and the placing mechanism. During use, the push plate will move with the action of the conveyor belt, but the seedling tray shown is only limited to the loading and unloading adjustment on the same horizontal plane, height or simple seedling bed. The transmission of the seedling tray can only be controlled by the conveyor belt, which is difficult to cooperate with the seedling bed with height difference and position difference. It is very easy to cause the seedling tray to accumulate and block during the loading and unloading process, and even cause the seedling tray to fall off from the seedling bed, seriously affecting the normal progress of forestry seedling operations. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that it is difficult to load and unload seedling trays in an orderly manner on a seedling bed, and to propose a feeding and unloading system for a forestry seedling bed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A feeding and discharging system for forestry seedling raising beds, including a machine body and a seedling raising tray composed of three single seedling trays, further including:

[0007] A seedling raising bed body, which is arranged in the middle position of the machine body, and the seedling raising bed body includes four groups of placement sand trays for circumferentially and equidistantly placing seedling trays;

[0008] A feeding mechanism, which is arranged on the left side of the machine body, and the feeding mechanism includes a feeding tooling for conveying single seedling trays to form a seedling tray onto the placement sand tray;

[0009] A discharging mechanism, which is arranged on the right side of the machine body, and the discharging mechanism includes a discharging tooling for receiving three single seedling trays separated from the seedling tray on the placement sand tray.

[0010] Preferably, the machine body includes:

[0011] A central support, and the central support is in a U-shaped structure with an upward opening;

[0012] A left stress support, and the left stress support is fixedly connected to the left side of the central support;

[0013] A right stress support, and the right stress support is fixedly connected to the right side of the central support.

[0014] Preferably, the seedling raising bed body is located between the feeding mechanism and the discharging mechanism through the central support, the feeding mechanism corresponds to a group of placement sand trays at the left position through the left stress support, and the discharging mechanism corresponds to a group of placement sand trays at the right position through the right stress support.

[0015] Preferably, the seedling raising bed body further includes:

[0016] A load-bearing rotating shaft, and the load-bearing rotating shaft is rotatably installed on the central support;

[0017] A four-corner star-shaped support, and the four-corner star-shaped support is fixedly installed on the load-bearing rotating shaft, and the four-corner star-shaped support is used for circumferentially and equidistantly distributing four groups of placement sand trays;

[0018] An inclination tooling, and the inclination tooling is arranged on the central support in cooperation with the feeding tooling, and the inclination tooling at the left position is used to adjust the left inclination of the placement sand tray on the same side, and the inclination tooling at the right position is used to adjust the right inclination of the placement sand tray on the same side;

[0019] A blanking tooling, and the blanking tooling is arranged in the placement sand tray, and the blanking tooling is arranged in the placement sand tray in cooperation with the inclination tooling, and the blanking tooling is used to control the horizontal arrangement or vertical falling of the three single seedling trays on the placement sand tray.

[0020] Preferably, the placement sand tray is movably sleeved on the four-corner star-shaped support.

[0021] Preferably, the feeding mechanism further comprises:

[0022] The feeding platform is fixedly connected to the stress bracket on the left side, and the feeding platform transports the seedling tray units to a group of sand trays located on the left side through the loading tooling.

[0023] Preferably, the feeding platform is used to convert longitudinally stacked seedling trays into transversely placed seedling tray units.

[0024] Preferably, the blanking mechanism further comprises:

[0025] A ladder-shaped unloading platform is fixedly mounted on the right stress bracket, and the ladder-shaped unloading platform corresponds to a set of sand trays located on the right side;

[0026] An extension bracket is arranged on the right stress bracket in conjunction with the ladder-shaped blanking platform, and the extension bracket is used to set the blanking tooling.

[0027] Preferably, the ladder-shaped unloading platform includes a first oblique section, a second oblique section and a transverse section connected in sequence.

[0028] Preferably, the extension bracket is arranged corresponding to the transverse section of the ladder-shaped unloading platform.

