Profile cutting equipment

Abstract

The present invention proposes a profile cutting device, comprising a cutting machine tool, a supporting mechanism and two groups of cutting components; one group of cutting components is arranged at one end of the cutting machine tool; the other group of cutting components can be slidably arranged on the cutting machine tool, and one end of this group of slidable cutting components is provided with a supporting mechanism; the cutting component includes a cutting device, a saw blade angle adjustment structure, a saw blade chip cleaning device and a protective structure; the saw blade angle adjustment structure includes a support seat, a rotating seat and a driver; the support seat can be slidably arranged on the cutting machine tool; the rotating seat can be rotatably arranged on the support seat; the cutting device is arranged on the rotating seat; under the drive of the driver, the rotating seat rotates, driving the cutting device to rotate, thereby adjusting the cutting angle of the saw blade of the cutting device; the present invention can realize the cutting operation of profiles with different cutting angle requirements, the overall structure is compact, and the volume space occupied is smaller.

Description

Technical Field

[0001] The present invention relates to the technical field of profile cutting, in particular to a profile cutting device. Background Art

[0002] Aluminum alloy profiles are currently the most widely used nonferrous metal structural material in industry, with extensive applications in aviation, aerospace, automotive, machinery manufacturing, shipbuilding, construction, decoration, and the chemical industry. With the rapid development of science and technology and the industrial economy in recent years, the production of aluminum alloy profiles has entered a highly industrialized production model. Aluminum alloy profiles often require a series of equipment operations such as cutting and packaging. Currently, the cutting process of profiles often requires adjusting the cutting angle to meet different cutting requirements. The angle adjustment structure of the current cutting saw blade is not compact and takes up a lot of installation space, resulting in a larger overall cutting device, which takes up a lot of space and is not conducive to assembly. Summary of the Invention

[0003] In view of the above-mentioned defects, the purpose of the present invention is to provide a profile cutting device to solve the problem that the saw blade adjustment structure in the prior art is not compact and occupies too much space.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A profile cutting device comprises a cutting machine, a supporting mechanism, and two sets of cutting assemblies; one set of the cutting assemblies is disposed at one end of the cutting machine; the other set of the cutting assemblies is slidably disposed on the cutting machine, and one end of the slidable cutting assemblies is provided with the supporting mechanism;

[0006] The cutting assembly includes a cutting device, a saw blade angle adjustment structure, a saw blade chip cleaning device and a protective structure; the saw blade angle adjustment structure includes a support base, a rotating base and a driver; the support base is slidably mounted on the cutting machine; the rotating base is rotatably mounted on the support base; the cutting device is mounted on the rotating base; under the drive of the driver, the rotating base rotates, driving the cutting device to rotate, thereby adjusting the cutting angle of the saw blade of the cutting device;

[0007] The profile supporting mechanism is arranged on one side of the cutting device to support the profile to be processed; the saw blade chip cleaning device is arranged on the periphery of the cutting device to suck out and clean the debris generated by the cutting device; the protective structure is arranged on one side of the cutting device to block the debris flying when the cutting device cuts the profile.

[0008] Preferably, a rotating shaft is respectively provided on the left and right sides of the rotating seat, and the two rotating shafts are rotatably connected to the two side support plates of the support seat respectively; a driving rod is provided on one side of the rotating seat, and the driving rod and the rotating shaft are respectively provided at the front and rear ends of the rotating seat; the driver is rotatably provided on one side of the support seat, and the driver is provided below the driving rod; one end of the driving rod is hingedly connected to the output end of the driver, and under the drive of the driver, the driving rod is driven to perform circular motion around the axis of the rotating shaft, thereby driving the rotating seat to perform rotational pitch motion around the rotating shaft.

[0009] Preferably, a guide groove is provided on one side of the support seat, and the guide groove is provided on one side of the rotating shaft. The guide groove is an arc-shaped groove, and the driving rod is limited in the guide groove; a horizontal sensing switch is provided on the upper end surface of the driving rod, and when the driving rod slides upward along the guide groove, the horizontal sensing switch will touch the upper inner wall of the guide groove.

[0010] Preferably, a drive mounting seat is provided on one side of the support seat, the drive mounting seat is provided with a clearance hole, and swing mounting blocks are provided on both sides of the bottom surface of the drive mounting seat. The driver is installed and fixed below the drive mounting seat, and the driver is arranged between the two swing mounting blocks. The output end of the driver passes through the clearance hole and is connected to the drive rod; and the two ends of the driver are rotatably connected to the two swing mounting blocks respectively.

[0011] Preferably, the saw blade chip cleaning device includes a saw blade drive housing, a saw blade partition, a chip cleaning cover and a cover plate; the saw blade partition is arranged inside the saw blade drive housing; the chip cleaning cover includes a sleeve cover and an arc cover; the sleeve cover is arranged at the upper end of the left side of the saw blade drive housing; the outer end of the sleeve cover is connected to the external vacuum exhaust equipment, the inner end of the sleeve cover is connected to one end of the arc cover, and the sleeve cover is connected to the interior of the arc cover; the other end of the arc cover extends along the bottom of the saw blade drive housing to the right side of the saw blade drive housing; the cover plate is arranged on one side of the arc cover, for sealing the arc cover, and the cover plate, saw blade partition and arc cover form a chip cleaning cavity.

[0012] Preferably, the arc cover includes a fan-shaped sleeve and an arc bottom plate; one side of the fan-shaped sleeve is connected to the sleeve cover; the arc bottom plate is arranged on the other side of the fan-shaped sleeve, and the arc bottom plate extends along the bottom of the saw blade drive housing to the right side of the saw blade drive housing; the arc bottom plate includes a rounded corner section and an enclosed section, the enclosed section is a straight plate, and the enclosed section is horizontally arranged at the bottom of the saw blade drive housing; the rounded corner section is an arc plate, one end of the rounded corner section is connected to the fan-shaped sleeve, and the other end of the rounded corner section is connected to one end of the enclosed section.

