Fixing device for mulching film laying

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a fixing device for mulching film laying, which comprises a frame body, and a handle is arranged at the upper part of the frame body; the film pressing assembly is arranged on one side of the frame body and comprises a pressing frame, a hanging plate and a pressing plate, the pressing frame is in bolted connection with the frame body through the hanging plate, and the pressing plate is fixed to one side of the pressing frame through screws and used for pressing the mulching film; the film cutting assembly is arranged on one side of the frame body and comprises a supporting frame, a guide rod, a guide sleeve, a first spring, a pedal and a cutting board, the supporting frame is in sliding connection with the guide sleeve through the guide rod, the first spring is connected with the frame body and the supporting frame to keep the supporting frame to normally separate the mulching film, and the pedal drives the supporting frame to descend to enable the cutting board to cut the mulching film; the film turning assembly is arranged on the side, away from the film cutting assembly, of the frame body and comprises a supporting pipe, a ground anchor, a pipe pulling device and a second spring, the supporting pipe is rotationally connected to the frame body, the ground anchor is adjustably fixed to the supporting pipe, the pipe pulling device drives the supporting pipe to rotate through a pull rope so as to turn over the mulching film, and the second spring is used for resetting the supporting pipe.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery, and more particularly to a fixing device for laying mulch film, specifically used to perform pressing, cutting and turning operations during the mulch film laying process, so as to improve laying efficiency and quality. Background Technology

[0002] Mulching technology is widely used in agricultural production, effectively retaining heat and moisture, and suppressing weed growth. Traditional mulching methods rely mainly on manual labor or simple mechanical assistance, which presents the following problems and drawbacks:

[0003] Insufficient stability of plastic film pressing: Existing plastic film laying devices (such as "a plastic film pressing device" disclosed in CN201520123456.7) usually adopt a single pressing plate structure, which results in uneven pressing force, causing the plastic film to easily shift or loosen during the laying process, affecting the laying effect.

[0004] The film cutting operation is cumbersome: Some equipment (such as the "a film cutting device" disclosed in CN201820987654.3) requires film cutting separately, which involves many steps and the cutting blade is prone to wear, resulting in incomplete cutting or tearing of the film, increasing the workload of manual adjustment.

[0005] Lack of film-turning function: In the existing technology, the cut film and the uncut part need to be separated manually. There is a lack of automated film-turning mechanism (such as the "film laying machine" disclosed in CN201710654321.0, which only has the laying function), resulting in low work efficiency and high labor intensity.

[0006] In response to the above problems, it is particularly important to develop a fixing device for laying mulch film that can integrate the functions of pressing, cutting and turning the film. Utility Model Content

[0007] The problem this application aims to solve is that existing plastic film laying devices suffer from unstable film pressing, inconvenient film cutting, and the need for manual operation for film turning.

[0008] To address the aforementioned technical problems, this application provides a fixing device for laying mulch film, comprising a frame with a handle at the top; a film pressing assembly located on one side of the frame, including a pressing frame, a hanging plate, and a pressing plate, wherein the pressing frame is bolted to the frame via the hanging plate, and the pressing plate is fixed to one side of the pressing frame with screws for pressing the mulch film; a film cutting assembly located on one side of the frame, including a support frame, a guide rod, a guide sleeve, a first spring, a pedal, and a blade, wherein the support frame is slidably connected to the guide sleeve via the guide rod, the first spring connects the frame and the support frame to keep the support frame normally separated from the mulch film, and the pedal drives the support frame to descend so that the blade cuts the mulch film; and a film flipping assembly located on the side of the frame away from the film cutting assembly, including a support tube, an anchor, a tube puller, and a second spring, wherein the support tube is rotatably connected to the frame, the anchor is adjustablely fixed to the support tube, the tube puller drives the support tube to rotate via a pull rope to flip the mulch film, and the second spring is used to reset the support tube.

