A film roll auxiliary pushing structure for mulching film laying

Abstract

The utility model discloses a film roll auxiliary pushing structure is laid with mulching film belongs to agricultural machinery technical field, and its technical scheme main points include the unwinding frame, the inside rotation of unwinding frame is connected with unwinding reel, the front side swing joint of unwinding frame has the elastic support mechanism, the top swing joint of elastic support mechanism has the reciprocating drive component, the top swing joint of reciprocating drive component has the rotary frame, the inside rotation of rotary frame is connected with the rectification roller, can be with the screw rod motor adjustment linkage bottom plate height of elevating underframe, and then adjust rectification roller and the contact stress of mulching film, can adapt to different thickness mulching film, and the elastic buffer structure that sets up radial telescopic column with pressure spring and oblique inverted eight character telescopic guide rod with pressure spring group between linkage bottom plate and spacing bottom plate, can offset the additional pressure of rectification roller of mulching film when traction rate mutation, avoid the rupture of mulching film and the work interruption caused by rigid contact, realize stable, and the mulching film laying operation of strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a film roll auxiliary propulsion structure for laying mulch film. Background Technology

[0002] Mulch film is widely used in agriculture for its water and fertilizer retention functions. However, traditional laying methods rely on manual handling and pushing of the film rolls. This is not only cumbersome and labor-intensive due to the large weight of the film rolls, their susceptibility to static electricity, or wind damage, but also often results in uneven laying and wrinkles. Therefore, there is an urgent need for auxiliary pushing and structural optimization operations.

[0003] In existing technologies, the current mulch film laying operation involves mulch film laying equipment supporting the unwinding reel with an unwinding frame, cooperating with a rigid traction structure to complete the unwinding, and a one-way contact correction roller is set at the unwinding reel outlet between the unwinding reel and the transmission equipment to assist in mulch film laying. However, this process has obvious defects. First, during high-speed laying, the tension of the mulch film is prone to sudden changes due to fluctuations in the traction rate. The rigid structure cannot buffer the stress, and the stress on the correction roller is too high, leading to mulch film breakage and work interruption. Second, during the process of the correction roller assisting in the traction of the mulch film, its correction mode is singular, its position is fixed, and the correction effect is poor.

[0004] To address this, a membrane roll-assisted propulsion structure for laying mulch film is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a membrane roll auxiliary pushing structure for laying mulch film, which can solve the problems of mulch film breakage caused by sudden tension changes and insufficient correction effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a film roll auxiliary pushing structure for laying mulch film, including a roll unwinding frame, a roll unwinding reel rotatably connected to the inner side of the roll unwinding frame, an elastic support mechanism movably connected to the front side of the roll unwinding frame, a reciprocating drive assembly movably connected to the top of the elastic support mechanism, a rotating frame movably connected to the top of the reciprocating drive assembly, a correction roller rotatably connected to the inner side of the rotating frame, the elastic support mechanism including a lifting base frame, the lifting base frame being fixedly connected to the front side of the roll unwinding frame, a linkage base plate slidably connected to the inner side of the top of the lifting base frame, two threaded sleeves being fixedly connected to the inner side of the bottom of the linkage base plate, the two threaded sleeves being symmetrically arranged left and right, a lead screw motor being threadedly connected to the inner side of the threaded sleeve, the two lead screw motors being movably connected to both sides of the lifting base frame respectively, and an elastic component movably connected to the top of the linkage base plate.

[0007] Preferably, the reciprocating drive assembly includes a limiting base plate, which is movably connected to the top of the elastic assembly, and the rotating frame is slidably connected to the top of the limiting base plate.

[0008] Preferably, toothed plates are fixedly connected to both the front and rear sides of the rotating frame, and the two toothed plates are slidably connected to the front and rear sides of the outer side of the limiting base plate, respectively.

[0009] Preferably, a servo motor is fixedly connected to both the front and rear sides of the bottom of the limiting base plate, and a drive gear is fixedly connected to the output end of the servo motor. The two drive gears are respectively meshed and connected to opposite sides of the two tooth plates.

