A door and window profile cutting saw and a method of using the same

Abstract

The application discloses a door and window profile cutting saw and a use method thereof, and mainly relates to the field of door and window profile cutting. The cutting saw comprises a frame body, a working mechanism and a material supporting mechanism arranged on the frame body. The working mechanism comprises a fixed workbench and a movable workbench. The fixed workbench is fixedly arranged at one end of the frame body, and the movable workbench can slide relative to the frame body. The fixed workbench and the movable workbench both comprise a base box. The base box is provided with a cutting mechanism, a clamping mechanism and a material placing platform. The application has the beneficial effect that the setting of the movable part can counteract the shaking and slight rotation of the feeding cylinder piston rod when the piston rod is out of the base box due to the shaking of the equipment during operation, so that the shaking effect cannot be transmitted to the saw blade, and the stability of the saw blade is ensured, and the cutting surface cut by the saw blade is more smooth.

Description

Technical Field

[0001] This invention relates to the field of door and window profile cutting, specifically a door and window profile cutting saw and its usage method. Background Technology

[0002] Modern doors and windows are typically constructed by splicing together multiple profiles. The most basic, conventional doors and windows consist of four profiles joined in a square shape. During splicing, the mating ends of two opposing profiles need to be cut at a certain angle, commonly 45°. This reduces gaps and improves the aesthetics of the joint. Furthermore, the shape, size, and structure of doors and windows vary depending on the specific application, necessitating the cutting and processing of the original profiles to meet manufacturing requirements. Currently, profile cutting is typically accomplished using a cutting saw.

[0003] There are many types of existing cutting saws. Among them, the double-table cutting saw can simultaneously process both ends of the profile, thus saving processing steps compared to the single-table cutting saw and achieving a one-time forming effect. The main structure of the double-table cutting saw includes a fixed worktable and a movable worktable. The structures on the two worktables are roughly the same, mainly including a saw blade, a feed cylinder, a rotary cylinder, and a drive motor. The feed cylinder enables the saw blade to move back and forth, the rotary cylinder enables the saw blade to rotate, and the drive motor is used to drive the rotation of the saw blade.

[0004] However, double-table cutting saws also have drawbacks: 1. When processing profiles, manual unloading is still required; 2. (See attached image) Figure 15 As shown, when the profile to be cut is long, the movable worktable needs to move, and the middle position of the profile cannot be supported, resulting in a downward bend in the middle of the profile. This downward bend is more severe for profiles with low hardness, which can affect the flatness of the processed surface. 3. Industry professionals have found that the equipment vibrates during use. This vibration causes the piston rod of the feed cylinder to wobble and rotate slightly when it extends. After prolonged use, aging occurs between the parts, and the vibration of the piston rod causes the saw blade to wobble during cutting, thus affecting the accuracy of the profile cut surface. Therefore, it is necessary to research and design a cutting saw to address the above problems and further improve the profile cutting efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a door and window profile cutting saw and its usage method. It addresses the problems in existing cutting saws where, when processing long profiles, the lack of support in the middle of the profile causes it to bend downwards, and the vibration caused by machine operation leads to the piston rod of the feed cylinder shaking, resulting in an uneven cut surface. The invention provides a relatively improved design, thereby making the cut surface of the profile more precise and accurate. At the same time, it improves upon the current requirement for manual loading and unloading operations, saving workers' time and effort.

[0006] To achieve the above objectives, the present invention employs the following technical solution:

[0007] A door and window profile cutting saw includes a frame, on which a working mechanism and a material support mechanism are provided;

[0008] The working mechanism includes a fixed worktable and a movable worktable. The fixed worktable is fixedly positioned at one end of the frame, and the movable worktable can slide relative to the frame.

[0009] Both the fixed workbench and the mobile workbench include a base box, and the base box is equipped with a cutting mechanism, a clamping mechanism, and a material placement platform.

[0010] The cutting mechanism includes a support platform, a saw blade, a drive motor, a feed cylinder, and a rotary cylinder. The support platform and the base housing are rotatably connected. The rotary cylinder is hinged to the support platform and the base housing. The rotary cylinder drives the support platform to rotate relative to the base housing. The drive motor is fixedly mounted on the support platform, and its output end is connected to the saw blade to provide rotational output to the saw blade. The feed cylinder is fixedly mounted on the support platform. A movable part is provided between the piston rod of the feed cylinder and the drive motor. The movable part enables the feed cylinder to stably drive the drive motor and the saw blade.

[0011] The material placement platform is configured in conjunction with the cutting mechanism, and the material placement platform is provided with a slit to facilitate cutting by the saw blade. The clamping mechanism is configured in conjunction with the material placement platform, and the clamping mechanism includes a Z-axis clamping cylinder and a Y-axis clamping cylinder, and the Z-axis clamping cylinder and the Y-axis clamping cylinder respectively clamp the cutting material on the material placement platform in the Z and Y directions.