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

[0030] 1. The present invention uses a central bracket to set a seedling bed in the middle of the body, wherein four groups of sand trays are set using a load-bearing rotating shaft and a four-pointed star-shaped bracket, so that each sand tray can be used to place a seedling tray consisting of three seedling tray units. When used in conjunction with an inclination tool and a blanking tool, the two groups of sand trays in the upper and lower positions always maintain a vertical state to facilitate seedling cultivation, and the two groups of sand trays in the left and right positions can be tilted to the left or right to facilitate the three seedling tray units to be arranged horizontally when loading and to be moved vertically downward when unloading.

[0031] 2. The present invention utilizes the left stress support to set up a loading mechanism corresponding to a group of sand trays on the left side, wherein the feeding platform is used to adjust the longitudinal stacking of the seedling tray units to the lateral distribution, and then the loading tooling is used to transport the laterally distributed seedling tray units one by one, so that the seedling tray units in a group of three can be transported in an orderly manner to a group of sand trays on the left to form a seedling tray, and then the seedling bed is used to dynamically cultivate the forestry seedlings in the seedling tray.

[0032] 3. The present invention utilizes the stress bracket on the right side to set up a feeding mechanism corresponding to a group of sand trays on the right side, wherein a ladder-shaped feeding platform is utilized to receive the downward-moving seedling tray units, and an extension bracket is utilized to set up a feeding tool corresponding to the transverse section, and a deflection lever elastically pulled by a reset spring is provided, and the deflection lever is utilized to perform step-by-step limiting on the damping shaft on which the limiting ratchet and the pushing star plate are installed, so that the inertia of the seedling tray units during their downward movement can only enable the seedling tray units located on the ladder-shaped feeding platform to move one by one. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a structural diagram of a feeding and unloading system for a forestry seedling bed proposed by the present invention;

[0034] Figure 2 This is a bottom view of a feeding and unloading system for a forestry nursery bed proposed by the present invention;

[0035] Figure 3 This is a schematic diagram of the structure of a seedling bed for a forestry seedling bed loading and unloading system proposed by the present invention;

[0036] Figure 4 A cross-sectional view of the structure of a seedling bed for a forestry seedling bed loading and unloading system proposed by the present invention;

[0037] Figure 5 A top view of the seedling bed structure of a forestry seedling bed loading and unloading system proposed by the present invention;

[0038] Figure 6 This is a schematic diagram of the structure of a sand tray, an inclination tool and a blanking tool for a material feeding and unloading system for a forestry nursery bed proposed by the present invention;

[0039] Figure 7 This is a structural diagram of a feeding mechanism of a feeding and unloading system for a forestry nursery bed proposed by the present invention;

[0040] Figure 8 This is a cross-sectional view of the structure of the feeding mechanism of the feeding and unloading system of the forestry nursery bed proposed by the present invention;

[0041] Figure 9 This is a structural diagram of a feeding mechanism of a feeding and unloading system for a forestry nursery bed proposed by the present invention;

[0042] Figure 10 This is a bottom view of the structure of the material discharging mechanism of the material discharging system for a forestry nursery bed proposed by the present invention;

[0043] Figure 11 This is a schematic diagram of the structure of a damping shaft and a pushing star disk of a feeding and unloading system for a forestry nursery bed proposed by the present invention;

[0044] Figure 12This is a schematic diagram of the seedling tray structure of a feeding and unloading system for a forestry seedling bed proposed by the present invention.

