Mulching film laying device

Abstract

The invention discloses a mulching film laying device which comprises a rack, a film pressing wheel, an unwinding assembly and a film covering mechanism. A rotating shaft is horizontally and rotatably arranged in the rack, a row of film pressing wheels are coaxially and fixedly arranged on the rotating shaft at equal intervals, a pair of unwinding assemblies with the adjustable interval is arranged in the support so that mulching films of different sizes can be assembled between the pair of unwinding assemblies, and the film covering mechanism comprises a fixing plate and a soil turning cutter; fixing plates are horizontally and fixedly arranged on the two sides of the rack correspondingly, and two rows of soil turning cutters with the adjustable distance are horizontally arranged on the opposite faces of the two fixing plates at intervals correspondingly, so that soil on the two sides of a mulching film is turned, the two sides of the mulching film are covered with the soil, and the laid ground is covered with the soil; the mulching film laying device can lay mulching films with different widths, and in the mulching film laying process, soil sealing operation can be automatically conducted on the edges of the two sides of the mulching film through the film covering mechanism, so that the two sides of the mulching film are covered with soil, and the situation that the mulching film is blown up by wind and the film laying effect is affected is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural tools, and in particular to a ground film laying device. Background Art

[0002] Ground film, as the name implies, is a film used to cover the ground. It is usually a transparent or black PE film, but there are also green and silver films. Ground film is needed to cover the ground in the early production stage of crops to increase soil temperature, maintain soil moisture, prevent crop damage caused by pests or weather, and effectively promote plant growth. Existing ground film laying devices generally use roller-type ground film, which is then squeezed and laid by a ground film pressing wheel.

[0003] After searching: Chinese patent application number is "CN202211231263.4", which discloses an agricultural ground film laying device with the function of preventing ground film from folding, including an equipment body, a ground film fixing rod is rotatably connected in the internal cavity of the equipment body, an anti-folding device is arranged in the internal cavity of the equipment body, and a laying device is movably connected to the left side of the equipment body through a connecting rod. The utility model uses an anti-folding device to prevent the ground film from folding during the transmission process. Through the movement of the equipment body, the left rotating rod controls the bevel gear one to rotate counterclockwise through the transmission belt two, and then controls the ground film stretching rod on the right to rotate clockwise through the bevel gear two. At the same time, the two ground film stretching rods are in contact with the ground film and rotate in coordination, which can effectively prevent the ground film from folding during the transmission process.

[0004] The inventor discovered the following problems in the prior art during the implementation of the present invention:

[0005] During the laying process of the device, since both sides of the ground film are not fixed, the ground film laid on the ground will be blown up by the wind, resulting in failure of film laying and reducing the effect of film laying.

[0006] Therefore, it is an urgent problem to be solved by the present invention to provide a mulch film laying device which can lay mulch films of different widths during use, and during the mulch film laying process, can automatically cover the soil on both sides of the mulch film through a film covering mechanism so that the soil covers both sides of the mulch film, thereby preventing the mulch film from being blown away by the wind and affecting the mulch laying effect. Summary of the invention

[0007] In view of the above technical problems, the purpose of the present invention is to overcome the problem in the prior art that during the laying process, the ground film laid on the ground will be blown up by the wind because the two sides of the ground film are not fixed, resulting in failure of film laying and reduced film laying effect. Thus, a ground film laying device is provided which can lay ground films of different widths during use. During the laying process of the ground film, the edges of both sides of the ground film can be automatically covered with soil through a film covering mechanism to cover the soil on both sides of the ground film, thereby preventing the ground film from being blown up by the wind and affecting the film laying effect.

