Mulch film installation mechanism for rice seedling transplantation

Abstract

This invention provides a mulch film installation mechanism for rice transplanters, relating to the field of agricultural planting. The mechanism involves installing a horizontal mulch film tube below a rice transplanter, with the mulch film wound around it. It includes a crossbeam, with a connecting component one connected to the top left end and a positioning mechanism connected to the right end. Two connecting components are symmetrically connected to the top of the crossbeam for connection to the bottom of the rice transplanter. This mulch film installation mechanism consists of a crossbeam, a sleeve, an iron block, and a ring, installed at the bottom of the rice transplanter. An annular groove is formed on the inner side of the ring. Through the cooperation of a fixing ring and a screw, the air ring is connected to the right end of the horizontal mulch film tube, embedding the air ring into the groove of the ring for fixation. The overall structure is simple, making installation and disassembly more convenient and further reducing maintenance costs. It replaces traditional manual laying operations, improving work efficiency and reducing the labor intensity of farmers.

Description

Technical Field

[0001] This invention relates to the field of agricultural planting technology, specifically to a mulch film installation mechanism for rice transplanting. Background Technology

[0002] With the development of science and technology, there are many varieties of rice, including organic rice. Organic rice is generally grown in the western and northern regions. During the cultivation of organic rice, herbicides cannot be used, and weeding can only be done manually. One person can only manage one or two acres of land.

[0003] When farmers grow organic rice, a large number of weeds grow in the paddy fields. These weeds can affect rice growth. To address this, before planting rice, a plastic film is laid on the soil surface. The film covers the soil, and then water is applied, thus preventing weed growth. Furthermore, the plastic film helps to increase the temperature and retain heat, promoting rice growth and increasing yield.

[0004] In rural my country, farming is typically done by family units, making it difficult to afford the high cost of agricultural machinery. For example, laying plastic film used to be extremely laborious; farmers would lift the film by both arms, bend over, and walk backwards along the ridges. Because it was all done manually, the work was inefficient and physically demanding. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a film installation mechanism for rice transplanting, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a mulch film installation mechanism for rice transplanting, wherein a horizontal mulch film tube is installed below a rice transplanter, the mulch film is wound around the horizontal mulch film tube, and a crossbeam is included. A first connector is connected to the top left end of the crossbeam, a positioning mechanism is connected to the right end of the crossbeam, and a second connector is symmetrically connected to the top of the crossbeam. The second connector is used to connect to the bottom of the rice transplanter, and the length of the crossbeam is greater than the width of the rice transplanter.

[0007] The first connecting component is a sleeve, and the second connecting component is an iron block. The sleeve is pivotally connected to the left end of the crossbeam, and the iron block is installed on the top of the crossbeam.

[0008] The positioning mechanism consists of a collar, a fixing ring, a screw, and a gas ring. The collar is connected to the right end of the crossbeam. An annular groove is provided on the inner side of the collar. Multiple support rods are connected between the fixing ring and the gas ring. The gas ring can be embedded in the groove of the collar.

[0009] Pass the horizontal mulch film through the collar, aligning the left end of the horizontal mulch film with the collar. Then, place the fixing ring on the outside of the right end of the horizontal mulch film. Thread the screw through the fixing ring and the right end of the horizontal mulch film. Once the air ring is aligned with the groove of the collar, inflate the air ring.

[0010] Preferably, the second connecting part is a connecting block, and also includes a stone cleaning mechanism. The stone cleaning mechanism includes a rotating rod, multiple plow blades, and multiple steel wires. The rotating rod is arranged above the crossbeam rod, the plow blades are arranged at equal intervals along the length of the rotating rod, and the multiple steel wires are arranged at equal intervals. The ends of the steel wires pass through the plow blades. The connecting block has a through groove, and a motor-driven roller is pivotally connected to the bottom of the inner wall of the groove. The rotating rod passes through the groove and contacts the roller.

