A covering device for seedlings

Abstract

The present application relates to a kind of film covering device in seedling stage, including bracket, two film pressing assembly and two soil cutting assembly, two film pressing assembly all include film pressing roller, two soil cutting assembly all include vertical linear drive and soil cutting group, the left and right ends of bracket are all fixedly connected with soil guide groove, two soil guide grooves are respectively opened to corresponding soil cutting group towards front, and two soil guide grooves are all inclined to be arranged, and high end is all connected with the soil storage groove of upward opening, the groove top of two soil storage grooves is communicated with corresponding soil guide groove, and the groove wall is mutually through opening and forms the soil outlet of corresponding groove bottom, two soil storage grooves are all fixedly connected with the soil guide plate of one end communication corresponding soil outlet, the other end of two soil guide plates is all located in the rear of corresponding film pressing roller, and higher than corresponding film pressing roller.The present application can improve the technical problem that film covering device can not effectively push, transport mud when mud in prior art can exist hardening phenomenon, influence the effect of mulch soil pressing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural mulching machine, in particular to a kind of mulching device in seedling stage. BACKGROUND

[0002] Agricultural seedling is an important link of agricultural production, which can improve the survival rate and yield of crops by keeping young seedlings warm and moist. In the process of seedling, mulching is a commonly used technical means, which can maintain soil humidity, improve soil temperature, inhibit weed growth and reduce the occurrence of pests and diseases, thereby providing a good growing environment for young seedlings.

[0003] In the prior art, although the mulching film can be laid by the mulching machine, the soil can be pushed and pressed at the end of the mulching film by the soil retaining disc, and the soil can be transported to the middle of the mulching film by the soil conveying mechanism to press the middle of the mulching film; but in actual use, different farmland soil conditions differ greatly, when encountering soil hardening, the soil retaining disc may not be able to effectively collect soil, and the soil conveying mechanism may not be able to effectively transport soil, affecting the effect of mulching film pressing soil. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a kind of mulching device in seedling stage to improve the technical problem that the mulching device may not be able to effectively push and transport soil when the soil may exist hardening phenomenon in the prior art, affecting the effect of mulching film pressing soil.

[0005] The present application is achieved by the following technical scheme:

[0006] A kind of mulching device in seedling stage, including bracket, two film pressing assemblies and two soil cutting assemblies, two film pressing assemblies are respectively arranged at the left and right ends of the bracket, and each includes a film pressing roller rotatably connected to the bracket, the film pressing roller is used to press the end of the mulching film, two soil cutting assemblies are respectively arranged at the left and right ends of the bracket, and each includes a vertical linear drive installed on the bracket and a soil cutting plate group drivingly connected to the driving end of the vertical linear drive, the driving end of the vertical linear drive extends vertically downward, the left and right ends of the bracket are each fixedly connected with a soil guide groove, the two soil guide grooves are respectively open to the corresponding soil cutting plate group, and the two soil guide grooves are each inclinedly arranged, and the high end is connected with a soil storage groove open upward, the groove opening of the two soil storage grooves is connected to the groove top of the corresponding soil guide groove, the groove wall is open to form a soil outlet connected to the corresponding groove bottom, the two soil storage grooves are each fixedly connected with a soil guide plate having one end connected to the corresponding soil outlet, and the other end of the two soil guide plates is located behind the corresponding film pressing roller and is higher than the corresponding film pressing roller.

[0007] Further, each of the two cutting floor groups comprises a plurality of longitudinal plates arranged in parallel and at intervals, a plurality of transverse plates arranged in parallel and at intervals, and a plate frame fixedly connected to the upper ends of the longitudinal plates and the transverse plates, each of the longitudinal plates extends in the front-rear direction, each of the transverse plates extends in the left-right direction, and each of the transverse plates is located in front of the longitudinal plates, each of the longitudinal plates is located in front of the earth guide groove, and the plate frame is drivingly connected to the driving end of the vertical linear driving member.

[0008] Further, each of the two cutting floor groups further comprises a soil scraping sleeve fixedly connected to the bracket, the soil scraping sleeve is provided with a plurality of plate holes extending longitudinally and transversely, each of the longitudinal plates is adapted to and vertically slidably connected to a corresponding longitudinally extending plate hole, and each of the transverse plates is adapted to and vertically slidably connected to a corresponding transversely extending plate hole.

[0009] Further, the mouth of each of the two earth storage grooves is connected with a soil filter plate, and the soil filter plate is connected to the top of the corresponding earth guide groove.

