A device for automatic separation and laying of rice seedling tray after tray germination

Abstract

The utility model discloses a kind of for rice stacked tray germination after seedling tray automatic disengagement and laying device, it is related to rice factory processing equipment technical field, solve the problem of complex structure, single adaptation scene of laying device structure in prior art after germination.The utility model includes first support, first support is equipped with the feeding lifting mechanism of tray, and tray is supported stacked tray seedling tray;First support side is equipped with second support, and second support is hinged conveyor belt and is equipped with support adjusting mechanism;First support upper end is equipped with push plate component, and push plate component is connected with telescopic push rod, and first support is equipped with limit switch and positioning guide rod, and first support is equipped with the guide block with slope face.The utility model is through the synergic cooperation of feeding lifting, limit positioning, push laying and angle adjustment, simple and compact structure, can be flexibly adapted to different operation scene, stable operation, convenient operation, effectively improve seedling tray disengagement and laying efficiency, reduce labor intensity, applicable to factory seedling raising operation.

Description

Technical Field

[0001] This utility model relates to the technical field of rice processing equipment, and in particular to an automatic detachment and placement device for rice seedling trays after germination. Background Technology

[0002] In the industrialized rice seedling raising process, tray germination is a key step to improve seedling raising efficiency and ensure seedling uniformity. After germination, the tightly stacked seedling trays need to be separated one by one and laid flat on the subsequent conveyor line, seedling bed or transfer equipment to lay the foundation for hardening and transplanting.

[0003] In existing technologies, there are two main problems with equipment for laying rice seedling trays: one is manual operation, which is labor-intensive, inefficient, and prone to causing tray deformation and seedling damage, failing to meet the needs of large-scale seedling cultivation; the other is automated equipment. Chinese invention patent CN115462258A discloses an automatic rice seedling tray laying device in the field. This device achieves field laying through a tray laying frame, a chain-driven clamping support mechanism, and a lifting mechanism, but it has obvious defects: first, the structure is complex, including multiple sets of support components, a chain-driven transmission mechanism, and a walking mechanism, resulting in high manufacturing costs and difficult maintenance; second, it is only suitable for a limited range of scenarios, only enabling continuous laying on the field ground, and cannot meet the multi-scenario needs of "connecting to conveyor lines and seedling beds of different heights" in factory seedling cultivation, resulting in poor flexibility; third, the separate design of the clamping strip and the seedling tray is prone to jamming and instability, affecting the continuity of operation.

[0004] Furthermore, some existing seedling tray laying equipment used in factory seedling raising suffers from problems such as inconvenient adjustment and poor synchronization between detachment and laying, making it difficult to adapt to different sizes of seedling trays and diverse operational needs. Therefore, there is an urgent need for an automatic seedling tray detachment and laying device that is structurally simplified, easy to adjust, widely adaptable, and stable in operation to address the shortcomings of existing technologies. Utility Model Content

[0005] To address the shortcomings in the aforementioned background technology, this utility model proposes an automatic detachment and placement device for rice seedling trays after germination, which solves the problems of complex structure and limited application scenarios of existing seedling tray placement devices after germination.

[0006] The technical solution of this utility model is implemented as follows: an automatic detachment and placement device for rice seedling trays after germination includes a first support, on which a feeding and lifting mechanism is provided. The movable end of the feeding and lifting mechanism is provided with a support plate for supporting the stacked seedling trays. A second support is provided on one side of the first support, and the second support is hinged to one end of a conveyor belt. The second support is provided with a support and adjustment mechanism that cooperates with the other end of the conveyor belt, and the support and adjustment mechanism is used to adjust the pitch angle of the conveyor belt. A telescopic push rod is fixedly provided on the first support. The telescopic push rod is connected to a push plate assembly, and the telescopic push rod can push the push plate assembly to move, thereby pushing the topmost seedling tray onto the conveyor belt. A limit switch that cooperates with the top of the topmost seedling tray is fixedly provided on the first support.

[0007] Preferably, the feeding and lifting mechanism includes at least one pair of linkage rods rotatably disposed at the upper and lower ends of the first support. Each linkage rod is correspondingly provided with a sprocket or synchronous pulley. Each pair of linkage rods is synchronously connected by a chain or synchronous belt wound around the corresponding sprocket or synchronous pulley. The linkage rod at the lower end is in transmission cooperation with a drive motor fixedly disposed on the first support. The support plate is fixedly connected to the chain or synchronous belt. A slide rail is vertically fixedly disposed on the first support, and a slider is fixedly disposed on the support plate, with the slider slidingly cooperating with the slide rail.

