Seedling conveying device

Abstract

The utility model provides a seedling conveying device, and belongs to the technical field of agriculture. The problems that a traditional conveying device is complex in structure, seedlings are prone to being damaged, and maintenance is difficult are solved. A seedling conveying device comprises a material disc feeding mechanism, a seedling grabbing mechanism, a rotating wheel sowing mechanism and an outer frame, the material disc feeding part is a stepping feeding mechanism and is mainly used for intermittent feeding and positioning of seedling discs and guaranteeing that seedling grabbing claws can accurately grab seedlings, and the material disc feeding part is formed by combining a cam mechanism, a lever mechanism and a crank rocker mechanism. The tray feeding mechanism is mainly provided with intermittent power for conveying trays through a grooved wheel mechanism, and on one hand, the stepping feeding action of the trays is carried out; on one hand, the clamping jaw mechanism moves between the material disc and the discharging opening. The device has the advantages of simple and reliable mechanism, stable movement, accurate pushing distance and timely response.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural technology, in particular to a seedling conveying device. Background Art

[0002] With the development of factory-based seedling technology, the research and development and application of facilities and equipment such as precision sowing, germination and seedling greenhouses, and transportation have developed rapidly; international and domestic mechanical equipment products such as soil tillage machinery and plant protection machinery for open-field operations have matured and can be shared with other economic crop production to basically meet production needs; plug seedling planting and leafy vegetable harvesting are the main research contents of leafy vegetable production machinery and equipment. In most leafy vegetable production areas in my country, the technology and equipment of factory-based seedling cultivation have become mature, but the planting of vegetable seedlings is still mainly manual, with high labor intensity and low production efficiency; there is an urgent need for harvesting machinery and equipment for leafy vegetables such as green vegetables and cabbage, with China as the main production area.

[0003] At present, for seedling planting in trays, the traditional mechanical seedling conveying device is prone to inaccurate seedling grabbing by the seedling claws, which may damage the seedlings. When conveying seedlings, inaccurate pushing distance and untimely response may also easily cause the seedling grabbing claws to damage the seedlings when grabbing them, resulting in unnecessary economic losses. In addition, the traditional conveying mechanism has a complex structure and is prone to failure after a period of operation. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the utility model provides a seedling conveying device, which has the advantages of simple and reliable structure, smooth movement, accurate pushing distance and timely response, and solves the problem that the traditional mechanical seedling conveying device is prone to inaccurate seedling grabbing and damaging the seedlings. When conveying seedlings, inaccurate pushing distance and untimely response may also easily cause the seedling grabbing claws to damage the seedlings when grabbing them, causing unnecessary economic losses. In addition, the traditional conveying mechanism has a complex structure and is prone to failure after a period of operation.

[0006] (II) Technical solution

[0007] In order to achieve the purpose of the above-mentioned mechanism being simple and reliable, moving smoothly, pushing distance being accurate, and responding promptly, the utility model provides the following technical solutions: a seedling conveying device, comprising a tray feeding mechanism, a seedling grabbing mechanism, a rotary sowing mechanism, and an outer frame, wherein the tail of the outer frame is provided with two vertically upward aluminum profiles three, and the two aluminum profiles three are respectively fixedly connected with aluminum profile one and aluminum profile two, and there is a distance between the aluminum profile one and the aluminum profile two, and a tray rack two is provided on the aluminum profile one, and a tray rack one is provided on the aluminum profile two, and a motor is provided at the bottom of the aluminum profile one and the aluminum profile two, and a gear one is provided on the motor shaft of the motor, and a gear two is provided at the bottom of the aluminum profile two, and a gear three is provided above the aluminum profile two, and the gear one, gear two, and gear three cooperate with each other, A cam transmission shaft is provided on the gear, and a cam is provided on the end of the cam transmission shaft; a transverse slide rail 1 is provided at the end of the tray frame 2 away from the aluminum profile 3; a slider is mounted on the slide rail 1, and a slide rail 2 is provided on the slider; a feeding plate is mounted on the slide rail 2; a seedling tray claw is provided above the feeding plate, and a material tray is provided above the seedling tray claw, and the seedling tray claw penetrates into the gap at the bottom of the material tray; a bridge plate is provided on the tray frame 2, and the outer contour of the cam is composed of arc 1, arc 2 and arc 3, and the bridge plate includes a short rod and a long rod. When the device is in the initial state, the end of the short rod abuts against the junction of arc 1 and arc 3, and the end of the long rod abuts against the bottom of the feeding plate; a crank connecting rod is provided on the cam, and the other end of the crank connecting rod is rotatably assembled on the slider.

