CN110741778A - Direct insertion type seeder on film - Google Patents

Abstract

The invention relates to a direct-insert seeder on a film, which comprises a rack, wherein a direct-insert seeding device is arranged on the rack, and the direct-insert seeding device comprises a power shaft of the direct-insert seeding device, a crank mechanism and an insert seeding rod, wherein the crank mechanism and the insert seeding rod are arranged in a gearbox; the first chain wheel and the first chain which are arranged on the land wheel shaft transmit power to a power shaft of the direct-insert seeding device, the power shaft of the direct-insert seeding device drives a crank mechanism, and the crank mechanism drives the inserting and sowing rod to perform regular up-and-down direct-insert sowing actions, namely drives a duckbill arranged at the end part of the inserting and sowing rod to perform sowing; still include the soil lifting device that is equipped with in the frame rear end, tractor power output shaft carries the soil covering work that the device accomplished duckbilled opening cave mouth with power through the drive of universal joint subassembly, accomplishes the seeding operation. The film tearing and picking mechanism is reasonable in structure and stable in application, the problems of film tearing, film picking and film hole dislocation caused by film laying and seeding are thoroughly solved through the design of the cam mechanism and the duckbill, the agronomic requirements of rhizome seeding are met, the working efficiency is improved, and the labor is reduced.

Description

Direct insertion type seeder on film

Technical Field

The invention relates to a seeder, in particular to a direct-cutting seeder for rhizome seeds.

Background

And (4) accelerating the growth of the plants in the northwest arid regions by mulching in the rain-fed agriculture. The rootstock crops are generally planted by adopting operation modes of ditching, fertilizing, sowing, ridging, earthing, mulching and the like, and soil is loaded and put after emergence of seedlings. After the film is firstly paved and the soil moisture is preserved, the film breaking sowing is not needed to put seedlings, meanwhile, the investigation and test results show that after the film is firstly paved, the hole sowing is carried out on the film, the rootstock growth is fast, the quality is high, the yield is increased by about 10 percent, the problems of film tearing, film picking, film hole dislocation and the like exist in the existing rootstock sowing machine which is sowed after the film is paved, and part of machine types can not meet the agronomic requirements of the rootstock sowing at all.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a direct-insert seeder on a film, which is reasonable in structure and really realizes the sowing after the film.

In order to achieve the purpose, the invention adopts the technical scheme that: a direct-insert seeder on a film comprises a frame, a suspension bracket used for being connected with a tractor is arranged at one end of the frame, and a seed box is supported at the top end of the suspension bracket through a support frame; the seeder also comprises a land wheel and a land wheel shaft which drive the seeder to walk, wherein the land wheel shaft is arranged below the rack, the land wheel is arranged at two ends of the land wheel shaft, a direct-insert seeding device is arranged on the rack, and the direct-insert seeding device comprises a power shaft of the direct-insert seeding device, a crank mechanism and an insert seeding rod which are arranged in the gearbox; the first chain wheel and the first chain which are arranged on the land wheel shaft transmit power to a power shaft of the direct-insert seeding device, the power shaft of the direct-insert seeding device drives a crank mechanism, and the crank mechanism drives the inserting and sowing rod to perform regular up-and-down direct-insert sowing actions, namely drives a duckbill arranged at the end part of the inserting and sowing rod to perform sowing; the duckbill seeder further comprises a cam mechanism which is arranged on the rack and used for opening the duckbill, a second chain wheel and a second chain are further arranged on the land wheel shaft, the second chain wheel and the second chain transmit power to a power input shaft of the cam mechanism, the power input shaft drives the cam mechanism to open the duckbill for seeding, and a hole opening is formed in the seeding ground; meanwhile, a power input shaft of the cam mechanism drives the seed taking device to guide seeds from the seed box into the duckbills through a third chain wheel and a third chain; still include the soil lifting device that is equipped with in the frame rear end, tractor power output shaft carries the soil covering work that the device accomplished duckbilled opening cave mouth with power through the drive of universal joint subassembly, accomplishes the seeding operation.