[0008] Preferably, the support adjustment mechanism includes a support connected to the middle of the conveyor belt, the support being hinged to a hinge seat, one end of the hinge seat being threadedly engaged with a double-ended stud, and the other end of the double-ended stud being threadedly connected to a base hinged to a second bracket; the threads at both ends of the double-ended stud have opposite directions of rotation.

[0009] Preferably, the double-ended stud is fixedly provided with an adjusting handle in the middle, and the double-ended stud is provided with locking nuts that respectively cooperate with the hinge seat and the base. The push plate assembly includes a push plate, the bottom of which is provided with a support, and the push plate is connected to the telescopic end of the telescopic push rod.

[0010] Preferably, the first support is provided with a guide block, the top of which is fitted with the hinged end of the conveyor belt, and the guide block has a slope for guiding the sliding of the seedling tray. The telescopic push rod is obliquely fixed on the first support, and as the telescopic push rod extends, the distance between the push plate and the ground increases. The distance from the trigger point of the limit switch to the lowest end of the slope is greater than or equal to the thickness of the seedling tray. The first support is provided with a positioning guide rod for cooperating with the seedling tray.

[0011] The beneficial effects of this utility model are: By integrating a feeding and lifting mechanism, a pusher plate assembly, and a limit switch into the first support, along with the hinged structure of the second support and the conveyor belt, and the support adjustment mechanism, the overall layout is compact and simple. This eliminates the complex support and transmission structures of existing technologies, significantly simplifying the overall structure of the device and reducing manufacturing costs and maintenance difficulties. The support plate of the feeding and lifting mechanism can stably support the stacked seedling trays. The limit switch precisely controls the lifting height of the top seedling tray, and the pusher plate assembly is driven by a telescopic push rod to directionally push the trays, allowing them to detach one by one in an orderly manner. This avoids accidental pushing or incomplete pushing of multiple trays, ensuring continuous operation. The hinged design of the second support and the conveyor belt, along with the angle adjustment function of the support adjustment mechanism, breaks the limitation of existing equipment that can only be adapted to field placement. The tilt angle of the conveyor belt can be flexibly adjusted according to subsequent operational needs, adapting to diverse factory seedling raising scenarios such as conveyor lines and seedling beds of different heights. The push plate assembly works in conjunction with the telescopic push rod to ensure a smooth and stable seedling tray pushing process. At the same time, the automated lifting, pushing and laying coordinated actions replace manual operation, significantly reducing labor intensity and improving the overall efficiency of seedling tray detachment and laying, thus meeting the needs of large-scale factory seedling raising operations. Attached Figure Description

[0012] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the correspondence between the pusher plate assembly and the seedling tray of this utility model; Figure 3 This is a schematic diagram of the feeding and lifting mechanism of this utility model; Figure 4 This is a schematic diagram of the support and adjustment structure of this utility model; In the diagram: 1: First support, 2: Feeding and lifting mechanism, 21: Linkage rod, 22: Synchronous pulley, 23: Synchronous belt, 24: Slide rail, 25: Slider, 3: Support plate, 4: Seedling tray, 5: Second support, 6: Conveyor belt, 7: Support adjustment mechanism, 71: Support, 72: Hinge seat, 73: Double-headed stud, 74: Base, 75: Adjustment handle, 76: Locking nut, 8: Track, 9: Push plate assembly, 91: Push plate, 92: Support, 93: Guide block, 94: Slope, 10: Telescopic push rod, 11: Limit switch, 12: Positioning guide rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figure 1 As shown in Embodiment 1, an automatic detachment and placement device for rice seedling trays after germination includes a first support 1, a feeding and lifting mechanism 2 mounted on the first support 1, and a support plate 3 at the movable end of the feeding and lifting mechanism 2 for supporting the stacked seedling trays 4. In this embodiment, the first support 1 is welded from conventional profiles such as square steel, possessing sufficient structural strength to support core components such as the feeding and lifting mechanism 2.

