Hoe-type hole-opening seeding mechanism of film-mulching hill-drop planter

Abstract

The invention discloses a hoe-type hole-opening seeding mechanism of a film-mulching hill planter. The hoe-type hole-opening seeding mechanism comprises a fixed plate; a transmission shaft; a cam; a first hinge arm; duck heads; a second hinge arm; the duck head comprises a duckbilled mounting seat, and a seed guide interface is formed in the upper end of the duckbilled mounting seat; the duckbill comprises two opening and closing blocks, the upper portions of the opening and closing blocks are connected to the two sides of the lower portion of the duckbill mounting base, and tooth parts meshed with each other are arranged between the upper portions of the opening and closing blocks on the two sides, so that the opening and closing blocks on the two sides are in a closed state when the duckbill is static; the seed guide interface is communicated with the seed storage cavity; the hole opening needles are arranged on the lower portion of each opening and closing block, and the hole opening needles on the two sides are combined to form a spine part when the duckbill is closed; the opening and closing rod is fixedly connected to the opening and closing block on one side; the control rod is rotationally connected to the upper part of the fixed plate; and the opening and closing steel wire pull rope is connected between the control rod and the opening and closing rod. Through the linkage design of cam driving, accurate cooperation and efficient integration of three core actions of duck head lifting, hole opening membrane puncturing and opening and duckbill opening and closing seed feeding under a single power source are achieved.

Description

Technical Field

[0001] The invention relates to the field of film-mulching hole-seeding machines, and in particular to a hoe-type hole-opening and sowing mechanism of the film-mulching hole-seeding machine. Background Art

[0002] In the agricultural technology of mulching and hole sowing, it is usually necessary to lay the ground film first to keep warm and retain moisture, and then make holes in the ground film and sow seeds accurately. In the existing technology, the film breaking and sowing actions are often completed step by step by different mechanisms or lack coordination, resulting in low operating efficiency, irregular film hole shape (which can easily cause film tearing and expansion), and large deviation between the sowing position and the film hole position. Artificial film breaking and sowing is even more labor-intensive and inefficient. There is an urgent need for a hole-opening and sowing mechanism that can synchronously and accurately complete the integrated actions of piercing the ground film, opening the film holes, and planting seeds at fixed points, so as to improve the mechanization level, operating efficiency and sowing quality of mulching and hole sowing. Summary of the Invention

[0003] The purpose of the present invention is to provide a hoe-type hole-opening and sowing mechanism for a mulching hole-seeding machine to solve the above problems.

[0004] According to one aspect of the present invention, a hoe-type hole-opening and sowing mechanism of a mulching hole-seeder is provided, comprising: a fixed plate fixedly mounted on the mulching hole-seeder; a transmission shaft rotatably connected to the fixed plate and transmission-connected to the output shaft of the mulching hole-seeder; a cam rotatably arranged on one side of the fixed plate and transmission-connected to the transmission shaft; a first articulated arm, an upper end of which is rotatably connected to the lower side of the fixed plate; a duck head, arranged at the lower end of the first articulated arm; a second articulated arm, an upper end of which is rotatably connected to the cam, and a lower end is hinged to the first articulated arm; wherein the duck head comprises: a duckbill mounting seat, an upper end of which is provided with a seed guide interface; a duckbill, comprising two opening and closing blocks, the upper part of the opening and closing block being rotatably connected to both sides of the lower part of the duckbill mounting seat, and mutually meshing teeth are provided between the upper parts of the opening and closing blocks on both sides. A first reset spring is connected between the mounting seat and the opening and closing block on one side, so that the opening and closing blocks on both sides are in a closed state when stationary; the opposite surfaces of the opening and closing blocks on both sides are respectively provided with arc-shaped grooves, which form a seed storage cavity when closed; the seed guide interface is connected to the seed storage cavity; an acupuncture needle is provided at the lower part of each opening and closing block, and the acupuncture needles on both sides are combined to form a spike when the duck's bill is closed; an opening and closing rod is fixed to the opening and closing block on one side; a control rod is rotatably connected to the upper part of the fixed plate and contacts with the active contour surface of the cam; an opening and closing steel wire rope is connected between the control rod and the opening and closing rod; when the cam rotates under the drive of the transmission shaft, the duck head is driven to move up and down through the linkage cooperation of the first articulated arm and the second articulated arm; at the same time, the duck's bill is driven to open and close through the linkage cooperation of the control rod, the opening and closing steel wire rope and the opening and closing rod.