[0011] Preferably, tension sensing units are installed on the sides of the two outermost plow blades, and the ends of the steel wires are connected to the tension sensing units.

[0012] Preferably, the connecting component consists of a base, a central gear, a roller, and a positioning block. The side of the base is pivotally connected to the rotating rod, the central gear is pivotally connected below the base, the end of the crossbeam is connected to the shaft end of the central gear, the roller has a toothed groove on its surface, the central gear meshes with the toothed groove of the roller, a belt is connected between the central gear and the roller, the center of the roller is connected to the positioning block, and the right end of the positioning block is connected to the left end of the mulch film horizontal pipe.

[0013] Preferably, the positioning block has a connecting rod extending through it, the connecting rod being arc-shaped, a slider slidingly fitted to the right end of the positioning block, and an interface adapted to the slider being opened at the left end of the mulch film horizontal tube. After one end of the slider is inserted into the interface, it pushes the connecting rod, allowing the connecting rod to pass through the mulch film horizontal tube and the slider.

[0014] Preferably, the positioning block has a vertical sliding cavity, and a ball bearing is provided in the inner wall of the sliding cavity. One end of the inner wall of the ball bearing is connected to a pressure sensing unit.

[0015] Preferably, it also includes a positioning component, which consists of a slide, a motor, a rotating seat, and two screws. The top of the slide is connected to the motor and the rotating seat. The rotating seat is located directly below the motor. The motor drive shaft is connected to the right end of the crossbeam. The right end of the mulch film tube is pivotally connected to the slide. The right end of the mulch film tube enters the rotating seat. The two screws are threaded through the mulch film tube and the rotating seat.

[0016] Preferably, it also includes a slide rail, which is symmetrically arranged on both sides of the crossbeam. The rollers and slide blocks are placed inside the slide rail. The front and rear ends of the slide rail are provided with mating grooves, and the side ends of the slide rail are connected with ring buckles. Multiple slide rails are spliced ​​together through the mating grooves. The mating grooves of two adjacent slide rails fit together and insert inserts are inserted.

[0017] Preferably, it also includes an overlapping strip, one end of which is fixedly connected to the right end of the mulch film horizontal pipe.

[0018] Preferably, it also includes two compaction and covering mechanisms (10), which are located on both sides of the mulch film. The compaction and covering mechanism (10) includes a base plate (101), a toothed ring (102), a motor-driven pinion (103), an extension (104), and a J-shaped plate (105). The end of the mulch film horizontal tube passes through the base plate (101). The toothed ring (102) is pivotally connected to the base plate (101), and the toothed ring (102) and the base plate (101) are arranged in concentric circles. The side of the base plate (101) is connected to the pinion (103), and the pinion (103) meshes with the toothed ring (102). The front side of the toothed ring (102) is connected to the extension (104), and the extension (104) extends forward to the edge of the mulch film and is connected to the J-shaped plate (105).

[0019] Preferably, the lower end of the J-shaped plate (105) is connected to a bending part (1051), the bottom of the J-shaped plate (105) is provided with a hole (1052), and the J-shaped plate (105) is aligned with the edge of the mulch film.

[0020] This invention provides a plastic film installation mechanism for rice transplanting. It has the following beneficial effects:

[0021] 1. This rice transplanter's plastic film installation mechanism consists of a crossbeam, a sleeve, an iron block, and a ring. It is installed at the bottom of the transplanter, with an annular groove on the inner side of the ring. Through the cooperation of a fixing ring and a screw, the air ring is connected to the right end of the horizontal plastic film tube, embedding the air ring into the groove of the ring for fixation. The overall structure is simple, making installation and disassembly more convenient and further reducing maintenance costs. It replaces traditional manual installation, improving work efficiency and reducing the labor intensity of farmers.

