Seedling feeding device and rice transplanter comprising same

Abstract

The seedling feeding device comprises two fixing frames fixedly arranged on the two sides of a seedling transplanting vehicle and a seedling receiving mechanism adjacent to the rear portions of the fixing frames, each fixing frame is provided with a bottom-layer conveying belt and an upper-layer conveying belt from bottom to top, and the bottom-layer conveying belts and the upper-layer conveying belts are used for conveying seedling blocks. The first end of the upper-layer conveying belt is hinged to the fixing frame. The seedling receiving mechanism comprises a seedling receiving conveyor belt of which the first end is hinged with the transplanting vehicle, a first driving assembly arranged at the bottom of the seedling receiving conveyor belt and a second driving assembly hinged between the second end of the upper conveyor belt and the fixing frame; the seedling receiving conveyor belt has the same rotating speed as the bottom conveyor belt and the upper conveyor belt. In the implementation mode, the rotating speed of the seedling receiving conveying belt is the same as that of the bottom-layer conveying belt and that of the upper-layer conveying belt, so that when the seedling blocks are received by the seedling receiving conveying belt, the acting force for conveying is the same, the seedling blocks are prevented from being damaged due to extrusion, and the reliability of the seedling feeding device for conveying the seedling blocks is improved.

Description

Technical Field

[0001] This utility model relates to the field of rice transplanter technology, and in particular to a rice seedling loading device and a rice transplanter including the rice seedling loading device. Background Technology

[0002] As an important tool in modern agriculture, rice transplanters not only ensure the quality of rice transplanting but also significantly improve operational efficiency, save manpower, and thus reduce labor costs.

[0003] The relevant rice transplanters typically transfer seedling blocks to the transplanting device, and then continuously transplant seedlings as the transplanter moves. Patent CN109937656A discloses a high-speed rice transplanter, a high-speed seedling delivery method, and a high-speed transplanting method. The seedling delivery unit 22 transfers seedling blocks to the sorting unit 223 via the conveying body 221, and then the sorting unit 223 arranges the seedling blocks into the seedling channel 311 of the transplanting device 30.

[0004] The aforementioned conveying body 221 is implemented as a conveyor belt, that is, the seedling blocks are conveyed to the sorting section 223 by the conveyor belt. However, when the front end of the seedling block falls into the sorting section 223, the sorting section 223 will generate resistance towards the conveyor belt, while the rear end of the seedling block is still conveyed towards the sorting section 223 by the conveyor belt.

[0005] Therefore, the rear end of the seedling block will compress the front end, causing the seedling block to be compressed and potentially damaging its structure. If the seedling block is damaged, the seedlings will be unevenly distributed, affecting the quality of the transplanting process. Utility Model Content

[0006] The summary section of this utility model is intended to briefly introduce the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0007] Some embodiments of this utility model provide a seedling loading device and a rice transplanter including the seedling loading device to solve the technical problems mentioned in the background section above.

[0008] In a first aspect, some embodiments of this utility model provide a rice seedling loading device, including two fixed frames fixed to both sides of a rice transplanter and a seedling receiving mechanism adjacent to the rear of the fixed frames, wherein...

[0009] Each fixed frame is provided with a bottom conveyor belt and an upper conveyor belt for transporting seedling blocks from bottom to top, and the first end of the upper conveyor belt is hinged to the fixed frame;

[0010] The seedling receiving mechanism includes a seedling receiving conveyor belt with its first end hinged to the rice transplanter, a first drive assembly disposed at the bottom of the seedling receiving conveyor belt, and a second drive assembly hinged between the second end of the upper conveyor belt and the fixed frame, wherein the seedling receiving conveyor belt rotates at the same speed as the bottom conveyor belt and the upper conveyor belt.

[0011] The first driving component is used to move the rice-receiving conveyor belt to be coplanar with any of the underlying conveyor belts;

[0012] The second drive component is used to tilt the second end of the upper conveyor belt so that it is coplanar with the second end of the flipped rice-receiving conveyor belt.

[0013] Secondly, some embodiments of the present invention provide a rice transplanter, including a rice transplanter cart, a rice seedling loading device disposed on the upper end of the rice transplanter cart, and a rice transplanting assembly disposed at the rear of the rice transplanter cart, wherein the rice seedling loading device is the rice seedling loading device described in any embodiment of the first aspect.