[0010] Further, each of the two soil filter plates is arranged obliquely, the low end of each of the two soil filter plates is fixedly connected to the high end of the corresponding earth guide groove, the low end of each of the two soil filter plates is fixedly connected with a lower rotating shaft slidably connected to the earth storage groove at both ends, and the high end of each of the two soil filter plates is fixedly connected with an upper rotating shaft rotatably connected to the earth storage groove at both ends, and the earth guide groove is fixedly connected with a vibrating member for driving the lower rotating shaft to move about the upper rotating shaft as the axis.

[0011] Further, the wall of the earth storage groove is provided with two arc-shaped grooves, the two arc-shaped grooves are coaxial with the upper rotating shaft, the two ends of the lower rotating shaft are slidably connected to the two arc-shaped grooves respectively, and the two ends of the lower rotating shaft are fixedly connected with a lifting plate; the rear end of the bracket is rotatably connected with an axle, the two ends of the axle are fixedly connected with support wheels; the vibrating member comprises an eccentric wheel rotatably connected to the earth storage groove and a pulley set coaxially fixedly connected to the axis of the eccentric wheel, the wheel surface of the eccentric wheel abuts against the lower side of the lifting plate, and the other pulley of the pulley set is coaxially fixedly connected to the axle.

[0012] Further, each of the two film pressing assemblies further comprises a rear film pressing driving assembly, each of the two rear film pressing driving assemblies comprises a film pressing frame rotatably connected to the lower end of a corresponding film pressing roller, a plurality of rear guide rods fixedly connected to the upper end of the film pressing frame, and a rear screw rotatably connected to the upper end of the film pressing frame, and the upper end of the rear screw is threadedly connected to the bracket.

[0013] Further, the film covering device further comprises two film groove forming assemblies respectively installed at left and right ends of the bracket, both of the film groove forming assemblies comprise forwardly opened earth scraping boxes, bottom walls of the earth scraping boxes are in arc plate structure and are downwardly inclined, the earth scraping boxes are respectively located at front of the corresponding pressure film rollers, and the earth scraping boxes are used for being installed at lower sides of the mulching films.

[0014] Further, both of the earth scraping boxes are formed with side openings at opposite openings, and both of the earth scraping boxes are fixedly connected with earth guiding boxes, the earth guiding boxes are forwardly opened and are opened along left and right directions, and one end of the earth guiding boxes is in communication with the corresponding side opening, and the other end of the earth guiding boxes is located at front of the corresponding cutting floor group.

[0015] Further, both of the film groove forming assemblies further comprise front earth scraping driving assemblies, the front earth scraping driving assemblies comprise front guide rods and front screws which are vertically arranged, lower ends of the front guide rods and the front screws are fixedly connected to upper sides of the earth scraping boxes, upper ends of the front guide rods and the front screws are vertically and slidably connected to the bracket, and upper ends of the front screws are threadedly connected with a plurality of limiting nuts, and the limiting nuts are distributed on upper and lower sides of the bracket.

[0016] The beneficial effects of the present application are as follows:

[0017] The film covering device in the seedling raising period drives the corresponding cutting floor group to move back and forth in the vertical direction through the vertical linear driving member, so that the cutting floor group cuts the soil in the forward direction of the earth guiding groove, reduces the lumping of the soil, and with the movement of the earth guiding groove, the lower end of the earth guiding groove scrapes the cut soil and guides it into the earth storage groove, the soil in the earth storage groove slides out of the earth outlet and is guided by the earth guiding plate to slide to the rear side of the corresponding pressure film roller, and falls onto the mulching film pressed by the pressure film roller, so as to realize the compaction of the end of the mulching film, so as to solve the technical problem that the film covering device cannot effectively push and transport the soil when the soil is lumped, and affects the effect of soil compaction.

[0018] Other advantages, objects, and features of the present application will be apparent to those skilled in the art from the following specification, which is to be taken in conjunction with the accompanying drawings. The objects and other advantages of the present application can be achieved and obtained by means of the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a first perspective view of the present application;

[0020] Figure 2 is a first perspective view of the present application; Figure 1 is a local enlarged view of part A in the figure;

[0021] Figure 3 Structure diagram of the bracket of the present application;

[0022] Figure 4 Axonometric view of the second perspective of the present application;

[0023] Figure 5 Structure diagram of the present application Figure 4 Partial enlarged view of the B part of the present application;

[0024] Figure 6 Structure diagram of the present application Figure 4 of the present application;

[0025] Figure 7 Structure diagram of the present application Figure 6 Partial enlarged view of the C part of the present application;

[0026] Figure 8 Partial exploded view of the soil cutting assembly of the present application;

[0027] Figure 9 Structure diagram of the present application, mainly used to show the soil guide groove and its related structures;

[0028] Figure 10 Structure diagram of the present application Figure 9 Partial enlarged view of the D part of the present application.

