Metal profile chamfering device

Abstract

The utility model provides a metal profile chamfering device which comprises a tool apron, two special-shaped tools and a limiting mechanism used for limiting vertical displacement of a metal profile, the top of the tool apron is provided with a channel penetrating through the front side face and the rear side face of the tool apron, the two special-shaped tools are arranged on the two sides in the channel respectively and arranged in a mirror image mode, and the top faces of the special-shaped tools incline towards the lower portion of the inner side. The front side of the special-shaped cutter is provided with a front side face, the connecting position of the top face and the front side face of the special-shaped cutter is called as a connecting part, the connecting part is gradually thinned upwards and extends to form a cutting edge, and the limiting mechanism is arranged in front of the special-shaped cutter. When the metal profile passes through the channel, the two corners of the bottom side of the metal profile are cut by the cutting edges of the two special-shaped cutters respectively to form chamfers, the two special-shaped cutters are fixed in the process, the smoothness of the obtained chamfered surfaces is good, cut waste is in a continuous strip shape, the situation that the surface of the metal profile is scratched due to the fact that granular waste is formed can be avoided, and the service life of the metal profile is prolonged. Meanwhile, extra electric quantity for driving the cutter is not needed.

Description

Technical Field

[0001] The utility model relates to the technical field of metal casting and rolling, in particular to a metal profile chamfering device. Background Art

[0002] During the rolling process of metal profile rolling lines, in order to remove burrs and sharp edges on both sides of the profile, a chamfering machine is usually used for online chamfering. The chamfering machine uses a rotating cutting tool to remove burrs and sharp edges to form a chamfer. During chamfering, the profile moves in a straight line due to the traction of the rolling line, and the tool rotates due to the power of the spindle, which will cause the chamfered surface to be rough. In addition, the removed waste is granular and uncontrollable, which can easily splash onto the profile and cause poor appearance. In addition, since the tool needs to rotate continuously and the spindle needs to provide continuous power, the power consumption is relatively high. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the utility model proposes a metal profile chamfering device, which can reduce the roughness of the chamfered surface, avoid the formation of granular waste, and does not require electricity consumption.

[0004] The technical solution of the present utility model is achieved as follows:

[0005] A metal profile chamfering device includes a tool holder, two special-shaped tools and a limiting mechanism for limiting the upward and downward displacement of the metal profile. A channel is provided on the top of the tool holder, which runs through its front and rear sides. The two special-shaped tools are respectively arranged on both sides of the channel and are mirror-imaged. The top surfaces of the special-shaped tools are inclined inwardly and downwardly. The front sides of the special-shaped tools have front side surfaces. The connection position between the top surfaces of the special-shaped tools and the front side surfaces is called a connecting portion. The connecting portion gradually becomes thinner and extends upward to form a blade. The limiting mechanism is arranged in front of the special-shaped tools.

[0006] Preferably, a groove is provided on the top surface of the special-shaped tool near the front side surface, and the connection portion where the front side wall of the groove connects with the front side surface gradually becomes thinner and extends upward to form a blade.

[0007] Preferably, the upper portion of the front side surface of the special-shaped tool is tilted downward.

[0008] Preferably, the top surface of the special-shaped tool is bent from the outside to the inside to form a concave arc surface.

[0009] Preferably, the special-shaped tool has a first surface, the first surface is located between the inner side of the top surface and the inner side of the front side surface, and the first surface is inclined downward.

[0010] Preferably, the orthographic projection of the first surface is a triangle.

[0011] Preferably, the limiting mechanism includes an upper pressing wheel and a lower pressing wheel, the lower end of the upper pressing wheel abuts against the upper surface of the metal profile, and the lower pressing wheel abuts against the lower surface of the metal profile.

[0012] Preferably, the upper pressing wheel and the lower pressing wheel are staggered front to back;

[0013] Alternatively, the axis of the upper pressing wheel and the axis of the lower pressing wheel are located on the same vertical plane.