[0005] In some embodiments, a first transmission sprocket is connected to one side of the transmission shaft, and the first transmission sprocket is located on the right side of the fixed plate; a second transmission sprocket is rotatably provided on the right side of the fixed plate, and the first transmission sprocket and the second transmission sprocket are connected by a chain transmission; the cam is rotatably provided on the left side of the fixed plate, and the cam and the second transmission sprocket are coaxially provided.

[0006] In some embodiments, the first articulated arm includes a first articulated rod, a second articulated rod and a articulated plate, the upper end of the first articulated rod is rotatably connected to the lower part of the fixed plate, the lower end of the second articulated rod is fixed to the duck head, and the lower end of the first articulated rod and the upper end of the second articulated rod are connected through the articulated plate.

[0007] In some embodiments, a guide block is fixedly provided at the lower portion of the fixed plate, and a guide groove for movement of the guide block is provided at the middle portion of the second hinged arm; the lower end of the second hinged arm is hinged to the second hinged rod.

[0008] In some embodiments, a second reset spring is connected between the fixing plate and the duckbill mounting seat.

[0009] In some embodiments, when the duckbill is opened, the seeds in the seed storage cavity fall under the action of gravity; at the same time, the hole-opening needles on both sides open.

[0010] In some embodiments, the rotation of the cam simultaneously drives the duck head to descend to pierce the film, the acupuncture needles to open the film, the duck bill to open for sowing, the duck head to rise and reset, and the duck bill to close.

[0011] Compared with the prior art, the beneficial effects of this application are:

[0012] The present invention uses a cam-driven linkage design to achieve precise coordination and efficient integration of the three core actions of duck head lifting, acupuncture membrane opening and opening, and duck bill opening and closing for seeding under a single power source;

[0013] Its beneficial effects are significant:

[0014] Integrated and efficient movements: As the duck's head descends, the combined hole-opening needles precisely pierce the mulch film. Then, as the duck's bill opens, the hole-opening needles simultaneously move to both sides, expanding the puncture points into regular holes. At the same time, the seeds fall accurately into the holes. The entire process of rupturing the mulch, opening holes, and sowing is completed in a single stroke, significantly improving operational efficiency.

[0015] High-quality film-breaking and hole-opening: The combined hole-opening needle forms a sharp point that is conducive to piercing the film, and the opening action forms regular holes, effectively reducing film tearing and protecting the integrity of the film;

[0016] Precise and reliable seeding: The duckbill opens to drop seeds only after descending in place and when the hole-opening needle is open, ensuring that the seeds accurately fall into the holes formed by breaking the film, avoiding missed seeding or deviation.

[0017] Compact and coordinated structure: The cam, as the core driving element, realizes the precise transmission and synchronous control of complex motions through the articulated arm system, control rod, and opening and closing wire ropes. The structure is reasonable and reliable, and the action is smooth and stable. Overall, it significantly improves the mechanization level and operation quality of film mulching and hill-drop seeding. Brief Description of the Drawings

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 is a left-side structural schematic diagram of the present invention;

[0020] Figure 3 is a right-side structural schematic diagram of the present invention;

[0021] Figure 4 is a three-dimensional structural schematic diagram of the duck head of the present invention;

[0022] Figure 5 is a three-dimensional structural schematic diagram of the duckbill of the present invention;

[0023] Figure 6 is a connection structural schematic diagram of the opening and closing rod and the opening and closing block of the present invention. Detailed Description of the Invention

