An agricultural mulching machine device for agricultural mechanization

By using a double-layer support and a reverse-threaded double screw design, the positions of the first and second cylinders are adjusted and fixed simultaneously, solving the problem of mulch film shifting on uneven ground and improving the practicality and installation efficiency of mulch film laying.

CN224306475UActive Publication Date: 2026-06-02黄云

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
黄云
Filing Date
2025-06-09
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

When laying mulch film on uneven ground, the first and second cylinders of existing agricultural mulch film laying machines are prone to rotation and displacement, causing the mulch film to deviate from its laying position. Furthermore, the sliding plate is inconvenient to adjust, affecting the practicality of mulch film laying.

Method used

The design employs a double-layer support and a twin-screw design with reverse threads. By rotating the twin screws, the positions of the first and second cylinders are adjusted synchronously, and they are fixed with bolts and insertion holes to ensure that the centers of both are aligned with the ground membrane laying position. At the same time, insertion rods and slots are used for fixation to prevent rotation.

Benefits of technology

This method achieves synchronous alignment and fixation of the first and second cylinders, preventing mulch film misalignment and improving the practicality and installation efficiency of mulch film laying.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to agricultural mulching machine technical field, concretely for a kind of agricultural mulching machine device for agricultural mechanization, it has the characteristics of improving practicability, including double-layer support and telescopic link, the middle part of double-layer support is rotationally connected with the double screw rod of the external thread reverse thread setting, mobile block of reverse movement is threadedly connected on double screw rod, the lower part of mobile block and the upper part of telescopic link are fixedly arranged together, rotate double screw rod, drive two telescopic links to be close to each other or away from each other, the lower part of several telescopic links is fixedly provided with support plate, the support plate of displacement left part is rotationally connected with first cylinder body by pivot, the support plate of displacement right part is rotationally connected with second cylinder body by pivot, several support plates are all equipped with threaded hole, and all are threadedly connected with bolt, the side wall of first cylinder body is equipped with jack, the side wall of second cylinder body is equipped with another jack, and the free end of jack and bolt is inserted and connected.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural mulching machine technology, specifically an agricultural mulching machine device for agricultural mechanization. Background Technology

[0002] As is well known, mulch film, or ground cover film, is usually transparent or black PE film, but also comes in green and silver. It is used for ground cover to increase soil temperature, retain soil moisture, maintain soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, and promote plant growth.

[0003] Chinese Utility Model Publication No. CN212138638U discloses an agricultural mulching machine device for agricultural mechanization, including a frame body, a first cylinder and a second cylinder. The frame body is fixed on the mulching machine. Two sets of sliding plates are slidably connected to the bottom of the frame body. The top of the sliding plates is provided with a fixing mechanism corresponding to the frame body. A sleeve is fixedly connected to the bottom of the sliding plates. A telescopic rod is provided at the bottom of the sleeve. A sleeve is fixedly connected to the bottom of the telescopic rod. A shaft is fixedly connected to the side walls of both the first cylinder and the second cylinder. Both sets of sleeves are sleeved on the two sets of shafts. The first cylinder and the second cylinder are interlocked.

[0004] This device addresses the issue of the first and second cylinders adhering to the ground cover when the ground is uneven. However, since both cylinders rotate, when the worker attaches the mulch film to the first cylinder, the first cylinder tends to rotate, causing the insertion tube to rotate and shift at an angle. Consequently, when inserting the insertion tube into the slot of the second cylinder, the retaining strip fails to engage, making installation inconvenient. Furthermore, the sliding plates are manually adjusted one by one. When adjusting one plate, it's impossible to ensure the distance between the two plates and the center of the frame is aligned, easily resulting in the centers of the two plates being positioned to the left or right of the frame's center. This shift in the center position of the sliding plates causes the mulch film to shift off-center from the intended location on the ground, hindering effective installation. Therefore, its practicality is not very good. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an agricultural mulching film making machine for agricultural mechanization, which features improved practicality.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an agricultural mulching film machine device for agricultural mechanization, comprising a double-layer support and telescopic rods. A double screw with reverse-threaded external threads is rotatably connected to the middle of the double-layer support. A moving block with reverse movement is threaded onto the double screw. The lower part of the moving block and the upper part of the telescopic rod are fixed together. Rotating the double screw causes the two telescopic rods to move closer or further apart. Support plates are fixedly provided at the lower parts of several telescopic rods. A first cylinder is rotatably connected to the support plate on the left side via a rotating shaft, and a second cylinder is rotatably connected to the support plate on the right side via a rotating shaft. Each support plate has threaded holes, and bolts are threaded onto each. An insertion hole is provided on the side wall of the first cylinder, and another insertion hole is provided on the side wall of the second cylinder. The insertion holes and the free ends of the bolts are interlocked to fix the first and second cylinders in place, preventing further rotation.

[0009] Furthermore, the double-layer support is provided with a through groove running vertically through the top and bottom, and the upper and lower ends of the movable block slide left and right within the through groove.

