Seedling feeding and taking mechanism of transplanter

Abstract

The utility model relates to the technical field of seedling taking of transplanters, and discloses a seedling conveying and taking mechanism of a transplanter, which comprises a mounting bracket, a seedling conveying chassis arranged on the mounting bracket and a seedling taking component positioned on one side of the seedling conveying chassis, the chain driving mechanism drives a circulating transverse shaft arranged on the chain driving mechanism to do circulating reciprocating motion in the direction of a chain, and the seedling taking assembly is used for taking seedlings on a seedling taking station and sending the seedlings into the seedling falling assembly located below the seedling taking assembly; under the blocking of the arc-shaped baffle plate, the seedling conveying base plate is bent and enters a cavity at the lower part of the seedling conveying base plate. According to the utility model, the seedling taking action simulates manual work, so that the seedlings are not damaged, and the matrix is not damaged; a seedling taking path is forcibly limited, so that the stability is greatly enhanced while accurate taking and placing are realized; the seedling conveying frame realizes accurate parking to cooperate with seedling taking, and meanwhile, the used seedling tray is not damaged, so that the recovery function is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of transplanter seedling picking, in particular to a seedling delivering and picking mechanism of a transplanter. Background Art

[0002] Currently, crops in my country are mainly cultivated by sowing. With the development and widespread application of seedling transplanting technology, the advantages of seedling transplanting are becoming increasingly prominent. In actual application, seedling transplanting technology is applicable to a variety of crops such as corn, sugar beets, vegetables, and tobacco.

[0003] The key to automatic transplanting machines is to realize the automation of seedling delivery, seedling removal and seedling planting in the plug tray. At present, the seedling removal method of most fully automatic transplanting machines is to take out the seedlings containing the matrix from the top of the plug tray. The equipment structure is complex and has high requirements for the control system, which affects the transplanting efficiency. Overall, it is relatively cumbersome to recover the empty plug trays. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the existing technology, the utility model provides a seedling delivery and retrieval mechanism for a transplanter, which solves the problems of the existing automatic transplanter's seedling delivery and retrieval mechanism having a complex design, high requirements for the control system, and inconvenience in recycling empty hole trays.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The lifting of the ...

[0009] Preferably, a hole tray support is obliquely arranged on the seedling transport chassis, and guiding edges are arranged on both side edges of the upper end surface of the seedling transport chassis.

[0010] Preferably, the chain drive mechanism includes a seedling transporting motor arranged on one side of the seedling transporting chassis, the output shaft of the seedling transporting motor is fixedly connected to the driving sprocket shaft, the driving sprocket shaft cooperates with the driven sprocket shaft arranged in the inner cavity of the output shell to be connected to the transmission chain, the circulating horizontal axis is arranged at equal intervals between the two transmission chains, and the output shell is symmetrically arranged with photoelectric beam switches for detecting whether the seedlings have reached the seedling picking station.

[0011] Preferably, the seedling retrieval assembly includes two clamping frames that can move synchronously toward or away from each other along the X-axis direction, and the clamping frames are provided with pneumatic clamps for clamping the seedling stems. The two clamping frames are symmetrical on the left and right and can move synchronously up and down along the Y-axis direction.

[0012] Preferably, the seedling pluck assembly also includes a mounting base fixedly connected to the mounting bracket, the mounting base is connected to the X-axis movable frame through the seedling pluck motor and the synchronous belt transmission mechanism, and the mounting base is provided with an X-axis guide rail slidingly connected to the lower part of the X-axis movable frame.

[0013] Preferably, the X-axis movable frame is slidably connected to a Y-axis slider, the clamping frame is fixedly arranged on the Y-axis slider, the X-axis movable frame is rotatably connected to a driving screw threadedly connected to the Y-axis slider, the X-axis movable frame is fixedly connected to a lifting motor, and the lifting motor is transmission-connected to one end of the driving screw through a belt drive mechanism.

[0014] (3) Beneficial effects

[0015] The utility model has the following beneficial effects:

[0016] The seedling delivery and retrieval mechanism of the transplanter can drive the intermittent movement of the circulating horizontal axis through the set chain drive mechanism and the circulating horizontal axis. Since the spacing between the circulating horizontal axes matches the hole holes on the hole tray, a row of hole trays at one end of the hole tray can be clamped between the circulating horizontal axes, and then the circulating horizontal axis stably drives the hole tray loaded with seedlings to move to the seedling retrieval station. At this time, the chain drive mechanism stops and cooperates with the seedling retrieval component to retrieve the seedlings at the seedling retrieval station. After retrieval, the seedlings are sent to the seedling dropping component for subsequent planting actions; through the set arc baffle, when each row of seedlings on the hole tray is taken out, the chain drive mechanism can drive the hole tray to continue to move forward through the circulating horizontal axis, and then under the limiting action of the arc baffle, the hole tray is continuously bent and finally flipped 180 degrees and falls into the seedling delivery chassis, thereby realizing the recycling of the hole tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2This is a schematic diagram of the layout structure of the seedling removal component and the seedling delivery component of the utility model;

[0019] Figure 3 This is a schematic diagram of the arc baffle layout structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the installation layout structure of the seedling removal component of the present invention.

