Metal working sawing apparatus

Abstract

The present application relates to the field of metal sawing processing, and particularly relates to a metal processing sawing device. The metal processing sawing device comprises a sawing system composed of a base, a lifting unit, a saw belt driving unit, a correction unit and a control box; further comprising a closed shell fixed on the correction unit, the inside of the shell is a flushing cavity, opposite sides of the flushing cavity are provided with through ports, one side is an inlet port and the other side is an outlet port, so that the saw belt can pass through the shell and the exhaust member with a floating amount is connected to the exhaust port; at least two sets of flushing assemblies are arranged on the top of the shell. In the metal processing sawing device, the cutting fluid is introduced into the spray head by a pump and sprayed out, the high-pressure cutting fluid directly acts on the surface of the saw belt to flush away the metal chips attached to the surface, this cleaning process not only does not cause damage to the saw belt, but also can further cool the saw belt to improve the service life of the saw belt.

Description

Technical Field

[0001] This invention relates to the field of metal sawing, and more particularly to a metal sawing device. Background Technology

[0002] A band saw, especially a metal band saw, is a general-purpose machine tool that uses a closed, annular band saw blade (saw band) as a cutting tool to cut metal profiles (such as bars, pipes, and steel sections) in a straight line. Its basic working principle is as follows: a motor drives a drive wheel, which in turn drives a flexible steel band (saw band) with serrations on one side in a unidirectional continuous cyclic motion; the feed of the saw frame or worktable is controlled by a hydraulic or servo system, causing the high-speed saw teeth to cut off the material tooth by tooth, thereby achieving workpiece separation.

[0003] During the sawing process, the high-speed saw blade inevitably accumulates a large amount of hot, sharp metal chips. If these residual chips are not removed in time, they will re-enter the cutting area with the saw blade. This will increase the friction between the saw blade and the workpiece, not only reducing the cut quality and increasing cutting energy consumption, but also causing the saw blade to overheat abnormally and accelerating its tooth wear.

[0004] In existing technology, a metal disc brush structure is added to the equipment. This metal disc brush structure is located on one side of the cutting area and has an independent drive source. During use, a motor drives the disc brush to rotate at high speed, and its bristles directly contact the saw blade surface to remove chips through mechanical scraping. However, this creates a new problem: High-intensity friction between the metal wire and the saw blade can also cause scratches on the surface of the saw blade. At the same time, the friction between the two will generate additional heat, which will also affect the service life of the saw blade. During the cleaning process of the disc brush on the saw band, some debris sticks to the brush bristles. As the disc brush rotates at high speed, it throws the debris into the equipment, making subsequent cleaning difficult.

[0005] Therefore, it is necessary to provide a new metal processing sawing equipment to solve the above-mentioned technical problems. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a metal processing sawing device.

[0007] The metal processing sawing equipment provided by the present invention includes a sawing system consisting of a base, a lifting unit, a saw belt transmission unit, a correction unit and a control box; It also includes a closed housing fixed to the correction unit. The interior of the housing is a flushing chamber with through openings on both sides. One side is the inlet and the other side is the outlet so that the saw blade can pass through the housing. The bottom surface of the housing has a drain port for discharging cutting fluid and metal chips. The drain port is connected to a drain component with a floating capacity. At least two flushing assemblies are provided on the top of the housing, with the two sets of flushing assemblies located on both sides of the saw blade, for spraying high-pressure cutting fluid onto the saw blade to flush away the metal chips attached to the saw blade. A drive roller is also provided on the side corresponding to the outlet of the outer shell. The drive roller contacts the side of the saw belt and has friction, so that the saw belt drives the drive roller to rotate circumferentially during the conveying process. An eccentric drive component is provided at one end of the drive roller. The eccentric drive component is connected to the sewage discharge component by a steel cable so that the rotating drive roller can drive the sewage discharge component to generate continuous vibration, which promotes the discharge of metal chips. The base is also provided with a waste collection tank, and the output end of the sewage discharge component is located inside the waste collection tank.

