Adjustable seedling tray stacking structure

Abstract

The utility model relates to an adjustable seedling tray stacking structure, and relates to the technical field of agricultural machinery, the adjustable seedling tray stacking structure comprises a rack and a tray discharging mechanism, a tray stacking station is arranged at the top end of the rack, a tray lifting mechanism is arranged at the bottom end of the rack, and four guide rods are symmetrically mounted on the rack below the tray stacking station; a fixing plate is arranged on the two guide rods on the same side of the rack in a sliding mode, a first hinge seat is arranged on the fixing plate, two first hinge frames are symmetrically hinged to the first hinge seat, second hinge frames are hinged to the ends, away from the fixing plate, of the two first hinge frames, and a second hinge seat is hinged to the ends, away from the hinge frames, of the two second hinge frames. The second hinge seats are connected with movable plates which are in sliding connection with the two guide rods, the movable plates are provided with disc receiving mechanisms, and the two first hinge frames and the two second hinge frames which are located on the same fixing plate are jointly provided with an adjusting mechanism. According to the seedling tray stacking device, the stacking number of the seedling trays can be automatically adjusted according to the actual requirements of a user, and automatic and controllable stacking of the seedling trays is achieved.

Description

Technical Field

[0001] The present application relates to the field of agricultural machinery technology, and in particular to an adjustable seedling tray stacking structure. Background Art

[0002] The seedling tray is an essential component of a rice transplanter, primarily used to raise rice seedlings. Typically made of polyvinyl chloride (PVC), the tray undergoes a specialized process, resulting in lightweight, easy handling, storage, and low cost. The tray's design resists softening, deformation, and cracking within a certain temperature range (-20°C to 45°C).

[0003] To save manpower and improve work efficiency, stacking seedling trays in factories or agricultural settings is often done mechanically. However, existing seedling tray stacking mechanisms cannot automatically control the number of seedling trays in a stack during the stacking process. Manually controlling the number of seedling trays in a stack requires a worker to be on hand at all times, which is very inconvenient. Utility Model Content

[0004] In order to improve the intelligence level of the seedling tray stacking mechanism in the prior art so that the seedling tray stacking mechanism can automatically control the number of seedling trays in a stack, the present application provides an adjustable seedling tray stacking structure.

[0005] The present application provides an adjustable seedling tray stacking structure that adopts the following technical solutions:

[0006] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0007] By adopting the above technical solution, during the seedling tray stacking process, workers can adjust the distance between the movable plate and the fixed plate through the adjustment mechanism, thereby controlling the number of seedling trays falling onto the movable plate, and achieving the purpose of controlling the number of seedling trays for stacking. The structure is stable and easy to adjust, plays a good supporting role, and will not affect the normal operation of the tray sending mechanism. At the same time, since the fixed plate is slidably connected to the guide rod, the distance between the tray receiving mechanism on the top of the movable plate and the tray stacking station can be controlled to prevent the seedling tray from falling too far, and it can also play a certain buffering role.

[0008] Optionally, the receiving plate mechanism includes a plurality of door slot blocks fixedly arranged on the side of the movable plate away from the fixed plate, a connecting rod slidably arranged on the movable plate, and a pushing cylinder for pushing the connecting rod to slide along the width direction of the movable plate. The plurality of door slot blocks are arranged at intervals along the length direction of the movable plate, and a plurality of door slot blocks are provided with sliding grooves on the side close to the movable plate. The side of the connecting rod away from the pushing cylinder is integrally connected with a plurality of receiving plate feet along the length direction, and the plurality of receiving plate feet correspond one-to-one to the plurality of door slot blocks, and the plurality of receiving plate feet are all slidably connected to the sliding grooves.

[0009] By adopting the above technical solution, when the seedling tray falls from the stacking station to the movable plate, several receiving tray legs located on both sides of the frame jointly support the seedling tray under the action of the pushing cylinder to prevent the seedling tray from tilting. The function of the door slot block is to limit the receiving tray legs in the vertical direction, thereby strengthening the connection structure of the receiving tray legs to prevent the receiving tray legs from tilting due to the heavy weight of the seedling tray stack when a large number of seedling trays are stacked.

[0010] Optionally, the adjustment mechanism includes a number of adjustment blocks installed at the hinge positions of the articulated frame one and the articulated frame two, two bidirectional screw rods symmetrically connected to the two fixed plates on the frame, and an adjustment motor for adjusting the synchronous rotation of the two bidirectional screw rods. The adjustment motor is fixedly connected to the two fixed plates, and the two adjustment blocks located on the same fixed plate are symmetrically threadedly connected to the bidirectional screw rods.

