Multi-angle profile cutting device

Abstract

The application is a multi-angle profile cutting device, belonging to the profile cutting equipment field. The technical scheme is a multi-angle profile cutting device, comprising a rack, a workbench and a plurality of sawing mechanisms arranged on the rack; the workbench is provided with retractable positioning mechanisms along at least three clamping directions; the number of the sawing mechanisms corresponds to the number of the clamping directions, the sawing mechanism comprises a machine head driving device and a sawing machine head, the sawing machine head is respectively provided with a saw blade, and the planes where the plurality of saw blades are located are perpendicular to the workbench and respectively parallel to the clamping directions of the plurality of retractable positioning mechanisms. The beneficial effects of the application are that a plurality of angle retractable positioning mechanisms are arranged, different positioning mechanisms are selected to clamp the profile according to the end angle of the profile, the end of the profile is cut through the corresponding angle saw blade, the continuous end cutting can be realized in cooperation with the profile conveying equipment, the profile direction does not need to be adjusted, the processing efficiency is improved, and the material waste caused by the secondary processing of the end is reduced.

Description

Technical Field

[0001] This invention relates to the field of profile cutting equipment, and in particular to a multi-angle profile cutting device. Background Technology

[0002] Profiles are widely used in the door and window industry. Depending on the assembly method, the two ends of the profile need to be cut at different angles, such as... Figure 12 As shown, the profile is cut vertically at both ends and can be used as a middle beam; for example... Figure 13 As shown, the profile has two 45-degree chamfers at both ends with different directions, which can be assembled into a square frame; as... Figure 14 As shown, the two ends of the profile are cut at 45-degree angles in the same direction, which can form a frame with continuous turns; at the same time, the three end angles can also be freely combined, and various profiles can also be freely combined.

[0003] Currently, the cutting of profile ends still requires the use of angle limiters and electric saws for manual secondary cutting of pre-cut rough material. This results in waste material at both ends that cannot be used, causing significant waste. In addition, manual cutting is inefficient and has poor precision. Furthermore, the large turning range during profile turning poses spatial interference and safety hazards. Summary of the Invention

[0004] This invention addresses the problem that current profile cutting methods require manual secondary cutting of raw materials at both ends, resulting in waste and low efficiency. It provides a multi-angle profile cutting device that can directly achieve multi-angle cutting at both ends of the profile during the profile production process by conveying the profile along with it.

[0005] To address the aforementioned problems, the present invention provides a multi-angle profile cutting device, comprising a frame, a worktable, and multiple sawing mechanisms. The worktable is equipped with telescopic positioning mechanisms along at least three clamping directions. The number of sawing mechanisms corresponds to the number of clamping directions. Each sawing mechanism includes a head drive device and a sawing head. The sawing head is mounted on a moving component of the head drive device, and saw blades are mounted on the sawing head. The planes of the saw blades are perpendicular to the worktable and parallel to the clamping directions of the telescopic positioning mechanisms. The worktable has notches through which the saw blades pass. The cutting device, equipped with multiple telescopic positioning mechanisms at various angles, allows for the selection of different positioning mechanisms to clamp the profile at different angles. Cutting of the profile end is achieved through saw blades at corresponding angles. Combined with profile conveying equipment on a production line, this enables on-line end cutting without adjusting the profile direction, significantly improving profile processing efficiency and reducing material waste from secondary processing of the profile ends.

[0006] Preferably, a positioning strip is provided on the worktable along the profile conveying direction. The extension direction of the telescopic positioning mechanism points towards the positioning strip. The telescopic positioning mechanism includes a positive angle positioning mechanism, a middle positioning mechanism, and a negative angle positioning mechanism arranged sequentially along the profile conveying direction. The positive angle positioning mechanism includes a positive angle telescopic device, the extension direction of which forms a 45-degree angle with the profile conveying direction, and the front end face of the positive angle telescopic device is parallel to the side of the positioning strip. The middle positioning mechanism includes a middle telescopic device, the extension direction of which is perpendicular to the profile conveying direction, and the front end face of the middle telescopic device is parallel to the side of the positioning strip. The negative angle positioning mechanism includes a negative angle telescopic device, the extension direction of which is perpendicular to the extension direction of the positive angle telescopic device. The positioning strip is arranged along the profile conveying direction, which can fully contact the side of the profile and firmly position the profile. The telescopic positioning mechanism and saw blade adopt the most commonly used angles, making the device highly versatile and facilitating right-angle splicing of profiles.

[0007] Preferably, the positive angle telescopic device, the intermediate telescopic device, and the negative angle telescopic device all employ telescopic cylinders. The cylinder body of the telescopic cylinder is fixedly mounted on the worktable. The front end of the cylinder rod faces the positioning strip and is equipped with a side pressure block. The end face of the side pressure block facing the positioning strip is parallel to the side of the positioning strip. The telescopic clamping mechanism is driven by a cylinder, providing rapid response and elasticity. Combined with the contact between the side pressure block and the end face of the profile, it ensures sufficient contact area and clamping force while preventing deformation of the profile under pressure.