[0013] Preferably, the protective structure includes a support frame, a telescopic driving member, a rotating member, a rotating shaft seat, a driving rotating shaft, a driven rotating shaft, a driving connecting rod, a driven connecting rod and a protective cover; the rotating shaft seat is arranged on one side of the top of the support frame, the driving rotating shaft and the driven rotating shaft are rotatably arranged at the upper and lower ends of the rotating shaft seat respectively, and the axes of the driving rotating shaft and the driven rotating shaft are arranged in the same vertical plane;

[0014] The telescopic driving member is arranged at the top end of the supporting frame, the telescopic rod of the telescopic driving member is hingedly connected to one end of the rotating member, and the other end of the rotating member is fixedly connected to the driving rotating shaft; the driving connecting rod is fixedly provided at both ends of the driving rotating shaft, and the other end of the driving connecting rod is hingedly connected to the protective cover, and the driven connecting rod is fixedly provided at both ends of the driven rotating shaft, and the other end of the driven connecting rod is hingedly connected to the protective cover, and the two driving connecting rods and the two driven connecting rods are parallel to each other;

[0015] Driven by the telescopic drive member, the telescopic movement of the telescopic rod of the telescopic drive member drives the rotating member to rotate clockwise or counterclockwise around the axis of the driving shaft, driving the driving shaft to rotate clockwise or counterclockwise, thereby driving the protective cover to descend or rise.

[0016] Preferably, at least two rotating shaft seats are provided, the two ends of the driving rotating shaft and the driven rotating shaft are respectively provided on the two rotating shaft seats, and the rotating member is provided between the two rotating shaft seats; a connecting plate is fixedly provided on one side of the top end of the support frame, and two limiting grooves are provided on one side of the connecting plate, and the two rotating shaft seats are respectively fixed in the two limiting grooves.

[0017] Preferably, the profile supporting mechanism includes a supporting plate, a supporting mounting block, an extension rod and a supporting wheel; a plurality of the supporting mounting blocks are arranged on one side of the supporting plate, one side of the supporting mounting block is provided with the extension rod, and the outer end of the extension rod is rotatably provided with the supporting wheel; an upper locking groove and a lower locking groove are provided on one side of the supporting plate, and the upper locking groove and the lower locking groove are respectively provided at the upper and lower ends of the supporting plate, and the upper locking groove and the lower locking groove are parallel to each other; the supporting mounting block is provided with a first mounting hole and a second mounting hole, and the first mounting hole and the second mounting hole are respectively provided at The supporting mounting block has two ends; the first mounting hole and the second mounting hole are respectively provided with a first bolt and a second bolt; the first bolt passes through the first mounting hole and is inserted into the upper locking groove, and the first bolt can be slidably set in the upper locking groove, and the outer end of the first bolt is provided with a first locking nut for locking the sliding of the first bolt; the second bolt passes through the second mounting hole and is inserted into the upper locking groove, and the first bolt can be slidably set in the upper locking groove, and the outer end of the second bolt is provided with a second locking nut for locking the sliding of the second bolt.

[0018] Preferably, an upper nut groove and a lower nut groove are provided on the rear side of the support plate, the first locking nut can be slidably set in the upper nut groove, and one end of the first bolt can pass through the support plate and be threadedly connected to the first locking nut; the second locking nut can be slidably set in the lower nut groove, and one end of the second bolt is threadedly connected to the second locking nut.

[0019] One of the above technical solutions has the following advantages or beneficial effects:

[0020] The profile to be cut is placed on the supporting mechanism of the profile cutting equipment. The support seat of the saw blade adjustment structure is moved on the cutting machine to adjust the cutting position of the profile. The steering swing of the rotating seat is adjusted by the driver to control the cutting angle of the saw blade on the cutting device installed on the rotating seat. The cutting device extends the saw blade from the rotating seat to cut the profile, and the saw blade chip cleaning device sucks out and cleans the debris generated by the cutting. Compared with the existing technology, the overall structure is more compact, the saw blade adjustment structure occupies a smaller space volume, and the overall equipment has high cutting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of a supporting mechanism according to an embodiment of the present invention;

[0023] Figure 3This is a partially enlarged schematic diagram of a supporting mechanism in one embodiment of the present invention;

[0024] Figure 4 is a cross-sectional view of a supporting mechanism according to an embodiment of the present invention;

[0025] Figure 5 is a schematic diagram of a saw blade angle adjustment structure according to an embodiment of the present invention;

[0026] Figure 6 It is a partially enlarged schematic diagram of a saw blade angle adjustment structure according to an embodiment of the present invention;

[0027] Figure 7 is a schematic diagram of a saw blade chip cleaning device according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the internal structure of a saw blade chip cleaning device according to an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the internal structure of a saw blade cleaning device according to an embodiment of the present invention;

[0030] Figure 10 is a schematic diagram of a protective structure according to an embodiment of the present invention;

[0031] Figure 11 This is an enlarged schematic diagram of a partial structure of a protective structure in one embodiment of the present invention;

[0032] Figure 12 It is a side view of a protective structure according to an embodiment of the present invention.

[0033] Wherein: cutting machine 1, supporting mechanism 2, supporting plate 21, upper locking groove 211, lower locking groove 212, upper nut groove 213, lower nut groove 214, supporting mounting block 22, first mounting hole 221, second mounting hole 222, first bolt 223, second bolt 224, first locking nut 225, second locking nut 226, extension rod 23, supporting wheel 24, rotating sleeve 25, supporting bearing 26, clamping assembly 27, supporting plate 271, pressing mounting block 272, locking member 273, pressing roller 274, handle 275, adjusting slide 276, cutting device 3, saw blade angle adjustment structure 4, supporting seat 41, side supporting plate 411, guide groove 412, rotating seat 42, driving rod 43, driver 44, swing shaft 441 , rotating shaft 45, horizontal sensing switch 46, joint bearing 47, drive connecting seat 48, give way hole 481, swing mounting block 482, saw blade chip cleaning device 5, chip cleaning cavity 500, saw blade drive housing 51, saw blade partition 52, chip cleaning cover 53, sleeve cover 531, arc cover 532, fan-shaped sleeve 5a, arc bottom plate 5b, rounded section 5b1, enclosed section 5b2, connecting plate 533, cover plate 54, cleaning cover plate 55, protective structure 6, support frame 61, telescopic drive part 62, rotating part 63, hinged section 631, fixed section 632, rotating shaft seat 64, driving shaft 65, driven shaft 66, driving connecting rod 67, driven connecting rod 68, protective cover 69, connecting plate 610, limiting groove 6101, U-shaped part 611, driving mounting seat 612. DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions 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 direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish between the described features, without distinction of order or importance.

[0036] In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0038] The following combination Figures 1 to 12 A profile cutting device according to an embodiment of the present invention includes a cutting machine 1, a supporting mechanism 2, and two sets of cutting assemblies; one set of the cutting assemblies is disposed at one end of the cutting machine 1; the other set of the cutting assemblies is slidably disposed on the cutting machine 1, and the supporting mechanism 2 is disposed at one end of the slidable cutting assemblies.