[0014] Preferably, a lifting mechanism is provided above the upper pressing wheel, which can drive the upper pressing wheel to move up and down.

[0015] Preferably, the lifting mechanism includes a connecting frame and a cylinder for driving the connecting frame to lift and lower, the upper pressure wheel is rotatably connected to the lower end of the connecting frame, and the piston rod of the cylinder is connected to the upper end of the connecting frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The metal profile chamfering device includes a tool holder and two special-shaped cutting tools. The top of the tool holder is provided with a channel running through its front and rear sides for the metal profile to pass through. The two special-shaped cutting tools are arranged on either side of the channel in a mirrored arrangement. The top surfaces of the special-shaped cutting tools are tilted inward and downward. The connection between the top surface and the front side of the special-shaped cutting tools gradually thins and extends upward to form a cutting edge. When the metal profile passes through the channel, the two corners on the bottom side of the metal profile are cut by the blades of the two special-shaped cutting tools. During this process, the two special-shaped cutting tools are fixed. Due to the linear motion of the metal profile caused by the rolling, the special-shaped cutting tools and the metal profile generate relative motion, which causes the special-shaped cutting tools to generate cutting force relative to the product, removing burrs and sharp edges at the two corners on the bottom side of the metal profile and forming the chamfer. Because the two special-shaped cutting tools are fixed, the metal profile chamfered surface is smooth after the special-shaped cutting tools cut, and the waste material after cutting is in the form of a continuous strip, which can avoid the formation of granular waste and scratching the metal profile surface. In addition, the special-shaped cutting tools do not need to move, and no additional power is consumed to drive the cutting tools, which helps to reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 3 This is a cross-sectional view of the first embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the special-shaped tool in Example 1 of the present utility model;

[0022] Figure 5 This is a front view of the special-shaped tool in Example 1 of the present utility model;

[0023] Figure 6 This is a right side view of the special-shaped cutting tool in Example 1 of the present utility model;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the special-shaped tool in the second embodiment of the present utility model;

[0025] Figure 8 This is a front view of the special-shaped tool in Example 2 of the present utility model;

[0026] Figure 9 It is a left view of the special-shaped tool in the second embodiment of the present utility model.

[0027] Figure ID:

[0028] 1- tool holder; 11- channel; 2- special-shaped tool; 21- top surface of special-shaped tool; 211- groove; 22- front side of special-shaped tool; 23- blade; 24- first surface; 3- upper pressure wheel; 4- lower pressure wheel; 5- lifting mechanism; 51- connecting frame; 511- first plate; 512- second plate; 513- cantilever; 514- movable rod; 52- cylinder; 6- bracket; 61- mounting plate; 7- metal profile. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example 1

[0032] See also Figures 1 to 6 A metal profile chamfering device includes a tool holder 1, two special-shaped tools 2 and a limiting mechanism for limiting the up and down displacement of the metal profile 7. The top of the tool holder 1 is provided with a channel 11 running through its front and rear sides. The channel 11 can allow the metal profile 7 to pass through. The two special-shaped tools 2 are respectively arranged on both sides of the channel 11 and are mirror-imaged. The top surface 21 of the special-shaped tool 2 is inclined inwardly and downwardly. The front side of the special-shaped tool 2 has a front side surface 22. The connection position between the top surface 21 and the front side surface 22 of the special-shaped tool 2 is called a connecting portion. The connecting portion gradually becomes thinner and extends upward to form a blade 23. The limiting mechanism is arranged in front of the special-shaped tool 2.