[0008] Preferably, the sawing mechanism includes a positive bevel sawing mechanism, a negative bevel sawing mechanism, and a flat angle sawing mechanism arranged sequentially along the profile conveying direction; the worktable is located in the middle of the frame, with the positive bevel sawing mechanism and the flat angle sawing mechanism located above the worktable, and the negative bevel sawing mechanism located below the worktable; the positive bevel sawing mechanism includes a positive bevel saw blade, the negative bevel sawing mechanism includes a negative bevel saw blade, and the flat angle sawing mechanism includes a flat angle saw blade. In the horizontal plane, the projections of the positive bevel saw blade and the negative bevel saw blade intersect perpendicularly. A triangular material drop window is provided on the worktable, with the two adjacent sides of the triangle arranged along the positive bevel saw blade and the negative bevel saw blade, respectively. By distributing saw blades with different angles on the upper and lower sides of the workbench, and by interleaving positive and negative bevel saw blades that do not operate simultaneously, the vertical space of the frame is fully utilized, making the overall layout of the equipment more compact and reducing the floor space occupied. The triangular material discharge window on the workbench allows the two bevel saw blades to pass through while also discharging the excess material generated in the middle of the profile when the cutting angles of the two profiles are different.

[0009] Preferably, the positive bevel sawing mechanism includes a positive bevel sawing head, the negative bevel sawing mechanism includes a negative bevel sawing head, and the flat angle sawing mechanism includes a flat angle sawing head. A first guide rail, a second guide rail, a third guide rail, and a fourth guide rail are vertically arranged sequentially along the profile conveying direction on the frame. The positive bevel sawing head is slidably connected to both the first and second guide rails, the negative bevel sawing head is slidably connected to both the second and third guide rails, and the flat angle sawing head is slidably connected to the third guide rail. Limit blocks are respectively provided in the middle of the second and third guide rails. Each cutting head is connected to the frame via two guide rails, resulting in smoother operation. The lower negative bevel sawing head shares the second and third guide rails with the two upper heads, making the device structure more compact. Simultaneously, by setting a limit block in the middle of the common guide rail (where the upper and lower motor slides overlap), hard limiting is cleverly achieved, preventing overlapping of movement positions and avoiding the risk of collision between saw blades.

[0010] Preferably, the worktable is further equipped with a clamping assembly, which includes a positive bevel clamping mechanism, a middle clamping mechanism, and a flat angle clamping mechanism arranged sequentially along the profile conveying direction. The positive bevel clamping mechanism includes a first lifting device, the moving part of which is equipped with a positive bevel pressure plate. The middle clamping mechanism includes a second lifting device, the moving part of which is equipped with a middle pressure plate. The flat angle clamping mechanism includes a third lifting device, the moving part of which is equipped with a flat angle pressure plate. Along the profile conveying direction, the rear edge of the positive bevel pressure plate is located in front of and parallel to the positive bevel saw blade. The front edge of the middle pressure plate is located behind and parallel to the negative bevel saw blade. The rear edge of the middle pressure plate and the front edge of the flat angle pressure plate are both parallel to and located on both sides of the flat angle saw blade. The clamping assembly, in conjunction with the telescopic positioning mechanism, achieves multi-directional fixation of the profile. Furthermore, the edge of the pressure plate is close to the saw blade cutting position, resulting in a more secure fixation, reduced cutting vibration, and improved cutting accuracy.

[0011] Preferably, the first, second, and third lifting devices all employ telescopic cylinders. The cylinder bodies of the first and third lifting devices are mounted on the bottom surface of the worktable. The cylinder rods of the first and third lifting devices pass through the worktable and are fixedly connected to the corresponding angled and flat angled pressure plates. A heightening bracket is installed on the upper surface of the worktable. The cylinder body of the second lifting device is mounted on the heightening bracket, and the cylinder rod of the second lifting device points vertically to the worktable and is fixedly connected to the intermediate pressure plate. The three lifting devices are respectively located on the upper and lower surfaces of the worktable to reduce positional interference.

[0012] Preferably, the clamping assembly further includes an auxiliary clamping mechanism, which includes a fourth lifting device mounted on the top surface of the intermediate pressure plate. An auxiliary pressure plate is mounted on the moving part of the fourth lifting device. The auxiliary pressure plate is located between the beveled pressure plate and the intermediate pressure plate, and its front and rear edges are parallel to the rear edge of the beveled pressure plate and the front edge of the intermediate pressure plate, respectively. The auxiliary pressure plate, in conjunction with the front beveled edges of the beveled pressure plate and the intermediate pressure plate, ensures that the edge of the pressure plate is close to both sides of the saw blade when cutting bevels, resulting in more precise and secure cutting positioning. Simultaneously, it can clamp any cutting residue that may be generated between the two sections of the profile, preventing the residue from popping out after cutting.