[0039] The cutting assembly includes a cutting device 3, a saw blade angle adjustment structure 4, a saw blade chip cleaning device 5 and a protective structure 6; the saw blade angle adjustment structure 4 includes a support seat 41, a rotating seat 42 and a driver 44; the support seat 41 can be slidably set on the cutting machine 1; the rotating seat 42 can be rotatably set on the support seat 41; the cutting device 3 is set on the rotating seat 42; under the drive of the driver 44, the rotating seat 42 rotates, driving the cutting device 3 to rotate, thereby adjusting the cutting angle of the saw blade of the cutting device 3; the profile support mechanism 2 is arranged on one side of the cutting device 3, for supporting the profile to be processed; the saw blade chip cleaning device 5 is arranged on the outer periphery of the cutting device 3, for sucking out and cleaning the debris generated by the cutting of the cutting device 3; the protective structure 6 is arranged on one side of the cutting device 3, for blocking the debris flying when the cutting device 3 cuts the profile.

[0040] During the specific work, the profile to be cut is placed on the supporting mechanism of the profile cutting equipment, and then the support seat of the saw blade adjustment structure is moved on the cutting machine to adjust the cutting position of the profile, and then the driver drives the rotating seat to adjust the steering swing, thereby controlling the cutting angle of the saw blade on the cutting device installed on the rotating seat. Before cutting, the protective structure is lowered to prevent debris from flying when cutting the profile; then the cutting device extends the saw blade from the rotating seat to cut the profile placed on the supporting mechanism on one side of the cutting device. During the cutting, the saw blade chip cleaning device is started to suck out and clean the debris generated by the cutting. After the cutting is completed, the saw blade is retracted into the rotating seat, and the saw blade chip cleaning device continues to suck away the debris thrown out from the saw blade to improve the degree of debris cleaning; at this point, the entire cutting process of this cutting equipment is completed.

[0041] Furthermore, a rotating shaft 45 is respectively provided on the left and right sides of the rotating seat 42, and the two rotating shafts 45 are rotatably connected to the two side support plates 411 of the support seat 41; a driving rod 43 is provided on one side of the rotating seat 42, and the driving rod 43 and the rotating shaft 45 are respectively arranged at the front and rear ends of the rotating seat 42; the driver 44 is rotatably arranged on one side of the support seat 41, and the driver 44 is arranged below the driving rod 43; one end of the driving rod 43 is hingedly connected to the output end of the driver 44, and under the drive of the driver 44, the driving rod 43 is driven to perform a circular motion around the axis of the rotating shaft 45, thereby driving the rotating seat 42 to perform a rotational and pitching motion around the rotating shaft 45.

[0042] Specifically, the saw blade is fixedly mounted on the rotating seat 42, and the rotating seat 42 is connected to the support seat 41 through two rotating shafts 45, so that the rotating seat 42 can rotate around the axis of the rotating shaft 45. The driving rod 43 is mounted on one side of the rotating shaft 45, and the driving rod 43 and the rotating shaft 45 are parallel to each other. Under the drive of the driver 44, the driving rod 43 makes a circular motion in the axial direction of the rotating shaft 45, so that the driving rod 43 drives the rotating seat 42 to rotate and thus performs a pitching and swinging motion, thereby driving the inclination angle of the saw blade on the rotating seat 42 to change, thereby adjusting the cutting angle of the saw blade to meet the needs of cutting different profiles; the driver 44 of the angle adjustment device in the prior art is often installed horizontally or obliquely, which will occupy a large amount of horizontal space , resulting in an increase in the overall lateral area of the equipment and occupying a large amount of space; the driver 44 of the present application is closely attached to one side of the support base 41, and the driver 44 is vertically arranged. Compared with the prior art, the overall structure is more compact, the volume is smaller, and the space occupied is smaller, so it is more flexible during assembly; in addition, in the present application, the circular motion of the drive rod 43 in the axial direction of the rotating shaft 45 is an arc-shaped motion path, so the driver 44 is rotatably installed on one side of the support base 41, and the output end of the driver 44 is hingedly connected to the drive rod 43. Under the drive of the driver 44, the driver 44 can adapt to the circular motion of the drive rod 43 to rotate, thereby cooperating with the circular motion of the drive rod 43 to ensure the stable operation of the rotation movement of the rotating base 42.

[0043] Furthermore, a guide groove 412 is provided on one side of the support seat 41, and the guide groove 412 is provided on one side of the rotating shaft 45. The guide groove 412 is an arc-shaped groove, and the driving rod 43 is limited in the guide groove 412; a horizontal sensing switch 46 is provided on the upper end surface of the driving rod 43, and when the driving rod 43 slides upward along the guide groove 412, the horizontal sensing switch 46 will touch the upper inner wall of the guide groove 412.

[0044] Specifically, in this embodiment, the drive rod 43 is limited in the guide groove 412. Under the drive of the driver 44, the drive rod 43 moves along the guide groove 412. The guide groove 412 is configured to be arc-shaped corresponding to the movement path of the drive rod 43, so that the drive rod 43 can move smoothly in the guide groove 412, guiding and limiting the drive rod 43, improving the stability of the movement of the drive rod 43, and thus improving the stability of the movement of the rotating base 42. In this embodiment, a horizontal sensing switch 46 is provided at the upper end of the drive rod 43. In actual use, when the driver 44 drives the drive rod 43 to move, driving the rotating base 42 to move, when the rotating base 42 moves to a horizontal state and the saw blade of the cutting device 3 is in a vertical state, the horizontal sensing switch 46 will touch the upper inner wall of the guide groove 412, thereby triggering the horizontal sensing switch 46. The horizontal sensing switch 46 sends a signal to the control system of the driver 44, causing the driver 44 to stop driving, and the rotating base 42 remains horizontal and the saw blade remains vertical, ensuring the accuracy of the saw blade angle.

[0045] Furthermore, the driver 44 is a pneumatic cylinder, and one end of the piston rod of the driver 44 is provided with a spherical bearing 47, which is hingedly connected to the drive rod 43. Specifically, in this embodiment, the driver 44 is driven by a pneumatic cylinder, and the piston rod of the cylinder is hingedly connected to the drive rod 43 via the spherical bearing 47, ensuring that the drive rod 43 moves in a circular motion along the axis of the rotating shaft 45. When the piston rod is extended, the drive rod 43 performs a clockwise circular motion along the axis of the rotating shaft 45, and the rotating seat 42 performs a clockwise upward rotational motion. Conversely, when the piston rod is retracted, the drive rod 43 performs a counterclockwise circular motion along the axis of the rotating shaft 45, and the rotating seat 42 performs a counterclockwise downward rotational motion, thereby completing the adjustment of the saw blade angle.

