CN106416852A - Automatic film laminating device - Google Patents
Automatic film laminating device Download PDFInfo
- Publication number
- CN106416852A CN106416852A CN201611063218.7A CN201611063218A CN106416852A CN 106416852 A CN106416852 A CN 106416852A CN 201611063218 A CN201611063218 A CN 201611063218A CN 106416852 A CN106416852 A CN 106416852A
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- CN
- China
- Prior art keywords
- film
- main frame
- ridging
- support
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
- A01G13/0275—Films
Abstract
The invention provides an automatic film laminating device, and belongs to the field of agricultural machinery equipment. The device comprises a first hydraulic cylinder and a main frame; one end of the first hydraulic cylinder is arranged on a walking mechanism, and the other end is rotatably connected with the main frame; the main frame is rotatably mounted on the walking mechanism, a film laminating rod is arranged on the main frame, a film roll is sleeved on the film laminating rod, and a film pressing bracket and a ridging bracket are arranged on each of two ends of the film roll; a film pressing wheel is rotatably arranged on the film pressing bracket, the film pressing wheel is located at the inner side of the end part of the film roll, a ridging wheel is rotatably arranged on the ridging bracket, and the ridging wheel is located at the outside of the end part of the film roll; in the film laminating process of the automatic film laminating device, the film pressing wheel and the riding wheel are behind the film roll, and the bottoms of the two are below the film roll; the device further comprises a controller and a pressure sensor, the pressure sensor is arranged on the film pressing bracket and located at the part of the file pressing bracket in contact with the film pressing wheel. The device provided by the invention can be self-adjusted in longitudinal and can be suitable for ridge fields at different heights, and is economic and practical.
Description
【Technical field】
The present invention relates to agricultural mechanical equipment field, particularly to a kind of automatization film covering device.
【Background technology】
The advantages of dry crop plastic-film-covered cultivation technology in agricultural production is because keeping soil moisture, improve the soil moisture
It is widely used, but conventional overlay film work is completed by artificial operation, operator has to bend over always to work, and work is strong
Degree is big, and work efficiency is low, and operator's easy damaged waist, and therefore, laminating machine arises at the historic moment.But, current laminating machine is tied
Structure more fixing it is impossible to do corresponding adjustment according to situations such as the width of furrow field, height, its scope of application is narrower, and practicality is not
By force, and, adjustable laminating machine is usually to adjust manually, more bothers, automaticity is more low.
【Content of the invention】
In view of the above is it is necessary to provide a kind of automatization film covering device, this automatization's film covering device can overlay film, and
Can be in longitudinal self-regulation so that film covering device be applied to the furrow field of differing heights, its range is wider, relatively inexpensive reality
With.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is：A kind of automatization film covering device, including the first liquid
Cylinder pressure and main frame, described first hydraulic cylinder one end is arranged in walking mechanism, and the other end is rotatably connected described main frame；Described
Main frame is also rotatably mounted in walking mechanism, which is provided with overlay film bar, described overlay film bar is set with film rolling, described thin film
Volume two ends are mounted on stamper support and ridging support；It is rotatablely equipped with pressing wheel, described pressing wheel position on described stamper support
Ridging wheel is rotatablely equipped with the inner side of film rolling end, described ridging support, described ridging wheel is located at film rolling end
Outside, and the diameter with diameter greater than pressing wheel of described ridging wheel；In described automatization film covering device coating process, described press mold
The rear all falling within film rolling is taken turns in wheel and ridging, and both bottoms are also located at below described film rolling；
Also include controller and pressure transducer, described pressure transducer is arranged on stamper support, and be located at described pressure
Membrane support contact pressing wheel part, for detecting the pressure that described pressing wheel is subject to, and generate corresponding induced signal send out in
The described controller being attached thereto, described controller drives the first hydraulic cylinder fortune being connected with controller further according to this induced signal
OK, so that main frame is driven around the place's phase that is rotatably connected of main frame and walking mechanism by the telescopic action of described first hydraulic cylinder
Walking mechanism is rotated.