[0013] Preferably, the assembly also includes a feeding component, which is located at the rear of the frame along the material conveying direction. The feeding component includes a horizontal drive device with a clamping device mounted on it. The horizontal drive device can drive the clamping device to move along the profile conveying direction. The clamping device includes a fixed clamping plate connected to the horizontal drive device. A movable clamping plate is mounted on the side of the fixed clamping plate facing away from the horizontal drive device via a telescopic cylinder. The vertical position of the clamping device corresponds to the upper surface of the worktable. When cutting the rear end of the profile, the portion of the profile extending beyond the worktable can be clamped and fixed to prevent the cut profile from falling.

[0014] Preferably, the system also includes a waste recycling component, which comprises a primary stepped conveyor belt and a secondary stepped conveyor belt. The lower end of the primary stepped conveyor belt is located at the bottom of the frame and extends towards the side of the frame opposite to the worktable. The lower end of the secondary stepped conveyor belt is located below the upper end of the primary stepped conveyor belt, and a transfer device is installed below the upper end of the secondary stepped conveyor belt. This ensures timely discharge of cutting waste.

[0015] As can be seen from the above technical solutions, the advantages of this invention are as follows: The cutting device has multiple saw blades at different angles, a telescopic clamping mechanism, and an upper clamping mechanism. Through different combinations of saw blades and clamping mechanisms, a single cutting device can work in conjunction with the profile conveying equipment of the production line to cut both ends of the profile at multiple angles. This can replace the original cutting process on the production line and directly produce profiles with both ends already cut, saving processes, improving production efficiency, and significantly reducing the generation of cutting waste and material ends, improving material utilization, and reducing production costs. The cutting heads are respectively set on the upper and lower sides of the worktable and share a common guide rail. The saw blades are arranged in a crisscross pattern, reducing positional interference and making the device structure more compact. The adjacent edges of multiple pressure plates are parallel to the corresponding saw blades, clamping the profile closest to the cutting line, resulting in less vibration and higher cutting accuracy during cutting. A material feeding component is provided to clamp the cut profile, preventing it from falling and facilitating connection with the production line. A waste material recycling component is provided, which, in conjunction with the pressure plates, can promptly discharge the fallen cutting waste. Attached Figure Description

[0016] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of a specific embodiment of the present invention. Figure 1 .

[0018] Figure 2 This is a structural diagram of a specific embodiment of the present invention. Figure 2 .

[0019] Figure 3 This is a schematic diagram of the workbench in a specific embodiment of the present invention.

[0020] Figure 4 This is a top view of the workbench in a specific embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the telescopic positioning mechanism in a specific embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the pressure plate in the clamping assembly according to a specific embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of the oblique angle clamping mechanism in a specific embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of the intermediate pressing mechanism in a specific embodiment of the present invention.

[0025] Figure 9 This is a schematic diagram of the sawing mechanism in a specific embodiment of the present invention.

[0026] Figure 10 for Figure 9 Enlarged view of point A in the middle.

[0027] Figure 11 This is a schematic diagram of the feeding assembly in a specific embodiment of the present invention.

[0028] Figure 12 This is a schematic diagram of a profile with right-angle cuts at both ends.

[0029] Figure 13 This is a schematic diagram of a profile with both ends cut at a 45-degree angle to each other.

[0030] Figure 14 This is a schematic diagram of a profile with both ends cut at a 45-degree angle in the same direction.

[0031] In the diagram: 1. Frame, 1-1. Horizontal section, 2. Workbench, 3. Positioning strip, 4. Positive angle positioning mechanism, 5. Intermediate positioning mechanism, 5-1. First intermediate positioning mechanism, 5-2. Second intermediate positioning mechanism, 6. Negative angle positioning mechanism, 7. Positive angle telescopic device, 8. Negative angle telescopic device, 9. Side pressure block, 10. Positive angle clamping mechanism, 10-1. First lifting device, 10-2. Positive angle pressure plate, 11. Middle 11-1. Second lifting device; 11-2. Intermediate pressure plate; 12. Flat angle pressing mechanism; 12-1. Third lifting device; 12-2. Flat angle pressure plate; 13. Positive bevel angle sawing mechanism; 13-1. Positive bevel angle saw blade; 13-2. Positive bevel angle sawing head; 13-3. Positive bevel angle sawing head drive device; 14. Negative bevel angle sawing mechanism; 14-1. Negative bevel angle saw blade; 14-2. Negative bevel angle sawing head; 14 -3. Negative bevel angle head drive device; 15. Flat angle sawing mechanism; 15-1. Flat angle saw blade; 15-2. Flat angle sawing head; 15-3. Flat angle head drive device; 16. Auxiliary clamping mechanism; 16-1. Fourth lifting device; 16-2. Auxiliary pressure plate; 17-1. First guide rail; 17-2. Second guide rail; 17-3. Third guide rail; 17-4. Fourth guide rail; 18. Limiting block; 19. Horizontal drive device. 19-1. Rack, 19-2. Drive motor, 20. Clamping device, 20-1. Fixed clamping plate, 20-2. Movable clamping plate, 21-1. First-stage conveyor belt, 21-2. Second-stage conveyor belt, 22. Heightening bracket, 23. Material drop window, 24. Flat angle cutting groove, 25. Support roller, 26. Fixed roller, 27. Moving roller, 28. Mounting base, 29. Telescopic track, 30. Telescopic slider, 31. Telescopic plate. Detailed Implementation