[0029] In the figure: 1, mulch film; 2, bracket; 21, wheel shaft; 22, supporting wheel; 23, mounting frame; 231, square tube; 232, connecting block; 233, shaft rod; 234, intermediate nut; 235, conical ring; 3, film pressing roller; 4, rear film pressing driving assembly; 41, film pressing frame; 42, rear guide rod; 43, rear screw rod; 5, vertical linear driving member; 6, soil cutting plate assembly; 61, longitudinal plate; 62, transverse plate; 63, plate frame; 64, soil scraping sleeve; 641, plate hole; 7, soil guide groove; 71, soil storage groove; 711, soil outlet; 712, arc-shaped groove; 72, soil guide plate; 73, soil filter plate; 731, lower rotating shaft; 7311, lifting plate; 732, upper rotating shaft; 74, vibrating member; 741, eccentric wheel; 742, pulley set; 8, soil scraping box; 81, side opening; 82, soil guide box; 83, connecting shaft; 9, front soil scraping driving assembly; 91, front guide rod; 92, front screw rod; 93, limiting nut. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the application without creative labor fall within the scope of the application.

[0032] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] In the above description of the application, it should be noted that the terms "one side", "the other side" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] In addition, the term "same" and the like do not mean that the parts must be absolutely the same, but there can be slight differences. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly inclined.

[0035] Please refer to Figures 1-10The application provides a technical scheme: a film covering device for seedling stage, comprising a bracket 2, two film pressing assemblies and two soil cutting assemblies, the two film pressing assemblies are respectively arranged at left and right ends of the bracket 2 and each comprises a film pressing roller 3 rotatably connected to the bracket 2, the film pressing roller 3 is used for pressing the end of a film 1, the two soil cutting assemblies are respectively arranged at left and right ends of the bracket 2 and each comprises a vertical linear driving member 5 mounted on the bracket 2 and a soil cutting plate group 6 drivingly connected to a driving end of the vertical linear driving member 5, the driving end of the vertical linear driving member 5 extends vertically downward, left and right ends of the bracket 2 are fixedly connected with soil guide grooves 7, the two soil guide grooves 7 are respectively open forward to the corresponding soil cutting plate group 6, and the two soil guide grooves 7 are both arranged obliquely, and the high end of each is connected with a soil storage groove 71 which is open upward, the groove opening of the two soil storage grooves 71 is connected with the groove top of the corresponding soil guide groove 7, the groove wall is open to each other to form a soil outlet 711 which is connected with the corresponding groove bottom, and the two soil storage grooves 71 are fixedly connected with soil guide plates 72 which are connected with the corresponding soil outlet 711 at one end, and the other end of the soil guide plate 72 is located behind the corresponding film pressing roller 3 and is higher than the corresponding film pressing roller 3.

[0036] When the film covering device moves on the land, the two film pressing rollers 3 press and roll the two ends of the film 1, and at the same time, the corresponding soil cutting plate group 6 is driven by the vertical linear driving member 5 to move back and forth in the vertical direction, so that the soil cutting plate group 6 cuts the soil in the forward direction of the soil guide groove 7, reduces the blockiness of the soil, and with the movement of the soil guide groove 7, the low end of the soil guide groove 7 scrapes the cut soil and guides it into the soil storage groove 71, the soil in the soil storage groove 71 slides out of the soil outlet 711 and is guided by the soil guide plate 72 to slide to the back side of the corresponding film pressing roller 3 and falls onto the film 1 pressed by the film pressing roller 3, so as to realize the pressing of the end of the film 1, thereby improving the technical problem that the film covering device cannot effectively push and transport the soil when the soil may be hardened in the prior art, and affecting the film pressing effect.

[0037] At the same time, when the soil accumulated in the soil guide groove 7 is too much, part of the soil slides forward and is pushed by the advancing soil guide groove 7 to the position of the soil cutting plate group 6, the part of the soil is cut again by the soil cutting plate group 6 and is guided by the soil guide groove 7 into the soil storage groove 71 and is subjected to subsequent operation, so as to further improve the problem that the soil may be hardened and cannot be effectively utilized to perform the film pressing operation on the film 1 in the prior art.