[0008] Preferably, the correction unit consists of two symmetrically arranged arm plates, each arm plate having a groove for the saw blade to pass through, so that the cutting teeth of the saw blade between the two arm plates are perpendicular to the workpiece placement plane. The outer casing is fixed to the arm plate by the first mounting bracket. Preferably, the inner side of the outer casing has an integrally connected mounting plate. The mounting plate is U-shaped and connected to the through opening. Two symmetrically arranged positioning rollers are rotatably connected to the mounting plate. There is a gap between the two positioning rollers for the saw blade to pass through, and the gap is slightly larger than the width of the saw blade.

[0009] Preferably, the flushing assembly includes an interface fixed to the top of the housing and a nozzle fixed to the top of the housing and communicating with the interface; The interface is connected to an external pump or pipeline for delivering cutting fluid.

[0010] Preferably, the nozzle is fan-shaped, its output port is a flat slit, and its spray direction is at an acute angle to the plane of the saw band and opposite to the running direction of the saw band.

[0011] Preferably, the bottom of the housing is sloped, and the drain outlet is located at the lowest point of the slope to facilitate the entry of cutting fluid and metal shavings into the drain outlet.

[0012] Preferably, a second mounting bracket is fixed to the outside of the housing, and the transmission roller is rotatably mounted on the second mounting bracket via a shaft. The circumferential surface of the transmission roller has an elastic layer to achieve elastic contact with the saw blade.

[0013] Preferably, the eccentric transmission component includes a rotating arm vertically fixed to one end of the shaft, a locating pin fixed to the other end of the rotating arm, and a rotating ring rotatably connected to the locating pin. One end of the steel cable is fixed to the circumference of the rotating ring, and the other end is fixed to a retaining ring.

[0014] Preferably, the sewage discharge component is a sewage pipe, which is three-sectioned, including a rigid section in the middle and elastic sections at both ends; The fixing ring is fitted onto the rigid section of the sewage pipe, while the elastic sections at both ends are fixed to the sewage outlet of the outer shell and the inside of the waste collection tank, respectively.

[0015] Compared with related technologies, the metal processing sawing equipment provided by the present invention has the following beneficial effects: The saw blade is enclosed by an open shell, forming a closed flushing chamber inside. The cutting fluid is then pumped into the nozzle and sprayed out. The high-pressure cutting fluid acts directly on the surface of the saw blade to flush away the metal chips attached to it. This cleaning process not only does not damage the saw blade, but also further cools it down to extend its service life. A drain pipe is installed at the drain port at the bottom of the casing to direct the cutting fluid and metal shavings into the waste collection tank, reducing the difficulty of subsequent cleaning. During the conveying process, the saw blade comes into direct contact with the drive roller. An eccentric drive structure at one end of the drive roller rotates synchronously. The eccentric drive structure and the sewage pipe are connected by a steel cable, which generates a reciprocating tension on the sewage pipe. The sewage pipe itself has a certain amount of floating, and under this tension, it can vibrate to promote the discharge of dirt and prevent blockages from occurring inside. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the metal processing sawing equipment provided by the present invention; Figure 2 As shown in this invention Figure 1 A partial structural diagram; Figure 3 This is a schematic diagram of the internal structure of the outer shell shown in this invention; Figure 4 This is a schematic diagram of the structure of the transmission roller and the sewage pipe connected in this invention; Figure 5 As shown in this invention Figure 4 A partial structural diagram; Figure 6 As shown in this invention Figure 5 Enlarged structural diagram at point A.