[0010] Furthermore, a rotating plate is fixedly provided at the end of the twin screw, and a gap is provided between the rotating plate and the double-layer bracket. A handle is installed at one end of the rotating plate.

[0011] Furthermore, the first cylinder has a sliding groove inside, and a sliding tube is slidably connected inside the sliding groove, and an insert rod is slidably connected inside the sliding tube.

[0012] Furthermore, a spring is fixedly provided at one end of the insertion rod inside the slide tube, and the other end of the spring is fixedly mounted on the first cylinder.

[0013] Furthermore, the cross-section of the insertion rod is rectangular.

[0014] Preferably, the second cylinder has a slot in the middle, and the slot and the plug are connected in an insert configuration.

[0015] Preferably, both the first cylinder and the second cylinder are provided with limit plates.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides an agricultural mulching film machine device for agricultural mechanization, which has the following beneficial effects:

[0018] This agricultural mulching machine, used for agricultural mechanization, allows for the synchronous adjustment of the first and second cylinders by rotating a twin-screw, ensuring their centers remain aligned with the center of the double-layer support frame. This aligns the machine with the required mulch film position on the ground, preventing misalignment. Furthermore, bolts are screwed into the threaded holes of the support plate and inserted into the insertion holes of the first and second cylinders, thus securing them in place. This prevents rotation during mulch film installation, facilitating the insertion of the insertion rod into the slot of the second cylinder and enhancing its practicality. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0020] Figure 2 This is a structural schematic diagram of the telescopic rod, the first cylinder, and the second cylinder of this utility model;

[0021] Figure 3 This is an enlarged three-dimensional schematic diagram of the second cylinder and the limiting plate of this utility model;

[0022] Figure 4 This utility model Figure 2 The diagram shows a partially enlarged structural schematic at point A.

[0023] In the diagram: 1. Double-layer bracket; 2. Telescopic rod; 3. Double screw; 4. Moving block; 5. Support plate; 6. First cylinder; 7. Second cylinder; 8. Threaded hole; 9. Bolt; 10. Insertion hole; 11. Through groove; 12. Sliding tube; 13. Insert rod; 14. Spring; 15. Slot; 16. Limiting plate. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-2This utility model discloses an agricultural mulching machine device for agricultural mechanization, comprising a double-layer support 1 and a telescopic rod 2. A double-screw 3 with reverse-threaded external threads is rotatably connected to the middle of the double-layer support 1. A circular hole with a diameter equal to that of the double-screw 3 is opened at the center of the double-layer support 1. The double-screw 3 rotates within the circular hole, or it can be rotatably connected to the double-layer support 1 via bearings or other devices. A moving block 4 with reverse-moving action is threaded onto the double-screw 3. The lower part of the moving block 4 is fixedly attached to the upper part of the telescopic rod 2. When the operator rotates the double-screw 3, it causes the two moving blocks 4 to move closer or further apart. Simultaneously, the moving block 4 drives the two telescopic rods 2 to move closer or further apart, thereby making the center positions of the two telescopic rods 2 and the double screw 3 equidistant. Support plates 5 are fixedly installed at the lower part of several telescopic rods 2. The support plate 5 on the left side of the displacement is rotatably connected to the first cylinder 6 through a rotating shaft, and the support plate 5 on the right side of the displacement is rotatably connected to the second cylinder 7 through a rotating shaft. The workers put the mulch film on the first cylinder 6 and the second cylinder 7. Limiting plates 16 are set on both the first cylinder 6 and the second cylinder 7. The two sides of the mulch film are supported on the limiting plates 16, thereby preventing the mulch film from sliding off the first cylinder 6 and the second cylinder 7.

[0026] Several support plates 5 are provided with threaded holes 8, and each is threaded with a bolt 9. The side wall of the first cylinder 6 is provided with an insertion hole 10, and the side wall of the second cylinder 7 is provided with another insertion hole 10. The insertion hole 10 and the free end of the bolt 9 are connected in an interlocking manner. The worker screws the bolt 9 into the threaded hole 8 of the support plate 5, and the free end of the bolt 9 protrudes from the threaded hole 8 and is then inserted into the insertion hole 10 of the first cylinder 6 and the second cylinder 7, thereby fixing the first cylinder 6 and the second cylinder 7 so that they no longer rotate. This ensures that the first cylinder 6 and the second cylinder 7 will not rotate or deviate from the angle when installing the mulch film.

[0027] The double-layer bracket 1 is provided with a through groove 11 that runs vertically through the top and bottom. The upper and lower ends of the moving block 4 slide left and right in the through groove 11. The movement of the moving block 4 in the through groove 11 can play a certain limiting role and prevent the moving block 4 from rotating.

[0028] A rotating plate is fixedly installed at the end of the twin screw 3. There is a gap between the rotating plate and the double-layer bracket 1. A handle is installed at one end of the rotating plate. When the operator grabs the handle and rotates it, the rotating plate rotates, thereby driving the twin screw 3 to rotate.

