A multi-station cutting device for door and window profiles and its cutting method

Abstract

The present invention relates to the field of door and window profile processing, and discloses a multi-station cutting device for door and window profiles and a cutting method thereof, including a frame, on which a conveying station, a cutting station and a discharging station are installed. The conveying station is used for conveying profiles before cutting, the cutting station is used for positioning, clamping and cutting profiles, and the discharging station is used for conveying profiles after cutting. By setting the conveying station, the cutting station and the discharging station, the processing process is made orderly, the production efficiency is improved, and at the cutting station, feeding before profile cutting, clamping and positioning during cutting and discharging after profile cutting can be realized, thereby replacing manual labor and continuously cutting to improve the processing efficiency of door and window profiles.

Description

Technical Field

[0001] The present invention relates to the field of processing of door and window profiles, and particularly to a multi-station cutting device for door and window profiles and a cutting method thereof. Background Art

[0002] In the process of manufacturing door and window profiles, the cutting of aluminum profiles is an essential step, and the profiles are usually cut by a cutting machine. Most traditional profile cutting machines use manual loading and unloading. There is a problem that the positioning of the profiles during loading is not accurate enough, and skew and other situations are likely to occur during cutting, thus affecting the cutting effect. After cutting, manual unloading is used, and the cut finished products and waste materials are separated manually, which is unsafe and inefficient, and it is not easy to achieve continuous cutting.

[0003] Therefore, there is an urgent need for a multi-station cutting device for door and window profiles that can replace manual loading and unloading and solve the above problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-station cutting device for door and window profiles and a cutting method thereof that can replace manual loading and unloading, automatically position the profiles during loading, perform continuous cutting, and automatically separate the profiles during unloading.

[0005] A multi-station cutting device for door and window profiles of the present invention includes a frame, on which a conveying station, a cutting station, and a discharging station are installed. The conveying station is used for conveying the profiles before cutting, the cutting station is used for positioning, clamping, and cutting the profiles, and the discharging station is used for conveying the profiles after cutting;

[0006] The cutting station includes a loading and unloading mechanism, a positioning assembly, a clamping assembly, and a cutting assembly. The loading and unloading mechanism includes a rotating disk, which is driven by an intermittent rotation motor. A plurality of support rods are fixed on the rotating disk, and a plurality of placing frames are fixed between the support rods. The placing frames can place the profiles, and a hook mechanism is installed on each placing frame. The hook mechanism hooks the profiles into the placing frames. The profiles in the placing frames are limited to the center of the placing frames by the positioning assembly and the clamping assembly. The cutting assembly is installed on the top of the frame, and the cutting assembly is used for cutting the profiles in the placing frames.

[0007] In a multi-station cutting device for door and window profiles of the present invention, the conveying station and the discharging station are respectively arranged on both sides of two horizontally placed placing frames, and the conveying station and the discharging station are chain conveyors.

[0008] A multi-station cutting device for door and window profiles of the present invention, wherein the hooking mechanism includes a first connecting rod, one end of the first connecting rod is lapped on the surface of a convex ring, the convex ring is fixed to the frame, the other end of the first connecting rod is fixed to a first rotating shaft, the first rotating shaft is connected to the side wall of the placement frame by bearings, two hook plates are fixed on the first rotating shaft, one end of a first return spring is sleeved and fixed on the first rotating shaft, and the other end of the first return spring is fixed to the side wall of the placement frame. Two opening grooves are formed in the placement frame, and the two hook plates pass through the opening grooves and rotate.

[0009] A multi-station cutting device for door and window profiles of the present invention, wherein the positioning assembly includes a pressing plate, the pressing plate moves along a through hole, the through hole is formed in the bottom surface of the placement frame, the pressing plate is fixed to one end of a second connecting rod, the other end of the second connecting rod is fixed to a first slider, the first slider moves along a first guide rail, the first guide rail is fixed to the placement frame, one end of a second spring is fixed to the first slider, and the other end of the second spring is fixed to the placement frame. The second connecting rod is fixedly connected to a first rack, the first rack meshes with a first gear, the first gear is connected to the placement frame by bearings, the first gear also meshes with a second rack and a third rack, the second rack and the third rack are respectively located on the upper side and the lower side of the first gear, the second rack and the third rack are respectively installed on two groups of positioning kits, the two groups of positioning kits are symmetrically arranged with respect to the first gear, the positioning kit includes a first guide rod, the two first guide rods are respectively fixed to the second rack and the third rack, the first guide rod moves along a second guide rail, the second guide rail is fixed to the placement frame, a limiting plate is fixed on the first guide rod, and the limiting plate can pass through a guide hole formed in the placement frame and lap with the profile.

