A metal band saw for aluminum processing with a protective structure

Abstract

This invention discloses a metal band saw with a protective structure for aluminum processing, relating to the technical field of aluminum cutting. It includes a base with a cutting assembly at its upper end. The invention utilizes a lubrication mechanism with an impregnating belt and a sponge. As the saw blade moves, it drives the rollers to rotate, causing the impregnating belt to automatically draw lubricant from a storage box. The sponge is then squeezed at the rollers to release the lubricant in a measured amount, achieving automatic, continuous, and quantitative lubrication. Furthermore, by incorporating an arc-shaped top ring and a positioning gap, the lubricant, after being squeezed out, flows evenly along the arc surface of the top ring to both sides of the saw blade and the tooth tips. The saw blade movement carries the lubricant deep into the kerf, forming a complete oil film on the saw blade surface. This effectively lubricates the contact surface between the saw blade and the kerf, reducing frictional heat. It also isolates aluminum chips from direct contact with the saw blade, preventing them from softening and melting at high temperatures and adhering to the saw blade, thus completely avoiding band saw jamming and tooth pulling problems.

Description

Technical Field

[0001] This invention relates to the technical field of aluminum cutting, and in particular to a metal band saw for aluminum processing with a protective structure. Background Technology

[0002] In the aluminum processing industry, band saws are commonly used cutting equipment for cutting aluminum alloy bars, tubes, and profiles.

[0003] Because aluminum alloys have a low melting point and high adhesion, as the cutting depth gradually increases, the friction between the saw blade and the aluminum generates a large amount of heat, causing the temperature of the chips and the saw blade surface to rise. Under high temperature and pressure, the cut aluminum chips easily soften or even partially melt, then adhere to the tips and sides of the saw blade teeth. These adhered aluminum chips are not easy to remove and accumulate in the kerf as the saw blade continues to move, causing a sharp increase in friction between the saw blade and the workpiece. In severe cases, this can cause the saw blade to jam, teeth to pull, or even break. In addition, the adhered aluminum chips also increase the surface roughness of the cut surface, affecting the cutting quality.

[0004] Existing band saws are typically equipped with a cutting fluid spraying system, which sprays emulsion or cutting oil onto the contact area between the saw blade and the workpiece through external nozzles to achieve cooling and lubrication. This external spraying lubrication method has obvious shortcomings: on the one hand, most of the sprayed cutting fluid splashes away and is lost, with very little lubricant actually entering the kerf; on the other hand, due to the narrow kerf, as the cutting depth increases, the cutting fluid has difficulty reaching the contact area between the saw blade and the bottom of the kerf, resulting in unsatisfactory lubrication and difficulty in effectively preventing aluminum chips from adhering. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] In view of the problems existing in the above and / or existing metal band saws for aluminum processing with protective structures, the present invention is proposed.

[0007] Therefore, the problem to be solved by the present invention is how to solve the problem that with the increase of cutting depth, the cutting fluid is difficult to reach the contact area between the saw blade and the bottom of the kerf, resulting in unsatisfactory lubrication effect and difficulty in effectively preventing aluminum chips from adhering.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a metal band saw for aluminum processing with a protective structure, comprising: a base, a cutting assembly at the upper end of which is provided; the cutting assembly includes a mounting box, a cutting groove at the bottom end of the mounting box, saw blade pulleys at both ends inside the mounting box, a cutting saw blade on the outer periphery of the two saw blade pulleys, a guide frame on both sides inside the cutting groove, a guide groove at the bottom end of the guide frame, and a sliding rail on both sides of the top end of the guide frame and located in the guide groove; a guide assembly inside the sliding rail, the guide assembly including two trusses symmetrically arranged with respect to the guide groove, a support rod inserted into the sliding rail at the bottom end of the truss, a rotating sleeve rotatably arranged on the outer periphery of the support rod, an adjustment assembly at one end of the two trusses, and a lubrication assembly at one end of the guide frame, including a storage box fixedly connected to the guide frame, a lubrication groove at the position corresponding to the guide groove in the storage box, and a lubrication mechanism connected to the top end of the storage box.