[0029] The first cylinder 6 has a sliding groove inside, and a sliding tube 12 is slidably connected inside the sliding groove. An insert rod 13 is slidably connected inside the sliding tube 12. A spring 14 is fixedly installed at one end of the insert rod 13 inside the sliding tube 12, and the other end of the spring 14 is fixedly installed on the first cylinder 6. The spring 14 provides a pushing force to the insert rod 13, causing the insert rod 13 to slide inside the sliding tube 12, and then causing the sliding tube 12 to slide inside the sliding groove of the first cylinder 6.

[0030] The cross-section of the insertion rod 13 is rectangular. The middle part of the second cylinder 7 is provided with a slot 15, and the slot 15 and the insertion rod 13 are connected. The rectangular insertion rod 13 is inserted into the slot 15 of the second cylinder 7, which can fix the first cylinder 6 and the second cylinder 7 together and make them rotate synchronously.

[0031] In summary, this agricultural mulching machine for agricultural mechanization operates as follows: When in use, the operator grasps the handle and rotates it in the opposite direction, causing the twin screw 3 to rotate in the opposite direction. This causes the telescopic rod 2, the first cylinder 6, and the second cylinder 7 to move in the opposite direction. When the distance between the first cylinder 6 and the second cylinder 7 increases, the operator rotates the bolt 9 so that its free end is inserted into the insertion hole 10 of the first cylinder 6 and the second cylinder 7. The operator then pushes the insertion rod 13 into the sliding tube 12, compressing the spring 14. The sliding tube 12 is then pushed into the first cylinder 6. The mulch film is then placed on the first cylinder 6. The operator releases the insertion rod 13, allowing the spring 14 to extend and slide within the sliding tube 12. The sliding tube 12 then slides within the first cylinder 6 in an extended state. The operator then rotates the handle in the forward direction, causing the twin screw 3 to rotate forward. This causes the first cylinder 6 and the second cylinder 7 to move closer together until the insertion rod 13 is inserted into the slot 15 of the second cylinder 7, and the limiting plates 16 of the first cylinder 6 and the second cylinder 7 are in contact with the ground on both sides. At this point, the rotation of the twin screw 3 stops.

[0032] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An agricultural mulching film making machine for agricultural mechanization, comprising a double-layer support (1) and a telescopic rod (2), characterized in that: The middle of the double-layer bracket (1) is rotatably connected to a double screw (3) with reverse external threads. A moving block (4) with reverse movement is threaded onto the double screw (3). The lower part of the moving block (4) and the upper part of the telescopic rod (2) are fixed together. Rotating the double screw (3) causes the two telescopic rods (2) to move closer or further apart. The lower part of several telescopic rods (2) is fixedly provided with a support plate (5). The support plate (5) on the left side is rotatably connected to the first... A first cylinder (6) is connected to a second cylinder (7) via a rotating shaft. Several support plates (5) are provided with threaded holes (8) and are threaded with bolts (9). The side wall of the first cylinder (6) is provided with an insertion hole (10), and the side wall of the second cylinder (7) is provided with another insertion hole (10). The free ends of the insertion hole (10) and the bolts (9) are connected in an insertion manner to fix the first cylinder (6) and the second cylinder (7) so that they no longer rotate.

2. The agricultural film mulching machine device for agricultural mechanization according to claim 1, characterized in that: The double-layer support (1) is provided with a through groove (11) that runs vertically through the top and bottom, and the upper and lower ends of the moving block (4) slide left and right in the through groove (11).

3. The agricultural film mulching machine device for agricultural mechanization according to claim 2, characterized in that: A rotating plate is fixedly provided at the end of the twin screw (3), and a gap is provided between the rotating plate and the double-layer bracket (1). A handle is installed at one end of the rotating plate.

4. The agricultural mulching film making machine device for agricultural mechanization according to claim 1, characterized in that: The first cylinder (6) has a sliding groove inside, and a sliding tube (12) is slidably connected inside the sliding groove. A plug rod (13) is slidably connected inside the sliding tube (12).

5. The agricultural film mulching machine device for agricultural mechanization according to claim 4, characterized in that: One end of the insertion rod (13) inside the slide tube (12) is fixedly provided with a spring (14), and the other end of the spring (14) is fixedly provided on the first cylinder (6).

6. The agricultural film mulching machine device for agricultural mechanization according to claim 5, characterized in that: The cross-section of the insertion rod (13) is rectangular.

7. The agricultural film mulching machine device for agricultural mechanization according to claim 6, characterized in that: The second cylinder (7) has a slot (15) in the middle, and the slot (15) and the plug (13) are connected in an interlocking manner.

8. The agricultural film mulching machine device for agricultural mechanization according to any one of claims 1-7, characterized in that: Limiting plates (16) are provided on both the first cylinder (6) and the second cylinder (7).