[0012] The material support mechanism is configured in conjunction with the working mechanism. The material support mechanism includes a fixed support platform and a lifting support platform assembly. The fixed support platform is located at one end of the material placement platform on the mobile workbench. The lifting support platform assembly includes a support platform and a lifting drive cylinder. The lifting drive cylinder is located at the bottom of the frame, and the support platform is located at the upper end of the lifting drive cylinder and is connected to the piston rod of the lifting drive cylinder.

[0013] A rolling roller shaft is provided on the support platform of the lifting platform assembly. The roller shaft facilitates the feeding of the cutting material. A rotating motor is provided on the roller shaft. The rotating motor is located at the lower end of the roller shaft and drives the roller shaft to rotate.

[0014] The movable component is a spherical bearing, which includes an outer shaft and a movable ball. A circular groove is provided at the front end of the outer shaft, and the movable ball is embedded in the circular groove and can rotate. At the same time, there is a through hole at the center of the movable ball, and the movable ball is fixedly connected to the drive motor through the through hole. The outer shaft is fixedly connected to the piston rod of the feed cylinder.

[0015] The frame is equipped with a sliding rod, and the base box of the mobile workbench is fitted onto the sliding rod. A mobile drive motor is installed at one end of the base box of the mobile workbench in conjunction with the frame. A gear transmission mechanism is provided between the mobile drive motor and the frame. The gear transmission mechanism includes a rack and a gear. The rack is fixedly installed on the side of the frame, and the gear is fitted onto the output end of the mobile drive motor.

[0016] A pneumatic brake assembly is provided between the movable worktable and the slide bar. The pneumatic brake assembly includes a brake element and a brake drive cylinder. The brake element is fixedly connected to the movable worktable. The brake drive cylinder is configured in conjunction with the brake element, and the brake element applies force to the slide bar under the drive of the brake drive cylinder.

[0017] A linkage mechanism with four equal sides is provided between the roller shaft and the rotating motor. Fixed rods are respectively provided at the intersection of the upper and lower ends of the linkage mechanism. The fixed rods are fixedly connected to the support platform and the rotating motor respectively. Gears are respectively provided at the intersection of the left and right ends of the linkage mechanism. At the same time, gears are also provided at the shaft of the roller and the output end of the rotating motor. A chain is ringed on the four gears, and the rotating motor drives the roller shaft through the chain.

[0018] Multiple lifting platform assemblies are provided, and the multiple lifting platform assemblies are arranged in parallel.

[0019] The rotating cylinder is positioned in the middle of the support platform.

[0020] The fixed workbench and the movable workbench are also equipped with protective devices, including a lifting protective cover and a cutting protective cover. One end of the lifting protective cover is fitted with a lifting cylinder that is fixedly mounted on the base box and provides lifting output for the lifting protective cover. The cutting protective cover is fixedly mounted on the support platform and can cover the saw blade. The cutting protective cover is provided with a feed slot and a saw blade slot. The feed slot is set in accordance with the saw blade feed path, and the saw blade slot allows the saw blade to enter and exit for cutting.

[0021] The bottom of the cutting cover is provided with a dust suction port at the end away from the saw blade. The dust suction port is used to connect a dust suction device. The base box is provided with a rotating slot corresponding to the dust suction port. The rotating slot facilitates the rotation of the dust suction port with the saw blade, drive motor, and feed cylinder.

[0022] A method of using a door and window profile cutting saw includes the following steps: S1, adjusting the movable worktable to a suitable position and activating the pneumatic brake assembly to lock the position of the movable worktable;

[0023] S2, the lifting protective cover is raised under the action of the lifting cylinder. At this time, the profile to be cut is placed on the material placement platform of the fixed worktable and the moving worktable. At the same time, the front end of the profile is aligned and the end of the profile is placed on the material support mechanism.

[0024] S3, after placement, by turning on the start button, the cylinder assembly in the clamping mechanism will operate to clamp the profile. The lifting protective cover will descend under the action of the lifting cylinder. At this time, the saw blade will start to rotate under the drive of the drive motor. At the same time, the drive motor and the saw blade will move forward to cut by the push of the feed cylinder. Here, the fixed worktable and the moving worktable move synchronously.

[0025] S4. After the profile is cut, when it is necessary to cut the beveled edge, the saw blade and drive motor are pushed back to their original position under the action of the feed cylinder. At this time, the rotary cylinder is operated to adjust the saw blade to a suitable angle. The feed cylinder is then operated to push the drive motor and saw blade forward to cut the edge of the profile.

[0026] S5, after the cutting is completed, the saw blade and drive assembly are pushed back. After being pushed back to the original position, the rotating cylinder performs a retraction motion, so that the saw blade returns to its original state.