[0032] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0033] like Figure 1 , 2 As shown, a multi-angle profile cutting device includes a frame 1, on which a worktable 2 and three sawing mechanisms are provided;

[0034] The sawing mechanism includes a saw head slidably mounted on the frame 1, a saw blade mounted on the saw head, and a saw head drive device for driving the saw head. The three sawing mechanisms are a positive bevel sawing mechanism 13, a negative bevel sawing mechanism 14, and a flat bevel sawing mechanism 15, arranged sequentially along the profile conveying direction. The worktable 2 is located in the middle of the frame 1. The positive bevel sawing mechanism 13 and the flat bevel sawing mechanism 15 are located above the worktable 2, and the negative bevel sawing mechanism 14 is located below the worktable 2. Specifically, as shown... Figure 9 , 10As shown, the frame 1 is vertically equipped with a first guide rail 17-1, a second guide rail 17-2, a third guide rail 17-3, and a fourth guide rail 17-4, all four guide rails being coplanar. A bevel saw head 13-2 is slidably connected to both the first and second guide rails 17-1 and 17-2. A bevel saw head drive device 13-3 is mounted on the top of the frame 1, located between the first and second guide rails 17-1 and 17-2. A flat saw head 15-2 is slidably connected to both the third and fourth guide rails 17-3 and 17-4. A flat saw head drive device 15-3 is mounted on the top of the frame 1, located between the third and fourth guide rails 17-3 and 17-4. Between guide rails 17-4; the negative bevel saw head 14-2 is slidably connected to both the second guide rail 17-2 and the third guide rail 17-3. The negative bevel saw head drive device 14-3 is located on the side of the frame 1 facing away from the sawing mechanism and between the second guide rail 17-2 and the third guide rail 17-3. The drive devices all use telescopic cylinders. The cylinder body of the drive device is fixedly connected to the frame 1, and the cylinder rod is fixedly connected to the corresponding saw head. A positive bevel saw blade 13-1 is installed on the positive bevel saw head 13-2. The positive bevel saw blade 13-1 is located in the vertical plane and forms a 45-degree angle with the profile conveying direction. The negative bevel saw... A negative bevel saw blade 14-1 is mounted on the cutting head 14-2. The negative bevel saw blade 14-1 is located below the positive bevel saw blade 13-1. In the horizontal plane, the projections of the positive bevel saw blade 13-1 and the negative bevel saw blade 14-1 intersect perpendicularly. Limiting blocks 18 are respectively provided in the middle of the second guide rail 17-2 and the third guide rail 17-3. The limiting blocks 18 can contact the lower end of the positive bevel saw head 13-2 and the upper end of the negative bevel saw head 14-2 to avoid collision between the positive and negative bevel saw blades when the positive or negative bevel saw head 13-2 or the negative bevel saw head 14-2 moves. A flat angle saw head 15-2 is mounted with... The flat-angle saw blade 15-1 is located in the vertical plane and perpendicular to the profile conveying direction. The flat-angle saw blade 15-1 is located behind the negative bevel saw blade 14-1. The workbench 2 is provided with a notch for the saw blade to pass through during operation, including a material drop window 23 and a flat-angle cutting groove 24. The material drop window 23 is a right-angled triangle, with its two right-angled sides located in the planes of the positive bevel saw blade and the negative bevel saw blade, respectively. The right-angled vertex of the right-angled triangle extends outward along the two right-angled sides to form the positive bevel cutting groove and the negative bevel cutting groove, so as to completely accommodate the positive bevel saw blade and the negative bevel saw blade. The flat-angle cutting groove 24 is located below the flat-angle saw blade.

