Film covering device

Abstract

The utility model relates to the technical field of agricultural equipment, and provides a film mulching device which comprises a film cylinder, an outlet groove is formed in the peripheral face of the film cylinder, the two ends of the film cylinder are fixedly connected with end covers through screws, fixing blocks are welded to the end covers, and the fixing blocks are fixed to the end covers through the arrangement of the end covers, a center shaft and other structures. A cover is closed after a film roll is placed in a film cylinder, a first handle and the film cylinder are screwed and fixed, a film mulching device is started, the film roll is driven to freely rotate in the film cylinder and conduct film mulching, after the film roll rotates, and a mulching film flows out, the film roll firstly moves on a film supporting strip, and a swing arm type connecting frame can automatically adjust the position of a roller according to the height of different kinds of planting soil; the second bearings are installed at the two ends of the roller, so that the roller rolls along with the advancing direction of the unit, and mulching film tearing is effectively avoided. By means of the technical scheme, the problems that in the prior art, a film roll cannot rotate freely to achieve automatic film discharging, the height of a film mulching device cannot be adjusted, and a mulching film cannot be kept flat and complete are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural equipment, and in particular to a land film covering device for agricultural planting. Background Art

[0002] With the development of the plastics industry, especially the emergence of agricultural plastic films, some industrially developed countries have used plastic films to cover the ground and achieved good results in the production of vegetables and other crops. The greatest effect of mulching cultivation is to increase soil temperature, which can significantly reduce soil moisture evaporation, stabilize soil moisture, and keep it moist for a long time, which is conducive to root growth. In addition, mulching can avoid soil compaction caused by irrigation or rain erosion, reduce the labor of tillage, and make the soil loose and permeable. In agricultural planting, it is necessary to use a mulching device to cover the planting soil area. Due to the different heights of different planting soils, the height position of the mulching mechanism needs to be adjusted before the mulching device is used, and the flatness of the mulch needs to be ensured. However, the height adjustment method of the mulching mechanism inside the mulching device in the prior art is mostly manual adjustment, which is more troublesome. During the laying of the mulch, due to poor field conditions, problems such as mulch curling and tearing are prone to occur.

[0003] The authorization announcement number in the prior art is: CN111955250A, and the name is a land film covering device for agricultural planting. This film covering device belongs to the field of agricultural equipment technology. This device is mainly composed of two groups of symmetrically arranged support seats, which are connected by solid support rods and fixedly installed with a storage cylinder. A rotatable film roll assembly is arranged inside the storage cylinder for storing and releasing the film.

[0004] However, the device requires the operator to manually pull one end of the film wound on the winding drum out of the film outlet slit and pull the end of the film to move the film above the ground. The film roll cannot rotate freely to achieve automatic film outlet, which increases labor costs. In addition, the device does not take into account the height of different planting soils and field conditions. The operator needs to make frequent manual adjustments, and the film is prone to curling and tearing during adjustments, resulting in poor film covering effect, which affects the growth and yield of crops, increases the complexity and difficulty of operation, and thus affects the film covering effect and work efficiency. Utility Model Content

[0005] The utility model provides a film covering device, which solves the problems in the related art that the film roll cannot rotate freely to realize automatic film discharging and the height of the film covering device cannot be adjusted to keep the ground film flat and intact.

[0006] The technical solution of the utility model is as follows:

[0007] A coating device comprises a film cylinder, an outlet groove is opened on the outer circumference of the film cylinder, both ends of the film cylinder are fixedly connected with end covers by screws, fixing blocks are welded on the end covers, and the interiors of the two end covers are connected to film reels through bearings.

[0008] Preferably, a film roll is sleeved on the film reel, a cover is rotatably mounted on the end cover, a handle 2 is welded on the front end of the cover, one side of the two end covers are fixedly connected to a connecting frame by bolts, one side of the two connecting frames are rotatably connected to a roller by bearing 2, and a plurality of film support strips arranged equidistantly in an array are welded under the film cylinder.

[0009] Preferably, a central shaft is rotatably mounted inside the end cover, and a shaft sleeve, a round cover and a handle are respectively sleeved on the outer circumference of the central shaft, and a film roll baffle and a spring washer are respectively arranged on the outer circumference of the central shaft.