[0027] S6, the lower material needs to be cut. The clamping mechanism releases the clamping state, and the roller shaft rotates under the operation of the rotating motor. At this time, the profile on the roller shaft moves forward. The profile that has been cut at the front end leaves the worktable, and the profile that needs to be cut at the rear end reaches the material placement platform of the worktable.

[0028] S7: After the profile reaches the designated position, the clamping mechanism clamps it and repeats the cutting actions of S3-S5.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] By incorporating movable components, the system effectively counteracts the wobbling and slight rotation of the feed cylinder piston rod caused by equipment vibration during operation. This prevents the vibration from being transmitted to the saw blade, ensuring its stability and resulting in a smoother cut surface. Simultaneously, a liftable material support device provides stable support for the profile located between the two worktables without interfering with the movement of the movable worktable. This further ensures profile stability and a smoother cut surface. Furthermore, the inclusion of roller shafts that allow for rotation enables automatic profile feeding, reducing operator steps and accelerating profile cutting production. Attached Figure Description

[0031] Appendix Figure 1 This is a schematic diagram of the specific structure of the present invention.

[0032] Appendix Figure 2 It is an appendix to this invention Figure 1 Enlarged view of a specific area.

[0033] Appendix Figure 3 This is a schematic diagram of the specific structure of the workbench in this invention.

[0034] Appendix Figure 4 It is an appendix to this invention Figure 3 Enlarged view of a specific area.

[0035] Appendix Figure 5 This is a detailed structural diagram of the spherical bearing in this invention.

[0036] Appendix Figure 6 This is a schematic diagram of the specific structure in this invention.

[0037] Appendix Figure 7 This is a schematic diagram of the braking component structure in this invention.

[0038] Appendix Figure 8 This is a schematic diagram of the specific structure of the workbench in this invention.

[0039] Appendix Figure 9 This is a schematic diagram of the specific structure in this invention.

[0040] Appendix Figure 10 This is a schematic diagram of the specific structure in this invention.

[0041] Appendix Figure 11 It is an appendix to this invention Figure 10 Enlarged views of parts A and B in the image.

[0042] Appendix Figure 12 This is a schematic diagram of the linkage mechanism in this invention.

[0043] Appendix Figure 13 This is a schematic diagram of the specific structure of the lifting platform assembly in this invention.

[0044] Appendix Figure 14 This is a structural diagram of a damping cylinder.

[0045] Appendix Figure 15 This is a schematic diagram of a cutting saw with a double worktable as the support.

[0046] Appendix Figure 16 This is a schematic diagram illustrating the application of the lifting platform assembly in this invention.

[0047] The labels shown in the attached diagram:

[0048] 1. Frame; 2. Fixed workbench; 3. Movable workbench; 4. Base box; 5. Material placement platform; 6. Support platform; 7. Saw blade; 8. Drive motor; 9. Feed cylinder; 10. Rotary cylinder; 11. Z-axis clamping cylinder; 12. Y-axis clamping cylinder; 13. Fixed support platform; 14. Lifting support platform assembly; 15. Support platform; 16. Lifting drive cylinder; 17. Roller shaft; 18. Rotary motor; 19. Spherical bearing; 20. 21. External shaft; 22. Movable ball; 23. Slide rod; 24. Motion drive motor; 25. Rack; 26. Gear; 27. Brake component; 28. Brake drive cylinder; 29. ​​Linkage mechanism; 20. Fixed rod; 31. Working lifting protective cover; 32. Cutting protective cover; 33. Lifting cylinder; 34. Feed slot; 35. Saw blade slot; 36. Dust suction interface; 37. Rotating slot; 38. Chain; 39. Rotating gear. Detailed Implementation

[0049] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined in this application.

[0050] The present invention relates to a door and window profile cutting saw, the main structure of which includes a frame 1, a working structure, and a material support structure;

[0051] The working mechanism and material support mechanism are mounted on the frame 1. The working mechanism includes a fixed workbench 2 and a movable workbench 3, which are arranged side by side. The fixed workbench 2 is fixedly positioned at one end of the frame 1, while the movable workbench 3 is movable relative to the frame 1. Having two workbenches allows for simultaneous processing of both ends of the profile, saving processing time. The movable workbench 3 is also provided to cut the profile into different lengths to meet various door and window requirements.

[0052] The internal working mechanism components of the fixed worktable 2 and the movable worktable 3 are described below.

[0053] As shown in the attached diagram of the instruction manual. Figure 1 As shown, both the fixed workbench 2 and the movable workbench 3 include a base box 4, and the base box 4 is equipped with a cutting mechanism, a clamping mechanism, a material placement platform 5, and a protective device.

