Plug stacking device

Abstract

The utility model belongs to the technical field of seedling raising and sowing mechanical equipment, and particularly relates to a plug tray stacking device. A conveying mechanism is arranged on the machine frame, a lifting mechanism is arranged on the machine frame below the conveying mechanism, a jacking support is arranged on the lifting mechanism, rotating shafts are arranged on the machine frame on the two sides of the jacking support, and a plurality of supporting claws are arranged on the rotating shafts at intervals. In a normal state, the minimum distance between the supporting claws on the two sides of the rack is smaller than the width of the hole tray, and the supporting claws abut against the abutting part of the rack. When the plug tray moves from bottom to top, the plug tray pushes the supporting claws on the two sides to reversely rotate around the rotating shaft; the supporting claws on the two sides oppositely rotate around the rotating shaft to reset after the plug tray passes through so as to support the plug tray above the supporting claws; according to the utility model, the supporting claws are kept in a closed state in a normal state and can support a hole tray above; when a new hole tray is jacked, the supporting claws are pushed away to allow the new hole tray to pass through, then automatic reset supporting is achieved, layer-by-layer stacking is achieved, the structure is simple and reliable, and the stacking process is completed through mechanical actions.

Description

Technical fields:

[0001] This utility model belongs to the technical field of seedling sowing machinery and equipment, and specifically refers to a seedling tray stacking device. Background technology:

[0002] Stacking seedling trays is the final step in factory-scale seedling production. After sowing, covering with soil, and watering, the seedling trays are stacked into piles for easy transport to the seedling room.

[0003] Chinese invention patent (publication number CN 110626805A, publication date 2019.12.31) discloses a conveyor chain type seedling tray stacking device and method. The conveyor chain type seedling tray stacking device includes a frame, a tray conveying mechanism, a tray lifting mechanism, and a lifting drive mechanism. The tray conveying mechanism, tray lifting mechanism, and lifting drive mechanism are respectively mounted on the frame. The tray conveying mechanism is located in the middle of the frame, and tray lifting mechanisms are respectively arranged on both sides of the tray conveying mechanism. Each tray lifting mechanism is connected to the lifting drive mechanism. The tray lifting mechanism includes a rotating conveying component and tray lifting elements. Along the conveying direction of the rotating conveying component, a plurality of tray lifting elements are evenly spaced on the rotating conveying component. The distance between two adjacent tray lifting elements along the tray lifting direction is greater than the height of a single tray. After the acupuncture trays are delivered to the designated location, the acupuncture tray lifting drive mechanism drives the rotating tray lifting mechanism to lift and raise the acupuncture trays until the number of acupuncture trays lifted by the tray lifting mechanism reaches the set number of acupuncture trays to be stacked. Then, the lifting drive mechanism drives the acupuncture tray lifting mechanisms located on both sides of the acupuncture tray conveying mechanism to run in the opposite direction. The acupuncture tray lifting components gradually descend, stacking the acupuncture trays one by one from bottom to top on the acupuncture tray conveying mechanism.

[0004] The above-mentioned seedling tray stacking device has a complex structure, and the tray lifting mechanisms on both sides must operate in strict synchronization, otherwise the trays may tilt, get stuck, or even fall off. Summary of the Invention:

[0005] The purpose of this invention is to provide a simple structure and a stable stacking device for cavity trays.

[0006] This utility model is implemented as follows:

[0007] A calyx tray stacking device includes a frame, a conveying mechanism for conveying calyx trays on the frame, a lifting mechanism on the frame below the conveying mechanism, a lifting bracket for supporting the calyx trays on the lifting mechanism, and rotating shafts on the frame on both sides of the lifting brackets along the length of the frame. A plurality of support claws are spaced apart on the rotating shafts, with the lower end of each support claw rotatably connected to the rotating shaft and the upper end serving as a support end. Normally, the minimum distance between the support claws on both sides of the frame is less than the width of the calyx tray, and the support claws abut against the abutment portion of the frame. When the calyx tray supported on the lifting bracket moves upward under the drive of the lifting mechanism, the calyx tray pushes the support claws on both sides to rotate in opposite directions around the rotating shafts to allow the calyx tray to pass through. After the calyx tray passes, the support claws on both sides rotate in opposite directions around the rotating shafts to reset and support the calyx tray above the support claws.