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Reference Figures 1 to 6, the present application provides a hoe-type hole-opening and sowing mechanism for a film-covered dibbler, comprising: a fixing plate 1 fixedly installed on the film-covered dibbler; a transmission shaft 11 rotatably connected to the fixing plate 1 and drivingly connected to the output shaft of the film-covered dibbler; a cam 12 rotatably arranged on one side of the fixing plate 1 and drivingly connected to the transmission shaft 11; a first articulated arm 13, the upper end of which is rotatably connected to the lower side of the fixing plate 1; a duck head 2 arranged at the lower end of the first articulated arm 13; a second articulated arm 14, the upper end of which is rotatably connected to the cam 12 and the lower end of which is articulated to the first articulated arm 13; wherein, the duck head 2 includes: a duck bill mounting seat 21, with a seed guiding interface 22 arranged at the upper end thereof; a duck bill 23, including two opening and closing blocks 231, the upper parts of the opening and closing blocks 231 are rotatably connected to both sides of the lower part of the duck bill mounting seat 21, and meshing teeth 232 are arranged between the upper parts of the two opening and closing blocks 231 on both sides. A first return spring is connected between the duck bill mounting seat 21 and one opening and closing block 231, so that the two opening and closing blocks 231 are in a closed state when at rest; arc-shaped grooves 234 are respectively arranged on the opposite surfaces of the two opening and closing blocks 231, and a seed storage cavity 235 is formed when closed; the seed guiding interface 22 is communicated with the seed storage cavity 235; a hole-opening needle 24 is arranged at the lower part of each opening and closing block 231, and the hole-opening needles 24 on both sides form a pointed part 241 when the duck bill 23 is closed; an opening and closing rod 25 is fixedly connected to one opening and closing block 231; a control rod 15 is rotatably connected to the upper part of the fixing plate 1 and contacts the active contour surface of the cam 12; an opening and closing steel wire rope (not shown in the figure) is connected between the control rod 15 and the opening and closing rod 25; when the cam 12 rotates driven by the transmission shaft 11, the duck head 2 is driven to move up and down through the linkage cooperation of the first articulated arm 13 and the second articulated arm 14; meanwhile, the opening and closing of the duck bill 23 is driven through the linkage cooperation of the control rod 15, the opening and closing steel wire rope and the opening and closing rod 25.

[0026] In this embodiment, the film-covered dibbler has an output shaft, and the transmission shaft 11 is driven to rotate through a gearbox; the film-covered dibbler has a seed bin, and the seed bin will deliver a certain amount of seeds to the seed guiding interface 22 at regular intervals.

[0027] The shape of the hole-opening needle 24 can be changed according to actual needs; in this embodiment, the hole-opening needle 24 is in the shape of a thin needle, which is suitable for opening holes in paddy fields to reduce muddy adhesion; for dry fields, the hole-opening needle 24 is in the shape of a wide needle.

[0028] A first return spring is connected between the duck bill mounting seat 21 and one opening and closing block 231. Specifically, a first return spring is connected between the left rear part of the duck bill mounting seat 21 and the opening and closing block 231 on the right side, so that the two opening and closing blocks 231 are in a closed state under the structure of the teeth 232 when at rest.

[0029] In some embodiments, a first transmission sprocket 16 is connected to one side of the transmission shaft 11, and the first transmission sprocket 16 is located on the right side of the fixed plate 1; a second transmission sprocket 17 is rotatably provided on the right side of the fixed plate 1, and the first transmission sprocket 16 and the second transmission sprocket 17 are connected by a chain (not shown); the cam 12 is rotatably provided on the left side of the fixed plate 1, and the cam 12 and the second transmission sprocket 17 are coaxially arranged.

[0030] In some embodiments, the first articulated arm 13 includes a first articulated rod 131, a second articulated rod 132 and a articulated plate 133, the upper end of the first articulated rod 131 is rotatably connected to the lower part of the fixed plate 1, the lower end of the second articulated rod 132 is fixed to the duck head 2, and the lower end of the first articulated rod 131 and the upper end of the second articulated rod 132 are connected through the articulated plate 133.

[0031] In some embodiments, a guide block 18 is fixed to the lower portion of the fixed plate 1 , and a guide groove 141 for the guide block 18 to move is provided in the middle portion of the second hinged arm 14 ; the lower end of the second hinged arm 14 is hinged to the second hinged rod 132 .

