Film cutting device for rice transplanting and film mulching all-in-one machine

Abstract

The invention discloses a film cutting device for a rice transplanting and film covering all-in-one machine, which comprises a first support beam, a second support beam, a first mounting plate, a second mounting plate, a hydraulic oil cylinder, a knife rest and a cutter, and the first support beam and the second support beam are connected with each other; one end of the hydraulic oil cylinder is hinged to the upper end of the second support beam, and the other end of the hydraulic oil cylinder is hinged to the tool rest which is hinged to the lower end of the second support beam; the first mounting plate and the second mounting plate are detachably connected, the second mounting plate is fixed on the first bracket beam, and the first mounting plate is detachably mounted on the rice transplanting and film mulching all-in-one machine; the strength of the first mounting plate is smaller than that of the first support beam and the second support beam. The first mounting plate is arranged as a safety device, bending deformation of the first support beam and the second support beam is avoided, the first mounting plate is easy to replace, the whole film cutting device does not need to be replaced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a film cutting device for a rice transplanting and film covering integrated machine. Background Art

[0002] Transplanting and mulching is an extremely critical link in the process of crop planting, and the transplanting and mulching machine is an effective tool for this link. When using the transplanting and mulching machine for operation, it can complete the transplanting and mulching work at the same time. The mulch film covers the farmland soil, allowing the soil to fully absorb the light energy emitted by the sun, thereby increasing the ground temperature, which is conducive to the germination and growth of crop seeds. At the same time, the mulch film can reduce the evaporation of soil moisture, achieve the effect of water storage and moisture conservation, and provide a stable water supply for crops. Moreover, the soil covered by the mulch film becomes loose due to the increase in temperature. This loose soil environment can promote the transformation of soil nutrients and provide more nutrients for the growth of crops. At night, the mulch film has the function of heat preservation. It slows down the rate of decline of soil temperature and maintains a relatively stable temperature environment of the soil, which is conducive to the growth of crops. This phenomenon is the so-called "greenhouse effect". The transplanting and mulching machine has promoted the development of modern agriculture with efficient and accurate operation methods. After the mulching reaches a certain degree, the transplanting and mulching machine needs to cut off the mulch film according to the actual situation in the field. At this time, the film cutting device is used.

[0003] When the rice transplanter and film covering machine is operating in the field, it needs to frequently go up and down the ridges. Problems will arise when there is a large height difference between some ridges and fields. Since the film cutting device is far away from the rear wheel, when the rear wheel of the rice transplanter and film covering machine goes down to the field, the film cutting device may still remain on the ridge, thereby colliding with the ridge; and when the rice transplanter and film covering machine goes up from the field to the ridge, the rear wheel has already climbed onto the ridge, but the film cutting device may still remain in the field, thereby colliding with the field. If the collision is frequent or the collision is too intense, the support beam on the film cutting device is prone to bending and deformation. At present, there is only one connection point between the two existing support beams, which makes them extremely easy to explode when impacted by external force. Since the support beam and parts such as the knife holder of the film cutting device are fixed together, once the support beam is damaged, the film cutting device needs to be replaced as a whole, which undoubtedly increases the maintenance cost. Summary of the invention

[0004] In view of the problems that the support beam of the film cutting device of the existing rice transplanting and film covering machine is easy to bend and deform, and the film cutting device needs to be replaced as a whole after damage, the present invention provides a film cutting device for a rice transplanting and film covering machine. By arranging a first mounting plate as a safety device, bending and deformation of the first support beam and the second support beam are avoided, and the first mounting plate is easy to replace, and there is no need to replace the film cutting device as a whole, thereby reducing maintenance costs.

[0005] The technical solution adopted by the present invention is:

[0006] A film cutting device for a rice transplanting and film covering machine comprises a first support beam, a second support beam, a first mounting plate, a second mounting plate, a hydraulic cylinder, a knife holder and a cutter, wherein the first support beam and the second support beam are connected to each other; one end of the hydraulic cylinder is hinged to the upper end of the second support beam, and the other end is hinged to the knife holder, and the knife holder is hinged to the lower end of the second support beam, and the cutter is fixed on the knife holder at one end away from the second support beam; the first mounting plate and the second mounting plate are detachably connected, and the second mounting plate is fixed on the first support beam, and the first mounting plate is detachably mounted on the rice transplanting and film covering machine; the strength of the first mounting plate is less than that of the first support beam and the second support beam.

[0007] Furthermore, it also includes a first auxiliary arm and a second auxiliary arm which are hinged to each other, the first auxiliary arm is hinged on the second support beam, and the first auxiliary arm is arranged parallel to the tool holder, the second auxiliary arm is connected to the tool holder through a rotating shaft, and an auxiliary plate is fixed to the end of the second auxiliary arm away from the first auxiliary arm.