[0014] The above embodiments of this utility model have the following beneficial effects: the seedling loading device of this utility model can avoid the seedling blocks from being squeezed and damaged, improve the reliability of the seedling loading device in transporting seedling blocks, and ensure the quality of rice transplanting.

[0015] Specifically, the reason why the seedling blocks are squeezed and damaged is that during the process of conveying the seedling blocks to the sorting section, when the front end of the seedling block falls into the sorting section, the sorting section generates resistance towards the conveyor belt, while the rear end of the seedling block is still conveyed towards the sorting section by the conveyor belt, thus causing the seedling block to be squeezed.

[0016] Based on this, in some embodiments of the seedling loading device of this utility model, the bottom conveyor belt, the upper conveyor belt, and the seedling receiving conveyor belt are made coplanar through the first drive component and the second drive component, allowing the seedling blocks to be transported on a flat working surface. Furthermore, the seedling receiving conveyor belt rotates at the same speed as the bottom and upper conveyor belts, ensuring that the seedling blocks experience the same force during transport when received by the seedling receiving conveyor belt. This prevents the seedling blocks from being squeezed and damaged, thus improving the reliability of the seedling loading device in transporting seedling blocks. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of one embodiment of the seedling loading device of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of one embodiment of the bottom conveyor belt for transporting seedling blocks according to this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of one embodiment of the rice-receiving conveyor belt of this utility model after it has been flipped.

[0021] Figure 4 This is a schematic diagram of the structure of one embodiment of the rice-receiving conveyor belt of this utility model after it has been moved.

[0022] Figure 5 This is a schematic diagram of the structure of one embodiment of the upper conveyor belt for transporting seedling blocks according to this utility model;

[0023] Figure 6 This is a side view of one embodiment of the rice-receiving conveyor belt of this utility model after it has been flipped.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Rice transplanter; 2. Fixed frame; 3. Bottom conveyor belt; 4. Upper conveyor belt;

[0026] 5. Seedling receiving mechanism; 51. Seedling receiving conveyor belt; 52. First telescopic rod; 53. Bearing plate; 54. First drive assembly; 541. Lead screw; 542. Lead screw motor; 55. Guide rail; 56. Second drive assembly; 561. Second telescopic rod; 562. Connecting frame; 6. Transplanting mechanism; 61. Slide rail; 62. Sliding wheel; 63. Transplanting assembly; 7. Seedling block. Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Please refer to the following first. Figure 1 , Figure 1 This is a schematic diagram of one embodiment of the seedling loading device of this utility model. Figure 1 As shown, the rice seedling loading device of this utility model includes two fixed frames 2 fixed to both sides of the driver's seat of the rice transplanter 1. Each fixed frame 2 has a bottom conveyor belt 3 and an upper conveyor belt 4 arranged from bottom to top. The bottom conveyor belt 3 and the upper conveyor belt 4 are used to place the seedling blocks 7 before transplanting.

[0032] The aforementioned bottom conveyor belt 3 and upper conveyor belt 4 have the same structure. Taking the bottom conveyor belt 3 as an example, it includes a drive wheel and a driven wheel arranged at intervals, as well as a belt wound around the drive wheel and the driven wheel. The drive wheel is located close to the front of the rice transplanter 1, while the driven wheel is located away from the front of the rice transplanter 1. Furthermore, the diameter of the aforementioned drive wheel can be larger than that of the driven wheel. In this way, the contact area between the drive wheel and the belt is larger, increasing the friction and thus providing a more stable torque output.

[0033] Near the right side of the mounting bracket 2 ( Figure 1 The upper end of the rice transplanter 1 (in the direction of the middle) is provided with a seedling receiving mechanism 5. The seedling receiving mechanism 5 is used to receive the seedling blocks 7 transmitted by the bottom conveyor belt 3 and the upper conveyor belt 4, and transmit the seedling blocks 7 to the rice transplanting mechanism 6 set at the rear of the rice transplanter 1.

[0034] Please see Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the structure of one embodiment of the bottom conveyor belt for transporting seedling blocks according to this utility model; Figure 3 This is a schematic diagram of the structure of one embodiment of the rice-receiving conveyor belt of this utility model after it has been flipped. Figure 2 and Figure 3As shown, the above-mentioned seedling receiving mechanism 5 may include a seedling receiving conveyor belt 51, a first telescopic rod 52, a bearing plate 53, and a first drive assembly 54. The first end of the seedling receiving conveyor belt 51 ( Figure 3 The right end of the first telescopic rod 52 is hinged to the support plate 53. Both ends of the first telescopic rod 52 are hinged between the seedling receiving conveyor belt 51 and the support plate 53. The first drive assembly 54 is disposed at the bottom of the support plate 53 to drive the seedling receiving conveyor belt 51 to move along the width direction of the rice transplanter 1, thereby docking with any of the bottom conveyor belts 3.

