Special membrane-breaking and seedling-hardening device

Abstract

The utility model relates to a special film breaking and seedling exercising device, and belongs to the technical field of mulching film punching and seedling exercising machinery after peanut sowing. According to the technical scheme, a film breaking wheel (21) comprises a film breaking elastic gear disc (33) and film breaking elastic teeth (35), the multiple film breaking elastic teeth (35) are evenly distributed on the circumference of the film breaking elastic gear disc (33), and the film breaking elastic teeth (35) are bent in the direction opposite to the rotating direction to form elastic tooth hooks; the film breaking elastic gear discs (33) are arranged in parallel in pairs, the middle point between the two film breaking elastic gear discs is correspondingly matched with the center line of a peanut seedling, the two rows of film breaking elastic teeth (35) are oppositely arranged left and right, and the elastic teeth are hooked backwards. According to the utility model, the film breaking wheel is adopted to open holes in the mulching film on the two sides of peanut seedlings, so that the seedlings are prevented from being damaged, the elastic tooth hooks of the film breaking wheel cover the mulching film around the film breaking holes with topsoil through inertia acting force and mulching film counter-acting force during operation, the holes of the mulching film are prevented from being damaged by wind, and effective and timely film breaking and seedling hardening operation after peanut sowing is realized.

Description

Technical Field

[0001] This utility model relates to a special film-breaking and seedling-hardening device, belonging to the field of mechanical technology for perforating and hardening seedlings after peanut sowing. Background Technology

[0002] Peanut seedlings generally need to be hardened off 7-15 days after sowing. Hardening off the film refers to the physical barrier formed by the mulch film after peanut sowing. While this barrier helps retain heat and moisture, if the film isn't broken off in time, it can scorch the seedlings. Timely breaking of the film after sowing allows the peanut seedlings to adapt to the external environment, promotes cotyledon expansion, prevents scorching and damage, and creates favorable conditions for root development. Existing peanut planters cannot be used as hardening-off film devices; specialized peanut hardening-off film devices are required. Examples include Chinese patents CN202120323060.2 (a peanut mulch film perforation device), CN202410734237.6 (a peanut film breaking and seedling release device), and CN202310048697.9 (a peanut planting film breaking and seedling release device). However, these existing technologies all use perforation devices to create holes directly above the peanut seedlings covered by the mulch film, which can easily damage the seedlings. In addition, once the plastic film is perforated, the opening is easily damaged by the wind because there is no soil covering it, thus failing to provide insulation and moisture retention. Utility Model Content

[0003] The purpose of this invention is to provide a dedicated film-breaking and seedling-hardening device. It uses a film-breaking wheel to create holes in the plastic film on both sides of the peanut seedlings, avoiding damage to the seedlings. During operation, the spring-toothed hook of the film-breaking wheel uses inertial force and the reaction force of the plastic film to cover the plastic film around the holes, preventing the holes from being damaged by wind. This achieves effective and timely film-breaking and seedling-hardening after peanut sowing, preventing seedling burn and ensuring normal growth of peanut seedlings, while also maintaining warmth and moisture, thus solving the aforementioned problems in the prior art.

[0004] The technical solution of this utility model is:

[0005] A specialized film-breaking and seedling-hardening device includes a frame and a film-breaking wheel mounted on the frame. The film-breaking wheel comprises a film-breaking gear disc and film-breaking teeth. Multiple film-breaking teeth are evenly distributed on the circumference of the film-breaking gear disc, and the teeth bend in the opposite direction of rotation to form hooks. The film-breaking gear discs are arranged in pairs parallel to each other, with the midpoint between two discs corresponding to the centerline of the peanut seedling. Two rows of film-breaking teeth are arranged opposite each other, with the hooks facing backward. The film-breaking teeth of the film-breaking wheel use the frictional force of the back of the bent portion to cut open the film from the left and right sides of the peanut seedling without damaging it. The back of the hooks creates elongated holes in the film, facilitating ventilation and hardening of the peanut seedlings. Simultaneously, the hooks, through inertial force and the reaction force of the film, cover the loose soil around the holes, preventing strong winds from blowing the entire film through the holes and causing heat loss and moisture dissipation.