[0008] In the aforementioned tray stacking device, the support claw includes a mounting part rotatably connected to a rotating shaft and a support part mounted on the mounting part.

[0009] In the aforementioned cavity plate stacking device, the rotating shaft can be segmented, with each rotating shaft having a corresponding rotatable support claw.

[0010] In the aforementioned tray stacking device, the frame is provided with a support claw through hole for the support claw to extend out. The long center line of the support claw through hole is arranged along the width direction of the frame. The side wall of the support claw through hole near the conveying mechanism is abutting part, and the side wall away from the conveying mechanism is a limiting part that restricts the rotation angle of the support claw. The support claw rotates between the abutting part and the limiting part.

[0011] In the aforementioned cavity tray stacking device, the frames on both sides of the lifting support are provided with limiting seats to limit the position of the cavity trays.

[0012] In the aforementioned tray stacking device, pads are respectively provided on the frame on both sides of the lifting bracket. The pads are provided with opening slots that correspond one-to-one with the through holes of the support claws. When the support claws extend out of the opening slots and abut against the end of the opening slot corresponding to the limiting part, it is the maximum angle of rotation. The limiting seat is installed on the pads.

[0013] In the aforementioned tray stacking device, the limiting seat is provided with an elongated hole, the long center line of which is arranged along the width direction of the frame, for adjusting the width between the limiting seats on both sides of the frame.

[0014] In the aforementioned tray stacking device, the lifting support includes a lower frame mounted on a lifting mechanism, and a support frame is mounted on the lower frame. The support frame includes two vertical parts and a horizontal part connecting the two vertical parts.

[0015] In the aforementioned cavity plate stacking device, the vertical and horizontal portions are flat.

[0016] In the aforementioned tray stacking device, the lifting mechanism includes two sets of scissor-shaped support arms. The two support arms are connected by a tie rod. One end of the lower part of the two support arms is connected to the base via a lower drive shaft and is rotatably connected to the base via a lower roller. The other end is fixedly connected to the base. One end of the upper part of the two support arms is connected to the lower frame via an upper drive shaft and is rotatably connected to the lower frame via an upper roller. The other end is fixedly connected to the lifting bracket. A drive motor is also provided on the base. The drive motor is rotatably connected to one end of the rotating tie rod via an eccentric seat. The other end is connected to the lower drive shaft via a shift fork.

[0017] The outstanding advantages of this utility model compared to the prior art are:

[0018] The support claws of this utility model remain closed under normal conditions (the spacing is less than the width of the cavity plate) and can support the cavity plate above. When a new cavity plate is lifted, the support claws are pushed open to allow passage, and then automatically reset to support, realizing layer-by-layer stacking. The structure is simple and reliable, and the stacking process is completed by mechanical action. Attached image description:

[0019] Figure 1 This is a schematic diagram of the supporting claw of this utility model supporting one cavity plate and the other cavity plate located above the lifting bracket;

[0020] Figure 2 This is a three-dimensional schematic diagram of the support claw of this utility model in its normal state;

[0021] Figure 3 yes Figure 2 A magnified view of a portion of the image;

[0022] Figure 4 This is a schematic diagram of the lifting mechanism of this utility model installed on the base;

[0023] Figure 5 This is a schematic diagram of the support claw of this utility model.