[0045] In the picture:

[0046] 1. Machine body; 11. Center bracket; 12. Left stress bracket; 13. Right stress bracket;

[0047] 2. Seedling bed; 21. Load-bearing shaft; 22. Four-pointed star-shaped bracket;

[0048] 23. Place the sand table; 231. Movable ring; 232. Triangular plate; 233. Load-bearing mesh plate; 24. Angle fixture; 241. Driving cylinder; 242. Telescopic square tube; 243. Micro motor; 244. Driving gear; 245. Driven gear;

[0049] 25. Blanking tooling; 251. Blanking notch; 252. Blanking square tube; 253. Driving hydraulic cylinder; 254. Blocking plate;

[0050] 3. Feeding mechanism;

[0051] 31. Feeding platform; 311. Horizontal feeding platform; 312. Vertical feeding pipeline; 313. Feeding channel; 314. Guide notch;

[0052] 32. Loading tooling; 321. Single-layer bracket; 322. First eccentric cam; 323. Limit bolt; 324. Deflection rocker; 325. Driven through hole; 326. Boosting ratchet;

[0053] 4. Unloading mechanism; 41. Ladder-shaped unloading platform; 42. Extension bracket;

[0054] 43. Blanking tooling; 431. Second eccentric cam; 432. Deflection lever; 433. Return spring; 434. Buckle end; 435. Damping shaft; 436. Position-limiting ratchet; 437. Pushing star plate;

[0055] 5. Seedling tray; 51. Seedling tray unit. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0057] Reference Figures 1-12, A feeding and discharging system for forestry seedling raising beds, including a machine body 1 and a seedling tray 5 composed of three single seedling tray units 51, and also including a seedling raising bed body 2, a feeding mechanism 3, and a discharging mechanism 4. By centrally arranging the seedling raising bed body 2 and driving the seedling raising bed body 2, it is convenient to set the feeding mechanism 3 and the discharging mechanism 4 with clear functional differences on both sides of the seedling raising bed body 2, and predetermine the feeding and discharging movement paths of the seedling tray 5 on the seedling raising bed body 2 to avoid the disorder and chaos caused by concentration.

[0058] The machine body 1 includes a central support 11, a left stress support 12, and a right stress support 13:

[0059] The central support 11 is a U-shaped structure with an upward opening. The left stress support 12 is fixedly connected to the left side of the central support 11, and the right stress support 13 is fixedly connected to the right side of the central support 11. By setting locking wheels at the bottoms of the central support 11, the left stress support 12, and the right stress support 13, the overall flexibility of the machine body 1 is improved. At the same time, by assembling and connecting the three, a complete system for forestry seedling raising from feeding to seedling raising to discharging is formed.

[0060] The seedling raising bed body 2 is arranged at the middle position of the machine body 1, and the seedling raising bed body 2 includes four placing sand trays 23 for circumferentially and equidistantly placing the seedling tray 5. The seedling raising bed body 2 also includes a bearing rotating shaft 21, a four-corner star-shaped support 22, an inclination tooling 24, and a blanking tooling 25:

[0061] The bearing rotating shaft 21 is rotatably installed on the central support 11. A driving motor fixedly connected to the bearing rotating shaft 21 is arranged on one side of the central support 11. According to the needs of seedling raising and feeding and discharging, the four placing sand trays 23 are controlled to perform a clockwise rotation movement as shown in the attached drawings of the specification, which can not only ensure that the forestry seedlings in each placing sand tray 23 obtain uniform light and water and fertilizer resources during the dynamic seedling raising process, but also improve the convenience and flexibility during the feeding and discharging process by driving the revolution movement of the placing sand trays 23. Figure 1 As shown, a clockwise rotation movement is carried out, which can not only ensure that the forestry seedlings in each placing sand tray 23 obtain uniform light and water and fertilizer resources during the dynamic seedling raising process, but also improve the convenience and flexibility during the feeding and discharging process by driving the revolution movement of the placing sand trays 23.

[0062] The placing sand tray 23 includes a movable ring 231, a triangular plate 232, and a load-bearing mesh plate 233:

[0063] The movable ring 231 is rotatably sleeved on the four-corner star-shaped support 22. The four-corner star-shaped support 22 is provided with long bolts for clearance fit with the movable ring 231. At the same time, both ends of the long bolts are thick and the middle is thin, so as to limit the movable ring 231 installed thereon and perform balance limiting on the placing sand tray 23 from both sides.