[0021] In the figure: 1. Mounting bracket; 2. Seedling transport chassis; 21. Plug tray support plate; 22. Guide edge; 23. Arc baffle; 3. Chain drive mechanism; 31. Seedling transport motor; 32. Driving sprocket shaft; 33. Transmission chain; 34. Circular horizontal axis; 35. Photoelectric beam switch; 4. Seedling removal assembly; 41. Mounting base plate; 42. Seedling removal motor; 43. Synchronous belt mechanism; 44. X-axis moving frame; 45. X-axis guide rail; 46. Clamping frame; 47. Pneumatic gripper; 48. Y-axis slider; 49. Lifting motor; 410. Belt drive mechanism; 411. Driving screw; 5. Seedling drop assembly. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1 The present invention provides a technical solution: a seedling delivery and seedling taking mechanism of a transplanter, comprising a mounting bracket 1, a seedling delivery chassis 2 arranged on the mounting bracket, and a seedling taking assembly 4 located on one side of the seedling delivery chassis 2. A chain driving mechanism is arranged in the inner cavity of the seedling delivery chassis 2, and the chain driving mechanism drives the circulating horizontal shaft 34 arranged thereon to circulate reciprocatingly along the chain direction. The spacing between the two circulating horizontal shafts 34 matches the spacing between the two rows of seedling holes in the hole tray, and the hole tray moves to the seedling taking station under the drive of the chain driving mechanism; the seedling taking assembly 4 is used to take the seedlings on the seedling taking station and send them into the seedling dropping assembly 5 located below the seedling taking assembly 4; an arc baffle 23 is arranged at one end of the seedling delivery chassis 2 near the seedling taking station. After the first row of seedlings on the hole tray is taken out, the first row of hole trays moves with the circulating horizontal shaft 34 and bends into the cavity at the lower part of the seedling delivery chassis 2 under the obstruction of the arc baffle 23.

[0024] The utility model is provided with a chain drive mechanism and a circulating horizontal axis 34, which can drive the circulating horizontal axis 34 to intermittently move. Since the spacing between the circulating horizontal axis 34 matches the hole holes on the plug tray, a row of plug trays at one end of the plug tray can be clamped between the circulating horizontal axis 34, and then the circulating horizontal axis 34 stably drives the plug tray loaded with seedlings to move to the seedling removal station. At this time, the chain drive mechanism stops, and the seedling removal assembly 4 cooperates to remove the seedlings at the seedling removal station. After the seedlings are removed, the seedlings are sent to the seedling drop assembly 5 for subsequent planting. The circular arc baffle 23 is provided, and each time a row of seedlings on the plug tray is completely removed, the chain drive mechanism 3 can drive the plug tray to move forward another row through the circulating horizontal axis 34. Then, under the limiting action of the circular arc baffle 23, the plug tray is continuously bent and finally flipped 180 degrees and falls into the seedling delivery chassis 2, realizing the recycling of the plug tray. When the circular arc baffle limits the plug tray, the plug tray will not be damaged and the plug tray can be reused.

[0025] Reference Figure 1 As shown, in this embodiment, a plug tray support plate 21 is arranged obliquely on the seedling transport chassis 2, and guide edges 22 are arranged on both sides of the upper end surface of the seedling transport chassis 2. The plug tray support plate 21 is provided, so that when the chain drive mechanism 3 drives a plug tray to transport seedlings, another plug tray full of seedlings can be placed on the plug tray support plate 21 in advance as a standby, thereby improving the overall seedling transport efficiency; the guide edges 22 can facilitate the plug tray to be guided and engaged on the circulating horizontal axis 34, so that the chain drive mechanism 3 can drive the seedling transport action.

[0026] Reference Figure 2 and 3 As shown, in this embodiment, the chain drive mechanism 3 includes a seedling transporting motor 31 arranged on one side of the seedling transporting chassis 2, and the output shaft of the seedling transporting motor 31 is fixedly connected to the driving sprocket shaft 32, and the driving sprocket shaft 32 cooperates with the driven sprocket shaft arranged in the inner cavity of the output housing to be connected to the transmission chain 33. The circulating horizontal axis 34 is arranged at equal intervals between the two transmission chains 33, and the output housing is symmetrically arranged with a photoelectric radiation switch 35 for detecting whether the seedlings have reached the seedling removal station. The photoelectric radiation switch 35 is set, and it can detect when the transmission chain 33 drives the seedlings in the first row on the hole tray. At this time, the rotation of the seedling transporting motor 31 is controlled according to the program set by the system, so that the hole tray advances a specified distance (determined by the distance between two adjacent rows of holes on the hole tray). The number of advances (determined by the number of rows of holes on the hole tray) and the interval start time and other parameters are preset in advance through the program.

[0027] In this embodiment, the seedling removal assembly 4 includes two clamping frames 46 that can move synchronously toward or away from each other along the X-axis. The clamping frames 46 are equipped with pneumatic grippers 47 for gripping the stems of the seedlings. The two clamping frames 46 are symmetrical and can move synchronously up and down along the Y-axis. In actual use, the inner side of the pneumatic grippers 47 is made of a flexible elastic material, which can stably grip the seedlings without damaging them.