[0054] 1. As shown in the attached diagram of the instruction manual. Figure 5 As shown, the cutting mechanism includes a support platform 6, a saw blade 7, a drive motor 8, a feed cylinder 9, and a rotating cylinder 10. The support platform 6 and the base housing 4 are rotatably connected, specifically through a pin-shaft structure. The rotatable connection is located at the upper end of the support platform 6 and the base housing 4, although it can also be positioned in the middle, as long as rotation is possible. The function of the support platform 6 is to cut the two ends of the profile at a suitable bevel angle, typically 45°, during actual processing. This facilitates assembly when multiple profiles (usually four) are assembled, ensuring good sealing of the assembled doors and windows. Therefore, during processing, the saw blade 7 rotates to a certain angle, typically 45°, for cutting. In this device, if the saw blade 7 rotates, the drive motor 8 and the feed cylinder 9 also need to rotate. Therefore, to facilitate their simultaneous rotation, the drive motor 8 and the feed cylinder 9 are uniformly fixed on the support platform 6, allowing the support platform 6 to rotate.

[0055] The rotating cylinder 10 is hinged to the support platform 6 and the base box 4. The rotating cylinder 10 drives the support platform 6 to rotate relative to the base box 4. The rotating cylinder 10 is located at the lower end of the support platform 6. As mentioned above, the saw blade 7 needs to rotate in order to cut the edge of the profile at an angle. The rotating cylinder 10 is provided, and the rotating cylinder 10 is hinged to the support platform 6 and the base box 4. At the same time, the support platform 6 and the base box 4 are rotatably connected. When the rotating cylinder 10 is extended, since the base box 4 is fixed, the support platform 6 will be lifted by the rotating cylinder 10 and rotate. This realizes the rotation of the saw blade 7. At the same time, the support platform 6 rotates along the Y-axis. The rotating cylinder 10 is hinged to the support platform 6 and the base housing 4. This is because the position of the rotating cylinder 10 is fixed relative to the base housing 4 during operation. The hinge allows the rotating cylinder 10 to extend, causing the support platform 6 to rotate relative to the base housing 4. In this device, the rotating cylinder 10 is actually a cylinder, but other automatically retractable components can also be used. The position of the rotating cylinder 10 has been improved. Traditionally, rotating cylinders 10 are placed at one corner of the support platform 6 for ease of installation, but this placement is unreasonable for the stress on the support platform 6. Therefore, in this device, the rotating cylinder 10 is placed in the middle of the side of the support platform 6. This middle position provides a more reasonable and stable stress distribution on the support platform 6, and also prevents the rotating cylinder 10 from being exposed, thus providing better protection.

[0056] The drive motor 8 is fixedly mounted on the support platform 6, and its output end is connected to the saw blade 7, providing rotational output to the saw blade 7. The feed cylinder 9 is fixedly mounted on the support platform 6, and a movable part is provided between the piston rod of the feed cylinder 9 and the drive motor 8. This movable part allows the feed cylinder 9 to stably drive the drive motor 8 and the saw blade 7. The function of the feed cylinder 9 is to enable the saw blade 7 to move back and forth, so that when the profile is placed on the material placement platform 5, the profile can be cut step by step. Here, the feed cylinder 9 has a special feature: it is equipped with a damping cylinder. The damping cylinder is used to generate resistance. The damping cylinder is composed of a cylinder and a hydraulic cylinder connected in series or parallel, and uses compressed air as its energy source to drive the cylinder, as shown in the attached figure. Figure 14 As shown in the diagram, the left side is a hydraulic cylinder, and the right side is a pneumatic cylinder. The hydraulic cylinder and the pneumatic cylinder are connected in parallel. Injecting anti-wear hydraulic oil into the hydraulic cylinder compresses the air inside and transmits it to the pneumatic cylinder, driving the piston rod inside the pneumatic cylinder. This allows the saw blade 7 to move more smoothly and stably under the action of the feed cylinder 9. (See attached diagram in the instruction manual.) Figure 5As shown, the movable component is a spherical bearing 19, which includes an outer shaft 20 and a movable ball 21. A circular groove is provided at the front end of the outer shaft 20, and the movable ball 21 is embedded in the circular groove and can rotate. The movable ball 21 also has a through hole at its center, through which it is fixedly connected to the drive motor 8. The outer shaft 20 is fixedly connected to the piston rod of the feed cylinder 9. It is important to understand that equipment experiences shaking / vibration during operation. In actual operating environments, even slight deviations can cause errors in profile cutting, affecting the sealing of profile splices. The piston rod of the feed cylinder 9 is most affected by the shaking / vibration. As the piston rod extends, the intersection between the piston rod and the cylinder body gradually decreases, making the shaking / vibration of the equipment particularly impactful for the already slender piston rod. Meanwhile, when the piston rod of the feed cylinder 9 is fixedly connected to the cutting component drive motor 8 and the saw blade 7, after long-term use, the equipment gradually ages, which leads to increasingly noticeable shaking / vibration on the cutting component drive motor 8 and the saw blade 7, causing the saw blade 7 to cut unevenly. However, the spherical bearing 19, with its movable ball 21, can shake, thereby reducing the impact of the piston rod's shaking on the saw blade 7 and the drive motor 8. Compared to the fixed connection method, this method can cancel out the shaking / vibration force, greatly ensuring the cutting stability of the saw blade 7. In addition, in actual processing and manufacturing, there may be deviations in the machining of the connection position between the feed cylinder 9 and the drive motor 8, so the spherical bearing 19 can facilitate the installation of the feed cylinder 9 and the drive motor 8.