[0022] 2. This rice transplanting mulch film installation mechanism also includes a stone removal mechanism. This mechanism comprises a rotating rod, plow blades, and steel wire. The two outermost plow blades are connected to tension sensing units. The plow blades and steel wire form a barrier net. The presence of stones on the soil surface is determined by whether the tension sensing units are under tension. Through the cooperation of connecting blocks and rollers, the rotating rod rotates, causing the barrier net to tilt upwards, throwing the stones forward and keeping them away from the mulch film. This prevents the mulch film from being torn by stones, thus achieving a protective function.

[0023] 3. This rice transplanting mulch film installation mechanism also includes a compaction and soil-covering mechanism. This mechanism consists of a base plate, a gear ring, a motor-driven pinion, an extension section, and a J-shaped plate. The J-shaped plate presses the edges of the mulch film into the soil. During this process, the soil at the edges of the mulch film is easily loosened and collapses into the J-shaped plate. The J-shaped plate is then lifted, and the collapsed soil falls out through the perforations, thus covering the edges of the mulch film with soil. This prevents the mulch film from being blown askew or lifted by the wind after installation and ensures a high compaction rate at the edges of the mulch film. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a first embodiment of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the crossbeam structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the gas cylinder structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the second embodiment of the structure of the present invention;

[0028] Figure 5 This is a partial structural cross-sectional view of the present invention;

[0029] Figure 6 This is a partial structural diagram of the positioning block of the present invention;

[0030] Figure 7 This is a schematic diagram of the connecting block structure of the present invention;

[0031] Figure 8 This is a schematic diagram of the slide structure of the present invention;

[0032] Figure 9 This is a schematic diagram of the plow blade structure of the present invention;

[0033] Figure 10 This is a schematic diagram of the slide rail structure of the present invention;

[0034] Figure 11 This is a schematic diagram of the slide rail structure in embodiment three of the present invention;

[0035] Figure 12 This is a schematic diagram of the compaction and covering soil mechanism of the present invention;

[0036] Figure 13 This is a schematic diagram of the J-shaped plate structure of the present invention.

[0037] In the diagram: 1. Crossbeam, 11. Sleeve, 12. Iron block, 13. Ring, 2. Fixing ring, 21. Screw 1, 22. Support rod, 23. Air ring, 3. Connecting block, 31. Through groove, 32. Roller, 4. Positioning block, 41. Connecting rod, 42. Slider, 43. Sliding cavity, 44. Ball bearing, 45. Pressure sensing unit, 5. Base, 51. Middle gear, 52. Roller, 53. Belt, 6. Rotating rod, 61. Plow blade, 62. Steel wire, 7. Overlapping bar, 8. Slide seat, 81. Motor, 82. Rotating seat, 83. Screw 2, 9. Slide rail, 91. Connecting groove, 92. Ring buckle, 93. Insert plate, 10. Compacting and covering mechanism, 101. Base plate, 102. Gear ring, 103. Small gear, 104. Extension, 105. J-shaped plate, 1051. Bending part, 1052. Leakage hole. Detailed Implementation

[0038] This invention provides a plastic film installation mechanism for rice transplanting. Example 1 is shown below. Figure 1-3 As shown, the horizontal pipe of the plastic film is installed below the rice transplanter. The plastic film is wound on the horizontal pipe. It includes a horizontal beam 1. The top left end of the horizontal beam 1 is connected to a connector 1. The right end of the horizontal beam 1 is connected to a positioning mechanism. The top of the horizontal beam 1 is symmetrically connected to a connector 2. The connector 2 is used to connect to the bottom of the rice transplanter. The length of the horizontal beam 1 is greater than the width of the rice transplanter.

[0039] The first connecting component is a sleeve 11, and the second connecting component is an iron block 12. The sleeve 11 is pivotally connected to the left end of the crossbeam 1, and the iron block 12 is welded to the top of the crossbeam 1. The iron block 12 is welded to the bottom of the rice transplanter, so that the crossbeam 1 is located between the front wheel and the rear wheel of the rice transplanter.

