Easily-fed steel cold shear blade device

Abstract

The utility model aims to provide the cold shear blade device capable of easily entering steel, which solves the problem that the production progress of track steel cutting is slow, the upper shear blade is arranged above the lower shear blade, the upper cutting edge is arranged on the upper shear blade, the upper cutting edge is bent to form at least two tooth-shaped recesses, the shapes of the tooth-shaped recesses are matched with the teeth of track steel, the lower shear blade is provided with the lower cutting edge, and the lower cutting edge is arranged on the lower shear blade. The shape of the lower cutting edge is matched with the back face of the track steel, at least one side of the lower cutting edge is further provided with a track steel sliding-in opening, at least one side of the lower cutting edge is provided with a slope face, and if the front end of the rest track steel is in lap joint with the slope face in the moving process, the track steel can still move upwards along the slope face. The crawler steel is finally moved to the lower cutting edge and is matched with the lower cutting edge, in the process, the movement of the crawler steel has continuity and is not interrupted in the middle, cutting is not interrupted when the upper cutting edge is matched with the lower cutting edge, the cutting production progress is accelerated, and therefore the problem that the cutting production progress of the crawler steel is slow is solved.

Description

Technical Field

[0001] The utility model relates to track steel cutting, in particular to an easy-feed steel cold shear blade device. Background Art

[0002] Track steel needs to be cut after production. The existing patent publication number CN209902344U discloses a durable track steel cold shear blade device, which is to cut a long section of track steel into the required length. The track steel moves to the lower shear blade, and then the upper shear blade descends, and the upper shear blade and the lower shear blade cut together. After cutting, the remaining track steel continues to move to the lower shear blade. Track steels of different types or materials have different hardnesses. Part of the track steel will be against the side of the lower shear blade during movement and cannot be directly moved to the lower shear blade. Therefore, additional manual assistance is required, resulting in low work efficiency, incontinuous cutting, and slow production progress.

[0003] In view of the shortcomings of the existing technology, how to improve the production progress of track steel cutting is a problem that needs to be solved. Utility Model Content

[0004] The utility model aims to provide an easy-feed steel cold shear blade device, which solves the problem of slow production progress of track steel cutting.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model provides an easy-feed steel cold shear blade device, comprising an upper shear blade and a lower shear blade that match each other, the upper shear blade being arranged above the lower shear blade, the upper shear blade being provided with an upper cutting edge, the upper cutting edge being bent to form at least two tooth-shaped depressions, the shapes of the tooth-shaped depressions matching the teeth of the track steel, the lower shear blade being provided with a lower cutting edge, the shape of the lower cutting edge matching the back side of the track steel, at least one side of the lower cutting edge also forming an opening for the track steel to slide into, and the utility model is characterized in that at least one side of the lower shear blade is provided with a slope.

[0007] Optionally, the slope surface is connected to the lower cutting edge, and the length of the slope surface is consistent with the length of the lower cutting edge.

[0008] Optionally, the slope is chamfered.

[0009] Optionally, the slope surface is a curved surface.

[0010] Optionally, a smooth protective layer is provided on the slope surface.

[0011] Furthermore, the slope chamfer angle ranges from 45° to 89°.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] The utility model discloses an easy-feed steel cold shear blade device. Since a slope is arranged at the feeding end of the lower shear blade, if the front end of the remaining track steel overlaps the slope during the movement, the track steel can still move upward along the slope, and the track steel finally moves to the lower blade edge and matches the lower blade edge. During this process, the movement of the track steel is continuous without interruption. Therefore, the upper shear blade cooperates with the lower shear blade for uninterrupted cutting, which improves the cutting production progress, thereby solving the problem of slow track steel cutting production progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0015] Figure 1 It is a structural schematic diagram of an easy-feed steel cold shear blade device according to a preferred embodiment of the utility model;

[0016] Figure 2 yes Figure 1 A partial enlarged schematic diagram of the upper shear blade and the lower shear blade in the illustrated embodiment;

[0017] Figure 3 It is a schematic diagram of the slope;

[0018] Figure 4 yes Figure 1 A side view schematic diagram of the upper and lower shear blades working in cooperation in the illustrated embodiment.