Further, crank mechanism include first sprocket and first chain drive's driving gear, driving gear drive and its engaged intermediate gear rotate, further drive and two synchronizing gear and two crank rotations of intermediate gear engaged with, two crank one end and the coaxial setting of synchronizing gear, two articulate other ends are connected with the pole of inserting sowing through articulated connecting rod to drive the pole of inserting sowing and do the action of regularly upper and lower cutting straightly.

Further, the two synchronous gears are respectively a first synchronous gear and a second synchronous gear, and the two cranks are respectively a first crank and a second crank; the crank mechanism also comprises a driven non-circular gear meshed with the driving gear, and the driven non-circular gear, the first synchronous gear and the first crank are coaxially arranged; the driving gear is also a non-circular gear, the driving gear converts the power of uniform rotation into the non-uniform rotation of the driven non-circular gear, horizontal speed compensation is realized, and membrane rupture hole sowing of the duck bill is realized; the second crank and the second synchronous gear are coaxially arranged on the gearbox.

Further, the axes of the two synchronous gears and the middle gear are connected to form a line, and the included angle between the line and the horizontal plane is 30-60 degrees.

Furthermore, the cam mechanism comprises a fixed frame which is used for being connected with the rack 1, the power input shaft is arranged on the fixed frame, and cams are arranged at two ends of the power input shaft; the duckbill type power input device also comprises a pull rod shaft which is arranged on the fixed frame in parallel with the power input shaft, one ends of the two pull rods are respectively arranged at the two end parts of the pull rod shaft, and the other ends of the two pull rods are connected with the duckbills through pull wires; the two pull rods are respectively provided with a pull rod bearing, the pull rod bearings are connected with the cam, and when the cam rotates, one end of each pull rod, which is provided with a pull wire, swings periodically along with the cam; the duckbilled pass through the duckbilled fixing base and install at the pole tip of inserting and sowing, be equipped with the through-hole on the duckbilled fixing base, left duckbilled and right duckbilled setting are in the through-hole both sides, the seed can get into the cavity that left duckbilled and right duckbilled formed when the duckbilled is closed, make to act as go-between and open left duckbilled and right duckbilled when cam jack-up pull rod, the seed falls into the cave downthehole, the duckbilled is closed after unearthing, avoids pressing from both sides soil.

Furthermore, the fixed frame is also provided with a stay wire fixed block for fixing the stay wire.

Furthermore, the seed taking device comprises a chain wheel connecting frame arranged on the seed box, a chain wheel is arranged on the chain wheel connecting frame, and a seed spoon chain is arranged on the chain wheel; a seed protecting box is arranged on the chain wheel connecting frame in the seed box, a seed conveying box is arranged on the chain wheel connecting frame outside the seed box corresponding to the seed protecting box, and the chain wheel penetrates through the seed protecting box and the seed conveying box; at least two seed spoon fixing frames are arranged on the seed spoon chain, and a small seed spoon and a large seed spoon which are mutually and vertically arranged are arranged on the seed spoon fixing frames; a connecting plate connected with the support frame is arranged on the seed conveying box, and a seed conveying outlet of the seed conveying box is correspondingly arranged above the duckbill; work as third sprocket and chain drive sprocket, and then the drive kind of spoon chain rotates on the sprocket, install the big kind of spoon on kind of spoon chain and upwards carry after getting kind from seed case, and get into and protect seed incasement, guarantee that the kind of taking out more can drop to seed case, between protecting the entrance that seed case exported to seed case, kind of spoon chain is the horizontal migration process, at this moment, under seed gravity, the seed drops to the small seed spoon from big kind of spoon, the seed shifts out after the seed case and drops to the duckbilled in afterwards, accomplish the seeding action.

Furthermore, the sprocket link is triangle-shaped, is equipped with three sprocket respectively on the three top of sprocket link, two apex angle sprockets of triangle-shaped sprocket link set up respectively in the export of protecting kind case and the entrance of defeated kind case, another apex angle sprocket of sprocket link sets up in the exit of defeated kind case, this apex angle sprocket shaft passes through third sprocket and chain drive.

Furthermore, a leak-proof plate is fixedly connected at the inlet of the seed conveying box, and an accelerating plate is fixedly connected at the outlet of the seed conveying box.

