PVC foamed vent window vane assembly and manufacturing process thereof

Abstract

The application provides a PVC foamed ventilation window vane assembly and a manufacturing process thereof, which comprises a circular window, a circular window frame rotatably connected in the circular window, a vertically arranged mounting beam fixedly connected to the front side of the circular window frame, end baffle plates fixedly connected to the top and bottom of the circular window frame, a plurality of vanes rotatably connected in the circular window frame between the two end baffle plates, a rotating opening mechanism installed in the mounting beam and capable of simultaneously driving the plurality of vanes to synchronously rotate open, sealing strips bonded to the two side edges of the vane, a metal reinforcing shaft built in the vane, and the two ends of the metal reinforcing shaft extending out of the vane and rotatably installed on the inner side of the circular window frame. The vane assembly can adjust the ventilation direction according to actual use needs, has good sealing effect after being closed, and has high vane manufacturing efficiency.

Description

Technical Field

[0001] This invention relates to the field of ventilation window technology, and in particular to a blade assembly for a PVC foam ventilation window and its manufacturing process. Background Technology

[0002] Currently, breathable venetian blinds typically use a wooden structure, which mainly includes: a frame structure composed of horizontal and vertical frames, venetian slats that are inserted and fixed to the inside of the vertical frames at both ends, and a tie rod that connects to the hinges of the venetian slats. However, wooden structures are prone to cracking, mold, and corrosion after a period of use. To avoid such problems, breathable venetian blinds made of rigid PVC material have also appeared on the market.

[0003] Current ventilation blinds can only rotate up and down during ventilation, so the wind can only blow into the room at two angles: downward or horizontal. The wind direction cannot be adjusted according to actual use needs. In addition, conventional blinds still leave gaps after closing, which can easily lead to air leakage. Summary of the Invention

[0004] To address the aforementioned issues, this invention provides a blade assembly for a PVC foamed ventilation window and its manufacturing process. This blade assembly can adjust the ventilation direction according to actual usage needs and provides a good sealing effect when closed.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0006] A blade assembly for a PVC foamed ventilation window includes a circular window, a circular window frame rotatably connected inside the circular window, a vertically installed mounting beam fixedly connected to the front side of the circular window frame, end baffles fixedly connected to the top and bottom of the circular window frame, multiple blades rotatably connected between the two end baffles inside the circular window frame, a rotating mechanism installed inside the mounting beam that can simultaneously drive multiple blades to rotate open synchronously, sealing strips adhered to both sides of the blades, and metal reinforcing shafts built into the blades, with blades extending from both ends of the metal reinforcing shafts and rotatably installed inside the circular window frame.

[0007] Preferably, the rear side of the circular window frame is provided with an annular groove, and the left and right sides of the annular groove are provided with multiple pairs of insertion ports for fitting the ends of the metal reinforcing shafts. An annular limiting plate for restricting the ends of the metal reinforcing shafts within the insertion ports is installed at the opening of the annular groove.

[0008] Preferably, the unscrewing mechanism includes a mounting groove disposed on the rear side of the mounting beam, a sliding rod that can slide up and down is installed in the mounting groove, a screw is threadedly connected to the bottom of the mounting beam, the upper end of the screw extends into the mounting groove and is rotatably connected to the lower end of the sliding rod, a plurality of sliders are rotatably connected to the side wall of the sliding rod, the plurality of sliders correspond one-to-one with a plurality of blades, a plurality of connecting arms are disposed in the mounting groove, the sliders are slidably mounted on the corresponding connecting arms, and the ends of the connecting arms are connected to the corresponding blades through connecting components.

[0009] Preferably, the connecting assembly includes a slot on the front side of the blade for the end of the connecting arm to be inserted, and insertion holes communicating with the slot are provided on the rear side of the blade and the middle part of the metal reinforcing shaft. The end of the connecting arm is provided with a threaded groove corresponding to the insertion hole, and a bolt is installed on the rear side of the blade to insert into the insertion hole and be threadedly connected to the threaded groove.

[0010] Preferably, a pin is installed at the bottom of the mounting beam, and pin slots for the pin are provided at the bottom and on the right inner wall of the circular window.

[0011] The present invention also provides a manufacturing process for a blade assembly of a PVC foamed ventilation window, which uses a manufacturing device for a blade assembly of a PVC foamed ventilation window. The device includes a base and a support. A circular placement platform is fixedly installed on the base. A corresponding and liftable annular cutter cylinder is installed below the support. A liftable pressure plate is installed inside the annular cutter cylinder. An annular grinding plate is embedded in the inner wall of the annular cutter cylinder. A radial groove is provided on the circular placement platform. A radially movable drilling mechanism is installed in the radial groove. An insertion shaft mechanism for simultaneously inserting multiple metal reinforcing shafts into multiple blades is also installed on the left side of the base.

