CN104521644A - Single-ridge double-row full-automatic film mulching machine - Google Patents
Single-ridge double-row full-automatic film mulching machine Download PDFInfo
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- CN104521644A CN104521644A CN201510052142.7A CN201510052142A CN104521644A CN 104521644 A CN104521644 A CN 104521644A CN 201510052142 A CN201510052142 A CN 201510052142A CN 104521644 A CN104521644 A CN 104521644A
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- overlay film
- native
- support bar
- road wheel
- bearing
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0287—Devices for laying-out or removing ground coverings
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Protection Of Plants (AREA)
- Soil Working Implements (AREA)
Abstract
The invention relates to a single-ridge double-row full-automatic film mulching machine. A V-shaped supporting tube is fixedly arranged at the rear side of a support, a connecting shaft is fixedly connected with a cross rod, the end part of the cross rod is movably connected with a rotary shaft sleeve, the rotary shaft sleeve is fixedly connected with travelling wheels, a soil-receiving concave sheet is fixedly arranged at the inner side of a soil-lifting shifting sheet, the V-shaped supporting tube is of a hollow tubular structure, an angle of the V-shaped supporting tube is 345 degrees, an angle between each travelling wheel and the horizontal plane is 75 degrees, and the two travelling wheels are symmetrically arranged at the two sides of the V-shaped supporting tube by virtue of the connecting shaft. The single-ridge double-row full-automatic film mulching machine has the advantages that the mechanical degree and the automatic degree are high, a human resource is greatly saved, a mulched film is stably and firmly fixed, a risk that the film is blown away by wind is reduced, an inclined angle of the travelling wheels during advancing can be controlled by virtue of the V-shaped supporting tube, automatic earthing operation is carried out during operation of the travelling wheels, and the distance between the two travelling wheels can be regulated, so that the single-ridge double-row full-automatic film mulching machine is applicable to large-scale production and application.
Description
Technical field
The present invention relates to Field of Tobacco, be specifically related to one and grow tobacco agricultural machinery, the particularly full-automatic laminating machine of one list ridge duplicate rows.
Background technology
Plastic-film-covered cultivation, for insulation, soil moisture conservation, fertilizer conservation, promotes that the volume increase of field crop precocity has positive effect.Plastic-film-covered cultivation utilizes plastic film and other material mulching soil surface or crop canopies overhead, the temperature of artificial manufacture crops local environment, light, moisture, nutrient, topsoil mechanism and microorganism etc., thus realize a farmland ecoengineering complex art of high crop yield stable yields.
In the planting process of tobacco, need ridging overlay film, existing film coating technique needs manually to complete, or auxiliary simple machinery completes, waste of manpower resource, and operating efficiency is low.Occur some simple overlay films machineries in the market, major part needs Manual-pushing, and automaticity is low, can not realize trench digging, epiphragma, earthing is disposable completes.Even if some plant equipment can realize above-mentioned link-up operation, but its earthing operation needs artificial again to add firming operation, earthing operation complete shortage automation, and the difficulty action accomplishment of earthing operation is lower, and earthing is insecure.In addition, current plant equipment can not regulate row spacing, can not carry out width adjusting according to actual conditions to row spacing, causes equipment use scope not extensive.Namely allowed to earthing operation, in the middle part of epiphragma rear film, allowed right needs manually add soil to realize the stability of epiphragma.As from the foregoing, the simple and mechanical earthing that can realize traditional on market gathers operation, but its operational efficiency is still very low, can not go up soil effectively and uniformly, can not realize full-automatic blinding operation, affect the growth of crops.
Therefore, produce a kind of structure simply, easy to operate, the scope of application is wide, automaticity is high, save human resources, work and operational efficiency high, operation continuity, stroke stability strong, earthing is the full-automatic laminating machine of single ridge duplicate rows firmly, has market prospects widely.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of structure simple, easy to operate, the scope of application is wide, automaticity is high, save human resources, work and operational efficiency high, operation continuity, stroke stability by force, earthing is the full-automatic laminating machine of single ridge duplicate rows firmly.