Furthermore, the soil lifting device comprises a power input shaft of the soil lifting device and a soil conveying belt driven by the power input shaft of the soil lifting device, soil conveying side plates are arranged on two sides of the soil conveying belt, a soil lifting shovel is fixedly arranged on the soil conveying side plate at the soil lifting end of the soil conveying belt through a connecting plate, a movable adjusting plate is arranged on the connecting plate at one end, connected with the soil conveying side plate, of the connecting plate, the movable adjusting plate is connected with a fixed adjusting plate arranged on the inner side of the soil conveying side plate through a screw rod and a pull rod, the soil lifting shovel is adjusted in soil penetration depth through the screw rod, and the screw rod is connected with the pull rod through threads; the power input shaft of the soil lifting device drives the soil conveying belt to rotate, the soil lifting shovel shovels the furrow soil, then the soil conveying belt moves the soil upwards, the soil falls to the duckbilled opening, and the seeding flow is completed

The invention has the beneficial effects that: rational in infrastructure, it is stable to use, and the design of cam mechanism and duckbilled has thoroughly solved earlier and has spread the membrane after the seeding dyestripping that causes, choose membrane and membrane hole dislocation problem, satisfies rhizome class seeding agronomic requirement, has improved work efficiency, reduces the manual work.

Drawings

FIG. 1 is a front view of a direct-insert planter on a rhizome membrane of the present invention;

FIG. 2 is a front view of the direct-insertion planter on rhizomatic membranes of FIG. 1;

FIG. 3 is a side view of the non-circular gear-double crank direct insertion planting device and cam device of the planter of the present invention;

FIG. 4 is a side view of the shaft of the gap bridge type seed taking device of the seeder of the present invention;

FIG. 5 is an isometric view of a soil lifting device of the seeding machine of the present invention;

fig. 6 is a diagram of the movement track of the hill planter of the non-circular gear-double-crank direct-insert seeding device of the seeding machine of the invention.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Example 1: as shown in fig. 1-6, a direct-insert seeder on a film comprises a frame 1, a suspension bracket 2 for connecting with a tractor is arranged at one end of the frame 1, and a seed box 4-10 is supported at the top end of the suspension bracket 2 through a support frame; the seeder also comprises a land wheel 7 and a land wheel shaft 71 which drive the seeder to walk, wherein the land wheel shaft 71 is arranged below the rack 1, the land wheel 7 is arranged at two ends of the land wheel shaft 71, the rack 1 is provided with the direct-insert seeding device 3, and the direct-insert seeding device 3 comprises a power shaft of the direct-insert seeding device 3, a crank mechanism arranged in the gearbox 3-1 and an inserting rod 3-6 of the crank mechanism; the first chain wheel 11 and the first chain 12 arranged on the land wheel shaft 71 transmit power to the power shaft of the direct-insert seeding device 3, the power shaft of the direct-insert seeding device 3 drives a crank mechanism, and the crank mechanism drives the inserting and seeding rod 3-6 to perform regular up-and-down direct-insert seeding action, namely drives the duckbill arranged at the end part of the inserting and seeding rod 3-6 to perform seeding; the duck bill seeder further comprises a cam mechanism 5 which is arranged on the frame 1 and used for opening the duck bill, a second chain wheel 13 and a second chain 14 are further arranged on the land wheel shaft 71, the second chain wheel 13 and the second chain 14 transmit power to a power input shaft 5-8 of the cam mechanism 5, the power input shaft 5-8 drives the cam mechanism 5 to open the duck bill for seeding, and a hole opening is formed in the seeding ground; meanwhile, the power input shaft 5-8 of the cam mechanism 5 drives the seed taking device 4 through a third chain wheel 15 and a third chain 16 to guide seeds from the seed box 4-10 into the duckbills; the soil-covering machine is characterized by further comprising a soil-lifting device 6 arranged at the rear end of the machine frame, a power output shaft of the tractor drives the soil-lifting device 6 to complete soil-covering work of duckbill hole opening through a universal joint assembly 8, and seeding operation is completed.