[0046] Furthermore, a drive connecting seat 48 is provided on one side of the support seat 41, and the drive connecting seat 48 is provided with a clearance hole 481. The driver 44 is installed and fixed below the drive connecting seat 48, and the output end of the driver 44 passes through the clearance hole 481 and is connected to the drive rod 43.

[0047] Specifically, in this embodiment, the driver 44 is installed on one side of the support base 41 through the drive connecting base 48, and the drive connecting base 48 is located below the drive rod 43. After the driver 44 is installed and fixed, the output end of the driver 44 passes through the clearance hole 481, thereby driving the drive rod 43, thereby improving the compactness of the overall structure.

[0048] Furthermore, swing mounting blocks 482 are provided on both sides of the bottom surface of the drive connection base 48. The driver 44 is disposed between the two swing mounting blocks 482, and the two ends of the driver 44 are rotatably connected to the two swing mounting blocks 482. Specifically, in this embodiment, the two ends of the driver 44 are respectively mounted on the two swing mounting blocks 482, and the driver 44 is rotatably connected to the swing mounting blocks 482. This ensures that the driver 44 can adaptively rotate when driving the drive rod 43 to move, thereby ensuring the stable rotation of the rotating base 42.

[0049] Furthermore, a swing shaft 441 is provided at one end of the driver 44, and the two ends of the swing shaft 441 are respectively connected to the two swing mounting blocks 482 via bearings. Specifically, in this embodiment, the driver 44 is provided with a swing shaft 441, and the two ends of the swing shaft 441 are provided to protrude from the side of the driver 44. The swing mounting blocks 482 are fixed with bearings. During installation, the swing shaft 441 is inserted into the bearings, thereby achieving a rotational connection between the swing shaft 441 and the swing mounting blocks 482, and moving more smoothly.

[0050] The profile supporting mechanism 2 includes a supporting plate 21, a supporting mounting block 22, an extension rod 23 and a supporting wheel 24; a plurality of the supporting mounting blocks 22 are arranged on one side of the supporting plate 21, and the extension rod 23 is provided on one side of the supporting mounting block 22, and the outer end of the extension rod 23 is rotatably provided with the supporting wheel 24; an upper locking groove 211 and a lower locking groove 212 are provided on one side of the supporting plate 21, and the upper locking groove 211 and the lower locking groove 212 are respectively provided at the upper and lower ends of the supporting plate 21, and the upper locking groove 211 and the lower locking groove 212 are parallel to each other; the supporting mounting block 22 is provided with a first mounting hole 221 and a second mounting hole 222, and the first mounting hole 221 and the second mounting hole 222 are respectively provided on the supporting mounting block Both ends of the mounting block 22; the first mounting hole 221 and the second mounting hole 222 are respectively provided with a first bolt 223 and a second bolt 224; the first bolt 223 passes through the first mounting hole 221 and is inserted into the upper locking groove 211, and the first bolt 223 can be slidably set in the upper locking groove 211, and the outer end of the first bolt 223 is provided with a first locking nut 225 for locking the sliding of the first bolt 223; the second bolt 224 passes through the second mounting hole 222 and is inserted into the upper locking groove 211, and the first bolt 223 can be slidably set in the upper locking groove 211, and the outer end of the second bolt 224 is provided with a second locking nut 226 for locking the sliding of the second bolt 224.

[0051] Specifically, in the assembly of this embodiment, the supporting wheel 24 is first installed on the extension rod 23, and then the extension rod 23 is installed on the supporting mounting block 22. When the supporting mounting block 22 is installed on the front side of the supporting plate 21, specifically, the installation position of the supporting mounting block 22 determines the position of the supporting wheel 24. When installing the supporting mounting block 22, the first bolt 223 is passed through the first mounting hole 221 of the supporting mounting block 22 and inserted into the upper locking groove 211. Similarly, the second bolt 224 is passed through the second mounting hole 222 of the supporting mounting block 22 and inserted into the lower locking groove 212. The first bolt 223 and the second bolt 224 both pass through the rear side of the supporting plate 21. At this time, the supporting mounting block 22 can slide along the direction of the upper locking groove 211 , the position of the supporting wheel 24 can be determined. After the position is determined, the first locking nut 225 and the second locking nut 226 are respectively installed on the first bolt 223 and the second bolt 224 on the rear side of the supporting plate 21. The bolts are locked by using the first locking nut 225 and the second locking nut 226. The first bolt 223 and the second bolt 224 fix the supporting mounting block 22, and the position of the supporting mounting block 22 can be locked. The assembly operation is simple and convenient, and it is easy to adjust the different positions of multiple supporting wheels 24 to ensure the supporting effect of profiles of different lengths; the profiles are supported by supporting wheels 24 at different intervals. When the profiles are pushed forward for transportation, the supporting wheels 24 rotate relative to the extension rod 23, reducing friction with the profiles and effectively improving the smoothness of transportation.

[0052] Furthermore, an upper nut groove 213 and a lower nut groove 214 are provided on the rear side of the support plate 21, and the first locking nut 225 can be slidably set in the upper nut groove 213, and one end of the first bolt 223 can pass through the support plate 21 and be threadedly connected to the first locking nut 225; the second locking nut 226 can be slidably set in the lower nut groove 214, and one end of the second bolt 224 is threadedly connected to the second locking nut 226.

[0053] Specifically, in this embodiment, the first locking nut 225 can be slidably set in the upper nut groove 213 but cannot rotate, and the second locking nut 226 can be slidably set in the lower nut groove 214 and cannot rotate. When installing the support mounting block 22, before the first bolt 223 passes through the support plate 21, the first locking nut 225 is first slid to the back of the first bolt 223, and the first bolt 223 is directly inserted into the threaded hole of the first locking nut 225 after passing through the support plate 21. Only the first bolt 223 needs to be screwed for threaded connection to lock and fix the support mounting block 22. The connection of the second bolt 224 and the second locking nut 226 is operated in the same way. Only the first bolt 223 and the second bolt 224 need to be screwed to complete the installation, which is more convenient and simple to operate.