Further, two stamper support are mounted on described pressure transducer, described pressure transducer props up positioned at press mold
Bridge joint touches the bottom of the part of pressing wheel.
Further, described pressing wheel and ridging wheel be arranged in parallel, and are vertically arranged with described film rolling.
Further, the bottom of described pressing wheel is located at the top of ridging wheel bottom.
Further, described stamper support and ridging support are all slidably mounted on main frame, and both of which connect setting
Second hydraulic cylinder on described main frame, and towards in the middle part of away from film rolling or close in the presence of described second hydraulic cylinder
Slide relative to main frame in direction in the middle part of film rolling.
Further, the route of described stamper support and ridging bracket slide is parallel to film rolling axis direction.
Further, described pressing wheel is arranged on stamper support by connecting rod, and described connecting rod is slidably connected press mold
Support, its slip route is parallel to described film rolling axis direction.
Further, described connecting rod is installed one end of pressing wheel and is provided with vibration abatement, described vibration abatement also by
Shockproof fix bar is arranged on main frame.
Further, described main frame is additionally provided with the support that drips, the described support that drips is located at the upper of described overlay film bar
Side, is provided with pipe dish of dripping thereon, described drip pipe dish and be connected with the holder pivots that drip, and positioned at described film rolling two ends it
Between, and its pivot center is parallel to the axis of described film rolling.
Further, described main frame is additionally provided with catheter holder, described catheter holder is located at overlay film bar and props up with dripping
Between frame, it is arranged with conduit cylinder thereon, described conduit cylinder passes through pipe dish place plane of dripping, and perpendicular with this plane.
The present invention compared with prior art, has the advantages that：
1. main frame is rotatably connected by the present invention with walking mechanism, and drives main frame relative to vehicle with walking machine with first hydraulic cylinder
Structure spins upside down so that set film rolling, for press membrane pressing wheel and can by soil cover in thin film both sides
Ridging wheel can according to the highly automated adjustment of furrow field each height from the ground it is achieved that described automatization film covering device vertical
To adjustment, beneficial to the more preferable overlay film of described automatization film covering device and the scope of application that improves it, be also convenient for simultaneously described automatically
Change the transport of film covering device.
2. the present invention to control first hydraulic cylinder automatic running also by setting controller and pressure transducer, and then drives
Main frame rotates automatically, and its automaticity is higher, easy and simple to handle, and practicality is good.
【Brief description】
Fig. 1 is that a kind of automatization of present invention film covering device is arranged on the structure diagram in walking mechanism.
Fig. 2 is a kind of perspective view of automatization of present invention film covering device.
Fig. 3 is the front view of Fig. 2.
Fig. 4 is Fig. 3 is right view.
Main element symbol description
In figure, walking mechanism 100, first hydraulic cylinder 1, main frame 2, overlay film bar 3, film rolling 31, kelly 32, ridging support
4th, ridging wheel 41, stamper support 5, pressing wheel 51, connecting rod 52, second hydraulic cylinder 6, vibration abatement 7, shockproof fix bar 71, drip
Water support 8, pipe dish of dripping 81, catheter holder 9, conduit cylinder 91, clamp 92.
Following specific embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
【Specific embodiment】
Refer to Fig. 1 to Fig. 4, in a kind of better embodiment of the present invention, a kind of automatization film covering device, including
One hydraulic cylinder 1, a main frame 2, a controller and pressure transducer.First hydraulic cylinder 1 connects controller, and its one end is installed and is expert at
Walk in mechanism 100, the other end is rotatably connected main frame 2.Main frame 2 is rotatably mounted in walking mechanism 100, which is provided with one and covers
Film bar 3, overlay film bar 3 is set with a film rolling 31, and film rolling 31 two ends are mounted on a stamper support 5 and a ridging support 4；
One pressing wheel 51 is rotatablely equipped with stamper support 5, pressing wheel 51 is located at the inner side of film rolling 31 end, and ridging support 4 turns
Dynamic a ridging wheel 41 is installed, ridging wheel 41 is located at the outsides of film rolling 31 end, and wheel 41 of earthing up with diameter greater than pressing wheel
51 diameter；In described automatization film covering device coating process, 41 rears all falling within film rolling 31 are taken turns in pressing wheel 51 and ridging,
And both bottoms are also located at below film rolling 31.Pressure transducer is arranged on stamper support 5, and is located at stamper support 5
The part of contact pressing wheel 51, for detecting the pressure that pressing wheel 51 is subject to, and generates corresponding induced signal and sends out in connecting therewith
The described controller connecing, controller drives first hydraulic cylinder 1 to run further according to this induced signal, with by first hydraulic cylinder 1
Telescopic action drives main frame 2 to rotate relative to walking mechanism 100 around main frame 2 with the place of being rotatably connected of walking mechanism 100.