[0006] The two membrane-breaking gear disks are connected at their centers by a bushing, and the edges of the two membrane-breaking gear disks are welded together by several membrane-breaking gear disk support rods.

[0007] The membrane-breaking spring tooth bends at an angle of 105 degrees in the opposite direction of rotation to form a spring tooth hook.

[0008] The frame includes a front support for the crushing roller, which is a horizontally arranged portal frame structure consisting of a crossbeam and two vertical beams for the left and right crushing roller supports. The ends of the two vertical beams for the crushing roller supports are provided with rearward-extending rear supports for the crushing roller. The crushing roller and the film-breaking wheel are arranged between the two rear supports for the crushing roller.

[0009] The frame is equipped with a suspension at the front end, which is connected to the tractor to provide power for movement.

[0010] Using this invention, the frame is attached to a tractor, and the film-breaking wheel operates suspended above the plastic film. The back of the curved part of the film-breaking spring tooth of the film-breaking wheel presses against the ground. The midpoint between the two film-breaking spring tooth discs corresponds to the center line of the peanut seedling. The tractor pulls forward, the film-breaking wheel rotates, and the film-breaking spring tooth relies on the friction of the back of the curved part to cut open the plastic film from the left and right sides of the peanut seedling, thus performing the film-breaking operation. At the same time, the spring tooth hook of the film-breaking spring tooth uses inertial force and the reaction force of the plastic film to cover the broken soil on the plastic film around the film-breaking hole, thus completing the peanut film-breaking and hardening operation.

[0011] The innovation of this utility model is as follows: a film-breaking wheel makes holes in the plastic film on both sides of the peanut seedlings to avoid damaging the seedlings; the film-breaking spring teeth are arranged opposite each other on the left and right sides, with the spring tooth hooks facing backward, making long strip-shaped holes in the plastic film to facilitate ventilation and hardening of the peanut seedlings. At the same time, the spring tooth hooks use inertial force and the reaction force of the plastic film to cover the loose soil around the film-breaking holes, preventing strong winds from blowing the entire plastic film through the film-breaking holes, causing heat loss and moisture loss.

[0012] The beneficial effects of this utility model are as follows: The film-breaking wheel makes holes in the plastic film on both sides of the peanut seedlings, avoiding damage to the seedlings. When the film-breaking wheel operates, the spring-tooth hook uses inertial force and the reaction force of the plastic film to cover the plastic film around the hole, preventing the plastic film from being blown away by the wind. This achieves effective and timely film breaking and seedling hardening after peanut sowing, preventing seedling burn and ensuring normal growth of peanut seedlings, while also keeping the soil warm and moist. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0014] Figure 2 This is a schematic diagram of the film-breaking wheel according to an embodiment of the present invention;

[0015] In the diagram: 1. Suspension; 2. Frame; 8. Front support for crushing roller; 12. Rear support for crushing roller; 13. Crushing roller sprocket; 14. Chain; 16. Sprocket for film breaking wheel; 19. Film breaking wheel; 21. Portal support wheel fixing bracket; 22. Support wheel height adjustment mechanism; 24. Support wheel bracket; 25. Support wheel; 26. Roller body; 28. Column nail; 29. ​​Bushing; 31. Bushing positioning bolt; 32. Film breaking spring gear disc; 33. Film breaking spring gear disc support rod; 34. Film breaking spring tooth; 35. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] A dedicated film-breaking and seedling hardening device includes a frame 2 and a film-breaking wheel 21 mounted on the frame. The film-breaking wheel 21 includes a film-breaking spring gear disk 33 and film-breaking spring teeth 35. Multiple film-breaking spring teeth 35 are evenly distributed on the circumference of the film-breaking spring gear disk 33. The film-breaking spring teeth 35 are bent in the opposite direction of rotation to form spring tooth hooks. The film-breaking spring gear disks 33 are arranged in pairs parallel to each other. The midpoint between two film-breaking spring gear disks 33 corresponds to the center line of the peanut seedling. The two rows of film-breaking spring teeth 35 are arranged opposite each other from left to right, with the spring tooth hooks facing backward. The film-breaking spring teeth 35 of the film-breaking wheel 21 rely on the friction of the back of the curved part to cut open the film from the left and right sides of the peanut seedlings without damaging the seedlings; the back of the spring teeth hook opens a long strip of film hole in the film to facilitate ventilation and hardening of the peanut seedlings. At the same time, the spring teeth hook uses the inertial force and the reaction force of the film to cover the loose soil on the film around the film-breaking hole, preventing strong winds from blowing the entire film along the film-breaking hole and causing heat loss and moisture loss.