[0019] The reference numerals are described as follows:

[0020] 1. Power area; 11. Motor; 12. Flywheel; 13. Pinion; 14. Hanging wheel; 15. Hanging plate; 16. V-belt; 2. Knife installation area; 21. Slider base; 22. Upper shear blade; 221. Upper cutting edge; 2211 Toothed depression; 23. Arch machine base; 231. Slide groove; 24. Lower shear blade; 241. Lower cutting edge; 25. Limit block; 3. Bolt; 4. Two-tooth track steel; 41. Teeth; 42. Back; 5. Slope. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] like Figure 1 and Figure 2 As shown, it includes a power area 1 and a tool installation area 2. The power area 1 drives the tool in the tool installation area 2 to work. Two limit blocks 25 are installed on the upper part of the tool installation area 2. A vertical limit groove is formed on the opposite sides of the two limit blocks 25. The slider base 21 is clamped in the limit groove. The limit groove guides the slider base 21 to slide up and down in the vertical direction. An upper shear blade 22 is installed on the lower part of the slider base 21 through bolts, so that the slider base 21 drives the upper shear blade 22 to reciprocate up and down. An arch machine base 23 is arranged at the lower part of the tool installation area 2. A lower shear blade 24 is installed on the upper part of the arch machine base 23 through bolts, and the lower shear blade 24 is fixed.

[0025] The track steel is a two-tooth track steel 4, including two teeth 41 formed on the upper part and a back surface 42 formed on the lower part. The figure shows a cross section of the track steel, and its extending direction is the direction facing the reader and the direction away from the reader.

[0026] The upper cutting edge 221 is formed at the lower edge of the upper shear blade 22, and the edge shape of the upper cutting edge 221 matches the teeth 41 of the two-tooth track steel 4. The lower cutting edge 241 is formed at the upper edge of the lower shear blade 24, and the lower cutting edge 241 includes a smooth plane or arc surface, and the edge shape of the lower cutting edge 241 matches the back surface 42 of the two-tooth track steel 4. In this way, the upper cutting edge 221 can be stuck on the teeth 41 of the two-tooth track steel 4, and the lower cutting edge 241 is pressed against the back surface 42 of the two-tooth track steel 4, and the upper cutting edge 221 and the lower cutting edge 241 jointly cut the two-tooth track steel.

[0027] like Figure 1The power zone 1 shown in the figure includes a motor 11, which drives the flywheel 12 to rotate through a V-belt 16. At the same time, the flywheel 12 is formed with teeth on its periphery, and a pinion 13 is meshed with the flywheel 12. A hanging wheel 14 is rotatably installed at the eccentric part of the pinion 13. The hanging wheel 14 is suspended with a slider base 21 through a hanging plate 15. Since the slider base 21 is restricted in the limiting groove of the limiting block 25 so that it can only move in the up and down directions, through the above arrangement, the motor 11 drives the slider base 21 to indirectly drive the upper shear blade 22 to reciprocate up and down, and when the upper shear blade 22 moves downward to the shearing position for the crawler steel 4, the travel speed will slow down, and the upper cutting edge 221 and the lower cutting edge 241 ( Figure 2 The shearing force on the track steel is increased, resulting in a more powerful and precise cut.

[0028] In this embodiment, the top width of the tooth-shaped recess 2211 is greater than the tooth top width of the tooth 41 of the two-tooth track steel 4, and the opening width of the tooth-shaped recess 2211 is greater than the tooth root width of the tooth 41 of the two-tooth track steel 4, so that a margin is left to facilitate the tooth-shaped recess 2211 to be stuck in the tooth 41.

[0029] In the present embodiment, further, the length difference between the top width of the tooth-shaped recess 2211 and the tooth top width of the tooth 41 of the two-tooth track steel 4 is smaller than the length difference between the opening width of the tooth-shaped recess 2211 and the tooth root width of the tooth 41 of the two-tooth track steel 4, that is, the opening of the tooth-shaped recess 2211 toward the tooth 41 of the track steel 4 is slightly trumpet-shaped, which is more conducive to the tooth-shaped recess 2211 being stuck in the tooth 41. Specifically, the top width of the tooth-shaped recess 2211 is 0.5 mm larger than the tooth top width of the tooth 41, and the opening width of the tooth-shaped recess 2211 is 0.75 mm larger than the tooth root width of the tooth 41.

[0030] like Figure 3 As shown, the slope 5 is disposed on the lower shear blade 24 , the slope 5 is connected to the lower cutting edge 241 , and the extension path of the slope 5 can also match the extension path of the lower cutting edge 241 .

[0031] like Figure 4 As shown, at least one side of the lower shear blade 24 is provided with a slope 5, and the slope 5 is an inclined surface. The front end of the track steel sinks and overlaps on the slope 5, and the front end of the track steel moves upward along the slope 5 and finally reaches the surface of the lower cutting edge 241.