[0010] A multi-station cutting device for door and window profiles of the present invention, wherein the clamping assembly includes a lead screw, the lead screw is connected to the placement frame by bearings, one end of the lead screw is coaxially fixed to a second gear, the second gear can intermittently mesh with a first arc rack and a second arc rack respectively, the first arc rack and the second arc rack are respectively fixed on a first ring and a second ring, the first ring and the second ring are fixed to the frame, the other end of the lead screw is connected to a limiting block by bearings, the limiting block is fixedly connected to the placement frame, the lead screw is in threaded connection with a guide sleeve, the guide sleeve is slidably connected to a guide track, the guide track is fixed to the placement frame, the guide sleeve is fixed to one end of a bent rod, the other end of the bent rod passes through a long hole and is fixed to a push plate, the long hole is formed in the bottom surface of the placement frame, and the push plate can lap with the profile;

[0011] The two groups of clamping assemblies are symmetrically arranged with respect to the center of the placement frame.

[0012] A multi-station cutting device for door and window profiles of the present invention, wherein the cutting assembly includes a hydraulic pump and a saw blade cutting machine, and the output end of the hydraulic pump is fixedly connected to the saw blade cutting machine.

[0013] A multi-station cutting device for door and window profiles of the present invention, wherein the outer contour of the placement frame is trapezoidal.

[0014] A multi-station cutting device for door and window profiles of the present invention, wherein two symmetrical blanking openings are provided at the bottom of the placement frame, an irregular funnel is arranged below the blanking openings, the irregular funnel is fixedly connected to a collection box, and the collection box is fixed to the frame.

[0015] A multi-station cutting device for door and window profiles of the present invention, wherein a wheel is connected to the limiting plate by a bearing, and the end face of the wheel is parallel to the bottom surface of the placement frame.

[0016] A cutting method for a multi-station cutting device for door and window profiles of the present invention includes the following steps:

[0017] S1. Start the intermittent rotation motor, and the hooking mechanism hooks the profile from the conveying station and enters the placement frame.

[0018] S2. After the profile enters the placement frame, first press the pressing plate, the positioning assembly works, and the two limiting plates push the profile to make its width center coincide with the width center of the placement frame and clamp it.

[0019] S3. The rotating disk rotates, the clamping assembly works, the second gear meshes with the first arc-shaped rack, the second gear rotates clockwise, and the two push plates push the profile to make its length center coincide with the length center of the placement frame and clamp it.

[0020] S4. When the placement frame rotates to the top, start the cutting assembly, the output end of the hydraulic pump descends, driving the saw blade cutting machine to descend, saw the profile, and after sawing is completed, the output end of the hydraulic pump drives the saw blade cutting machine to rise and reset.

[0021] S5. When the placement frame rotates to the right, the second gear meshes with the second arc-shaped rack, the second gear rotates counterclockwise, the guide sleeve resets, driving the push plate to separate from the profile and no longer clamp it, and the waste materials on both sides fall into the blanking openings. Since the overall weight of the profile changes, the pressing plate rises, and the two limiting plates open, enabling the profile to slide to the unloading station.

[0022] S6. Each placement frame on the rotating disk repeats the above working steps to achieve continuous cutting.

[0023] The differences between the multi-station cutting device for door and window profiles of the present invention and the prior art are as follows:

[0024] A multi-station cutting device for door and window profiles of the present invention makes the processing process orderly and improves production efficiency by setting a conveying station, a cutting station and a discharging station. Moreover, at the cutting station, loading of profiles before cutting, clamping and positioning during cutting, and unloading of profiles after cutting can be achieved, thus replacing manual work and continuously cutting to improve the processing efficiency of door and window profiles.

