A special cutting blade for flat steel of a reinforcing bar cutting machine

Abstract

The utility model provides a special cutting blade of flat steel of steel cutting-off machine relates to knife edge equipment technical field. Including the knife edge lower mounting seat, the top of knife edge lower mounting seat is installed the knife edge upper mounting seat, through setting up the knife edge lower mounting seat and the cutter body, through the cooperation of multiple installation inserting rod and positioning block to reinforce the upper fixed block and lower fixed block, thereby the secondary reinforcement treatment of knife edge lower mounting seat and knife edge upper mounting seat is assisted, has improved the installation stability of equipment, and the equipment is disassembled fast when being convenient for overhauling, the utility model will cut blade, cutting blade mounting seat and cutter body design as the split structure, through the fixing of installation screw rod and third positioning bolt, when cutting blade wears or needs to replace different specifications of blade mouth, need not to replace whole cutter head, only need to disassemble and replace cutting blade module, greatly reduced maintenance cost and downtime, the overall structure does not use electric equipment auxiliary operation, has saved the overall use installation cost.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a special cutting blade for flat steel in a rebar cutting machine. Background Technology

[0002] Rebar cutters are common equipment used in construction and manufacturing for cutting metal materials such as rebar and flat steel. Their core component is the cutting blade, whose performance directly determines cutting efficiency, cut quality, and equipment stability. Currently, most rebar cutters use fixed, integrated cutting blades.

[0003] In practical applications, this traditional blade technology has many drawbacks: The cutting edge has a fixed specification, which cannot adapt to the cutting needs of flat steel of different thicknesses or materials, resulting in poor versatility. After prolonged wear, the blades typically require replacement of the entire blade assembly, resulting in high maintenance costs, wasted resources, and the occupation of a significant amount of auxiliary equipment, thus increasing overall usage and installation costs and causing numerous inconveniences.

[0004] Therefore, this utility model provides a special cutting blade for flat steel in a rebar cutting machine. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a special cutting blade for flat steel rebar cutters that can be quickly replaced, has an adjustable length, and can adapt to different cutting needs, thereby improving the flexibility, economy, and service life of the equipment.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a special cutting blade for flat steel in a rebar cutting machine, including a blade mounting base. The top of the lower blade mounting base is equipped with an upper blade mounting base. An upper fixing block is fixedly connected to one side of the upper blade mounting base. A lower fixing block is installed at the bottom of the upper fixing block. One side of the lower fixing block is fixedly connected to the lower blade mounting base. A first limiting sleeve is fixedly connected to one side of both the lower blade mounting base and the upper blade mounting base. A blade body extending to the outside is installed inside the first limiting sleeve. One end of the blade body is fixedly connected to a counterweight rod extending into the mounting base below the blade and the mounting base above the blade. The other end of the blade body is fixedly connected to a cutting blade. A cutting blade mounting base is installed inside the cutting blade. A second limiting sleeve is fixedly connected inside the cutting blade and below the cutting blade mounting base. A mounting screw extending to the bottom of the cutting blade is threaded inside the second limiting sleeve. A third positioning bolt is installed on the top of the cutting blade to cooperate with the mounting screw and the cutting blade mounting base for positioning, so as to facilitate the replacement of the specifications of the mounting screw. The top of the first limiting sleeve is fixedly connected to a positioning seat, and the bottom of the positioning seat is slidably connected to a limiting rod extending to the inner wall of the cutter body. The top of the positioning seat is threadedly connected to a fourth positioning bolt that passes through the positioning seat and extends into the limiting rod. The fourth positioning bolt is used to position and install the limiting rod inserted into the cutter body and the positioning seat, and to limit the cutter body after length adjustment, thereby ensuring the stability of the equipment during subsequent operations.

[0007] In a preferred embodiment, an auxiliary clamping plate is installed on the top of the first limiting sleeve and below the positioning seat. The auxiliary clamping plate is internally threaded with a fifth positioning bolt. One bottom end of the fifth positioning bolt extends to the inner wall of the blade body, and the top end of the fifth positioning bolt is fixedly connected to the bottom of the positioning seat, thereby performing multi-level limiting treatment on the positioning seat, the auxiliary clamping plate and the blade body.