[0040] The positioning mechanism consists of a collar 13, a fixing ring 2, a screw 21, and an air ring 23. The collar 13 is welded to the right end of the crossbeam 1. An annular groove is provided on the inner side of the collar 13. Multiple support rods 22 are fixedly installed between the fixing ring 2 and the air ring 23. The air ring 23 can be embedded in the groove of the collar 13.

[0041] During operation, the horizontal mulch film tube is passed through the collar 13, with the left end of the tube inserted into the sleeve 11. The fixing ring 2 is then placed over the right end of the tube. The screw 21 is threaded through the fixing ring 2 and the right end of the tube. Once the air ring 23 is aligned with the groove in the collar 13, air is inflated into it. After the air ring 23 inflates, it engages with the groove, thus securing the horizontal mulch film tube. The overall structure is simple, making installation and disassembly more convenient, further reducing maintenance costs.

[0042] Example 2, as Figure 4-10 As shown:

[0043] The second connecting component is a connecting block 3, the upper end of which is welded to the bottom of the rice transplanter. It also includes a stone removal mechanism, which includes a rotating rod 6, multiple plow blades 61, and multiple steel wires 62. The rotating rod 6 is arranged above the crossbeam 1. The plow blades 61 are welded at equal intervals along the length of the rotating rod 6. The multiple steel wires 62 are arranged at equal intervals, and the ends of the steel wires 62 pass through the plow blades 61.

[0044] The connecting block 3 has a through groove 31. The lower end of the connecting block 3 is welded to the crossbeam rod body. A motor-driven roller 32 is pivotally connected to the bottom of the inner wall of the through groove 31. The rotating rod 6 passes through the through groove 31 and contacts the roller 32.

[0045] Tension sensing units are fixedly installed on the sides of the two outermost plow blades 61, and the ends of the steel wires 62 are fixedly installed together with the working ends of the tension sensing units. The steel wires 62 are in a state of just tension. In front of the only horizontal pipe of the mulch film, the lower end of the plow blades 61 is just in contact with the soil surface and does not extend into the soil. The tension sensing units are electrically connected to the control module of the rice transplanter.

[0046] Working principle: During the movement, if there are pebbles on the soil surface, when these pebbles touch the steel wire 62, the steel wire 62 is pulled by the force sensing unit after being impacted by the pebbles. The force sensing unit feeds back the information to the control module. When the measured force exceeds the preset value, the surface pebbles are large. At this time, the roller 32 drives the rotating rod 6 to rotate 45°, causing the plow blade 61 to tilt upwards, thus throwing the pebbles forward. Then the roller 32 rotates in the opposite direction, causing the plow blade 61 to return to its original position. This process is repeated continuously, thereby clearing away the pebbles on the soil surface and preventing the mulch film from being torn by the sharp points of the pebbles during the laying process.

[0047] The connecting component consists of a base 5, a middle gear 51, a roller 52, and a positioning block 4. The side of the base 5 is pivotally connected to the rotating rod 6. The middle gear 51 is pivotally connected below the base 5. The end of the crossbeam rod 1 is welded to the shaft end of the middle gear 51. The surface of the roller 52 has tooth grooves. The middle gear 51 meshes with the tooth grooves of the roller 52. A belt 53 is connected between the middle gear 51 and the roller 52 for transmission. The center of the roller 52 is fixedly installed to the positioning block 4. The right end of the positioning block 4 is connected to the left end of the mulch film horizontal pipe.

[0048] A connecting rod 41, which is arc-shaped, runs through the body of the positioning block 4. A slider 42 is slidably fitted onto the right end of the positioning block 4, and a groove is provided on the right end of the positioning block 4, within which the slider 42 is slidably fitted. An interface adapted to the slider 42 is provided on the left end of the mulch film horizontal pipe.