[0011] By adopting the above technical solution, it is possible to ensure that the two bidirectional screw rods located on the two fixed plates rotate synchronously, which not only allows the movable plate to be raised or lowered stably, but also because the two bidirectional screw rods are simultaneously connected to an adjusting motor for transmission, it is possible to ensure that the seedling tray always remains horizontal during the movement in the vertical direction, thereby improving the neatness of the seedling trays after stacking. The bidirectional screw rods adjust the hinge mechanism between the two hinge frames 1 and 2 on the same fixed plate, which can strengthen the stability of the mechanism at the hinge position and prevent the hinge structure from being damaged when the seedling tray stack is too heavy.

[0012] Optionally, the tray lifting mechanism includes two transmission screws that are arranged on the frame and rotate along the width direction at the bottom of the tray receiving mechanism, and a driving mechanism that is fixedly installed on the bottom of the frame and is used to drive the two transmission screws to rotate. The two transmission screws are commonly connected to a lifting plate 1, and the top of the lifting plate 1 is connected to the tray discharge mechanism.

[0013] By adopting the above technical solution, the driving mechanism drives the two transmission screws to rotate synchronously, which can change the height of the tray-out mechanism in the vertical direction to adapt to the tray-out requirements of different heights, thereby improving the overall practical applicability and scope of application of the equipment. In addition, the tray-out mechanism is moved to a position close to the fixed plate through the lifting plate, which can also prevent the seedling tray stack from dispersing when it falls onto the tray-out mechanism, thereby improving the stability of the device operation.

[0014] Optionally, the lifting plate 1 is symmetrically and movably provided with two lifting plates 2 for auxiliary support on both sides along the width direction of the frame, four linear guide rails are vertically fixedly installed on the frame, the lifting plate 2 is slidably connected between the two linear guide rails, and the tops of the two lifting plates 2 are fixedly connected to the disk output mechanism, a number of positioning holes are spaced apart along the extension direction of the linear guide rails, and the two ends of the lifting plate 2 are symmetrically and integrally connected with positioning blocks for positioning the lifting plate 2 on the linear guide rails.

[0015] By adopting the above technical solution, the two lifting plates 2 are respectively connected to the linear guide rails in a sliding manner. When the lifting plate 1 moves to a predetermined position, the two lifting plates 2 are fixed on the linear guide rails through positioning blocks, thereby providing stable support for the disk ejection mechanism to avoid the disk ejection mechanism from tilting due to uneven weight distribution.

[0016] Optionally, the driving mechanism includes a driving motor fixedly mounted on the bottom of the frame, the two transmission screws are connected to a transmission actuator, the transmission actuator is connected to the driving motor in a transmission manner, and a linkage shaft is connected between the two transmission actuators.

[0017] By adopting the above technical solution, the problem of needing to regulate the synchronous rotation of the two rotating screws can be avoided and the overall energy consumption of the equipment can be reduced. The structure is simple and easy to operate.

[0018] Optionally, the tray-discharging mechanism includes a bracket and a tray-discharging motor installed at one end of the bracket, and a plurality of sprocket chain structures for dragging the seedling tray are arranged at intervals along the width direction on the bracket, and a plurality of free rollers for supporting the seedling tray are installed symmetrically on both sides of the bracket along the length direction, and the plurality of free rollers are located directly below the adjustment mechanism.

[0019] By adopting the above technical solution, when a predetermined number of seedling trays are stacked on two movable plates, the seedling tray stack is placed on the bracket, and the seedling tray stack is transported out by the sprocket chain structure. The structure is simple and reduces labor. The function of the free roller is to drive the seedling tray stack to move to prevent the seedling tray from being damaged due to relative friction between the bottom seedling tray and the tray discharge mechanism due to the inertia of the seedling tray stack when the sprocket chain structure drags the seedling tray stack.

[0020] Optionally, a monitoring controller for controlling the number of seedling trays on the movable plate at a time is installed on the frame below the tray stacking station.

[0021] By adopting the above technical solution, the number of seedling trays placed on the movable plate, that is, the number of seedling trays in a single stack, can be automatically controlled, thereby improving the overall intelligence level of the equipment and making it more practical.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. This application can automatically complete the operation of stacking seedling trays into stacks, and at the same time can control the number of seedling trays in each stack, realizing efficient and orderly stacking of seedling trays;

[0024] 2. This application can always ensure the stability of the structure of the seedling trays and smooth transportation during the stacking process, and has a protective effect on the seedling trays;

[0025] 3. This application can change the height of the seedling tray output according to different output requirements, and has high practicality and a large scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of an adjustable seedling tray stacking structure of the present application.