[0024] In the diagram: 1. Frame; 2. Seed tray; 3. Lifting mechanism; 4. Lifting bracket; 5. Rotating shaft; 6. Support claw; 7. Abutment part; 8. Mounting part; 9. Supporting part; 10. Limiting seat; 11. Long strip hole; 12. Pad plate; 13. Opening slot; 14. Lower frame; 15. Vertical part; 16. Horizontal part; 17. Tie rod; 18. Lower drive shaft; 19. Lower roller; 20. Base; 21. Drive motor; 22. Eccentric seat; 23. Rotating tie rod; 24. Shift fork. Detailed implementation method:

[0025] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —5:

[0026] This invention provides a calyx tray stacking device, which includes a frame 1. A conveying mechanism for conveying calyx trays 2 is mounted on the frame 1. A lifting mechanism 3 is mounted on the frame 1 below the conveying mechanism. A lifting bracket 4 supporting the calyx trays 2 is mounted on the lifting mechanism 3. Rotating shafts 5 are mounted on the frame 1 along the length of the frame 1 on both sides of the lifting bracket 4. In this embodiment, the rotating shafts 5 are welded or fixed to the side walls of the frame 1 by screws. A plurality of support claws 6 are spaced apart on the rotating shafts 5. The lower end of each support claw 6 is rotatably connected to the rotating shaft 5, and the upper end serves as a support for the calyx trays 2. Under normal conditions, the minimum distance between the support claws 6 on both sides of the frame 1 is less than the width of the calyx trays 2, and at this time, the support claws 6 abut against the abutment portion 7 of the frame 1. When the acupoint 2 supported on the lifting bracket 4 moves upward from bottom to top under the drive of the lifting mechanism, the acupoint 2 pushes the support claws 6 on both sides to rotate in opposite directions around the pivot 5 to allow the acupoint 2 to pass through; after the acupoint 2 passes through, the support claws 6 on both sides rotate in opposite directions around the pivot 5 to reset and support the acupoint 2 above the support claws 6.

[0027] This invention utilizes the unidirectional degree of freedom of the supporting claw 6. When the cavity plate 2 enters the lifting bracket 4, the lifting mechanism drives the lifting bracket 4 to move upward from bottom to top. The cavity plate 2 pushes the supporting claw 6 to rotate around the pivot 5, allowing the cavity plate 2 to pass through. After the cavity plate 2 has passed through, it returns to its original position under its own weight and rests against the abutment part 7. The lifting mechanism then drives the lifting bracket 4 to move downward, supporting it on the supporting claw 6. As can be seen, this invention simplifies the structure, has a low failure rate, and the bottom-up, layer-by-layer stacking avoids tilting or collapse caused by a shift in the center of gravity during stacking. Furthermore, the rotational degree of freedom design of the supporting claw 6 allows cavity plates 2 of different thicknesses or edge structures to pass through, making it compatible with stacking cavity plates 2 of different sizes.

[0028] Furthermore, the support claw 6 of this utility model includes a mounting part 8 rotatably mounted on a rotating shaft 5 and a support part 9 fixed on the mounting part 8. The support part 9 and the mounting part 8 are detachably connected by screws, allowing for the replacement of different support parts 9 to match the stacking of different cavity trays 2, while also facilitating maintenance.

[0029] It should be noted that the rotating shaft 5 of this invention can be segmented, that is, each rotating shaft is provided with a corresponding support claw 6. In this embodiment, it is preferable to provide multiple support claws 6 on one rotating shaft 5.

[0030] This invention provides a support claw through hole on the frame 1 for the support claw 6 to extend out. The long center line of the support claw through hole is arranged along the width direction of the frame 1. The side wall of the support claw through hole near the conveying mechanism is abutting part 7, and the side wall away from the conveying mechanism is a limiting part that restricts the rotation angle of the support claw 6. The support claw 7 rotates within the abutting part and the limiting part. The arrangement of the support claw 6 through hole, abutting part 7, and limiting part precisely limits the rotation range of the support claw 6, ensuring that it can reliably support the cavity plate 2 and open smoothly during lifting, preventing excessive overturning or jamming.

[0031] To limit the movement of the acupuncture trays 2 during stacking and lifting, limit seats 10 are provided on the frames 1 on both sides of the lifting bracket 4. The limit seats 10 can prevent the acupuncture trays 2 from shifting or tilting during stacking, ensuring the neatness of the stack.

[0032] Specifically, the limiting seat 10 is provided with an elongated hole 11, the long center line of which is set along the width direction of the frame 1, for adjusting the width between the limiting seats 10 on both sides of the frame 1, adapting to different sized cavities, and improving the versatility of the device.