[0008] Preferably, the central angle of the arc 1 is 180°.

[0009] Preferably, a bearing seat is provided above the second aluminum profile, and a cam drive shaft is assembled in the bearing seat.

[0010] Preferably, the feeding plate includes a lower plate, the lower plate is vertically arranged at the bottom of the feeding plate, the lower plate is slidably mounted on the second slide rail, and the bottom of the lower plate contacts the end of the long rod.

[0011] Preferably, the feed tray is composed of two rows of seedling troughs connected to each other, and a towing rod is provided between the two rows of seedling troughs.

[0012] Preferably, the cam is provided with a second mounting hole and a first mounting hole, the second mounting hole is arranged in the middle of the cam, the second mounting hole is eccentrically arranged, the cam drive shaft is fixedly assembled in the first mounting hole, and the crank connecting rod is rotatably assembled in the second mounting hole.

[0013] Preferably, an assembly shaft is provided at the connection between the short rod and the long rod.

[0014] Preferably, the side of the tray rack one is provided with side panel one and side panel two, and the side panel one and side panel two are fixedly mounted on the aluminum profile two. The tray rack one is provided with a through hole, and a cam drive shaft is passed through the through hole. The tray rack one is provided with a fixed shaft.

[0015] Preferably, a side panel three is provided on the side of the tray rack two, and the side panel three is fixedly mounted on the aluminum profile one. An assembly hole one and an assembly hole two are provided on the tray rack two, and an assembly shaft is rotatably mounted in the assembly hole one, and a fixed shaft is fixedly mounted in the assembly hole two.

[0016] Preferably, the stroke of the crank connecting rod is at least one seedling groove.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a seedling conveying device, which has the following beneficial effects:

[0019] The seedling conveying device has a tray feeding mechanism which is a stepping feeding mechanism, which is mainly used for intermittent feeding and positioning of the tray to ensure that the seedling claw can accurately grasp the seedlings. The part is composed of a cam mechanism, a lever mechanism, and a crank rocker mechanism. The seedling tray claw is installed on a feed plate that can move up and down, and the feed plate is installed on a slider that can move forward and backward. The short rod end of the lever mechanism contacts the outer contour of the cam, and its contact point is the intersection of arc one and arc three, and the long rod end contacts the lower plane of the lower plate. The lever mechanism is mainly used to expand the small radius difference of the cam into a longer distance displacement of the seedling tray claw. The cam mechanism and the lever mechanism mainly control the up and down movement of the seedling tray claw. The crank rocker controls the forward and backward movement of the seedling tray claw. The crank is 90° with the end point of the cam rotation, and the center angle of arc one is 180°. The power is driven by the motor to rotate gear one, gear two and gear three, and is transmitted to the cam transmission shaft fixedly connected to gear three, driving the cam to rotate.

[0020] In the initial state, the end of the short rod contacts the intersection of arc 1 and arc 3 on the cam, and the short rod tilts the long rod around the assembly axis, so that the end of the long rod pushes up the feed plate, further making the seedling tray claw at the top; at this time, the crank connecting rod is at the rear, and the seedling tray claw is at the rear. When the cam rotates counterclockwise, the radius of the arc contacted by the cam and the short rod remains unchanged, the height of the seedling tray claw remains unchanged, and its claw contacts the tray. The crank mechanism pushes the crank connecting rod forward, so that the slider moves forward, driving the seedling tray claw on the slider to be pushed out in advance, and the tray located above the seedling tray claw also moves forward. This is the working forward stage. When the cam rotates 180°, the tray is pushed to the seedling removal point, and the seedling tray claw is about to move backward. The short rod contacts the near point on arc 2 on the cam, and the seedling tray claw falls back, causing the seedling tray claw to detach from the tray from the bottom, preventing the withdrawal of the seedling tray claw from pulling the tray back, resulting in inaccurate positioning of the tray. This is the fast retraction stage. Continue to rotate 180°. During this process, the radius of the cam gradually increases, pressing the short rod downward, causing the end of the long rod to lift upward, further driving the seedling tray claw to gradually insert into a slot behind the tray, and the slider gradually moves backward. This cycle repeats, and the tray is conveyed forward in steps of a seedling slot, so that each seedling slot can be accurately moved under the seedling claw. This achieves the effect of simple and reliable mechanism, stable movement, accurate pushing distance, and timely response. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a seedling conveying device adapted to a machine of the utility model;