[0064] The triangular plate 232 is fixedly connected to the movable ring 231. The triangular plate 232 can be used to balance and support the placing sand tray 23. At the same time, by observing the triangular plate 232, the left-tilt or right-tilt state of the placing sand tray 23 can be quickly judged.

[0065] The load-bearing mesh plate 233 is fixedly connected to the triangular plate 232. The load-bearing mesh plate 233 adopts a hollow structure so as to play the role of air permeability and water permeability, providing an empty living space for forestry seedlings.

[0066] The tilting tool 24 is arranged on the central support 11 in conjunction with the feeding tool 32. The tilting tool 24 at the left position is used to adjust the sand table 23 placed on the same side to the left, and the tilting tool 24 at the right position is used to adjust the sand table 23 placed on the same side to the right. The tilting tool 24 includes a driving cylinder 241, a telescopic square tube 242, a micro motor 243, a driving gear 244, and a driven gear 245:

[0067] The pin of the driving cylinder 241 is mounted on the four-pointed star-shaped bracket 22;

[0068] A telescopic square tube 242 slides within the four-pointed star-shaped bracket 22 and is pin-connected to the output end of a drive cylinder 241. Driven by the drive cylinder 241, the telescopic square tube 242 moves to adjust the connection between the drive gear 244 and the driven gear 245 as needed. Because the sand table 23, which is movably mounted via the movable ring 231, remains vertical under normal conditions, the horizontally moving drive gear 244 always achieves precise alignment with the normally positioned driven gear 245.

[0069] The micro motor 243 is fixedly disposed in the telescopic square tube 242 .

[0070] The driving gear 244 is key-connected to the output end of the micro motor 243 .

[0071] The driven gear 245 is keyed to the movable ring 231, and the driven gear 245 corresponds to the driving gear 244 in a movable manner. Under normal conditions, the driving gear 244 is separated from the driven gear 245, and the inclination tool 24 does not play a regulating role on the placement sand tray 23, and the placement sand tray 23 remains in a vertical downward state. When the driving gear 244 is engaged with the driven gear 245, the inclination tool 24 controls the placement sand tray 23 to tilt left or right. In the left-tilted state, it is convenient for the loading mechanism 3 to transport three seedling tray monomers 51 to the placement sand tray 23, and in the right-tilted state, it is convenient to release the three seedling tray monomers 51 one by one.

[0072] The four-pointed star-shaped bracket 22 is fixedly mounted on the bearing shaft 21, and the four-pointed star-shaped bracket 22 is used to place four groups of sand tables 23 at equal intervals in the circumferential direction. Figure 1 With attached Figure 2 , it should be noted that:

[0073] First, the end position of the four-pointed star-shaped bracket 22 is integrally connected with a long bolt structure, and the sand tray 23 is movably mounted on the long bolt through a movable ring 231. When the driving gear 244 and the driven gear 245 in the tilt tool 24 are not in meshing contact, the four groups of sand trays 23 are always kept in a vertical downward state during the revolution of the seedling bed 2. This process is suitable for seedling operations and is convenient for applying light and water and fertilizer resources to the forestry seedlings in the four groups of sand trays 23;

[0074] Second, when the driving gear 244 and the driven gear 245 in the tilt control tooling 24 are in meshing contact, the movable ring 231 can be deflected on the long bolt by driving the driving gear 244 and the driven gear 245 to rotate, thereby causing the sand table 23 to tilt left or right.