[0033] This invention also includes pads 12 on the frames 1 on both sides of the lifting bracket 4. Each pad 12 has an opening slot 13 corresponding to the through hole of the support claw. The support claw 6 extends out of the opening slot 13. When the support claw 6 abuts against the end of the opening slot 13 corresponding to the limiting part, it reaches its maximum rotation angle. The limiting seat 10 is mounted on the pad 12. The opening slot 13 and the limiting part work together to control the maximum rotation angle of the support claw 6, avoiding mechanical interference.

[0034] In addition, the lifting bracket 4 of this utility model includes a lower frame 14 mounted on the lifting mechanism, and a support frame is mounted on the lower frame 14. The support frame includes two vertical parts 15 and a horizontal part 16 connecting the two vertical parts 15.

[0035] It should be noted that the vertical part 15 and the horizontal part 16 are flat, which can increase the contact area with the cavity plate 2 and improve the lifting effect.

[0036] The lifting mechanism of this utility model includes two sets of scissor-shaped support arms, which are connected by a tie rod 17. One end of the lower part of each support arm is connected to a lower drive shaft 18 and rolled to a base 20 via a lower roller 19, while the other end is fixedly connected to the base 20. One end of the upper part of each support arm is connected to a higher drive shaft and rolled to a lower frame 14 via an upper roller, while the other end is fixedly connected to the lower frame 14. A drive motor 21 is also provided on the base 20. The drive motor 21 is rotatably connected to one end of a rotating tie rod 23 via an eccentric seat 22, and the other end is connected to the lower drive shaft 18 via a shift fork 24. A bearing seat is fixedly provided at one end of the rotating tie rod 23, and a bearing is provided inside the bearing seat. The bearing is rotatably connected to the eccentric seat 22 via a short shaft.

[0037] The rotation of the drive motor 2's shaft causes the eccentric seat 22 to rotate, which in turn drives the rotating pull rod 23 to move, pulling the lower drive shaft 18 back and forth. This causes the lower roller 19 to roll on the base 20, and the scissor-type support arm drives the lifting bracket 4 to move up and down. The rotation is converted into linear motion through the eccentric seat 22, the rotating pull rod 23, and the fork 24. The structure is compact and the thrust is uniform, ensuring a stable and reliable lifting process.

[0038] The working principle of this utility model is as follows:

[0039] The acupoint plate 2 (acupoint plate one) is conveyed to the top of the lifting bracket 4 via the conveying mechanism. The lifting mechanism 3 drives the lifting bracket 4 to rise, so that the acupoint plate 2 is supported on the lifting bracket 4. The lifting mechanism 3 continues to rise, and the acupoint plate 2 on the lifting bracket 4 pushes the support claws 6 on both sides to rotate in the opposite direction around the rotating shaft 5 to allow the acupoint plate 2 to pass through.

[0040] Under its own weight, the support claw 6 returns to its original position and rests against the abutment part 7. The lifting mechanism 3 drives the lifting bracket 4 to move from top to bottom. At this time, the minimum distance between the support claws 6 on both sides of the frame 1 is less than the width of the cavity plate 2. The lifting bracket 4 continues to move downward with the lifting mechanism 3, while the cavity plate 2 is supported on the support claw 6 and no longer moves downward.

[0041] The next acupuncture plate (acupuncture plate two) is conveyed to the top of the lifting support 4 via the conveying mechanism. The lifting mechanism 3 drives the acupuncture plate 2 to move from bottom to top, pushing the support claws 6 on both sides to rotate in the opposite direction around the rotating shaft 5 to allow the acupuncture plate 2 to pass through. The lifting support 4 continues to rise, so that acupuncture plate two is stacked with acupuncture plate one below. At this time, the lifting support 4 supports two acupuncture plates. After the support claws 6 are reset, the lifting support 4 moves down with the lifting mechanism 3. The stacked acupuncture plates 2 are supported on the support claws 6. This process is repeated until the corresponding number of acupuncture plates 2 are stacked. Then, the stacked acupuncture plates are transferred from the support claws 6 to another location.