[0035] The driving wheel of the aforementioned seedling conveyor belt 51 can also be larger in diameter than the driven wheel, similar to the bottom conveyor belt 3 and the upper conveyor belt 4. This increases the contact area between the driving wheel and the belt, thereby increasing friction and providing a more stable torque output. Figure 2 As shown, during the process of the seedling receiving conveyor belt 51 receiving the seedling block 7, the aforementioned first telescopic rod 52 drives the seedling receiving conveyor belt 51 to rotate around the hinge axis, causing the second end of the seedling receiving conveyor belt 51 ( Figure 2 The left end of the seedling block 7 is coplanar with the bottom conveyor belt 3. Furthermore, the rotational speed of the seedling receiving conveyor belt 51 can be the same as that of the bottom conveyor belt 3. In this way, when the front end of the seedling block 7 is received by the seedling receiving conveyor belt 51, the seedling receiving conveyor belt 51 will move the seedling block 7 at the same speed as the bottom conveyor belt 3, which can prevent the seedling block 7 from being squeezed and damaged, and improve the reliability of the seedling feeding device in transferring the seedling block 7.

[0036] Furthermore, the driven wheel of the seedling receiving conveyor belt 51 can be located at the second end of the seedling receiving conveyor belt 51, and the driven wheel of the bottom conveyor belt 3 can be located at the second end of the bottom conveyor belt 3. When the seedling receiving conveyor belt 51 and the bottom conveyor belt 3 are coplanar, the transition gap can be made smaller due to the smaller diameter of the driven wheel. In this way, it can be avoided that when the seedling block 7 passes through the above-mentioned transition gap, it will sag due to its own weight due to the excessive transition gap, which will cause the tension at both ends to change (forming an angle), the horizontal tension will be decomposed, and the overall structure of the seedling block 7 will become loose due to insufficient tension.

[0037] like Figure 3 As shown, after the seedling block 7 is completely received by the seedling receiving conveyor belt 51, the first telescopic rod 52 extends, causing the seedling receiving conveyor belt 51 to rotate clockwise around the hinge axis. Figure 3 The direction of the seedlings is reversed, and under the transmission action of the seedling receiving conveyor belt 51, the seedling block 7 slides into the seedling transplanting mechanism 6. Finally, the first telescopic rod 52 retracts until the seedling receiving conveyor belt 51 is coplanar with the bottom conveyor belt 3, and continues to receive the next seedling block 7.

[0038] Please see Figure 4 , Figure 5 and Figure 6 , Figure 4 This is a schematic diagram of the structure of one embodiment of the rice-receiving conveyor belt of this utility model after it has been moved. Figure 5 This is a schematic diagram of the structure of one embodiment of the upper conveyor belt for transporting seedling blocks according to this utility model; Figure 6 This is a side view of one embodiment of the rice-receiving conveyor belt of this utility model after it has been flipped. Figure 4 and Figure 5 As shown, when the left side ( Figure 4 After all the seedling blocks 7 on the bottom conveyor belt 3 (in the middle direction) have been received, the seedling receiving conveyor belt 51 can move to the right through the first drive component 54 and dock with the bottom conveyor belt 3 on the right.

[0039] like Figure 5 As shown, the first drive assembly 54 includes a lead screw motor 542 and a lead screw 541 connected to each other. The lead screw 541 is positioned along the width direction of the rice transplanter 1 to the bottom of the support plate 53. A lead screw nut can be fitted onto the lead screw 541, and the lead screw nut is fixedly connected to the bottom of the support plate 53. In operation, the lead screw motor 542 drives the lead screw 541 to rotate, causing the lead screw nut to drive the rice-receiving conveyor belt 51 to move along the axial direction of the lead screw 541 until it aligns with the bottom conveyor belt 3 on the right side.