[0057] 2. As shown in the attached diagram of the instruction manual. Figure 3 , 8 As shown, the material placement platform 5 is used to place the cutting material. Specifically, the material placement platform 5 is located at the front end of the saw blade 7 and is fixedly connected to the base box 4. The material placement platform 5 is provided with a cutting notch to facilitate cutting by the saw blade 7. At the same time, the clamping mechanism is set in conjunction with the material placement platform 5. The clamping mechanism includes a Z-axis clamping cylinder and a Y-axis clamping cylinder 12. The Z-axis clamping cylinder and the Y-axis clamping cylinder 12 clamp the cutting material on the material placement platform 5 in the Z and Y directions, respectively. Specifically, the Z-axis clamping cylinder is located at the upper end of the material placement platform 5, and the Y-axis clamping cylinder 12 is located at the front end of the material placement platform 5, so that the material to be cut can be securely fixed.

[0058] 3. The protective device includes a working lifting protective cover 30 and a cutting protective cover 31. The working lifting protective cover 30 is located at the upper end of the material placement platform 5 to cover the material being cut, preventing the material fragments generated during cutting from splashing onto the workers. A lifting cylinder 32 is mounted on one end of the working lifting protective cover 30 in conjunction with the base housing 4. The lifting cylinder 32 is fixedly mounted on the base housing 4 and provides lifting output for the working lifting protective cover 30. The cutting protective cover 31 is fixedly mounted on the support platform 6 and can cover the saw blade 7. The cutting protective cover 31 is provided with a feed slot 33 and a saw blade 7 slot. The feed slot 33 is designed to match the feed path of the saw blade 7, and the saw blade 7 slot allows the saw blade 7 to enter and exit for cutting.

[0059] Furthermore, the cutting guard 31 described above not only protects the saw blade 7 but also prevents it from causing injury to personnel. It also blocks the flying debris cut by the saw blade 7. To facilitate cleaning and replacement of the debris, a vacuum port 35 is provided at the bottom of the cutting guard 31, away from the saw blade 7. This vacuum port 35 connects to a vacuum cleaner, which removes all the debris, keeping the device clean. Considering that the cutting guard 31 rotates with the saw blade 7, and that the vacuum port 35 passes through the base housing 4 of the working mechanism, a rotating slot 36 is provided in the base housing 4 corresponding to the vacuum port 35 to facilitate its rotation. This rotating slot 36 allows the vacuum port 35 to rotate with the saw blade 7, the drive motor 8, and the feed cylinder 9.

[0060] The arrangement between the mobile workbench 3 and the frame 1 is as follows:

[0061] The frame 1 is provided with a slide rod 22, and the base box 4 of the movable workbench 3 is fitted on the slide rod 22. A movable drive motor 23 is provided at one end of the base box 4 of the movable workbench 3 in conjunction with the frame 1. A gear 25 transmission mechanism is provided between the movable drive motor 23 and the frame 1. The gear 25 transmission mechanism includes a rack 24 and a gear 25. The rack 24 is fixedly installed on the side of the frame 1, and the gear 25 is fitted on the output end of the movable drive motor 23.

[0062] Furthermore, to ensure the stable fixed position of the movable worktable 3 during use, a pneumatic brake assembly is provided between the movable worktable 3 and the slide rod 22. The pneumatic brake assembly includes a brake element 26 and a brake drive cylinder 27. The brake element 26 is fixedly connected to the movable worktable 3, and the brake drive cylinder 27 is configured to cooperate with the brake element 26. The brake element 26 applies force to the slide rod 22 under the drive of the brake drive cylinder 27. The specific appearance of the brake element 26 is shown in the attached drawings of the specification. Figure 7 As shown, the contact surface between the brake element 26 and the slide rod 22 has an inclined surface, and the brake element 26 and the slide rod 22 are staggered vertically. When in use, by pushing the brake element 26, the contact area between the brake element 26 and the slide rod 22 is increased, thereby enabling the movable worktable 3 to be firmly fixed on the slide rod 22.