[0042] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A device for stacking cavity trays, characterized in that: Includes a frame (1), on which a conveying mechanism for conveying the acupuncture plate (2) is provided. Below the conveying mechanism, a lifting mechanism (3) is provided on the frame (1). On the lifting mechanism (3), a lifting support (4) is provided to support the acupuncture plate (2). Rotating shafts (5) are provided on the frame (1) on both sides of the lifting support (4) along the length of the frame (1). Several support claws (6) are spaced apart on the rotating shafts (5). The lower end of each support claw (6) is rotatably connected to the rotating shaft (5), and the upper end serves as a support end. Under normal conditions, the frame ( 1) The minimum distance between the support claws (6) on both sides is less than the width of the cavity plate (2), and the support claws (6) abut against the abutment part (7) of the frame (1); when the cavity plate (2) supported on the lifting bracket (4) moves from bottom to top under the drive of the lifting mechanism (3), the cavity plate (2) pushes the support claws (6) on both sides to rotate in opposite directions around the rotating shaft (5) to allow the cavity plate (2) to pass; after the cavity plate (2) passes, the support claws (6) on both sides rotate in opposite directions around the rotating shaft (5) to reset and support the cavity plate (2) above the support claws (6).

2. The tray stacking device according to claim 1, characterized in that: The support claw (6) includes a mounting part (8) rotatably connected to the rotating shaft (5) and a support part (9) mounted on the mounting part (8).

3. A tray stacking device according to claim 1 or 2, characterized in that: The rotating shaft (5) can be segmented, and each rotating shaft (5) is provided with a corresponding support claw (6).

4. The tray stacking device according to claim 1, characterized in that: The frame (1) is provided with a support claw through hole for the support claw (6) to extend out. The long center line of the support claw (6) through hole is set along the width direction of the frame (1). The side wall of the support claw through hole near the conveying mechanism is the abutment part (7), and the side wall away from the conveying mechanism is the limiting part that restricts the rotation angle of the support claw (6). The support claw (6) rotates between the abutment part (7) and the limiting part.

5. The tray stacking device according to claim 4, characterized in that: The lifting bracket (4) has a limiting seat (10) on the frame (1) on both sides to limit the position of the acupuncture plate (2).

6. The tray stacking device according to claim 5, characterized in that: Pads (12) are respectively provided on the frame (1) on both sides of the lifting bracket (4). The pads (12) are provided with opening slots (13) that correspond one-to-one with the through holes of the support claws. The support claws (6) extend out of the opening slots (13). When the support claws (6) abut against the end of the opening slots (13) corresponding to the limiting part, it is the maximum angle of rotation. The limiting seat (10) is installed on the pads (12).

7. The tray stacking device according to claim 6, characterized in that: The limiting seat (10) is provided with an elongated hole, the long center line of which is set along the width direction of the frame (1) to adjust the width between the limiting seats (10) on both sides of the frame (1).

8. The tray stacking device according to claim 1, characterized in that: The lifting support (4) includes a lower frame (14) mounted on the lifting mechanism (3), and a support frame is mounted on the lower frame (14). The support frame includes two vertical parts (15) and a horizontal part (16) connecting the two vertical parts (15).

9. A tray stacking device according to claim 8, characterized in that: The vertical part (15) and the horizontal part (16) are flat.

10. A tray stacking device according to claim 1, characterized in that: The lifting mechanism (3) includes two sets of scissor-shaped support arms. The two support arms are connected by a pull rod (17). One end of the lower part of the two support arms is connected by a lower drive shaft (18) and is rolled to the base (20) by a lower roller (19). The other end is fixedly connected to the base (20). One end of the upper part of the two support arms is connected by an upper drive shaft and is rolled to the lower frame (14) by an upper roller. The other end is fixedly connected to the lifting bracket (4). A drive motor (21) is also provided on the base (20). The drive motor (21) is rotatably connected to one end of the rotating pull rod (23) by an eccentric seat (22). The other end is connected to the lower drive shaft (18) by a fork (24).

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