[0035] like Figure 3 , 4 As shown, a positioning strip 3 is arranged on the workbench 2 along the profile conveying direction. A telescopic positioning mechanism is arranged sequentially on one side of the positioning strip 3. The telescopic positioning mechanism includes a positive angle positioning mechanism 4, a middle positioning mechanism 5, and a negative angle positioning mechanism 6. The three mechanisms have similar structures. Taking the positive angle positioning mechanism 4 as an example... Figure 5As shown, it includes a positive angle telescopic device 7, which is preferably a telescopic cylinder. The cylinder body is fixedly connected to the worktable 2 via a mounting base 28. A telescopic plate 31 is mounted on the cylinder rod. A side pressure block 9 is provided at the front end of the telescopic plate 31 along the telescopic direction of the cylinder rod. A telescopic guide rail 29 along the telescopic direction of the cylinder is also mounted on the telescopic plate 31. A telescopic slider 30 cooperating with the telescopic guide rail 29 is fixedly mounted on the mounting base 28 or the worktable 2. The extension direction of the positive angle telescopic device 7 forms a 45-degree angle with the profile conveying direction. The front end face of the positive angle telescopic device 7 is parallel to the side of the positioning strip 3. Furthermore, an intermediate positioning mechanism includes a middle... The intermediate telescopic device extends perpendicularly to the profile conveying direction, and its front end face is parallel to the side of the positioning strip 3. Preferably, two intermediate positioning mechanisms 5 are provided, namely the first intermediate positioning mechanism 5-1 and the second intermediate positioning mechanism 5-2, which are parallel to each other. The negative angle positioning mechanism 6 includes a negative angle telescopic device 8, which extends perpendicularly to the extension direction of the positive angle telescopic device 7. The four side pressure blocks 9 face the positioning strip 3 on a vertical surface along the material conveying direction, which can cooperate with the positioning strip 3 to clamp the profile.

[0036] The workbench is also equipped with a clamping assembly, which includes a positive angle clamping mechanism 10, an intermediate clamping mechanism 11, and a flat angle clamping mechanism 12 arranged sequentially along the profile conveying direction.

[0037] The oblique angle clamping mechanism 10 includes a first lifting device 10-1, the moving part of which is equipped with an oblique angle pressure plate 10-2; the intermediate clamping mechanism includes a second lifting device 11-1, the moving part of which is equipped with an intermediate pressure plate 11-2; and the flat angle clamping mechanism 12 includes a third lifting device 12-1, the moving part of which is equipped with a flat angle pressure plate 12-2. Figure 7 , 8As shown, the first lifting device 10-1, the second lifting device 11-1, and the third lifting device 12-1 all employ telescopic cylinders. The cylinder bodies of the first lifting device 10-1 and the third lifting device 12-1 are both mounted on the bottom surface of the workbench 2. The cylinder rods of the first lifting device 10-1 and the third lifting device 12-1 pass through the workbench 2 and are fixedly connected to the corresponding positive angle pressure plate 10-2 and flat angle pressure plate 12-2. A heightening bracket 22 is mounted on the upper surface of the workbench 2. The cylinder body of the second lifting device 11-1 is mounted on the heightening bracket 22. The cylinder rod of 1 points vertically to the worktable 2 and is fixedly connected to the intermediate pressure plate 11-2. The clamping assembly also includes an auxiliary clamping mechanism 16. The auxiliary clamping mechanism 16 includes a fourth lifting device 16-1. The fourth lifting device 16-1 is installed on the top surface of the intermediate pressure plate 11-2. An auxiliary pressure plate 16-2 is installed on the moving part of the fourth lifting device 16-1. The auxiliary pressure plate 16-2 is located between the oblique angle pressure plate 10-2 and the intermediate pressure plate 11-2. The arrangement of the lifting device is opposite to that of the cutting head, which can avoid the movement position of the cutting head and make the whole machine structure more compact.

[0038] The arrangement of the four pressure plates is as follows Figure 4 , 6 As shown, along the profile conveying direction, the rear edge of the positive bevel pressure plate 10-2 forms a 45-degree angle with the profile conveying direction, is located in front of and parallel to the positive bevel saw blade 13-1; the front edge of the intermediate pressure plate 11-2 is located behind and parallel to the negative bevel saw blade 14-1; the front and rear edges of the auxiliary pressure plate 16-2 are parallel to the rear edge of the positive bevel pressure plate 10-2 and the front edge of the intermediate pressure plate 11-2, respectively. When the beveled saw blade 13-1 moves, it is located between the positive beveled pressure plate 10-2 and the auxiliary pressure plate 16-2. When the negative beveled saw blade 14-1 moves, it is located between the auxiliary pressure plate 16-2 and the intermediate pressure plate 11-2. The rear edge of the intermediate pressure plate 11-2 and the front edge of the flat angle pressure plate 12-2 are parallel to the flat angle saw blade 15-1 and located on both sides of the flat angle saw blade 15-1. When the flat angle saw blade 15-1 moves, it is located between the intermediate pressure plate 11-2 and the flat angle pressure plate 12-2.

[0039] It also includes a feeding auxiliary component and a discharging component. Along the material conveying direction, the feeding auxiliary component is installed on the front side of the workbench 2, and the discharging component is located on the rear side of the frame 1.