[0049] The connecting rod 41 has an opening cut out from a single ring, as shown in the attached figure. Figure 5 As shown, when not in operation, the opening faces the right end of the positioning block 4. When in operation, align the left end of the mulch film horizontal tube with the positioning block 4, insert one end of the slider 42 into the interface, and push the connecting rod 41 so that the connecting rod 41 can pass through both the mulch film horizontal tube and the slider 42. This achieves the purpose of fixing.

[0050] The positioning block 4 has a vertical sliding cavity 43, and a ball bearing 44 is placed inside the inner wall of the cavity 43. A pressure sensing unit 45 is fixedly installed at one end of the inner wall of the ball bearing 44. A microcontroller and a battery are also fixedly installed inside the positioning block 4; since this is a conventional technical method, it will not be described in detail. The pressure sensing unit 45 is electrically connected to the microcontroller and the battery. Every time the horizontal tube of the mulch film rotates, the ball bearing 44 strikes the pressure sensing unit 45 once, thereby performing a counting function and informing the rice transplanter operator of the amount of mulch film used in real time.

[0051] It also includes a positioning component, which consists of a slide 8, a motor 81, a rotating seat 82, and a screw 83. The top of the slide 8 is fixedly installed together with the motor 81 and the rotating seat 82. The rotating seat 82 is located directly below the motor 81. The drive shaft of the motor 81 is welded to the right end of the crossbeam 1. The right end of the mulch film horizontal tube is pivotally connected to the slide 8. The right end of the mulch film horizontal tube enters the rotating seat 82. The screw 83 is threaded through the mulch film horizontal tube and the rotating seat 82.

[0052] It also includes slide rails 9, which are symmetrically arranged on both sides of the crossbeam 1. Rollers 52 and sliding seats 8 are placed inside the slide rails 9. This allows the rice transplanter to move straight forward, preventing deviation of the transplanter's path during travel. Otherwise, the plastic film may not be able to move straight forward, affecting the effectiveness of the plastic film laying.

[0053] The slide rail 9 has a docking groove 91 at the front and rear ends, and a ring 92 is welded to the side end of the slide rail 9. Multiple slide rails 9 are spliced ​​together through the docking groove 91. The docking grooves 91 of two adjacent slide rails 9 fit together and insert pieces 93.

[0054] It also includes an overlapping strip 7, one end of which is pivotally connected to the right end of the horizontal mulch film tube. The overlapping strip 7 hangs down naturally and contacts the soil surface, so that the mulch film can fit snugly against the soil surface.

[0055] After the mulch film is laid, the edges are affected by wind, causing them to curl up. In severe cases, the film may be blown away or tilted. Therefore, Example 3 is provided to solve this problem, such as... Figure 11-13 As shown:

[0056] It also includes two compaction and covering soil mechanisms 10, which are located on both sides of the mulch film. Each compaction and covering soil mechanism 10 includes a base plate 101, a gear ring 102, a motor-driven pinion 103, an extension 104, and a J-shaped plate 105. The end of the mulch film horizontal tube passes through the base plate 101. A bracket is welded to the bottom of the rice transplanter, and the bracket is threaded together with the base plate 101 by bolts and nuts.

[0057] The gear ring 102 is pivotally connected to the base plate 101, and the gear ring 102 and the base plate 101 are arranged concentrically. A motor is fixedly embedded on the side of the base plate 101, and the motor drive shaft is welded to the pinion 103. The pinion 103 meshes with the gear ring 102, and the front side of the gear ring 102 is connected to the extension 104. The gear ring 102 and the extension 104 are integrally formed.

[0058] The extension 104 extends forward to the edge of the mulch film and is fixedly installed with the J-shaped plate 105.

[0059] The lower end of the J-shaped plate 105 is connected to a bending section 1051, and the J-shaped plate 105 and the bending section 1051 are integrally formed. A perforation hole 1052 is provided at the bottom of the J-shaped plate 105, and the J-shaped plate 105 is aligned with the edge of the mulch film. The J-shaped plate 105 also has multiple longitudinally formed screw holes, which are used to fine-tune the fixed position of the J-shaped plate 105, thereby changing the depth to which the J-shaped plate 105 is pressed into the soil.