The crank mechanism comprises a driving gear 3-2 driven by the first chain wheel 11 and the first chain 12, the driving gear 3-2 drives an intermediate gear 3-11 meshed with the driving gear to rotate, and further drives two synchronous gears meshed with the intermediate gear 3-11 to rotate, so as to drive the two cranks to rotate, one ends of the two cranks are respectively coaxially arranged with the two synchronous gears, and the other ends of the two cranks are connected with the sowing insertion rod 3-6 through a connecting rod 3-5 in hinged connection, so as to drive the sowing insertion rod 3-6 to perform regular vertical sowing actions. The two synchronous gears are respectively a first synchronous gear and a second synchronous gear 3-10, and the two cranks are respectively a first crank 3-4 and a second crank 3-12; the crank mechanism also comprises a driven non-circular gear 3-3 meshed with the driving gear 3-2, and the driven non-circular gear 3-3, the first synchronous gear and the first crank 3-4 are coaxially arranged; the driving gear 3-2 is also a non-circular gear, the driving gear 3-2 converts the power of uniform rotation into the non-uniform rotation of the driven non-circular gear 3-3, horizontal speed compensation is realized, and membrane rupture hole sowing is realized by duckbilled bills; the second crank 3-12 and the second synchronous gear 3-10 are coaxially mounted on the gearbox 3-1. The axes of the two synchronous gears and the middle gear 3-11 are connected into a line, and the included angle between the line and the horizontal plane is 30-60 degrees.

The cam mechanism 5 comprises a fixed frame 5-1 which is used for being connected with the rack 1, the power input shaft 5-8 is arranged on the fixed frame 5-1, and cams 5-3 are arranged at two ends of the power input shaft 5-8; the duckbilled automatic feeding device also comprises pull rod shafts 5-4 which are arranged on the fixed frame 5-1 in parallel with the power input shaft 5-8, one ends of the two pull rods 5-2 are respectively arranged at the two end parts of the pull rod shafts 5-4, and the other ends of the two pull rods 5-2 are connected with the duckbills through pull wires 5-7; the two pull rods 5-2 are respectively provided with a pull rod bearing 5-5, the pull rod bearings 5-5 are connected with the cam 5-3, and when the cam 5-3 rotates, one end of each pull rod 5-2, which is provided with a pull wire 5-7, swings periodically along with the cam 5-3; the duckbilled install and insert 3-6 tip at the pole of sowing through duckbilled fixing base 3-9, be equipped with the through-hole on duckbilled fixing base 3-9, left duckbilled 3-7 and right duckbilled 3-8 set up in the through-hole both sides, the seed can get into the cavity that left duckbilled 3-7 and right duckbilled 3-8 formed when the duckbilled is closed, in the cam 5-3 jack-up pull rod 5-2 makes acting as go-between 5-7 pull open left duckbilled 3-7 and right duckbilled 3-8, will jack-up pull rod 5-2 when cam 5-3 turns to A region in the figure 3, the seed falls into the cavern, close after the duckbilled unearths, avoid pressing from earth. The fixed frame 5-1 is also provided with a pull wire fixed block 5-6 for fixing the pull wire 5-7.

The seed taking device 4 comprises a chain wheel connecting frame 4-3 arranged on the seed box 4-10, a chain wheel 4-4 is arranged on the chain wheel connecting frame 4-3, and a seed spoon chain 4-9 is arranged on the chain wheel 4-4; a seed protecting box 4-11 is arranged on a chain wheel connecting frame 4-3 in the seed box 4-10, a seed conveying box 4-2 is arranged on the chain wheel connecting frame 4-3 at the outer side of the seed box 4-10 corresponding to the seed protecting box 4-11, and the chain wheel 4-4 is arranged in the seed protecting box 4-11 and the seed conveying box 4-2 in a penetrating way; at least two seed spoon fixing frames 4-8 are arranged on the seed spoon chains 4-9, and small seed spoons 4-6 and large seed spoons 4-7 which are mutually perpendicular are arranged on the seed spoon fixing frames 4-8; a connecting plate 4-1 connected with the support frame is arranged on the seed conveying box 4-2, and a seed conveying outlet of the seed conveying box 4-2 is correspondingly arranged above the duckbill; when the third chain wheel 15 and the third chain 16 drive the chain wheel 4-4 and further drive the seed spoon chain 4-9 to rotate on the chain wheel 4-4, the large seed spoon 4-7 arranged on the seed spoon chain 4-9 takes seeds from the seed box 4-10 and then conveys the seeds upwards and enters the seed protecting box 4-11, so that the seeds which are taken out can fall into the seed box 4-10, the seed spoon chain 4-9 horizontally moves between the outlet of the seed protecting box 4-11 and the inlet of the seed conveying box 4-2, at the moment, under the action of gravity of the seeds, the seeds fall into the small seed spoon 4-6 from the large seed spoon 4-7, and then fall into a duck bill after being moved out of the seed conveying box 4-2, and the seeding action is completed.