The present invention passes through main frame 2 is rotatably connected with walking mechanism 100, and drives main frame 2 phase with first hydraulic cylinder 1
Walking mechanism 100 is spun upside down, and controls the operation of first hydraulic cylinder 1 so that the anglec of rotation of main frame 2 obtains with controller
To automatically controlling, it is to avoid the possibility that main frame 2 excessively damages because of rotation occurs, wherein, controller is by pressure transducer
Induced signal carry out instruct control, its control principle be by pressing wheel 51 and stamper support 5 at pressure transducer sense
Given the pressure that sub- membrane support brings by pressing wheel 51 because it contacts ground, controller is further according to this Stress control first hydraulic cylinder
Whether 1 continue to run with or out of service, i.e. when controller receives the induced signal that pressure transducer transmits, controller
Control first hydraulic cylinder 1 is out of service, and now, pressing wheel 51 is gently compressed on thin film, and wheel 41 of earthing up gos deep in soil, because
This, which can make pressing wheel 51 be compressed on thin film, avoid pressing wheel 51 rolling process to cut bad thin film simultaneously.And in order that two
Pressing wheel 51 all can be with film contacts, and the present invention is mounted on pressure transducer on two stamper support 5, and by pressure sensing
Device is arranged on the bottom that stamper support 5 contacts the part of pressing wheel 51, the pressure being brought with more preferable sensing pressing wheel 51.Separately
Outward, in order that the stable upset of main frame 2, the present embodiment is provided with two first hydraulic cylinders 1, and this two first hydraulic cylinder 1 sets up separately
Main frame 2 both sides.
Further, the stamper support 5 of the present invention and ridging support 4 are all slidably mounted on main frame 2, and both of which is even
Connect the second hydraulic cylinder 6 being arranged on main frame 2, and in the presence of second hydraulic cylinder 6 towards away from film rolling 31 middle part or
Slide relative to main frame 2 in direction near film rolling 31 middle part, the route of both slips parallel to film rolling 31 axis direction, with
Laterally adjusting of described automatization film covering device is realized with the slip of the ridging relative main frame 2 of support 4 by stamper support 5,
So that the pressing wheel 51 on stamper support 5 and the ridging wheel 41 earthed up on support 4 can be (i.e. thin according to the length of film rolling 31
The width of film) adjust both lateral separations with respect to film rolling 31, make described automatization film covering device coating process, pressing wheel 51
Can be located on thin film, and wheel 41 of earthing up is located at film outside.Preferably, main frame 2 is provided with two second hydraulic cylinders 6, often
One second hydraulic cylinder 6 is all connected with the stamper support 5 of the same side, ridging support 4, and can drive stamper support 5 and ridging
Frame 4 film rolling 31 relatively is slided, and then realizes stamper support 5 and the adjust automatically of ridging support 4, makes stamper support 5 simultaneously
It is fixed with ridging support 4.