[0008] In order to achieve the above-mentioned object, the present invention provides a ground film laying device, which comprises: a frame, a film pressing wheel, an unwinding assembly and a film covering mechanism;

[0009] The frame connected to the tractor is provided with a rotating shaft horizontally and rotatably inside, and a row of film pressing wheels for pressing the ground film so that the ground film contacts the ground are fixedly provided on the rotating shaft at equal intervals and coaxially, and a No. 1 walking wheel is respectively passed through the two sides of the frame and coaxially fixedly provided at both ends of the rotating shaft, and a bracket is fixedly provided on one side of the frame close to the tractor through a mounting frame, and a pair of unwinding assemblies with adjustable spacing are provided inside the bracket, so that ground films of different sizes can be assembled between the pair of unwinding assemblies, and the film covering mechanism includes: a fixing plate and a soil turning knife; wherein,

[0010] Fixed plates are fixed horizontally on both sides of the frame, and two rows of tilling knives with adjustable spacing are horizontally and spaced apart on the facing surfaces of the two fixed plates. The blade surface of each tilling knife is an arc-shaped structure, and the end of each tilling knife close to the frame is inclined toward the fixed plates to turn the soil on both sides of the ground film and cover both sides of the ground film to seal the ground after paving.

[0011] Preferably, the unwinding assembly comprises: a screw, a limiting plate and a clamp; wherein,

[0012] Threaded holes matching the screw rods are respectively provided horizontally through both sides of the U-shaped bracket, and a screw rod is fixedly provided in each threaded hole in a horizontal manner. Limiting plates are respectively coaxially and rotatably provided at the adjacent ends of the two screw rods, and conical clamps are respectively fixedly provided horizontally on the facing surfaces of the two limiting plates.

[0013] Preferably, the device further comprises an adjusting mechanism for adjusting the spacing between the two rows of soil turning knives on the two fixed plates, wherein the adjusting mechanism comprises: an electric telescopic rod and a connecting plate; wherein,

[0014] At least one electric telescopic rod is horizontally fixedly installed on each of the fixed plates, and a connecting plate parallel to the fixed plate is horizontally fixedly installed on the telescopic end of the electric telescopic rod facing away from the tilling knife. Each of the tilling knives passes horizontally through the avoidance hole on the fixed plate through at least one connecting rod and is fixed on the connecting plate.

[0015] Preferably, the electric telescopic rod is a servo electric cylinder.

[0016] Preferably, each of the annular film pressing wheels is coaxially fixed on the rotating shaft through a buffer connection member, and the buffer connection member includes: a buffer seat, a buffer plate, a buffer spring and a buffer rod; wherein,

[0017] A fixing sleeve is coaxially fixed on the rotating shaft, and a plurality of buffer seats are vertically fixedly arranged on the fixing sleeve at equal intervals along its circumferential direction, and a buffer plate is slidably arranged inside each of the buffer seats, a buffer spring capable of extending from an opening of the buffer seat is vertically fixed on one side of the buffer plate, the free end of the buffer spring is fixed on the inner wall of the film pressing wheel, a buffer spring is fixedly arranged on the other side of the buffer plate, and the free end of the buffer spring is fixed on the buffer seat.

[0018] Preferably, at least two No. 2 running wheels are vertically and rotatably provided on both sides of the mounting frame.

[0019] Preferably, a traction seat capable of being assembled with a traction machine is fixedly provided on one side of the bracket away from the frame, and a plurality of assembly holes are vertically and penetrated on the traction seat.

[0020] According to the above technical solution, the beneficial effects of the ground film laying device provided by the present invention when used are as follows:

[0021] (1) Before the entire device is moved, the free end of the ground film is pulled to the bottom of the frame and passed through a row of film pressing wheels in the frame and then laid flat on the ground, and the free end of the ground film is pressed on the ground through the soil, and then the tractor or other traction machine is started to drive the entire device forward. Since the free end of the ground film is pressed on the ground, the ground film assembled on a pair of unwinding assemblies can automatically rotate and unwind during the traction process of the entire device. At the same time, the No. 1 walking wheel rolls on the ground to drive the rotating shaft and the row of film pressing wheels fixed on the rotating shaft to rotate together. During the unwinding process, the unrolled ground film can be laid flat on the ground by a row of film pressing wheels to prevent the ground film from folding during the laying process, thereby realizing the function of automatic film laying.