[0054] Furthermore, the first mounting hole 221 is configured as an oblong hole, and the first bolt 223 is slidably disposed in the oblong hole. Specifically, in this embodiment, the first mounting hole 221 is configured as an oblong hole. When installing the support mounting block 22, the first bolt 223 and the second bolt 224 are pre-installed. Without being locked, the support mounting block 22 can rotate around the axis of the second bolt 224, and the first bolt 223 slides relatively in the oblong hole. Therefore, the angle of the support mounting block 22 can be adjusted according to actual needs, thereby changing the supporting height of the supporting wheel 24. After determining the angle, the first bolt 223 and the second bolt 224 are locked to fix the angle of the support mounting block 22 and the height of the supporting wheel 24. The height of the supporting wheel 24 can be adjusted as needed to adapt to profiles of different thicknesses, with higher adaptability.

[0055] Furthermore, the extension rod 23 is externally sleeved with a rotating sleeve 25, which is rotatably connected to the extension rod 23. The supporting wheel 24 is sleeved on the rotating sleeve 25 and fixedly connected to the rotating sleeve 25. Specifically, in this embodiment, the supporting wheel 24 is fixed to the rotating sleeve 25 and then rotates relative to the extension rod 23 using the rotating sleeve 25. The long-distance connection between the rotating sleeve 25 and the extension rod 23 makes the rotation of the rotating sleeve 25 more stable, and the weight of the profile is evenly distributed on the extension rod 23, making the support safer and more stable.

[0056] Furthermore, the rotating sleeve 25 is connected to the extension rod 23 via a support bearing 26. Two support bearings 26 are provided, one at each end of the extension rod 23. Specifically, in this embodiment, the rotating sleeve 25 is connected to the extension rod 23 via the support bearings 26, which can improve the smoothness of the rotational movement of the rotating sleeve 25 and the extension rod 23, ensuring that the profile can be smoothly conveyed forward when the support wheel 24 supports the profile. The provision of two support bearings 26 is conducive to improving the stability of the connection between the rotating sleeve 25 and the extension rod 23.

[0057] Furthermore, a clamping assembly 27 is provided on one side of the support plate 21, and the clamping assembly 27 includes a support plate 271, a clamping mounting block 272, a locking member 273 and a clamping roller 274; the support plate 271 is arranged on the upper end surface of the support plate 21; the clamping mounting block 272 is vertically arranged on one side of the support plate 271; the clamping roller 274 is vertically arranged on one side of the clamping mounting block 272; the locking member 273 is used to fix the clamping mounting block 272 to one side of the support plate 21.

[0058] Specifically, during installation of this embodiment, the support plate 271 is directly installed on the upper end surface of the support plate 21, and then the clamping mounting block 272 fixed with the clamping roller 274 is installed on the side of the support plate 21, and the clamping roller 274 is located directly above the support plate 271. After determining the position, the locking member 273 is used to connect the clamping mounting block 272 and the support plate 21. When the profile passes through the clamping assembly 27, the clamping roller 274 can be used to clamp the profile on the support plate 271, thereby maintaining the stability of the profile when it is transported forward.

[0059] Furthermore, a handle 275 is provided on the outer end of the locking member 273. Specifically, in this embodiment, the handle 275 is provided on the outer end of the locking member 273. When locking the pressing mounting block 272 to the side of the supporting plate 21, the locking or releasing operation can be completed by simply grasping the handle 275 and rotating the locking member 273, which is more labor-saving and convenient.

[0060] Furthermore, the pressing mounting block 272 is vertically provided with an adjustment slot 276, and the locking member 273 is disposed in the adjustment slot 276. The locking member 273 can pass through the adjustment slot 276 and be connected to the support plate 21. Specifically, in this embodiment, when the pressing mounting block 272 is locked to the side of the support plate 21, the pressing member passes through the adjustment slot 276 and is connected to the support plate 21. Before the pressing member is locked, the pressing mounting block 272 can be moved up and down, and the locking member 273 slides relatively in the adjustment slot 276, thereby adjusting the height of the pressing roller 274. This can adapt to profiles of different heights, ensure the pressing effect on the profiles, and provide greater adaptability.

[0061] The saw blade chip cleaning device 5 includes a saw blade drive housing 51, a saw blade partition 52, a chip cleaning cover 53 and a cover plate 54; the saw blade partition 52 is arranged inside the saw blade drive housing 51; the chip cleaning cover 53 includes a sleeve cover 531 and an arc cover 532; the sleeve cover 531 is arranged at the upper end of the left side of the saw blade drive housing 51; the outer end of the sleeve cover 531 is connected to the external vacuum exhaust equipment, the inner end of the sleeve cover 531 is connected to one end of the arc cover 532, and the sleeve cover 531 is connected to the interior of the arc cover 532; the other end of the arc cover 532 extends along the bottom of the saw blade drive housing 51 to the right side of the saw blade drive housing 51; the cover plate 54 is arranged on one side of the arc cover 532, for sealing the arc cover 532, and the cover plate 54, the saw blade partition 52 and the arc cover 532 form a chip cleaning cavity 500.

[0062] Specifically, in this embodiment, the cover plate 54, the saw blade partition plate 52 and the arc cover 532 form a chip cleaning cavity 500. The driving device and the saw blade of the cutting device are installed inside the saw blade drive housing 51. The saw blade partition plate 52 separates the driving device and the saw blade. The saw blade is located in the chip cleaning cavity 500. A saw blade slot is provided on the right side of the saw blade drive housing 51. Under the drive of the driving device, the saw blade extends from the saw blade slot to cut the profile. During cutting, debris is generated and attached to the saw blade. When the saw blade rotates, it is thrown into the chip cleaning cavity 500. 0, in addition, when the saw blade is retracted into the chip cleaning cavity 500, the debris will also fall into the chip cleaning cavity 500. When the debris falls in the chip cleaning cavity 500, it will fall on the bottom surface of the arc cover 532 and will not fall on the ground or other parts, which can help to collect the debris. Under the drive of the external vacuum exhaust equipment, the debris in the chip cleaning cover 53 is sucked out and the debris is drawn away for centralized treatment. Compared with the existing technology, it can avoid the debris falling from under the saw blade and causing environmental pollution and other problems, and effectively improve the chip cleaning effect.

[0063] Furthermore, the arc cover 532 includes a sector sleeve 5a and an arc bottom plate 5b; one side of the sector sleeve 5a is connected to the sleeve cover 531; the arc bottom plate 5b is disposed on the other side of the sector sleeve 5a, and the arc bottom plate 5b extends along the bottom of the saw blade drive housing 51 to the right side of the saw blade drive housing 51. Specifically, in this embodiment, the sector sleeve 5a is connected to the sleeve cover 531, and the debris extracted by the exhaust device enters the sector sleeve 5a along the arc surface of the arc bottom plate 5b, then enters the sleeve cover 531, and then enters the exhaust device for collection. The movement of the debris slides along the arc surface of the arc bottom plate 5b, which can avoid the problem of debris getting stuck and unable to be sucked up, thereby improving the effect of debris cleaning.