[0008] Furthermore, the upper and lower ends of the first support beam are fixedly connected to the second support beam through a first connecting plate and a second connecting plate respectively.

[0009] Furthermore, an extension plate extending to above the second support beam is fixed to the top of the first support beam, and the extension plate is connected to the top of the second support beam by bolts.

[0010] Furthermore, the upper end of the first support beam and the upper end of the second support beam are hinged, a tension spring is fixed under the second support beam, the other end of the tension spring is fixed on the second mounting plate or the first support beam, and an active cavity for the tension spring to move is provided in the first support beam.

[0011] Furthermore, the upper surface of the movable cavity is inclined upward toward one end close to the second support beam.

[0012] Furthermore, a first mounting plate is fixed on the first support beam, and the first mounting plate extends to the side of the second support beam, an arc-shaped slide groove is arranged on the first mounting plate facing the second support beam, and a slider that can slide in the arc-shaped slide groove is fixed on the second support beam, and the arc center of the arc-shaped slide groove is the hinge point between the first support beam and the second support beam.

[0013] Furthermore, the cutting knife is arranged perpendicular to the knife holder.

[0014] Furthermore, the first mounting plate and the second mounting plate are connected by bolts, and the first mounting plate is mounted on the rice transplanting and film covering machine by bolts.

[0015] Furthermore, the length of the first mounting plate is greater than that of the second mounting plate, and the portion of the first mounting plate protruding from the second mounting plate is used for connection with the rice transplanting and film covering machine.

[0016] The beneficial effects of the present invention are:

[0017] The film cutting device for the rice transplanting and film covering machine described in the present invention uses a first mounting plate as a safety feature to prevent the first support beam and the second support beam from bending and deforming. The first mounting plate is easy to replace, and there is no need to replace the film cutting device as a whole, thereby reducing maintenance costs.

[0018] In the present invention, the first support beam and the second support beam are fixed by the first connecting plate and the second connecting plate, and an extension plate is provided to fix the first support beam and the second support beam, thereby increasing the connection points between the first support beam and the second support beam, increasing the stability of the connection between the two, and avoiding explosion between the two.

[0019] In the present invention, the upper end of the first support beam and the upper end of the second support beam are hinged, so that when the film cutting device comes into contact with the ridge / field, the second support beam can rotate around the first support beam to avoid the film cutting device directly colliding violently with the ridge / field, and a tension spring is provided. When the film cutting device does not come into contact with the ridge / field, the second support beam is reset under the action of the tension spring. In addition, by providing an arc chute and a slider, on the one hand, the arc chute can play a guiding role, and on the other hand, it also increases the connection points between the first support beam and the second support beam, thereby enhancing the connection strength between the two. At the same time, when the slider slides in the arc chute, it does not hinder the second support beam from rotating around the hinge point between it and the first support beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure of the film cutting device used for the rice transplanting and film covering machine in the first embodiment of the present invention is shown in FIG. Figure 1 .

[0021] Figure 2 The structure of the film cutting device used for the rice transplanting and film covering machine in the first embodiment of the present invention is shown in FIG. Figure 2 .

[0022] Figure 3 The structure of the film cutting device used in the rice transplanting and film covering machine in the second embodiment of the present invention is shown in FIG. Figure 1 .

[0023] Figure 4 The structure of the film cutting device used in the rice transplanting and film covering machine in the second embodiment of the present invention is shown in FIG. Figure 2 .

[0024] In the figure, 1. first support beam, 11. extension plate, 12. movable cavity, 2. second support beam, 21. slider, 31. first mounting plate, 32. second mounting plate, 4. hydraulic cylinder, 5. tool holder, 6. cutter, 7. tension spring, 81. first connecting plate, 811. arc-shaped slide groove, 82. second connecting plate, 91. first auxiliary arm, 92. second auxiliary arm, 93. auxiliary plate. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the specific implementation modes of the accompanying drawings, but the protection scope of the present invention is not limited thereto.

[0026] Embodiment 1

[0027] Figure 1-2 This is an embodiment of the film cutting device structure for the rice transplanting and film covering machine described in the present invention, and the film cutting device includes a first support beam 1, a second support beam 2, a first mounting plate 31, a second mounting plate 32, a hydraulic cylinder 4, a knife holder 5 and a cutter 6. The first support beam 1 and the second support beam 2 are connected to each other. Specifically, in this embodiment, the upper and lower ends of the first support beam 1 are fixedly connected to the second support beam 2 through a first connecting plate 81 and a second connecting plate 82, respectively, that is, the upper ends of the first support beam 1 and the second support beam 2 are fixedly connected to the first connecting plate 81, and the lower ends of the first support beam 1 and the second support beam 2 are fixedly connected to the second connecting plate 82. They can be fixed by welding, thereby realizing a fixed connection between the first support beam 1 and the second support beam 2, and there are two connection points between the first support beam 1 and the second support beam 2, which increases the stability of the connection between the two and avoids the two from bursting. An extension plate 11 extending to the top of the second support beam 2 is fixed to the top of the first support beam 1, and the extension plate 11 is connected to the top of the second support beam 2 by bolts, further increasing the connection points between the first support beam 1 and the second support beam 2. When connecting the first support beam 1 and the second support beam 2, the first support beam 1 and the second support beam 2 are first connected with the bolts on the extension plate 11, which is also convenient for fixing the first support beam 1 and the second support beam 2 using the first connecting plate 81 and the second connecting plate 82 to avoid movement of the first support beam 1 and the second support beam 2 when they are fixed, such as facilitating welding.