[0022] (2) When the frame is towed forward, the two rows of tilling knives horizontally fixed on both sides of the frame move with it. Since the facing surfaces of the two rows of tilling knives are arc-shaped structures, and the ends of the two rows of tilling knives close to the frame are inclined toward their corresponding fixed plates (so that each two symmetrical tilling knives in the two rows are in an inverted eight shape), the frame can drive the two rows of tilling knives on both sides to turn the soil toward the edges of the ground film spread on the ground during the forward movement, so as to cover the edges of the ground film, and cover the soil turned up by the tilling knives on both sides of the ground film spread on the ground, so as to prevent the ground film spread on the ground from being blown away by the wind during the laying process, thereby affecting the laying effect.

[0023] The present invention can lay ground films of different widths. During the laying of the ground films, the film covering mechanism can automatically cover the edges of both sides of the ground films with soil, so that the soil covers both sides of the ground films, thereby preventing the ground films from being blown up by the wind and affecting the film laying effect.

[0024] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation mode; and the parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a structural schematic diagram of a ground film laying device provided in a preferred embodiment of the present invention;

[0027] Figure 2 It is a structural top view of a ground film laying device provided in a preferred embodiment of the present invention;

[0028] Figure 3 It is a top view of the structure of a ground film laying device provided in a preferred embodiment of the present invention at a certain moment in the process of laying ground film;

[0029] Figure 4 It is a schematic diagram of the assembly of a frame and a film pressing wheel of a ground film laying device provided in a preferred embodiment of the present invention;

[0030] Figure 5 It is a schematic assembly diagram of an unwinding assembly of a ground film laying device provided in a preferred embodiment of the present invention;

[0031] Figure 6It is a structural cross-sectional view of a buffer connector of a ground film laying device provided in a preferred embodiment of the present invention.

[0032] Description of Reference Numerals

[0033] 1. Frame; 2. Rotating shaft; 3. Fixed sleeve; 4. Film pressing wheel; 5. Bracket; 6. Unwinding assembly; 601. Screw; 602. Limiting plate; 603. Chuck; 7. Fixed plate; 8. Soil turning knife; 9. Electric telescopic rod; 10. Connecting plate; 11. No. 1 running wheel; 12. No. 2 running wheel; 13. Mounting frame; 14. Buffer connector; 1401. Buffer seat; 1402. Buffer plate; 1403. Buffer spring; 1404. Buffer rod; 15. Traction seat. DETAILED DESCRIPTION

[0034] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0035] like Figure 1-6 As shown, the present invention provides a ground film laying device, which includes: a frame 1, a film pressing wheel 4, an unwinding assembly 6 and a film covering mechanism;

[0036] The frame 1 connected to the tractor is provided with a rotating shaft 2 horizontally and rotatably inside, and a row of film pressing wheels 4 for pressing the ground film so that the ground film contacts the ground are coaxially fixedly arranged at equal intervals on the rotating shaft 2, and the two ends of the rotating shaft 2 respectively pass through the two sides of the frame 1 and are coaxially fixedly provided with a No. 1 walking wheel 11, and a bracket 5 is fixedly arranged on one side of the frame 1 close to the tractor through a mounting frame 13, and a pair of unwinding assemblies 6 with adjustable spacing are arranged inside the bracket 5, so that ground films of different sizes can be assembled between the pair of unwinding assemblies 6, and the film covering mechanism includes: a fixing plate 7 and a soil turning knife 8; wherein,

[0037] Fixed plates 7 are fixedly arranged horizontally on both sides of the frame 1, and two rows of tilling knives 8 with adjustable spacing are arranged horizontally and at intervals on the facing surfaces of the two fixed plates 7. The blade surface of each tilling knife 8 is an arc-shaped structure, and the end of each tilling knife 8 close to the frame 1 is inclined toward the fixed plates 7 to turn the soil on both sides of the ground film and cover both sides of the ground film to seal the ground after paving.

[0038] In the above scheme, when in use, the entire device is assembled on a tractor or other equipment that can tow the entire device, and the spacing between a pair of unwinding assemblies 6 is adjusted to assemble the ground film between the two.