[0017] The following are the labels in the diagram: 1. Base; 2. Waste collection trough; 3. Lifting unit; 4. Saw belt drive unit; 5. Saw belt; 6. Correction unit; 7. First mounting frame; 8. Outer shell; 9. Mounting plate; 10. Positioning roller; 11. Interface; 12. Nozzle; 13. Drain outlet; 14. Drain pipe; 15. Second mounting frame; 16. Drive roller; 17. Rotating arm; 18. Positioning pin; 19. Rotary ring; 20. Steel cable; 21. Fixing ring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0019] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0020] Please see Figures 1 to 6 This invention provides a metal processing sawing device, including a sawing system. The sawing system consists of a base 1, a lifting unit 3, a saw belt drive unit 4, a correction unit 6, and a control box. The base 1 is also provided with a platform for placing workpieces and a fixture for fixing workpieces, as well as a waste collection tank 2 for collecting waste (the structure and operating principle of this sawing system are existing technologies and will not be described in detail here).

[0021] A closed outer shell 8 is also fixed to the correction unit 6. Specifically, the first mounting bracket 7 is bolted to the side of the arm plate in the correction unit 6, and the outer shell 8 is bolted to the first mounting bracket 7 to ensure stability. The interior of the outer shell 8 is a flushing chamber, with through-holes on opposite sides, one side being the inlet and the other the outlet, allowing the saw blade 5 to pass through. The inner side of the outer shell 8 has an integrally connected mounting plate 9, which is U-shaped and communicates with the through-holes. Two symmetrically arranged positioning rollers 10 are rotatably connected to the mounting plate 9, with a gap between the two positioning rollers 10 for the saw blade 5 to pass through, the gap being slightly larger than the width of the saw blade 5. This further restricts the saw blade 5, ensuring it remains vertical within the flushing chamber and preventing skewing, thus making the conveying process more stable.

[0022] A flushing assembly is also provided on the outer casing 8. At least two sets of flushing assemblies are provided, arranged symmetrically. That is, two sets of flushing assemblies correspond to both sides of the saw blade 5 to achieve comprehensive cleaning of the saw blade 5. The flushing assembly includes an interface 11 fixed to the top of the outer casing 8 and a nozzle 12 fixed to the top inside the outer casing 8 and connected to the interface 11. The interface 11 is used to connect an external pump or pipe for delivering cutting fluid, and the input end of the pump is connected to a container holding the cutting fluid to form a complete cooling circuit, thereby guiding the cutting fluid into the nozzle 12. The output port of the nozzle 12 is a flat slit, and its spray direction forms an acute angle with the plane of the saw blade 5 and is opposite to the running direction of the saw blade 5. That is, the sprayed high-pressure cutting fluid can thoroughly flush the saw blade 5 to remove metal shavings adhering to it. Compared to traditional disc brush cleaning, this cleaning method causes almost no damage to the saw blade 5, and the cutting fluid can further cool the saw blade 5 to extend its service life.

[0023] The inner bottom surface of the outer casing 8 is sloped, and a drain port 13 is provided at the lowest point of the slope to allow for better discharge of flushed metal shavings and cutting fluid. A drain component is connected to the outside of the drain port 13 to discharge the metal shavings and cutting fluid into the waste collection tank 2. This drain component is a drain pipe 14, which consists of three sections: a rigid section (preferably stainless steel or PVC) in the middle and elastic sections at both ends. One elastic section (inlet port, preferably a rubber tube) is flanged to the drain port 13, while the other elastic section (outlet port, preferably a spirally wound corrugated metal pipe) can be fixed to the inner wall of the waste collection tank 2 with clamps, thereby directing the metal shavings and cutting fluid into the waste collection tank 2.

[0024] Furthermore, in this design, the rigid section has a certain amount of floating. The elastic section installed inside the waste collection trough 2 should have axial expansion and contraction. That is, when the saw belt drive unit 4 moves up and down, the entire sewage pipe 14 can produce a corresponding expansion and contraction adjustment to prevent the sewage pipe 14 from being pulled, deformed, or falling off. The rigid section itself is relatively heavy. If it is necessary to further improve its stability, the section can be fixed to the outer shell 8 or the arm plate through an elastic support structure (spring hanger). This can further improve its stability without affecting its own vibration.