[0025] The following further describes a multi-station cutting device for door and window profiles of the present invention with reference to the accompanying drawings. Description of the Drawings

[0026] Figure 1 is the front view of a multi-station cutting device for door and window profiles;

[0027] Figure 2 is Figure 1 the axonometric view of the multi-station cutting device for door and window profiles shown;

[0028] Figure 3 is Figure 2 the internal structure diagram of;

[0029] Figure 4 is the structural schematic diagram of the hooking mechanism;

[0030] Figure 5 is the structural schematic diagram of the clamping mechanism;

[0031] Figure 6 is Figure 5 the partial enlarged view of;

[0032] Figure 7 is the structural schematic diagram of the positioning mechanism;

[0033] Figure 8 is Figure 7 the top view of;

[0034] Figure 9 is Figure 7 the axonometric view of.

[0035] In the figure:

[0036] frame 1, conveying station 2, cutting station 3, discharging station 4, profile 10;

[0037] loading and unloading mechanism 30, positioning component 31, clamping component 32, cutting component 33, rotating disk 301, intermittent rotation motor 302, support rod 303, placing frame 304;

[0038] hooking mechanism 5, convex ring 50, first connecting rod 51, first rotating shaft 52, hook plate 53, first return spring 54, opening slot 55;

[0039] Pressing plate 3001, through hole 3010, second connecting rod 3002, first slider 3003, first guide rail 3004, second spring 3005, first rack 3006, first gear 3007, second rack 3008, third rack 3009, first guide rod 3101, limit plate 3103, guide hole 3104, wheel 3105, second guide rail 3106;

[0040] Lead screw 601, second gear 602, first arc rack 603, second arc rack 604, first ring 605, second ring 606, limit block 607, guide sleeve 608, guide track 609, bent rod 610, long slot 611, push plate 612;

[0041] Hydraulic pump 71, saw blade cutting machine 72;

[0042] Blanking port 80, special-shaped funnel 81, collection box 82; Specific embodiments

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] Please refer to Figure 1 - Figure 9 , the present invention provides a technical solution, which specifically includes the following embodiments:

[0045] Embodiment 1:

[0046] A multi-station cutting device for door and window profiles includes a frame 1, on which a conveying station 2, a cutting station 3 and a discharging station 4 are installed. The conveying station 2 is used for conveying the profiles 10 before cutting, the cutting station 3 is used for positioning, clamping and cutting the profiles 10, and the discharging station 4 is used for conveying the profiles 10 after cutting;

[0047] The cutting station 3 includes a loading and unloading mechanism 30, a positioning component 31, a clamping component 32 and a cutting component 33. The loading and unloading mechanism 30 includes a rotating disk 301, which is driven by an intermittent rotation motor 302. A plurality of support rods 303 are fixed on the rotating disk 301, and a plurality of placing frames 304 are fixed between the support rods 303. The placing frames 304 can place the profiles 10, and the outer contour of the placing frames 304 is trapezoidal;

[0048] A hooking mechanism 5 is installed on each of the placement frames 304. The hooking mechanism 5 hooks the profile 10 into the placement frame 304. The profile 10 in the placement frame 304 is defined at the center of the placement frame 304 by the positioning assembly 31 and the clamping assembly 32. The cutting assembly 33 is installed on the top of the frame 1. The cutting assembly 33 is used to cut the profile 10 in the placement frame 304. The intermittent rotation motor 302 is connected to the control module.

[0049] By providing a conveying station 2, a cutting station 3, and a discharging station 4, the processing process of the present invention is made orderly, improving production efficiency. Moreover, at the cutting station 3, feeding before cutting the profile 10, clamping and positioning during cutting, and discharging after cutting the profile 10 can be achieved, thus replacing manual labor and enabling continuous cutting, improving the processing efficiency of door and window profiles.