Technical scheme of the present invention is achieved in that the full-automatic laminating machine of a kind of single ridge duplicate rows, comprise bearing, be arranged on the support on bearing, be arranged on the plough of bearing both sides, be arranged on the overlay film backing roll below bearing, the rear side of described bearing is installed with V-shaped stay pipe, the two ends of V-shaped stay pipe are all movably installed with connecting axle, connecting axle is fixedly connected with cross bar, the end of cross bar is flexibly connected with rotary sleeve, rotary sleeve is fixedly connected with road wheel, native plectrum has circumferentially been installed with at road wheel, be installed with inside a native plectrum and connect native female tab, described V-shaped stay pipe is hollow tubular structures, the angle of V-shaped stay pipe is 345 degree, described road wheel and the angle of horizontal plane are 75 degree, road wheel is two, two road wheels are symmetrically distributed in the both sides of V-shaped stay pipe by connecting axle.
Described support is fixedly mounted on bearing by vertical rod, arrange between support and vertical rod and organicly draw supporting linkage, draw at machine the bearing of supporting linkage bottom fixedly mounts and organicly draw auxiliary connecting rod, described plough is movably arranged on the both sides of bearing by plough support bar, and plough support bar is the rod-like structure can doing transverse movement along bearing.
The below of described bearing is installed with overlay film frame, overlay film frame is hollow tubular structures, the first overlay film support bar and the second overlay film support bar is movably installed with in the both sides of overlay film frame, first overlay film support bar and the second overlay film support bar are all provided with overlay film backing roll, overlay film frame is installed with clamp nut, fastening rotating shaft is installed in clamp nut.
The described bottom connecing native female tab is connected with send native support chip, connect native female tab is fixedly mounted on cross bar top by connecing native female tab bracing frame, the medial surface of the medial surface and road wheel that connect native female tab is flexibly connected, be installed with reinforced company's contact pin at the lateral surface of road wheel, the described native support chip that send is can along connecing the groove-like structure doing telescopic moving bottom native female tab.
A described native plectrum is arcuate structure, playing native plectrum is 18,18 are played native plectrum equal distribution at road wheel circumferentially, the lateral surface playing native plectrum is mutually concordant with the lateral surface of road wheel, the medial surface playing native plectrum with connect native female tab and cooperatively interact, described connects native female tab position ramped shaped, and the angle connect between native female tab and road wheel is 50 to 70 to spend.
The front end of described cross bar is installed with movable rod, the bottom of movable rod is provided with pressing wheel, between movable rod and cross bar, coil tension spring is installed, described connecting axle is hollow-core construction, connecting axle offers connecting hole, V-shaped stay pipe offers the fixing hole cooperatively interacted with connecting hole.
The first described overlay film support bar and the second overlay film support bar are L-shaped structure, the first described overlay film support bar and the length of the second overlay film support bar are all not less than 1/2nd of overlay film frame length, and overlay film backing roll is all movably arranged on the inner side of the first overlay film support bar and the second overlay film support bar.
The present invention has following good effect: first, structure of the present invention is simple, easy to operate, product operationally, machinery and automaticity high, greatly save human resources, and change the defect of the existing blinding equipment of tradition, not only can automatically soil be brought to the base portion of lid film, and soil can be taken up, and be transported to the high-end of road wheel along with the rotational automatic of road wheel, and take advantage of a situation and the soil break-in taken up is delivered to the middle part of institute's cover film, realize firmly fixing stable for institute's cover film, decrease because wind plays the risk of film, product is provided with V-shaped stay pipe, the control at angle of inclination can be carried out to road wheel, realize earthing operation automatically in the process run at road wheel, and the spacing between adjustable two road wheels, be applicable to producing on a large scale and using, secondly, the Bracket setting coefficient of stability is high, plough support bar is flexibly connected with support, can according to the spacing between practical operation situation determination plough, facilitate coordinating of plough and overlay film backing roll and road wheel width, realize plough according to practical operation situation to regulate with overlay film backing roll and the flexible corresponding of road wheel, convenient and swift, again, connect the groove assembling structure that native female tab is designed to curvature, effectively a native plectrum is run to the polymerized soil under the unloading of road wheel most significant end, and play native plectrum and be designed to arcuate structure, along with while road wheel clockwise movement, soil can be taken up, and be stored in the groove of himself shape, discharging after finally along the axle center rotary motion of road wheel to most significant end, what realized native plectrum plays native operation automatically, in addition, connect between native female tab and road wheel and arrange angle, facilitate soil according to deadweight automatic blanking, connecting hole and fixing hole cooperatively interact, and the convenient flexible modulation to connecting axle is with fixing, the present invention's entirety substantially increases work and the operational efficiency of laminating machine, solve traditional machinery and need manual operation and the lower drawback of traditional mechanical automaticity, achieve full-automatic control, do not need manually again to carry out reinforcing operation to the film covered, and complete machine cost is low, upper earthwork formula is simple, has good Social and economic benef@.