[0008] In a preferred embodiment, the top of the upper blade mounting base is provided with equidistant first positioning bolts for positioning with the lower blade mounting base. The top of the upper blade mounting base is provided with equidistant mounting holes for installation with the first positioning bolts. The mounting holes and the first positioning bolts work together to reinforce the lower blade mounting base and the upper blade mounting base, improving the installation stability of the equipment and facilitating quick disassembly of the equipment during maintenance. The bottom of the lower blade mounting base is provided with a positioning base plate. The bottom of the positioning base plate is threaded with a second positioning bolt extending to the inner wall of the bottom of the lower blade mounting base. The interior of the positioning base plate and both sides of the lower blade mounting base are provided with mounting grooves. The mounting grooves are all arc-shaped, and positioning rods can be installed inside the mounting grooves. The arc-shaped design facilitates installation with the placement surface when the equipment is placed.

[0009] In a preferred embodiment, two symmetrically distributed baffles are fixedly connected to the side of the first limiting sleeve away from the mounting base of the blade. The two baffles are located at the top of the blade body. A bottom limiting plate is fixedly connected to one side of the first limiting sleeve and below the blade body. The bottom and top of the blade body are limited by the two baffles and the bottom limiting plate, thereby improving the installation stability of the equipment.

[0010] In a preferred embodiment, the lower blade mounting seat has a first inner cavity for mounting a counterweight rod, the upper blade mounting seat has a second inner cavity for mounting a counterweight rod, and the cutting blade has a third inner cavity for mounting a second limiting sleeve. By having inner cavities in the lower and upper blade mounting seats to accommodate different specifications of counterweight rods, the overall stability of the equipment is improved.

[0011] In a preferred embodiment, a positioning block is installed on one side of both the lower and upper fixing blocks. Each positioning block is fixedly connected to an equidistantly distributed mounting rod extending into the lower and upper blade mounting seats. The mounting rods and positioning blocks work together to reinforce the upper and lower fixing blocks, thereby assisting in secondary reinforcement of the lower and upper blade mounting seats. This improves the installation stability of the equipment and facilitates quick disassembly during maintenance. The overall structure does not require electrical equipment for operation, saving on overall installation and usage costs.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: By setting up a lower blade mounting base, a positioning base plate, and a blade body, a third positioning bolt is installed on the top of the cutting edge during use to align with the mounting screw and the cutting edge mounting base. This facilitates the replacement of the mounting screw's specifications. The fourth positioning bolt is used to position the limiting rod inserted into the blade body and the positioning base, providing a limiting effect on the blade body after length adjustment, thus ensuring equipment stability during subsequent operations. The top end of the fifth positioning bolt is fixedly connected to the bottom of the positioning base, providing multi-level limiting for the positioning base, auxiliary clamp, and blade body. Two baffles and a bottom limiting plate limit the bottom and top of the blade body during installation, thereby improving the equipment's installation stability. The mounting holes and the first positioning bolt reinforce the lower blade mounting base and the upper blade mounting base, further enhancing the equipment's installation stability and facilitating quick disassembly during maintenance. The mounting slots all have an arc-shaped structure. The internal positioning rods, with their arc-shaped design, facilitate easy installation and placement of the equipment. Internal cavities in the lower and upper blade mounting seats allow for the replacement of counterweights of different specifications, improving overall equipment stability. Multiple mounting rods and positioning blocks reinforce the upper and lower fixing blocks, providing secondary reinforcement to the lower and upper blade mounting seats and enhancing installation stability. This also facilitates quick disassembly during maintenance. The cutting blade, blade mounting seat, and blade body are designed as detachable components, secured by mounting screws and a third positioning bolt. When the cutting blade wears or requires replacement with a different blade size, the entire blade head does not need to be replaced; only the cutting blade module needs to be disassembled and replaced, significantly reducing maintenance costs and downtime. The overall structure operates without electrical equipment, saving on overall installation and usage costs. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of a flat steel cutting blade for a rebar cutting machine provided by this utility model. Figure 1 ; Figure 2A schematic diagram of the overall structure of a flat steel cutting blade for a rebar cutting machine provided by this utility model. Figure 2 ; Figure 3 A schematic diagram of the overall structure of a flat steel cutting blade for a rebar cutting machine provided by this utility model. Figure 3 ; Figure 4 A schematic diagram of the internal structure of a flat steel cutting blade for a rebar cutting machine provided by this utility model; Figure 5 This utility model provides a special cutting blade for flat steel in a rebar cutting machine. Figure 2 Enlarged schematic diagram of the structure at point A in the diagram.