[0050] As a further explanation of this embodiment, the conveying station 2 and the discharging station 4 are respectively arranged on both sides of the two placement frames 304 in the horizontal direction. The conveying station 2 and the discharging station 4 are chain conveyors. The chain conveyors are linked and controlled with the intermittent rotation motor 302 through a PLC program. The chain conveyors intermittently transport the profile 10, which is coordinated with the intermittent rotation of the intermittent rotation motor 302.

[0051] Among them, the transport shafts of the chain conveyors are as Figure 2 shown, discontinuous in the middle, facilitating the hooking mechanism 5 to hook the profile 10.

[0052] Among them, the cutting assembly 33 includes a hydraulic pump 71 and a saw blade cutting machine 72. The output end of the hydraulic pump 71 is fixedly connected to the saw blade cutting machine 72. In the present invention, when the output end of the hydraulic pump 71 descends, it drives the saw blade cutting machine 72 to descend to saw the profile 10. After sawing is completed, the output end of the hydraulic pump 71 drives the saw blade cutting machine 72 to rise and reset. The initial position of the saw blade cutting machine 72 is above the placement frame 304. After resetting, it does not affect the continuous rotation of the placement frame 304. Two groups of cutting assemblies 33 are symmetrically arranged because most profiles 10 are cut at both ends. And the cutting assembly 33 is installed on the frame 1 through a slewing bearing and can rotate a certain angle to meet the cutting requirements.

[0053] Among them, the intermittent rotation motor 302 controls the rotation of the rotating disk 301. The angle of each rotation is the included angle between the centers of one placement frame 304 and another placement frame 304. The time interval of rotation is slightly longer than the time taken for the saw blade cutting machine 72 to cut the profile 10 once.

[0054] Among them, two symmetrical blanking openings 80 are opened at the bottom of the placement frame 304. An irregular funnel 81 is arranged below the blanking opening 80. The irregular funnel 81 is fixedly connected to the collection box 82, and the collection box 82 is fixed to the frame 1. Through the cutting of the saw blade cutting machine 72 in the present invention, on the one hand, the blanking opening 80 can cut through the profile 10, and on the other hand, the cut waste enters the irregular funnel 81 and then enters the collection box 82, realizing the separation of the profile 10 and the waste.

[0055] During operation: The rotating disk 301 is circular and can be divided into four regions. The left side is the loading region for hooking the profile 10 on the conveying station 2 into the placement frame 304 through the hooking mechanism 5; the top is the cutting region. When the placement frame 304 rotates to the bottom, the saw blade cutting machine 72 in the cutting assembly 33 is driven by the hydraulic pump 71 to descend to cut the profile 10. The right side is the unloading region, and the cut profile 10 slides from the placement frame 304 to the unloading station 4; the bottom is the transition region. After the placement frame 304 finishes unloading and is ready for loading. When the placement frame 304 rotates from the loading region to the top cutting region, the profile 10 is hooked into the placement frame 304 through the hooking mechanism 5, and the positioning assembly 31 and the clamping assembly 32 move the center of the profile 10 to the center position in the placement frame 304 from the surrounding directions of the profile 10. The profile 10 is clamped and positioned. When the profile 10 rotates from the top cutting region to the right unloading region, the positioning assembly 31 and the clamping assembly 32 are reset to cancel the clamping of the profile 10, and the profile 10 slides down to the unloading station 4.

[0056] As a further explanation of this embodiment, refer to Figures 1 to 4 , the hooking mechanism 5 includes a first connecting rod 51. One end of the first connecting rod 51 is lapped on the surface of the convex ring 50. The convex ring 50 is fixed to the frame 1. The other end of the first connecting rod 51 is fixed to a first rotating shaft 52. The first rotating shaft 52 is connected by bearings to the side wall of the placement frame 304. Two hook plates 53 are fixed on the first rotating shaft 52. One end of a first return spring 54 is sleeved and fixed on the first rotating shaft 52, and the other end of the first return spring 54 is fixed to the side wall of the placement frame 304. Two opening slots 55 are opened on the placement frame 304, and the two hook plates 53 pass through the opening slots 55 and rotate.

