A furrow-opening seeding mechanism for a film-coated hill planter

Abstract

The utility model discloses a kind of furrower type hole-opening seeding mechanism of film drilling machine, comprising: fixed plate;Transmission shaft;Cam;First hinged arm;Duck head;Second hinged arm;Duck head comprises: duckbill mounting seat, its upper end is provided with seed guiding interface;Duckbill, including two opening and closing blocks, the upper portion of opening and closing block is connected to the lower portion of duckbill mounting seat two sides, the upper portion between two sides opening and closing block is provided with the tooth portion of intermeshing, so that two sides opening and closing block are in closed state when stationary;Seed guiding interface is communicated with seed storage cavity;Hole-opening needle, set in the lower portion of each opening and closing block, two sides hole-opening needle are combined to form thorn part when duckbill is closed;Opening and closing rod, fixedly connected on the opening and closing block of one side;Control rod, rotationally connected on the upper portion of fixed plate;Opening and closing steel wire pull rope, connected between control rod and opening and closing rod.The utility model is through the linkage design of cam drive, realizes the precise cooperation and efficient integration of three core actions of duck head lifting, hole-opening needle film piercing and opening, duckbill opening and closing seed throwing under single power source.

Description

Technical Field

[0001] This utility model relates to the field of mulched seeders, and in particular to a hoe-type hole-opening and sowing mechanism for a mulched seeder. Background Technology

[0002] In mulched seeding technology, it is usually necessary to first lay mulch film to retain heat and moisture, followed by making holes in the film and precisely sowing seeds. In existing technologies, the film-breaking and sowing actions are often completed step-by-step by different mechanisms or lack coordination, leading to problems such as low operational efficiency, irregular hole shapes (which easily cause the film to tear and expand), and large deviations between the sowing position and the hole position. Manual film-breaking and sowing is even more labor-intensive and inefficient. There is an urgent need for a seeding mechanism that can simultaneously and precisely complete the integrated actions of piercing the mulch film, opening the holes, and precisely sowing seeds to improve the mechanization, operational efficiency, and sowing quality of mulched seeding. Utility Model Content

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

[0004] According to one aspect of this utility model, a hoe-type hole-opening and sowing mechanism for a mulched hole-seeding machine is provided, comprising: a fixed plate, fixedly mounted on the mulched hole-seeding machine; a transmission shaft, rotatably connected to the fixed plate and drively connected to the output shaft of the mulched hole-seeding machine; a cam, rotatably disposed on one side of the fixed plate and drively connected to the transmission shaft; a first hinge 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 hinge arm; and a second hinge arm, the upper end of which is rotatably connected to the cam, and the lower end of which is hinged to the first hinge arm; wherein, the duck head includes: a duckbill mounting seat, the upper end of which is provided with a seed guide interface; the duckbill includes two opening and closing blocks, the upper parts of which are rotatably connected to the lower two sides of the duckbill mounting seat, and the upper parts of the two opening and closing blocks are provided with mutually meshing teeth; the duckbill... A first return spring connects the mounting base to one of the opening and closing blocks, ensuring that both opening and closing blocks are in a closed state when stationary. Arc-shaped grooves are provided on the opposite surfaces of both opening and closing blocks, forming a seed storage cavity when closed. The seed guide interface communicates with the seed storage cavity. Acupuncture needles are located at the lower part of each opening and closing block, and the needles on both sides combine to form a spike when the duck's beak closes. An opening and closing rod is fixed to one of the opening and closing blocks. A control rod is rotatably connected to the upper part of the fixed plate and contacts the movable contour surface of the cam. An opening and closing steel wire rope connects 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 of the first and second hinge arms. Simultaneously, the opening and closing of the duck's beak is driven through the linkage of the control rod, the opening and closing steel wire rope, and the opening and closing rod.

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

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

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

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

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

[0010] In some embodiments, the rotation of the cam simultaneously drives the duck head to descend and pierce the film, the hole-opening needle to open the film, the duck beak to open for sowing, the duck head to rise and return to its original position, and the duck beak to close.

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

[0012] This utility model achieves precise coordination and efficient integration of three core actions—duck head lifting, acupuncture and membrane opening, and duck beak opening and closing for seeding—under a single power source through a cam-driven linkage design.

[0013] Its beneficial effects are significant:

[0014] Integrated and efficient operation: During the descent of the duck head, the combined hole-opening needles accurately pierce the plastic film. Then the duck beak opens, and the hole-opening needles move to both sides in sync to expand the piercing point into a regular hole. At the same time, the seeds fall accurately into the hole. The entire process of breaking the film, opening the hole, and sowing is completed in a single stroke, which greatly improves the efficiency of operation.

[0015] High-quality membrane puncture and hole opening: The combination of opening needles forms a sharp point that facilitates membrane puncture, and the opening action forms regular holes, effectively reducing membrane tearing and protecting the integrity of the membrane;

[0016] Precise and reliable sowing: The duckbill only opens to sow seeds after it has descended into place and the hole-opening needle has opened, ensuring that the seeds fall precisely into the holes formed by the broken film and avoiding missed sowing or deviation.