The chain wheel connecting frame 4-3 is triangular, three chain wheels 4-4 are respectively arranged at three top ends of the chain wheel connecting frame 4-3, two vertex angle chain wheels of the triangular chain wheel connecting frame 4-3 are respectively arranged at an outlet of the seed protecting box 4-11 and an inlet of the seed conveying box 4-2, the other vertex angle chain wheel of the chain wheel connecting frame 4-3 is arranged at an outlet of the seed conveying box 4-2, and a shaft of the vertex angle chain wheel is driven by a third chain wheel 15 and a third chain 16.

An inlet of the seed conveying box 4-2 is fixedly connected with a leak-proof plate 4-5, and an outlet of the seed conveying box 4-2 is fixedly connected with an accelerating plate 4-12.

The soil lifting device 6 comprises a power input shaft 6-9 of the soil lifting device 6, a soil conveying belt 6-8 driven by the power input shaft of the soil lifting device 6, soil conveying side plates 6-1 arranged at two sides of the soil conveying belt 6-8, a soil lifting shovel 6-2 is fixedly arranged on the soil conveying side plate 6-1 at the soil lifting end of the soil conveying belt 6-8 through a connecting plate 6-7, a movable adjusting plate 6-3 is arranged on the connecting plate 6-7 at one end of the connecting plate 6-7 connected with the soil conveying side plate 6-1, the movable adjusting plate 6-3 is connected with a fixed adjusting plate 6-4 arranged at the inner side of the soil conveying side plate 6-1 through a screw 6-5 and a pull rod 6-6, the depth of the soil shovel 6-2 into the soil is adjusted through a screw rod 6-5, and the screw rod 6-5 is connected with a pull rod 6-6 through threads; the power input shaft 6-9 of the soil lifting device 6 drives the soil conveying belt 6-8 to rotate, the soil lifting shovel 6-2 lifts the furrow soil, then the soil conveying belt 6-8 moves the soil upwards, and the soil falls to the duckbill opening, so that the seeding process is completed.

During operation, the direct-insert seeder on the rhizome membrane is hung on a rear hanging rack 2 of a tractor and moves forward along with the traction of the tractor, a clutch handle 9 is pulled, a land wheel assembly 7 transmits power to a driving non-circular gear 3-2 of a direct-insert seeding device 3 through a chain wheel and a chain, the driving non-circular gear 3-2 converts uniform rotation into non-uniform rotation of a driven non-circular gear 3-3 through meshing, a synchronous gear 3-10 is driven, an intermediate gear 3-11 rotates to drive two cranks 3-4 to synchronously rotate, and a connecting rod 3-5 connected with the cranks is driven to enable an inserting rod 3-6 to perform regular direct-insert seeding action.

Meanwhile, the land wheel assembly 7 transmits power to a power input shaft 5-8 of the duckbilled opening cam mechanism 5 through a chain wheel and a chain to drive the cam 5-3 to rotate, the pull rod 5-2 periodically swings along with the cam 5-3 to synchronously pull the pull wire 5-7 to open and close the left duckbilled part 3-7 and the right duckbilled part 3-8 of the straight-cut seeding device 3, the power input shaft 5-8 of the cam mechanism 5 is connected with a power input shaft of the seed taking device 4 through the chain wheel and the chain 4-9 to drive the seed spoon chain 4-9 to rotate, the large seed spoon 4-7 arranged on the spoon chain 4-9 is taken from the seed box 4-10 and then is conveyed upwards, the large seed spoon 4-6 falls to the small seed spoon 4-6 under the action of the gravity of the seeds in the horizontal moving process, the taken seeds can fall back to the seed box 4-10 and then can move in, then the seeds fall into the duckbilled of the direct-insert seeding device 3 through the seed conveying box 4-2, the film is broken under the direct-insert horizontal speed compensation effect of the direct-insert seeding device 3 for bunch planting, the duckbilled is pulled under the effect of the pull wire 5-7 when the duckbilled is lifted, the duckbilled is closed after the duckbilled is out of the soil, the soil is prevented from being clamped,