[0028] In this embodiment, the seedling pluck component 4 also includes a mounting base 41 fixedly connected to the mounting bracket 1, and the mounting base 41 is connected to an X-axis movable frame 44 through a seedling pluck motor 42 and a synchronous belt transmission mechanism, and an X-axis guide rail 45 is provided on the mounting base 41 and is slidably connected to the lower part of the X-axis movable frame 44.

[0029] Reference Figure 3 and 4 As shown, in this embodiment, the X-axis movable frame 44 is slidably connected to the Y-axis slider 48, the clamping frame 46 is fixedly arranged on the Y-axis slider 48, the X-axis movable frame 44 is rotatably connected to the drive screw 411 threadedly connected to the Y-axis slider 48, and the X-axis movable frame 44 is fixedly connected to the lift motor 49. The lift motor 49 is transmission-connected to one end of the drive screw 411 via a belt drive mechanism 410. After the seedlings arrive at the seedling removal station, the seedling removal motor 42 can drive the X-axis movable frame 44 along the X-axis direction to synchronously approach the root of the seedling via the synchronous belt mechanism 43. At this time, the clamping claw is activated to stably clamp the seedling stem. The Y-axis slider 48 and the clamping frame 46 are driven by the lift motor 49 to slide along the Y-axis direction, thereby pulling out the seedlings in the holes on the hole tray. At this time, the X-axis movable frame 44 is reset to the initial position, and the pneumatic clamping claw 47 releases the seedling, causing the seedling to fall into the seedling drop assembly 5. In actual application, by setting the X-axis moving frame to the initial position (zero position), the pneumatic clamp is located directly above the seedling dropping assembly. Therefore, after each seedling is taken, it is only necessary to ensure that the X-axis moving frame returns to the initial position to perform the seedling dropping operation, so that the entire seedling taking assembly does not need to move in three directions to complete the seedling taking and dropping operation.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seedling delivery and retrieval mechanism for a transplanter, comprising a mounting bracket, a seedling delivery chassis arranged on the mounting bracket, and a seedling retrieval assembly located on one side of the seedling delivery chassis, characterized in that: The inner cavity of the seedling transport chassis is arranged with a chain drive mechanism, and the chain drive mechanism drives the circulating horizontal axis arranged thereon to move back and forth along the chain direction, and the spacing between the two circulating horizontal axes matches the spacing between the two rows of seedling holes in the hole tray, and the hole tray moves to the seedling retrieval station under the drive of the chain drive mechanism; the seedling retrieval assembly is used to retrieval the seedlings on the seedling retrieval station and send them into the seedling dropping assembly located below the seedling retrieval assembly; an arc baffle is arranged at one end of the seedling transport chassis close to the seedling retrieval station. After the first row of seedlings on the hole tray is taken out, the first row of hole trays moves with the circulating horizontal axis, and bends into the cavity at the lower part of the seedling transport chassis when blocked by the arc baffle.

2. The seedling delivery and retrieval mechanism of a transplanter according to claim 1, characterized in that: A plug tray supporting plate is obliquely arranged on the seedling transport chassis, and guiding edges are arranged on both side edges of the upper end surface of the seedling transport chassis.

3. The seedling delivery and retrieval mechanism of a transplanter according to claim 1 or 2, characterized in that: The chain drive mechanism includes a seedling transporting motor arranged on one side of the seedling transporting chassis, the output shaft of the seedling transporting motor is fixedly connected to a driving sprocket shaft, the driving sprocket shaft cooperates with a driven sprocket shaft arranged in the inner cavity of the output shell to be connected to a transmission chain, the circulating horizontal axis is arranged at equal intervals between the two transmission chains, and the output shell is symmetrically arranged with photoelectric beam switches for detecting whether the seedlings have reached the seedling picking station.

4. The seedling delivery and retrieval mechanism of a transplanter according to claim 3, characterized in that: The seedling retrieval assembly includes two clamping frames that can move synchronously toward or away from each other along the X-axis direction. The clamping frames are provided with pneumatic clamps for clamping the seedling stems. The two clamping frames are symmetrical and can move synchronously up and down along the Y-axis direction.

5. The seedling delivery and retrieval mechanism of a transplanter according to claim 4, characterized in that: The seedling pluck assembly also includes a mounting base fixedly connected to the mounting bracket, and the mounting base is connected to an X-axis movable frame through a seedling pluck motor and a synchronous belt transmission mechanism, and an X-axis guide rail is provided on the mounting base that is slidably connected to the lower part of the X-axis movable frame.

6. The seedling delivery and retrieval mechanism of a transplanter according to claim 5, characterized in that: The X-axis movable frame is slidably connected to a Y-axis slider, the clamping frame is fixedly arranged on the Y-axis slider, the X-axis movable frame is rotatably connected to a driving screw threadedly connected to the Y-axis slider, the X-axis movable frame is fixedly connected to a lifting motor, and the lifting motor is transmission-connected to one end of the driving screw through a belt drive mechanism.

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