[0009] Because the fixing device of this application is designed with a film pressing assembly, a film cutting assembly, and a film flipping assembly, it can not only apply pressure evenly through the pressure plate of the film pressing assembly to prevent the mulch film from shifting, but also achieve one-button operation of the film cutting assembly and ensure thorough cutting with the serrated blade plate, and achieve automatic separation of the mulch film through the linkage of the support pipe and the pull pipe device of the film flipping assembly, thereby reducing manual intervention and solving the problems of unstable film pressing, inconvenient film cutting, and the need for manual operation of film flipping in the existing mulch film laying devices. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the fixing device.

[0011] Figure 2 This is a schematic diagram of the membrane pressing assembly.

[0012] Figure 3 This is a schematic diagram of the film cutting assembly.

[0013] Figure 4 This is a schematic diagram of the structure of the film-flipping assembly.

[0014] Figure 5 This is a schematic diagram of a pipe puller.

[0015] In the diagram: 1. Frame; 2. Film pressing assembly; 21. Pressing frame; 22. Hanging plate; 23. Pressing plate; 3. Film cutting assembly; 31. Support frame; 32. First spring; 33. Guide rod; 34. Guide sleeve; 35. Pedal; 36. Blade plate; 4. Film turning assembly; 41. Support tube; 42. Pull rope; 43. Second spring; 44. Row of nails; 45. Single nail; 46. Pipe puller; 461. Pull rod; 462. Third spring; 463. Handle; 464. Paddle; 465. Clamping plate; 466. Protrusion; 467. Connecting rod. Detailed Implementation

[0016] The mulch film laying fixing device of this embodiment is designed to facilitate convenient pressing, cutting, and turning of the mulch film during the laying process, thereby improving the efficiency and quality of mulch film laying. The fixing device mainly consists of a frame 1 that provides basic support and multiple functional components mounted on the frame 1, such as… Figure 1-5 As shown, frame 1 serves as the basic support structure for the entire fixing device, providing an installation platform for other components. Frame 1 is made of high-strength, corrosion-resistant metal material to ensure sufficient strength and stability to withstand various external forces during the laying of the mulch film. The shape of frame 1 is designed as a cuboid frame structure, which ensures sufficient support area while facilitating carrying and operation. At one end of the upper part of frame 1, there is a handle, also made of metal material, with both ends fixed to frame 1 by welding. The surface of the handle is treated with anti-slip material, such as anti-slip texture or anti-slip rubber sleeve, so that operators can easily lift the fixing device during the laying of the mulch film. The handle allows operators to easily move the fixing device from one position to another, improving the portability and operational flexibility of the device.

[0017] To facilitate the pressing operation during the mulch film laying process and prevent the mulch film from shifting position during traction by agricultural machinery, a pressing assembly 2 is arranged side-by-side on one side of the frame. The pressing assembly 2 mainly includes a pressing frame 21, a hanging plate 22, and a pressing plate 23. The pressing frame 21 is located on one side of the frame 1 and has a rectangular frame structure. It is made of the same metal material as the frame 1. The size of the pressing frame 21 is designed according to the width of the mulch film and actual usage requirements to ensure that one end of the mulch film can be effectively pressed down. The pressing frame 21 is connected to the frame 1 by a hanging plate 22 arranged on top of the pressing frame 21. There are two hanging plates 22, which are spaced apart and symmetrically arranged on the upper part of the pressing frame 21. The hanging plates 22 are made of metal sheet and have bolt holes at both ends. One end of the hanging plate 22 is fixedly connected to the pressing frame 21 by bolts, and the other end is also fixedly connected to the frame 1 by bolts. This bolt connection method not only ensures the firmness of the connection between the pressing frame 21 and the frame 1, but also facilitates the disassembly and maintenance of the pressing assembly 2 when needed.