[0014] Legend: 1. Lower blade mounting base; 11. Upper blade mounting base; 12. Mounting hole; 13. First positioning bolt; 14. Counterweight rod; 15. Lower fixing block; 16. Upper fixing block; 17. Positioning block; 18. Mounting rod; 2. Positioning base plate; 21. Mounting groove; 22. First limiting sleeve; 23. Second positioning bolt; 3. Blade body; 31. Cutting blade; 32. Cutting blade mounting base; 33. Third positioning bolt; 34. Second limit sleeve; 35. Mounting screw; 4. Positioning seat; 41. Fourth positioning bolt; 42. Limiting rod; 43. Baffle; 44. Auxiliary clamping plate; 45. Fifth positioning bolt. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figures 1-5 As shown, this embodiment provides a technical solution: a special cutting blade for flat steel of a rebar cutting machine, including a lower blade mounting seat 1, an upper blade mounting seat 11 mounted on the top of the lower blade mounting seat 1, an upper fixing block 16 fixedly connected to one side of the upper blade mounting seat 11, a lower fixing block 15 mounted at the bottom of the upper fixing block 16, one side of the lower fixing block 15 fixedly connected to the lower blade mounting seat 1, and a first limiting sleeve 22 fixedly connected to one side of both the lower blade mounting seat 1 and the upper blade mounting seat 11, with a blade body 3 extending to the outside installed inside the first limiting sleeve 22; In this design, one end of the blade body 3 is fixedly connected to a counterweight rod 14 extending into the lower blade mounting seat 1 and the upper blade mounting seat 11. The other end of the blade body 3 is fixedly connected to a cutting blade 31. A cutting blade mounting seat 32 is installed inside the cutting blade 31. A second limiting sleeve 34 is fixedly connected inside the cutting blade 31 and below the cutting blade mounting seat 32. A mounting screw 35 extending to the bottom of the cutting blade 31 is threaded inside the second limiting sleeve 34. A third positioning bolt 33 is installed on the top of the cutting blade 31 to cooperate with the mounting screw 35 and the cutting blade mounting seat 32 for positioning, which facilitates the replacement of the specifications of the mounting screw 35. In this design, a positioning seat 4 is fixedly connected to the top of the first limiting sleeve 22. A limiting rod 42 extending to the inner wall of the blade body 3 is slidably connected to the bottom of the positioning seat 4. A fourth positioning bolt 41, which penetrates the positioning seat 4 and extends into the limiting rod 42, is threadedly connected to the top of the positioning seat 4. The fourth positioning bolt 41 is used to position and install the limiting rod 42 inserted into the blade body 3 and the positioning seat 4, and to limit the blade body 3 after length adjustment, thereby ensuring the stability of the equipment during subsequent operations. The cutting blade 31, the cutting blade mounting seat 32, and the blade body 3 are designed as a detachable structure and are fixed by the mounting screw 35 and the third positioning bolt 33. When the cutting blade is worn or needs to be replaced with a different size of cutting edge, it is not necessary to replace the entire blade head. Only the drinking parts need to be disassembled and replaced, which greatly reduces maintenance costs and downtime.

[0017] Going a step further, such as Figures 1-5 As shown: In this scheme, an auxiliary clamping plate 44 is installed on the top of the first limiting sleeve 22 and below the positioning seat 4. The auxiliary clamping plate 44 is internally threaded with a fifth positioning bolt 45. One bottom end of the fifth positioning bolt 45 extends to the inner wall of the blade body 3, and the top end of the fifth positioning bolt 45 is fixedly connected to the bottom of the positioning seat 4, thereby performing multi-level limiting treatment on the positioning seat 4, the auxiliary clamping plate 44 and the blade body 3.

[0018] In this design, two symmetrically distributed baffles 43 are fixedly connected to the side of the first limiting sleeve 22 away from the mounting base 1 under the blade. The two baffles 43 are located at the top of the blade body 3. A bottom limiting plate is fixedly connected to one side of the first limiting sleeve 22 and below the blade body 3. The bottom and top of the blade body 3 are limited by the two baffles 43 and the bottom limiting plate, thereby improving the installation stability of the equipment.

[0019] Going a step further, such as Figures 1-4As shown: In this solution, the top of the upper blade mounting seat 11 is provided with first positioning bolts 13 that are evenly distributed and used to position the lower blade mounting seat 1. The top of the upper blade mounting seat 11 is provided with mounting holes 12 that are evenly distributed and used to install the first positioning bolts 13. The mounting holes 12 and the first positioning bolts 13 work together to reinforce the lower blade mounting seat 1 and the upper blade mounting seat 11, which improves the installation stability of the equipment and facilitates quick disassembly of the equipment during maintenance.