[0040] The feeding auxiliary assembly includes at least two support rollers 25, a fixed roller 26, and a movable roller 27. The rotation axis of the support rollers 25 is horizontal and perpendicular to the material conveying direction, and the top of the cylindrical surface of the support rollers 25 is adapted to the height of the upper surface of the worktable 2. The fixed rollers 26 and the movable rollers 27 are arranged between any two adjacent support rollers or between the support rollers and the worktable 2. The rotation axes of the fixed rollers 26 and the movable rollers 27 are vertically arranged, and the plane formed by their rotation axes is perpendicular to the profile conveying direction. The movable rollers 27 are arranged on the side of the positioning strip 3 near the telescopic positioning mechanism. The side of the cylindrical surface of the fixed rollers 26 near the movable rollers 27 is flush with the side of the positioning strip 3 near the telescopic positioning device. The movable rollers 27 can move along the axial direction of the support rollers, that is, move closer to or away from the fixed rollers 26. During feeding, the profile is located on the support rollers 25, and the movable rollers 27 and the fixed rollers 26 are located on both sides of the profile, appropriately clamping the profile so that the profile is close to the positioning strip 3 after being fed into the worktable.

[0041] The side of the frame 1 extends along the profile conveying direction to form a horizontal section 1-1. The vertical height of the horizontal section 1-1 is above the worktable 2. The unloading assembly includes a horizontal drive device 19. A clamping device 20 is installed on the horizontal drive device 19. The horizontal drive device 19 can drive the clamping device 20 to move along the profile conveying direction. The clamping device 20 includes a fixed clamping plate 20-1. The fixed clamping plate 20-1 is connected to the horizontal drive device. A movable clamping plate 20-2 is installed on the side of the fixed clamping plate 20-1 facing away from the horizontal drive device through a telescopic cylinder. The vertical position of the clamping device 20 corresponds to the upper surface of the worktable 2. The horizontal drive device includes a rack 19-1 installed on the horizontal section. A drive motor 19-2 is installed on the fixed clamping plate 20-1. The motor shaft of the drive motor 19-2 passes through the fixed clamping plate 20-1 and is equipped with a drive gear. The drive gear meshes with the rack 19-1.

[0042] It also includes a waste recycling component, which includes a primary stepped conveyor belt 21-1 and a secondary stepped conveyor belt 21-2. The bottom of the frame 1 is provided with a material discharge window. The lower end of the primary stepped conveyor belt 21-1 is located below the material discharge window 23. The primary stepped conveyor belt 21-1 extends towards the side of the frame 1 away from the workbench 2. The lower end of the secondary stepped conveyor belt 21-2 is located below the upper end of the primary stepped conveyor belt 21-1. A transfer device such as a material cart can be installed below the upper end of the secondary stepped conveyor belt 21-2.

[0043] This device can automatically cut profiles with end angles of 45 degrees or flat angles as they are conveyed on the production line. Its working process is as follows:

[0044] 1. When cutting at a 45-degree angle, the profile is conveyed to the worktable. The oblique angle telescopic device and the second intermediate telescopic device extend, and the side pressure blocks of the oblique angle positioning mechanism and the second intermediate positioning mechanism press the profile firmly onto the positioning strip. The first lifting device retracts, and the fourth lifting device extends, causing the oblique angle pressure plate and the auxiliary pressure plate to descend, pressing the profile firmly from the vertical direction. Then, the oblique angle saw head drive device drives the oblique angle saw head to descend. The oblique angle saw blade passes between the oblique angle pressure plate and the auxiliary pressure plate and cuts the profile. The material head (if any) below the auxiliary pressure plate falls into the first step conveyor belt from the material drop window, completing the 45-degree cut of the profile end.

[0045] 2. When cutting at a negative 45-degree angle, the negative angle telescopic device and the first intermediate telescopic device extend, and the side pressure blocks of the negative angle positioning mechanism and the first intermediate positioning mechanism press the profile tightly onto the positioning strip; the second lifting device and the fourth lifting device extend, and the intermediate pressure plate and the auxiliary pressure plate descend, pressing the profile tightly from the vertical direction; then the negative angle saw head descends, the negative angle saw blade passes between the intermediate pressure plate and the auxiliary pressure plate and cuts the profile, and the material head (if any) below the auxiliary pressure plate falls into the first step conveyor belt from the material drop window, completing the negative 45-degree cut of the profile end.

[0046] 3. When cutting the flat angle, the first and second intermediate telescopic devices extend, and the side pressure blocks of the first and second intermediate positioning mechanisms press the profile tightly onto the positioning strip; the second lifting device extends, the third lifting device retracts, and the intermediate pressure plate and the flat angle pressure plate descend, pressing the profile vertically; then the flat angle saw head descends, the flat angle saw blade passes between the intermediate pressure plate and the flat angle pressure plate and cuts the profile, and the cut-off material (if any) falls from the edge of the worktable into the first step conveyor belt, completing the flat angle cutting of the profile end.