[0039] Before the entire device moves, the free end of the ground film is pulled to the bottom of the frame 1 and passed through a row of the film pressing wheels 4 in the frame 1 before being spread flat on the ground, and the free end of the ground film is pressed on the ground through the soil, and then the tractor or other traction machine is started to drive the entire device forward. Since the free end of the ground film is pressed on the ground, the ground film assembled on a pair of the unwinding assemblies 6 can automatically rotate and unwind during the traction process of the entire device. At the same time, the No. 1 walking wheel 11 rolls on the ground to drive the rotating shaft 2 and the row of the film pressing wheels 4 fixed on the rotating shaft 2 to rotate together. During the unwinding process, the unrolled ground film can be spread flat on the ground through a row of the film pressing wheels 4 to prevent the ground film from folding during the laying process, thereby realizing the function of automatic film laying.

[0040] In addition, when the frame 2 is towed forward, the two rows of tilling knives 8 horizontally fixed on both sides of the frame 2 move accordingly. Since the facing surfaces of the two rows of tilling knives 8 are arc-shaped structures, and the ends of the two rows of tilling knives 8 close to the frame 1 are respectively inclined toward their corresponding fixed plates 7 (so that each two symmetrical tilling knives 8 in the two rows are in an inverted eight-shape), the frame 2 can drive the two rows of tilling knives 8 on both sides to turn the soil toward the two side edges of the ground film laid on the ground during the forward movement, so as to seal the two side edges of the ground film, and cover the soil turned up by the tilling knives 7 on both sides of the ground film laid on the ground, so as to prevent the ground film laid on the ground from being blown up by the wind during the laying process, thereby affecting the film laying effect.

[0041] In a preferred embodiment of the present invention, the unwinding assembly 6 comprises: a screw 601, a limiting plate 602 and a clamping head 603; wherein,

[0042] Threaded holes matching the screw rod 601 are horizontally penetrated on both sides of the U-shaped bracket 5, and a screw rod 601 is horizontally threadedly fixed on each threaded hole. Limiting plates 602 are coaxially and rotatably provided at the adjacent ends of the two screw rods 601, and conical clamping heads 603 are horizontally fixed on the facing surfaces of the two limiting plates 602.

[0043] In the above scheme, the rolled ground film generally includes: a cylinder and the ground film wound on the cylinder, such as Figure 5As shown, during the assembly process, one end of the rolled-up mulch is put on the clamping head 603, and then the other screw rod 601 is rotated so that the limiting plate 602 and the clamping head 603 on the screw rod 601 are close to the mulch put on the other clamping head 603, and the clamping head 603 on the screw rod 601 is rotated until the clamping head 603 on the screw rod 601 extends into the cylinder from the other end of the mulch film, and the two ends of the mulch film are respectively against the two limiting plates 602 on the two screw rods 601, and then the two screw rods 601 are rotated at the same time to drive the mulch film assembled between the two to move in the horizontal direction until the mulch film is in the middle of the bracket 5.

[0044] In addition, since the two screw rods 601 can be rotated to make the distance between the two limit plates 602 at their ends and the two clamps 603 on the two limit plates 602 adjustable, ground films of different widths can be installed, thereby improving the practicality of the entire device.

[0045] In addition, since the screw rod 601 and the limiting plate 602 are rotationally connected, when the screw rod 601 is rotated, the limiting plate 602 will not rotate therewith.

[0046] In a preferred embodiment of the present invention, the device further comprises an adjusting mechanism for adjusting the spacing between the two rows of the tilling blades 8 on the two fixing plates 7, wherein the adjusting mechanism comprises: an electric telescopic rod 9 and a connecting plate 10; wherein,

[0047] At least one electric telescopic rod 9 is horizontally fixedly provided on each of the fixed plates 7, and a connecting plate 10 parallel to the fixed plate 7 is horizontally fixedly provided on the telescopic end of the electric telescopic rod 9 facing away from the soil-turning knife 8, and each of the soil-turning knives 8 passes horizontally through the avoidance hole on the fixed plate 7 through at least one connecting rod and is fixed on the connecting plate 10.