[0063] The specific configuration of the material support mechanism mentioned above is described below:

[0064] The material support mechanism is configured in conjunction with the working mechanism. Specifically, the material support mechanism and the working mechanism are arranged side by side and located at the rear end of the fixed worktable 2. The material support mechanism includes a fixed support platform 13 and a lifting support platform assembly 14. The fixed support platform 13 is located at one end of the material placement platform 5 on the movable worktable 3. The lifting support platform assembly 14 includes a support platform 15 and a lifting drive cylinder 16. The lifting drive cylinder 16 is located at the bottom of the frame 1, and the support platform 15 is located at the upper end of the lifting drive cylinder 16 and is connected to the piston rod of the lifting drive cylinder 16. The material support mechanism is provided to lift longer profiles, thus ensuring that the profiles are not too long during cutting, preventing the front end of the profile from warping upwards. Furthermore, the material support mechanism ensures the stability of the profile during cutting. To further ensure the stability of longer profiles during processing and cutting, multiple support platforms 15 are provided, and multiple lifting platform groups are arranged side by side. Regarding the lifting support platform group 14, since the movable worktable 3 can move relative to the frame 1, and the lifting support platform group 14 of this device is located on the movement path of the movable worktable 3, in order to prevent the lifting support platform group 14 from affecting the movement of the movable worktable 3, the lifting support platform group 14 can be raised and lowered. Thus, when the movable worktable 3 moves to the vicinity of the lifting support platform group 14, the lifting support platform group 14 will quickly descend, thereby not affecting the movement of the movable worktable 3. The lifting control of the lifting platform assembly 14 is achieved through an electronic control system. The electronic control system determines the position of the movable worktable 3 on the frame 1. When the movable worktable 3 is 20cm away from the front or rear end of the lifting platform 15, the electronic control system controls the lifting drive cylinder to descend. After the movable worktable 3 moves away from the designated position, the electronic control system issues a new command to control the lifting drive cylinder 16 to rise. The electronic control system can be implemented using a PLC control system, such as a Siemens 6ES7288-1SR20-0AA0 S7-200SMART, CPU SR20, standard CPU module, relay output, 220V AC power supply, 12 inputs / 8 outputs. The usage and setup of this electronic control system are well-known to those skilled in the art.

[0065] Meanwhile, a rolling roller shaft 17 is provided on the support platform 15 of the lifting platform assembly 14. The roller shaft 17 facilitates the feeding of cutting materials. A rotary motor 18 is installed in conjunction with the roller shaft 17. The rotary motor 18 is located at the lower end of the roller shaft 17. The rotary motor 18 drives the roller shaft 17 to rotate. By causing the roller shaft 17 to rotate, the profile located on the roller shaft 17 can move under the action of the roller shaft 17's rotation, thereby achieving the effect of automatic feeding and saving manual feeding time. At the same time, the rotation of the roller shaft 17 can be controlled by the aforementioned electronic control system, thereby controlling the profile feeding length. Considering that the roller shaft 17 needs to move up and down with the support platform 15, and considering that the initial design of this device was to reduce the load force on the lifting drive cylinder 16, the rotary motor 18 is installed on the frame 1. Therefore, in order to facilitate stable output transmission of the roller shaft 17 by the rotary motor 18, as shown in the attached... Figure 11 As shown in Figure A or 12, a linkage mechanism 28 with four equal sides is provided between the roller shaft 17 and the rotating motor 18. Fixed rods 29 are respectively provided at the intersection of the upper and lower ends of the linkage mechanism 28. The fixed rods 29 are respectively fixedly connected to the support platform 15 and the drive motor 8. Gears 25 are respectively provided at the intersection of the left and right ends of the linkage mechanism 28. At the same time, gears 25 are also provided on the shaft of the roller and the output end of the drive motor 8. Chains 37 are ringed on the four gears 25. The rotating motor 18 drives the roller shaft 17 through the chains 37. The surface of the roller shaft 17 is provided with a rubber layer.

[0066] How to use:

[0067] S1, adjust the movable worktable 3 to a suitable position, and activate the pneumatic brake assembly to lock the position of the movable worktable 3;

[0068] S2, the lifting protective cover is raised under the action of the lifting cylinder 32. At this time, the profile to be cut is placed on the material placement platform 5 of the fixed worktable 2 and the movable worktable 3. At the same time, the front end of the profile is aligned and the end of the profile is placed on the material support mechanism.

[0069] S3, after placement, by turning on the start button, the cylinder assembly in the clamping mechanism will operate to clamp the profile. The lifting protective cover will descend under the action of the lifting cylinder 32. At this time, the saw blade 7 will start to rotate under the drive of the drive motor 8. At the same time, the drive motor 8 and the saw blade 7 will move forward to cut under the push of the feed cylinder 9. Here, the fixed worktable 2 and the moving worktable 3 move synchronously.

