Disk saw without burrs and flashes

Abstract

The invention discloses a disk saw without burrs and flashes, and relates to the technical field of sawing machines. The disk saw without burrs and flashes comprises a base. The saw cutting assembly comprises an electric sliding table, a protective cover is arranged above the base and installed on the surface of the electric sliding table, a plurality of rolling wheels are installed on the left side and the right side of the inner wall of the protective cover, and a fixing frame is installed at the upper end of the protective cover. A first saw frame is fixedly connected to the upper end of the fixing frame, and an upper sawing machine is installed at the upper end of the first saw frame. A second saw frame is fixedly connected to the upper end of the fixing frame, a lower saw cutting machine is installed at the upper end of the second saw frame, and through the step-by-step saw cutting structure that the upper saw cutting machine conducts primary saw cutting on a reserved residual section and the lower saw cutting machine conducts secondary saw cutting on the cooled residual section, the metal softening or melting phenomenon caused by high temperature in traditional saw cutting is avoided; burrs and flashes on the section of the steel material are fundamentally eliminated, it is guaranteed that the section is flat and free of steps, and the shape precision and the surface quality of the end of the sawn steel material are effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sawing machines, in particular to a disc sawing machine without burrs and flash. BACKGROUND

[0002] In the field of mechanical processing and metal processing, the metal cutting process has a decisive influence on the subsequent production process. For example, for large steel bars with a diameter of more than 2000mm, due to the limitations of material properties, traditional shearing process cannot achieve accurate cutting, and sawing becomes a necessary means for processing such workpieces.

[0003] During the sawing process, the problem of burrs and flash on the metal workpiece cross section has existed for a long time, which seriously restricts product quality and processing efficiency. The main mechanism is that during the high-speed cutting process of the saw blade and the metal workpiece, the local metal temperature rises sharply due to friction, resulting in softening or even melting. At the stage of cutting off the material, the mechanical pressure applied by the saw blade causes plastic deformation of the softened metal, forming a flash structure extending along the cutting direction; and the molten metal forms irregular burrs on the edge of the workpiece after cooling and solidification, which seriously damages the cross section integrity and surface quality.

[0004] The above problem is particularly prominent in the hot-rolled bar cutting process. In the automatic production line of large bars, there are a large number of burrs and flash on the surface of the workpiece after hot sawing. In order to meet the product quality standards, additional secondary processing procedures such as flame cleaning or grinding are required. This processing method not only significantly increases the production cost and prolongs the production cycle, but also easily introduces dimensional errors in the secondary processing process, which adversely affects the production schedule and product precision control.

[0005] The existing sawing equipment generally has the problem of heat concentration. Continuous cutting leads to heat accumulation in the sawing area, which aggravates the softening and melting of metal materials, making it difficult to effectively control burrs and flash. Due to the inherent defects in the structure design and heat dissipation mechanism of traditional sawing machines, efficient cutting heat management cannot be achieved, making it difficult to fundamentally solve this technical problem. Developing a new type of burr-free and flash-free sawing equipment has important practical significance and application value for improving the production efficiency of the metal processing industry, reducing manufacturing costs, and ensuring product quality. Therefore, a new solution is proposed. SUMMARY

[0006] The present application aims to at least solve one of the technical problems existing in the prior art, and provides a disc sawing machine without burrs and flash, which can solve the problem of heat accumulation in the sawing area caused by continuous cutting, which aggravates the softening and melting of metal materials, making it difficult to effectively control burrs and flash.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a burr-free circular saw machine, comprising a base; The sawing assembly is mounted on the upper part of the base. The sawing assembly includes an electric slide table, which is fixedly mounted on the upper part of the base. The electric slide table includes a drive motor, a slide frame, a ball screw, and a slide table. A protective cover is installed on the top of the base. The protective cover is installed on the surface of the electric slide. Multiple rollers are installed on both the left and right sides of the inner wall of the protective cover. A fixing frame is installed on the top of the protective cover. The upper end of the fixed frame is fixedly connected to the first saw frame, and the upper sawing machine is installed on the upper end of the first saw frame; A second saw frame is fixedly connected to the upper end of the fixed frame, and a lower sawing machine is installed on the upper end of the second saw frame.