[0018] Pressure plates 23 are arranged side-by-side on one side of the pressure frame 21. Their number can be adjusted according to actual needs. The pressure plates 23 are thin, plate-like structures made of a metal material with a certain degree of hardness and elasticity, such as stainless steel. The pressure plates 23 are connected to the pressure frame 21 by screws spaced apart along their length. During installation, the pressure plates 23 are first placed in their corresponding positions on the pressure frame 21, and then fixed together with the screws. By adjusting the tightness of the screws, the relative position between the pressure plates 23 and the pressure frame 21 can be finely adjusted to ensure the pressure plates 23... The pressure plate 23 has a straight lower edge along its length, which allows for better contact with the mulch film. Its surface is polished to make it smooth and flat. During the mulch film laying process, the fixing device is placed at one end of the mulch film, so that the lower edge of the pressure plate 23 along its length abuts against one end of the mulch film laid on the ground. Due to the weight of the fixing device, the pressure plate 23 will apply a downward pressure to the mulch film, thereby preventing the mulch film from shifting position during the laying process. This pressing method is simple and effective, which can ensure the stability of the mulch film during the laying process and improve the quality of mulch film laying.

[0019] To facilitate the film cutting operation after the mulch film is laid, a film cutting assembly 3 is arranged on one side of the frame. The film cutting assembly 3 mainly includes a support frame 31, a first spring 32, a guide rod 33, a guide sleeve 34, a pedal 35, and a blade 36. The support frame 31 is located on one side of the frame 1 and is a rectangular frame structure made of metal. The size of the support frame 31 is slightly larger than the width of the mulch film to ensure complete coverage of the cutting area. The guide sleeves 34 are symmetrically arranged on the upper part of the frame 1 and are fixed by spring pins. The guide sleeves 34 are made of metal tubing, and their inner diameter matches the outer diameter of the guide rod 33. Two guide rods 33 are arranged on both sides of the upper part of the frame 1 to guide the sliding of the guide rods 33. The upper part of the support frame 31 is symmetrically arranged with guide rods 33 that are slidably connected to the guide sleeve 34. The guide rods 33 are made of metal rods with smooth surfaces to reduce friction with the guide sleeve 34. The lower end of the guide rod 33 is fixedly connected to the support frame 31, and the upper end is inserted into the guide sleeve 34. By sliding the guide rod 33 vertically inside the guide sleeve 34, the support frame 31 can be guided to perform directional vertical lifting and lowering operations. This guiding structure ensures the stability of the support frame 31 during the lifting and lowering process, making the film cutting operation more accurate.

[0020] To prevent the support frame 31 from contacting the mulch film under normal conditions, multiple first springs 32 are spaced apart on the upper part of the frame 1 and connected to it. The first springs 32 are tension springs made of high-quality spring steel, possessing good elasticity and durability. Both the frame 1 and the support frame 31 have through holes at their ends, through which both ends of the first springs 32 are fixedly connected to the frame 1 and the support frame 31. Under normal conditions, the first springs 32 are in a stretched state, and their tension keeps the support frame 31 separated from the mulch film, thus preventing unnecessary wear or damage to the mulch film caused by the support frame 31 and the blade plate 36. To facilitate the vertical descent of the support frame 31, an upward-extending pedal 35 is arranged in the middle of the upper part of the support frame 31. The pedal 35 is made of metal sheet, is rectangular in shape, and has an anti-slip surface. The lower end of the pedal 35 is fixedly connected to the support frame 31 by bolts to form an integral structure. The operator can control the descent of the support frame 31 by stepping on the pedal 35. When the pedal 35 is stepped on, the support frame 31 will be subjected to a downward force, which will overcome the tension of the first spring 32 and begin to move downward. At the same time, the first spring 32 will be further stretched, thereby accumulating the elastic force to reset the support frame 31.