[0047] During continuous cutting, after the front end of the profile is cut using one of the three cutting methods mentioned above, the telescopic positioning mechanism and clamping assembly release the profile. The profile continues to run a certain length with the conveyor of the production line. Then, the unloading assembly clamps the front end of the profile. According to the required shape of the rear end of the profile, the rear end of the profile is cut again using one of the three cutting methods mentioned above, thus completing the processing of both ends of a profile. When cutting the rear end of the profile, the front end of the profile behind it can also be cut at the corresponding angle (positive 45 degrees corresponds to negative 45 degrees, and a flat angle corresponds to a flat angle). Through reasonable processing sequence settings and subsequent sorting work of the production line, the processing head and waste can be reduced to the greatest extent, the profile utilization rate can be improved, the cost can be reduced, and the production efficiency can be improved.

[0048] As can be seen from the above embodiments, the beneficial effects of the present invention are as follows: the cutting device has multiple saw blades at different angles, a telescopic clamping mechanism, and an upper clamping mechanism. Through different combinations of saw blades and clamping mechanisms, a single cutting device can work in conjunction with the profile conveying equipment of the production line to cut the two ends of the profile at multiple angles. This can replace the original cutting process on the production line and directly produce profiles with both ends already cut, saving processes, improving production efficiency, and greatly reducing the generation of cutting waste and material heads, improving material utilization, and reducing production costs. The cutting heads are respectively set on the upper and lower sides of the worktable and share a common guide rail. The saw blades are arranged in a cross pattern to reduce positional interference and make the device structure more compact. The adjacent edges of multiple pressure plates are parallel to the corresponding saw blades, clamping the profile closest to the cutting line, resulting in less vibration and higher cutting accuracy during cutting. A material feeding component is provided to clamp the cut profile, preventing it from falling and facilitating connection with the production line. A waste material recycling component is provided, which, in conjunction with the pressure plates, can promptly discharge the fallen cutting waste.

[0049] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-angle profile cutting device, characterized in that, The machine includes a frame (1), on which a workbench (2) and multiple sawing mechanisms are provided; the workbench (2) is provided with telescopic positioning mechanisms along at least three clamping directions; the number of sawing mechanisms corresponds to the number of clamping directions, and each sawing mechanism includes a head drive device and a sawing head, the sawing head is mounted on the moving part of the head drive device, and saw blades are respectively mounted on the sawing head, the planes on which the multiple saw blades are located are perpendicular to the workbench and parallel to the clamping directions of the multiple telescopic positioning mechanisms, and the workbench (2) is provided with notches for the multiple saw blades to pass through; The workbench (2) is provided with a positioning strip (3) along the profile conveying direction. The extension direction of the telescopic positioning mechanism is all pointing to the positioning strip (3). The telescopic positioning mechanism includes a positive oblique angle positioning mechanism (4), an intermediate positioning mechanism (5) and a negative oblique angle positioning mechanism (6) arranged sequentially along the profile conveying direction. The oblique angle positioning mechanism (4) includes an oblique angle telescopic device (7), the extension direction of the oblique angle telescopic device (7) is at an angle of 45 degrees with the profile conveying direction, and the front end face of the oblique angle telescopic device (7) is parallel to the side of the positioning strip (3). The intermediate positioning mechanism includes an intermediate telescopic device, the extension direction of which is perpendicular to the profile conveying direction, and the front end face of which is parallel to the side of the positioning strip (3). The negative angle positioning mechanism (6) includes a negative angle telescopic device (8), the extension direction of which is perpendicular to the extension direction of the positive angle telescopic device (7). The sawing mechanism includes a positive bevel angle sawing mechanism (13), a negative bevel angle sawing mechanism (14), and a flat angle sawing mechanism (15) arranged sequentially along the profile conveying direction. The workbench (2) is located in the middle of the frame (1). The positive bevel sawing mechanism (13) and the flat angle sawing mechanism (15) are located above the workbench (2), and the negative bevel sawing mechanism (14) is located below the workbench (2). The positive bevel sawing mechanism (13) includes a positive bevel saw blade (13-1), the negative bevel sawing mechanism (14) includes a negative bevel saw blade (14-1), and the flat angle sawing mechanism (15) includes a flat angle saw blade (15-1). In the horizontal plane, the projections of the positive bevel saw blade (13-1) and the negative bevel saw blade (14-1) intersect perpendicularly. A triangular material drop window is provided on the workbench (2). The two adjacent sides of the triangle are respectively set along the positive bevel saw blade (13-1) and the negative bevel saw blade (14-1). The positive bevel sawing mechanism (13) includes a positive bevel sawing head (13-2), the negative bevel sawing mechanism (14) includes a negative bevel sawing head (14-2), and the flat angle sawing mechanism (15) includes a flat angle sawing head (15-2). The frame (1) is vertically arranged with a first guide rail (17-1), a second guide rail (17-2), a third guide rail (17-3), and a fourth guide rail (17-4) in sequence along the profile conveying direction. The positive bevel saw head (13-2) is slidably connected to both the first guide rail (17-1) and the second guide rail (17-2). The negative bevel saw head (14-2) is slidably connected to both the second guide rail (17-2) and the third guide rail (17-3). The flat angle saw head (15-2) is slidably connected to both the third guide rail (17-3) and the fourth guide rail (17-4). Limiting blocks (18) are respectively provided in the middle part of the second guide rail (17-2) and the third guide rail (17-3).