[0010] Preferably, a rotating hole is provided on the end cover, and the central shaft is rotatably mounted inside the rotating hole to drive the film to be rolled out.

[0011] Preferably, circular holes are provided on both sides of the fixing block, and the cover is rotatably mounted inside the circular holes so that the cover can be opened and closed freely.

[0012] Preferably, the interior of the sleeve is provided with a thread groove 1 penetrating through the sleeve, and one side of the round cover and the handle 1 is provided with a thread groove 2, and the central shaft is simultaneously rotatably installed inside the thread groove 1 and the thread groove 2 to fix the film roll baffle.

[0013] Preferably, a through hole penetrating the film cylinder is provided inside the film cylinder, and the film reel and the central axis are both located inside the drum to provide space for the film reel to rotate.

[0014] The working principle and beneficial effects of the utility model are:

[0015] 1. In the utility model, after the film roll is put into the film cylinder through the arrangement of structures such as the end cover and the central axis, the cover is closed and fixed to the film cylinder by screwing the handle 1, and the film covering device is started, driving the film roll to rotate freely and lay the film in the film cylinder, thus realizing automatic film output, reducing the labor intensity while ensuring the film output quality. After the film roll rotates and flows out, it first moves on the film support strip to ensure the flatness of the film and protect the film from being easily torn. The swing arm type connecting frame can automatically adjust the position of the drum according to the height of different planting soils. Bearings 2 are installed at both ends of the drum to make the drum roll with the forward direction of the random group, thus effectively avoiding tearing of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a front cross-sectional view of the utility model;

[0019] Figure 3 It is a cross-sectional view of the internal transmission structure of the utility model.

[0020] In the figure: 1. connecting frame; 2. film cylinder; 3. cover; 4. roller; 5. film support bar; 6. film reel; 7. handle 1; 8. center axis; 9. spring washer; 10. nut; 11. end cover; 12. film reel baffle; 13. handle 2; 14. outlet slot; 15. fixing block; 16. shaft sleeve; 17. round cover. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] like Figure 1 to Figure 3As shown, this embodiment proposes a coating device, which is characterized in that it includes a film cylinder 2, an outlet groove 14 is opened on the outer circumferential surface of the film cylinder 2, both ends of the film cylinder 2 are fixedly connected with end covers 11 by screws, and a fixing block 15 is welded on the end cover 11, the interior of the two end covers 11 is connected with a film reel 6 through a bearing 1, a film roll is sleeved on the film reel 6, a cover 3 is rotatably mounted on the end cover 11, a handle 2 13 is welded on the front end of the cover 3, one side of the two end covers 11 is fixedly connected with a connecting frame 1 by bolts, one side of the two connecting frames 1 is rotatably connected with a roller 4 through a bearing 2, a plurality of film support strips 5 arranged equidistantly in an array are welded under the film cylinder 2, a central shaft 8 is rotatably mounted inside the end cover 11, and shaft sleeves are respectively sleeved on the outer circumferential surface of the central shaft 8 16, round cover 17 and handle 7, the outer circumferential surfaces of the central axis 8 are respectively provided with a film roll baffle 12 and a spring washer 9. Through the arrangement of the end cover 11 and the central axis 8 and other structures, after the film roll is placed in the film cylinder 2, the cover 3 is closed and screwed and fixed to the film cylinder 2 through the handle 7, and the film covering device is started, driving the film roll to rotate freely and lay the film in the film cylinder 2, thereby realizing automatic film output, reducing labor intensity while ensuring the quality of film output. After the film roll rotates and the ground film flows out, it first moves on the film support strip 5 to ensure the flatness of the ground film and protect the ground film from being easily torn. The swing arm type connecting frame 1 can automatically adjust the position of the drum 4 according to the height of different planting soils. Bearings 2 are installed at both ends of the drum 4 to make the drum 4 roll together with the forward direction of the random group to effectively avoid tearing the ground film.