[0021] A blade 36, bolted to one side of the support frame 31, is also provided. The blade 36 is made of a high-hardness, sharp metal material, such as alloy steel. The lower edge of the blade 36 is serrated. This serrated design increases the friction between the blade 36 and the mulch film, improving the cutting effect. The lower edge of the blade 36 is lower than the lower edge of the support frame 31 to ensure that when the support frame 31 falls and contacts the mulch film, the blade 36 can effectively cut the mulch film. When the mulch film needs to be cut after it has been laid, the operator first removes the fixing device from the pressure... The film is lifted and then moved to the position to be cut before being lowered. Next, the pedal 35 is pressed, which drives the support frame 31 and the blade 36 on one side to fall vertically. During the fall of the blade 36, its serrated lower edge will contact the film and cut it as the support frame 31 continues to fall. To ensure that the film is cut completely, the number of times the pedal is pressed can be increased as appropriate. After the cutting is completed, the pedal 35 is released, and the elastic force of the first spring 32 will reset the support frame 31 and the blade 36 to their normal positions, ready for the next film cutting operation.

[0022] To enable the flipping and separation operation between the cut mulch film and the laid mulch film, a film-flipping assembly 4 is arranged on the other side of the frame. The film-flipping assembly 4 mainly includes a support tube 41, a pull rope 42, a second spring 43, anchors, and a puller 46. The support tube 41 is arranged on the other side of the frame 1 and can rotate around it. The lower end of the frame 1 is provided with a slot for inserting the support tube 41. One end of the support tube 41 is inserted into the slot and is rotatably connected to the frame 1 through a bearing or bushing. This rotatable connection allows the support tube 41 to rotate freely on the frame 1, providing a basis for the mulch film flipping operation. Anchors are sleeved on the upper part of the support tube 41 and the tightness is adjusted by bolts to adjust the position of the anchors on the upper part of the support tube 41. The anchors are divided into two types: row anchors 44 and single anchors 45 to meet different usage requirements.

[0023] The nail bar 44 has seven vertically downward-pointing nail bodies and a sleeve that fits into the support tube 41. The nail bodies are made of high-strength, sharp metal materials, such as stainless steel, allowing them to be easily inserted into the mulch film and soil. The sleeve is made of sheet metal and is rectangular in shape, with an internal through hole that matches the outer diameter of the support tube 41. The inner diameter of the sleeve is adjusted by a horizontally placed bolt at its top. When the bolt is tightened, the friction between the sleeve and the support tube 41 increases, thus fixing the nail bar 44 in the corresponding position on the support tube 41; when the bolt is loosened, the sleeve... The friction between the nail and the support tube 41 is reduced, allowing the nail 44 to slide on the support tube 41 and adjust its position. The single nail 45 has a vertically downward nail body and a ring that fits into the support tube 41. The material and shape of the nail body are the same as those of the nail body of the nail 44. The ring is made of a metal ring, and its inner diameter is adapted to the outer diameter of the support tube 41. The ring is adjusted by a bolt that passes through its surface and abuts against the outer wall of the support tube 41. By adjusting the friction between the bolt and the support tube 41, the position of the single nail 45 on the support tube 41 can be fixed and adjusted.

[0024] The upper part of the frame 1 is also equipped with a pipe puller 46 that can drive the support pipe 41 to rotate circumferentially, so that the anchor nail is inserted into the mulch film and the mulch film is flipped. The pipe puller 46 includes a pull rod 461, a third spring 462, a handle 463, a paddle 464, and a locking plate 465. The pull rod 461 is arranged on one side of the frame 1 and is hinged to it. The upper part of the frame 1 is equipped with a pin that is connected to the pull rod 461. The pull rod 461 can rotate around the frame 1 through the pin. The pull rod 461 is made of metal rod, and its length and strength are designed according to actual needs. One end of the pull rod 461 is equipped with a handle 463 that is hinged to it and can rotate horizontally. The handle 463 is made of metal or plastic material, and its shape conforms to the ergonomic principle, making it easy for operators to hold and operate. The handle 463 is connected to the pull rod 461 by a hinge, so that the handle 463 can rotate freely in the horizontal direction.