Accompanying drawing explanation
Fig. 1 is seat structure schematic diagram of the present invention.
Fig. 2 is main TV structure schematic diagram of the present invention.
Fig. 3 is side structure schematic diagram of the present invention.
Fig. 4 is road wheel of the present invention and pressing wheel syndeton schematic diagram.
Fig. 5 is road wheel of the present invention and connects native female tab syndeton schematic diagram.
Fig. 6 is road wheel of the present invention and connecting structure for connecting shaft schematic diagram.
Embodiment
As Fig. 1, 2, 3, 4, 5, shown in 6, the full-automatic laminating machine of a kind of single ridge duplicate rows, comprise bearing 1, be arranged on the support 2 on bearing 1, be arranged on the plough 10 of bearing 1 both sides, be arranged on the overlay film backing roll 8 below bearing 1, the rear side of described bearing 1 is installed with V-shaped stay pipe 11, the two ends of V-shaped stay pipe 11 are all movably installed with connecting axle 25, connecting axle 25 is fixedly connected with cross bar 24, the end of cross bar 24 is flexibly connected with rotary sleeve 23, rotary sleeve 23 is fixedly connected with road wheel 13, native plectrum 14 has circumferentially been installed with at road wheel 13, be installed with inside a native plectrum 14 and connect native female tab 15, described V-shaped stay pipe 11 is hollow tubular structures, the angle of V-shaped stay pipe 11 is 345 degree, described road wheel 13 is 75 degree with the angle of horizontal plane, road wheel 13 is two, two road wheels 13 are symmetrically distributed in the both sides of V-shaped stay pipe 11 by connecting axle 25.
Described support 2 is fixedly mounted on bearing 1 by vertical rod 20, arrange between support 2 and vertical rod 20 and organicly draw supporting linkage 21, draw at machine the bearing 1 of supporting linkage 21 bottom fixedly mounts and organicly draw auxiliary connecting rod 22, described plough 10 is movably arranged on the both sides of bearing 1 by plough support bar 9, plough support bar 9 is the rod-like structure can doing transverse movement along bearing 1.The below of described bearing 1 is installed with overlay film frame 3, overlay film frame 3 is hollow tubular structures, the first overlay film support bar 6 and the second overlay film support bar 7 is movably installed with in the both sides of overlay film frame 3, first overlay film support bar 6 and the second overlay film support bar 7 are all provided with overlay film backing roll 8, overlay film frame 3 is installed with clamp nut 5, fastening rotating shaft 4 is installed in clamp nut 5.The described bottom connecing native female tab 15 is connected with send native support chip 16, connect native female tab 15 is fixedly mounted on cross bar 24 top by connecing native female tab bracing frame 28, the medial surface connecing native female tab 15 is flexibly connected with the medial surface of road wheel 13, be installed with reinforced company's contact pin 12 at the lateral surface of road wheel 13, the described native support chip 16 that send is can along connecing the groove-like structure doing telescopic moving bottom native female tab 15.A described native plectrum 14 is arcuate structure, playing native plectrum 14 is 18,18 are played native plectrum 14 equal distribution at road wheel 13 circumferentially, the lateral surface playing native plectrum 14 is mutually concordant with the lateral surface of road wheel 13, the medial surface playing native plectrum 14 with connect native female tab 15 and cooperatively interact, described connects native female tab 15 ramped shaped, and the angle connect between native female tab 15 and road wheel 13 is 50 to 70 to spend.The front end of described cross bar 24 is installed with movable rod 18, the bottom of movable rod 18 is provided with pressing wheel 17, coil tension spring 26 is installed between movable rod 18 and cross bar 24, described connecting axle 25 is hollow-core construction, connecting axle 25 offers connecting hole 27, V-shaped stay pipe 11 offers the fixing hole 19 cooperatively interacted with connecting hole 27.The first described overlay film support bar 6 and the second overlay film support bar 7 are L-shaped structure, the first described overlay film support bar 6 and the length of the second overlay film support bar 7 are all not less than 1/2nd of overlay film frame 3 length, and overlay film backing roll 8 is all movably arranged on the inner side of the first overlay film support bar 6 and the second overlay film support bar 7.