[0009] As a preferred embodiment of the metal band saw for aluminum processing with protective structure described in this invention, the adjusting component includes a support platform, which is fixedly connected to a truss. A threaded groove is provided at the top of the support platform, and an adjusting screw is rotatably provided at a position corresponding to the threaded groove on the guide frame.

[0010] As a preferred embodiment of the metal band saw for aluminum processing with protective structure described in this invention, the adjusting screw includes two screws that are threadedly engaged with two threaded grooves respectively. One of the screws has a hexagonal shaft slidably disposed inside, and the other screw has a hexagonal insertion hole that engages with the hexagonal shaft inside.

[0011] As a preferred embodiment of the metal band saw for aluminum processing with protective structure described in this invention, the lubrication mechanism includes a roller and a pressure cover. The pressure cover is fixedly connected to the storage box by bolts. A roller is provided inside the pressure cover. Support plates are rotatably provided at both ends of the roller. A slider is provided on one side of the support plate. A vertical groove is opened at the position corresponding to the slider on the pressure cover. The support plate is slidably connected to the vertical groove through the slider. A guide shaft is provided at the bottom end of the support plate. An impregnation strip is provided on the outer periphery of the roller and the guide shaft.

[0012] As a preferred embodiment of the metal band saw for aluminum processing with a protective structure described in this invention, the impregnation belt includes an outer belt and an inner sponge, and the impregnation belt is wrapped around the outer periphery of the roller and the guide shaft.

[0013] As a preferred embodiment of the metal band saw for aluminum processing with protective structure described in this invention, the roller is provided with two top rings on its outer periphery. The two top rings are symmetrically arranged and their outer periphery is arc-shaped. A positioning gap is provided between the two top rings. Several guide strips are synchronously provided on the outer periphery of the roller and the top rings.

[0014] As a preferred embodiment of the metal band saw for aluminum processing with protective structure described in this invention, it further includes a positioning component. The positioning component includes a mounting cylinder, a shaft is rotatably arranged at the center of the mounting cylinder, a bevel gear is fixedly arranged at one end of the shaft, and a transmission gear meshing with the bevel gear is also arranged inside the mounting cylinder. An adjusting rod is arranged at the center of the transmission gear, and two ends of the adjusting rod are control screws arranged opposite to each other. A screw sleeve is drivenly connected to the outer periphery of the control screw, and the two screw sleeves are fixedly connected to two guide frames respectively.

[0015] As a preferred embodiment of the metal band saw for aluminum processing with protective structure described in this invention, an adjusting torsion spring is provided on the outer periphery of the shaft, and the two ends of the adjusting torsion spring are respectively fixedly connected to the inner wall of the mounting cylinder and the outer wall of the shaft by bolts.

[0016] As a preferred embodiment of the metal band saw for aluminum processing with protective structure described in this invention, the base is provided with a support platform at its top and hydraulic lifting platforms on both sides of the base, with the tops of the two hydraulic lifting platforms fixedly connected to the bottom of the mounting box.

[0017] As a preferred embodiment of the metal band saw for aluminum processing with protective structure described in this invention, the support table has several sets of support rollers on both sides of its top end. Each support roller includes two bearing seats that are fixedly connected to the support table, and a guide roller is provided between the two bearing seats.

[0018] The beneficial effects of this invention are as follows: By setting up a lubrication mechanism with an impregnation belt and a sponge, the roller rotates when the saw blade moves, allowing the impregnation belt to automatically draw lubricant from the storage box, and the sponge is squeezed at the roller to release the lubricant in a quantitative manner. This achieves automatic, continuous, and quantitative application of the lubricant. By setting an arc-shaped top ring and a positioning gap, the lubricant, after being squeezed out, can flow evenly along the arc-shaped surface of the top ring to both sides of the saw blade and the tooth tips. The movement of the saw blade carries the lubricant into the depth of the kerf, forming a complete oil film on the surface of the saw blade. On the one hand, this effectively lubricates the contact surface between the saw blade and the kerf, reducing frictional heat. On the other hand, it isolates aluminum chips from direct contact with the saw blade, preventing aluminum chips from softening and melting at high temperatures and adhering to the saw blade, thereby completely avoiding the problems of band saw jamming and tooth pulling. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a scene depicting a metal band saw for processing aluminum materials, featuring a protective structure.