[0057] During operation, when the feeding and unloading mechanism 30 is started and the rotating disk 301 rotates, when the idle placement frame 304 at the bottom rotates to the left horizontal position, and the first connecting rod 51 gradually rotates from the concave surface to the convex surface of the convex ring 50, it will drive the first rotating shaft 52 to swing upward, so that the two hook plates 53 lift the profile 10 on the conveying station 2, and the profile 10 slides down along the inner wall of the placement frame 304 to the bottom;

[0058] When the first connecting rod 51 moves to the position where the convex surface of the convex ring 50 transitions to the concave surface, it is reset under the traction of the first return spring 54. At this time, the profiled material 10 after cutting slides down along the hook plate 53 to the unloading station 4.

[0059] By providing the hooking mechanism 5, the present invention controls the hook plate 53 to hook the profiled material 10 into the placement frame 304 through the convex ring 50, improving the degree of automation and replacing manual feeding.

[0060] As a further explanation of this embodiment, refer to Figures 7 to 9 The positioning assembly 31 includes a pressure plate 3001. The pressure plate 3001 moves along the through hole 3010. The through hole 3010 is opened on the bottom surface of the placement frame 304. One end of the pressure plate 3001 is fixed to the second connecting rod 3002. The other end of the second connecting rod 3002 is fixed to the first slider 3003. The first slider 3003 moves along the first guide rail 3004. The first guide rail 3004 is fixed to the placement frame 304. One end of the first slider 3003 is fixed to the second spring 3005. The other end of the second spring 3005 is fixed to the placement frame 304. The second connecting rod 3002 is fixedly connected to the first rack 3006. The first rack 3006 meshes with the first gear 3007. The first gear 3007 is connected to the placement frame 304 by bearings. The first gear 3007 also meshes with the second rack 3008 and the third rack 3009. The second rack 3008 and the third rack 3009 are respectively located on the upper side and the lower side of the first gear 3007. The second rack 3008 and the third rack 3009 are respectively installed on two groups of positioning kits. The two groups of positioning kits are symmetrically arranged with respect to the first gear 3007. The positioning kit includes a first guide rod 3101. The two first guide rods 3101 are respectively fixed to the second rack 3008 and the third rack 3009. The first guide rod 3101 moves along the second guide rail 3106. The second guide rail 3106 is fixed to the placement frame 304. A limit plate 3103 is fixed on the first guide rod 3101. The limit plate 3103 can pass through the guide hole 3104 opened on the placement frame 304 to overlap with the profiled material 10.

[0061] During operation, when the hooking mechanism 5 causes the profile 10 to slide into the placement frame 304, the center of the profile 10 needs to be moved to the center of the placement frame 304 before cutting to facilitate positioning for cutting. The profile 10 will fall onto the pressing plate 3001, and the self-weight of the profile 10 will cause the pressing plate 3001 to descend below the surface of the placement frame 304, making the bottom surface of the profile 10 fit with the bottom surface of the placement frame 304. The weight of each profile 10 is basically the same. Therefore, the pressing plate 3001 descends a certain distance, driving the first rack 3006 to descend, causing the first gear 3007 to rotate counterclockwise, and further causing the second rack 3008 and the third rack 3009 to retract, causing the first guide rod 3101 to retract, and further causing the two symmetric limiting plates 3103 to overlap with the profile 10. The limiting plates 3103 push the profile 10 to align the width center of the profile 10 with the width center of the placement frame 304 and clamp it.

[0062] After cutting is completed, the waste materials on both sides fall into the blanking port 80, and the overall weight of the profile 10 changes. Therefore, the pressing plate 3001 rises, and the two limiting plates 3103 open, enabling the profile 10 to slide off.

[0063] Among them, a wheel 3105 is connected to the limiting plate 3103 by a bearing, and the end face of the wheel 3105 is parallel to the bottom surface of the placement frame 304. In the present invention, the limiting plate 3103 pushes the profile 10 to align the width center of the profile 10 with the width center of the placement frame 304 and clamp it. In the length direction of the profile 10, the profile 10 can still move.