[0027] Figure 2 This is an overall schematic diagram of the adjustment structure and connection structure of an adjustable seedling tray stacking structure of the present application.

[0028] Figure 3 This is a structural schematic diagram of a tray lifting mechanism of an adjustable seedling tray stacking structure of the present application.

[0029] Figure 4 It is an overall schematic diagram of a tray discharging mechanism of an adjustable seedling tray stacking structure of the present application.

[0030] Explanation of the accompanying reference numerals: 1. Frame; 11. Stacking station; 12. Guide rod; 2. Disk discharging mechanism; 21. Disk discharging motor; 22. Sprocket chain structure; 23. Free roller; 3. Disk lifting mechanism; 31. Transmission screw; 32. Lifting plate 1; 33. Lifting plate 2; 331. Positioning block; 34. Linear guide; 341. Positioning hole; 4. Fixed plate; 41. Articulated seat 1; 42. Articulated frame 1; 5. Movable plate; 51. Articulated seat 2; 52. Articulated frame 2; 6. Adjustment mechanism; 61. Adjustment motor; 62. Bidirectional screw; 63. Adjustment block; 7. Disk receiving mechanism; 71. Door slot block; 711. Slide groove; 72. Connecting rod; 73. Push cylinder; 74. Disk receiving foot; 8. Driving mechanism; 81. Driving motor; 82. Transmission actuator; 83. Linkage shaft. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The embodiments of the present application disclose an adjustable seedling tray stacking structure.

[0033] Reference Figure 1 A controllable seedling tray stacking structure includes a frame 1, a tray discharging mechanism 2 movably mounted at the bottom of the frame 1, and a tray stacking station 11 disposed at the top of the frame 1 for receiving the seedling trays. A tray lifting mechanism 3 is vertically slidably mounted at the bottom of the frame 1 to lift the tray discharging mechanism 2 and adjust the tray output height according to different seedling tray stack output requirements.

[0034] Reference Figure 1 and Figure 2 On the frame 1, four guide rods 12 are symmetrically mounted below the pallet stacking station 11, and a fixed plate 4 is slidably mounted on the two guide rods 12 located on the same side of the frame 1 in the width direction. A hinge seat 1 41 is fixedly mounted on the side of the fixed plate 4 close to the pallet stacking station 11, and two hinge frames 1 42 are symmetrically hinged on the hinge seat 1 41 along the length direction of the fixed plate 4. A movable plate 5 is slidably mounted on the two guide rods 12 above the side of the fixed plate 4 close to the pallet stacking station 11, and a hinge seat 2 51 is fixedly mounted on the middle part of the side of the movable plate 5 close to the fixed plate 4. Two hinge frames 2 52 are symmetrically hinged on the hinge seat 2 51, and the ends of the two hinge frames 2 52 away from the movable plate 5 are respectively hinged to the ends of the two hinge frames 1 42, so as to achieve a smooth raising or lowering of the movable plate 5 relative to the fixed plate 4.

[0035] Reference Figure 2Furthermore, an adjustment mechanism 6 is provided on the two fixed plates 4 on either side of the frame 1, for adjusting the distance between the fixed plate 4 and the movable plate 5 to facilitate stacking. The adjustment mechanism 6 specifically comprises an adjustment motor 61 and two bidirectional screw rods 62 symmetrically connected to the adjustment motor 61. The adjustment motor 61 always controls the synchronous rotation of the two bidirectional screw rods 62. Adjustment blocks 63 are provided at the hinged locations of the two articulated frames 1 42 and the two articulated frames 2 52 on the same side of the frame 1. The ends of the bidirectional screw rods 62 are threadedly connected to the two adjustment blocks 63, respectively.

[0036] Here, the adjustment block 63 can not only drive the hinge points of the two symmetrically arranged hinge frames 42 and the two hinge frames 52 to move closer to or away from each other, thereby raising or lowering the movable plate 5, but also strengthen the connection structure between the hinge frame 1 42 and the hinge frame 2 52 at this position to avoid structural damage due to excessive bearing capacity here when the seedling tray stack is too heavy.

[0037] Reference Figure 2 The two movable plates 5 are provided with a tray receiving mechanism 7 for stacking seedling trays and placing the stacked seedling trays onto the tray discharging mechanism 2. The tray receiving mechanism 7 specifically comprises a plurality of gate slot blocks 71 disposed at equal intervals along the length direction at the end of the movable plate 5 away from the fixed plate 4, a connecting rod 72 slidably disposed on the movable plate 5 along the width direction, and a push cylinder 73 fixed to the two movable plates 5 on the side away from each other and fixedly connected to the connecting rod 72. A sliding groove 711 is formed on the side of the gate slot block 71 close to the movable plate 5. A plurality of tray receiving legs 74 are integrally connected to the side of the connecting rod 72 away from the pushing cylinder 73 at equal intervals along the length direction. The plurality of tray receiving legs 74 are slidably disposed within the sliding grooves 711.