[0032] The transmission shaft 11 drives the cam 12 to rotate synchronously through the first transmission sprocket 16, the chain and the second transmission sprocket 17. The lifting section of the outer contour of the cam 12 pushes the second articulated arm 14 to swing around the fixed plate 1. Through the sliding cooperation between the guide groove 141 and the guide block 18, the lower end of the second articulated arm 14 pulls the second articulated rod 132 to move downward; at the same time, the first articulated rod 131 rotates with the hinge point of the fixed plate 1 as the axis, driving the duck head 2 to descend vertically.

[0033] In some embodiments, a second reset spring 19 is connected between the fixing plate 1 and the duckbill mounting seat 21. The addition of the second reset spring 19 makes the raising and lowering of the duck head 2 more stable and with less impact, effectively extending the mechanical life and reducing noise during high-speed operation.

[0034] In some embodiments, when the duckbill 23 is opened, the seeds in the seed storage cavity 235 fall under the action of gravity; at the same time, the hole-opening needles 24 on both sides open.

[0035] In some embodiments, the rotation of the cam 12 simultaneously drives the duck head 2 to descend to pierce the film, the acupuncture needle 24 to open the film, the duck bill 23 to open for sowing, the duck head 2 to rise and reset, and the duck bill 23 to close.

[0036] Sowing action phase:

[0037] When the duck head 2 descends to the lowest position (corresponding to the maximum lift point of the cam 12), the pointed part 241 of the hole-opening needle 24 pierces the plastic film. At this time, the high point of the cam 12 presses the control rod 15 to rotate around the fulcrum on the fixed plate 1, pulls the opening and closing steel wire rope to drive the opening and closing rod 25, and forces one side of the opening and closing block 231 to rotate around the rotating shaft of the duck bill mounting seat 21; due to the meshing teeth 232 on the upper part of the opening and closing blocks 231 meshing with each other, the other side of the opening and closing block 231 rotates synchronously in the opposite direction, realizing the symmetrical opening of the duck bill 23. The seeds in the seed storage cavity 235 fall into the soil under the film under the action of gravity. At the same time, the two side hole-opening needles 24 expand obliquely outwards, expanding the puncture hole into a regular round hole (to prevent the film from tearing).

[0038] Reset stage:

[0039] After the cam 12 enters the return stroke section, the second reset tension spring 19 releases its elastic force, pulls the duck bill mounting seat 21 upwards, and the duck head 2 rises as a whole; at the same time, the control rod 15 disengages from the contour of the cam 12, and the opening and closing steel wire rope becomes slack. The duck bill 23 closes under the action of the first reset tension spring, preparing for the next seed supply of the seed guiding interface 22.

[0040] Through the linkage design driven by the cam 12, the present invention realizes the precise coordination and efficient integration of three core actions: the lifting of the duck head 2, the film piercing and opening of the hole-opening needle 24, and the opening and closing of the duck bill 23 for seed dropping under a single power source;

[0041] Its beneficial effects are remarkable:

[0042] Action integration and high efficiency: During the descent of the duck head 2, the combined hole-opening needle 24 precisely pierces the plastic film. Immediately afterwards, the duck bill 23 opens, and the hole-opening needle 24 moves synchronously to both sides to expand the puncture point into a regular hole. At the same time, the seeds accurately fall into the hole, completing the whole process of film breaking, hole opening, and sowing in a single stroke, greatly improving the operation efficiency;

[0043] High quality of film breaking and hole opening: The combined hole-opening needle 24 forms a sharp part that is conducive to piercing the film, and the opening action forms a regular hole, effectively reducing the tearing of the plastic film and protecting the integrity of the plastic film;

[0044] Precise and reliable sowing: The duck bill 23 only opens to drop seeds after descending in place and when the hole-opening needle 24 opens, ensuring that the seeds accurately fall into the holes formed by film breaking, avoiding missed sowing or deviation;

[0045] Compact and coordinated structure: The cam 12, as the core driving element, realizes the precise transmission and synchronous control of complex movements through the articulated arm system, the control rod 15, and the opening and closing steel wire rope. The structure is reasonable and reliable, and the actions are smooth and stable. Overall, it significantly improves the mechanization level and operation quality of film-covered hole sowing.