[0025] A second mounting bracket 15 is bolted to one side of the outer casing 8 (corresponding to the outlet). A rotatable drive roller 16 is mounted on the second mounting bracket 15 via a shaft. The circumferential surface of the drive roller 16 can contact the side of the saw blade 5 (avoiding the area of ​​the saw teeth to prevent its surface from being scratched by the saw teeth), and this surface has an elastic layer, which can be selected from high-molecular synthetic rubber. This material can ensure good contact between the drive roller 16 and the saw blade 5, while providing greater friction so that the saw blade 5 can drive the drive roller 16 to rotate during the conveying process, and the elastic layer will not scratch the surface of the saw blade 5.

[0026] An eccentric transmission component is fixed on the shaft on which the transmission roller 16 is mounted. This component includes a rotating arm 17 vertically fixed to one end of the shaft, a locating pin 18 fixed to the other end of the rotating arm 17, and a rotating ring 19 rotatably connected to the locating pin 18. The rotating ring 19 is positioned off-center from the shaft's axis, so that when the shaft rotates, the rotating ring 19 forms a circular path with a proximal point near the drain pipe 14 and a distal point far from the drain pipe 14.

[0027] A steel cable 20 is secured to the outer circumference of the fixed ring 21 via a clip. The other end of the steel cable 20 is also secured to the fixed ring 21 via a clip, and the fixed ring 21 is fitted and fixed to the rigid section of the drain pipe 14. Furthermore, when the rotating ring 19 is near the drain pipe 14, the steel cable 20 remains taut. When the rotating ring 19 moves from the near point to the far point, it pulls on the rigid section of the drain pipe 14, causing it to displace. Therefore, during the reciprocating pulling and resetting process of the rigid section of the drain pipe 14, it generates high-frequency vibrations, which promote the discharge of internal cutting fluid and metal shavings, preventing internal blockages.

[0028] The working principle of this device is as follows: Step 1: During equipment operation, the saw blade 5, having completed its cut, continuously passes through the enclosed housing 8. High-pressure cutting fluid is delivered via interface 11 to two sets of flat slit nozzles 12, simultaneously spraying the teeth and surface of the saw blade 5 at high speed from both sides in an acute angle to the plane of the saw blade 5 and in the opposite direction of its running direction. This process utilizes the shearing and impact force of the jet to effectively remove the high-temperature metal chips adhering to the tooth grooves and surface; at the same time, the cutting fluid makes full contact with the surface of the saw blade 5, achieving immediate cooling and lubrication, allowing the saw blade 5 to enter the next cutting cycle in optimal condition.

[0029] The second step: The washed-off chips and waste liquid flow along the sloping bottom of the outer casing 8 into the drain outlet 13, and then into the three-section drain pipe 14. The flexible connecting sections at both ends of the pipe provide floating compensation and axial expansion and contraction capabilities, ensuring reliable pipe connection when the saw frame is raised and lowered. At the same time, the saw blade 5 drives the transmission roller 16, which is covered with a polymer rubber layer, to rotate, causing the eccentric transmission component rotating arm 17, positioning pin 18, and rotating ring 19 at its shaft end to perform circular motion.

[0030] The third step: The rotational motion of the eccentric transmission component is converted into periodic lateral traction on the rigid section in the middle of the sewage pipe 14 through the taut steel cable 20. When the rotating ring 19 moves from the near point to the far point of the trajectory, the steel cable 20 is tightened and drags the rigid pipe section to produce elastic displacement; when the rotating ring 19 returns to the near point, the tension is released, and the pipe section returns to its original position under its own elasticity. This process continues as the saw band 5 runs, causing the rigid pipe section to generate high-frequency, low-amplitude reciprocating mechanical vibration.

[0031] The fourth step: The generated mechanical vibration is efficiently transmitted to the fluid and solid particles inside the pipe through the rigid pipe wall, thereby disrupting the deposition and adhesion of chips, improving the fluidity of the mixture, and thus actively preventing pipe blockage.