[0070] S4. After the profile is cut, when it is necessary to cut the beveled edge, the saw blade 7 and the drive motor 8 are pushed back to their original position under the action of the feed cylinder 9. At this time, the rotary cylinder 10 is operated to adjust the saw blade 7 to a suitable angle. At this time, the feed cylinder 9 is operated to push the drive motor 8 and the saw blade 7 forward to cut the edge of the profile.

[0071] S5, after the cutting is completed, the saw blade 7 and the drive assembly are pushed back. After being pushed back to the original position, the rotating cylinder 10 performs a retraction motion, so that the saw blade 7 returns to its original state.

[0072] S6, the lower material needs to be cut. The clamping mechanism releases the contact clamping state, and the roller shaft 17 rotates under the operation of the rotating motor 18. At this time, the profile on the roller shaft 17 moves forward. The profile that has been cut at the front end leaves the worktable, and the profile that needs to be cut at the rear end reaches the material placement platform 5 of the worktable.

[0073] S7: After the profile reaches the designated position, the clamping mechanism clamps it and repeats the cutting actions of S3-S5.

[0074] The steps and operations described above, as well as the coordinated movements between various structural components, can all be automated through the installation of an electronic intelligent control system. This automates the workflow, significantly accelerating the profile cutting process and greatly improving work efficiency. Furthermore, this device prioritizes stability during processing, ensuring a tight fit between the profiles during assembly, thus guaranteeing the airtightness of the manufactured doors and windows. Using this device and method further enhances the efficiency of door and window profile cutting and reduces labor costs.

Claims

1. A door and window profile cutting saw, characterized in that: Includes a frame (1), on which a working mechanism and a material support mechanism are provided; The working mechanism includes a fixed workbench (2) and a movable workbench (3). The fixed workbench (2) is fixedly positioned at one end of the frame (1), and the movable workbench (3) can slide relative to the frame (1). The fixed workbench (2) and the mobile workbench (3) both include a base box (4), and the base box (4) is provided with a cutting mechanism, a clamping mechanism and a material placement platform (5). The cutting mechanism includes a support platform (6), a saw blade (7), a drive motor (8), a feed cylinder (9), and a rotary cylinder (10). The support platform (6) and the base box (4) are rotatably connected. The rotary cylinder (10) is hinged to the support platform (6) and the base box (4). The rotary cylinder (10) drives the support platform (6) to rotate relative to the base box (4). The drive motor (8) is fixedly mounted on the support platform (6). At the same time, the output end of the drive motor (8) is connected to the saw blade (7) to provide rotation output to the saw blade (7). The feed cylinder (9) is fixedly mounted on the support platform (6). A movable part is provided between the piston rod of the feed cylinder (9) and the drive motor (8). The movable part enables the feed cylinder (9) to stably drive the drive motor (8) and the saw blade (7). The material placement platform (5) is configured in conjunction with the cutting mechanism, and the material placement platform (5) is provided with a cutting notch for easy cutting by the saw blade (7). The clamping mechanism is configured in conjunction with the material placement platform (5), and the clamping mechanism includes a Z-axis clamping cylinder and a Y-axis clamping cylinder (12). The Z-axis clamping cylinder and the Y-axis clamping cylinder (12) clamp the cutting material on the material placement platform (5) in the Z and Y directions, respectively. The material support mechanism is set up in conjunction with the working mechanism. The material support mechanism includes a fixed support platform (13) and a lifting support platform group (14). The fixed support platform (13) is set at one end of the material placement platform (5) on the mobile worktable (3). The lifting support platform group (14) includes a support platform (15) and a lifting drive cylinder (16). The lifting drive cylinder (16) is set at the bottom of the frame (1). The support platform (15) is set at the upper end of the lifting drive cylinder (16) and is connected to the piston rod of the lifting drive cylinder (16). A rolling roller shaft (17) is provided on the platform (15) of the lifting platform assembly (14). The roller shaft (17) facilitates the feeding of cutting materials. A rotating motor (18) is provided on the roller shaft (17). The rotating motor (18) is located at the lower end of the roller shaft (17). The rotating motor (18) drives the roller shaft (17) to rotate. The movable component is a spherical bearing (19), which includes an outer shaft (20) and a movable ball (21). A circular groove is provided at the front end of the outer shaft (20), and the movable ball (21) is embedded in the circular groove and can rotate. At the same time, the center of the movable ball (21) has a through hole, and the movable ball (21) is fixedly connected to the drive motor (8) through the through hole. The outer shaft (20) is fixedly connected to the piston rod of the feed cylinder (9). A slide bar (22) is provided on the frame (1). The base box (4) of the mobile workbench (3) is fitted on the slide bar (22). A mobile drive motor (23) is provided at one end of the base box (4) of the mobile workbench (3) in conjunction with the frame (1). A gear (25) transmission mechanism is provided between the mobile drive motor (23) and the frame (1). The gear (25) transmission mechanism includes a rack (24) and a gear (25). The rack (24) is fixedly installed on the side of the frame (1). The gear (25) is fitted on the output end of the mobile drive motor (23).