[0021] Figure 2 This is a structural diagram of the cutting assembly of a metal band saw for aluminum processing with a protective structure.

[0022] Figure 3 This is a structural diagram of the guide frame of a metal band saw for aluminum processing with a protective structure.

[0023] Figure 4 This is a structural diagram of the guide assembly of a metal band saw for aluminum processing with a protective structure.

[0024] Figure 5 This is a structural diagram of the lubrication assembly of a metal band saw for aluminum processing with a protective structure.

[0025] Figure 6 This is a structural diagram of the positioning components and mounting housing of a metal band saw for aluminum processing with a protective structure.

[0026] Figure 7 This is a structural diagram of the positioning assembly of a metal band saw for aluminum processing with a protective structure.

[0027] Figure 8 This is a structural diagram of the rollers of a metal band saw for processing aluminum materials, featuring a protective structure.

[0028] Figure 9 A plan view of the rollers of a metal band saw for processing aluminum with a protective structure.

[0029] In the diagram: 1. Base; 2. Cutting assembly; 21. Mounting housing; 22. Cutting groove; 23. Saw blade pulley; 24. Cutting saw blade; 3. Guide frame; 31. Guide groove; 32. Sliding rail; 33. Guide assembly; 331. Truss; 332. Support rod; 333. Rotating sleeve; 4. Adjustment assembly; 41. Support platform; 42. Threaded groove; 43. Adjusting screw; 431. Screw; 432. Hexagonal shaft; 433. Hexagonal socket; 5. Lubrication assembly; 51. Storage box; 52. Lubrication groove; 53. Lubrication mechanism; 531. Roller; 532. 1. Top ring; 5312. Positioning gap; 5313. Guide bar; 532. Pressure cap; 533. Support plate; 534. Slider; 535. Vertical groove; 536. Guide shaft; 537. Impregnating belt; 5371. External belt; 5372. Internal sponge; 6. Positioning assembly; 61. Mounting cylinder; 62. Shaft; 63. Bevel gear disc; 64. Transmission gear; 65. Adjusting rod; 66. Control screw; 67. Screw sleeve; 68. Adjusting torsion spring; 7. Support platform; 8. Hydraulic lifting platform; 9. Support roller; 91. Shaft seat; 92. Guide roller. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1, referring to Figures 1-9 This is the first embodiment of the present invention. This embodiment provides a metal band saw for aluminum processing with a protective structure. The metal band saw for aluminum processing with a protective structure includes a base 1, a cutting assembly 2, a guide frame 3, a guide assembly 33, an adjustment assembly 4, and a lubrication assembly 5. It is used to solve the problem that with the existing external spray lubrication method, as the cutting depth increases, the cutting fluid is difficult to reach the contact area between the saw blade and the bottom of the kerf, resulting in an unsatisfactory lubrication effect and difficulty in effectively preventing aluminum chips from adhering.

[0034] Specifically, a cutting component 2 is provided at the upper end of the base 1. The base 1 is integrally cast from cast iron material and is used to support the entire equipment and absorb cutting vibration. The cutting component 2 includes a mounting box 21. A cutting groove 22 is provided at the bottom end of the mounting box 21, and the cutting groove 22 penetrates through the bottom of the mounting box 21.

[0035] Inside the mounting housing 21, saw blade pulleys 23 are rotatably mounted at both ends via bearing seats. Cutting saw blades 24 are mounted on the outer periphery of the two saw blade pulleys 23. One end of the saw blade pulley 23 is connected to an external drive motor. The drive motor drives the saw blade pulley 23 to rotate, thereby driving the cutting saw blade 24 to perform high-speed linear motion for cutting aluminum alloy rods placed on the support platform 7.

[0036] During the cutting process, as the cutting depth gradually increases, the cutting saw blade 24 needs to continuously penetrate into the aluminum rod. At this time, the surface of the saw blade is prone to sticking with the cut aluminum material. Therefore, through the lubrication component 5, the lubricant coated on the saw blade is carried into the kerf when the band saw moves. On the one hand, it lubricates the contact surface between the saw blade and the aluminum material, reducing frictional heat; on the other hand, it forms an oil film on the surface of the saw blade, isolating the cut aluminum chips from direct contact with the saw blade, preventing the aluminum material from softening and melting due to high temperature and sticking to the tip of the saw blade teeth, thereby effectively avoiding the problem of the band saw jamming.