[0040] Furthermore, guide rail grooves are fixed at both ends of the bottom of the support plate 53, arranged along the width direction of the rice transplanter 1. Correspondingly, two guide rails 55 are fixed on the rice transplanter 1. In the assembled state, the two guide rail grooves and the two guide rails 55 are matched one-to-one, and the two guide rail grooves and the two guide rails 55 are slidably connected. In this way, the support plate 53 can move along the guide rails 55, thereby restricting the movement direction of the rice seedling conveyor belt 51 and improving the reliability of the rice seedling loading device.

[0041] After the seedling blocks 7 on both bottom conveyor belts 3 have been received, the seedling receiving conveyor belt 51 continues to transfer the seedling blocks 7 placed on the upper conveyor belt 4. The following transfer... Figure 5 The following explanation will be based on the seedling block 7 on the upper conveyor belt 4 on the left side of the middle section. Figure 5 As shown, each fixed frame 2 faces the side of the seedling conveyor belt 51 ( Figure 5 On the right side of the image, a second drive assembly 56 can also be provided, including a second telescopic rod 561 and a connecting frame 562. The upper end of the second telescopic rod 561 is hinged to the upper end of the fixed frame 2, and the lower end of the second telescopic rod 561 is connected to the connecting frame 562. The connecting frame 562 is connected to the second end of the upper conveyor belt 4. Figure 5 The right end of the middle) is hinged, and the first end of the upper conveyor belt 4 ( Figure 5 The left end of the bracket is also hinged to the fixed frame 2.

[0042] like Figures 4 to 6As shown, when the lead screw 541 drives the seedling receiving conveyor belt 51 to align with the bottom conveyor belt 3, the first telescopic rod 52 drives the seedling receiving conveyor belt 51 to rotate clockwise around the hinge axis. At the same time, the second telescopic rod 561 extends, causing the upper conveyor belt 4 to rotate clockwise around the hinge axis until the second end of the seedling receiving conveyor belt 51 ( Figure 5 The left end of the middle section and the second end of the upper conveyor belt 4 ( Figure 5 After the right end of the middle is coplanar, the upper conveyor belt 4 and the seedling receiving conveyor belt 51 run at the same speed, so that the seedling block 7 will not be squeezed during the process of being received by the seedling receiving conveyor belt 51.

[0043] Similarly, the driven wheel of the upper conveyor belt 4 can be located at the second end of the upper conveyor belt 4. When the seedling receiving conveyor belt 51 is coplanar with the upper conveyor belt 4, the transition gap can be smaller due to the smaller diameter of the driven wheel. In this way, the overall structure of the seedling block 7 can be prevented from becoming loose due to insufficient tension when passing through the aforementioned transition gap.

[0044] The first telescopic rod 52 and the second telescopic rod 561 drive the seedling receiving conveyor belt 51 and the upper conveyor belt 4 to rotate respectively. This not only improves the docking efficiency, but also avoids interference between the upper conveyor belt 4 and the lower conveyor belt 3 after rotation, thus improving the reliability of the seedling loading device.

[0045] like Figure 6 As shown, after the seedling receiving conveyor belt 51 has fully received the seedling block 7, the first telescopic rod 52 continues to extend, allowing the seedling block 7 to slide into the transplanting mechanism 6. Next, the first telescopic rod 52 retracts, making the seedling receiving conveyor belt 51 coplanar with the upper conveyor belt 4, and then receiving the next seedling block 7, until all the seedling blocks 7 on the upper conveyor belt 4 have been transferred to the transplanting mechanism.

[0046] Finally, driven by the lead screw 541, the seedling receiving conveyor belt 51 receives the seedling blocks 7 on the upper conveyor belt 4 on the right. After all the seedling blocks 7 have completed the transplanting operation, the workers can place the seedling blocks 7 on the bottom conveyor belt 3 and the upper conveyor belt 4 for subsequent transplanting work.

[0047] It should be noted that the seedling receiving conveyor belt 51 can first receive the seedling blocks 7 from the two bottom conveyor belts 3, and then receive the seedling blocks 7 from the two top conveyor belts 4. Alternatively, it can first receive the seedling blocks 7 from the two top conveyor belts 4, and then receive the seedling blocks 7 from the two bottom conveyor belts 3, or the seedling receiving conveyor belt 51 can alternately receive the seedling blocks 7 from the bottom conveyor belts 3 and the top conveyor belts 4. Those skilled in the art can adjust this according to the actual situation.