[0025] A lever 464, hinged to the middle of the pull rod 461 and capable of vertical rotation, is arranged on one side. The lever 464 is made of sheet metal, with a protrusion 466 forming outward on one side. A locking plate 465, made of sheet metal and with a smooth surface, is vertically arranged on the upper part of the frame 1 to match the protrusion 466. A third spring 462 is also arranged between the lever 464 and the pull rod 461. Both the lever 464 and the pull rod 461 have through holes at their upper parts, through which the ends of the third spring 462 pass. The two ends of the third spring 462 are respectively inserted into these two through holes. The elastic force of the three springs 462 keeps the paddle 464 in a taut state. That is, the paddle 464 is subjected to a force in the direction of the locking plate 465 under normal conditions. A connecting rod 467 is arranged between the handle 463 and the paddle 464. The connecting rod 467 is made of metal rod, and its two ends are hinged to the handle 463 and the paddle 464 respectively. When the lever 461 rotates, the protrusion 466 moves with the movement of the lever 461. When the protrusion 466 is engaged with the locking plate 465, the lever 461 can be locked. At this time, the lever 461 cannot be reset.

[0026] When the film-turning operation is required, the operator moves the handle 463, which drives the lever 464 to rotate around the pull rod 461 via the connecting rod 467. As the lever 464 rotates, the protrusion 466 on it separates from the clamping plate 465. At this time, the second spring 43 drives the support tube 41 to circumferentially reset. Since the anchor has been inserted into the film, the rotation of the support tube 41 will drive the anchor and the film to rotate synchronously, thereby achieving the separation between the cut film and the laid film. After the film-turning operation is completed, the operator releases the handle 463, and the elastic force of the third spring 462 will pull the lever 464 to return it to its initial position, so as to facilitate the next engagement with the clamping plate 465. In this way, the film-turning and separation operation after the film is cut is completed.

[0027] The upper part of the frame 1 is also equipped with a pull rope 42 and a second spring 43 connected to the support pipe 41. One end of the pull rope 42 is connected to the pipe puller 46, specifically to the part on the pull rod 461 used to connect the pull rope 42. The other end of the pull rope 42 is wrapped around the support pipe 41 and then pressed and fixed by bolts with washers. This connection method ensures the firmness of the connection between the pull rope 42 and the support pipe 41, and also facilitates the disassembly and replacement of the pull rope 42 when needed. The upper part of the frame 1 has an opening through which the second spring 43 passes. The second spring 43 is connected to the other end of the pull rope 42 through the end hole. The second spring 43 is a tension spring, and its material and performance are similar to those of the first spring 32. When the puller 46 pulls the pull rope 42, the pull rope 42 will drive the support pipe 41 to rotate around the frame 1. During the rotation of the support pipe 41, the second spring 43 will stretch and store force as the support pipe 41 rotates. When the puller 46 is released, the elastic force of the second spring 43 will cause the support pipe 41 to circumferentially reset, driving the anchor and the ground film back to the initial position.

[0028] In summary, the mulch film laying fixing device of this embodiment, through the rational design of the structure and working principle of the frame 1, film pressing component 2, film cutting component 3, and film turning component 4, realizes convenient film pressing, film cutting, and film turning operations during the mulch film laying process. This device has the advantages of simple structure, convenient operation, and stable performance, which can effectively improve the efficiency and quality of mulch film laying, reduce labor intensity, and has broad application prospects. In actual use, operators can flexibly adjust the position and parameters of each component according to different mulch film laying needs and actual conditions to achieve the best use effect. At the same time, the components of this device adopt a detachable connection method, which facilitates maintenance and replacement and reduces the cost of use.