[0016] A second support 5 is provided on one side of the first support 1. The second support 5 is also made of square steel welded together. The second support 5 is hinged to one end of the conveyor belt 6. The second support 5 is provided with a support adjustment mechanism 7 that cooperates with the other end of the conveyor belt 6. The support adjustment mechanism 7 is used to adjust the pitch angle of the conveyor belt 6. The angle adjustment function breaks the limitation that the existing equipment can only be adapted to field laying. The pitch angle of the conveyor belt can be flexibly adjusted according to the needs of subsequent operations, adapting to diverse factory seedling raising scenarios such as conveyor lines and seedling beds of different heights.

[0017] A telescopic push rod 10 is fixedly installed on the first support 1. The telescopic push rod 10 is connected to the push plate assembly 9. The telescopic push rod 10 and the conveyor belt are located on both sides of the pallet. The telescopic push rod 10 can push the push plate assembly 9 to move along the track 8, thereby pushing the topmost seedling tray 4 onto the conveyor belt 6, realizing the orderly detachment of the seedling trays one by one, avoiding the situation of multiple trays being pushed incorrectly or not pushed in place, and ensuring the continuity of operation. A limit switch 11 that cooperates with the top of the topmost seedling tray 4 is fixedly installed on the first support 1. In this embodiment, the limit switch 11 is a conventional proximity switch, and its trigger end corresponds to the top of the topmost seedling tray 4, which is used to precisely control the lifting height of the seedling tray 4.

[0018] This device features a compact and simple overall layout, eliminating the complex support and transmission structures of existing technologies, significantly simplifying the overall structure and reducing manufacturing costs and maintenance difficulties. Simultaneously, the automated lifting, pushing, and laying actions replace manual operation, significantly reducing labor intensity and improving the overall efficiency of seedling tray detachment and laying, making it suitable for large-scale, factory-style seedling cultivation operations.

[0019] Example 2: An automatic detachment and placement device for rice seedling trays after germination, based on Example 1, such as... Figure 3As shown, the feeding and lifting mechanism 2 includes at least one pair of linkage rods 21 rotatably mounted at the upper and lower ends of the first support 1. In this embodiment, a pair of linkage rods are provided. Bearing seats are fixedly mounted at both the upper and lower ends of the first support 1, and the linkage rods are mounted on the bearing seats to achieve rotational capability. Each linkage rod 21 is correspondingly provided with a sprocket or synchronous pulley 22. Each pair of linkage rods 21 is synchronously connected by a chain or synchronous belt 23 wound around the corresponding sprocket or synchronous pulley 22. The linkage rod 21 at the lower end is driven by a drive motor fixedly mounted on the first support 1. The pallet 3 is fixedly connected to the chain or synchronous belt 23. In this embodiment, a stepper motor is used as the drive motor, which can precisely control the lifting stroke. The pallet 3 is provided with a pressure block, which is fixedly connected to the chain 23 on both sides of the pallet by bolts. The drive motor drives the linkage rod 21 to rotate, and then drives the pallet 3 to move vertically up and down through the chain 23.

[0020] Furthermore, a pair of slide rails 24 are vertically fixed on the first support 1, and a slider 25 is fixed on the pallet 3. The slider 25 slides in cooperation with the slide rails 24 to ensure that there is no lateral swaying during the lifting and lowering of the pallet 3, thereby improving stability.

[0021] Example 3: An automatic detachment and placement device for rice seedling trays after germination, based on Example 2, such as... Figure 4 As shown, the support adjustment mechanism 7 includes a support 71 connected to the middle of the conveyor belt 6, and the support 71 is hinged to the hinge seat 72. In this embodiment, the conveyor belt adopts a conventional conveyor belt structure. One end of the conveyor belt's own support is hinged to the second support, and the support is fixedly connected to the conveyor belt's own support, thereby supporting the conveyor belt. The hinge seat 72 is provided with a threaded hole, and the hinge seat 72 is threadedly engaged with one end of a double-ended stud 73 through the threaded hole. The other end of the double-ended stud 73 is threadedly connected to a base 74 hinged to the second support 5. The base 74 is also provided with a threaded hole, and the double-ended stud is threadedly connected to the threaded hole. In this embodiment, the threads at both ends of the double-ended stud 73 have opposite directions of rotation, and the two threaded holes also have opposite directions of rotation. This allows the hinge seat 72 to move closer to or away from the base 74 when the double-ended stud 73 is rotated, thereby causing the conveyor belt 6 to rotate around the hinge point, achieving pitch angle adjustment.