[0038] When the tray receiving mechanism 7 stacks the seedling trays, the tray receiving legs 74 on both sides of the frame 1 abut against the bottom of the seedling trays, thereby supporting the stack of seedling trays. When the stack of seedling trays needs to be transported out, the tray receiving legs 74 move away from each other under the action of the pushing cylinder 73, so that the stack of seedling trays falls onto the tray discharging mechanism 2.

[0039] Reference Figure 3 The tray lifting mechanism 3 includes two transmission screws 31 symmetrically mounted on the bottom of the frame 1 for rotation, and a drive mechanism 8 fixedly mounted on the bottom of the frame 1 for driving the transmission screws 31. The drive mechanism 8 is used to drive the two transmission screws 31 to rotate synchronously. A lifting plate 1 32 is threadedly connected to the two transmission screws 31, and the top of the lifting plate 1 32 is connected to the tray ejection mechanism 2. The tray lifting mechanism 3 is used to adjust the height of the tray ejection mechanism 2 to meet the requirements of different tray ejection heights.

[0040] Reference Figure 3Lifting plate 1 32 is symmetrically mounted on either side of the width of the frame 1, with two lifting plates 33 arranged to assist in lifting the tray ejection mechanism 2. Four linear guide rails 34 are vertically mounted on the frame 1, symmetrically arranged in pairs. Lifting plate 2 33 is slidably connected to the linear guide rails 34 at both ends. Lifting plate 2 33 is also provided with positioning blocks 331 at both ends. The linear guide rails 34 are axially spaced apart with a plurality of positioning holes 341, which are bolted to the positioning blocks 331 to fix the height of lifting plate 2 33 and thus secure the vertical position of the tray ejection mechanism 2.

[0041] Reference Figure 3 Furthermore, the drive mechanism 8 includes a drive motor 81 fixedly mounted on the bottom of the frame 1 and a transmission actuator 82 respectively connected to the bottom of the two rotating screws. A linkage shaft 83 is connected between the two transmission actuators 82, and the drive motor 81 is connected to one of the transmission actuators 82 to synchronously drive the two transmission screws 31 to rotate.

[0042] The transmission actuator 82 described in this application includes a worm gear structure and a bevel gear connection structure, etc. Any mechanism that achieves the same effect based on the actual transmission situation of this position should be within the scope of protection of this application.

[0043] Reference Figure 4 Specifically, the tray discharging mechanism 2 includes a bracket and a tray discharging motor 21 installed at one end of the bracket. Several sprocket chain structures 22 for dragging the seedling tray are arranged at intervals along the width direction on the bracket. Several free rollers 23 for supporting the seedling tray are installed symmetrically on both sides of the bracket along the length direction. The several free rollers 23 are all located directly below the adjustment mechanism 6.

[0044] Furthermore, a monitoring controller is installed on the frame 1 below the tray stacking station 11 to control the number of seedling trays on the movable plate 5 at a time. The monitoring controller is electrically connected to the tray receiving mechanism 7, the tray lifting mechanism 3, the adjustment mechanism 6, and the driving mechanism 8 to coordinate the working status of each mechanism and promote the smooth and orderly operation of the entire device.

[0045] The implementation principle of the adjustable seedling tray stacking structure in the embodiment of the present application is as follows:

[0046] The tray stacking station 11 puts down the seedling trays, and then the tray receiving mechanism 7 on the movable plate 5 stacks the trays. When the number of stacked trays reaches the set standard, the adjusting mechanism 6 moves down as a whole, placing the seedling tray stack on the tray discharging mechanism 2, and the tray discharging mechanism 2 drives the seedling tray stack out of the device as a whole.