[0037] Specifically, guide frames 3 are provided on both sides of the inside of the cutting groove 22. The two guide frames 3 are symmetrically arranged along the length of the cutting groove 22. Each guide frame 3 is fixedly connected to the inner wall of the mounting box 21 by bolts. A guide groove 31 is provided at the bottom of the guide frame 3. The width of the guide groove 31 matches the thickness of the cutting saw blade 24. It is used to limit the back and side of the cutting saw blade 24 during cutting to prevent the saw blade from deviating.

[0038] The top of the guide frame 3 and both sides of the guide groove 31 are provided with sliding rails 32. The sliding rails 32 are T-shaped groove structures. The sliding rails 32 are provided with guide components 33. The function of the guide components 33 is to further guide and straighten the two sides of the saw blade before the cutting saw blade 24 enters the guide groove 31, thereby reducing the friction between the saw blade and the guide frame 3.

[0039] Specifically, the guide assembly 33 includes two trusses 331 symmetrically arranged with respect to the guide groove 31. The two trusses 331 are located on the left and right sides of the guide groove 31, respectively. Each truss 331 has an arched structure. The bottom end of the truss 331 is rotatably provided with a support rod 332 inserted into the sliding rail 32. The support rod 332 is a cylindrical steel rod with a diameter equal to the width of the sliding rail 32, so that the support rod 332 can slide horizontally within the sliding rail 32 but cannot detach.

[0040] A rotating sleeve 333 is rotatably provided on the outer periphery of the support rod 332. The rotating sleeve 333 is a cylinder made of wear-resistant rubber, which is sleeved on the outside of the support rod 332 and can rotate freely through the bearing. When the cutting saw blade 24 passes between the two trusses 331, the rotating sleeve 333 contacts the side of the saw blade, converting sliding friction into rolling friction, thereby reducing saw blade wear and heat generation. An adjustment component 4 is provided at one end of the two trusses 331 to adjust the distance between the two trusses 331 to accommodate saw blades of different thicknesses or to compensate for wear.

[0041] Specifically, the lubrication assembly 5 is located at one end of the guide frame 3. The lubrication assembly 5 includes a storage box 51 fixedly connected to the guide frame 3. The storage box 51 is a rectangular box made of stainless steel plate and is fixed to the side wall of the guide frame 3 by screws. Furthermore, one end of the storage box 51 is connected to an oil pipe for replenishing lubricant inside the storage box 51.

[0042] A lubrication groove 52 is provided at the position corresponding to the guide groove 31 in the storage box 51. The opening of the lubrication groove 52 is directly opposite the guide groove 31, so that the cutting saw blade 24 can pass through the inside of the storage box 51. A lubrication mechanism 53 is connected to the top of the storage box 51. The lubrication mechanism 53 is used to continuously and evenly coat the surface of the cutting saw blade 24 with the lubricant, emulsion or special cutting oil in the storage box 51.

[0043] Furthermore, because the saw teeth at the bottom of the band saw can form a small triangular space, the tension of the lubricant allows it to adhere to the tooth grooves of the band saw. When the band saw moves, the lubricant coated on the saw blade is carried into the kerf. On the one hand, it lubricates the contact surface between the saw blade and the aluminum material, reducing frictional heat; on the other hand, it forms an oil film on the surface of the saw blade, isolating the cut aluminum chips from direct contact with the saw blade, preventing the aluminum material from softening and melting due to high temperature and sticking to the tip of the saw blade teeth, thus effectively avoiding the problem of the band saw jamming.

[0044] Example 2, refer to Figures 2-9 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0045] Specifically, the adjustment assembly 4 includes a support 41, which is fixedly connected to the truss 331. The support 41 is a rectangular steel plate, which is fixed to the end of the truss 331 facing the center of the guide frame 3 by welding or bolting. The top of the support 41 is provided with a threaded groove 42, and the inner wall of the threaded groove 42 is machined with internal threads. The guide frame 3 is rotatably provided with an adjusting screw 43 at a position corresponding to the threaded groove 42. The adjusting screw 43 is installed on the upper surface of the guide frame 3 through a bearing seat and can rotate around its own axis but cannot move axially.