[0022] As a further specific embodiment, the double-ended stud 73 is fixedly provided with an adjusting handle 75 in the middle for easy manual adjustment. The double-ended stud 73 is provided with locking nuts 76 that respectively cooperate with the hinge seat 72 and the base 74. After the conveyor belt 6 angle is adjusted to the correct position, tightening the locking nuts 76 can fix the position of the hinge seat 72 and the base 74 and prevent angle deviation during operation.

[0023] Example 4: An automatic detachment and placement device for rice seedling trays after germination, based on Example 3, such as... Figure 2 , 3 As shown, the pusher plate assembly 9 includes a pusher plate 91, which is a rectangular plate. The bottom of the pusher plate 91 has a support 92 with a triangular cross-section, used to insert into the gap between adjacent seedling trays 4, supporting the bottom of the seedling trays 4 and preventing them from falling during the pushing process. Additionally, the pusher plate 91 is connected to a support body 91, which has rollers that slide in cooperation with the track 8.

[0024] The first support 1 is provided with a guide block 93. The top of the guide block 93 is flush with the top of the hinge end of the conveyor belt 6. The guide block 93 is provided with a slope 94 for guiding the sliding of the seedling tray 4. In this embodiment, the inclination angle of the slope 94 is 15-25°, which can realize the smooth transition of the seedling tray 4 from the push plate assembly 9 to the conveyor belt 6, reduce damage. At the same time, as the seedling tray is pushed, it can gradually separate from the seedling tray below in the vertical direction, avoiding excessive damage to the seedlings in the seedling tray below.

[0025] The telescopic push rod 10 is fixedly mounted at an angle on the first bracket 1. The telescopic end of the telescopic push rod 10 is fixedly connected to the push plate. As the telescopic push rod 10 extends, the distance between the push plate 91 and the ground increases, and the other end of the seedling tray 4 slides along the slope 94 towards the conveyor belt 6. The distance from the trigger point of the limit switch 11 to the lowest point of the slope 94 is greater than or equal to the thickness of the seedling tray 4. In this embodiment, the distance is preferably equal to the thickness of the seedling tray 4. This ensures that after the feeding and lifting mechanism 2 lifts the seedling tray to the point where the limit switch is triggered, the push plate can only push one seedling tray 4 at a time, avoiding the accidental pushing of multiple trays.

[0026] The first support 1 is equipped with a positioning guide rod 12 for cooperating with the seedling tray 4. The positioning guide rod is adapted to the width of the seedling tray 4 and plays a guiding and limiting role for the stacked seedling tray 4 to prevent the seedling tray 4 from shifting during the lifting process. In addition, in this embodiment, the support plate 3 is a rectangular support plate with a non-slip rubber pad on the surface to stably support the stacked seedling tray 4.

[0027] The working process of this utility model is as follows: Equipment debugging: Depending on the height of subsequent equipment such as conveyor lines and seedling beds, turn the adjusting handle 75 and adjust the pitch angle of the conveyor belt 6 through the double-ended stud 73. After adjusting to the correct position, tighten the locking nut 76 to fix the angle.

[0028] Feeding operation: Arrange the multiple stacked seedling trays 4 after germination on the tray 3, ensuring that the two sides of the seedling trays 4 are in contact with the positioning guide rods 12 to achieve the limit.

[0029] Automatic lifting: Start the drive motor, which drives the linkage rod 21 to rotate, and drives the pallet 3 to rise along the slide rail 24 via the synchronous belt 23, and the stacked seedling tray 4 rises synchronously.

[0030] Precise positioning: When the top seedling tray 4 triggers the limit switch 11, the limit switch 11 sends a signal to the connected controller, and the controller controls the drive motor to stop. At this time, the top seedling tray 4 is in the position to be pushed.

[0031] Pushing and laying: The controller controls the extension of the connected telescopic push rod 10, which pushes the push plate assembly 9 to move to the right. With the cooperation of the eaves 92, the push plate 91 pushes the top seedling tray 4 to the guide block 93. The seedling tray 4 slides along the slope 94 of the guide block 93 onto the conveyor belt 6. The conveyor belt 6 starts to transport the seedling tray 4 to the designated position to complete the laying.