[0038] In addition, the soil storage groove 71 has a soil storage function, which can be used as a soil storage room and a transfer station, so as to ensure that the soil is continuously guided out and is guided by the soil guide plate 72 to perform the film pressing operation on the film 1, and reduce the phenomenon of film pressing interruption.

[0039] On the basis of the above embodiment, the bottom of the soil storage groove 71 is inclined downward toward the soil outlet 711, and the soil guide plate 72 is inclined and connected to the soil outlet 711 at the upper end, so as to improve the speed of soil discharge in the soil storage groove 71.

[0040] Please refer to Figure 3 The bracket 2 is in a "U" shape as a whole, and a connecting seat is fixedly connected to the middle part of the closed end, so as to be fixedly connected with external mechanical traction equipment for moving the mulching device. The mechanical traction equipment can be an agricultural trailer. The open end of the bracket 2 is provided with two arms for mounting the film pressing assembly, the soil cutting assembly, and the soil guide groove 7.

[0041] The bracket 2 is connected with a mounting frame 23, which includes two square tubes 231, the interiors of the square tubes 231 being detachably and slidably connected with a square rod. The square tubes 231 are fixedly connected to the closed end of the bracket 2 near the two arms. The end of the square rod away from the square tubes 231 is fixedly connected with a connecting block 232. The bottom of each of the two connecting blocks 232 is rotatably connected with a shaft rod 233, the two ends of the shaft rod 233 being rotatably connected to the two connecting blocks 232, and the two ends being threadedly connected with nuts, so as to detachably mount the film-coated film roller on the shaft rod 233. The square tubes 231 and the square rod can be detachably connected by bolts.

[0042] On the basis of the above embodiment, the shaft rod 233 is threadedly connected with two middle nuts 234, and the side walls of the two middle nuts 234 away from each other are fixedly connected with a tapered ring 235, the large-diameter end of the tapered ring 235 being fixedly connected to the middle nut 234. After the film-coated film roller is mounted on the shaft rod 233, the small-diameter end of the tapered ring 235 is inserted into the inside of the film-coated film roller by rotating the middle nut 234 until the middle nut 234 cannot be rotated, so as to limit the mounting position of the film-coated film roller and enable the film-coated film roller to be unwound while the shaft rod 233 rotates.

[0043] The vertical linear drive 5 can be a ball screw transmission mechanism, a synchronous belt transmission, an electric push rod, an electric cylinder, a cam mechanism, a cylinder mechanism, and a linear motor driven linear drive mechanism. The driving end of the linear drive mechanism is drivingly connected to the center of the soil cutting plate group 6. In the figure, the linear drive mechanism is a cylinder.

[0044] Please refer to Figures 6-8In the embodiment, each of the floor cutting groups 6 comprises a plurality of longitudinal plates 61 arranged in parallel and at intervals, a plurality of transverse plates 62 arranged in parallel and at intervals, and a plate frame 63 fixedly connected to the upper end of each longitudinal plate 61 and each transverse plate 62. Each longitudinal plate 61 extends in the front-rear direction, each transverse plate 62 extends in the left-right direction, and each transverse plate 62 is located in front of each longitudinal plate 61. Each longitudinal plate 61 is located in front of the soil guide groove 7. The plate frame 63 is drivingly connected to the driving end of the vertical linear driving member 5.

[0045] In the process of cutting the soil in the front direction of the soil guide groove 7 by the floor cutting group 6, after each transverse plate 62 forms a transverse cutting operation in the left-right direction of the soil, with the advancement of the mulch device, each longitudinal plate 61 simultaneously performs a longitudinal cutting operation in the front-rear direction to reduce the hardening of the soil in the front direction and ensure that the subsequent soil can be smoothly guided into the soil storage groove 71 by the soil guide groove 7.

[0046] Meanwhile, when the soil accumulated in the soil guide groove 7 is too much, part of the soil slides forward and is pushed by the advancing soil guide groove 7 to the position of the floor cutting group 6, and this part of the soil can enter the gap formed by each longitudinal plate 61 to ensure that this part of the soil is cut again by each longitudinal plate 61 that reciprocates downward and upward, and is guided by the soil guide groove 7 into the soil storage groove 71 and performs subsequent operations to further improve the problem that the soil may be hardened in the prior art, which leads to the problem that the soil cannot be effectively utilized and the mulch film 1 cannot be pressed.