[0046] Specifically, the adjusting screw 43 includes two screws 431 that are threaded into two threaded grooves 42 respectively. The two screws 431 are arranged coaxially, but their threads rotate in opposite directions. One of the screws 431 has a hexagonal through hole axially inside, and a hexagonal shaft 432 is slidably disposed in the through hole. The hexagonal shaft 432 is a hexagonal prism steel rod that can slide freely in the screw 431 but cannot rotate relative to it. The other screw 431 has a hexagonal insertion hole 433 inside that mates with the hexagonal shaft 432.

[0047] When the hexagonal shaft 432 is simultaneously inserted into the hexagonal holes of the two screws 431, the two screws 431 are connected as one unit. Rotating the adjusting screw 43 can make the two trusses 331 move closer or further apart synchronously, thereby achieving precise adjustment of the guide gap on both sides of the saw blade. This structure avoids the cumbersome operation of adjusting the two guide blocks separately in the traditional adjustment method, improving adjustment efficiency and positioning accuracy. At the same time, during installation, the hexagonal shaft 432 can be pulled out to facilitate the vertical insertion of the band saw into the guide groove 31 from top to bottom.

[0048] Specifically, the lubrication mechanism 53 includes a roller 531 and a pressure cover 532. The pressure cover 532 is a casting or sheet metal part, which is fixedly connected to the top edge of the storage box 51 by bolts. A closed cavity is formed between the pressure cover 532 and the storage box 51. The roller 531 is provided inside the pressure cover 532. The roller 531 is a stainless steel hollow shaft, which is supported by bearings at both ends. Support plates 533 are rotatably provided at both ends of the roller 531. The support plates 533 are L-shaped steel plates, and a slider 534 is welded to one side of the support plate 533.

[0049] A vertical groove 535 is provided at the position corresponding to the pressure cap 532 and the slider 534. The vertical groove 535 is a rectangular through groove. The slider 534 is embedded in the vertical groove 535 and can slide along the vertical direction. The support plate 533 is slidably connected to the vertical groove 535 through the slider 534, so that the entire roller 531 can float up and down, so that the roller 531 can fall on the top of the cutting saw blade 24.

[0050] When the cutting saw blade 24 moves, it can drive the roller 531 to roll, thereby driving the impregnation belt 537 to roll. The bottom end of the support plate 533 is provided with a guide shaft 536. The guide shaft 536 is a fixed shaft, and its two ends are connected to the support plate 533 by screws. The impregnation belt 537 is wrapped around the outer periphery of the roller 531 and the guide shaft 536. This structure allows the impregnation belt 537 to circulate under the drive of the roller 531 and maintain appropriate tension.

[0051] Specifically, the impregnation tape 537 includes an outer belt 5371 and an inner sponge 5372. The outer belt 5371 is an annular belt made of polyurethane material. The inner sponge 5372 is fixed to the inner surface of the outer belt 5371 by adhesive or sewing. The impregnation tape 537 is wrapped around the outer periphery of the roller 531 and the guide shaft 536. The guide shaft 536 is located below the liquid surface inside the storage box 51, and the roller 531 is located above the storage box 51 and in contact with the surface of the cutting saw blade 24.

[0052] When the roller 531 rotates, the wetting belt 537 moves with the roller 531. The lower wetting belt 537 passes over the lubricant liquid surface in the storage box 51, and the sponge absorbs and stores the lubricant. As the wetting belt 537 moves upward to the roller 531, the sponge is squeezed by the roller 531 and the outer belt 5371, and the internally stored lubricant is squeezed out, dripping or coating the surface of the roller 531, and then transferred to the cutting saw blade 24. This structure realizes the automatic absorption, delivery and quantitative release of lubricant without the need for an external pumping device. It is compact and highly reliable.

[0053] Specifically, two top rings 5311 are provided on the outer periphery of the roller 531. The two top rings 5311 are symmetrically arranged and their outer periphery is arc-shaped. A positioning gap 5312 is provided between the two top rings 5311. The width of the positioning gap 5312 is equal to the thickness of the cutting saw blade 24, so that the saw blade can pass through the two top rings 5311. Several guide strips 5313 are provided on the outer periphery of the roller 531 and the top rings 5311.