[0022] Figure 2 This is a side view of a seedling conveying device adapted to a machine of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of a seedling conveying device of the utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of a seedling conveying device of the utility model;

[0025] Figure 5 This is a side view of the internal structure of a seedling conveying device of the utility model;

[0026] Figure 6 This is a front view of a cam of a seedling conveying device of the utility model;

[0027] Figure 7 This is a schematic diagram of the bridge plate structure of a seedling conveying device of the utility model;

[0028] Figure 8 This is a structural schematic diagram of a tray frame of a seedling conveying device of the utility model;

[0029] Fig. 9This is a structural schematic diagram of a tray frame of a seedling conveying device of the utility model.

[0030] In the figure: 100 tray feeding mechanism, 101 tray, 102 drag rod, 103 feeding plate, 104 seedling tray claw, 105 motor, 106 gear 1, 107 gear 2, 108 gear 3, 109 aluminum profile 1, 110 tray frame 1, 1101 side plate 1, 1102 side plate 2, 1103 through hole, 1104 fixed shaft, 111 tray frame 2, 1111 side plate 3, 1112 assembly hole 1, 1113 assembly hole 2, 112 bearing seat, 1 13 cam, 1131 arc one, 1132 arc two, 1133 arc three, 1134 mounting hole one, 1135 mounting hole two, 114 bridge plate, 1141 assembly shaft, 1142 short rod, 1143 long rod, 115 slider, 116 slide rail one, 117 slide rail two, 118 crank connecting rod, 119 aluminum profile two, 120 cam transmission shaft, 200 seedling grasping mechanism, 300 rotary sowing mechanism, 400 outer frame, 401 aluminum profile three. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-9 A seedling conveying device includes a feed tray 101 feeding mechanism 100. The feed tray 101 feeding mechanism 100 is mainly provided with intermittent power for conveying the feed tray 101 by a groove wheel mechanism. On the one hand, it performs a step feeding action of the feed tray 101; on the other hand, it performs a seedling grabbing mechanism 200 to move between the feed tray 101 and the feed discharge port.

[0033] The seedling grabbing mechanism 200 is mainly composed of a seedling grabbing claw, a seedling claw lifting part, and an inclined chute feeding part. The seedling grabbing claw is used to grab the seedlings, the seedling claw lifting part is used to lift the seedling grabbing claw, and the inclined chute feeding part is used to guide the seedlings to slide into the seedling cup of the rotary seeding system.

[0034] The rotary sowing mechanism 300 mainly consists of a rotating holding mechanism and a seedling cup. The rotating holding mechanism is used to rotate the seedling cup and ensure that the axis of the seedling cup is always perpendicular to the ground. The seedling cup can complete the two functions of digging holes and placing seedlings. The seedling grabbing system mainly takes out the seedlings in the seedling tray.

[0035] The outer frame 400 is used to support various mechanisms and form a complete working system.