Further, in the present invention, the bottom of pressing wheel 51 is located at the top of ridging wheel 41 bottoms, i.e. make pressing wheel
51 diameter is less than the diameter that ridging takes turns 41, so that pressing wheel 51 is in light press membrane, deeply soil is interior for ridging wheel 41, and then
It is easy to cover at thin film two ends by soil, pressing wheel 51 will not cut bad thin film simultaneously；Pressing wheel 51 and ridging wheel 41 be arranged in parallel, and
It is vertically arranged with film rolling 31, and pressing wheel 51 is arranged on stamper support 5 by a connecting rod 52, this connecting rod 52 is slided even
Connect stamper support 5, its slip route parallel to film rolling 31 axis direction so that pressing wheel 51 can according to user need adjust
Save position on thin film for the described automatization film covering device coating process pressing wheel 51.In addition, connecting rod 52 installs pressing wheel 51
One end be provided with a vibration abatement 7, this vibration abatement 7 is arranged on main frame 2 also by shockproof fix bar 71, i.e. shockproof
Fix bar 71 one end is arranged in connecting rod 52, and the other end connects main frame 2 it is preferred that shockproof fix bar 71 is arranged on press mold
Above wheel 51, and its one end being connected with main frame 2 is arranged at some fixed vias that main frame 2 interval opens up, to pass through
Fixed via fixes shockproof fix bar 71, connecting rod 52 and pressing wheel 51, and wherein, the line of all fixed vias is parallel to thin film
Roll up 31 axis directions, to mate the slip of connecting rod 52 stamper support 5 relatively；In the present embodiment, vibration abatement 7 is shock-absorbing bullet
Spring, it is used for assisting pressing wheel 51 in the rolling of coating process.
Further, in order to prevent coating process film rolling 31 from occurring, along its axis direction, larger movement, the present invention occur
Two kellies 32 are also provided with main frame 2, refer to Fig. 2.Two kellies 32 set up separately at film rolling 31 two ends, and are located at this two ends
Outside, its one end connect main frame 2, the other end connect overlay film bar 3 to limit the movement of film rolling 31.Preferably, kelly 32
It is arranged on main frame 2 by stamper support 5, it is to be slidably connected with stamper support 5, can be relatively main along stamper support 5
Framework 2 slides, and this slip route is parallel to film rolling 31 axis, in addition, the one end connecting stamper support 5 in kelly 32 also sets up
There is the first locking device, so that kelly 32 can be stably fixed on stamper support 5 when not sliding；Kelly 32 and overlay film bar
3 connection is to be slidably connected, in order to the installation of the detachable of overlay film bar 3 and film rolling 31.
In the present invention, main frame 2 is added is provided with a water support 8, refers to Fig. 2 to Fig. 4.This support 8 that drips is located at
The top of overlay film bar 3, is provided with pipe dish 81 of dripping thereon, and pipe dish of dripping 81 is rotated with the support 8 that drips and is connected, and is located at film rolling
Between 31 two ends, and its pivot center is parallel to the axis of film rolling 31；This pipe dish 81 of dripping is entwined by weep pipe, can
Weep pipe is made together to cover on furrow field with thin film in described automatization's film covering device overlay film, now, weep pipe is located at thin film
And furrow field between；The design of which makes overlay film and laying weep pipe carry out simultaneously, beneficial to watering of later stage, can subtract meanwhile
The workload of few user.Preferably, the support 8 that drips is detachable, the pipe dish so that support 8 that drips can be pulled down and drip when not in use
81 replacing；For the ease of the detachable of the support 8 that drips and be fixed on main frame 2, support 8 one end of dripping is arranged on main frame
At 2 fixing holes that drip opening up, and it is provided with the second locking device for the fixing support 8 that drips in this place, drip support 8
What the other end was placed on that main frame 2 opens up drips in groove.
Further, refer to Fig. 4, in order to promote weep pipe preferably to cover on furrow field with thin film, the present invention is leading
Also setting up on framework 2 has catheter holder 9, and this catheter holder 9 is located at overlay film bar 3 and drips between support 8, is arranged with conduit thereon
Cylinder 91, this conduit cylinder 91 is used as the guiding of weep pipe it is preferable that conduit cylinder 91 is located in front of overlay film bar 3, in order to incite somebody to action
Weep pipe is directed at overlay film bar 3, and gives weep pipe buffering, and then so that weep pipe is preferably laid on furrow field with thin film.
It is furthermore preferred that catheter holder 9 is detachable, and two clamps 92 are installed thereon, two clamps 92 set up separately at the two ends of conduit cylinder 91,
And do not contact with conduit cylinder 91, for the range of activity of restricted conduit cylinder 91, place conduit cylinder 91 and arbitrarily move.