[0054] The guide bar 5313 is a convex rib extending axially and embedded in the groove of the inner wall of the top ring 5311 to prevent the top ring 5311 from slipping on the roller 531. Due to its arc-shaped design, it can effectively guide the lubricating oil. The top ring 5311 can slide and adjust its position along the axial direction of the roller 531 to accommodate saw blades of different widths. When the cutting saw blade 24 passes between the two top rings 5311, the side of the saw blade is tangent to the arc-shaped surface of the top ring 5311, squeezing the top ring 5311 to slightly separate it, while simultaneously centering and guiding the saw blade. The squeezed-out lubricant flows along the arc-shaped surface of the top ring 5311 and evenly covers the two sides and tooth tips of the saw blade, ensuring that the lubricant is reliably carried into the depth of the saw kerf, achieving isolation and lubrication between the inner wall of the saw kerf and the saw blade, fundamentally preventing the aluminum chips from melting and adhering.

[0055] Specifically, it also includes a positioning component 6, which includes a mounting cylinder 61. The mounting cylinder 61 is a cylindrical shell that is fixed to the top of the mounting box 21 by a bracket. A shaft 62 is rotatably arranged at the center of the mounting cylinder 61. The two ends of the shaft 62 are connected to the end caps of the mounting cylinder 61 by rolling bearings. A bevel gear 63 is fixedly arranged at one end of the shaft 62. A transmission gear 64 that meshes with the bevel gear 63 is also arranged inside the mounting cylinder 61. The transmission gear 64 is a small bevel gear, and an adjusting rod 65 is fixedly arranged at its center. The adjusting rod 65 is horizontally arranged and extends out of the mounting cylinder 61 at both ends.

[0056] The two ends of the adjusting rod 65 are control screws 66 arranged opposite to each other, that is, the threads of the two control screws 66 are opposite. Each control screw 66 has a screw sleeve 67 connected to its outer periphery by a threaded drive. The screw sleeve 67 is an internally threaded sleeve. The two screw sleeves 67 are respectively fixedly connected to the two guide frames 3 by connecting plates.

[0057] When the rotating shaft 62 is rotated, the bevel gear 63 drives the transmission gear 64 to rotate, causing the adjusting rod 65 to rotate, which in turn drives the two lead screw sleeves 67 to move synchronously in opposite directions, thereby achieving precise adjustment of the distance between the two guide frames 3. The positioning component 6 can simultaneously adjust the relative position of the left and right guide frames 3 to ensure that the storage box 51 can be as close as possible to the beginning of the saw groove.

[0058] Specifically, an adjusting torsion spring 68 is provided on the outer periphery of the shaft 62. The adjusting torsion spring 68 is fitted in the middle of the shaft 62. The two ends of the adjusting torsion spring 68 are fixedly connected to the inner wall of the mounting cylinder 61 and the outer wall of the shaft 62 by bolts, respectively. The adjusting torsion spring 68 applies a continuous torque, so that the shaft 62 always has a tendency to rotate in one direction, thereby driving the two lead screw sleeves 67 to move closer to each other through the transmission gear 64, the adjusting rod 65, and the control lead screw 66.

[0059] This ensures that the two guide frames 3 always tend to move closer to each other. When the cutting saw blade 24 sways laterally during the cutting process, the guide frame 3 can automatically press the side of the saw blade, while maintaining a small gap between the storage box 51 and the saw blade and the workpiece being cut, ensuring that the lubrication groove 52 is always facing the kerf, so that the lubricant can be continuously introduced into the depth of the kerf. The preload of the torsion spring 68 can be adjusted by replacing springs with different stiffnesses to accommodate saw blades of different thicknesses.

[0060] Specifically, a support platform 7 is provided at the top of the base 1. The support platform 7 is a rectangular steel plate and is fixed to the upper surface of the base 1 by bolts. Hydraulic lifting platforms 8 are provided on both sides of the base 1. The hydraulic lifting platforms 8 include hydraulic cylinders and guide columns. The tops of the two hydraulic lifting platforms 8 are fixedly connected to the bottom of the mounting box 21. The hydraulic cylinders of the hydraulic lifting platforms 8 are connected to an external hydraulic station. By controlling the inflow and outflow of hydraulic oil, the mounting box 21 and the cutting assembly 2 are driven to rise or fall as a whole, thereby realizing the feed control of the cutting depth.