[0075] The blanking tool 25 is set in the sand tray 23, and the blanking tool 25 is set in the sand tray 23 in conjunction with the inclination tool 24. The blanking tool 25 is used to control the three seedling tray units 51 on the sand tray 23 to be arranged horizontally or dropped vertically. The blanking tool 25 includes a blanking notch 251, a blanking square tube 252, a driving hydraulic cylinder 253, and a material blocking baffle 254:

[0076] The blanking gap 251 is opened on the right side of the load-bearing mesh plate 233, and the blanking square tube 252 is integrally connected to the lower end of the load-bearing mesh plate 233, and the blanking square tube 252 is connected to the blanking gap 251. It should be noted that the blanking gap 251 and the blanking square tube 252 only pass through one seedling tray unit 51 at a time.

[0077] The driving hydraulic cylinder 253 is fixedly installed in the load-bearing net plate 233 .

[0078] The material blocking baffle 254 is fixedly connected to the output end of the driving hydraulic cylinder 253, and the material blocking baffle 254 is slidably mounted in the load-bearing mesh plate 233 corresponding to the blanking gap 251. By controlling the material blocking baffle 254 to realize linear reciprocating extension and contraction in the load-bearing mesh plate 233, the opening and closing of the blanking gap 251 can be controlled to thereby regulate the seedling tray unit 51 to pass through the blanking gap 251 in an orderly manner.

[0079] The feeding mechanism 3 is arranged on the left side of the machine body 1, and the feeding mechanism 3 includes a feeding tool 32 for conveying the seedling tray monomer 51 to the sand tray 23 to form the seedling tray 5, and the feeding mechanism 3 also includes a feeding table 31:

[0080] The feeding platform 31 is fixedly connected to the left stress support 12, and the feeding platform 31 transports the seedling tray units 51 to a group of sand trays 23 located on the left side through the loading tooling 32. The feeding platform 31 includes a horizontal feeding platform 311, a longitudinal feeding pipeline 312, a feeding channel 313, and a guide notch 314:

[0081] The transverse feeding platform 311 is integrally connected to the left stress support 12, and the longitudinal feeding pipeline 312 is integrally connected to the transverse feeding platform 311. It should be noted that at least three seedling tray units 51 are longitudinally stacked on the longitudinal feeding pipeline 312, and only one seedling tray unit 51 can be horizontally moved to the transverse feeding platform 311 at a time. The transverse feeding platform 311 is integrally connected with a short slope toward the sand tray 23, so that the seedling tray unit 51 on the transverse feeding platform 311 is tilted and moved to the right end position of the sand tray 23 under the driving action of the loading tooling 32.

[0082] The feed passage 313 is opened at the lower end position where the longitudinal feeding pipeline 312 connects to the transverse feeding platform 311, and the feed passage 313 only passes one seedling tray monomer 51 at a time. The opening of the feed passage 313 is larger than one seedling tray monomer 51 but smaller than two seedling tray monomers 51.

[0083] The guide notch 314 is opened at the bottom end of the horizontal feeding platform 311 corresponding to the material transfer channel 313 .

[0084] The loading tool 32 includes a single-layer bracket 321, a first eccentric cam 322, a limit bolt 323, a deflection rocker 324, and a booster ratchet 326:

[0085] The single-layer bracket 321 is integrally connected to the left stress bracket 12 .

[0086] The first eccentric cam 322 is rotatably mounted on the single-layer bracket 321 . It should be noted that the single-layer bracket 321 is provided with a first servo motor for driving the first eccentric cam 322 to rotate.

[0087] The limit bolt 323 is integrally connected to the single-layer bracket 321, and the deflection swing arm 324 is movably mounted on the limit bolt 323. Under the traction and limiting action of the limit bolt 323, the deflection swing arm 324 performs synchronous left and right swing and lifting motion along the limit bolt 323.

[0088] The boost ratchet 326 is integrally connected to the deflection rocker arm 324, and a driven through hole 325 of the movable set first eccentric cam 322 is provided in the boost ratchet 326. During the rotation of the first eccentric cam 322, the boost ratchet 326 is caused to swing and lift with a height difference in the guide notch 314, so as to apply pressure to drive a seedling tray unit 51 located at the position of the feed channel 313, so that the seedling tray unit 51 moves to a group of sand trays 23 located on the left side through the horizontal feeding platform 311.