[0047] Each of the floor cutting groups 6 further comprises a soil scraping sleeve 64 fixedly connected to the bracket 2. The soil scraping sleeve 64 is provided with a plurality of plate holes 641 extending longitudinally and transversely. Each longitudinal plate 61 is vertically and slidingly connected to a corresponding longitudinally extending plate hole 641. Each transverse plate 62 is vertically and slidingly connected to a corresponding transversely extending plate hole 641.

[0048] In the process of reciprocating upward and downward of each transverse plate 62 and each longitudinal plate 61 and cutting the soil, each transverse plate 62 and each longitudinal plate 61 vertically moves relative to the soil scraping sleeve 64 at the corresponding plate hole 641 to scrape off the soil adhered to the cutting end of each transverse plate 62 and each longitudinal plate 61 through the soil scraping sleeve 64 with unchanged height, thereby ensuring the effectiveness of each transverse plate 62 and each longitudinal plate 61 in cutting the soil.

[0049] Meanwhile, it can be ensured that the stress of the vertical linear driving member 5 will not be increased due to the soil adhered to each transverse plate 62 and each longitudinal plate 61, thereby affecting the service life of the vertical linear driving member 5.

[0050] Please refer to Figure 6 , Figure 9 and Figure 10In the embodiment, the filter plate 73 is connected to the groove top of the corresponding guide groove 7 and penetrates a plurality of filter holes.

[0051] The filter plate 73 filters the soil introduced into the soil storage groove 71, reducing the possibility of large or plate-shaped soil entering the soil storage groove 71.

[0052] It should be noted that, as the guide groove 7 continuously guides the soil to the filter plate 73, the backward moving soil can push away the excess or retained soil on the filter plate 73, so that the filter plate 73 is not blocked and can continuously filter the soil.

[0053] Both the filter plates 73 are inclined and the low end is connected to the high end of the corresponding guide groove 7. Both the low ends of the filter plates 73 are fixedly connected to the lower rotating shaft 731 which is slidingly connected to the soil storage groove 71 at both ends. Both the high ends are fixedly connected to the upper rotating shaft 732 which is rotatably connected to the soil storage groove 71 at both ends. The guide groove 7 is fixedly connected to the vibration member 74 which is used to push the lower rotating shaft 731 to move around the upper rotating shaft 732 as the axis.

[0054] When performing the mulching operation, the lower rotating shaft 731 is pushed by the vibration member 74 to move around the upper rotating shaft 732 as the axis, so that the filter plate 73 slightly rotates around the upper rotating shaft 732 as the axis, generating a vibration effect on the soil on the filter plate 73, improving the soil screening effect, and reducing the probability of the filter holes of the filter plate 73 being blocked.

[0055] The groove wall of the soil storage groove 71 penetrates two arc-shaped grooves 712, both of which are centered on the upper rotating shaft 732. Both ends of the lower rotating shaft 731 are slidingly connected to the two arc-shaped grooves 712, and both ends of the lower rotating shaft 731 are fixedly connected to the lifting plate 7311. The rear end of the bracket 2 is rotatably connected to the wheel shaft 21, and both ends of the wheel shaft 21 are fixedly connected to the support wheel 22. The vibration member 74 includes an eccentric wheel 741 rotatably connected to the soil storage groove 71 and a pulley set 742 coaxially fixedly connected to the axis of the eccentric wheel 741. The wheel surface of the eccentric wheel 741 abuts the lower side of the lifting plate 7311, and the other pulley of the pulley set 742 is coaxially fixedly connected to the wheel shaft 21.

[0056] When the film covering operation is performed, the two supporting wheels 22 are supported on the ground at the same time to ensure the stability of the whole bracket 2, and with the advancement of the film covering operation, the supporting wheels 22 and the wheel shaft 21 rotate at the same time, under the transmission of the belt pulley set 742, the eccentric wheel 741 is driven to rotate, the lifting plate 7311 and the lower rotating shaft 731 connected therewith simultaneously slide along the arc-shaped groove 712, the filter plate 73 is slightly rotated around the upper rotating shaft 732 as the axis, the vibration effect on the soil on the filter plate 73 is generated, the soil screening effect is improved, and the probability of the filter holes of the filter plate 73 being blocked is reduced, and in this process, the soil in blocks and with a larger volume rolls towards the low end of the filter plate 73, and can be guided to the ground cutting plate set 6 under the guidance of the soil guide groove 7 and cut again by the ground cutting plate set 6, so as to further reduce the problem that the soil in the prior art may be hardened, which leads to the problem that the soil cannot be effectively utilized and the film pressing operation cannot be performed on the mulching film 1.