[0048] In the above scheme, in this embodiment, the number of the tilling knives 8 in a row on each of the fixing plates 7 is at least two or more.

[0049] When in use, the electric telescopic rod 9 is activated to push the two connecting plates 10 to approach the fixed plate 7 respectively, so as to drive the two rows of tilling knives 8 to approach each other through the connecting rod, so that the distance between the two rows of tilling knives 8 becomes smaller, so as to cooperate with the pair of unwinding components 6 to adapt to the laying of a mulch with a smaller width. Conversely, the electric telescopic rod 9 is activated to push the two connecting plates 10 away from the fixed plate 7 respectively, so as to drive the two rows of tilling knives 8 to approach the corresponding fixed plates 7 respectively through the connecting rod, so as to increase the distance between the two rows of tilling knives 8, so as to cooperate with the pair of unwinding components 6 to adapt to the laying of a mulch with a larger width.

[0050] In a preferred embodiment of the present invention, the electric telescopic rod 9 is a servo electric cylinder.

[0051] In the above scheme, the servo electric cylinder is a modular product that integrates the servo motor and the lead screw. Its speed is 0.1 to 2 m / s. Because of the closed-loop servo control, the control accuracy is high. It has the characteristics of low cost and flexible configuration, and is the best substitute for hydraulic cylinders and air cylinders.

[0052] The use of the servo electric cylinder facilitates assembly on the one hand and has high precision on the other hand, thereby improving the spacing precision between the two rows of soil turning knives 8 .

[0053] In a preferred embodiment of the present invention, each of the annular film pressing wheels 4 is coaxially fixed to the rotating shaft 2 through a buffer connector 14, and the buffer connector 14 includes: a buffer seat 1401, a buffer plate 1402, a buffer spring 1403 and a buffer rod 1404; wherein,

[0054] A fixing sleeve 3 is coaxially fixed on the rotating shaft 2, and a plurality of buffer seats 1401 are vertically fixedly arranged on the fixing sleeve 3 at equal intervals along its circumferential direction, and a buffer plate 1402 is slidably arranged inside each of the buffer seats 1401, a buffer spring 1403 capable of extending from an opening of the buffer seat 1401 is vertically fixed on one side of the buffer plate 1402, the free end of the buffer spring 1403 is fixed on the inner wall of the film pressing wheel 4, a buffer spring 1403 is fixedly arranged on the other side of the buffer plate 1402, and the free end of the buffer spring 1403 is fixedly arranged on the buffer seat 1401.

[0055] In the above scheme, when in use, when the ground becomes uneven, under the action of the buffer connection assembly 14, each of the laminating wheels 4 can be appropriately raised and lowered in the longitudinal direction, and the lifting process will not affect the rotation of the laminating wheel 4 with the rotating shaft 2.

[0056] In a preferred embodiment of the present invention, at least two No. 2 running wheels 12 are vertically and rotatably provided on both sides of the mounting frame 13 .

[0057] In the above scheme, the second walking wheel 12 plays the role of supporting the bracket 5, the unwinding assembly 6 on the bracket 5, and the ground film assembled on the unwinding assembly 6. In addition, during the traction process of the entire device, the second walking wheel 12 can be driven to roll on the ground.

[0058] In a preferred embodiment of the present invention, a traction seat 15 capable of being assembled with a traction machine is fixedly provided on one side of the bracket 5 away from the frame 1 , and a plurality of assembly holes are vertically and penetrated through the traction seat 15 .

[0059] In the above scheme, when in use, the entire device is connected to a tractor or other traction machine through the traction seat 15 to pull the entire device to move and move forward, thereby increasing the forward power of the entire device.

[0060] In summary, the ground film laying device provided by the present invention overcomes the problem in the prior art that during the laying process, the ground film laid on the ground will be blown up by the wind because the two sides of the ground film are not fixed, resulting in film laying failure and reduced film laying effect.