[0024] like Figure 1 to Figure 3 As shown, a rotating hole is opened on the end cover 11, and the central shaft 8 is rotatably installed inside the rotating hole. Circular holes are opened on both sides of the fixed block 15, and the cover 3 is rotatably installed inside the circular hole. A thread groove 1 is opened inside the shaft sleeve 16 and passes through the shaft sleeve 16. Thread groove 2 is opened on one side of the round cover 17 and the handle 7. The central shaft 8 is rotatably installed inside the thread groove 1 and the thread groove 2 at the same time. A through hole is opened inside the membrane cylinder 2 and passes through the membrane cylinder 2. The membrane reel 6 and the central shaft 8 are both located inside the drum 4.

[0025] In this embodiment, the operator first opens the cover 3 of the end cover 11 through the handle 2 13, puts the film roll on the film roll shaft 6 and then closes the cover 3, fixes it by tightening the handle 1 7, and then starts the film coating device. The rotation of the bearing drives the film roll to rotate freely and lay the film in the film cylinder 2 to realize automatic film discharge. It should be noted that a spring washer 9 and a film roll baffle 12 are provided on the central shaft 8. The spring washer 9 can effectively prevent external dust, moisture or other pollutants from entering the interior of the bearing, and also prevent the lubricating oil or grease inside the bearing from leaking out. The film roll baffle 12 can prevent the film roll from interfering with the inner wall of the film cylinder 2 when it rotates. When the film roll rotates and the ground film flows out, it first moves on the film support strip 5 to ensure the flatness of the ground film and protect the ground film from being easily torn. The swing-arm connecting frame 1 between the drum 4 and the film cylinder 2 can automatically adjust the position of the drum 4 according to the height of different planting soils. Driven by the second bearing, the drum 4 follows the film cylinder 2 and rolls forward, effectively avoiding tearing of the ground film. The automatic film discharging and the adjustable height of the drum 4 realize continuous and stable film discharging operations, greatly improving production efficiency. Compared with the traditional manual film laying method, the automatic film discharging not only reduces the time and energy of manual operation, but also avoids operational errors and delays caused by human factors. At the same time, it realizes the precise positioning and smooth unfolding of the film, avoiding problems such as wrinkles and breakages that may occur during manual operation. This helps to ensure the quality and effect of the film covering, reduce the difficulty of operation and labor intensity, and improve the efficiency and quality of agricultural production.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coating device, characterized in that: It comprises a film cylinder (2), an outlet groove (14) is provided on the outer peripheral surface of the film cylinder (2), both ends of the film cylinder (2) are fixedly connected to end covers (11) by screws, a fixing block (15) is welded to the end cover (11), the interiors of the two end covers (11) are connected to a film reel (6) by bearings, and a film roll is sleeved on the film reel (6); A cover (3) is rotatably mounted on the end cover (11), a handle (13) is welded to the front end of the cover (3), one side of the two end covers (11) is fixedly connected to a connecting frame (1) by bolts, one side of the two connecting frames (1) is rotatably connected to a roller (4) by bearing (2), and a plurality of array-equidistantly arranged membrane support strips (5) are welded below the membrane cylinder (2); A central shaft (8) is rotatably mounted inside the end cover (11), and a shaft sleeve (16), a round cover (17) and a handle (7) are respectively sleeved on the outer circumference of the central shaft (8), and a film roll baffle (12) and a spring washer (9) are respectively arranged on the outer circumference of the central shaft (8).

2. A coating device according to claim 1, characterized in that: The end cover (11) is provided with a rotating hole, and the central shaft (8) is rotatably mounted inside the rotating hole.

3. A coating device according to claim 2, characterized in that: Circular holes are provided on both sides of the fixing block (15), and the cover (3) is rotatably mounted inside the circular holes.

4. A coating device according to claim 3, characterized in that: The shaft sleeve (16) has a thread groove 1 penetrating the shaft sleeve, and the round cover (17) and one side of the handle 1 (7) have thread groove 2, and the central shaft (8) is rotatably mounted inside the thread groove 1 and the thread groove 2 at the same time.

5. A coating device according to claim 4, characterized in that: The film cylinder (2) is provided with a through hole penetrating the film cylinder (2), and the film reel (6) and the central axis (8) are both located inside the drum (4).

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