CN201758600U - Shearing tool of mulberry shoot reaper - Google Patents

Abstract

The utility model discloses a shearing tool for a mulberry strip cutting machine, which comprises a moving knife and a fixed knife for reciprocating straight-line shearing motion. The moving knife and the fixed knife are evenly arranged with knife teeth, and the blades are set on both sides of the knife teeth. The feature is that the teeth of the movable knife are triangular or trapezoidal with the root of the tooth larger than the top of the tooth, and the edge of the knife tooth of the fixed knife is concave in the tooth body in an arc shape. The trapezoidal movable knife of the utility model cooperates with the arc-shaped fixed knife to effectively prevent slippage of mulberry branches entering the cutting area, and meet the requirements of productivity while improving the quality of mulberry tree cutting.

Description

Mulberry cutting machine shearing cutter

(1) Technical field:

The utility model relates to a cutting tool, in particular to a shearing tool installed on a mulberry cutting machine. the

(two) background technology:

At present, there are more than 20 million peasant households who plant mulberry and raise sericulture in my country. However, sericulture production facilities are relatively backward as a whole, and the harvest of mulberry branches is still mostly done by manual mulberry shears. This manual harvesting method has low labor efficiency and high labor intensity, which restricts the improvement of labor productivity in sericulture. It is far from meeting the needs of large-scale development of sericulture, and it is difficult to improve the economic benefits of mulberry farming and sericulture. the

In order to realize the mechanization requirements of labor-intensive procedures such as mulberry branch harvesting, a small power mulberry tree cutting machine has been designed and used. During the process, mulberry branches tend to slip between the teeth of the driven knife and the fixed knife, resulting in problems such as low pruning efficiency, rough incision, and high power consumption of the machine. the

(3) Contents of utility model:

Aiming at the shortcomings of the existing saw blade type mulberry tree cutting machine shearing tool, the utility model provides a mulberry tree cutting machine shearing tool with improved cutting efficiency and cutting quality. the

The shearing tool of the mulberry tree cutting machine that can achieve the above purpose includes a moving knife and a fixed knife. The side is provided with a blade, which is different from the prior art. This utility model firstly solves the tooth structure of the fixed knife. The cutting edge of the knife adopts a structure that is concave inwards to the tooth body. This concave cutting edge can effectively solve the problem of branches slipping outwards. the

The shape of the concave edge has many forms, but arc is the common form. the

The tooth tip of the fixed knife tooth with the above structure is preferably smaller than the tooth root, so as to widen the opening distance between adjacent knife teeth, increase the number of branches entering, and improve production efficiency. the

The cutter tooth shape of the movable cutter matched with the fixed cutter of the above structure is triangular or trapezoidal in which the dedendum is larger than the dedendum. the

According to the principle of force, the smaller the grinding angle of the moving knife blade, the more labor-saving the shearing, but the too small grinding angle of the blade is likely to cause the edge to break and chip. The test shows that it is more appropriate to choose the grinding angle of 35°～55° , where the most preferred blade grinding angle is 45°. the

The advantage of this utility model:

The tool structure of the shearing tool of the mulberry cutting machine of the utility model is a trapezoidal-to-arc shearing type, which effectively prevents the mulberry strips from slipping during the cutting process, and improves the productivity while ensuring the production efficiency. the

(4) Description of drawings:

Fig. 1 is a schematic diagram of the tooth structure of the movable knife in an embodiment of the present invention. the

Fig. 2 is a schematic structural view of a fixed knife in an embodiment of the present invention. the

Drawing number identification: 1, moving knife; 2, fixed knife. the

(5) Specific implementation methods:

The shearing tool of the mulberry tree cutting machine of the utility model is composed of a moving knife 1 and a fixed knife 2. The single teeth of the moving knife 1 are evenly spaced and installed on the push rod of the mulberry tree cutting machine, and the fixed knife 2 is installed on the mulberry tree cutting machine. On the bottom plate of the fixed knife 2, knife teeth are evenly arranged. the

The teeth of the movable knife 1 are in the shape of a trapezoid with a large dedendum and a small top, and the grinding angle of the knife tooth is 45°; each tooth of the movable knife 1 is provided with two screw mounting holes, as shown in Figure 1 shown. the

The teeth of the fixed knife 2 are in the shape of a waist drum with the root of the tooth larger than the top of the tooth, and the blade edges on both sides of the knife tooth are arc-shaped and recessed into the tooth body; according to the width of the fixed knife 2, evenly arranged screw rods are arranged on the fixed knife 2. Hole position, as shown in Figure 2. the

When the mulberry branch enters the shearing area formed by the teeth of the movable knife 1 and the fixed knife 2, the movable knife 1 and the fixed knife 2 are driven back and forth by the push rod to cut back and forth so as to realize the cutting of the mulberry branch. the

Claims (6)

1. cutting mulberry shoot machine shearing tool, comprise moving knife (1) and the stationary knife (2) done toward the complex line shearing motion, moving knife (1) and stationary knife (2) are gone up the evenly distributed cutter tooth that has, and blade is opened in the cutter tooth both sides, it is characterized in that: the cutter tooth sword limit of described stationary knife (2) is to tooth body sunken inside.

2. cutting mulberry shoot machine shearing tool according to claim 1 is characterized in that: described depression be shaped as arc.

3. cutting mulberry shoot machine shearing tool according to claim 2 is characterized in that: the tooth root width of described stationary knife (2) cutter tooth is greater than tooth top.

4. according to any described cutting mulberry shoot machine shearing tool in the claim 1～3, it is characterized in that: the cutter tooth of described moving knife (1) is triangular shape or the trapezoidal shape of tooth root greater than tooth top.

5. cutting mulberry shoot machine shearing tool according to claim 4 is characterized in that: the blade grinding angle of described moving knife (1) is 35 °～55 °.

6. cutting mulberry shoot machine shearing tool according to claim 5 is characterized in that: the cutter tooth blade grinding angle of described moving knife (1) is 45 °.

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