[0028] One end of the hydraulic cylinder 4 is hinged to the upper end of the second support beam 2, and the other end is hinged to the knife holder 5, and the knife holder 5 is hinged to the lower end of the second support beam 2. The cutter 6 is fixed on the knife holder 5 at one end away from the second support beam 2. When the hydraulic cylinder 4 is working, it will drive the knife holder 5 to rotate around the hinge point between it and the second support beam 2, and then drive the cutter 6 to rotate around the hinge point. When the cutter 6 is driven to move downward, the ground film can be cut. The cutter 6 is arranged perpendicular to the knife holder 5, so that the direction of force transmission is consistent with the direction of movement of the cutter 6. When cutting the ground film, the power can be more effectively converted into cutting force, reducing the loss of force. The first mounting plate 31 and the second mounting plate 32 are detachably connected, and the second mounting plate 32 is fixed on the first support beam 1. The first mounting plate 31 is detachably installed on the rice transplanting and film covering machine. Specifically in this embodiment, the first mounting plate 31 and the second mounting plate 32 are connected by bolts, and the first mounting plate 31 is installed on the rice transplanting and film covering machine by bolts. The length of the first mounting plate 31 is greater than that of the second mounting plate 32, and the portion of the first mounting plate 31 protruding from the second mounting plate 32 is used to connect with the rice transplanting and film covering machine to leave space for convenient installation operations, such as conveniently using tools to tighten bolts for disassembly and assembly. And the strength of the first mounting plate 31 is less than the strength of the first support beam 1 and the second support beam 2. When the film cutting device collides frequently or the collision is too intense, the first mounting plate 31 takes precedence in bending and deformation. Since the first mounting plate 31 and the second mounting plate 32 and the rice transplanting and film covering machine are all installed in a detachable connection, that is, the first mounting plate 31 is easy to replace. When the first mounting plate 31 is bent and deformed, the first mounting plate 31 is directly replaced without replacing the film cutting device as a whole, thereby reducing maintenance costs; the first mounting plate 31 is set as a safety device to prevent the first support beam 1 and the second support beam 2 from bending and deformation.

[0029] The film cutting device also includes a first auxiliary arm 91 and a second auxiliary arm 92 which are hinged to each other. The first auxiliary arm 91 is hinged to the second support beam 2 and is arranged parallel to the tool holder 5. The second auxiliary arm 92 is connected to the tool holder 5 via a rotating shaft, and the two are rotatably connected in sequence. An auxiliary plate 93 is fixed to the end of the second auxiliary arm 92 away from the first auxiliary arm 91. When the hydraulic cylinder 4 works to drive the tool holder 5 to rotate around the rotating shaft between it and the second support beam 2, it will drive the second auxiliary arm 92 to move, and then drive the auxiliary plate 93 fixed on the second auxiliary arm 92 to move. Figure 2 As shown, when the knife holder 5 drives the cutter 6 to move to the bottom to cut the film, the auxiliary plate 93 abuts against the knife surface of the cutter 6.

[0030] Embodiment 2

[0031] Different from the first embodiment, in this embodiment, the upper end of the first support beam 1 and the upper end of the second support beam 2 are hinged, a tension spring 7 is fixed below the second support beam 2, the other end of the tension spring 7 is fixed to the second mounting plate 32 or the first support beam 1, and an activity cavity 12 for the tension spring 7 to move is provided in the first support beam 1. Figure 3-4 As shown, when the film cutting device comes into contact with the ridge / field, the cutter 6 and the knife holder 5 move under the action of the ridge / field, driving the second support beam 2 to rotate around the hinge point between it and the first support beam 1, avoiding the film cutting device from directly colliding violently with the ridge / field. When the film cutting device does not come into contact with the ridge / field, the second support beam 2 is reset under the action of the tension spring 7. The upper surface of the movable cavity 12 is tilted upward toward one end of the second support beam 2, so that when the second support beam 2 rotates around the hinge point between it and the first support beam 1, the tension spring 7 can remain in a straightened state in the movable cavity 12, facilitating the transmission of the tension of the tension spring 7 when the second support beam 2 is reset. A first mounting plate 31 is fixed on the first support beam 1, and the first mounting plate 31 extends to the side of the second support beam 2. An arc-shaped slide groove 811 is arranged on the first mounting plate 31 opposite to the second support beam 2. A slider 21 that can slide in the arc-shaped slide groove 811 is fixed on the second support beam 2. The arc center of the arc-shaped slide groove 811 is the hinge point between the first support beam 1 and the second support beam 2. On the one hand, the arc-shaped slide groove 811 can play a guiding role. On the other hand, it also increases the connection points between the first support beam 1 and the second support beam 2, thereby enhancing the connection strength between the two. At the same time, when the slider 21 slides in the arc-shaped slide groove 811, it does not hinder the second support beam 2 from rotating around the hinge point between it and the first support beam 1.

