Punching knife and punching device for film mulching rice transplanter and film mulching rice transplanter

Abstract

The punching knife comprises a knife holder and a knife body, the knife holder and the knife body are both of a plate-shaped structure, the knife face of the knife body is perpendicular to the knife holder and fixed to the knife holder, and the knife holder can be fixed to a transverse rod of the punching device. The cutter face of the cutter body is perpendicular to the mounting plate, so that when the rice transplanter works, the cutter face of the cutter body is perpendicular to the ground, in the punching process, the side, close to the ground, of the cutter body is the cutting edge, the side, away from the ground, of the cutter body is the cutter back, the contact area between the cutter body and a mulching film is reduced, and pressure needed for punching is reduced; pressing punching is changed into cutting punching, the situation that punching is uneven and even punching cannot be conducted when the ground is uneven is avoided, and then the punching effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, concretely is a kind of punching cutter, punching device and film transplanting machine for film transplanting machine. BACKGROUND

[0002] When planting crops, generally need to cover plastic mulch on the ground, then seed under film to protect crop seedling growth. After covering mulch, on the one hand, it can effectively block soil heat to dissipate outward, in early spring low temperature season, for soil to accumulate more heat, realize the effect of warming, let crop seedling can germinate in suitable warm environment quickly;On the other hand, it tightly locks up soil moisture, greatly reduces water evaporation, plays the role of soil conservation. After covering mulch on the ground, if need to realize seed under film, generally use punching cutter to punch hole on the suitable position of mulch, then insert crop seedling into the hole punched, to provide suitable environment for crop seedling.

[0003] The punching cutter of existing film transplanting machine is arranged close to parallel to ground when working, two cutting edges of punching cutter press mulch after contacting with mulch, realize hole opening by the pressure of cutting edge to mulch, this punching mode needs the pressure of cutting edge to mulch to reach the critical value of mulch rupture to open hole, when ground is slightly uneven, such as low-lying, the pressure of punching cutter to mulch is not enough, it is easy to lead to uneven hole, even can not open hole, seriously affect the effect of transplanting. Therefore, punching cutter structure needs to be improved to improve the hole punching effect of punching cutter. SUMMARY

[0004] In view of the uneven hole or even cannot open hole of existing punching cutter when ground is uneven, the utility model provides a kind of punching cutter, punching device and film transplanting machine for film transplanting machine. The lower edge of the cutting edge of the cutting body of the punching cutter is in contact with the mulch to punch hole when the film transplanting machine works, the contact area between the cutting body and the mulch is reduced, the punching is changed to cutting, the difficulty of punching is reduced, the uneven hole or even cannot open hole caused by uneven ground is avoided, and the punching effect is improved.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A punching cutter for film transplanting machine, characterized by comprising a seat and a cutting body, both the seat and the cutting body are plate-shaped structures, the cutting face of the cutting body is perpendicular to the seat and fixed on the seat, and the seat can be fixed on the crossbar of a punching device.

[0007] Further, the seat has a plurality of mounting holes, and the seat is fixed on the crossbar of the punching device by bolts.

[0008] Further, the number of mounting holes is 2-5, and the mounting holes are arranged at equal intervals.

[0009] Further, the mounting hole is a waist groove hole.

[0010] Further, one side of the cutter body close to the ground is a cutting edge, and the other side away from the ground is a cutting back, and the cutting back is chamfered or rounded.

[0011] A punching device for a film mulching transplanter, characterized in that a plurality of punching knives are mounted on a cross rod of the punching device at equal intervals, and the cutter body is perpendicular to the ground.

[0012] A film mulching transplanter, characterized in that the punching knife is arranged as described in the utility model, and the cutter body is perpendicular to the ground.

[0013] The utility model has the advantages of:

[0014] The utility model discloses a punching knife, which is arranged as described in the utility model, and the cutter body is perpendicular to the ground.