[0057] The belt pulley set 742 includes two belt pulleys and a belt simultaneously tensioned on the two belt pulleys, one of the belt pulleys is coaxially fixedly connected to the axis of the eccentric wheel 741, and the other belt pulley is coaxially fixedly connected to one end of the wheel shaft 21.

[0058] In the embodiment, the vibration member 74 is provided with two vibration members, and is arranged on the left and right sides of the soil guide groove 7.

[0059] Please refer to Figures 1-2 In the embodiment, the two film pressing assemblies each further include a rear film pressing driving assembly 4, the rear film pressing driving assembly 4 includes a film pressing frame 41 rotationally connected to the corresponding film pressing roller 3 at the lower end, a plurality of rear guide rods 42 fixedly connected to the upper end of the film pressing frame 41 at the lower end, and a rear screw rod 43 rotationally connected to the upper end of the film pressing frame 41 at the lower end, and the upper end of the rear screw rod 43 is threadedly connected to the bracket 2.

[0060] The rear film pressing driving assembly 4 is used to install the corresponding film pressing roller 3, and during the operation, the height of the film pressing roller 3 can be adjusted by rotating the rear screw rod 43 under the guidance and limiting action of the rear guide rod 42, so as to ensure the effective film pressing effect of the film pressing roller 3 on the mulching film 1.

[0061] The film pressing roller 3 of the same film pressing assembly is provided with at least two film pressing rollers 3, and the film pressing rollers 3 are arranged at intervals in the front-rear direction, so as to improve the film pressing effect.

[0062] Please refer to Figures 4-6In the embodiment: the film coating device further comprises two film groove forming assemblies respectively installed at the left and right ends of the bracket 2, both of the film groove forming assemblies comprise a forwardly open soil scraping box 8, the bottom wall of the soil scraping box 8 is in an arc plate structure and is downwardly inclined, the soil scraping box 8 is located in front of the corresponding side of the film pressing roller 3, and the soil scraping box 8 is used for being installed at the lower side of the mulching film 1.

[0063] During the film coating operation, the bottom wall of the soil scraping box 8 in the arc plate structure scrapes the soil to form a film pressing groove, then the film pressing roller 3 presses the mulching film 1 into the film pressing groove formed by the soil scraping box 8, and then the soil falls under the action of the soil guide groove 7 and related structures and the mulching film 1 is completely pressed into the film pressing groove, thereby realizing stable film coating of the mulching film 1; in this process, the soil is combed to form a film pressing groove under the action of the advancing soil scraping box 8, so that the subsequent soil can effectively press the mulching film 1, and the pressed soil can enter the film pressing groove.

[0064] With the advancement of the soil scraping box 8, when the soil stored in the soil scraping box 8 is accumulated, the soil is scattered or continuously pushed forward by the pushing action of the advancing soil scraping box 8.

[0065] Both of the soil scraping box 8 opposite openings form a side opening 81, and both of the soil scraping box 8 are fixedly connected with a soil guide box 82, both of the soil guide box 82 are forwardly open and open through the left and right directions, one end of the soil guide box 82 is communicated with the corresponding side opening 81, and the other end of the soil guide box 82 is located in front of the corresponding cutting floor group 6.

[0066] With the advancement of the soil scraping box 8, the soil entering the soil scraping box 8 can enter the soil guide box 82 from the side opening 81 and be guided out from the other end of the soil guide box 82 to the front of the cutting floor group 6, at this time, the soil is refined in the process of being scraped up by the soil scraping box 8 and being guided and rolled by the soil guide box 82, and is further cut and refined by the cutting floor group 6, and then is guided by the soil guide groove 7 and used, which can improve the technical problem that the film coating device cannot effectively push and transport the soil when the soil is hardened in the prior art, thereby affecting the effect of soil pressing of the mulching film.