[0033] It should be noted that when the metal profile 7 passes through the channel 11, Figure 3 The left side is the front side, and the right side is the back side. The two corners on the bottom side of the metal profile 7 are cut by the blades 23 of the two special-shaped tools 2 respectively. The inner side of the “top surface 21 of the special-shaped tool 2 is inclined downwardly and inwardly” refers to the side of the special-shaped tool 2 close to the metal profile 7, and the outer side refers to the side of the special-shaped tool 2 away from the metal profile 7. The “top surface 21 of the special-shaped tool 2 is inclined downwardly and inwardly” means that the top surface 21 of the special-shaped tool 2 is inclined downwardly from the outer side to the inner side, that is, the outer edge of the top surface 21 is higher than the inner edge of the top surface 21. The top surface 21 is inclined, so that the blade 23 at the connection between the top surface 21 of the special-shaped tool 2 and the front side surface 22 is also inclined, which is conducive to forming the chamfer of the metal profile 7.

[0034] As the metal profile 7 passes through the channel 11, the two corners on the bottom side of the metal profile 7 are cut by the blades 23 of the two special-shaped cutters 2. During this process, the two special-shaped cutters 2 are stationary. As the metal profile 7 is pulled into linear motion by rolling, relative motion is generated between the special-shaped cutters 2 and the metal profile 7, causing the special-shaped cutters 2 to generate a cutting force relative to the product, removing burrs and sharp edges from the two corners on the bottom side of the metal profile 7 and forming a chamfer. Because the two special-shaped cutters 2 are stationary, the chamfered surface of the metal profile 7 is smooth after the special-shaped cutters 2 cut the metal profile 7, and the removed waste material is in the form of continuous strips, which can prevent the formation of granular waste that would scratch the surface of the metal profile 7. In addition, the special-shaped cutters 2 do not need to move, and no additional power is required to drive the cutters, which helps reduce production costs.

[0035] The metal profile 7 first passes through the limiting mechanism and then passes through the special-shaped tool 2. The setting of the limiting mechanism can prevent the metal profile 7 from moving up and down when passing through the channel 11, thereby ensuring the quality of the chamfer and ensuring the stability of the metal profile 7 passing through.

[0036] like Figures 4 to 6The top surface 21 of the special-shaped tool 2 is provided with a groove 211 near the front side surface 22. The connection portion where the front side wall of the groove 211 is connected to the front side surface 22 gradually becomes thinner and extends upward to form a blade 23. The provision of the groove 211 allows the waste generated by the cutting of the blade 23 to be stored in the groove 211, further avoiding scratching the surface of the metal profile 7. Moreover, since the top surface 21 of the special-shaped tool 2 is inclined inwardly and downwardly, the groove 211 on the top surface 21 is also inclined inwardly and downwardly. The waste entering the groove 211 can slide along the inclined groove 211 to the area between the two special-shaped tools 2, which is conducive to the discharge of the waste. When the waste in the area between the two special-shaped tools 2 is about to be full, workers can be arranged to stop the machine for cleaning, or a waste discharge channel can be set in the area between the two special-shaped tools 2 to automatically discharge the waste without the need for manual regular cleaning.

[0037] Preferably, see Figure 5 and Figure 6 The upper portion of the front side surface 22 of the special-shaped cutter 2 is tilted downward, and the tilted front side surface 22 can prevent the front side surface from scratching the bottom surface of the metal profile 7. In addition, the waste material produced by the cutting edge 23 may fall to the rear side of the blade 23 and slide along the tilted top surface of the special-shaped cutter 2, or may fall to the front side of the blade 23. Therefore, the upper portion of the front side surface 22 of the special-shaped cutter 2 is set to a downward tilt structure, which is conducive to the waste material sliding downward and prevents the waste material from accumulating near the blade 23 and causing scratches on the surface of the metal profile 7.

[0038] For details, see Figure 3 The limiting mechanism includes an upper pressing wheel 3 and a lower pressing wheel 4. The lower end of the upper pressing wheel 3 abuts the upper surface of the metal profile 7, and the lower pressing wheel 4 abuts the lower surface of the metal profile 7. By setting the upper pressing wheel 3 and the lower pressing wheel 4, the upper pressing wheel 3 limits the upward movement of the metal profile 7, and the lower pressing wheel 4 limits the downward movement of the metal profile 7, thereby ensuring the quality of the chamfer and ensuring the stability of the metal profile 7 when passing through the channel 11.