[0029] The following details the specific usage of the fixing device for laying mulch film in Example 1. Through the following steps, the pressing, cutting, and turning operations during mulch film laying can be completed efficiently and accurately. Before using this fixing device, a comprehensive inspection must be conducted to ensure that all components are securely connected and free from looseness or damage. Specific inspection items include: checking whether the frame 1 is deformed or cracked to ensure its structural integrity; checking whether the connection between the pressing frame 21, hanging plate 22, and pressing plate 23 in the pressing assembly 2 is tight, and whether the surface of the pressing plate 23 is smooth and free of foreign objects; checking whether the sliding of components such as the supporting frame 31, guide rod 33, and guide sleeve 34 in the cutting assembly 3 is smooth, whether the elasticity of the first spring 32 is normal, and the connection between the pedal 35 and the supporting frame 31. Check whether it is stable, whether the blade 36 is sharp and firmly installed; check whether the support tube 41 of the film-turning assembly 4 rotates flexibly, whether the anchors are installed correctly and without looseness, whether the pull rod 461, handle 463, and lever 464 of the pipe puller 46 move flexibly, and whether the connection between the pull rope 42 and the second spring 43 is reliable. At the same time, prepare the mulch film to be laid, place the mulch film roll in a suitable position, and ensure that the mulch film can be unfolded smoothly. According to the width of the mulch film and the laying requirements, adjust the position of each component on the fixing device, such as adjusting the relative position of the pressure plate 23 and the pressure frame 21 in the film-pressing assembly 2 to ensure that the pressure plate 23 can accurately press the edge of the mulch film; adjust the position of the anchors in the film-turning assembly 4 on the support tube 41 to meet the actual film-turning requirements.

[0030] Place the fixing device at the starting position of the mulch film laying, with one side of the pressing assembly 2 facing the mulch film. The operator holds the handles with both hands and gently lifts the fixing device, keeping it a certain distance from the ground. Then, place one end of the mulch film under the pressing frame 21, ensuring that the edge of the mulch film is flat and wrinkle-free. Slowly lower the fixing device so that the lower edge of the pressing plate 23 along its length abuts against one end of the mulch film laid on the ground. Due to the fixing device's own weight, the pressing plate 23 will apply a downward pressure to the mulch film, pressing it firmly onto the ground. At this time, the mulch film is fixed by the pressing assembly 2 of the fixing device and will not shift its position during subsequent agricultural machinery traction and laying. During the pressing process, the operator can make minor adjustments to the position of the fixing device according to the actual situation to ensure that the mulch film is pressed flat and firmly. If the mulch film is found to be shifted or not pressed tightly, the fixing device can be lifted again, the position of the mulch film readjusted, and the pressing operation repeated.

[0031] After the mulch film is laid to the required length, a cutting operation is required. First, the operator holds the handles with both hands and gently lifts the fixing device from the pressing position to separate the pressing assembly 2 from the mulch film. Then, the fixing device is moved to the cutting position, i.e., above the end of the mulch film, and slowly lowered so that the cutting assembly 3 is directly above the mulch film. At this time, the support frame 31 is in a position separated from the mulch film under the tension of the first spring 32. The operator steps on the pedal 35, which drives the support frame 31 and the blade plate 36 on one side to fall vertically. As the frame falls, the first spring 32 will be stretched further, accumulating elastic force to reset the support frame 31. The serrated lower edge of the blade 36 will contact the mulch film and cut it as the support frame 31 continues to fall. To ensure that the mulch film is cut completely, the operator can appropriately increase the number of times the pedal 35 is stepped on according to the actual situation. During the stepping on the pedal 35, the force should be kept even to avoid excessive force that may damage the fixing device or cause the mulch film to be cut unevenly. After the cutting is completed, the pedal 35 is released, and the elastic force of the first spring 32 will reset the support frame 31 and the blade 36 to their normal positions.