[0036] The tail of the outer frame 400 is provided with two vertically upward aluminum profiles 3 401, and the aluminum profiles 3 401 provide support for the installation of aluminum profiles 1 109 and aluminum profiles 2 119. There is a distance between aluminum profiles 1 109 and aluminum profiles 2 119, and the distance between aluminum profiles 1 109 and aluminum profiles 2 119 provides necessary assembly space for tray rack 1 110 and tray rack 2 111 as well as the parts installed therebetween. Aluminum profiles 1 109 and aluminum profiles 2 119 are respectively fixedly connected to the two aluminum profiles 3 401, and aluminum profiles 1 109 and aluminum profiles 2 119 provide support for the installation of parts on the feeding mechanism 100 of the material tray 101. Aluminum profiles 1 109 are provided with tray rack 2 111, and aluminum profiles 2 119 are provided with tray rack 1 110. Tray rack 1 110 and tray rack 2 111 allow other parts to be arranged on the two to provide stable support. A motor 105 is provided at the bottom of the aluminum profile 109 and the aluminum profile 2 119. The motor 105 provides stable power support for the feeding mechanism 100 of the feeding tray 101, so that the cam 113 can rotate stably, thereby feeding the tray 101. A gear 106 is provided on the motor 105 shaft of the motor 105, a gear 2 107 is provided at the bottom of the aluminum profile 2 119, and a gear 3 108 is provided above the aluminum profile 2 119. The gear 106, the gear 2 107 and the gear 3 108 cooperate with each other to stably transmit the power of the motor 105 to the cam transmission shaft 120 fixedly connected to the gear 3 108, and finally drive the cam 113 to rotate, thereby completing a series of feeding work. A cam transmission shaft 120 is provided on the gear, and the cam transmission shaft 120 transmits the power of the gear 3 108 to the cam 113, allowing the motor 105 to drive the cam 113 to rotate.

[0037] The end of the cam transmission shaft 120 is provided with a cam 113, and the cam 113 has multiple functions. First, in the crank slider mechanism, since the cam 113 is rotatably connected with a crank connecting rod 118, and the mounting hole 1134 is eccentrically arranged on the cam 113, the cam 113, the crank connecting rod 118, the slider 115 and the slide rail 116 form a crank slider mechanism, so that when the cam 113 rotates, it drives the slider 115 to move forward and backward on the slide rail 116, further drives the slide rail 2 117 and the feeding plate 103 assembled on the slider 115 to move forward and backward, and finally drives the material tray 101 to move forward and backward. Secondly, in the lever mechanism, the outer contour of the cam 113 is composed of arc 1 1131, arc 2 1132 and arc 3 1133. In the initial state, the end of the short rod 1142 contacts the intersection of arc 1 1131 and arc 3 1133 on the cam 113, and the short rod 1142 tilts the long rod 1143 around the assembly shaft 1141, so that the end of the long rod 1143 pushes the feeding plate 103 upward, further making the seedling tray claw 104 located at the top. When the cam 113 rotates counterclockwise, the radius of the arc contacted by the cam 113 and the short rod 1142 remains unchanged, the height of the seedling tray claw 104 remains unchanged, and its claw contacts the tray 101. When the cam 113 rotates 180°, the tray 101 is pushed to the seedling removal position, the seedling tray claw 104 is about to move backward, the short rod 1142 contacts the near point on the arc 2 1132 on the cam 113, and the seedling tray claw 104 falls back, and the seedling tray claw 104 is separated from the tray 101 from the bottom, preventing the withdrawal of the seedling tray claw 104 from pulling the tray 101 back, resulting in inaccurate positioning of the tray 101. This is the fast rewind stage. Continue to rotate 180°. During this process, the radius of the cam 113 gradually increases, pressing the short rod 1142 downward, so that the end of the long rod 1143 is lifted upward, further driving the seedling tray claw 104 to gradually insert into the slot behind the tray 101, and the slider 115 also gradually moves backward, and the cycle repeats. The crank slider 115 mechanism and the lever mechanism cooperate with each other, so that the seedling tray claw 104 pushes the tray 101 forward in an intermittent manner at the bottom of the tray 101.

[0038] A transverse slide rail 116 is provided at one end of the tray rack 111 away from the aluminum profile 401 , and the slide rail 116 provides positioning and guiding functions for the sliding of the slider 115 .

[0039] A slider 115 is installed on the slide rail 116, and the slider 115 can drive the feed plate 103 thereon to move back and forth under the action of the cam 113 and the crank connecting rod 118. In addition, the slider 115 also provides an installation basis for the slide rail 2 117 thereon, further allowing the feed plate 103 to move up and down under the action of the cam 113 and the bridge plate 114.

[0040] The slider 115 is provided with a second slide rail 117, which provides positioning and guiding functions for the up and down movement of the feed plate 103. The feed plate 103 is mounted on the second slide rail 117, and the feed plate 103 is used to support the seedling tray claw 104. The seedling tray claw 104 is arranged above the feed plate 103, and the seedling tray claw 104 penetrates into the gap at the bottom of the material tray 101. The seedling tray claw 104 is used to insert into the gap between the seedling grooves when the material tray 101 is pushed forward, thereby pushing the material tray 101 forward. The material tray 101 is arranged above the seedling tray claw 104, and the material tray 101 is used to be loaded with seedlings. The tray frame 111 is provided with a bridge plate 114, which is a lever in the structure. The cam 113 squeezes and releases the end of the short rod 1142, thereby realizing the up and down movement of the end of the long rod 1143 on the feed plate 103.