[0060] Before operation, the extension section is flush with the ground and horizontal, with the J-shaped plate 105 not in contact with the mulch film. Working principle: The pinion gear 103 is rotated clockwise at regular intervals, causing the gear ring 102 to deflect downwards by 60°. The J-shaped plate 105 descends, pressing the ground edge into the soil. During this pressing process, due to the inclined shape of the bend 1051, the soil at the edge of the mulch film is squeezed and loosened, sliding into the J-shaped plate 105. Immediately afterwards, the pinion gear 103 rotates counterclockwise, causing the J-shaped plate 105 to return to its original position. During the lifting process, soil from the inside of the J-shaped plate 105 falls out through the perforation 1052, thus covering the edge of the mulch film.

[0061] Even if no soil slides into the J-shaped board 105, since the ground edge has been pressed into the soil and formed a groove on the soil surface, it is still possible to cover the edge of the mulch film by manually spreading soil into the groove.

[0062] In summary, this rice transplanting mulch film installation mechanism consists of a crossbeam 1, a sleeve 11, an iron block 12, and a retaining ring 13, installed at the bottom of the transplanter. An annular groove is formed on the inner side of the retaining ring 13. Through the cooperation of a fixing ring 2 and a screw 21, the air ring 23 is connected to the right end of the mulch film crossbeam, embedding the air ring 23 into the groove of the retaining ring 13, thus achieving a fixing effect. The overall structure is simple, making installation and disassembly more convenient, further reducing maintenance costs. It replaces traditional manual laying operations, improving work efficiency and reducing the labor intensity of farmers.

[0063] Furthermore, a stone removal mechanism is installed, comprising a rotating rod 6, plow blades 61, and steel wires 62. The two outermost plow blades 61 are connected to tension sensing units. The plow blades 6 and steel wires 62 form a barrier net. The presence of stone particles on the soil surface is determined by whether the tension sensing units are under tension. Then, through the cooperation of connecting block 3 and roller 32, the rotating rod 6 is driven to rotate, causing the barrier net to tilt upwards, thus throwing the stone particles forward and keeping them away from the mulch film. This prevents the mulch film from being torn by the stone particles, thereby achieving a protective function.

[0064] Furthermore, a compaction and soil covering mechanism 10 is also established, which consists of a base plate 101, a gear ring 102, a motor-driven pinion 103, an extension 104, and a J-shaped plate 105. The J-shaped plate 105 is used to press the edge of the mulch film into the soil. During this process, the soil at the edge of the mulch film is easily loosened and collapses into the J-shaped plate 105 under stress. Then, the J-shaped plate 105 is lifted, and the collapsed soil falls out through the perforation 1052, thus achieving the purpose of burying and covering the edge of the mulch film with soil. This prevents the mulch film from being blown askew or lifted by the wind after installation and ensures the compaction rate of the mulch film edge.