[0032] After the plastic film is cut, a film-turning operation is required to separate the cut plastic film from the already laid plastic film. When the fixing device is in place, the operator operates the pipe puller 46 to rotate the support pipe 41 around the frame 1, causing the anchor to insert into the plastic film. The operator holds the handle 463 and pulls the pull rod 461 away from the clamping plate 465. During the pulling of the pull rod 461, the paddle 464 rotates with the pull rod 461. When the protrusion 466 on the paddle 464 engages with the clamping plate 465, the pull rod 461 is locked. At this time, the support pipe 41 begins to rotate under the traction of the pull rope 42. The anchor gradually inserts into the plastic film as the support pipe 41 rotates. The tension on the pull rod 461 is maintained, causing the support pipe 41 to continue rotating. The anchor drives the plastic film to perform a synchronous flipping operation. After the plastic film is flipped to the required angle, the operator moves the handle 463. The handle 463 drives the paddle 464 to rotate around the pull rod 461 via the connecting rod 467, causing the protrusion 466 on the paddle 464 to separate from the clamping plate 465. At this time, the elastic force of the second spring 43 takes effect, driving the support tube 41 to circumferentially reset. The anchor also drives the plastic film back to the vicinity of the initial position as the support tube 41 resets. However, since the plastic film has been cut, the cut plastic film is now separated from the laid plastic film. The operator removes the separated cut plastic film from the anchor, completing one full plastic film flipping operation. If it is necessary to continue laying plastic film, the fixing device can be placed back in the new starting position, and the pressing, laying, cutting and flipping operations can be performed again according to the above steps.

[0033] After the mulch film laying is completed, the operator lifts the fixing device from the mulch film, checks each component for damage or areas requiring cleaning, cleans the blade 36 to remove any remaining mulch film fragments to ensure its sharpness, and stores the fixing device in a dry, ventilated place to prevent it from getting damp, rusting, or suffering other damage. Through the detailed usage methods described above, operators can fully utilize the mulch film laying fixing device of this embodiment to efficiently and accurately complete various operations during the mulch film laying process, improving the quality and efficiency of mulch film laying, reducing labor intensity, and at the same time, the standardized usage methods also help extend the service life of the fixing device and reduce usage costs.

Claims

1. A fixing device for laying plastic film, characterized in that: include The frame has a handle at the top; The membrane pressing assembly is located on one side of the frame and includes a pressing frame, a hanging plate, and a pressing plate. The pressing frame is bolted to the frame via the hanging plate, and the pressing plate is fixed to one side of the pressing frame with screws for pressing the mulch film. The film cutting assembly is located on one side of the frame and includes a support frame, a guide rod, a guide sleeve, a first spring, a pedal, and a blade. The support frame is slidably connected to the guide sleeve through the guide rod. The first spring connects the frame and the support frame to keep the support frame normally separated from the mulch film. The pedal drives the support frame to descend so that the blade can cut the mulch film. The film-turning assembly, located on the side of the frame away from the film-cutting assembly, includes a support tube, anchors, a tube puller, and a second spring. The support tube is rotatably connected to the frame, the anchors are adjustable and fixed on the support tube, the tube puller drives the support tube to rotate via a pull rope to turn the film over, and the second spring is used to reset the support tube.

2. The fixing device for laying mulch film according to claim 1, characterized in that: The anchor includes a row of anchors and a single anchor. The row of anchors has 7 anchor bodies and an adjustable plate sleeve, and the single anchor has 1 anchor body and an adjustable ring sleeve.

3. The fixing device for laying mulch film according to claim 1, characterized in that: The pipe puller includes a pull rod, a handle, a paddle, a locking plate, and a third spring. The paddle is engaged with the locking plate via the third spring to lock the pull rod.

4. The fixing device for laying mulch film according to claim 3, characterized in that: The handle is hinged to the pull rod, and a connecting rod is provided between the two to link the paddle.

5. The fixing device for laying mulch film according to claim 1, characterized in that: The guide sleeve is fixed to the upper part of the frame by spring pin insertion.

6. The fixing device for laying mulch film according to claim 1, characterized in that: Both the first spring and the second spring are tension springs.

7. The fixing device for laying mulch film according to claim 1, characterized in that: The support tube is rotatably connected to the frame via bearings or bushings, and the pull rope is fixed to the support tube by bolts with washers.

8. The fixing device for laying mulch film according to claim 1, characterized in that: The film cutting assembly and the film pressing assembly are located on the same side of the frame.

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