[0061] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0062] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0063] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A ground film laying device, characterized in that: The device comprises: a frame (1), a film pressing wheel (4), an unwinding assembly (6) and a film covering mechanism; A rotating shaft (2) is horizontally and rotatably arranged inside the frame (1) connected to the tractor, and a row of film pressing wheels (4) for pressing the ground film so that the ground film contacts the ground are coaxially fixedly arranged at equal intervals on the rotating shaft (2). The two ends of the rotating shaft (2) respectively pass through the two sides of the frame (1) and are coaxially fixedly provided with a No. 1 walking wheel (11). A bracket (5) is fixedly arranged on one side of the frame (1) close to the tractor through a mounting frame (13), and a pair of unwinding assemblies (6) with adjustable spacing are arranged inside the bracket (5) so that ground films of different sizes can be assembled between the pair of unwinding assemblies (6). The film covering mechanism comprises: a fixing plate (7) and a soil turning knife (8); wherein, Fixed plates (7) are respectively fixedly arranged horizontally on both sides of the frame (1), and two rows of tilling knives (8) with adjustable spacing are respectively arranged horizontally and at intervals on the facing surfaces of the two fixed plates (7). The blade surface of each tilling knife (8) is an arc-shaped structure, and the end of each tilling knife (8) close to the frame (1) is inclined toward the fixed plates (7) to till the soil on both sides of the ground film and cover both sides of the ground film to seal the ground after laying.

2. The ground film laying device according to claim 1, characterized in that: The unwinding assembly (6) comprises: a screw (601), a limiting plate (602) and a clamping head (603); wherein: Threaded holes matching the screw rods (601) are respectively provided horizontally through both sides of the U-shaped bracket (5), and a screw rod (601) is respectively fixedly provided in a horizontal thread in each threaded hole, and limiting plates (602) are respectively coaxially and rotatably provided at the adjacent ends of the two screw rods (601), and conical clamping heads (603) are respectively fixedly provided horizontally on the facing surfaces of the two limiting plates (602).

3. The ground film laying device according to claim 1, characterized in that: The device also includes an adjustment mechanism for adjusting the spacing between the two rows of soil turning knives (8) on the two fixing plates (7), the adjustment mechanism including: an electric telescopic rod (9) and a connecting plate (10); wherein: At least one electric telescopic rod (9) is fixedly and horizontally penetrated on each of the fixing plates (7), and a connecting plate (10) parallel to the fixing plate (7) is fixedly and horizontally disposed on the telescopic end of the electric telescopic rod (9) facing away from the tilling blade (8). Each tilling blade (8) passes horizontally through the avoidance hole on the fixing plate (7) via at least one connecting rod and is fixed on the connecting plate (10).

4. The ground film laying device according to claim 3, characterized in that: The electric telescopic rod (9) is a servo electric cylinder.

5. The ground film laying device according to claim 1, characterized in that: Each of the annular film pressing wheels (4) is coaxially fixed on the rotating shaft (2) via a buffer connecting member (14), and the buffer connecting member (14) comprises: a buffer seat (1401), a buffer plate (1402), a buffer spring (1403) and a buffer rod (1404); wherein, A fixing sleeve (3) is coaxially fixed on the rotating shaft (2), and a plurality of buffer seats (1401) are evenly spaced and vertically fixed on the fixing sleeve (3) along its circumferential direction, and a buffer plate (1402) is slidably arranged inside each of the buffer seats (1401), a buffer spring (1403) capable of extending from an opening of the buffer seat (1401) is vertically fixed on one side of the buffer plate (1402), the free end of the buffer spring (1403) is fixed on the inner wall of the film pressing wheel (4), and a buffer spring (1403) is fixed on the other side of the buffer plate (1402), the free end of the buffer spring (1403) is fixed on the buffer seat (1401).

6. The ground film laying device according to claim 1, characterized in that: At least two No. 2 running wheels (12) are respectively arranged vertically and rotatably on both sides of the mounting frame (13).

7. The ground film laying device according to claim 1, characterized in that: A traction seat (15) capable of being assembled with a traction machine is fixedly provided on one side of the bracket (5) away from the frame (1), and a plurality of assembly holes are vertically and penetratingly provided on the traction seat (15).

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