[0064] Furthermore, the arc bottom plate 5b includes a rounded corner section 5b1 and an enclosed section 5b2, the enclosed section 5b2 is a straight plate, and the enclosed section 5b2 is horizontally arranged at the bottom of the saw blade drive housing 51; the rounded corner section 5b1 is an arc plate, one end of the rounded corner section 5b1 is connected to the fan-shaped sleeve 5a, and the other end of the rounded corner section 5b1 is connected to one end of the enclosed section 5b2.

[0065] Specifically, in this embodiment, the enclosed section 5b2 can ensure the airtightness of the chip cleaning cavity 500. When the debris falls on the arc bottom plate 5b, the debris enters the surface of the rounded section 5b1 along the enclosed section 5b2 under the suction action of the exhaust equipment, and then enters along the arc surface of the rounded section 5b1, and then enters the fan-shaped sleeve 5a and the sleeve cover 531, which is conducive to improving the smoothness of debris cleaning and avoiding the problem of debris getting stuck in the chip cleaning cavity 500 and unable to be collected.

[0066] Furthermore, the arc radius of the rounded corner section 5b1 is between 27 cm and 30 cm. The arc radius of the rounded corner section 5b1 is between 27 cm and 30 cm, which can adapt to most saw blades on the market, avoiding collision with the saw blade while ensuring the effect of debris collection.

[0067] Furthermore, a cleaning cover 55 is detachably provided below the cover 54 and is located on one side of the enclosed section 5b2. Specifically, in this embodiment, when excessive debris remains on the surface of the arc bottom plate 5b, preventing the exhaust device from suctioning and cleaning it, the cleaning cover 55 can be opened to clean the debris from the surface of the enclosed section 5b2, thereby improving the debris cleaning effect.

[0068] Furthermore, the sleeve cover 531 is configured as a circular tube; the two end openings of the sector-shaped sleeve 5a are respectively a large-diameter opening and a small-diameter opening; the sleeve cover 531 is connected to one end of the small-diameter opening, and the arc bottom plate 5b is connected to one end of the large-diameter opening. Specifically, in this embodiment, the large-diameter opening of the sector-shaped sleeve 5a can collect more debris, while the small-diameter opening has a greater wind pressure, allowing the sleeve cover 531 to more efficiently suction the debris. The sleeve cover 531 is configured as a circular tube, which can be connected to commercially available circular tubes, thereby improving the adaptability of the device.

[0069] Furthermore, a connecting plate 533 is provided on the side of the arc cover 532, and the connecting plate 533 is detachably connected to the saw blade partition 52. Specifically, in this embodiment, the connecting plate 533 is provided on the side of the arc cover 532 and is parallel to the saw blade partition 52. The connecting plate 533 can be installed on the saw blade partition 52 by bolts, thereby fixing the arc cover 532. The operation is simple and convenient, and disassembly and cleaning are also more convenient.

[0070] The protective structure 6 includes a support frame 61, a telescopic driving member 62, a rotating member 63, a rotating shaft seat 64, a driving rotating shaft 65, a driven rotating shaft 66, a driving connecting rod 67, a driven connecting rod 68 and a protective cover 69; the rotating shaft seat 64 is arranged on one side of the top of the support frame 61, and the driving rotating shaft 65 and the driven rotating shaft 66 are rotatably arranged at the upper and lower ends of the rotating shaft seat 64, and the axes of the driving rotating shaft 65 and the driven rotating shaft 66 are arranged in the same vertical plane; the telescopic driving member 62 is arranged at the top of the support frame 61, and the telescopic rod of the telescopic driving member 62 is hingedly connected to one end of the rotating member 63, and the other end of the rotating member 63 is fixedly connected to the driving rotating shaft 65; The driving links 67 are fixedly provided at both ends of the driving shaft 65, and the other end of the driving links 67 is hingedly connected to the protective cover 69. The driven links 68 are fixedly provided at both ends of the driven shaft 66, and the other end of the driven links 68 is hingedly connected to the protective cover 69, and the two driving links 67 and the two driven links 68 are parallel to each other; under the drive of the telescopic driving member 62, the telescopic movement of the telescopic rod of the telescopic driving member 62 drives the rotating member 63 to rotate clockwise or counterclockwise around the axis of the driving shaft 65, driving the driving shaft 65 to rotate clockwise or counterclockwise, thereby driving the protective cover 69 to descend or rise.

[0071] Specifically, in specific operation, when the telescopic rod of the telescopic driving member 62 is extended, the rotating member 63 is driven to rotate clockwise around the axis of the driving shaft 65, driving the driving shaft 65 to rotate clockwise, thereby driving the protective cover 69 to descend; conversely, when the telescopic rod of the telescopic driving member 62 is retracted, the rotating member 63 is driven to rotate counterclockwise around the axis of the driving shaft 65, driving the driving shaft 65 to rotate counterclockwise, thereby driving the protective cover 69 to rise. In this process, the protective cover 69 and the driven connecting rod 68 rotate relative to each other, and at the same time drive the driven shaft 66 at the other end of the driven connecting rod 68 to rotate on the shaft seat 64; the shaft seat 64, the driving connecting rod 67, and the driven connecting rod 68 rotate on the shaft seat 64; 8 and the protective cover 69 form a parallelogram-like connecting rod structure, the driving connecting rod 67 is parallel to the driven connecting rod 68, the protective cover 69 is parallel to the rotating shaft seat 64, and the axes of the driving rotating shaft 65 and the driven rotating shaft 66 are set in the same vertical plane. Therefore, during the lifting or lowering of the protective cover 69, the protective cover 69 can always remain in a vertical state, avoiding the problem of the protective cover 69 flipping over and hitting people when it is opened, which poses a safety hazard; a driving connecting rod 67 and a driven connecting rod 68 are respectively provided at both ends of the protective cover 69 for connection. When the protective cover 69 is driven to lift or lower, the driving force acts on the two ends of the protective cover 69, which is beneficial to improve the stability of the two ends of the protective cover 69 when it moves.