[0041] The outer contour of the cam 113 is composed of arc 1131, arc 2 1132 and arc 3 1133, and the three arcs represent different functions. Arc 1 1131 ensures that the height of the seedling tray claw 104 remains unchanged while allowing the slider 115 to move forward. Arc 2 1132 allows the end of the short rod 1142 to fall into the near center point, so that the short rod 1142 is lifted upward, and the long rod 1143 moves downward, further causing the surface plate claw to move downward. Arc 3 1133 allows the short rod 1142 to gradually move downward, and the long rod 1143 is lifted upward, further causing the seedling tray claw 104 to move upward and insert into the gap of the seedling groove.

[0042] The central angle of the arc 1131 is 180°. During the period when the arc 1131 and the short rod 1142 are in contact, the height of the seedling tray claw 104 remains unchanged, but the crank connecting rod 118 drives the tray 101 to slide, further driving the tray 101 to move forward by the distance of a seedling slot.

[0043] A bearing seat 112 is arranged above the second aluminum profile 119 , and a cam drive shaft 120 is assembled in the bearing seat 112 . The bearing seat 112 is used to support the cam drive shaft 120 .

[0044] The feed plate 103 includes a lower plate, which is vertically arranged at the bottom of the feed plate 103, and the lower plate is slidably mounted on the second slide rail 117, and the bottom of the lower plate contacts the end of the long rod 1143. The lower plate is slidably mounted on the second slide rail 117, so that the feed plate 103 can move up and down along the second slide rail 117. The bottom of the lower plate contacts the long rod 1143, and the feed plate 103 can be lifted or lowered by the up and down movement of the long rod 1143.

[0045] The feed tray 101 is composed of two rows of interconnected seedling grooves, and a drag rod 102 is arranged between the two rows of seedling grooves. The seedling grooves are used to place seedlings, and the drag rod 102 arranged in the middle prevents the feed tray 101 from falling and provides guidance for the forward movement of the feed tray 101. The gap at the bottom of the seedling groove allows the seedling tray claw 104 to be inserted, thereby driving the entire feed tray 101 to move.

[0046] The cam 113 is provided with a second mounting hole 1135 and a first mounting hole 1134. The second mounting hole 1135 is provided in the middle of the cam 113. The second mounting hole 1135 is eccentrically provided. The cam transmission shaft 120 is fixedly provided in the first mounting hole 1134. The crank connecting rod 118 is rotatably provided in the second mounting hole 1135. The first mounting hole 1134 is used to install the cam transmission shaft 120 to realize the rotation of the cam 113. The crank connecting rod 118 is rotatably provided in the second mounting hole 1135. The eccentricity of the second mounting hole 1135 and the second mounting hole 1135 form a crank slider mechanism as a whole.

[0047] The connection between the short rod 1142 and the long rod 1143 is provided with an assembly shaft 1141. The assembly shaft 1141 is the center of the lever, so that the short rod 1142 and the long rod 1143 can rotate around the assembly shaft 1141 driven by the cam 113, thereby completing a series of actions.

[0048] The side of the tray rack 1 110 is provided with a side plate 1 101 and a side plate 2 1102, which are fixedly mounted on the aluminum profile 2 119. The tray rack 1 110 is provided with a through hole 1103, through which a cam drive shaft 120 is passed, and a fixed shaft 1104 is provided on the tray rack 1 110. The side plate 1 101 and the side plate 2 1102 are used to fix the tray rack 1 110 on the aluminum profile 2 119, thereby improving the stability of the structure. The through hole 1103 allows the cam drive shaft 120 to pass through. The fixed shaft 1104 is fixedly connected to the assembly hole 2 1113, connecting the tray rack 1 110 and the tray rack 2 111 together, making the entire device more stable and firm.