[0010] Preferably, the elastic component includes four telescopic columns, all of which are fixedly connected to the top of the linkage base plate and are respectively located at the four corners of the linkage base plate. Two sets of telescopic guide rods are rotatably connected to the top of the linkage base plate. The two sets of telescopic guide rods are located on opposite sides of the four telescopic columns and are arranged in an inverted V-shape. The other ends of the four telescopic columns are fixedly connected to the four corners of the bottom of the limiting base plate, and the other ends of the two sets of telescopic guide rods are rotatably connected to the bottom of the limiting base plate.

[0011] Preferably, compression springs are fitted onto the outer sides of both the telescopic column and the telescopic guide rod.

[0012] Preferably, an extension rod is fixedly connected to both sides of the toothed plate.

[0013] Preferably, an infrared ranging sensor is fixedly connected to one side of each of the two extension rods.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This application addresses the shortcomings of existing mulch film laying equipment and brings beneficial effects by setting up an elastic support mechanism. On the one hand, the height of the linkage base plate is adjusted by the screw motor of the lifting base frame, thereby adjusting the contact stress between the correction roller and the mulch film, which can adapt to mulch film of different thicknesses. At the same time, an elastic buffer structure composed of radial telescopic columns with compression springs and oblique inverted V-shaped telescopic guide rods with compression springs is set between the linkage base plate and the limiting base plate. This can offset the additional pressure of the mulch film on the correction roller when the traction rate changes suddenly, avoiding mulch film breakage and work interruption caused by rigid contact. On the other hand, the height of the correction roller can be adjusted by the linkage base plate, breaking the fixed position limitation, optimizing the correction mode, improving the correction effect, and ultimately achieving a more stable and adaptable mulch film laying operation.

[0016] 2. This application, by setting a reciprocating drive component, allows the rotating frame supporting the correction roller to slide on the top of the limiting base plate. The servo motor drives the toothed plate to move the rotating frame left and right, and the infrared ranging sensor avoids collisions. This further enriches the correction modes, which not only solves the problem of the correction roller having a single correction mode due to limited position adjustment, but also enhances the adaptability to different offset situations through active adjustment in the left and right directions, improving the correction accuracy. At the same time, the protective function of the sensor ensures the stability of the adjustment process, making the correction effect more reliable. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the membrane roll auxiliary pushing structure for laying mulch film according to this utility model;

[0018] Figure 2 This is an overall structural diagram of the lifting base frame of this utility model;

[0019] Figure 3 This is an overall structural diagram of the elastic support mechanism of this utility model;

[0020] Figure 4 This is an overall structural diagram of the elastic component of this utility model;

[0021] Figure 5 This is an overall structural diagram of the reciprocating drive assembly of this utility model.

[0022] In the diagram, 1. Unwinding frame; 2. Unwinding reel; 3. Elastic support mechanism; 31. Lifting base frame; 32. Linkage base plate; 33. Threaded sleeve; 34. Lead screw motor; 35. Elastic component; 3501. Telescopic column; 3502. Telescopic guide rod; 3503. Compression spring; 4. Reciprocating drive assembly; 41. Limiting base plate; 42. Toothed plate; 43. Servo motor; 44. Drive gear; 5. Rotating frame; 6. Correcting roller; 7. Extension rod; 8. Infrared ranging sensor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 The present invention provides the following technical solution:

[0025] A film roll auxiliary propulsion structure for laying mulch film includes an unwinding frame 1, an unwinding reel 2 rotatably connected to the inner side of the unwinding frame 1, an elastic support mechanism 3 movably connected to the front side of the unwinding frame 1, a reciprocating drive assembly 4 movably connected to the top of the elastic support mechanism 3, a rotating frame 5 movably connected to the top of the reciprocating drive assembly 4, and a correction roller 6 rotatably connected to the inner side of the rotating frame 5. The elastic support mechanism 3 includes a lifting base 31, which is fixedly connected to the front side of the unwinding frame 1. A linkage base plate 32 is slidably connected to the inner side of the top of the lifting base 31. Two threaded sleeves 33 are fixedly connected to the inner side of the bottom of the linkage base plate 32, and the two threaded sleeves 33 are symmetrically arranged on the left and right. A lead screw motor 34 is threadedly connected to the inner side of the threaded sleeve 33. The two lead screw motors 34 are movably connected to both sides of the lifting base 31, and an elastic component 35 is movably connected to the top of the linkage base plate 32.