[0061] Specifically, several sets of support rollers 9 are provided on both sides of the top of the support platform 7. Each set of support rollers 9 includes two bearing seats 91 fixedly connected to the support platform 7. A guide roller 92 is provided between the two bearing seats 91. The guide roller 92 is a cylindrical steel roller, which is mounted on the bearing seats 91 at both ends by bearings and can rotate freely. The multiple sets of support rollers 9 are arranged at equal intervals along the length of the support platform 7 to support the aluminum alloy rod to be cut and allow the rod to move easily in the horizontal direction to adjust the cutting position. The surface of the guide roller 92 is processed with anti-slip texture to prevent the rod from rolling during cutting.

[0062] In use, first adjust the distance between the guide frame 3 and the guide assembly 33 according to the diameter of the aluminum alloy rod to be cut. The operator pushes the hexagonal shaft 432 on the adjusting screw 43 to connect the two screws 431 into one unit. Then, rotate the adjusting screw 43, and drive the two trusses 331 to move synchronously towards or away from each other along the sliding rail 32 through the threaded groove 42 until the rotating sleeve 333 contacts the side of the cutting saw blade 24. At the same time, the shaft 62 of the positioning assembly 6 rotates, and drives the two screw sleeves 67 through the bevel gear 63, the transmission gear 64, the adjusting rod 65 and the control screw 66, so that the two guide frames 3 move synchronously, ensuring that the center line of the guide groove 31 coincides with the center line of the cutting saw blade 24.

[0063] Then, the aluminum alloy rod is placed on the support roller 9, and the position of the rod is adjusted so that its cutting line is aligned with the cutting saw blade 24. The drive motor is started to drive the saw blade pulley 23 and the cutting saw blade 24 to rotate at high speed. At the same time, the hydraulic lifting platform 8 is started to slowly lower the installation box 21. After the cutting saw blade 24 contacts the aluminum rod, it begins to cut. During the cutting process, the wetting belt 537 of the lubrication mechanism 53 rotates continuously. The lower sponge draws lubricant from the storage box 51, and the upper part is squeezed at the roller 531. The lubricant is coated on the tooth tips and sides of the cutting saw blade 24 along the arc surface of the top ring 5311.

[0064] As the saw blade enters the kerf, the lubricant is drawn into the kerf, forming an oil film on the saw blade surface. This film isolates the cut aluminum chips from the saw blade, preventing them from sticking due to high-temperature melting. Simultaneously, due to the action of the adjusting torsion spring 68, the two guide frames 3 are always slightly pressed against the saw blade, keeping the lubrication groove 52 of the storage box 51 close to the kerf entrance, ensuring a continuous supply of lubricant. After cutting, the hydraulic lifting platform 8 lifts the mounting box 21 to remove the cut aluminum rod. Throughout the process, the band saw will not jam due to aluminum chips sticking to it, and the surface finish of the cut is significantly improved.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A metal band saw machine for processing aluminum materials with a protection structure, characterized in that: The application relates to a cutting device, which comprises a base (1) provided with a cutting assembly (2) at the upper end, the cutting assembly (2) comprises a mounting box (21), the bottom end of the mounting box (21) is provided with a cutting groove (22), the inside of the mounting box (21) is provided with saw blade pulleys (23) at two ends, the outer circumferential sides of the two saw blade pulleys (23) are jointly provided with cutting saw blades (24), the inside of the cutting groove (22) is provided with guide racks (3) at two sides, the bottom end of each guide rack (3) is provided with a guide groove (31), the top end of each guide rack (3) and the two sides of the guide groove (31) are provided with sliding rails (32), the inside of each sliding rail (32) is provided with a guide assembly (33), the guide assembly (33) comprises two trusses (331) symmetrically arranged in the guide groove (31), the bottom end of each truss (331) is provided with a supporting rod (332) inserted into the inside of the sliding rail (32), the outer circumferential side of the supporting rod (332) is rotatably provided with a rotating sleeve (333), one end of each truss (331) is provided with an adjusting assembly (4), a lubricating assembly (5) is arranged at one end of the guide rack (3) and comprises a storage box (51) fixedly connected with the guide rack (3), the storage box (51) is provided with a lubricating groove (52) at a position corresponding to the guide groove (31), and the top end of the storage box (51) is connected with a lubricating mechanism (53).