[0032] The slope surface 5 is connected to the lower cutting edge 241 , the length of the slope surface 5 is consistent with the length of the lower cutting edge 241 , and the extending direction of the slope surface 5 is consistent with the extending direction of the lower cutting edge 241 .

[0033] The slope surface 5 is chamfered, and the slope surface 5 is inclined from top to bottom. The chamfer angle range of the slope surface 5 is 45°-89°, that is, the smaller the angle between the slope surface 5 and the lower cutting edge 241 , the easier it is for the track steel to move from the slope surface 5 to the lower cutting edge 241 .

[0034] The slope surface 5 is an arc surface, and the protruding part of the arc surface carries the front end of the crawler steel.

[0035] A smooth protective layer is provided on the slope surface 5. The hardness of the protective layer is stronger than that of the lower shear blade 24. When the crawler steel rubs on the protective layer, it will not directly rub against the slope surface 5, thereby protecting the slope surface 5. The protective layer can be replaced as needed.

[0036] like Figure 4 As shown, the side schematic diagram of the upper shear blade 22 and the lower shear blade 24 working in cooperation can better understand the shearing mechanism of the track steel cold shear blade device on the two-tooth track steel 4.

[0037] In this embodiment, see Figures 1 to 4 , especially Figure 2 A slide groove 231 is provided in the arch machine base 23, and the two-tooth track steel 4 slides in the slide groove 231 and enters between the upper shear blade 22 and the lower shear blade 24. At least one side of the lower cutting edge 241 (the side is the direction facing the reader or the direction facing away from the reader) is formed with a track steel sliding opening (not shown in the figure, the track steel sliding opening is provided in the slide groove 231), and the two-tooth track steel slides through the sliding opening to reach the surface of the lower cutting edge 241. Therefore, the lower cutting edge 241 is frequently subjected to sliding friction of the two-tooth track steel, so the lower cutting edge 241 is easily damaged and the service life of the cold shearing blade device is shortened.

[0038] In this embodiment, the teeth 41 of the two-tooth track steel 4 are slid upward and the back surface 42 is slid downward into the surface of the lower cutting edge 241. Since the back surface 42 usually includes a large-area flat surface or an arc-shaped surface, the wear of the two-tooth track steel on the lower cutting edge 241 is small. On the contrary, if the teeth 41 of the two-tooth track steel slide downward, the wear of the teeth 41 on the lower cutting edge 241 (the shape of the lower cutting edge 241 matches the teeth 41) is bound to be large. Therefore, the scheme of this embodiment makes the cold shear blade device more durable and can increase the service life of the cold shear blade device.

[0039] Furthermore, before the two-tooth track steel slides between the upper shear blade 22 and the lower shear blade 24, the high-temperature two-tooth track steel needs to pass through a descaling ring, which sprays high-pressure water to remove the oxide scale on the surface of the track steel. Therefore, setting the tooth 41 upward to receive descaling can better remove the oxide scale on the surface of the tooth 41, thereby improving product quality.

[0040] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An easy-feed steel cold shear blade device, comprising an upper shear blade (22) and a lower shear blade (24) that match each other, wherein the upper shear blade (22) is arranged above the lower shear blade (24), an upper cutting edge (221) is arranged on the upper shear blade (22), the upper cutting edge (221) is bent to form at least two tooth-shaped recesses (2211), the shape of the tooth-shaped recesses (2211) matches the teeth (41) of the track steel, and a lower cutting edge (241) is arranged on the lower shear blade (24), the shape of the lower cutting edge (241) matches the back side (42) of the track steel, and at least one side of the lower cutting edge (241) is also formed with an opening for the track steel to slide into, characterized in that: At least one side of the lower shearing blade (24) is provided with a slope surface (5).

2. The easy-feed steel cold shear blade device according to claim 1, characterized in that: The slope surface (5) is connected to the lower cutting edge (241), and the length of the slope surface (5) is consistent with the length of the lower cutting edge (241).

3. The easy-feed steel cold shear blade device according to claim 1, characterized in that: The slope surface (5) is chamfered.

4. The easy-feed steel cold shear blade device according to claim 3, characterized in that: The chamfer angle of the slope surface (5) ranges from 45° to 89°.

5. The easy-feed steel cold shear blade device according to claim 1, characterized in that: The slope surface (5) is a curved surface.

6. The easy-feed steel cold shear blade device according to claim 1, characterized in that: A smooth protective layer is provided on the slope surface (5).

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