[0046] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hoe-type hole-opening and sowing mechanism for a film-covered hill-drop planter, characterized in that, include: Fixed plate, fixedly installed on the mulching hole seeder; A transmission shaft is rotatably connected to the fixed plate and is in transmission connection with the output shaft of the mulching seed drill; A cam is rotatably disposed on one side of the fixed plate and is transmission-connected to the transmission shaft; a first hinged arm, the upper end of which is rotatably connected to the lower side of the fixed plate; a duck head, disposed at the lower end of the first hinged arm; a second hinged arm, the upper end of which is rotatably connected to the cam and the lower end of which is hinged to the first hinged arm; Wherein, the duck head comprises: A duckbill mounting seat, the upper end of which is provided with a seed guide interface; The duckbill comprises two opening and closing blocks, the upper parts of the opening and closing blocks are rotatably connected to the lower sides of the duckbill mounting seat, and mutually meshing teeth are provided between the upper parts of the opening and closing blocks on both sides. A first reset tension spring is connected between the duckbill mounting seat and the opening and closing blocks on one side, so that the opening and closing blocks on both sides are in a closed state when stationary; the opposite surfaces of the opening and closing blocks on both sides are respectively provided with arc-shaped grooves, forming a seed storage cavity when closed; the seed guide interface is connected to the seed storage cavity; Acupuncture needles are arranged at the bottom of each opening and closing block, and the acupuncture needles on both sides are combined to form a spike portion when the duckbill is closed; An opening and closing rod, fixedly connected to the opening and closing block on one side; a control rod rotatably connected to the upper portion of the fixed plate and in contact with the active contour surface of the cam; An opening and closing steel wire rope is connected between the control rod and the opening and closing rod; When the cam rotates under the drive of the transmission shaft, the duck head is driven to move up and down through the linkage cooperation of the first articulated arm and the second articulated arm; at the same time, the duck bill is driven to open and close through the linkage cooperation of the control rod, the opening and closing wire rope and the opening and closing rod.

2. The hoe-type hole-opening and sowing mechanism of the film-covered hill-drop planter according to claim 1, characterized in that, A first transmission sprocket is connected to one side of the transmission shaft, and the first transmission sprocket is located on the right side of the fixed plate; a second transmission sprocket is rotatably provided on the right side of the fixed plate, and the first transmission sprocket and the second transmission sprocket are connected by chain transmission; the cam is rotatably provided on the left side of the fixed plate, and the cam and the second transmission sprocket are coaxially provided.

3. The hoe-type hole-opening and seeding mechanism of the film-covered hill-drop planter according to claim 1, characterized in that, The first articulated arm includes a first articulated rod, a second articulated rod and a articulated plate. The upper end of the first articulated rod is rotatably connected to the lower part of the fixed plate, the lower end of the second articulated rod is fixed to the duck head, and the lower end of the first articulated rod and the upper end of the second articulated rod are connected through the articulated plate.

4. The hoe-type hole-opening and seeding mechanism of the film-covered hill-drop planter according to claim 3, characterized in that, A guide block is fixedly provided at the lower portion of the fixed plate, and a guide groove for movement of the guide block is provided at the middle portion of the second hinged arm; the lower end of the second hinged arm is hinged to the second hinged rod.

5. The hoe-type hole-opening and sowing mechanism of the film-covered hill-drop planter according to claim 1, characterized in that, A second reset tension spring is connected between the fixing plate and the duckbill mounting seat.

6. The hoe-type hole-opening and seeding mechanism of the film-covered hill-drop planter according to claim 1, characterized in that, When the duckbill is opened, the seeds in the seed storage cavity fall under the action of gravity; at the same time, the hole-opening needles on both sides are opened.

7. The hoe-type hole-opening and seeding mechanism of the film-covered hill-drop planter according to claim 1, characterized in that, The rotation of the cam simultaneously drives the duck head to descend to pierce the film, the hole-opening needles to open the film, the duck bill to open for sowing, the duck head to rise and reset, and the duck bill to close.

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