[0065] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A film mulch installation mechanism for rice transplanting, wherein a horizontal film mulch tube is installed below a rice transplanter, and the film mulch is wound around the horizontal film mulch tube, characterized in that: Includes a crossbeam (1), with a connecting piece 1 connected to the top left end of the crossbeam (1), a positioning mechanism connected to the right end of the crossbeam (1), and a connecting piece 2 symmetrically connected to the top of the crossbeam (1). The connecting piece 2 is used to connect to the bottom of the rice transplanter. The length of the crossbeam (1) is greater than the width of the rice transplanter. The second connecting part is a connecting block (3), which also includes a stone cleaning mechanism. The stone cleaning mechanism includes a rotating rod (6), multiple plow blades (61), and multiple steel wires (62). The rotating rod (6) is arranged above the crossbeam (1). The plow blades (61) are arranged at equal distances along the length of the rotating rod (6). The multiple steel wires (62) are arranged at equal distances. The ends of the steel wires (62) pass through the plow blades (61). The connecting block (3) has a through groove (31). A motor-driven roller (32) is pivotally connected to the bottom of the inner wall of the through groove (31). The rotating rod (6) passes through the through groove (31) and contacts the roller (32). The two outermost plow blades (61) are equipped with tension sensing units on their sides, and the ends of the steel wires (62) are connected to the tension sensing units. The connecting component consists of a base (5), a middle gear (51), a roller (52), and a positioning block (4). The side of the base (5) is pivotally connected to the rotating rod (6). The middle gear (51) is pivotally connected below the base (5). The end of the crossbeam rod (1) is connected to the shaft end of the middle gear (51). The surface of the roller (52) is provided with tooth grooves. The tooth grooves of the middle gear (51) and the roller (52) mesh. A belt (53) is connected between the middle gear (51) and the roller (52). The center of the roller (52) is connected to the positioning block (4). The right end of the positioning block (4) is connected to the left end of the mulch film horizontal pipe. It also includes two compaction and covering soil mechanisms (10), which are located on both sides of the mulch film. The compaction and covering soil mechanism (10) includes a base plate (101), a toothed ring (102), a motor-driven pinion (103), an extension (104), and a J-shaped plate (105). The end of the mulch film horizontal tube passes through the base plate (101). The toothed ring (102) is pivotally connected to the base plate (101), and the toothed ring (102) and the base plate (101) are arranged in concentric circles. The side of the base plate (101) is connected to the pinion (103), and the pinion (103) meshes with the toothed ring (102). The front side of the toothed ring (102) is connected to the extension (104), and the extension (104) extends forward to the edge of the mulch film and is connected to the J-shaped plate (105).

2. The mulch film installation mechanism for rice transplanting according to claim 1, characterized in that: The positioning block (4) has a connecting rod (41) running through its body. The connecting rod (41) is arc-shaped. The right end of the positioning block (4) is slidably fitted with a slider (42). The left end of the mulch film horizontal tube has an interface that matches the slider (42). After one end of the slider (42) is inserted into the interface, it pushes the connecting rod (41) so that the connecting rod (41) can pass through the mulch film horizontal tube and the slider (42).

3. The mulch film installation mechanism for rice transplanting according to claim 2, characterized in that: The positioning block (4) has a vertical sliding cavity (43) inside, and a ball (44) is provided in the inner wall of the sliding cavity (43). One end of the inner wall of the ball (44) is connected to a pressure sensing unit (45).

4. The mulch film installation mechanism for rice transplanting according to claim 3, characterized in that: The positioning mechanism consists of a slide (8), a motor (81), a rotating seat (82), and a screw (83). The top of the slide (8) is connected to the motor (81) and the rotating seat (82). The rotating seat (82) is located directly below the motor (81). The drive shaft of the motor (81) is connected to the right end of the crossbeam (1). The right end of the mulch film tube is pivotally connected to the slide (8). The right end of the mulch film tube enters the rotating seat (82). The screw (83) is threaded through the mulch film tube and the rotating seat (82).

5. The mulch film installation mechanism for rice transplanting according to claim 4, characterized in that: It also includes a slide rail (9), which is symmetrically arranged on both sides of the crossbeam (1). The roller (52) and the slide block (8) are placed in the slide rail (9). The front and rear ends of the slide rail (9) are provided with docking grooves (91). The side ends of the slide rail (9) are connected with ring buckles (92). Multiple slide rails (9) are spliced ​​together through the docking grooves (91). The docking grooves (91) of two adjacent slide rails (9) fit together and insert pieces (93).

6. The mulch film installation mechanism for rice transplanting according to claim 5, characterized in that: It also includes an overlapping strip (7), one end of which is fixedly connected to the right end of the mulch film horizontal pipe.

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