[0026] In this embodiment: instead of using a fixed structure to support the straightening roller 6 so that it rigidly contacts the unwound mulch film, a lifting base frame 31 with internal sliding rails is provided. Inside the lifting base frame 31 is a lifting and sliding linkage base plate 32. Threaded sleeves 33 are fixed in the sliding areas on both sides of the bottom of the linkage base plate 32. The height of the linkage base plate 32 can be adjusted by two lead screw motors 34 synchronously driven in the guide rails on both sides of the lifting base frame 31, thereby adjusting the height of the straightening roller 6 associated with the linkage base plate 32, which is one of the main carriers, so as to adjust the straightening roller 6 to contact the unwound film from the bottom. The contact stress of the mulch film is adapted to different thicknesses of mulch film, and there is an elastic buffer structure between the linkage base plate 32 and the limiting base plate 41, which is also the main support carrier of the correction roller 6. When the traction unwinding speed suddenly increases, causing the cloth roll to increase the pressure on the correction roller 6, the correction roller 6 does not bear it rigidly but shifts downward to act on the limiting base plate 41, reducing the vertical distance between the two. The radial buffer of the elastic component 35, combined with the oblique buffer, offsets the sudden increase in stress, which not only avoids damage to the mulch film due to sudden speed change, but also quickly resets the correction roller 6 to assist in traction.

[0027] Specifically, such as Figure 1 , Figure 2 , Figure 5 As shown, the reciprocating drive assembly 4 includes a limiting base plate 41, which is movably connected to the top of the elastic assembly 35, and the rotating frame 5 is slidably connected to the top of the limiting base plate 41.

[0028] Specifically, such as Figure 1 , Figure 2 , Figure 5 As shown, toothed plates 42 are fixedly connected to the front and rear sides of the rotating frame 5, and the two toothed plates 42 are slidably connected to the front and rear sides of the outer side of the limiting base plate 41, respectively.

[0029] Specifically, such as Figure 1 , Figure 2 , Figure 5As shown, servo motors 43 are fixedly connected to the front and rear sides of the bottom of the limiting base plate 41. The output end of the servo motor 43 is fixedly connected to a drive gear 44. The two drive gears 44 are respectively meshed and connected to opposite sides of the two tooth plates 42.

[0030] In this embodiment: by adding a correction mode to the correction roller 6, the rotating frame 5 supporting the correction roller 6 is slidably connected to the top of the limiting base plate 41. The rotating frame 5 is provided with toothed plates 42 on both the front and rear sides of the top. The toothed plates 42 are driven by the servo motor 43 at the bottom of the limiting base plate 41 through two sets of drive gears 44 in the same direction to realize the left and right movement of the rotating frame 5. The toothed plates 42 are provided with extension rods 7 and infrared ranging sensors 8 on both sides. When the infrared ranging sensor 8 is too close to the servo motor 43, the servo motor 43 will immediately reverse the drive to avoid collision and realize left and right drive, thereby improving the correction effect.

[0031] Specifically, such as Figure 3 , Figure 4 As shown, the elastic component 35 includes four telescopic columns 3501, all of which are fixedly connected to the top of the linkage base plate 32. The four telescopic columns 3501 are respectively set at the four corners of the linkage base plate 32. Two sets of telescopic guide rods 3502 are rotatably connected to the top of the linkage base plate 32. The two sets of telescopic guide rods 3502 are set on the opposite side of the four telescopic columns 3501 and are arranged in an inverted V-shape. The other ends of the four telescopic columns 3501 are fixedly connected to the four corners of the bottom of the limiting base plate 41, and the other ends of the two sets of telescopic guide rods 3502 are rotatably connected to the bottom of the limiting base plate 41.

[0032] Specifically, such as Figure 3 , Figure 4 As shown, compression springs 3503 are sleeved on the outer sides of both the telescopic column 3501 and the telescopic guide rod 3502.