[0064] As a further explanation of this embodiment, refer to Figures 5 to 6 , the clamping assembly 32 includes a lead screw 601, the lead screw 601 is connected to the placement frame 304 by a bearing, one end of the lead screw 601 is coaxially fixed with a second gear 602, the second gear 602 can be intermittently engaged with a first arc-shaped rack 603 and a second arc-shaped rack 604 respectively, the first arc-shaped rack 603 and the second arc-shaped rack 604 are respectively fixed on a first ring 605 and a second ring 606, the first ring 605 and the second ring 606 are fixed to the frame 1, the other end of the lead screw 601 is connected to a limit block 607 by a bearing, the limit block 607 is fixedly connected to the placement frame 304, the lead screw 601 is threadedly connected to a guide sleeve 608, the guide sleeve 608 is slidably connected to a guide rail 609, the guide rail 609 is fixed to the placement frame 304, the guide sleeve 608 is fixed to one end of a bending rod 610, the other end of the bending rod 610 passes through a long hole 611 and is fixed to a push plate 612, the long hole 611 is opened on the bottom surface of the placement frame 304, and the push plate 612 can overlap with the profile 10;

[0065] Two groups of the clamping assemblies 32 are symmetrically arranged about the center of the placement frame 304.

[0066] Wherein, the first arc rack 603 and the second arc rack 604 are respectively located at the bottom and top of the second gear 602, so that the meshing positions are different, enabling the second gear 602 to rotate in both forward and reverse directions.

[0067] Wherein, the first arc rack 603 and the second arc rack 604 have the same number of teeth, ensuring that the lead screw 601 rotates the same number of turns.

[0068] During operation, while the positioning assembly 31 pushes the profile 10 to coincide and clamp with the width center of the placement frame 304 at its width center, the placement frame 304 rotates from the horizontal position on the left side to the original position of another placement frame 304. The second gear 602 meshes with the first arc rack 603, and the second gear 602 rotates clockwise, causing the lead screw 601 to rotate and drive the guide sleeve 608 to move to the limit block 607, so that the bending rod 610 drives the push plate 612 to overlap with the side surface of the profile 10 until the two push plates 612 push the profile 10 to coincide and clamp with the length center of the placement frame 304 at its length center. At this time, the second gear 602 disengages from the first arc rack 603 and stops rotating;

[0069] After cutting is completed at the top, the placement frame 304 at the top rotates clockwise. During this process, the second gear 602 meshes with the second arc rack 604, and the second gear 602 rotates counterclockwise. The guide sleeve 608 resets, driving the push plate 612 to separate from the profile 10 and no longer clamp, causing the profile 10 to slide to the unloading station 4.

[0070] By setting the positioning assembly 31 and the clamping assembly 32 to cooperate in a linkage manner, the present invention pushes the profile 10 to the center of the placement frame 304 for positioning during the clamping process, enabling the cutting assembly 33 to directly cut the profile 10 and enabling the cut profiles 10 to be separated for blanking, improving the sorting efficiency. Therefore, the present invention realizes integrated linkage control, realizes continuous cutting and loading and unloading, replaces manual labor, and improves production efficiency.

[0071] A cutting method for a multi-station cutting device for door and window profiles includes the following steps:

[0072] S1. Start the intermittent rotation motor 302, and the hooking mechanism 5 hooks the profile 10 from the conveying station 2 into the placement frame 304;

[0073] S2. After the profile 10 enters the placement frame 304, first press the pressing plate 3001, and the positioning assembly 31 works. The two limiting plates 3103 push the profile 10 to coincide and clamp with the width center of the placement frame 304 at its width center;

[0074] In S3, the rotating disk 301 rotates, the clamping assembly 32 operates, the second gear 602 meshes with the first arc-shaped rack 603, the second gear 602 rotates clockwise, and the two push plates 612 push the profile 10 until the length center thereof coincides with the length center of the placement frame 304 and clamp it.

[0075] In S4, the placement frame 304 rotates to the top, the cutting assembly 33 is started, the output end of the hydraulic pump 71 descends, driving the saw blade cutting machine 72 to descend to saw the profile 10. After the sawing is completed, the output end of the hydraulic pump 71 drives the saw blade cutting machine 72 to rise and reset.