[0039] The positions of the upper pressing wheel 3 and the lower pressing wheel 4 can be set to a front-to-back staggered setting or an up-down setting as needed. In this embodiment, the upper pressing wheel 3 and the lower pressing wheel 4 are set to a front-to-back staggered setting, which can not only limit the up and down movement of the metal profile 7, but also avoid the pressure generated between the upper pressing wheel 3 and the lower pressing wheel 4 causing deformation of the metal profile 7.

[0040] In other embodiments, the axis of the upper pressing wheel 3 and the axis of the lower pressing wheel 4 are located on the same vertical plane, which can not only limit the up and down movement of the metal profile 7, but also generate pressure on the upper and lower surfaces of the metal profile 7 to level the surface of the metal profile 7.

[0041] Preferably, a lifting mechanism 5 is provided above the upper pressing wheel 3 to drive the upper pressing wheel 3 to move up and down. By controlling the lifting and lowering of the upper pressing wheel 3, the distance between the lower end of the upper pressing wheel 3 and the special-shaped cutter 2 is adjusted, thereby being suitable for metal profiles 7 of different thicknesses. When a thicker metal profile 7 needs to be chamfered, the lifting mechanism 5 is controlled to rise to increase the distance between the lower end of the upper pressing wheel 3 and the special-shaped cutter 2, allowing the thicker metal profile 7 to pass through the channel 11; when a thinner metal profile 7 needs to be chamfered, the lifting mechanism 5 is controlled to descend to reduce the distance between the lower end of the upper pressing wheel 3 and the special-shaped cutter 2, allowing the thinner metal profile 7 to abut the upper pressing wheel 3 when passing through the channel 11.

[0042] For details, see Figure 1 The lifting mechanism 5 includes a connecting frame 51 and a cylinder 52 that drives the connecting frame 51 to rise and fall. The upper pressure wheel 3 is rotatably connected to the lower end of the connecting frame 51, and the piston rod of the cylinder 52 is connected to the upper end of the connecting frame 51. When the piston rod of the cylinder 52 is extended or retracted, it can drive the connecting frame 51 to rise and fall, thereby realizing the upper pressure wheel 3 to move up and down, and then adjust the position of the upper pressure wheel 3. In this embodiment, the connecting frame 51 includes a first flat plate 511, a second flat plate 512 and two cantilevers 513. The first flat plate 511 is fixedly connected to the piston rod of the cylinder 52, the second flat plate 512 is fixedly installed below the first flat plate 511, and the two cantilevers 513 are fixedly installed on the bottom surface of the second flat plate 512. The two ends of the rotating shaft of the upper pressure wheel 3 are respectively rotatably connected to the two cantilevers 513. In order to install the cylinder 52, this embodiment is provided with a bracket 6. The cylinder 52 is mounted on the mounting plate 61 at the top of the bracket 6, and the knife holder 1 is mounted at the bottom end of the bracket 6. In order to make the connecting frame 51 more stable when it is raised and lowered, the connecting frame 51 also includes at least two movable rods 514 arranged on both sides of the piston rod. The lower ends of the movable rods 514 are connected to the first flat plate 511. The rod portions of the movable rods 514 pass through the mounting plate 61 and can slide relative to the mounting plate 61 to limit the shaking of the first flat plate 511, thereby making the connecting frame 51 more stable when it is raised and lowered.

[0043] Example 2

[0044] See also Figures 7 to 9 In this embodiment, another special-shaped tool 2 is provided. The two special-shaped tools 2 are respectively arranged on both sides of the channel 11 and are mirror-imaged. The top surface 21 of the special-shaped tool 2 is inclined inwardly and downwardly. The connection position between the top surface 21 of the special-shaped tool 2 and the front side surface 22 is called a connecting portion. The connecting portion gradually becomes thinner and extends upward to form a blade 23. Moreover, the top surface 21 of the special-shaped tool 2 is bent from the outside to the inside to form a concave arc surface. The top surface 21 of the special-shaped tool 2 is a curved surface, so that the waste generated by the cutting edge 23 can slide along the curved surface to avoid scratching the surface of the metal profile 7. The concave arc surface has the same function as the "groove 211" in the first embodiment.