[0018] The two membrane-breaking gear disks are welded together at their centers via bushings 31, and their edges are welded together via several membrane-breaking gear disk support rods 34.

[0019] The membrane-breaking spring tooth 35 bends at a reverse angle of 105 degrees in the direction of rotation to form a spring tooth hook.

[0020] The frame 2 includes a front support 8 for the crushing roller. The front support 8 for the crushing roller is a horizontally arranged portal frame structure, consisting of a crossbeam and two vertical beams for the left and right crushing roller supports. The ends of the two vertical beams for the crushing roller supports are provided with rearward-extending rear supports 12 for the crushing roller. The film-breaking wheel 21 is located between the two rear supports 12 for the crushing roller.

[0021] The frame 2 is equipped with a suspension 1 at the front end, which is connected to the tractor to provide power for movement.

[0022] Using this invention, the frame is attached to a tractor, and the film-breaking wheel 21 operates suspended on the plastic film. The back of the curved part of the film-breaking spring tooth 35 of the film-breaking wheel 21 presses against the ground. The midpoint between the two film-breaking spring tooth discs 33 corresponds to the center line of the peanut seedling. The tractor pulls forward, the film-breaking wheel 21 rotates, and the film-breaking spring tooth 35 uses the friction force of the back of the curved part to cut open the plastic film from the left and right sides of the peanut seedling to carry out the film-breaking operation. At the same time, the spring tooth hook of the film-breaking spring tooth 35 uses the inertial force and the reaction force of the plastic film to cover the broken soil on the plastic film around the film-breaking hole, thus completing the peanut film-breaking and hardening operation.

[0023] In this embodiment, to break up the compacted soil covering the plastic film, the film-breaking wheel 21 is used in conjunction with the breaking roller 13 and the support wheel 26 to improve the film-breaking and seedling hardening effect. The frame 2 is arranged sequentially from front to back along the forward direction, consisting of the breaking roller 13, the film-breaking wheel 21, and the support wheel 26. The breaking roller 13 includes a roller body 28 and columnar nails 29. Multiple columnar nails 29 are arranged in two or more rows along the circumference on the roller body 28, with two rows forming a group. Each row of columnar nails 29 in a group is inclined away from the other. The film-breaking spring gear discs 33 are arranged in pairs parallel to each other, with each pair of film-breaking spring gear discs 33 corresponding to a group of columnar nails 29 on the breaking roller 13. Correspondingly matched, the midpoint between the two film-breaking spring gear discs 33 and the midpoint between the two rows of columnar nails 29 are aligned with the center line of the peanut seedling; the height of the support wheel 26 is adjustable to ensure that the crushing roller 13 and the film-breaking wheel 21 operate suspended on the mulch film, so that the columnar nails 29 of the crushing roller 13 break the hardened soil on the mulch film without damaging the mulch film, and the film-breaking spring teeth 35 of the film-breaking wheel 21 cut open the mulch film from the left and right sides of the peanut seedling by relying on the friction force of the back of the curved part, without damaging the peanut seedling.