The using method of described automatization film covering device is as follows：First, film rolling 31 is installed on overlay film bar 3, and pass through
Second hydraulic cylinder 6 adjusts pressing wheel 51 with the position of ridging wheel 41 relative film rolling 31 so that pressing wheel 51 is located at film rolling 31
Inner side, ridging wheel 41 are located at outside film rolling 31；The support 8 that drips, pipe dish of dripping 81 and catheter holder 9 are installed again, and make to drip
Pipe dish 81 and conduit cylinder 91 are respectively positioned in the range of film rolling 31 middle part region；Then, weep pipe in pipe dish 81 of dripping
Free end contact and be placed on conduit cylinder 91, film rolling 31 successively towards walking mechanism 100 side, and extend to thin film from
By the bottom held；Finally, open first hydraulic cylinder 1, body frame downwardly turns over up to pressing wheel 51 under the drive of first hydraulic cylinder 1
It is compressed on thin film, after pressure transducer experiences the pressure that pressing wheel 51 brings, generate corresponding induced signal and send out in control
Device processed, controller control first hydraulic cylinder 1 is out of service, and now, the preparation of described automatization film covering device completes, after
By walking mechanism 100 drive move ahead can on furrow field film laying.
The present invention can adjust described automatization film covering device from vertical and horizontal so that described automatization film covering device
More preferably more smoothly thin film is covered on furrow field, its structure is simple, and easy to use, practicality is good.
Described above is the detailed description for the preferable possible embodiments of the present invention, but embodiment is not limited to this
Bright patent claim, the equal change being completed under the technical spirit suggested by all present invention or modification change, all should belong to
In the covered the scope of the claims of the present invention.
Claims (10)
1. a kind of automatization film covering device, including first hydraulic cylinder and main frame it is characterised in that：Described first hydraulic cylinder one end
It is arranged in walking mechanism, the other end is rotatably connected described main frame；Described main frame is also rotatably mounted in walking mechanism, its
It is provided with overlay film bar, described overlay film bar is set with film rolling, described film rolling two ends are mounted on stamper support and ridging
Frame；Pressing wheel is rotatablely equipped with described stamper support, described pressing wheel is located at the inner side of film rolling end, described ridging support
On be rotatablely equipped with ridging wheel, described ridging wheel be located at film rolling end outside, and described ridging wheel with diameter greater than press mold
The diameter of wheel；In described automatization film covering device coating process, the rear all falling within film rolling is taken turns in described pressing wheel and ridging, and
And both bottoms are also located at below described film rolling；
Also include controller and pressure transducer, described pressure transducer is arranged on stamper support, and prop up positioned at described press mold
Bridge joint touches the part of pressing wheel, for detecting the pressure that described pressing wheel is subject to, and generates corresponding induced signal and sends out in therewith
The described controller connecting, described controller drives the first hydraulic cylinder being connected with controller to run further according to this induced signal,
To drive main frame relative with the place that is rotatably connected of walking mechanism around main frame by the telescopic action of described first hydraulic cylinder
Walking mechanism rotates.
2. automatization as claimed in claim 1 film covering device it is characterised in that：Described pressure is mounted on two stamper support
Sensor, described pressure transducer is located at the bottom that stamper support contacts the part of pressing wheel.
3. automatization as claimed in claim 1 film covering device it is characterised in that：Described pressing wheel and ridging wheel be arranged in parallel,
And be vertically arranged with described film rolling.
4. automatization as claimed in claim 1 film covering device it is characterised in that：The bottom of described pressing wheel is located at ridging wheel bottom
The top in portion.
5. automatization as claimed in claim 1 film covering device it is characterised in that：Described stamper support and ridging support all slide
It is arranged on main frame, and second hydraulic cylinder on described main frame for the both of which connect setting, and in described second hydraulic cylinder
In the presence of towards away from the main frame slip relatively of the direction in the middle part of film rolling or in the middle part of the film rolling.
6. automatization as claimed in claim 5 film covering device it is characterised in that：Described stamper support and bracket slide of earthing up
Route is parallel to film rolling axis direction.