[0032] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A metal processing sawing device, comprising a sawing system consisting of a base (1), a lifting unit (3), a saw belt drive unit (4), a correction unit (6), and a control box, characterized in that: It also includes a closed housing (8) fixed on the correction unit (6), the inside of the housing (8) is a flushing chamber, and there are through openings on both sides of it, one side is the inlet and the other side is the outlet, so that the saw blade (5) can pass through the housing (8). The bottom surface of the housing (8) has a drain port (13) for discharging cutting fluid and metal chips, and the drain port (13) is connected to a drain component with floating capacity. At least two flushing components are provided on the top of the housing (8). The two flushing components are located on both sides of the saw blade (5) and are used to spray high-pressure cutting fluid onto the saw blade (5) to flush away the metal chips attached to the saw blade (5). A transmission roller (16) is also provided on the side corresponding to the outlet of the outer shell (8). The transmission roller (16) contacts the side of the saw blade (5) and has friction, so that the transmission roller (16) rotates in a circle during the conveying process of the saw blade. An eccentric transmission component is provided at one end of the transmission roller (16). The eccentric transmission component is connected to the sewage discharge component by a steel cable (20) so that the rotating transmission roller (16) can drive the sewage discharge component to generate continuous vibration, which promotes the discharge of metal chips. The base (1) is also provided with a waste collection tank (2), and the output end of the sewage discharge component is located inside the waste collection tank (2).

2. The metal processing sawing equipment according to claim 1, characterized in that, The correction unit (6) consists of two symmetrically arranged arm plates, each arm plate having a groove for the saw blade (5) to pass through, so that the cutting teeth of the saw blade (5) between the two arm plates are perpendicular to the workpiece placement plane. The outer casing (8) is fixed to the arm plate by the first mounting bracket (7).

3. The metal processing sawing equipment according to claim 1, characterized in that, The inner side of the outer shell (8) has an integrally connected mounting plate (9). The mounting plate (9) is U-shaped and connected to the through opening. Two symmetrically arranged positioning rollers (10) are rotatably connected to the mounting plate (9). There is a gap between the two positioning rollers (10) for the saw blade (5) to pass through. The gap is slightly larger than the width of the saw blade (5).

4. The metal processing sawing equipment according to claim 1, characterized in that, The flushing assembly includes an interface (11) fixed to the top of the housing (8) and a nozzle (12) fixed to the top of the housing (8) and communicating with the interface (11). The interface (11) is connected to an external pump or pipeline for conveying cutting fluid.

5. The metal processing sawing equipment according to claim 3, characterized in that, The nozzle (12) is fan-shaped, and its output port is a flat slit. Its spray direction is at an acute angle to the plane of the saw blade (5) and is opposite to the running direction of the saw blade (5).

6. The metal processing sawing equipment according to claim 3, characterized in that, The bottom of the outer casing (8) is sloped, and the drain port (13) is located at the lowest position of the slope to facilitate the entry of cutting fluid and metal chips into the drain port (13).

7. The metal processing sawing equipment according to claim 1, characterized in that, The outer casing (8) is fixed with a second mounting bracket (15), and the transmission roller (16) is rotatably mounted on the second mounting bracket (15) via a shaft. The circumferential surface of the transmission roller (16) has an elastic layer to achieve elastic contact with the saw blade (5).

8. The metal processing sawing equipment according to claim 1, characterized in that, The eccentric transmission component includes a rotating arm (17) vertically fixed to the end of the shaft, a positioning pin (18) fixed to the other end of the rotating arm (17), and a rotating ring (19) rotatably connected to the positioning pin (18). One end of the steel cable (20) is fixed to the circumference of the swivel (19), and the other end is fixed to a fixing ring (21).

9. The metal processing sawing equipment according to claim 1, characterized in that, The sewage discharge component is a sewage pipe (14), which is divided into three sections, including a rigid section in the middle and elastic sections at both ends; The fixing ring (21) is fitted onto the rigid section of the drain pipe (14), while the elastic sections at both ends are fixed to the drain outlet (13) of the outer shell (8) and the inside of the waste collection tank (2).

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