[0089] The unloading mechanism 4 is arranged on the right side of the machine body 1, and the unloading mechanism 4 includes an unloading tool 43 for receiving the seedling tray 5 on the sand tray 23 and dividing it into three seedling tray units 51. The unloading mechanism 4 also includes a ladder-shaped unloading platform 41 and an extension bracket 42:

[0090] The ladder-shaped unloading platform 41 is fixedly installed on the right stress bracket 13, and the ladder-shaped unloading platform 41 corresponds to a group of sand trays 23 located on the right side. The ladder-shaped unloading platform 41 includes a first oblique section, a second oblique section and a transverse section connected in sequence. It should be noted that by alleviating the node structure between the first oblique section, the second oblique section and the transverse section, it is preferably adopted a chamfer structure and a damping rubber pad to ensure that the seedling tray unit 51 falling from the sand tray 23 can move smoothly along the ladder-shaped unloading platform 41.

[0091] The extension bracket 42 is matched with the ladder-shaped unloading platform 41 and is set on the right stress bracket 13, and the extension bracket 42 is used to set the step-by-step conveying seedling tray unit 51.

[0092] The blanking tool 43 includes a second eccentric cam 431, a deflection blocking rod 432, a return spring 433, a buckle end 434, a damping shaft 435, a limiting ratchet 436, and a material pushing star disk 437:

[0093] The second eccentric cam 431 is rotatably mounted on the extension bracket 42 . The extension bracket 42 is provided with a second servo motor for driving the second eccentric cam 431 to rotate.

[0094] The pin of the deflection stop rod 432 is installed on the extension bracket 42, and the deflection stop rod 432 is movably counteracted by the second eccentric cam 431. The squeezing of the deflection stop rod 432 by the second eccentric cam 431 overcomes the traction of the return spring 433, and the buckle end 434 suspends the limitation of the limiting ratchet 436. At this time, a seedling tray unit 51 with a tendency to move to the right contacts the pushing star plate 437 and realizes movable fitting in the horizontal section until the second eccentric cam 431 puts pressure on the deflection stop rod 432 again, and the seedling tray unit 51 can be further moved horizontally.

[0095] The reset spring 433 is fixedly mounted on the extension bracket 42, and the reset spring 433 is fixedly connected to the deflection lever 432. Under the elastic traction of the reset spring 433, the snap end 434 on the deflection lever 432 always tends to tilt towards the limiting ratchet 436, thereby realizing the snap limitation of the limiting ratchet 436, the damping shaft 435, and the pushing star plate 437.

[0096] The buckle end 434 is integrally connected to the deflection blocking rod 432;

[0097] The damping shaft 435 is rotatably mounted on the extension bracket 42 via a damping bearing.

[0098] The limiting ratchet 436 is key-connected to the damping shaft 435, and the limiting ratchet 436 is movably locked with the snap end 434. The limiting ratchet 436 is provided with an oblique tooth groove structure corresponding to the snap end 434. Under the snap limiting action of the deflection lever 432, the damping shaft 435 is limited from being driven to rotate by the seedling tray unit 51.

[0099] The push star plate 437 is fixedly mounted on the damping shaft 435. Figure 9 -Attached Figure 11 The push star plate 437 is mainly composed of four long rods equidistantly distributed in the circumference. Each time it deflects 90 degrees, it can carry a seedling tray monomer 51 and move a certain distance in a straight line along the horizontal section of the ladder-shaped unloading platform 41.

[0100] The seedling bed 2 is located between the loading mechanism 3 and the unloading mechanism 4 through the central bracket 11. The loading mechanism 3 corresponds to a group of sand trays 23 located on the left side through the left stress bracket 12, so as to facilitate loading on the left-leaning group of sand trays 23. The unloading mechanism 4 corresponds to a group of sand trays 23 located on the right side through the right stress bracket 13, so as to facilitate unloading from the right-leaning group of sand trays 23.