[0008] Preferably, both the upper and lower sawing machines consist of a saw blade motor and a saw blade. The first saw frame is L-shaped, and the saw blades of the upper and lower sawing machines are on the same plane, with the center positions of the saw blades of the upper and lower sawing machines offset.

[0009] Preferably, ribs are fixedly connected to the surfaces of both the first saw frame and the second saw frame.

[0010] Preferably, a first fixed bracket is fixedly connected to the upper end of the base, and a first hydraulic rod is fixedly connected inside the upper end of the first fixed bracket; A pressure plate is fixedly connected to the output end of the first hydraulic rod, and two first guide rods are fixedly connected to the upper end of the pressure plate.

[0011] Preferably, a first fixed bracket is fixedly connected to the upper end of the base, and a first hydraulic rod is fixedly connected inside the upper end of the first fixed bracket; A pressure plate is fixedly connected to the output end of the first hydraulic rod, and two first guide rods are fixedly connected to the upper end of the pressure plate.

[0012] Preferably, the upper end of the base is provided with a support frame, and two connecting plates are fixedly connected to the inner side of the support frame; A second hydraulic rod is fixedly connected to the upper end of the base, and the output end of the second hydraulic rod is fixedly connected to the connecting plate on the lower side. Four second guide rods are fixedly connected to the upper end of the base. All four second guide rods are slidably connected to two connecting plates, and the upper ends of the four second guide rods are fixedly connected to a fixing plate.

[0013] Preferably, a steel roller conveyor is fixedly connected to the upper end of the support frame, and multiple support blocks are fixedly connected to the upper surface of the steel roller conveyor.

[0014] Preferably, the support frame, the second hydraulic rod, the connecting plate, the second guide rod, the fixing plate, the steel roller conveyor, and the support block are each arranged in two sets on the left and right sides of the base.

[0015] Preferably, the lower ends of the two steel roller conveyors are fixedly connected with reinforcing ribs.

[0016] Preferably, a power distribution box is installed at the upper end of the fixing frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This burr-free circular saw, through its step-by-step sawing structure—with the upper sawing machine initially cutting the remaining section and the lower sawing machine cutting the remaining section after cooling—avoids the softening or melting of metal caused by high temperatures in traditional sawing, fundamentally eliminating burrs and flash on the steel cross-section. Simultaneously, with the upper and lower saw blades on the same plane and the red-hot steel fixed in place by the pressure plate without displacement, the two sawing paths completely overlap, ensuring a flat, stepless cross-section and effectively guaranteeing the shape accuracy and surface quality of the steel end after sawing.

[0018] 2. This burr-free circular saw eliminates burrs and flash from the cut steel, eliminating the need for secondary processing steps such as flame cleaning or grinding. This not only reduces equipment investment and labor costs but also shortens the production cycle and significantly improves overall processing efficiency. It is particularly suitable for the continuous operation requirements of large-scale automated bar production lines.

[0019] 3. This burr-free circular saw does not directly cut the steel material with the upper saw blade, avoiding the sticking and dulling caused by the high temperature during complete cutting; the lower saw blade has a small cutting volume and the workpiece temperature is low, which also eliminates the sticking problem; the synergistic design of the two saw blades greatly reduces the wear and tear of the saw blades, extends the service life of the saw blades, and reduces the cost of equipment maintenance and consumable replacement. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of a burr-free circular saw machine according to the present invention. Figure 2 This is a schematic diagram of the fixing frame of the present invention; Figure 3 This is a schematic diagram of the protective cover of the present invention; Figure 4 This is a schematic diagram of the first fixing bracket of the present invention; Figure 5 This is a schematic diagram of the support frame of the present invention; Figure 6 This is a schematic diagram of the steel roller conveyor of the present invention.