The present invention is when specifically using, and outside traction power machinery draws supporting linkage 21 and machine to draw auxiliary connecting rod 22 to be interconnected by jockey and machine, plays power traction and stablizes even running.According to condition of construction on the spot, regulate plough support bar 9, the vertical fore-and-aft distance of plough support bar 9 is alignd mutually with the outslope face on two cigarette ridges, ensure that trench digging position is arranged on the outslope side position on two cigarette ridges, simultaneously, adjust the first overlay film support bar 6 and the second overlay film support bar 7, the spacing ensureing between the first overlay film support bar 6 and the second overlay film support bar 7 is greater than the spacing between two plough support bars 9 slightly, and when ensureing film coating operation, two cigarette ridges can all cover by plastic film.Need the spacing of adjustment two road wheels 13 in addition, the spacing ensureing between two road wheels 13 is not less than the distance between the outer of institute's cover film, ensures that road wheel is plastic film all can be utilized soil cover gathering soil.
For completing aforesaid operations operation, first fastening rotating shaft 4 should be rotated counterclockwise, fastening rotating shaft 4 is unclamped from clamp nut 5, and continue upstroke, now the first overlay film support bar 6 and the second overlay film support bar 7 are free to free transverse shifting in the inner chamber of overlay film frame 3, measurement mechanism is utilized to measure spacing between the first overlay film support bar 6 and the second overlay film support bar 7, according to actual cigarette ridge accurate positioning, and ensure that the first overlay film support bar 6 is equal with the distance of overlay film frame 3 edges at two ends position with the second overlay film support bar 7, ensure that the first overlay film support bar 6 and the second overlay film support bar 7 pull open between two parties.After accurate positioning, fastening rotating shaft 4 is turned clockwise, realize fastening rotating shaft 4 and the locked location of clamp nut 5, ensure bottom and first overlay film support bar 6 and the second overlay film support bar 7 rigid contact locking of fastening rotating shaft 4, overlay film backing roll 8 is set with plastic film spool, and pull open one end distance, facilitate during film coating operation and operate.
V-shaped stay pipe 11 is fixedly mounted on bearing 1 rear portion, contrary with direction of traffic, and the center of V-shaped stay pipe 11 and the center of bearing 1, on same straight line, ensure that V-shaped stay pipe 11 fixedly mounts between two parties.The two ends of V-shaped stay pipe 11 are all set with connecting axle 25, and connecting axle 25 and road wheel 13 at right angle setting, between connecting axle 25 and road wheel 13, be provided with rotary sleeve 23, rotary sleeve 23 is fixedly connected with road wheel 13.Meanwhile, native female tab 15 is fixedly mounted on cross bar 24 top by connecing native female tab bracing frame 28 is connect.When road wheel 13 rotary motion, playing native plectrum 14 can be trapped in soil under road wheel self gravitation, when road wheel 13 rotary motion, play native plectrum 14 soil zone be trapped in soil is gone out, and move along the extrados of road wheel 13 along with the rotary motion of road wheel, and bring to the top of road wheel 13 from bottom to top.While road wheel 13 moves, connect native female tab 15 and remain motionless, connect the position geo-stationary of native female tab 15 and road wheel 13, and, connect the opening of native female tab 15 all the time upward, soil can be caught after having facilitated native plectrum 14 to unload soil, and the native support chip 16 of conveying feeding, connect native female tab 15 and send native support chip 16 to be tilted to down, soil can according in the raceway groove between Liang Geyan ridge, self-weight blanking road, realize at trench digging, overlay film, after earthing operation, automatically soil is taken up rear under expect the middle part of the film after overlay film, realize the stable compacting operation in the middle part of plastic film.The marginal position of plastic film and middle part, all by soil compaction, can not be opened by wind, are conducive to cigarette seedling high crop yield stable yields.