[0049] The side of the second tray frame 111 is provided with a third side plate 1111, which is fixedly mounted on the first aluminum profile 109. The second tray frame 111 is provided with a first assembly hole 1112 and a second assembly hole 1113. The first assembly hole 1112 is rotatably mounted with an assembly shaft 1141, and the second assembly hole 1113 is fixedly mounted with a fixed shaft 1104. The third side plate 1111 fixes the second tray frame 111 to the first aluminum profile 109 to improve the stability of the structure. The first assembly hole 1112 is rotatably mounted with an assembly shaft 1141, so that the short rod 1142 and the long rod 1143 can rotate around the assembly shaft 1141.

[0050] The stroke of the crank connecting rod 118 is at least one seedling slot. In this patent, the stroke of the crank connecting rod 118 is one seedling slot. When the stroke is required to be two seedling slots or more seedling slots, the eccentric distance of the mounting hole 1134 can be adjusted to complete the adjustment of the stroke.

[0051] Working principle: The feeding mechanism 100 of the tray 101 is a stepping feeding mechanism, which is mainly used for intermittent feeding and positioning of the tray 101 to ensure that the seedling claw can accurately grasp the seedlings. This part is composed of a cam 113 mechanism, a lever mechanism, and a crank rocker mechanism. The seedling tray claw 104 is installed on a feed plate 103 that can move up and down, and the feed plate 103 is installed on a slider 115 that can move forward and backward. The end of the short rod 1142 of the lever mechanism contacts the outer contour of the cam 113, and its contact point is the intersection of the arc 1131 and the arc 3 1133, and the end of the long rod 1143 contacts the lower plane of the lower plate. The lever mechanism is mainly used to expand the small radius difference of the cam 113 into a longer distance displacement of the seedling tray claw 104. The cam 113 mechanism and the lever mechanism mainly control the up and down movement of the seedling tray claw 104. The crank rocker machine controls the forward and backward movement of the seedling tray claw 104. The crank and the end point of the cam 113 are 90 degrees apart, and the central angle of the arc 1131 is 180 degrees. The power is driven by the motor 105 to drive the gear 106, gear 2 107 and gear 3 108 to rotate, and is transmitted to the cam drive shaft 120 fixedly connected to the gear 3 108, driving the cam 113 to rotate.

[0052] In the initial state, the end of the short rod 1142 contacts the intersection of the arc 1 1131 and the arc 3 1133 on the cam 113, and the short rod 1142 tilts the long rod 1143 around the assembly shaft 1141, so that the end of the long rod 1143 pushes the feeding plate 103 upward, and further makes the seedling tray claw 104 located at the top; at this time, the crank connecting rod 118 is at the rear, and the seedling tray claw 104 is at the rear. When the cam 113 rotates counterclockwise, the radius of the arc contacted by the cam 113 and the short rod 1142 remains unchanged, the height of the seedling tray claw 104 remains unchanged, and its claw contacts the material tray 101. The crank mechanism pushes the crank connecting rod 118 forward, so that the slider 115 moves forward, driving the seedling tray claw 104 on the slider 115 to be pushed forward, and the material tray 101 located above the seedling tray claw 104 also moves forward, and this is the working stage. When the cam 113 rotates 180°, the tray 101 is pushed to the seedling removal position, the seedling tray claw 104 is about to move backward, the short rod 1142 contacts the near point on the arc 2 1132 on the cam 113, and the seedling tray claw 104 falls back, and the seedling tray claw 104 is separated from the tray 101 from the bottom, preventing the withdrawal of the seedling tray claw 104 from pulling the tray 101 back, resulting in inaccurate positioning of the tray 101. This is the fast rewind stage. Continue to rotate 180°. During this process, the radius of the cam 113 gradually increases, pressing the short rod 1142 downward, so that the end of the long rod 1143 is lifted upward, further driving the seedling tray claw 104 to gradually insert into the next slot of the tray 101, and the slider 115 also gradually moves backward. The cycle is repeated, and the tray 101 is stepped forward by the distance of a seedling slot, so that each seedling slot can be accurately moved to the bottom of the seedling removal claw.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seedling conveying device, characterized in that: The invention comprises a material tray (101) feeding mechanism (100), a seedling grasping mechanism (200), a rotary sowing mechanism (300) and an outer frame (400), wherein the tail of the outer frame (400) is provided with two vertically upward aluminum profiles (401), and the two aluminum profiles (401) are respectively fixedly connected with an aluminum profile (109) and an aluminum profile (119), and there is a distance between the aluminum profile (109) and the aluminum profile (119), and the aluminum profile (109) is provided with a tray frame (111), and the aluminum profile (119) is provided with a tray frame (110), A motor (105) is disposed at the bottom of the aluminum profile 1 (109) and the aluminum profile 2 (119); a gear 1 (106) is disposed on the motor (105) shaft of the motor (105); a gear 2 (107) is disposed at the bottom of the aluminum profile 2 (119); a gear 3 (108) is disposed above the aluminum profile 2 (119); the gear 1 (106), the gear 2 (107) and the gear 3 (108) cooperate with each other; a cam transmission shaft (120) is disposed on the gear; a cam (113) is disposed at the end of the cam transmission shaft (120); and the tray rack A horizontal slide rail one (116) is arranged at one end of the second (111) away from the aluminum profile three (401), the slide rail one (116) is equipped with a slider (115), the slider (115) is equipped with a slide rail two (117), the slide rail two (117) is equipped with a feeding plate (103), a seedling tray claw (104) is arranged above the feeding plate (103), a material tray (101) is arranged above the seedling tray claw (104), the seedling tray claw (104) is deeply inserted into the gap at the bottom of the material tray (101), a bridge plate (114) is arranged on the tray rack two (111), the convex The outer contour of the wheel (113) is composed of arc 1 (1131), arc 2 (1132) and arc 3 (1133); the bridge plate (114) includes a short rod (1142) and a long rod (1143); when the device is in an initial state, the end of the short rod (1142) abuts against the junction of arc 1 (1131) and arc 3 (1133), and the end of the long rod (1143) abuts against the bottom of the feeding plate (103); a crank connecting rod (118) is provided on the cam (113), and the other end of the crank connecting rod (118) is rotatably assembled on the slider (115).