[0020] In this design, a positioning base plate 2 is installed at the bottom of the under-blade mounting base 1. The bottom of the positioning base plate 2 is threaded with a second positioning bolt 23 extending to the inner wall of the bottom of the under-blade mounting base 1. The positioning base plate 2 has mounting grooves 21 on both sides of the under-blade mounting base 1. The mounting grooves 21 are all arc-shaped. A positioning rod can be installed inside the mounting grooves 21. The arc-shaped mounting grooves 21 on the positioning base plate 2 facilitate the quick positioning and installation of the special cutting blade on the machine body.

[0021] Going a step further, such as Figures 1-4 As shown, in this design, the lower blade mounting seat 1 has a first inner cavity for mounting the counterweight rod 14, the upper blade mounting seat 11 has a second inner cavity for mounting the counterweight rod 14, and the cutting blade 31 has a third inner cavity for mounting the second limiting sleeve 34. By using the inner cavities in the lower blade mounting seat 1 and the upper blade mounting seat 11 to replace counterweight rods 14 of different specifications, the overall stability of the equipment is improved. The rear end of the blade body 3 is equipped with a replaceable counterweight rod 14. By replacing the counterweight rod with different weights or specifications, the balance of the blade head in high-speed reciprocating motion can be dynamically adjusted, effectively reducing vibration and noise, improving the stability of the cutting process and the quality of the cut, while protecting the cutting machine body from damage caused by abnormal vibration.

[0022] In this design, positioning blocks 17 are installed on one side of both the lower fixing block 15 and the upper fixing block 16. One side of the positioning block 17 is fixedly connected with mounting rods 18 that are evenly distributed and extend into the lower mounting seat 1 and the upper mounting seat 11. The upper fixing block 16 and the lower fixing block 15 are reinforced by the cooperation of multiple mounting rods 18 and positioning blocks 17, thereby assisting in the secondary reinforcement of the lower mounting seat 1 and the upper mounting seat 11, improving the installation stability of the equipment, and facilitating quick disassembly of the equipment during maintenance. The overall structure does not use electrical equipment for operation, saving overall usage and installation costs.

[0023] Working principle: like Figures 1-5 As shown: This utility model designs the cutting blade 31, the cutting blade mounting base 32, and the blade body 3 as a detachable structure, which is fixed by the mounting screw 35 and the third positioning bolt 33. When the cutting blade is worn or needs to be replaced with a different specification of cutting edge, it is not necessary to replace the entire blade head. Only the corresponding parts need to be disassembled and replaced, which greatly reduces maintenance costs and downtime. The blade body 3 can slide telescopically through the first limiting sleeve 22 and is locked at the required length by the limiting insert 42 and the fourth positioning bolt 41. This allows a single cutting blade to adapt to the processing needs of various cutting strokes and flat steel of different sizes, improving the versatility and operational flexibility of the equipment. The rear end of the blade body 3 is equipped with a replaceable counterweight rod 14. By replacing the counterweight rod with different weights or specifications, the balance of the blade head in high-speed reciprocating motion can be dynamically adjusted, effectively reducing vibration and noise, improving the stability of the cutting process and the quality of the cut, while protecting the cutting machine body from damage caused by abnormal vibration. The arc-shaped mounting groove 21 on the positioning base plate 2 facilitates the quick positioning and installation of this special cutting blade on the machine body.