[0067] Both of the film groove forming assemblies further comprise a front soil scraping driving assembly 9, both of the front soil scraping driving assemblies 9 comprise a front guide rod 91 and a front screw rod 92 which are vertically arranged, the lower end of the front guide rod 91 and the front screw rod 92 are fixedly connected to the upper side of the soil scraping box 8, and the upper end of the front guide rod 91 and the front screw rod 92 are vertically slidably connected to the bracket 2, the upper end of the front screw rod 92 is threadedly connected with a plurality of limiting nuts 93, and the limiting nuts 93 are distributed on the upper and lower sides of the bracket 2.

[0068] The corresponding soil scraping box 8 is installed through the front soil scraping driving assembly 9, and during operation, the front screw rod 92 and the soil scraping box 8 can be moved in the vertical direction under the guidance and limiting action of the front guide rod 91 to adjust the height of the corresponding soil scraping box 8 according to the needs, so that the soil scraping box 8 can scrape the soil, and the depth of the soil scraped by the soil scraping box 8 is adjusted, and after the adjustment is completed, the limiting nuts 93 are tightened.

[0069] On the basis of the above embodiment, the lead-in shaft 83 is rotatably connected to the upper side of the soil scraping box 8 to guide the mulching film 1 through the lead-in shaft 83.

[0070] Working principle: when in use, the nut on the shaft rod 233 is loosened, one of the connecting blocks 232 is disassembled by loosening the bolts on the square tube 231, the film-wrapped film-coated roller is sleeved on the shaft rod 233, the shaft rod 233 sleeved with the film-coated roller and the connecting block 232 are installed on the square tube 231, the mulching film 1 is pulled to pass through the lead-in shaft 83, and the end of the mulching film 1 reaches the predetermined starting position, and the soil is pressed at this time, and the low end of the soil guide groove 7 has been embedded into the ground. Finally, the external mechanical traction device is fixedly connected to the connecting seat on the bracket 2, and the soil scraping box 8, the film pressing roller 3, and the ground cutting group are adjusted to the predetermined height position. As one of the height examples, the soil scraping box 8, the film pressing roller 3, the low end of the soil guide groove 7, and the lowest point of the ground cutting group 6 can be at the same depth position, that is, the predetermined depth of the mulching film 1 pressed into the ground.

[0071] When the film coating machine moves on the land, the soil scraping box 8 scrapes the soil to form a film pressing groove, the film pressing roller 3 presses the mulching film 1 into the film pressing groove, the ground cutting group 6 continuously cuts the soil, and the soil guide groove 7 continuously guides and falls the soil onto the mulching film 1 pressed into the film pressing groove, so as to continuously press the mulching film 1.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A device for covering seedlings, characterized in that: The device comprises a bracket (2), two film pressing assemblies and two soil cutting assemblies, the two film pressing assemblies are respectively arranged at the left and right ends of the bracket (2), and each comprises a film pressing roller (3) rotatably connected to the bracket (2), the film pressing roller (3) is used for pressing the end of the mulching film (1), the two soil cutting assemblies are respectively arranged at the left and right ends of the bracket (2), and each comprises a vertical linear driving member (5) mounted on the bracket (2) and a soil cutting plate group (6) drivingly connected to the driving end of the vertical linear driving member (5), the driving end of the vertical linear driving member (5) extends vertically downward, the left and right ends of the bracket (2) are fixedly connected with soil guide grooves (7), the two soil guide grooves (7) are respectively open forward to the corresponding soil cutting plate group (6), and the two soil guide grooves (7) are both arranged obliquely, and the high ends of the two soil guide grooves (7) are connected with soil storage grooves (71) which are open upward, the groove openings of the two soil storage grooves (71) are connected with the groove tops of the corresponding soil guide grooves (7), the groove walls of the two soil storage grooves (71) are open to each other to form earth outlet openings (711) which are connected with the corresponding groove bottoms, and the two soil storage grooves (71) are fixedly connected with soil guide plates (72) which are connected with the corresponding earth outlet openings (711) at one end, and the other ends of the two soil guide plates (72) are located behind the corresponding film pressing rollers (3) and are higher than the corresponding film pressing rollers (3); The two soil cutting plate groups (6) each comprise a plurality of longitudinal plates (61) which are parallel to and spaced from each other, a plurality of transverse plates (62) which are parallel to and spaced from each other, and a plate frame (63) which is fixedly connected to the upper ends of the longitudinal plates (61) and the transverse plates (62), the longitudinal plates (61) each extend in the front-rear direction, the transverse plates (62) each extend in the left-right direction, and The transverse plates (62) are located in front of the longitudinal plates (61), the longitudinal plates (61) are located in front of the soil guide grooves (7), and the plate frame (63) is drivingly connected to the driving end of the vertical linear driving member (5); The groove openings of the two soil storage grooves (71) are connected with soil filtering plates (73) which are connected with the groove tops of the corresponding soil guide grooves (7).