[0021] Reference numerals: 1. Base; 2. Electric slide table; 3. Protective cover; 4. Roller; 5. Fixing frame; 6. First saw frame; 7. Upper sawing machine; 8. Second saw frame; 9. Lower sawing machine; 10. Distribution box; 11. First fixed bracket; 12. First hydraulic rod; 13. Pressure plate; 14. First guide rod; 15. Support frame; 16. Second hydraulic rod; 17. Connecting plate; 18. Second guide rod; 19. Fixing plate; 20. Steel roller conveyor; 21. Support block. Detailed Implementation

[0022] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0023] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0024] In the description of this invention, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0026] Please see Figures 1-6 The present invention provides a technical solution: a burr-free circular saw. When the burr-free circular saw is working, the power distribution box 10 supplies power to the upper sawing machine 7 and the lower sawing machine 9 to ensure that their saw blade motors can drive the saw blades to rotate normally. At the same time, hydraulic power is provided to the first hydraulic rod 12 and the second hydraulic rod 16 through external hydraulic equipment to ensure the operation of related components.

[0027] In the initial stage of operation, the steel material to be sawed is placed on the steel roller conveyor 20, and multiple support blocks 21 provide stable support for the steel material. Depending on the specifications of the steel material, the second hydraulic rod 16 can extend and retract to move the connecting plate 17 up and down along the second guide rod 18, thereby adjusting the height of the support frame 15 and the steel roller conveyor 20, so that the steel material is in a suitable sawing position. The fixing plate 19 fixes and limits the second guide rod 18 to ensure the stability of the adjustment process.

[0028] At this time, the two sets of first hydraulic rods 12 extend synchronously, pushing the pressure plate 13 to move downward. The first guide rod 14 moves together with the pressure plate 13, providing guidance for the movement of the pressure plate 13 and ensuring that it presses down smoothly until the pressure plate 13 tightly presses the steel material, preventing the steel material from shifting due to force during the entire sawing process and ensuring the consistency of the subsequent sawing trajectory.

[0029] According to the specifications of the red steel and the sawing requirements, the second hydraulic rod 16 extends and retracts, causing the connecting plate 17 to slide up and down along the second guide rod 18, thereby driving the support frame 15 and the steel roller conveyor 20 to rise and fall synchronously. This process can precisely adjust the distance between the bottom of the red steel and the lowest point of the saw blade of the upper sawing machine 7, thereby controlling the initial sawing depth of the upper sawing machine 7. The fixing plate 19 plays a fixing and limiting role on the second guide rod 18 to ensure the stability of the adjustment process. The red steel is placed on the support block 21 of the steel roller conveyor 20. The support block 21 enhances the stability of the red steel placement, and the reinforcing ribs at the lower end of the steel roller conveyor 20 further enhance the structural load-bearing capacity.

[0030] Subsequently, the electric slide 2 starts to work. Its drive motor drives the ball screw to rotate, causing the slide on the slide to move the protective cover 3 and the fixed frame 5, the first saw frame 6, the upper sawing machine 7, the second saw frame 8, the lower sawing machine 9 and other components installed on the protective cover 3 along the set direction. The multiple rollers 4 on the inner wall of the protective cover 3 can reduce friction during the movement and ensure smooth movement.

[0031] The saw blades of the upper sawing machine 7 and the lower sawing machine 9 rotate at high speed under the drive of the saw blade motor, and the two rotate in opposite directions. Since the first saw frame 6 is "L" shaped, and the center positions of the saw blades of the upper sawing machine 7 and the lower sawing machine 9 are staggered, and the saw blades of the two are on the same plane, the saw blade of the high-speed rotating upper sawing machine 7 first contacts the steel material and begins the sawing operation under the drive of the electric slide table 2. Because the height of the steel roller 20 is adjusted, the saw blade of the upper sawing machine 7 will not completely cut the steel material during sawing, leaving a 5-10mm thick residual joint.

[0032] As the electric slide table 2 continues to drive the sawing assembly to move, the upper sawing machine 7 completes the initial sawing of the steel material at the current position and continues to saw the subsequent steel material. The residual joints left after being sawed by the upper sawing machine 7 are quickly cooled during the movement of the sawing assembly due to their small cross-section and good heat dissipation. When the saw blade of the lower sawing machine 9 comes into contact with these residual joints, the temperature of the residual parts has decreased, and the hardness and deformation resistance have increased. The saw blade of the lower sawing machine 9 saws the residual parts. Because the sawing amount is small and the temperature of the residual parts is low, there will be no softening or melting of the metal due to high temperature, thus avoiding the generation of burrs and flash.