[0032] Cyclic operation: After laying is completed, the controller controls the telescopic push rod 10 to retract, driving the push plate assembly 9 to reset. After resetting, the controller controls the drive motor to start again, and the support plate 3 continues to rise until the next top seedling tray 4 triggers the limit switch 11, repeating the above pushing and laying action until all stacked seedling trays 4 have been detached and laid.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for automatic detachment and placement of rice seedling trays after germination in stacked trays, characterized in that: The system includes a first support (1), a feeding and lifting mechanism (2) on the first support (1), a pallet (3) on the movable end of the feeding and lifting mechanism (2), and the pallet (3) for supporting the seedling trays (4) placed in stacked trays; a second support (5) is provided on one side of the first support (1), the second support (5) is hinged to one end of the conveyor belt (6), and a support adjustment mechanism (7) is provided on the second support (5) to cooperate with the other end of the conveyor belt (6), the support adjustment mechanism (7) is used to adjust the pitch angle of the conveyor belt (6); a telescopic push rod (10) is fixedly provided on the first support (1), the telescopic push rod (10) is connected to the push plate assembly (9), and the telescopic push rod (10) can push the push plate assembly (9) to move, thereby pushing the top seedling tray (4) onto the conveyor belt (6); a limit switch (11) is fixedly provided on the first support (1) to cooperate with the top of the top seedling tray (4).

2. The automatic detachment and placement device for rice seedling trays after germination according to claim 1, characterized in that: The feeding and lifting mechanism (2) includes at least one pair of linkage rods (21) that are rotatably arranged at the upper and lower ends of the first support (1). Each linkage rod (21) is provided with a sprocket or synchronous wheel (22). Each pair of linkage rods (21) is synchronously connected by a chain or synchronous belt (23) wound around the corresponding sprocket or synchronous wheel (22). The linkage rod (21) at the lower end is driven by a drive motor fixedly arranged on the first support (1). The pallet (3) is fixedly connected to the chain or synchronous belt (23).

3. The automatic detachment and placement device for rice seedling trays after germination according to claim 2, characterized in that: The first bracket (1) is vertically fixed with a slide rail (24), and the support plate (3) is fixed with a slider (25), which slides in cooperation with the slide rail (24).

4. The automatic detachment and placement device for rice seedling trays after germination according to claim 3, characterized in that: The support adjustment mechanism (7) includes a support (71) connected to the middle of the conveyor belt (6), the support (71) is hinged to the hinge seat (72), the hinge seat (72) is threaded to one end of the double-ended stud (73), and the other end of the double-ended stud (73) is threaded to the base (74) hinged on the second bracket (5); the threads at both ends of the double-ended stud (73) are in opposite directions.

5. The automatic detachment and placement device for rice seedling trays after germination according to claim 4, characterized in that: An adjustment handle (75) is fixedly provided in the middle of the double-ended stud (73), and a locking nut (76) is provided on the double-ended stud (73) to cooperate with the hinge seat (72) and the base (74) respectively.

6. The automatic detachment and placement device for rice seedling trays after germination according to any one of claims 1 to 5, characterized in that: The push plate assembly (9) includes a push plate (91), with a support (92) at the bottom of the push plate (91), and the push plate (91) is connected to the telescopic end of the telescopic push rod (10).

7. The automatic detachment and placement device for rice seedling trays after germination according to claim 6, characterized in that: The first support (1) is provided with a guide block (93), the top of the guide block (93) is fitted with the hinge end of the conveyor belt (6), and the guide block (93) is provided with a slope (94) for guiding the sliding of the seedling tray (4).

8. The automatic detachment and placement device for rice seedling trays after germination according to claim 7, characterized in that: The telescopic push rod (10) is fixedly mounted on the first bracket (1) at an angle. As the telescopic push rod (10) extends, the distance between the push plate (91) and the ground increases.

9. The automatic detachment and placement device for rice seedling trays after germination according to claim 8, characterized in that: The distance from the trigger point of the limit switch (11) to the lowest end of the slope (94) is greater than or equal to the thickness of the seedling tray (4).

10. The automatic detachment and placement device for rice seedling trays after germination according to claim 9, characterized in that: The first support (1) is provided with a positioning guide rod (12) for cooperating with the seedling tray (4).

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