[0101] The sand table 23 is placed on the four-pointed star-shaped bracket 22.

[0102] The feeding platform 31 is used to transform the longitudinally stacked seedling trays 5 into transversely placed seedling tray monomers 51. Figure 12 The height of the forestry seedlings is less than the depth of the seedling tray monomer 51, so the seedling tray monomer 51 in the longitudinal stacking state will not cause pressure damage to the forestry seedlings.

[0103] The unloading tooling 43 is set corresponding to the horizontal section of the ladder-shaped unloading platform 41. By temporarily limiting each seedling tray unit 51 at the horizontal section position and conveying it in a step-by-step manner, it helps to avoid mutual impact and extrusion.

[0104] It should be noted that the specific models and specifications of the driving cylinder 241, micro motor 243, driving hydraulic cylinder 253, driving motor, first servo motor and second servo motor need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be repeated.

[0105] The present invention can be explained through the following operation mode:

[0106] The hydraulic cylinder 253 is used to drive the blocking plate 254 to close the material gap 251. The load-bearing shaft 21 and the four-pointed star-shaped bracket 22 rotate slowly, so that the four groups of sand trays 23 drive the four groups of seedling trays 5 to rotate, so that they can evenly receive light and water and fertilizer resources.

[0107] When the seedling tray monomer 51 needs to be transported to the seedling bed body 2, a group of tilting tooling 24 located at the left position is controlled to operate, that is, the driving cylinder 241 drives the telescopic square tube 242 to extend horizontally until the driving gear 244 is meshed and connected with the driven gear 245, and the micro motor 243 is controlled to start, so that the movable ring 231 deflects on the four-pointed star bracket 22, and the load mesh plate 233 is synchronously tilted to the left through the triangular plate 232. During the rotation process, the first eccentric cam 322 drives the booster ratchet 326 and the deflection swing rod 324 to tilt and rise. At the same time, because the limit bolt 323 traction limitates the deflection swing rod 324, the booster ratchet 326 that reciprocates in the guide notch 314 pushes one seedling tray monomer 51 located at the feeding channel 313 position to move to the right end position of a group of placing sand tray 23 on the left position each time, and because of the left tilting action, the three seedling tray monomers 51 are arranged to the left in sequence;

[0108] When it is necessary to take the seedling tray monomer 51 from the seedling bed 2, a group of tilting fixtures 24 located on the right side is controlled to operate, that is, the driving cylinder 241 is used to drive the telescopic square tube 242 to extend horizontally until the driving gear 244 is meshed and connected with the driven gear 245, and the micro motor 243 is controlled to start, so that the movable ring 231 is deflected on the four-pointed star-shaped bracket 22, and the load-bearing mesh plate 233 is synchronously tilted to the right through the triangular plate 232, and the blanking fixture 25 is controlled to operate so that the blocking baffle 254 is retracted to open the blanking notch 251, and the three seedling tray monomers 51 on the load-bearing mesh plate 233 pass through the blanking notch 251 and the blanking square tube 252 in turn to the ladder-shaped blanking platform 41;

[0109] The seedling tray units 51 on the first oblique section and the second oblique section move toward the horizontal section due to gravity and inertia. At the same time, due to the intermittent pressure exerted by the second eccentric cam 431 on the deflection lever 432, the buckle end 434 intermittently limits the limiting ratchet 436, so that the damping shaft 435 drives the pushing star plate 437 to perform step-by-step circular rotation, and only passes through one seedling tray unit 51 at a time.