[0015] The utility model discloses a punching knife, which is arranged as described in the utility model, and the cutter body is perpendicular to the ground.

[0016] The utility model discloses a punching knife, which is arranged as described in the utility model, and the cutter body is perpendicular to the ground. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model discloses a punching knife, which is arranged as described in the utility model, and the cutter body is perpendicular to the ground.

[0018] Figure 2 The utility model discloses a punching knife, which is arranged as described in the utility model, and the cutter body is perpendicular to the ground.

[0019] In the drawing, 1 is a knife holder, 2 is a cutter body, and 3 is a mounting hole. DETAILED DESCRIPTION

[0020] The utility model discloses a punching knife, which is arranged as described in the utility model, and the cutter body is perpendicular to the ground.

[0021] Figure 1, Figure 2 This is a specific embodiment of the perforating knife for a rice transplanter with mulching according to this utility model. The perforating knife includes a knife holder 1 and a knife body 2, both of which are plate-shaped structures, such as steel plates. The blade surface of the knife body 2 is perpendicular to the knife holder 1 and fixed to it. The knife holder 1 is used to install the perforating knife onto the rice transplanter. The knife holder 1 has several mounting holes 3 in the vertical direction. The extension length of the knife body 1 can be adjusted by connecting the mounting holes 3 at different positions with bolts, thereby adjusting the size of the holes punched by the perforating knife, making it suitable for different crops and soils with different hardness. In this embodiment, the number of mounting holes 3 is 2-5. Too few mounting holes 3 will not be effective in adjusting the installation position, while too many will cause the length of the knife holder 1 to be too long, affecting the use of the perforating knife. The knife holder 1 can also be installed on the perforating device using other commonly used installation methods.

[0022] In this invention, the blade 2 is positioned perpendicular to the blade holder 1, ensuring that the blade surface is perpendicular to the ground during operation. This reduces the contact area between the blade 2 and the plastic film. A smaller contact area means less pressure is required during initial piercing of the film, which is particularly important for uneven ground. It allows for easy penetration even on varying terrains, reducing drilling difficulty and preventing uneven or impossible drilling on uneven surfaces, thus improving drilling efficiency. During drilling, the side of the blade 2 closest to the ground is the cutting edge, and the side furthest from the ground is the back of the blade. The back of the blade is chamfered or rounded to prevent collisions and damage to people or other objects during operation.

[0023] Meanwhile, this utility model also provides a punching device for a film-covered rice transplanter using the punching knife described in this utility model, and a film-covered rice transplanter.

[0024] The examples described 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 shall fall within the protection scope of the present invention.

Claims

1. A punching blade for a rice transplanter with film mulching, characterized in that: It includes a tool holder (1) and a tool body (2). Both the tool holder (1) and the tool body (2) are plate-shaped structures. The blade surface of the tool body (2) is perpendicular to the tool holder (1) and fixed on the tool holder (1). The tool holder can be fixed on the crossbar of the drilling device.

2. The punching blade for the mulched rice transplanter according to claim 1, characterized in that, The tool holder (1) has a groove or several mounting holes (3), and the tool holder is fixed to the crossbar of the drilling device by bolts.

3. The punching blade for the rice transplanter with film covering according to claim 2, characterized in that, The number of mounting holes (3) is 2-5, and they are set at equal intervals.

4. The punching blade for the rice transplanter with film covering according to claim 1, characterized in that, The blade (2) has a blade edge on the side closest to the ground and a back edge on the side furthest from the ground. The back edge is chamfered or rounded.

5. A punching device for a mulched rice transplanter, characterized in that, The device includes a plurality of punching knives as described in any one of claims 1-4, wherein the punching knives are mounted at equal intervals on the crossbar of the punching device, and the blade surface of the knife body (2) is perpendicular to the ground.

6. A rice transplanter with film mulching, characterized in that, The punching tool according to any one of claims 1-4 is used, and the blade surface of the tool body (2) is set perpendicular to the ground.

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