2. The door and window profile cutting saw according to claim 1, characterized in that: A pneumatic brake assembly is provided between the movable worktable (3) and the slide bar (22). The pneumatic brake assembly includes a brake element (26) and a brake drive cylinder (27). The brake element (26) is fixedly connected to the movable worktable (3). The brake drive cylinder (27) is set in cooperation with the brake element (26), and the brake element (26) applies an action to the slide bar (22) under the drive of the brake drive cylinder (27).

3. The door and window profile cutting saw according to claim 1, characterized in that: A linkage mechanism (28) with four equal sides is provided between the roller shaft (17) and the rotating motor (18). Fixed rods (29) are respectively provided at the intersection of the upper and lower ends of the linkage mechanism (28). The fixed rods (29) are respectively fixedly connected to the support platform (15) and the rotating motor (18). Gears (25) are respectively provided at the intersection of the left and right ends of the linkage mechanism (28). At the same time, gears (25) are provided in cooperation on the shaft of the roller and the output end of the rotating motor (18). A chain (37) is ringed on the four gears (25). The rotating motor (18) drives the roller shaft (17) through the chain (37).

4. The door and window profile cutting saw according to claim 1, characterized in that: Multiple lifting platform groups (14) are provided, and multiple lifting platform groups (14) are arranged in parallel.

5. The door and window profile cutting saw according to claim 1, characterized in that: The rotating cylinder (10) is located in the middle of the support platform (6).

6. The door and window profile cutting saw according to claim 1, characterized in that: The fixed workbench (2) and the mobile workbench (3) are also equipped with protective devices, including a work lifting protective cover (30) and a cutting cover (31). One end of the work lifting protective cover (30) is equipped with a lifting cylinder (32) in conjunction with the base box (4). The lifting cylinder (32) is fixedly installed on the base box (4) to provide lifting output for the work lifting protective cover (30). The cutting cover (31) is fixedly installed on the support platform (6) and can cover the saw blade (7). The cutting cover (31) is equipped with a feed slot (33) and a saw blade (7) slot. The feed slot (33) is set in conjunction with the feed path of the saw blade (7). The saw blade (7) slot is used for the saw blade (7) to enter and exit for cutting.

7. The door and window profile cutting saw according to claim 6, characterized in that: The bottom of the cutting cover (31) away from the saw blade (7) is provided with a dust suction interface (35). The dust suction interface (35) is used to connect a dust suction device. The base box (4) is provided with a rotating slot (36) corresponding to the dust suction interface (35). The rotating slot (36) facilitates the dust suction interface (35) to rotate with the saw blade (7), the drive motor (8), and the feed cylinder (9).

8. A method of using a door and window profile cutting saw, applied to the door and window profile cutting saw described in any one of claims 1-7, characterized in that: Includes the following steps; S1, adjust the movable worktable (3) to a suitable position, and activate the pneumatic brake assembly to lock the position of the movable worktable (3); S2, the lifting protective cover is raised under the action of the lifting cylinder (32). At this time, the profile to be cut is placed on the material placement platform (5) of the fixed worktable (2) and the moving worktable (3). At the same time, the front end of the profile is aligned and the end of the profile is placed on the material support mechanism. S3, after placement, by turning on the start button, the cylinder assembly in the clamping mechanism will operate to clamp the profile. The lifting protective cover will descend under the action of the lifting cylinder (32). At this time, the saw blade (7) will start to rotate under the drive of the drive motor (8). At the same time, the drive motor (8) and the saw blade (7) will move forward to cut under the push of the feed cylinder (9). Here, the fixed worktable (2) and the moving worktable (3) move synchronously. S4. After the profile is cut, when it is necessary to cut the beveled edge, the saw blade (7) and drive motor (8) are pushed back to the original position under the action of the feed cylinder (9). At this time, the rotating cylinder (10) is operated to adjust the saw blade (7) to a suitable angle. At this time, the feed cylinder (9) is operated to push the drive motor (8) and saw blade (7) forward to cut the edge of the profile. S5, after the cutting is completed, the saw blade (7) and drive assembly are pushed back. After being pushed back to the original position, the cylinder (10) is rotated to perform a retraction motion, so that the saw blade (7) is converted to the original state; S6, the lower end material needs to be cut, the clamping mechanism releases the contact clamping state, the roller shaft (17) rotates under the operation of the rotating motor (18), at this time the profile on the roller shaft (17) moves forward, the profile at the front end that has been cut leaves the worktable, and the profile at the rear end that needs to be cut reaches the material placement platform (5) of the worktable. S7: After the profile reaches the designated position, the clamping mechanism clamps it and repeats the cutting actions of S3-S5.

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