2. The multi-angle profile cutting device according to claim 1, characterized in that, The positive angle telescopic device (7), the intermediate telescopic device and the negative angle telescopic device (8) all use telescopic cylinders. The cylinder body of the telescopic cylinder is fixedly installed on the workbench (2). The front end of the cylinder rod of the telescopic cylinder faces the positioning strip (3) and is equipped with a side pressure block (9). The end face of the side pressure block (9) facing the positioning strip (3) is parallel to the side of the positioning strip (3).

3. The multi-angle profile cutting device according to claim 1, characterized in that, The workbench is also provided with a clamping assembly, which includes a positive angle clamping mechanism (10), an intermediate clamping mechanism (11), and a flat angle clamping mechanism (12) arranged sequentially along the profile conveying direction. The oblique angle pressing mechanism (10) includes a first lifting device (10-1), the moving part of the first lifting device (10-1) is equipped with an oblique angle pressure plate (10-2), the intermediate pressing mechanism includes a second lifting device (11-1), the moving part of the second lifting device (11-1) is equipped with an intermediate pressure plate (11-2), and the flat angle pressing mechanism (12) includes a third lifting device (12-1), the moving part of the third lifting device (12-1) is equipped with a flat angle pressure plate (12-2). Along the profile conveying direction, the rear edge of the positive bevel pressure plate (10-2) is located in front of and parallel to the positive bevel saw blade (13-1), the front edge of the intermediate pressure plate (11-2) is located behind and parallel to the negative bevel saw blade (14-1), and the rear edge of the intermediate pressure plate (11-2) and the front edge of the flat angle pressure plate (12-2) are both parallel to the flat angle saw blade (15-1) and located on both sides of the flat angle saw blade (15-1).

4. The multi-angle profile cutting device according to claim 3, characterized in that, The first lifting device (10-1), the second lifting device (11-1), and the third lifting device (12-1) all use telescopic cylinders. The cylinder bodies of the first lifting device (10-1) and the third lifting device (12-1) are installed on the bottom surface of the workbench (2). The cylinder rods of the first lifting device (10-1) and the third lifting device (12-1) pass through the workbench (2) and are fixedly connected to the corresponding oblique angle pressure plate (10-2) and flat angle pressure plate (12-2). A heightening bracket (22) is installed on the upper surface of the workbench (2). The cylinder body of the second lifting device (11-1) is installed on the heightening bracket (22). The cylinder rod of the second lifting device (11-1) points vertically to the workbench (2) and is fixedly connected to the intermediate pressure plate (11-2).

5. The multi-angle profile cutting device according to claim 3, characterized in that, The clamping assembly further includes an auxiliary clamping mechanism (16), which includes a fourth lifting device (16-1). The fourth lifting device (16-1) is installed on the top surface of the intermediate pressure plate (11-2). An auxiliary pressure plate (16-2) is installed on the moving part of the fourth lifting device (16-1). The auxiliary pressure plate (16-2) is located between the oblique angle pressure plate (10-2) and the intermediate pressure plate (11-2). The front and rear edges of the auxiliary pressure plate (16-2) are parallel to the rear edge of the oblique angle pressure plate (10-2) and the front edge of the intermediate pressure plate (11-2), respectively.

6. The multi-angle profile cutting device according to claim 1, characterized in that, It also includes a feeding assembly. Along the material conveying direction, the feeding assembly is located on the rear side of the frame (1). The feeding assembly includes a horizontal drive device (19). A clamping device (20) is installed on the horizontal drive device (19). The horizontal drive device (19) can drive the clamping device (20) to move along the profile conveying direction. The clamping device (20) includes a fixed clamping plate (20-1). The fixed clamping plate (20-1) is connected to the horizontal drive device. A movable clamping plate (20-2) is installed on the side of the fixed clamping plate (20-1) facing away from the horizontal drive device through a telescopic cylinder. The vertical position of the clamping device (20) corresponds to the upper surface of the worktable (2).

7. The multi-angle profile cutting device according to claim 1, characterized in that, It also includes a waste recycling component, which includes a primary stepped conveyor belt (21-1) and a secondary stepped conveyor belt (21-2). The lower end of the primary stepped conveyor belt (21-1) is located at the bottom of the frame, and the primary stepped conveyor belt (21-1) extends toward the side of the frame (1) away from the workbench (2). The lower end of the secondary stepped conveyor belt (21-2) is located below the upper end of the primary stepped conveyor belt (21-1), and a transfer device is provided below the upper end of the secondary stepped conveyor belt (21-2).

Images