meanwhile, a power output shaft of the tractor transmits power to a power input shaft of the soil lifting device 6 through the universal joint assembly 8 to drive the soil conveying belt 6-8 to rotate, the soil lifting shovel 6-2 lifts the furrow soil, then the soil conveying belt 6-8 moves the soil upwards and falls to a duckbill opening, a root and stem seed sowing process is completed, and the sowing operation is repeatedly completed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A direct-insert seeder on a film comprises a frame, a suspension bracket used for being connected with a tractor is arranged at one end of the frame, and a seed box is supported at the top end of the suspension bracket through a support frame; still including the drive land wheel and land axle that the seeder is walked about, the land axle sets up in the frame below, and the land wheel sets up at the both ends of land axle, its characterized in that: a direct-insert seeding device is arranged on the rack and comprises a power shaft of the direct-insert seeding device, a crank mechanism and an insert seeding rod, wherein the crank mechanism and the insert seeding rod are arranged in a gearbox; the first chain wheel and the first chain which are arranged on the land wheel shaft transmit power to a power shaft of the direct-insert seeding device, the power shaft of the direct-insert seeding device drives a crank mechanism, and the crank mechanism drives the inserting and sowing rod to perform regular up-and-down direct-insert sowing actions, namely drives a duckbill arranged at the end part of the inserting and sowing rod to perform sowing; the duckbill seeder further comprises a cam mechanism which is arranged on the rack and used for opening the duckbill, a second chain wheel and a second chain are further arranged on the land wheel shaft, the second chain wheel and the second chain transmit power to a power input shaft of the cam mechanism, the power input shaft drives the cam mechanism to open the duckbill for seeding, and a hole opening is formed in the seeding ground; meanwhile, a power input shaft of the cam mechanism drives the seed taking device to guide seeds from the seed box into the duckbills through a third chain wheel and a third chain; still include the soil lifting device that is equipped with in the frame rear end, tractor power output shaft carries the soil covering work that the device accomplished duckbilled opening cave mouth with power through the drive of universal joint subassembly, accomplishes the seeding operation.

2. The in-line planter on film as claimed in claim 1, wherein said crank mechanism comprises said first sprocket and said first chain driven driving gear, said driving gear drives said intermediate gear engaged therewith to rotate, further driving said two synchronizing gears and said two cranks engaged with said intermediate gear to rotate, one end of said two cranks is coaxially disposed with said synchronizing gears, and the other end of said two cranks is connected with said sowing bar by means of a connecting rod hinged thereto, so as to drive said sowing bar to perform regular up-and-down in-line planting.

3. The in-line film planter according to claim 2 wherein said two synchronizing gears are a first synchronizing gear and a second synchronizing gear, respectively, and said two cranks are a first crank and a second crank, respectively; the crank mechanism also comprises a driven non-circular gear meshed with the driving gear, and the driven non-circular gear, the first synchronous gear and the first crank are coaxially arranged; the driving gear is also a non-circular gear, the driving gear converts the power of uniform rotation into the non-uniform rotation of the driven non-circular gear, horizontal speed compensation is realized, and membrane rupture hole sowing of the duck bill is realized; the second crank and the second synchronous gear are coaxially arranged on the gearbox.

4. The in-line planter according to claim 2 wherein the axes of said two synchronizing gears and said intermediate gear are connected in a line, and wherein said line is angled from 30 ° to 60 ° with respect to the horizontal.