[0076] In S5, the placement frame 304 rotates to the right, the second gear 602 meshes with the second arc-shaped rack 604, the second gear 602 rotates counterclockwise, the guide sleeve 608 resets, driving the push plates 612 to separate from the profile 10 and no longer clamp it. The waste materials on both sides fall into the blanking port 80, and the overall weight of the profile 10 changes. Therefore, the pressing plate 3001 rises, and the two limiting plates 3103 open, enabling the profile 10 to slide to the unloading station 4.

[0077] In S6, each placement frame 304 on the rotating disk 301 repeats the above working steps to achieve continuous cutting.

Claims

1. A multi-station cutting device for door and window profiles, characterized in that: include A frame (1) on which a conveying station (2), a cutting station (3) and a discharge station (4) are mounted, wherein the conveying station (2) is used for conveying the profile (10) before cutting, the cutting station (3) is used for positioning, clamping and cutting the profile (10), and the discharge station (4) is used for conveying the profile (10) after cutting; The cutting station (3) comprises a loading and unloading mechanism (30), a positioning assembly (31), a clamping assembly (32) and a cutting assembly (33). The loading and unloading mechanism (30) comprises a rotating disk (301), the rotating disk (301) is driven by an intermittent rotating motor (302), a plurality of support rods (303) are fixed on the rotating disk (301), a plurality of placement frames (304) are fixed between the support rods (303), and the placement frames (304) are capable of placing profiles (10). The placement frame (304) is equipped with a hooking mechanism (5), the hooking mechanism (5) hooks the profile (10) and puts it into the placement frame (304), the profile (10) in the placement frame (304) is confined at the center of the placement frame (304) by the positioning component (31) and the clamping component (32), the cutting component (33) is installed on the top of the frame (1), and the cutting component (33) is used to cut the profile (10) in the placement frame (304); The clamping assembly (32) comprises a lead screw (601), the lead screw (601) being connected to the placement frame (304) via a bearing, one end of the lead screw (601) being coaxially fixed to a second gear (602), the second gear (602) being capable of intermittently meshing with a first arc-shaped rack (603) and a second arc-shaped rack (604), respectively, the first arc-shaped rack (603) and the second arc-shaped rack (604) being fixed to a first circular ring (605) and a second circular ring (606), respectively, the first circular ring (605) and the second circular ring (606) being fixed to the frame (1), and the other end of the lead screw (601) being fixed to a limiting The positioning block (607) is connected by a bearing, the positioning block (607) is fixedly connected to the placement frame (304), the lead screw (601) is threadedly connected to the guide sleeve (608), the guide sleeve (608) is slidably connected to the guide rail (609), the guide rail (609) is fixed to the placement frame (304), the guide sleeve (608) is fixed to one end of the bending rod (610), the other end of the bending rod (610) passes through the long hole (611) and is fixed to the push plate (612), the long hole (611) is opened on the bottom surface of the placement frame (304), and the push plate (612) can overlap with the profile (10); The two groups of clamping assemblies (32) are symmetrically arranged about the center of the placement frame (304).

2. A multi-station cutting device for door and window profiles according to claim 1, characterized in that: The conveying station (2) and the unloading station (4) are respectively arranged on both sides of the two placement frames (304) in the horizontal direction, and the conveying station (2) and the unloading station (4) are sprocket conveyors.

3. A multi-station cutting device for door and window profiles according to claim 2, characterized in that: The hooking mechanism (5) comprises a first connecting rod (51), one end of which overlaps the surface of a convex ring (50), the convex ring (50) is fixed to the frame (1), the other end of the first connecting rod (51) is fixed to a first rotating shaft (52), the first rotating shaft (52) is bearing-connected to the side wall of the placement frame (304), two hook plates (53) are fixed to the first rotating shaft (52), one end of a first return spring (54) is fixedly mounted on the first rotating shaft (52), the other end of the first return spring (54) is fixed to the side wall of the placement frame (304), and two opening slots (55) are provided on the placement frame (304), and the two hook plates (53) rotate through the opening slots (55).