[0045] Preferably, the special-shaped cutter 2 has a first surface 24, which is located between the inner side of the top surface 21 and the inner side of the front side 22, and the first surface 24 is tilted downward. The downward tilt of the first surface 24 facilitates the downward sliding of waste material that falls in front of the blade 23, thereby avoiding scratching the surface of the metal profile 7.

[0046] In this embodiment, the orthographic projection of the first surface 24 is a triangle. The first surface 24 with a triangular orthographic projection is easier to cut than other shapes such as a rectangle and a circle, which is beneficial to simplifying the production of the special-shaped tool 2 and forming a first surface 24 with a material guiding function.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A metal profile chamfering device, characterized in that: The invention comprises a knife seat (1), two special-shaped knives (2) and a limiting mechanism for limiting the upward and downward displacement of a metal profile (7); the top of the knife seat (1) is provided with a channel (11) penetrating the front and rear sides thereof; the two special-shaped knives (2) are respectively arranged on both sides of the channel (11) and are arranged in a mirror image; the top surface (21) of the special-shaped knife (2) is inclined downwardly and inwardly; the front side of the special-shaped knife (2) has a front side surface (22); the connection position between the top surface (21) of the special-shaped knife (2) and the front side surface (22) is called a connecting portion; the connecting portion gradually becomes thinner and extends upward to form a blade (23); and the limiting mechanism is arranged in front of the special-shaped knife (2).

2. The metal profile chamfering device according to claim 1, characterized in that: A groove (211) is provided on the top surface (21) of the special-shaped tool (2) near the front side surface (22), and the connection portion where the front side wall of the groove (211) connects to the front side surface (22) gradually becomes thinner and extends upward to form the blade (23).

3. The metal profile chamfering device according to claim 1 or 2, characterized in that: The upper portion of the front side surface (22) of the special-shaped tool (2) is tilted downward.

4. The metal profile chamfering device according to claim 1, characterized in that: The top surface (21) of the special-shaped tool (2) is bent from the outside to the inside to form a concave arc surface.

5. The metal profile chamfering device according to claim 1 or 4, characterized in that: The special-shaped tool (2) has a first surface (24), the first surface (24) is located between the inner side of the top surface (21) and the inner side of the front side surface (22), and the first surface (24) is arranged to be inclined downward.

6. The metal profile chamfering device according to claim 5, characterized in that: The orthographic projection of the first surface (24) is a triangle.

7. The metal profile chamfering device according to claim 1, characterized in that: The limiting mechanism comprises an upper pressing wheel (3) and a lower pressing wheel (4), wherein the lower end of the upper pressing wheel (3) abuts against the upper surface of the metal profile (7), and the lower pressing wheel (4) abuts against the lower surface of the metal profile (7).

8. The metal profile chamfering device according to claim 7, characterized in that: The upper pressing wheel (3) and the lower pressing wheel (4) are staggered in front and back; Alternatively, the axis of the upper pressing wheel (3) and the axis of the lower pressing wheel (4) are located on the same vertical plane.

9. The metal profile chamfering device according to claim 7, characterized in that: A lifting mechanism (5) capable of driving the upper pressing wheel (3) to move up and down is provided above the upper pressing wheel (3).

10. The metal profile chamfering device according to claim 9, characterized in that: The lifting mechanism (5) comprises a connecting frame (51) and a cylinder (52) for driving the connecting frame (51) to lift and lower. The upper pressure wheel (3) is rotatably connected to the lower end of the connecting frame (51), and the piston rod of the cylinder (52) is connected to the upper end of the connecting frame (51).

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