After the plastic film that overlay film backing roll 8 lays out and point cantact, the two ends of plastic film need and ground close contact, could realize efficiently completing of earthing operation.The present invention arranges a pair pressing wheel 17, under product initial operating state, plastic film can be pulled open a segment length, and be pressed in the below of pressing wheel 17.Pressing wheel 17 roll trench that position and plough 10 offer on same straight line, can when earthing operation completes, by buried for plastic film in underground, plastic film can not crimping and sideslip simultaneously.Install coil tension spring 26 between movable rod 18 and cross bar 24, pressing wheel 17 can carry out telescopic adjustment according to the actual weight of trench digging bottom surface, there will not be and blocks the generation that plastic film even damages plastic film phenomenon.
Integral device of the present invention is easily manufactured, and cost is low, and compared with legacy equipment, stability strengthens, and work and operational efficiency improve greatly, and traditional plant equipment automaticity is not high, or relies on manually complete film coating operation completely.And traditional equipment once can only carry out overlay film, not only waste of manpower resource to a ridge Yan Long, and wastes plastic film, also add operation and the labour intensity of overlay film.The present invention once can carry out film coating operation to duplicate rows cigarette ridge, single ridge, and be applicable to the scope of application of extensive tobacco leaf planting at present, integrated automation degree is high, has good Social and economic benef@.
Claims (7)
1. the full-automatic laminating machine of single ridge duplicate rows, comprise bearing (1), be arranged on the support (2) on bearing (1), be arranged on the plough (10) of bearing (1) both sides, be arranged on the overlay film backing roll (8) of bearing (1) below, it is characterized in that: the rear side of described bearing (1) is installed with V-shaped stay pipe (11), the two ends of V-shaped stay pipe (11) are all movably installed with connecting axle (25), connecting axle (25) is fixedly connected with cross bar (24), the end of cross bar (24) is flexibly connected with rotary sleeve (23), rotary sleeve (23) is fixedly connected with road wheel (13), native plectrum (14) has circumferentially been installed with at road wheel (13), be installed with in native plectrum (14) inner side and connect native female tab (15), described V-shaped stay pipe (11) is hollow tubular structures, the angle of V-shaped stay pipe (11) is 345 degree, described road wheel (13) is 75 degree with the angle of horizontal plane, road wheel (13) is two, two road wheels (13) are symmetrically distributed in the both sides of V-shaped stay pipe (11) by connecting axle (25).
2. the full-automatic laminating machine of single ridge duplicate rows according to claim 1, it is characterized in that: described support (2) is fixedly mounted on bearing (1) by vertical rod (20), arrange between support (2) and vertical rod (20) and organicly draw supporting linkage (21), draw at machine that the upper fixed installation of the bearing (1) of supporting linkage (21) bottom is organic draws auxiliary connecting rod (22), described plough (10) is movably arranged on the both sides of bearing (1) by plough support bar (9), plough support bar (9) is the rod-like structure can doing transverse movement along bearing (1).
3. the full-automatic laminating machine of single ridge duplicate rows according to claim 1, it is characterized in that: the below of described bearing (1) is installed with overlay film frame (3), overlay film frame (3) is hollow tubular structures, the first overlay film support bar (6) and the second overlay film support bar (7) is movably installed with in the both sides of overlay film frame (3), first overlay film support bar (6) and the second overlay film support bar (7) are all provided with overlay film backing roll (8), overlay film frame (3) is installed with clamp nut (5), fastening rotating shaft (4) is installed in clamp nut (5).