[0033] In this embodiment: there are vertical telescopic columns 3501 between the four corners of the limiting base plate 41 and the linkage base plate 32. The telescopic columns 3501 are fitted with compression springs 3503 on their outer sides. When the limiting base plate 41 is pressed down, the telescopic columns 3501 extend and retract, and the compression springs 3503 are compressed to accumulate radial elastic potential energy. There are also two sets of inverted V-shaped telescopic guide rods 3502 in the center of the two, with their two ends rotatably connected to the opposite side of the two. When pressed down, the two ends of the telescopic guide rods 3502 rotate and extend, the top opening of the inverted V-shape expands, and the outer compression springs 3503 are sheared and pressed down to accumulate elastic potential energy to form an oblique buffer. In this way, the radial and oblique buffers offset the sudden increase in stress, which not only avoids damage to the mulch film due to sudden changes in rate, but also allows for quick reset of the correction roller 6 to assist in traction.

[0034] Specifically, such as Figure 5 As shown, extension rods 7 are fixedly connected to both sides of the toothed plate 42.

[0035] Specifically, such as Figure 5 As shown, infrared ranging sensors 8 are fixedly connected to the opposite sides of the two extension rods 7.

[0036] In this embodiment, there are extension rods 7 and infrared ranging sensors 8 on both sides of the toothed plate 42. When the infrared ranging sensor 8 and the servo motor 43 are too close, the servo motor 43 will immediately reverse its direction to avoid collision and can also drive left and right.

[0037] Working principle: In the existing mulch film laying operation, the mulch film laying equipment supports the unwinding reel 2 through the unwinding frame 1 and completes the unwinding in conjunction with the rigid traction structure. A one-way contact correction roller 6 is set at the exit of the unwinding reel 2 and between it and the transmission equipment to assist in the laying of the mulch film. However, this process has obvious defects. First, when laying at high speed, the tension of the mulch film is prone to sudden changes due to fluctuations in the traction rate. The rigid structure cannot buffer the stress, and the stress on the correction roller 6 is too large, which can lead to the mulch film breaking and the interruption of the operation.Secondly, the straightening roller 6 has a single straightening mode and fixed position during the auxiliary traction of the mulch film, resulting in poor straightening effect. To avoid this, instead of using a fixed structure to support the straightening roller 6 and make it rigidly contact the unwound mulch film, a lifting base frame 31 with internal sliding rails is installed. Inside the lifting base frame 31, a linkage base plate 32 slides up and down. Threaded sleeves 33 are fixedly connected to the sliding areas on both sides of the bottom of the linkage base plate 32. The height of the linkage base plate 32 can be adjusted by two lead screw motors 34 synchronously driven inside the guide rails on both sides of the lifting base frame 31. As one of the main carriers of the straightening roller 6, the height adjustment of the linkage base plate 32 affects the height of the straightening roller 6. Therefore, by adjusting the height, the straightening roller 6 can be adjusted from the bottom... The contact stress of the unwinding mulch film is adjusted to accommodate mulch film of different thicknesses. An elastic buffer structure is also provided between the linkage base plate 32 and the limiting base plate 41. Since the limiting base plate 41 is also a main support carrier for the correction roller 6, when the traction unwinding speed suddenly increases, causing the mulch roll to exert greater pressure on the correction roller 6, the correction roller 6 no longer rigidly accepts the pressure but instead shifts downwards and acts on the limiting base plate 41, reducing the vertical distance between the limiting base plate 41 and the linkage base plate 32. This produces the following buffering effect: First, vertically distributed telescopic columns 3501 are provided between the four corners of the limiting base plate 41 and the four corners of the linkage base plate 32, and compression springs 3503 are sleeved on the outer side of the telescopic columns 3501. When the limiting base plate 41 presses down and settles... The telescopic column 3501 extends and contracts, pressing its outer compression spring 3503 to accumulate radial elastic potential energy. At the center between the limiting base plate 41 and the linkage base plate 32, two sets of telescopic guide rods 3502 are arranged in an inverted V-shape, with their ends rotatably connected to the opposite sides of the linkage base plate 32 and the limiting base plate 41. During the downward settlement process, the ends of the telescopic guide rods 3502 rotate and extend, the opening at the top of the inverted V-shape widens, and the outer compression spring 3503 of the telescopic guide rods 3502 shears and accumulates elastic potential energy, forming an oblique elastic buffer. This radial buffering combined with oblique buffering achieves the effect of offsetting the sudden increase in stress, preventing damage to the mulch film caused by sudden rate changes, and allowing for rapid resetting of the correction roller 6. Currently, auxiliary traction is provided. Secondly, to further enhance the correction mode of the correction roller 6, the rotating frame 5 supporting the correction roller 6 is slidably connected to the top of the limiting base plate 41. Toothed plates 42 are provided on both the front and rear sides of the top of the rotating frame 5. These toothed plates 42 are driven by a servo motor 43 at the bottom of the limiting base plate 41, which, through two sets of drive gears 44, performs displacement in the same direction, achieving the left-right movement of the rotating frame 5. Extension rods 7 and infrared ranging sensors 8 are provided on both sides of the toothed plates 42. When the infrared ranging sensor 8 is too close to the servo motor 43, it immediately responds to the servo motor 43, causing it to drive in the opposite direction to avoid collision and achieve the left-right driving effect, thereby promoting the correction effect. In summary, this optimizes the auxiliary pushing structure for the film roll used in mulch film laying.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A film roll auxiliary pushing structure for laying mulch film, comprising an unwinding frame (1), characterized in that: The unwinding frame (1) is rotatably connected to the inner side of the unwinding reel (2), and the front side of the unwinding frame (1) is movably connected to the elastic support mechanism (3). The top of the elastic support mechanism (3) is movably connected to the reciprocating drive assembly (4), and the top of the reciprocating drive assembly (4) is movably connected to the rotating frame (5). The inner side of the rotating frame (5) is rotatably connected to the correction roller (6). The elastic support mechanism (3) includes a lifting base frame (31), which is fixedly connected to the unwinding reel. On the front side of the frame (1), a linkage base plate (32) is slidably connected to the inner side of the top of the lifting base (31). Two threaded sleeves (33) are fixedly connected to the inner side of the bottom of the linkage base plate (32), and the two threaded sleeves (33) are symmetrically arranged on the left and right. A lead screw motor (34) is threadedly connected to the inner side of the threaded sleeve (33). The two lead screw motors (34) are movably connected to both sides of the lifting base (31). An elastic component (35) is movably connected to the top of the linkage base plate (32).