[0033] In addition, the ribs fixedly connected to the surfaces of the first saw frame 6 and the second saw frame 8 enhance the structural strength of the saw frame and ensure the stability of the sawing process; the reinforcing ribs at the lower ends of the two steel roller conveyors 20 improve the load-bearing capacity of the roller conveyors and ensure the overall reliable operation of the equipment; throughout the entire working process, the components work together to achieve burr-free and flash-free sawing of the steel material.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A burr-free circular saw, characterized in that: Including the base (1); The sawing assembly is installed on the upper end of the base (1). The sawing assembly includes an electric slide (2). The electric slide (2) is fixedly installed on the upper end of the base (1). The electric slide (2) includes a drive motor, a slide frame, a ball screw, and a slide table. A protective cover (3) is provided above the base (1). The protective cover (3) is installed on the slide surface of the electric slide (2). Multiple rollers (4) are installed on both the left and right sides of the inner wall of the protective cover (3). A fixing frame (5) is installed at the upper end of the protective cover (3). The upper end of the fixed frame (5) is fixedly connected to the first saw frame (6), and the upper sawing machine (7) is installed on the upper end of the first saw frame (6). The upper end of the fixed frame (5) is fixedly connected to the second saw frame (8), and the upper end of the second saw frame (8) is equipped with a lower sawing machine (9).

2. The burr-free and flash-free circular saw machine according to claim 1, characterized in that: The upper sawing machine (7) and the lower sawing machine (9) are both composed of a saw blade motor and a saw blade. The first saw frame (6) is L-shaped. The saw blades of the upper sawing machine (7) and the lower sawing machine (9) are on the same plane, and the center positions of the saw blades of the upper sawing machine (7) and the lower sawing machine (9) are staggered.

3. A burr-free and flash-free circular saw machine according to claim 1, characterized in that: Ribs are fixedly connected to the surfaces of the first saw frame (6) and the second saw frame (8).

4. A burr-free circular saw machine according to claim 1, characterized in that: The upper end of the base (1) is fixedly connected to a first fixed bracket (11), and the upper end of the first fixed bracket (11) is fixedly connected to a first hydraulic rod (12). The output end of the first hydraulic rod (12) is fixedly connected to a pressure plate (13), and the upper end of the pressure plate (13) is fixedly connected to two first guide rods (14).

5. A burr-free circular saw machine according to claim 1, characterized in that: The first fixed bracket (11), the first hydraulic rod (12), the pressure plate (13) and the first guide rod (14) are each arranged in two sets on the left and right sides of the base (1).

6. A burr-free circular saw machine according to claim 1, characterized in that: The upper end of the base (1) is provided with a support frame (15), and two connecting plates (17) are fixedly connected to the inner side of the support frame (15). The upper end of the base (1) is fixedly connected to a second hydraulic rod (16), the output end of the second hydraulic rod (16) is fixedly connected to the connecting plate (17) on the lower side, and the upper end of the base (1) is fixedly connected to four second guide rods (18). All four second guide rods (18) are slidably connected to two connecting plates (17), and the upper ends of the four second guide rods (18) are fixedly connected to a fixing plate (19).

7. A burr-free circular saw machine according to claim 1, characterized in that: The upper end of the support frame (15) is fixedly connected to a steel roller conveyor (20), and a plurality of support blocks (21) are fixedly connected to the upper surface of the steel roller conveyor (20).

8. A burr-free circular saw machine according to claim 1, characterized in that: The number of the support frame (15), the second hydraulic rod (16), the connecting plate (17), the second guide rod (18), the fixing plate (19), the steel roller (20) and the support block (21) are all arranged in two sets on the left and right sides of the base (1).

9. A burr-free circular saw machine according to claim 1, characterized in that: The lower ends of the two steel roller conveyors (20) are fixedly connected with reinforcing ribs.

10. A burr-free circular saw machine according to claim 1, characterized in that: A distribution box (10) is installed on the upper end of the fixing frame (5).

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