[0017] Compact and well-coordinated structure: The cam, as the core driving element, achieves precise transmission and synchronous control of complex movements through a hinged arm system, control lever, and opening / closing steel wire rope. The structure is reasonable and reliable, and the operation is smooth and stable. Overall, it significantly improves the mechanization level and operational quality of mulched seeding. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the left side structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the right side structure of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the duck head of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the duckbill of this utility model;

[0023] Figure 6 This is a schematic diagram of the connection structure between the opening / closing rod and the opening / closing block of this utility model. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] refer to Figures 1 to 6This application provides a hoe-type hole-opening and sowing mechanism for a mulched hole-seeding machine, comprising: a fixed plate 1, fixedly mounted on the mulched hole-seeding machine; a transmission shaft 11, rotatably connected to the fixed plate 1 and drivingly connected to the output shaft of the mulched hole-seeding machine; a cam 12, rotatably disposed on one side of the fixed plate 1 and drivingly connected to the transmission shaft 11; a first hinge arm 13, the upper end of which is rotatably connected to the lower side of the fixed plate 1; a duck head 2, disposed at the lower end of the first hinge arm 13; and a second... The hinge arm 14 has its upper end rotatably connected to the cam 12 and its lower end hinged to the first hinge arm 13; wherein, the duck head 2 includes: a duckbill mounting base 21, the upper end of which is provided with a seed guide interface 22; a duckbill 23, including two opening and closing blocks 231, the upper part of the opening and closing blocks 231 being rotatably connected to the lower two sides of the duckbill mounting base 21, and the upper parts of the two opening and closing blocks 231 being provided with mutually meshing teeth 232, and the duckbill mounting base 21 being connected to one side of the opening and closing block 231. A first reset spring is connected, so that the two opening and closing blocks 231 are in the closed state when at rest; the opposite surfaces of the two opening and closing blocks 231 are respectively provided with arc-shaped grooves 234, which form a seed storage cavity 235 when closed; the seed guide interface 22 is connected to the seed storage cavity 235; the opening needle 24 is provided at the lower part of each opening and closing block 231, and the opening needles 24 on both sides combine to form a spike 241 when the duckbill 23 is closed; the opening and closing rod 25 is fixed to the opening and closing block 231 on one side; control Rod 15 is rotatably connected to the upper part of fixed plate 1 and contacts the movable contour surface of cam 12; opening and closing steel wire rope (not shown in the figure) is connected between control rod 15 and opening and closing rod 25; when cam 12 rotates under the drive of transmission shaft 11, it drives duck head 2 to move up and down through the linkage of first hinge arm 13 and second hinge arm 14; at the same time, through the linkage of control rod 15, opening and closing steel wire rope and opening and closing rod 25, it drives duck beak 23 to open and close.

[0026] In this embodiment, the mulching seeder has an output shaft, which drives the transmission shaft 11 to rotate via a gearbox; the mulching seeder has a seed bin, which delivers a certain amount of seeds to the seed guide interface 22 at regular intervals.

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

[0028] A first return spring is connected between the duckbill mounting base 21 and the opening and closing block 231 on one side. Specifically, the first return spring is connected between the rear left side of the duckbill mounting base 21 and the opening and closing block 231 on the right side, so that when stationary, the opening and closing blocks 231 on both sides are in a closed state under the structure of the toothed part 232.

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

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

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

[0032] The drive shaft 11 drives the cam 12 to rotate synchronously through the first drive sprocket 16, chain and second drive sprocket 17. The lift 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 downward. At the same time, the first articulated rod 131 rotates about the hinge point of the fixed plate 1 as the axis, causing 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 base 21. The addition of the second reset spring 19 makes the lifting and lowering of the duck head 2 more stable and less impactful, effectively extending the mechanical life and reducing noise during high-speed operation.

[0034] In some embodiments, when the duckbill 23 opens, the seeds in the seed storage cavity 235 fall out under the action of gravity; at the same time, the two opening needles 24 open.

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

[0036] Sowing action phase:

[0037] When the duck head 2 descends to its lowest position (corresponding to the maximum lift point of cam 12), the spike 241 of the opening needle 24 pierces the mulch film. At this time, the high point of cam 12 presses the control rod 15 to rotate around the fulcrum on the fixed plate 1, pulling the opening rod 25 through the opening and closing steel wire rope, forcing one side of the opening block 231 to rotate around the axis of the duck beak mounting seat 21; because the meshing teeth 232 on the upper part of the opening block 231 mesh with each other, the other side of the opening block 231 rotates synchronously in the opposite direction, realizing the symmetrical opening of the duck beak 23. The seeds in the seed storage chamber 235 fall into the soil under the film under the action of gravity, while the opening needles 24 on both sides expand obliquely outward, expanding the piercing hole into a regular round hole (to prevent the film from tearing).

[0038] Reset phase:

[0039] After the cam 12 enters the return section, the second reset spring 19 releases its elasticity, pulling the duckbill mounting seat 21 upward, 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, the opening and closing steel wire rope loosens, and the duckbill 23 closes under the action of the first reset spring, preparing for the next seed supply from the seed guide interface 22.