[0072] Furthermore, at least two rotating shaft seats 64 are provided, and the two ends of the driving rotating shaft 65 and the driven rotating shaft 66 are respectively provided on the two rotating shaft seats 64, and the rotating member 63 is provided between the two rotating shaft seats 64. Specifically, in this embodiment, two rotating shaft seats 64 are provided, and the two ends of the driving rotating shaft 65 are respectively mounted on the two rotating shaft seats 64, and the two ends of the driving rotating shaft 65 are respectively connected to the rotating shaft seats 64 for rotation. Similarly, the driven rotating shaft 66 is installed directly below the driving rotating shaft 65, and the two ends of the driven rotating shaft 66 are respectively connected to the rotating shaft seats 64 for rotation. The two rotating shaft seats 64 effectively improve the balance and stability of the driving rotating shaft 65 and the driven rotating shaft 66. Bearings can be installed in the rotating shaft seats 64, and the driving rotating shaft 65 and the driven rotating shaft 66 are mounted on the rotating shaft seats 64 through the bearings, thereby improving the smoothness and stability of the movement of the driving rotating shaft 65 and the driven rotating shaft 66.

[0073] Furthermore, a connecting plate 610 is fixedly provided on one side of the top of the support frame 61. Two limiting grooves 6101 are provided on one side of the connecting plate 610. The two rotating shaft seats 64 are respectively fixedly provided in the two limiting grooves 6101. Specifically, in this embodiment, the limiting grooves 6101 of the connecting plate 610 have the same width as the rotating shaft seat 64. When the rotating shaft seat 64 is installed in the limiting grooves 6101, the side walls of the limiting grooves 6101 limit the rotating shaft seat 64, thereby avoiding the problem of deviation in the rotation or movement of the rotating shaft seat 64 and improving the stability of the driving rotating shaft 65 and the driven rotating shaft 66. The rotating shaft seat 64 can be installed in the limiting grooves 6101 by means of bolts or the like.

[0074] Furthermore, the rotating member 63 includes a hinged section 631 and a fixed section 632. One end of the hinged section 631 is hingedly connected to the telescopic rod of the telescopic drive member 62, and the other end is connected to the fixed section 632. The hinged section 631 is perpendicular to the fixed section 632, and the other end of the fixed section 632 is fixedly connected to the drive shaft 65. Specifically, in this embodiment, the hinged section 631 and the fixed section 632 of the rotating member 63 are perpendicular to each other, so that the cross-section of the rotating member 63 is L-shaped. During the telescopic movement of the telescopic rod of the telescopic drive member 62, the telescopic rod pulls or pushes one end of the hinged section 631, causing the telescopic rod and the hinged section 631 to rotate relative to each other. The hinged section 631 and the fixed section 632 rotate about the axis of the drive shaft 65, thereby achieving rotation of the drive shaft 65. The rotating member 63 increases the rotation angle of the drive shaft 65 and increases the travel distance of the protective cover 69.

[0075] Furthermore, a U-shaped member 611 is provided at the output end of the telescopic rod of the telescopic drive member 62. The U-shaped member 611 is sleeved on both sides of the hinge section 631 and is hingedly connected to the hinge section 631 via a hinge axis. Specifically, in this embodiment, the U-shaped member 611 has a U-shaped cross-section. The bottom surface of the U-shaped member 611 is fixed to the telescopic end of the telescopic drive member 62. The two side surfaces of the U-shaped member 611 sleeve on both sides of the hinge section 631. The two side surfaces of the U-shaped member 611 and the hinge section 631 are respectively provided with hinge holes. During installation, the hinge axis is passed through the hinge holes, thereby achieving a hinged connection between the U-shaped member 611 and the hinge section 631, and the connection is secure and stable.

[0076] Furthermore, the telescopic drive member 62 is a pneumatic cylinder, the piston rod of which is hingedly connected to the rotating member 63. Specifically, in this embodiment, the telescopic drive member 62 is driven by a pneumatic cylinder. The piston rod of the pneumatic cylinder is pneumatically controlled to extend or retract, thereby driving the movement of the rotating member 63 and the rotation of the drive shaft 65, resulting in rapid response and stable transmission.

[0077] Furthermore, a driving mounting seat 612 is provided at the top of the support frame 61 , the fixed end of the telescopic driving member 62 is hingedly connected to the driving mounting seat 612 , and the telescopic end of the telescopic driving member 62 is hingedly connected to the rotating member 63 .

[0078] Specifically, in this embodiment, when the telescopic drive member 62 drives the telescopic rod to extend and retract, causing the rotating member 63 to rotate, if one wants to increase the rotation angle of the drive shaft 65, the telescopic end of the telescopic drive member 62 will limit the rotation of the rotating member 63. Therefore, the fixed end of the telescopic drive member 62 is hingedly connected to the drive mounting seat 612, which can release the angle restriction of the telescopic drive member 62, allowing the rotating member 63 to rotate at a large angle, thereby increasing the travel distance of the protective plate and ensuring the safe and reliable operation of the protective cover 69.

[0079] Furthermore, the vertical cross-section of the support frame 61 is C-shaped. Specifically, in this embodiment, the support frame 61 is configured in a C-shape. When installed on the cutting mechanism, the recessed space of the C-shape can be used to avoid the cutting mechanism, and the protective cover 69 can be installed directly above the cutting mechanism, thereby ensuring the protection of the cutting mechanism.

[0080] Other structures and operations of a profile cutting device according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0081] Throughout this specification, reference to terms such as "embodiment" or "example" indicates that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0082] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A profile cutting device, characterized in that: The invention comprises a cutting machine, a supporting mechanism and two groups of cutting assemblies; one group of the cutting assemblies is arranged at one end of the cutting machine; the other group of the cutting assemblies is slidably arranged on the cutting machine, and one end of the slidable cutting assemblies is provided with the supporting mechanism; The cutting assembly includes a cutting device, a saw blade angle adjustment structure, a saw blade chip cleaning device and a protective structure; the saw blade angle adjustment structure includes a support seat, a rotating seat and a driver; the support seat is slidably arranged on the cutting machine; the rotating seat is rotatably arranged on the support seat; the cutting device is arranged on the rotating seat; Under the drive of the driver, the rotating seat rotates, driving the cutting device to rotate, thereby adjusting the cutting angle of the saw blade of the cutting device; The supporting mechanism is provided on one side of the cutting device for supporting the profile to be processed; the saw blade chip cleaning device is provided on the periphery of the cutting device for sucking out and cleaning the chips generated by the cutting device; the protective structure is provided on one side of the cutting device for blocking the chips flying when the cutting device cuts the profile; The saw blade chip cleaning device includes a saw blade drive housing, a saw blade partition, a chip cleaning cover and a cover plate; the saw blade partition is arranged inside the saw blade drive housing; the chip cleaning cover includes a sleeve cover and a circular arc cover; the sleeve cover is arranged at the upper end of the left side of the saw blade drive housing; the outer end of the sleeve cover is connected to an external vacuum exhaust device, the inner end of the sleeve cover is connected to one end of the circular arc cover, and the sleeve cover is communicated with the interior of the circular arc cover; the other end of the circular arc cover extends along the bottom of the saw blade drive housing to the right side of the saw blade drive housing; The cover plate is arranged on one side of the arc cover and is used to cover the arc cover. The cover plate, the saw blade partition and the arc cover form a chip cleaning cavity. The driving device of the cutting device and the saw blade are installed inside the saw blade driving housing. The saw blade partition separates the driving device and the saw blade. The saw blade is located in the chip cleaning cavity. A saw blade slot is provided on the right side of the saw blade driving housing. Under the drive of the driving device, the saw blade extends out of the saw blade slot. The driver is closely attached to one side of the support base and is vertically arranged; A driving rod is provided on one side of the rotating seat; the driver is rotatably provided on one side of the supporting seat, and the driver is provided below the driving rod; one end of the driving rod is hingedly connected to the output end of the driver.