[0047] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A controllable seedling tray stacking structure, comprising a frame (1) and a tray discharging mechanism (2) movably arranged at the bottom of the frame (1), a tray stacking station (11) corresponding to the tray delivery structure is arranged at the top of the frame (1), and a tray lifting mechanism (3) for lifting the tray discharging mechanism (2) is arranged at the bottom of the frame (1), characterized in that: The frame (1) is symmetrically provided with four guide rods (12) below the stacking station (11), and a fixed plate (4) is slidably provided on two guide rods (12) located on the same side of the frame (1), and a hinge seat (41) is provided on the fixed plate (4), and two hinge frames (42) are symmetrically hinged on the hinge seat (41), and the ends of the two hinge frames (42) away from the fixed plate (4) are respectively hinged with hinge frames (52), and the two hinge frames (52) are hinged to each other. The second frame (52) is hingedly connected to the second hinge seat (51) at the end away from the first hinge frame (42), and the second hinge seat (51) is connected to a movable plate (5) slidably connected to the two guide rods (12). The movable plate (5) is provided with a receiving plate mechanism (7). The two first hinge frames (42) and the two second hinge frames (52) located on the same fixed plate (4) are jointly provided with an adjustment mechanism (6) for adjusting the distance between the movable plate (5) and the fixed plate (4).

2. The adjustable seedling tray stacking structure according to claim 1, characterized in that: The receiving mechanism (7) comprises a plurality of door slot blocks (71) fixedly arranged on a side of the movable plate (5) away from the fixed plate (4), a connecting rod (72) slidably arranged on the movable plate (5), and a pushing cylinder (73) for pushing the connecting rod (72) to slide along the width direction of the movable plate (5), the plurality of door slot blocks (71) are arranged at intervals along the length direction of the movable plate (5), and a plurality of door slot blocks (71) are provided with a sliding groove (711) on a side close to the movable plate (5), and a plurality of receiving legs (74) are integrally connected to the side of the connecting rod (72) away from the pushing cylinder (73) along the length direction, the plurality of receiving legs (74) correspond to the plurality of door slot blocks (71) one by one, and the plurality of receiving legs (74) are slidably connected to the sliding groove (711).

3. The adjustable seedling tray stacking structure according to claim 1, characterized in that: The adjusting mechanism (6) comprises a plurality of adjusting blocks (63) installed at the hinged position of the articulated frame 1 (42) and the articulated frame 2 (52), two bidirectional screw rods (62) symmetrically connected to the two fixed plates (4) on the frame (1), and an adjusting motor (61) for adjusting the synchronous rotation of the two bidirectional screw rods (62), the adjusting motor (61) being fixedly connected to the two fixed plates (4), and the two adjusting blocks (63) located on the same fixed plate (4) being symmetrically threadedly connected to the bidirectional screw rods (62).

4. The adjustable seedling tray stacking structure according to claim 2, characterized in that: The tray lifting mechanism (3) comprises two transmission screws (31) arranged on the frame (1) and rotatable in the width direction and located at the bottom of the tray receiving mechanism (7), and a driving mechanism (8) fixedly installed at the bottom of the frame (1) for driving the two transmission screws (31) to rotate, and the two transmission screws (31) are commonly connected to a lifting plate (32), and the top of the lifting plate (32) is connected to the tray discharging mechanism (2).

5. The adjustable seedling tray stacking structure according to claim 4, characterized in that: The lifting plate 1 (32) is symmetrically provided with two lifting plates 2 (33) for auxiliary support along both sides of the width direction of the frame (1), and four linear guide rails (34) are fixedly installed vertically on the frame (1). The lifting plate 2 (33) is slidably connected between the two linear guide rails (34), and the tops of the two lifting plates 2 (33) are fixedly connected to the disk discharge mechanism (2). A plurality of positioning holes (341) are spaced apart along the extension direction on the linear guide rails (34), and the two ends of the lifting plate 2 (33) are symmetrically connected with positioning blocks (331) for positioning the lifting plate 2 (33) on the linear guide rails (34).

6. The adjustable seedling tray stacking structure according to claim 4, characterized in that: The driving mechanism (8) includes a driving motor (81) fixedly mounted on the bottom of the frame (1); the two transmission screws (31) are both connected to a transmission actuator (82); the transmission actuator (82) is transmission-connected to the driving motor (81); and a linkage shaft (83) is connected between the two transmission actuators (82).

7. The adjustable seedling tray stacking structure according to claim 1, characterized in that: The tray discharging mechanism (2) comprises a bracket and a tray discharging motor (21) mounted on one end of the bracket, a plurality of sprocket chain structures (22) for dragging the seedling tray are arranged at intervals along the width direction on the bracket, and a plurality of free rollers (23) for supporting the seedling tray are mounted on both sides of the bracket in a symmetrical rotation along the length direction, and the plurality of free rollers (23) are all located directly below the adjustment mechanism (6).

8. The adjustable seedling tray stacking structure according to claim 1, characterized in that: A monitoring controller for controlling the number of seedling trays on the movable plate (5) at a time is installed on the frame (1) below the tray stacking station (11).

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