2. The film roll auxiliary pushing structure for laying mulch film according to claim 1, characterized in that: The reciprocating drive assembly (4) includes a limiting base plate (41), which is movably connected to the top of the elastic assembly (35), and the rotating frame (5) is slidably connected to the top of the limiting base plate (41).

3. The film roll auxiliary pushing structure for laying mulch film according to claim 2, characterized in that: The front and rear sides of the rotating frame (5) are fixedly connected with toothed plates (42), and the two toothed plates (42) are slidably connected to the front and rear sides of the outer side of the limiting base plate (41).

4. The membrane roll auxiliary pushing structure for laying mulch film according to claim 3, characterized in that: Servo motors (43) are fixedly connected to the front and rear sides of the bottom of the limiting base plate (41). The output end of the servo motor (43) is fixedly connected to a drive gear (44). The two drive gears (44) are respectively meshed on opposite sides of the two tooth plates (42).

5. The film roll auxiliary pushing structure for laying mulch film according to claim 1, characterized in that: The elastic component (35) includes four telescopic columns (3501), all of which are fixedly connected to the top of the linkage base plate (32) and are respectively located at the four corners of the linkage base plate (32). The top of the linkage base plate (32) is rotatably connected to two sets of telescopic guide rods (3502), which are respectively located on the opposite side of the four telescopic columns (3501) and are arranged in an inverted V-shape. The other ends of the four telescopic columns (3501) are respectively fixedly connected to the four corners of the bottom of the limiting base plate (41), and the other ends of the two sets of telescopic guide rods (3502) are respectively rotatably connected to the bottom of the limiting base plate (41).

6. The film roll auxiliary pushing structure for laying mulch film according to claim 5, characterized in that: Compression springs (3503) are sleeved on the outer sides of both the telescopic column (3501) and the telescopic guide rod (3502).

7. The membrane roll auxiliary pushing structure for laying mulch film according to claim 3, characterized in that: Both sides of the toothed plate (42) are fixedly connected to extension rods (7).

8. The film roll auxiliary pushing structure for laying mulch film according to claim 7, characterized in that: Infrared ranging sensors (8) are fixedly connected to the opposite sides of the two extension rods (7).

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