Cutting blade

Abstract

The utility model relates to a cutting blade which comprises a cutter, the cutter comprises a long edge, one side of the long edge is provided with a short edge, the long edge is provided with three fixing holes, the top of the long edge is provided with a cutting edge, the joint of the long edge and the short edge is provided with an arc part, and the top of the short edge is provided with a sharp corner part. Automatic bag breaking is achieved; the multi-cutting-edge structure is more beneficial to bag breaking; when the cutter is combined for use, compared with material bag adhesion caused when the cutting edge of a common cutter is not sharp, the bag breaking effect is not affected by abrasion of the structure within a certain range, and the service life of the cutter is prolonged in disguised mode.

Description

Technical Field

[0001] This utility model relates to the field of blade technology, and in particular to a cutting blade. Background Technology

[0002] Existing utility knives often fail to cut through completely in one go, and require frequent blade replacements, making them unsuitable for use in automated equipment. The common triangular blades become dull after wear, and the force exerted during the cutting process can lift the woven bag, preventing it from being cut through. Furthermore, ineffectively cut bags tend to stick together, resulting in uneven material flow after the bag is broken. The high blade replacement frequency also makes them unsuitable for use in automated equipment. Utility Model Content

[0003] The purpose of this invention is to provide a cutting blade to solve the problems mentioned in the background section.

[0004] The technical solution of this utility model is a cutting blade, including a blade. The blade includes a long side, a short side on one side of the long side, three fixing holes on the long side, a cutting edge on the top of the long side, an arc portion at the junction of the long side and the short side, and a sharp corner portion on the top of the short side.

[0005] In one embodiment, the blade adopts a cutting edge form that combines sharp angles and rounded edges. Compared with a single cutting edge, this helps to reduce the impact of the undulations of the woven bag on the bag-breaking effect during the bag-breaking process.

[0006] In one embodiment, the knife can be used with automated equipment to achieve an automated bag-breaking process.

[0007] In one embodiment, the arc structure of the blade effectively changes the cutting force component, making it consistent with the cutting direction, which is beneficial for cutting through the bag. At the same time, it also reduces the influence of the blade's force component on the position of the woven bag after the blade wears down, and prevents the woven bag from being lifted up during lateral movement.

[0008] In one embodiment, the two cutting edges work separately for different processes of breaking the bag, effectively improving the service life of the cutting tool.

[0009] The beneficial effects provided by this utility model are:

[0010] This invention is applicable to automated equipment, enabling automatic bag breaking; its multi-blade structure is more conducive to bag breaking; and its integrated blade design, compared to the bag sticking caused by dull blades in ordinary blades, means that wear within a certain range does not affect the bag breaking effect, thus indirectly improving the blade's service life. Attached Figure Description

[0011] Figure 1This is a schematic diagram of the cutting tool structure of this utility model;

[0012] Figure 2 This is a schematic diagram showing the arrangement of the four corners of the cutting tool of this utility model;

[0013] Figure 3 This is a top view showing the arrangement of the four corners of the cutting tool of this utility model.

[0014] In the attached diagram, 1 is the cutting tool; 2 is the fixing hole; 3 is the long side; 4 is the cutting edge; 5 is the arc part; 6 is the sharp corner part; and 7 is the short side. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0016] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0017] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 As shown, a cutting blade includes a blade 1. The blade 1 includes a long side 3, a short side 7 on one side of the long side 3, three fixing holes 2 on the long side 3, a cutting edge 4 on the top of the long side 3, an arc portion 5 at the junction of the long side 3 and the short side 7, and a sharp corner portion 6 on the top of the short side 7.

[0018] The blade 1 adopts a cutting edge 4 that combines a sharp angle and a rounded arc. Compared with a single cutting edge 4, it helps to reduce the impact of the undulation of the woven bag on the bag breaking effect during the bag breaking process. The blade 1 can be used with automated equipment to realize the automatic bag breaking process. The rounded arc structure of the blade 1 effectively changes the cutting force component, making it consistent with the cutting direction, which is conducive to cutting and breaking the bag. At the same time, it also reduces the impact of the component force of the cutting edge 4 on the position of the woven bag after wear. It will not lift the woven bag during lateral movement. The two cutting edges 4 act separately for different processes of bag breaking, effectively improving the service life of the blade 1.

[0019] Considering the overall usage scenario, a combination of arcs and straight lines is adopted, with the overall outline in the shape of an "L". The long side 3 of the tool 1 is the mounting side, with a fixing hole 2. The front end of the short side 7 is a sharp corner 6, and the rear end of the short side 7 is an arc part 5. The arc part 5 and the hypotenuse of the sharp corner part 6 intersect at a point and are tangent to the long side 3.

[0020] The bag-breaking process mainly consists of two parts: piercing and lateral cutting. The pointed part 6 of the blade 1 easily pierces the surface of the woven bag. The lateral cutting process mainly utilizes the arc part 5 for cutting. The arc part 5 can effectively change the cutting force, making it consistent with the cutting direction. At the same time, the arc part 5 can also accommodate the undulations of the woven bag during movement, reducing adhesion issues such as incomplete cutting caused by the blade 1 detaching. Accordingly, cutting edges 4 are machined on both the pointed part 6 and the arc part 5. Since the cutting force is consistent with the cutting direction, when the blade... Even after the tip 4 becomes worn and dull, it can still maintain a certain bag-breaking effect, thus improving the life of the blade 1. The sharp corner part 6 is mainly used for piercing and breaking, while the rounded part 5 is mainly used for lateral cutting. The two cutting edges 4 work in stages, which improves the life of the blade 1 compared to a single cutting edge 4. The blade 1 can be made of high-speed steel, 45# steel, stainless steel, etc. The dimensions of the sharp corner part 6 and the rounded part 5 can be adjusted to better suit different bag thicknesses. The blade 1 can also be installed in other ways, such as with a clamp.

[0021] Working principle: This blade 1 is mainly used in automated equipment and is suitable for single-line or four-corner bag breaking. Multiple blades can be used together.

[0022] Taking the four-corner bag breaking method as an example, the four blades 1 are arranged diagonally, initially all located at the center point. The overall usage process mainly consists of two steps: ① When the blade 1 is at the center point, the material is placed on top, and the pointed part 6 of the blade 1 is inserted into the woven bag; ② The blade 1 moves to the four corners at the same time, and the arc part 5 cuts the woven bag, thus breaking the woven bag.

[0023] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0024] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cutting blade, characterized in that, The tool includes a cutting tool (1), which includes a long side (3), a short side (7) on one side of the long side (3), three fixing holes (2) on the long side (3), a cutting edge (4) on the top of the long side (3), an arc part (5) at the junction of the long side (3) and the short side (7), and a sharp corner part (6) on the top of the short side (7).

2. A cutting blade according to claim 1, characterized in that, The cutting tool (1) adopts a cutting edge (4) that combines a sharp corner and a rounded arc.

3. A cutting blade according to claim 1, characterized in that, The cutting tool (1) can be used in automated equipment.

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