2. The metal band saw machine with a protection structure for processing aluminum materials according to claim 1, characterized in that: The adjusting assembly (4) comprises a bearing platform (41) fixedly connected with the truss (331), and the top end of the bearing platform (41) is provided with a threaded groove (42), and the guide rack (3) is rotatably provided with an adjusting screw rod (43) at a position corresponding to the threaded groove (42).

3. The metal band saw machine with a protection structure for processing aluminum materials according to claim 2, characterized in that: The adjusting screw rod (43) comprises two screw rods (431) threadedly matched with the two threaded grooves (42), respectively, the inside of one of the screw rods (431) is slidably provided with a hexagonal shaft (432), and the inside of the other screw rod (431) is provided with a hexagonal socket (433) matched with the hexagonal shaft (432).

4. The metal band saw machine with a protection structure for processing aluminum materials according to claim 1, characterized in that: The lubricating mechanism (53) comprises a roller shaft (531) and a gland (532), the gland (532) is fixedly connected with the storage box (51) through bolts, the inside of the gland (532) is provided with the roller shaft (531), the two ends of the roller shaft (531) are rotatably provided with supporting plates (533), one side of each supporting plate (533) is provided with a sliding block (534), the gland (532) is provided with a vertical groove (535) at a position corresponding to the sliding block (534), the supporting plate (533) is slidably connected with the vertical groove (535) through the sliding block (534), the bottom end of each supporting plate (533) is provided with a guide shaft (536), and the outer circumferential sides of the roller shaft (531) and the guide shaft (536) are provided with an impregnation belt (537).

5. The metal band saw machine with a protection structure for processing aluminum materials according to claim 4, characterized in that: The impregnation belt (537) comprises an outer belt (5371) and an inner sponge (5372), and the impregnation belt (537) is arranged on the outer circumferential sides of the roller shaft (531) and the guide shaft (536).

6. The metal band saw machine with a protection structure for processing aluminum materials according to claim 5, characterized in that: Two top rings (5311) are provided on the outer periphery of the roller (531). The two top rings (5311) are symmetrically arranged and their outer periphery is arc-shaped. A positioning gap (5312) is provided between the two top rings (5311). Several guide strips (5313) are provided on the outer periphery of the roller (531) and the top rings (5311).

7. The metal band saw machine with a protective structure for processing aluminum materials according to any one of claims 1, 2, 5 or 6, characterized in that: It also includes a positioning component (6), which includes a mounting cylinder (61). A shaft (62) is rotatably arranged at the center of the mounting cylinder (61). A bevel gear (63) is fixedly arranged at one end of the shaft (62). A transmission gear (64) meshing with the bevel gear (63) is also arranged inside the mounting cylinder (61). An adjusting rod (65) is arranged at the center of the transmission gear (64). The two ends of the adjusting rod (65) are control screws (66) arranged opposite to each other. A screw sleeve (67) is connected to the outer periphery of the control screw (66). The two screw sleeves (67) are fixedly connected to the two guide frames (3) respectively.

8. The metal band saw machine with a protection structure for processing aluminum materials according to claim 7, characterized in that: An adjusting torsion spring (68) is provided on the outer periphery of the shaft (62). The two ends of the adjusting torsion spring (68) are fixedly connected to the inner wall of the mounting cylinder (61) and the outer wall of the shaft (62) respectively by bolts.

9. The metal band saw machine with a protection structure for processing aluminum materials according to claim 1, characterized in that: The base (1) is provided with a support platform (7) at the top and hydraulic lifting platforms (8) are provided on both sides of the base (1). The tops of the two hydraulic lifting platforms (8) are fixedly connected to the bottom of the mounting box (21).

10. The metal band saw machine with a protection structure for processing aluminum materials according to claim 9, characterized in that: Several sets of support rollers (9) are provided on both sides of the top of the support platform (7). Each support roller (9) includes two bearing seats (91) that are fixedly connected to the support platform (7). A guide roller (92) is provided between the two bearing seats (91).

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