5. The in-film planter according to claim 1 wherein said cam mechanism comprises a mount for attachment to frame 1, said power input shaft being mounted on said mount, said cam being mounted on each end of said power input shaft; the duckbill type power input device also comprises a pull rod shaft which is arranged on the fixed frame in parallel with the power input shaft, one ends of the two pull rods are respectively arranged at the two end parts of the pull rod shaft, and the other ends of the two pull rods are connected with the duckbills through pull wires; the two pull rods are respectively provided with a pull rod bearing, the pull rod bearings are connected with the cam, and when the cam rotates, one end of each pull rod, which is provided with a pull wire, swings periodically along with the cam; the duckbilled pass through the duckbilled fixing base and install at the pole tip of inserting and sowing, be equipped with the through-hole on the duckbilled fixing base, left duckbilled and right duckbilled setting are in the through-hole both sides, the seed can get into the cavity that left duckbilled and right duckbilled formed when the duckbilled is closed, make to act as go-between and open left duckbilled and right duckbilled when cam jack-up pull rod, the seed falls into the cave downthehole, the duckbilled is closed after unearthing, avoids pressing from both sides soil.

6. The in-film seeder as claimed in claim 5, wherein a fixing block for fixing the pulling wire is further provided on the fixing frame.

7. The in-line film seeder as claimed in claim 1, wherein the seed-taking device comprises a sprocket connecting frame provided on the seed box, a sprocket is provided on the sprocket connecting frame, and a seed spoon chain is provided on the sprocket; a seed protecting box is arranged on the chain wheel connecting frame in the seed box, a seed conveying box is arranged on the chain wheel connecting frame outside the seed box corresponding to the seed protecting box, and the chain wheel penetrates through the seed protecting box and the seed conveying box; at least two seed spoon fixing frames are arranged on the seed spoon chain, and a small seed spoon and a large seed spoon which are mutually and vertically arranged are arranged on the seed spoon fixing frames; a connecting plate connected with the support frame is arranged on the seed conveying box, and a seed conveying outlet of the seed conveying box is correspondingly arranged above the duckbill; work as third sprocket and third chain drive sprocket, and then the drive kind of spoon chain rotates on the sprocket, install the big kind of spoon on kind of spoon chain and upwards carry after getting kind from seed case, and get into and protect seed case, guarantee that the kind of taking out more can drop to seed case, between protecting the entrance of seed case export to defeated kind of case, kind of spoon chain is the horizontal migration process, at this moment, under seed action of gravity, the seed drops to the small size spoon from big kind of spoon, the seed shifts out after afterwards and drops to the duckbilled in, accomplish the seeding action.

8. The in-line film seeder of claim 7, wherein the sprocket attachment is triangular, three sprockets are provided at three top ends of the sprocket attachment, two top-angle sprockets of the triangular sprocket attachment are provided at the outlet of the seed-protecting box and the inlet of the seed-transporting box, respectively, and the other top-angle sprocket of the sprocket attachment is provided at the outlet of the seed-transporting box, and the top-angle sprocket shaft is driven by the third sprocket and the third chain.

9. The in-line planter for mulching films as claimed in claim 7, wherein a leak-proof plate is fixedly connected to an inlet of the seed box, and an acceleration plate is fixedly connected to an outlet of the seed box.

10. The in-film planter according to claim 1, wherein the soil lifting device comprises a power input shaft of the soil lifting device, a soil conveying belt driven by the power input shaft of the soil lifting device, soil conveying side plates are arranged on both sides of the soil conveying belt, a soil lifting shovel is fixedly arranged on the soil conveying side plate at the soil lifting end of the soil conveying belt through a connecting plate, a movable adjusting plate is arranged on the connecting plate at one end of the connecting plate connected with the soil conveying side plates, the movable adjusting plate is connected with the fixed adjusting plate arranged on the inner side of the soil conveying side plate through a screw rod and a pull rod, the soil lifting shovel is adjusted in soil penetration depth through the screw rod, and the screw rod is connected with the pull rod through threads; the power input shaft of the soil lifting device drives the soil conveying belt to rotate, the soil lifting shovel shovels the furrow soil, and then the soil conveying belt moves the soil upwards and falls to the duckbilled opening to complete the seeding process.

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