2. The device for covering seedlings according to claim 1, characterized in that: The two soil cutting plate groups (6) each further comprise a soil scraping sleeve (64) fixedly connected to the bracket (2), the soil scraping sleeve (64) is provided with a plurality of plate holes (641) which extend longitudinally and transversely, respectively, the longitudinal plates (61) are one-to-one matched with and vertically slidably connected to the corresponding longitudinally extending plate holes (641), and the transverse plates (62) are one-to-one matched with and vertically slidably connected to the corresponding transversely extending plate holes (641).

3. The device for covering seedlings according to claim 1, characterized in that: Both the filter soil plates (73) are inclined and the low end is connected to the high end of the corresponding soil guide groove (7), the low end of both the filter soil plates (73) is fixedly connected to the lower rotating shaft (731) which is slidingly connected to the soil storage groove (71) at both ends, and the high end is fixedly connected to the upper rotating shaft (732) which is rotatably connected to the soil storage groove (71) at both ends, the soil guide groove (7) is fixedly connected to the vibrating member (74) which is used to push the lower rotating shaft (731) to move around the upper rotating shaft (732) as the axis.

4. The device for covering seedlings according to claim 3, characterized in that: The groove wall of the soil storage groove (71) is provided with two arc-shaped grooves (712) which are centered on the upper rotating shaft (732), the two ends of the lower rotating shaft (731) are slidingly connected to the two arc-shaped grooves (712), and the two ends of the lower rotating shaft (731) are fixedly connected to the lifting plate (7311); the rear end of the bracket (2) is rotatably connected to the wheel shaft (21), and the both ends of the wheel shaft (21) are fixedly connected to the support wheel (22); the vibrating member (74) includes an eccentric wheel (741) rotatably connected to the soil storage groove (71) and a belt pulley set (742) coaxially fixedly connected to the axis of the eccentric wheel (741), the wheel surface of the eccentric wheel (741) abuts the lower side of the lifting plate (7311), and the other belt pulley of the belt pulley set (742) is coaxially fixedly connected to the wheel shaft (21).

5. The device for covering seedlings according to claim 1, characterized in that: Both the film pressing assemblies further include a rear film pressing driving assembly (4), both the rear film pressing driving assemblies (4) include a film pressing frame (41) rotatably connected to the corresponding film pressing roller (3) at the lower end, a plurality of rear guide rods (42) fixedly connected to the upper end of the film pressing frame (41) at the lower end, and a rear screw rod (43) rotatably connected to the upper end of the film pressing frame (41) at the lower end, and the upper end of the rear screw rod (43) is threadedly connected to the bracket (2).

6. The device for covering seedlings according to any one of claims 1 to 5, characterized in that: The film coating device further includes two film groove forming assemblies respectively mounted on the left and right ends of the bracket (2), both the film groove forming assemblies include a forwardly open soil scraping box (8), the bottom wall of both the soil scraping boxes (8) is in an arc-shaped plate structure and is downwardly inclined, both the soil scraping boxes (8) are located in front of the corresponding film pressing roller (3), and both the soil scraping boxes (8) are used to be mounted on the lower side of the mulching film (1).

7. The device for covering seedlings according to claim 6, characterized in that: Both the soil scraping boxes (8) are formed with a side opening (81) at the opposite opening, and both the soil scraping boxes (8) are fixedly connected with a soil guide box (82), both the soil guide boxes (82) are forwardly open and are open through the left and right directions, and one end opening is in communication with the corresponding side opening (81), and the other end opening is located in front of the corresponding cutting board group (6).

8. The device for covering seedlings according to claim 6, characterized in that: Both the film tank forming assemblies further comprise front soil scraping driving assemblies (9), each of which comprises a front guide rod (91) and a front screw rod (92) arranged vertically, the lower end of each of the front guide rod (91) and the front screw rod (92) is fixedly connected to the upper side of the soil scraping box (8), and the upper end of each of the front guide rod (91) and the front screw rod (92) is vertically and slidingly connected to the bracket (2), and the upper end of the front screw rod (92) is threadedly connected with a plurality of limiting nuts (93), and each of the limiting nuts (93) is distributed on the upper and lower sides of the bracket (2).

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