[0040] This utility model achieves precise coordination and efficient integration of three core actions—the lifting and lowering of the duck head 2, the puncture and opening of the acupuncture needle 24, and the opening and closing of the duck beak 23 for seeding—under a single power source through a linkage design driven by the cam 12.

[0041] Its beneficial effects are significant:

[0042] Integrated and efficient operation: During the descent of the duck head 2, the combined hole-opening needle 24 accurately pierces the plastic film. Then the duck beak 23 opens, and the hole-opening needle 24 moves to both sides in sync to expand the piercing point into a regular hole. At the same time, the seed falls accurately into the hole. The entire process of breaking the film, opening the hole, and sowing is completed in a single stroke, which greatly improves the efficiency of operation.

[0043] High-quality membrane puncture and hole opening: The combination of 24 opening needles forms a sharp point that facilitates membrane puncture, and the opening action forms regular holes, effectively reducing membrane tearing and protecting the integrity of the membrane;

[0044] Precise and reliable sowing: The duckbill 23 opens only after it has descended to the correct position and the hole-opening needle 24 has opened, ensuring that the seeds fall precisely into the holes formed by the broken film, avoiding missed sowing or deviation;

[0045] Compact and well-coordinated structure: Cam 12, as the core driving element, achieves precise transmission and synchronous control of complex movements through articulated arm system, control rod 15, and opening and closing steel wire rope. The structure is reasonable and reliable, and the operation is smooth and stable. Overall, it significantly improves the mechanization level and operation quality of mulching and seeding.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hoe-type hole-opening and sowing mechanism for a film-mulched hole-seeding machine, characterized in that, include: A fixing plate is fixedly installed on the film-covering seeding machine; The drive shaft is rotatably connected to the fixed plate and is connected to the output shaft of the film-covered seeding machine. A cam is rotatably mounted on one side of the fixed plate and is connected to the drive shaft for transmission. The first hinge arm has its upper end rotatably connected to the lower side of the fixed plate; The duck head is located at the lower end of the first hinge arm; The second hinge arm has its upper end rotatably connected to the cam and its lower end hinged to the first hinge arm. The duck head includes: The duckbill mounting base has a seed guide interface at its upper end; The duckbill includes two opening and closing blocks. The upper part of each opening and closing block is rotatably connected to the lower two sides of the duckbill mounting base. The upper parts of the two opening and closing blocks on both sides are provided with interlocking teeth. A first return spring is connected between the duckbill mounting base and one of the opening and closing blocks, so that the two opening and closing blocks are in a closed state when at rest. The opposite surfaces of the two 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. Acupuncture needles are placed at the lower part of each of the opening and closing blocks, and the acupuncture needles on both sides combine to form a spike when the duckbill is closed; The opening and closing rod is fixedly connected to the opening and closing block on one side; The control lever is rotatably connected to the upper part of the fixed plate and contacts the movable 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, it drives the duck head to move up and down through the linkage of the first hinge arm and the second hinge arm; at the same time, it drives the duck beak to open and close through the linkage of the control rod, the opening and closing steel wire rope and the opening and closing rod.

2. The hoe-type hole-opening and sowing mechanism of the mulched seeder according to claim 1, characterized in that, A first drive sprocket is connected to one side of the drive shaft, and the first drive sprocket is located on the right side of the fixed plate; a second drive sprocket is rotatably arranged on the right side of the fixed plate, and the first drive sprocket and the second drive sprocket are connected by chain drive; a cam is rotatably arranged on the left side of the fixed plate, and the cam is coaxially arranged with the second drive sprocket.

3. The hoe-type hole-opening and sowing mechanism of the mulched seeder according to claim 1, characterized in that, The first hinge arm includes a first hinge rod, a second hinge rod, and a hinge plate. The upper end of the first hinge rod is rotatably connected to the lower part of the fixed plate, the lower end of the second hinge rod is fixedly connected to the duck head, and the lower end of the first hinge rod and the upper end of the second hinge rod are connected through the hinge plate.

4. The hoe-type hole-opening and sowing mechanism of the mulched seeder according to claim 3, characterized in that, A guide block is fixedly provided at the lower part of the fixed plate, and a guide groove for the guide block to move is provided in the middle part of the second hinge arm; the lower end of the second hinge arm is hinged to the second hinge rod.

5. The hoe-type hole-opening and sowing mechanism of the mulched seeder according to claim 1, characterized in that, A second reset spring is connected between the fixing plate and the duckbill mounting base.

6. The hoe-type hole-opening and sowing mechanism of the mulched seeder according to claim 1, characterized in that, When the duckbill opens, the seeds in the seed storage cavity fall out under the action of gravity; at the same time, the acupoint opening needles on both sides open.

7. The hoe-type hole-opening and sowing mechanism of the mulched seeder according to claim 1, characterized in that, The rotation of the cam simultaneously drives the duck head to descend and pierce the film, the acupuncture needle to open the film, the duck beak to open for sowing, the duck head to rise and return to its original position, and the duck beak to close.

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