4. The multi-station cutting device for door and window profiles according to claim 3, characterized in that: The positioning assembly (31) comprises a pressing plate (3001), the pressing plate (3001) moves along a through hole (3010), the through hole (3010) is provided on the bottom surface of the placement frame (304), the pressing plate (3001) is fixed to one end of a second connecting rod (3002), the other end of the second connecting rod (3002) is fixed to a first sliding block (3003), the first sliding block (3003) moves along a first guide rail (3004), and the first guide rail (300 4) is fixed to the placement frame (304), the first slider (3003) is fixed to one end of the second spring (3005), the other end of the second spring (3005) is fixed to the placement frame (304), the second connecting rod (3002) is fixedly connected to the first rack (3006), the first rack (3006) is meshed with the first gear (3007), the first gear (3007) is connected to the placement frame (304) bearing, the first gear (3007) is also meshed with the second rack (3008) and the third rack (3009), the second rack (3008) and the third rack (3009) are respectively located on the upper side and the lower side of the first gear (3007), the second rack (3008) and the third rack (3009) are respectively installed on two sets of positioning kits, the two sets of positioning kits are symmetrically arranged about the first gear (3007), the positioning kit includes a first guide rod (3101), two of the first The guide rod (3101) is fixed to the second rack (3008) and the third rack (3009) respectively; the first guide rod (3101) moves along the second guide rail (3106); the second guide rail (3106) is fixed to the placement frame (304); a limit plate (3103) is fixed on the first guide rod (3101); the limit plate (3103) can pass through a guide hole (3104) provided in the placement frame (304) and overlap with the profile (10).

5. The multi-station cutting device for door and window profiles according to claim 4, characterized in that: The cutting assembly (33) comprises a hydraulic pump (71) and a saw blade cutting machine (72), and an output end of the hydraulic pump (71) is fixedly connected to the saw blade cutting machine (72).

6. The multi-station cutting device for door and window profiles according to claim 1, characterized in that: The outer contour of the placement frame (304) is a trapezoid.

7. The multi-station cutting device for door and window profiles according to claim 1, characterized in that: Two symmetrical material drop openings (80) are provided at the bottom of the placement frame (304), and a special-shaped funnel (81) is arranged below the material drop opening (80). The special-shaped funnel (81) is fixedly connected to a collection box (82), and the collection box (82) is fixed to the frame (1).

8. The multi-station cutting device for door and window profiles according to claim 4, characterized in that: A wheel (3105) is connected to a bearing on the limiting plate (3103), and an end surface of the wheel (3105) is parallel to the bottom surface of the placement frame (304).

9. A cutting method of a multi-station cutting device for door and window profiles, based on the multi-station cutting device for door and window profiles according to claim 8, characterized in that: The steps include: S1, starting the intermittent rotating motor (302), the hooking mechanism (5) hooks the profile (10) from the conveying station (2) and puts it into the placement frame (304); S2, after the profile (10) enters the placement frame (304), the pressing plate (3001) is first pressed, the positioning assembly (31) works, and the two limit plates (3103) push the profile (10) until its width center coincides with the width center of the placement frame (304) and clamps it; S3, the rotating disk (301) rotates, the clamping assembly (32) works, the second gear (602) meshes with the first arc-shaped rack (603), the second gear (602) rotates clockwise, and the two push plates (612) push the profile (10) until its length center coincides with the length center of the placement frame (304) and clamps it; S4, the placement frame (304) rotates to the top, the cutting assembly (33) is started, the output end of the hydraulic pump (71) descends, driving the saw blade cutting machine (72) to descend, and sawing the profile (10), after the sawing is completed, the output end of the hydraulic pump (71) drives the saw blade cutting machine (72) to rise and reset; S5, the placement frame (304) rotates to the right, the second gear (602) meshes with the second arc-shaped rack (604), the second gear (602) rotates counterclockwise, the guide sleeve (608) resets, driving the push plate (612) to separate from the profile (10), no longer clamped, the waste on both sides falls into the drop opening (80), the overall weight of the profile (10) changes, so the pressing plate (3001) rises, the two limit plates (3103) open, so that the profile (10) can slide to the unloading station (4); S6, each placement frame (304) on the rotating disk (301) repeats the above working steps to achieve continuous cutting.

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