[0048] Revisit Figure 1The present invention also provides a high-speed rice transplanter, including a rice transplanter 1, a rice seedling loading device and a rice transplanting mechanism 6. The rice seedling loading device is installed on the rice transplanter 1, and the rice transplanting mechanism 6 is installed at the rear of the rice transplanter 1. The rice seedling loading device is the rice seedling loading device described in the above embodiments.

[0049] The aforementioned rice transplanting mechanism 6 includes multiple inclined slides 61, each slide having multiple rotatable sliding wheels 62 at its upper end to reduce friction during the transmission of the seedling blocks 7. Each slide 61 has a rice transplanting assembly 63 at its lower end.

[0050] In operation, after receiving the seedling block 7, the lead screw 541 of the seedling receiving conveyor belt 51 of the seedling feeding device aligns the seedling receiving conveyor belt 51 with any of the slide rails 61. Next, the first telescopic rod 52 extends, causing the seedling receiving conveyor belt 51 to rotate to an angle coplanar with the slide rail 61. Then, the seedling receiving conveyor belt 51 moves the seedling block 7 to the slide rail 61, and finally the transplanting assembly 63 completes the transplanting operation.

[0051] It should be noted that those skilled in the art can determine the above-mentioned rice transplanting components based on existing technology, and no limitation is made here.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A seedling loading device, characterized in that, This includes two fixed frames on both sides of the rice transplanter and a rice-receiving mechanism located immediately behind the fixed frames. Each fixed frame is provided with a bottom conveyor belt and an upper conveyor belt for transporting seedling blocks from bottom to top, and the first end of the upper conveyor belt is hinged to the fixed frame; The seedling receiving mechanism includes a seedling receiving conveyor belt with its first end hinged to the rice transplanter, a first drive assembly disposed at the bottom of the seedling receiving conveyor belt, and a second drive assembly hinged between the second end of the upper conveyor belt and the fixed frame, wherein the seedling receiving conveyor belt rotates at the same speed as the bottom conveyor belt and the upper conveyor belt. The first driving component is used to move the rice-receiving conveyor belt to be coplanar with any of the underlying conveyor belts; The second drive component is used to tilt the second end of the upper conveyor belt so that it is coplanar with the second end of the flipped rice-receiving conveyor belt.

2. The seedling loading device according to claim 1, characterized in that, The seedling receiving mechanism also includes a first telescopic rod and a support plate. The bottom of the support plate is connected to the first drive assembly. The two ends of the first telescopic rod are hinged between the seedling receiving conveyor belt and the support plate, and the first end of the seedling receiving conveyor belt is hinged to the support plate.

3. The seedling loading device according to claim 2, characterized in that, The first drive assembly includes a lead screw motor and a lead screw connected to each other. The lead screw is rotatably arranged along the width direction of the rice transplanter. The bearing plate is fixedly connected to the lead screw nut sleeved on the lead screw.

4. The seedling loading device according to claim 3, characterized in that, The bottom of the support plate is fixed with guide rail grooves at both the front and rear ends, which are arranged along the width direction of the rice transplanter.

5. The seedling loading device according to claim 4, characterized in that, The rice transplanter is equipped with guide rails corresponding to two guide rail slots. When assembled, the two guide rail slots and the two guide rails are slidably connected.

6. The seedling loading device according to claim 1, characterized in that, The second drive assembly includes a second telescopic rod, the two ends of which are respectively hinged to the second end of the fixed frame and the upper conveyor belt.

7. The seedling loading device according to claim 6, characterized in that, The lower end of the second telescopic rod is connected to a connecting frame, which is hinged to the second end of the upper conveyor belt.

8. The seedling loading device according to claim 1, characterized in that, The driving wheels of the bottom conveyor belt, the upper conveyor belt, and the seedling receiving conveyor belt have a larger diameter than the driven wheels, and the driven wheels of the bottom conveyor belt and the upper conveyor belt are arranged opposite to the driven wheels of the seedling receiving conveyor belt.

9. A rice transplanter, characterized in that, It includes a rice transplanter, a rice transplanting mechanism disposed on the upper part of the rice transplanter and a rice transplanting mechanism disposed at the rear of the rice transplanter, wherein the rice seedling loading device is the rice seedling loading device as described in any one of claims 1-8.

10. The rice transplanter according to claim 9, characterized in that, The rice transplanting mechanism includes multiple inclined slides, each slide having multiple rotatable sliding wheels at its upper end to reduce friction during seedling transfer, and each slide having a rice transplanting component at its lower end.

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