[0032] The examples are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essential content of the present invention belong to the protection scope of the present invention.

Claims

1. A film cutting device for a rice transplanting and film covering machine, characterized in that: The invention comprises a first support beam (1), a second support beam (2), a first mounting plate (31), a second mounting plate (32), a hydraulic cylinder (4), a knife frame (5) and a cutter (6); the first support beam (1) and the second support beam (2) are connected to each other; one end of the hydraulic cylinder (4) is hinged to the upper end of the second support beam (2), and the other end is hinged to the knife frame (5); the knife frame (5) is hinged to the lower end of the second support beam (2); the cutter (6) is fixed to one end of the knife frame (5) away from the second support beam (2); the first mounting plate (31) and the second mounting plate (32) are detachably connected, and the second mounting plate (32) is fixed to the first support beam (1); the first mounting plate (31) is detachably mounted on the rice transplanting and film covering integrated machine; the strength of the first mounting plate (31) is less than the strength of the first support beam (1) and the second support beam (2).

2. The film cutting device for the rice transplanting and film covering integrated machine according to claim 1, characterized in that: The invention also comprises a first auxiliary arm (91) and a second auxiliary arm (92) which are hinged to each other, wherein the first auxiliary arm (91) is hinged to the second support beam (2), and the first auxiliary arm (91) is arranged parallel to the tool holder (5), the second auxiliary arm (92) is connected to the tool holder (5) via a rotating shaft, and an auxiliary plate (93) is fixed to one end of the second auxiliary arm (92) away from the first auxiliary arm (91).

3. The film cutting device for the rice transplanting and film covering integrated machine according to claim 1, characterized in that: The upper and lower ends of the first support beam (1) are fixedly connected to the second support beam (2) via a first connecting plate (81) and a second connecting plate (82) respectively.

4. The film cutting device for the rice transplanting and film covering integrated machine according to claim 3, characterized in that: An extension plate (11) extending to the top of the second support beam (2) is fixed to the top of the first support beam (1), and the extension plate (11) is connected to the top of the second support beam (2) via bolts.

5. The film cutting device for the rice transplanting and film covering integrated machine according to claim 1, characterized in that: The upper end of the first support beam (1) and the upper end of the second support beam (2) are hinged, a tension spring (7) is fixed below the second support beam (2), the other end of the tension spring (7) is fixed on the second mounting plate (32) or the first support beam (1), and an active cavity (12) for the tension spring (7) to move is provided in the first support beam (1).

6. The film cutting device for the rice transplanting and film covering integrated machine according to claim 5, characterized in that: The upper surface of the movable cavity (12) is arranged to be inclined upwards towards one end of the second support beam (2).

7. The film cutting device for the rice transplanting and film covering integrated machine according to claim 5, characterized in that: A first mounting plate (31) is fixed on the first support beam (1), and the first mounting plate (31) extends to the side of the second support beam (2), an arc-shaped slide groove (811) is arranged on the first mounting plate (31) directly opposite to the second support beam (2), a slider (21) that can slide in the arc-shaped slide groove (811) is fixed on the second support beam (2), and the arc center of the arc-shaped slide groove (811) is the hinge point between the first support beam (1) and the second support beam (2).

8. The film cutting device for the rice transplanting and film covering integrated machine according to claim 1, characterized in that: The cutting knife (6) is arranged perpendicular to the knife holder (5).

9. The film cutting device for the rice transplanting and film covering integrated machine according to claim 1, characterized in that: The first mounting plate (31) and the second mounting plate (32) are connected via bolts, and the first mounting plate (31) is mounted on the rice transplanting and film covering integrated machine via bolts.

10. The film cutting device for the rice transplanting and film covering integrated machine according to claim 1, characterized in that: The length of the first mounting plate (31) is greater than the length of the second mounting plate (32), and the portion of the first mounting plate (31) protruding from the second mounting plate (32) is used for connection with the rice transplanting and film covering integrated machine.

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