2. A seedling conveying device according to claim 1, characterized in that: The central angle of the arc 1 (1131) is 180°.

3. A seedling conveying device according to claim 1, characterized in that: A bearing seat (112) is arranged above the second aluminum profile (119), and a cam drive shaft (120) is assembled in the bearing seat (112).

4. A seedling conveying device according to claim 1, characterized in that: The feeding plate (103) includes a lower plate, which is vertically arranged at the bottom of the feeding plate (103). The lower plate is slidably installed on the second slide rail (117), and the bottom of the lower plate contacts the end of the long rod (1143).

5. A seedling conveying device according to claim 1, characterized in that: The feed tray (101) is composed of two rows of seedling troughs connected to each other, and a towing rod (102) is arranged between the two rows of seedling troughs.

6. A seedling conveying device according to claim 1, characterized in that: The cam (113) is provided with a second mounting hole (1135) and a first mounting hole (1134); the second mounting hole (1135) is arranged in the middle of the cam (113); the second mounting hole (1135) is eccentrically arranged; a cam transmission shaft (120) is fixedly mounted in the first mounting hole (1134); and a crank connecting rod (118) is rotatably mounted in the second mounting hole (1135).

7. A seedling conveying device according to claim 6, characterized in that: An assembly shaft (1141) is provided at the connection between the short rod (1142) and the long rod (1143).

8. A seedling conveying device according to claim 1, characterized in that: The side of the tray frame 1 (110) is provided with a side plate 1 (1101) and a side plate 2 (1102), and the side plate 1 (1101) and the side plate 2 (1102) are fixedly mounted on the aluminum profile 2 (119). The tray frame 1 (110) is provided with a through hole (1103), and a cam transmission shaft (120) is passed through the through hole (1103). The tray frame 1 (110) is provided with a fixed shaft (1104).

9. A seedling conveying device according to claim 1, characterized in that: The side of the tray frame 2 (111) is provided with a side panel 3 (1111), and the side panel 3 (1111) is fixedly mounted on the aluminum profile 1 (109). The tray frame 2 (111) is provided with an assembly hole 1 (1112) and an assembly hole 2 (1113), and an assembly shaft (1141) is rotatably mounted in the assembly hole 1 (1112), and a fixed shaft (1104) is fixedly mounted in the assembly hole 2 (1113).

10. A seedling conveying device according to claim 1, characterized in that: The stroke of the crank connecting rod (118) is at least one seedling groove.

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