[0024] The crushing roller 13 and the film-breaking wheel 21 are arranged between the two rear supports 12 of the crushing rollers. The crushing roller 13 is equipped with a crushing roller sprocket 14, and the film-breaking wheel 21 is equipped with a film-breaking wheel sprocket 19. The crushing roller sprocket 14 and the film-breaking wheel sprocket 19 are connected by a chain 16. The crushing roller 13 also acts as a traveling wheel, driving the film-breaking wheel 21 to rotate via the chain 16. A vertically upward portal-shaped support wheel fixing bracket 22 is provided at the rear end of the two rear supports 12 of the crushing rollers. The portal-shaped support wheel fixing bracket 22 is equipped with a support wheel height adjustment mechanism 24, and a support wheel bracket 25 is provided at the bottom of the support wheel height adjustment mechanism 24. The support wheel 26 is mounted on the support wheel bracket 25. The support wheel height adjustment mechanism 24 is a known type, such as a screw adjustment mechanism.

[0025] The distance between the two membrane-breaking gear discs 33 is 4cm. Each membrane-breaking gear disc 33 has an opening 6mm wide and 5cm deep along its outer edge, with an opening spaced 32 degrees apart. Membrane-breaking teeth 35 are welded into these openings. The membrane-breaking teeth 35 of the two membrane-breaking gear discs 33 are opposite each other, bending in the opposite direction of rotation to form a backward-facing hook. The membrane-breaking gear disc support rod 34 is a conventional steel bar segment used to connect the outer edges of the two membrane-breaking gear discs 33. A support rod 34 is placed at 120-degree intervals for a fastening connection. The membrane-breaking teeth 35 bend in the opposite direction of rotation at an angle of 105 degrees to form a hook, and the outer diameter of the membrane-breaking teeth 35 is equal to the outer diameter of the cylindrical nail 29 of the crushing roller 13. The film-breaking wheel 21 has long strip-shaped film holes, which facilitates ventilation and hardening of peanut seedlings. The floating soil on the film can cover the area around the film-breaking holes to prevent strong winds from blowing the entire film through the holes, causing heat loss and moisture loss.

[0026] In this embodiment, the two film-breaking wheels 21 use the same hexagonal shaft, which, in conjunction with the two sets of cylindrical nails 29 on the crushing roller, allows for simultaneous film-breaking and hardening operations on two rows of peanuts. The bushings 31 of the two film-breaking wheels 21 are respectively fixed to the same film-breaking wheel shaft by their respective bushing positioning bolts 32. The positions of the pair of film-breaking wheels on the film-breaking wheel shaft can be adjusted using the bushing positioning bolts 32 to match the two sets of cylindrical nails 29 on the crushing roller.

Claims

1. A special membrane-breaking and seedling-hardening device, characterized in that: The machine includes a frame (2) and a film-breaking wheel (21) mounted on the frame. The film-breaking wheel (21) includes a film-breaking spring gear disc (33) and film-breaking spring teeth (35). Multiple film-breaking spring teeth (35) are evenly distributed on the circumference of the film-breaking spring gear disc (33). The film-breaking spring teeth (35) are bent in the opposite direction of rotation to form spring tooth hooks. The film-breaking spring gear discs (33) are arranged in pairs parallel to each other. The midpoint between the two film-breaking spring gear discs (33) corresponds to the center line of the peanut seedling. The two rows of film-breaking spring teeth (35) are arranged opposite each other from left to right, and the spring tooth hooks face backward.

2. The special membrane-breaking and seedling-hardening device according to claim 1, characterized in that: The two membrane-breaking gear disks (33) are connected at their centers by bushings (31), and the edges of the two membrane-breaking gear disks are welded together by several membrane-breaking gear disk support rods (34).

3. A special seedling hardening device according to claim 1 or 2, characterized in that: The membrane-breaking spring tooth (35) bends at an angle of 105 degrees in the opposite direction of rotation to form a spring tooth hook.

4. A special seedling hardening device according to claim 1 or 2, characterized in that: The frame (2) includes a front support (8) for the crushing roller. The front support (8) for the crushing roller is a horizontally arranged portal frame structure, consisting of a crossbeam and two vertical beams for the left and right crushing roller supports. The ends of the two vertical beams for the crushing roller supports are provided with rearward-extending rear supports (12) for the crushing roller. The film-breaking wheel (21) is located between the two rear supports (12) for the crushing roller.

5. A special seedling hardening device according to claim 1 or 2, characterized in that: The frame (2) has a suspension (1) at the front end, which is connected to the tractor.

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