2. The profile cutting device according to claim 1, characterized in that: A rotating shaft is provided on the left and right sides of the rotating seat respectively, and the two rotating shafts are rotatably connected to the two side support plates of the support seat respectively; the driving rod and the rotating shaft are respectively provided at the front and rear ends of the rotating seat; under the drive of the driver, the driving rod is driven to perform circular motion around the axis of the rotating shaft, thereby driving the rotating seat to perform rotational and pitching motion around the rotating shaft.

3. The profile cutting device according to claim 2, characterized in that: A guide groove is provided on one side of the support seat, and the guide groove is provided on one side of the rotating shaft. The guide groove is an arc-shaped groove, and the driving rod is limited in the guide groove; a horizontal sensing switch is provided on the upper end surface of the driving rod, and when the driving rod slides upward along the guide groove, the horizontal sensing switch will touch the upper inner wall of the guide groove.

4. The profile cutting device according to claim 2, characterized in that: A drive mounting seat is provided on one side of the support seat, and a clearance hole is provided on the drive mounting seat. Swing mounting blocks are provided on both sides of the bottom surface of the drive mounting seat. The driver is provided between the two swing mounting blocks, and the output end of the driver passes through the clearance hole and is connected to the drive rod; and the two ends of the driver are rotatably connected to the two swing mounting blocks respectively.

5. The profile cutting device according to claim 1, characterized in that: The arc cover includes a fan-shaped sleeve and an arc bottom plate; one side of the fan-shaped sleeve is connected to the sleeve cover; the arc bottom plate is arranged on the other side of the fan-shaped sleeve, and the arc bottom plate extends along the bottom of the saw blade drive housing to the right side of the saw blade drive housing; the arc bottom plate includes a rounded corner section and an enclosed section, the enclosed section is a straight plate, and the enclosed section is horizontally arranged at the bottom of the saw blade drive housing; the rounded corner section is an arc plate, one end of the rounded corner section is connected to the fan-shaped sleeve, and the other end of the rounded corner section is connected to one end of the enclosed section.

6. The profile cutting device according to claim 1, characterized in that: The protective structure includes a support frame, a telescopic driving member, a rotating member, a rotating shaft seat, a driving rotating shaft, a driven rotating shaft, a driving connecting rod, a driven connecting rod and a protective cover; the rotating shaft seat is arranged on one side of the top of the support frame, and the driving rotating shaft and the driven rotating shaft are rotatably arranged at the upper and lower ends of the rotating shaft seat respectively, and the axes of the driving rotating shaft and the driven rotating shaft are arranged in the same vertical plane; The telescopic driving member is arranged at the top end of the supporting frame, the telescopic rod of the telescopic driving member is hingedly connected to one end of the rotating member, and the other end of the rotating member is fixedly connected to the driving rotating shaft; the driving connecting rod is fixedly provided at both ends of the driving rotating shaft, and the other end of the driving connecting rod is hingedly connected to the protective cover, and the driven connecting rod is fixedly provided at both ends of the driven rotating shaft, and the other end of the driven connecting rod is hingedly connected to the protective cover, and the two driving connecting rods and the two driven connecting rods are parallel to each other; Driven by the telescopic drive member, the telescopic movement of the telescopic rod of the telescopic drive member drives the rotating member to rotate clockwise or counterclockwise around the axis of the driving shaft, driving the driving shaft to rotate clockwise or counterclockwise, thereby driving the protective cover to descend or rise.

7. The profile cutting device according to claim 6, characterized in that: At least two rotating shaft seats are provided, and the two ends of the driving rotating shaft and the driven rotating shaft are respectively provided on the two rotating shaft seats, and the rotating member is provided between the two rotating shaft seats; a connecting plate is fixedly provided on one side of the top end of the supporting frame, and two limiting grooves are provided on one side of the connecting plate, and the two rotating shaft seats are respectively fixed in the two limiting grooves.

8. The profile cutting device according to claim 1, characterized in that: The supporting mechanism comprises a supporting plate, a supporting mounting block, an extension rod and a supporting wheel; a plurality of the supporting mounting blocks are arranged on one side of the supporting plate, one side of the supporting mounting block is provided with the extension rod, and the outer end of the extension rod is rotatably provided with the supporting wheel; an upper locking groove and a lower locking groove are provided on one side of the supporting plate, and the upper locking groove and the lower locking groove are respectively provided at the upper and lower ends of the supporting plate, and the upper locking groove and the lower locking groove are parallel to each other; the supporting mounting block is provided with a first mounting hole and a second mounting hole, and the first mounting hole and the second mounting hole are respectively provided on the supporting The support mounting block has two ends; the first mounting hole and the second mounting hole are respectively provided with a first bolt and a second bolt; the first bolt passes through the first mounting hole and is inserted into the upper locking groove, and the first bolt can be slidably set in the upper locking groove, and the outer end of the first bolt is provided with a first locking nut for locking the sliding of the first bolt; the second bolt passes through the second mounting hole and is inserted into the upper locking groove, and the first bolt can be slidably set in the upper locking groove, and the outer end of the second bolt is provided with a second locking nut for locking the sliding of the second bolt.

9. The profile cutting device according to claim 8, characterized in that: An upper nut groove and a lower nut groove are provided on the rear side of the support plate. The first locking nut can be slidably set in the upper nut groove, and one end of the first bolt can pass through the support plate and be threadedly connected to the first locking nut; the second locking nut can be slidably set in the lower nut groove, and one end of the second bolt is threadedly connected to the second locking nut.

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