4. the full-automatic laminating machine of single ridge duplicate rows according to claim 1, it is characterized in that: the described bottom connecing native female tab (15) is connected with send native support chip (16), connect native female tab (15) is fixedly mounted on cross bar (24) top by connecing native female tab bracing frame (28), the medial surface connecing native female tab (15) is flexibly connected with the medial surface of road wheel (13), reinforced company's contact pin (12) is installed with at the lateral surface of road wheel (13), the described native support chip (16) that send is can along connecing the groove-like structure doing telescopic moving bottom native female tab (15).
5. the full-automatic laminating machine of single ridge duplicate rows according to claim 1, it is characterized in that: a described native plectrum (14) is arcuate structure, playing native plectrum (14) is 18,18 are played native plectrum (14) equal distribution at road wheel (13) circumferentially, the lateral surface playing native plectrum (14) is mutually concordant with the lateral surface of road wheel (13), the medial surface playing native plectrum (14) with connect native female tab (15) and cooperatively interact, described connects native female tab (15) position ramped shaped, and the angle connect between native female tab (15) and road wheel (13) is 50 to 70 to spend.
6. the full-automatic laminating machine of single ridge duplicate rows according to claim 1, it is characterized in that: the front end of described cross bar (24) is installed with movable rod (18), the bottom of movable rod (18) is provided with pressing wheel (17), coil tension spring (26) is installed between movable rod (18) and cross bar (24), described connecting axle (25) is hollow-core construction, connecting axle (25) offers connecting hole (27), V-shaped stay pipe (11) offers the fixing hole (19) cooperatively interacted with connecting hole (27).
7. the full-automatic laminating machine of single ridge duplicate rows according to claim 3, it is characterized in that: the first described overlay film support bar (6) and the second overlay film support bar (7) are L-shaped structure, the first described overlay film support bar (6) and the length of the second overlay film support bar (7) are all not less than 1/2nd of overlay film frame (3) length, and overlay film backing roll (8) is all movably arranged on the inner side of the first overlay film support bar (6) and the second overlay film support bar (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052142.7A CN104521644B (en) | 2015-02-02 | 2015-02-02 | Single-ridge double-row full-automatic film mulching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052142.7A CN104521644B (en) | 2015-02-02 | 2015-02-02 | Single-ridge double-row full-automatic film mulching machine |
Publications (2)
| Publication Number | Publication Date |
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| CN104521644A true CN104521644A (en) | 2015-04-22 |
| CN104521644B CN104521644B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510052142.7A Expired - Fee Related CN104521644B (en) | 2015-02-02 | 2015-02-02 | Single-ridge double-row full-automatic film mulching machine |
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| CN (1) | CN104521644B (en) |
Cited By (4)
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| CN107494083A (en) * | 2017-10-20 | 2017-12-22 | 宣威市民科农业科技开发有限公司 | A kind of profiling film covering device |
| CN108293537A (en) * | 2018-04-27 | 2018-07-20 | 芜湖华诚农业技术有限公司 | A kind of agricultural planting plastic mulching machine |
| CN110140570A (en) * | 2019-06-26 | 2019-08-20 | 河南农业大学 | A kind of full-automatic plant draws seedling envelope hole equipment |
| CN113597949A (en) * | 2021-09-22 | 2021-11-05 | 张卫民 | Land laminating machine for agricultural seedling culture and use method thereof |
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| CN204466446U (en) * | 2015-02-02 | 2015-07-15 | 平顶山市烟草公司汝州市分公司 | The full-automatic laminating machine of a kind of single ridge duplicate rows |
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| KR101169320B1 (en) * | 2012-01-18 | 2012-07-30 | 주식회사 불스 | Vinyl covering apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110140570A (en) * | 2019-06-26 | 2019-08-20 | 河南农业大学 | A kind of full-automatic plant draws seedling envelope hole equipment |
| CN110140570B (en) * | 2019-06-26 | 2024-03-22 | 河南农业大学 | Full-automatic seedling picking and dibbling equipment for plants |
| CN113597949A (en) * | 2021-09-22 | 2021-11-05 | 张卫民 | Land laminating machine for agricultural seedling culture and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104521644B (en) | 2017-01-18 |
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