[0110] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A feeding and unloading system for a forestry nursery bed, comprising a body (1) and a nursery tray (5) consisting of three nursery tray units (51), characterized in that: It also includes: A seedling-raising bed body (2), which is arranged in the middle of the machine body (1). The seedling-raising bed body (2) includes four placing sand trays (23) for circumferentially and equidistantly placing seedling trays (5). A feeding mechanism (3), which is arranged on the left side of the machine body (1). The feeding mechanism (3) includes a feeding tooling (32) for conveying single seedling trays (51) to form a seedling tray (5) onto the placing sand tray (23). A discharging mechanism (4), which is arranged on the right side of the machine body (1). The discharging mechanism (4) includes a discharging tooling (43) for receiving the seedling tray (5) on the placing sand tray (23) and dividing it into three single seedling trays (51).

2. A forestry seedling bed loading and unloading system according to claim 1, characterized in that: The machine body (1) includes: A central support (11), which is in a U-shaped structure with an upward opening. A left stress support (12), which is fixedly connected to the left side of the central support (11). A right stress support (13), which is fixedly connected to the right side of the central support (11).

3. A forestry seedling bed feeding and unloading system according to claim 2, characterized in that: The seedling-raising bed body (2) is located between the feeding mechanism (3) and the discharging mechanism (4) through the central support (11). The feeding mechanism (3) corresponds to a group of placing sand trays (23) located on the left side through the left stress support (12). The discharging mechanism (4) corresponds to a group of placing sand trays (23) located on the right side through the right stress support (13).

4. A forestry seedling bed feeding and unloading system according to claim 3, characterized in that: The seedling-raising bed body (2) also includes: A bearing rotating shaft (21), which is rotatably installed on the central support (11). A four-corner star-shaped support (22), which is fixedly installed on the bearing rotating shaft (21). The four-corner star-shaped support (22) is used for circumferentially and equidistantly distributing four placing sand trays (23). An inclination tooling (24), which is arranged on the central support (11) in cooperation with the feeding tooling (32). The inclination tooling (24) located on the left side is used to adjust the left inclination of the placing sand tray (23) on the same side, and the inclination tooling (24) located on the right side is used to adjust the right inclination of the placing sand tray (23) on the same side. A blanking tooling (25), which is arranged in the placing sand tray (23). The blanking tooling (25) is arranged in the placing sand tray (23) in cooperation with the inclination tooling (24). The blanking tooling (25) is used to control the three single seedling trays (51) on the placing sand tray (23) to be arranged horizontally or to fall vertically.

5. A feeding and unloading system for forestry seedling beds according to claim 4, characterized in that: The placing sand tray (23) is movably sleeved on the four-corner star-shaped support (22).

6. A forestry seedling bed loading and unloading system according to claim 2, characterized in that: The feeding mechanism (3) also includes: A feeding table (31), which is fixedly connected to the left stress support (12). The feeding table (31) conveys single seedling trays (51) to a group of placing sand trays (23) located on the left side through the feeding tooling (32).

7. A forestry seedling bed loading and unloading system according to claim 6, characterized in that: The feeding table (31) is used to convert the longitudinally stacked seedling trays (5) into horizontally placed single seedling trays (51).

8. A forestry seedling bed loading and unloading system according to claim 2, characterized in that: The discharging mechanism (4) also includes: A ladder-shaped unloading platform (41), wherein the ladder-shaped unloading platform (41) is fixedly mounted on the right stress bracket (13), and the ladder-shaped unloading platform (41) corresponds to a set of sand trays (23) located on the right side; An extension bracket (42) is provided on the right stress bracket (13) in cooperation with the ladder-shaped blanking platform (41), and the extension bracket (42) is used to set a blanking tool (43).

9. A forestry seedling bed loading and unloading system according to claim 8, characterized in that: The ladder-shaped unloading platform (41) comprises a first oblique section, a second oblique section and a transverse section which are connected in sequence.

10. A forestry seedling bed loading and unloading system according to claim 9, characterized in that: The extension bracket (42) is arranged corresponding to the transverse section of the ladder-shaped unloading platform (41).

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