[0024] The entire assembly is fixed to the power output end of the rebar cutter via the positioning base plate 2 and its mounting groove 21. It reciprocates linearly with the slider. When the power mechanism drives the upper mounting seat 11 and lower mounting seat 1 of the blade towards the flat steel, the cutting blade 31 fixed to the front end of the blade body 3 and the fixed bottom blade (not shown in the figure) form a shearing action, cutting the flat steel. Loosening the fourth positioning bolt 41 allows the blade body 3 to be pulled or pushed forward, changing the extension of the cutting blade 31 to adapt to different installation spaces or cutting strokes. After adjustment, tighten the fourth positioning bolt 41. The limiting rod 42 is tightly inserted into the corresponding hole of the blade body 3 to achieve locking. The fifth positioning bolt 45 and the auxiliary clamping plate 44 play an auxiliary locking and anti-loosening role. According to the length and weight of the selected blade body 3 and cutting blade 31, different specifications of counterweight rods 14 can be selected and installed in the inner cavity of the rear end of the blade body 3 to achieve dynamic balance of moving parts and reduce vibration. When the cutting blade 31 is worn or needs to be replaced, the third positioning bolt 33 can be unscrewed to remove the cutting blade 31, mounting base 32, second limiting sleeve 34 and other components from the blade body 3 for quick replacement.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A special cutting blade for flat steel in a rebar cutting machine, comprising a blade mounting base (1), characterized in that, The top of the blade mounting base (1) is equipped with a blade mounting base (11), and an upper fixing block (16) is fixedly connected to one side of the blade mounting base (11). A lower fixing block (15) is installed at the bottom of the upper fixing block (16). One side of the lower fixing block (15) is fixedly connected to the blade mounting base (1). A first limiting sleeve (22) is fixedly connected to one side of both the blade mounting base (1) and the blade mounting base (11). A blade body (3) extending to the outside is installed inside the first limiting sleeve (22). One end of the blade body (3) is fixedly connected to a counterweight rod (14) extending into the lower blade mounting seat (1) and the upper blade mounting seat (11). The other end of the blade body (3) is fixedly connected to a cutting blade (31). A cutting blade mounting seat (32) is installed inside the cutting blade (31). A second limiting sleeve (34) is fixedly connected inside the cutting blade (31) and below the cutting blade mounting seat (32). A mounting screw (35) extending to the bottom of the cutting blade (31) is threaded inside the second limiting sleeve (34). A third positioning bolt (33) is installed on the top of the cutting blade (31) to cooperate with the mounting screw (35) and the cutting blade mounting seat (32) for positioning. The top of the first limiting sleeve (22) is fixedly connected to a positioning seat (4), the bottom of the positioning seat (4) is slidably connected to a limiting rod (42) extending to the inner wall of the blade body (3), and the top of the positioning seat (4) is threadedly connected to a fourth positioning bolt (41) that penetrates the positioning seat (4) and extends into the limiting rod (42).

2. The flat steel cutting blade of the rebar cutting machine according to claim 1, characterized in that: An auxiliary clamping plate (44) is installed on the top of the first limiting sleeve (22) and below the positioning seat (4). The auxiliary clamping plate (44) is internally threaded with a fifth positioning bolt (45). One bottom end of the fifth positioning bolt (45) extends to the inner wall of the blade body (3), and one top end of the fifth positioning bolt (45) is fixedly connected to the bottom of the positioning seat (4).

3. The flat steel cutting blade of the rebar cutting machine according to claim 1, characterized in that: The top of the upper mounting base (11) of the blade is provided with first positioning bolts (13) that are evenly distributed and used to position the lower mounting base (1) of the blade. The top of the upper mounting base (11) of the blade is provided with mounting holes (12) that are evenly distributed and used to install the first positioning bolts (13).

4. The flat steel cutting blade of the rebar cutting machine according to claim 3, characterized in that: The bottom of the blade mounting base (1) is equipped with a positioning base plate (2), and the bottom of the positioning base plate (2) is threaded with a second positioning bolt (23) extending to the inner wall of the bottom of the blade mounting base (1). The positioning base plate (2) is provided with mounting grooves (21) on both sides of the blade mounting base (1).

5. The flat steel cutting blade of the rebar cutting machine according to claim 4, characterized in that: Two symmetrically distributed baffles (43) are fixedly connected to the side of the first limiting sleeve (22) away from the blade mounting base (1). The two baffles (43) are located at the top of the blade body (3). A bottom limiting plate is fixedly connected to one side of the first limiting sleeve (22) and below the blade body (3).

6. The flat steel cutting blade of the rebar cutting machine according to claim 1, characterized in that: The lower blade mounting seat (1) has a first inner cavity for mounting with the counterweight rod (14), the upper blade mounting seat (11) has a second inner cavity for mounting with the counterweight rod (14), and the cutting blade (31) has a third inner cavity for mounting with the second limiting sleeve (34).

7. The flat steel cutting blade of the rebar cutting machine according to claim 6, characterized in that: A positioning block (17) is installed on one side of both the lower fixing block (15) and the upper fixing block (16). The positioning block (17) is fixedly connected to one side of the positioning block (17) with equidistantly distributed mounting rods (18) extending into the lower mounting seat (1) and the upper mounting seat (11) of the blade.

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