7. automatization as claimed in claim 1 film covering device it is characterised in that：Described pressing wheel is arranged on pressure by connecting rod
On membrane support, described connecting rod is slidably connected stamper support, and its slip route is parallel to described film rolling axis direction.
8. automatization as claimed in claim 7 film covering device it is characterised in that：One end that described connecting rod installs pressing wheel sets
It is equipped with vibration abatement, described vibration abatement is arranged on main frame also by shockproof fix bar.
9. described automatization's film covering device as arbitrary in claim 1-8 it is characterised in that：It is additionally provided with described main frame and drip
Water support, the described support that drips is located at the top of described overlay film bar, is provided with pipe dish of dripping thereon, described drip pipe dish and drip
Holder pivots connect, and are located between described film rolling two ends, and its pivot center is parallel to the axis of described film rolling.
10. automatization as claimed in claim 9 film covering device it is characterised in that：It is additionally provided with conduit on described main frame to prop up
Frame, described catheter holder is located at overlay film bar and drips between support, is arranged with conduit cylinder thereon, and described conduit cylinder passes through and drips
Water pipe disk place plane, and perpendicular with this plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611063218.7A CN106416852A (en) | 2016-11-28 | 2016-11-28 | Automatic film laminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611063218.7A CN106416852A (en) | 2016-11-28 | 2016-11-28 | Automatic film laminating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106416852A true CN106416852A (en) | 2017-02-22 |
Family
ID=58218811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611063218.7A Withdrawn CN106416852A (en) | 2016-11-28 | 2016-11-28 | Automatic film laminating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106416852A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106827555A (en) * | 2017-03-28 | 2017-06-13 | 福州莱斯特塑料焊接科技有限公司 | A kind of facade welding machine film laminator and its application method |
| CN110268822A (en) * | 2019-07-31 | 2019-09-24 | 石河子市鑫昌盛农机有限公司 | Automatic control seeder |
| CN110268820A (en) * | 2019-07-25 | 2019-09-24 | 长沙学院 | Small push Automatic plough alley soil all-in-one machine |
| CN111675558A (en) * | 2020-07-16 | 2020-09-18 | 山东生态家园环保股份有限公司 | Automatic film-coating type aerobic fermentation device and use method thereof |
| CN111955249A (en) * | 2020-09-02 | 2020-11-20 | 祁东纯之绿食品有限公司 | Plastic mulching equipment for daylily planting |
| CN114766265A (en) * | 2022-05-25 | 2022-07-22 | 杨凌职业技术学院 | Protective farming tectorial membrane trompil device |
-
2016
- 2016-11-28 CN CN201611063218.7A patent/CN106416852A/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106827555A (en) * | 2017-03-28 | 2017-06-13 | 福州莱斯特塑料焊接科技有限公司 | A kind of facade welding machine film laminator and its application method |
| CN106827555B (en) * | 2017-03-28 | 2022-12-13 | 福州莱斯特塑料焊接科技有限公司 | Vertical face welding machine film pressing machine and using method thereof |
| CN110268820A (en) * | 2019-07-25 | 2019-09-24 | 长沙学院 | Small push Automatic plough alley soil all-in-one machine |
| CN110268822A (en) * | 2019-07-31 | 2019-09-24 | 石河子市鑫昌盛农机有限公司 | Automatic control seeder |
| CN111675558A (en) * | 2020-07-16 | 2020-09-18 | 山东生态家园环保股份有限公司 | Automatic film-coating type aerobic fermentation device and use method thereof |
| CN111955249A (en) * | 2020-09-02 | 2020-11-20 | 祁东纯之绿食品有限公司 | Plastic mulching equipment for daylily planting |
| CN114766265A (en) * | 2022-05-25 | 2022-07-22 | 杨凌职业技术学院 | Protective farming tectorial membrane trompil device |
| CN114766265B (en) * | 2022-05-25 | 2024-02-06 | 杨凌职业技术学院 | Protective cultivation tectorial membrane trompil device |
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Application publication date: 20170222 |
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| WW01 | Invention patent application withdrawn after publication |