[0012] The specific steps for manufacturing the blade assembly using the above-mentioned manufacturing device are as follows:

[0013] S1. Use an extruder to process PVC blades, with a channel reserved in the middle of the blade for the metal reinforcing shaft to pass through;

[0014] S2. Adhere sealing strips of equal length to both sides of the blade, and then arrange multiple blades on a circular placement platform;

[0015] S3. After the pressure plate descends and presses down multiple blades, the annular cutter cylinder descends to cut off the part of the blades that extends out of the circular placement platform on both sides, so that the blade ends fit the circular window frame. Then the annular cutter cylinder drives the annular grinding plate to rotate and grind the blade ends.

[0016] S4. Keep the multiple blades at the cut ends pressed together, and insert multiple metal reinforcing shafts into the channels of the blades through the shaft insertion mechanism;

[0017] S5. After inserting the shaft, the radially moving drilling mechanism drills slots and insertion holes in the middle of multiple blades in sequence, and also drills corresponding insertion holes in the middle of the metal reinforcing shaft, thus completing the blade manufacturing process.

[0018] Preferably, two first hydraulic cylinders are fixedly installed on both sides of the top of the bracket. The telescopic end of the first hydraulic cylinder is fixedly connected to an annular plate. The annular cutter cylinder is rotatably connected inside the annular plate. A second hydraulic cylinder is also fixedly installed on the top of the bracket. The second hydraulic cylinder extends into the annular cutter cylinder, and its telescopic end is fixedly connected to the pressure plate through a connecting frame.

[0019] Preferably, a first motor is mounted on the top of the annular plate, a gear is fixedly connected to the output end of the first motor, and a gear ring that meshes with the gear is fixed to the side wall of the annular cutter barrel.

[0020] Preferably, the drilling mechanism includes a threaded rod rotatably connected in a radial groove, a second motor capable of driving the threaded rod to rotate is installed on the side wall of the circular placement platform, a movable seat is threadedly connected to the threaded rod, a cylinder is fixedly installed on the movable seat, a third motor is fixedly installed at the telescopic end of the cylinder, and a coarse drill bit and a fine drill bit are fixedly connected to the output end of the third motor.

[0021] Preferably, the insertion shaft mechanism includes an insertion shaft seat that can move left and right, the insertion shaft seat is provided with multiple insertion shaft channels, a third hydraulic cylinder is installed on the left side of the insertion shaft seat, an arc-shaped push plate is fixedly connected to the telescopic end of the third hydraulic cylinder, and multiple push blocks extending into the corresponding insertion shaft channels are fixedly connected to the bottom of the arc-shaped push plate.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. By installing a circular window frame, multiple blades adapted to the circular window frame, and a rotating mechanism, when upward or downward ventilation is needed, simply rotate the screw in the forward or reverse direction to move the slide bar up or down. Through the slider and connecting arm, the blades rotate in the forward or reverse direction around the metal reinforcing shaft, allowing air to blow upward or downward into the room through the multiple blades. Alternatively, the entire circular window frame can be rotated to make the multiple blades vertical. After locking with the pin, the left and right wind direction can be adjusted to meet the ventilation needs of various situations.

[0024] 2. By bonding sealing strips to both sides of the blade, the sealing strips can press against each other after the blade is closed, resulting in a good sealing effect; inserting a metal reinforcing shaft into the blade not only serves as the blade's rotation shaft, but also strengthens the overall structural strength of the blade, making it less prone to bending.

[0025] 3. By setting up connecting components, sockets, and annular limiting plates, when installing blades, simply insert the end of the connecting arm into the slot of the blade, and screw the bolt through the socket of the blade and the metal reinforcing shaft into the threaded groove at the end of the connecting arm. The metal reinforcing shafts extending from both ends of the blade are inserted into the socket. After installing multiple blades, lock the annular limiting plate in the annular groove. The overall installation is convenient and easy to disassemble and maintain.

[0026] 4. By installing a circular placement platform, an annular cutter cylinder, a pressure plate, and an annular grinding plate, multiple blades are arranged on the circular placement platform. After the pressure plate descends to press the multiple blades, the annular cutter cylinder descends to cut off the parts of the blades that extend beyond the sides of the circular placement platform, so that the blade ends fit the circular window frame. Then, the annular cutter cylinder drives the annular grinding plate to rotate and grind the blade ends, which can quickly complete the cutting of the blade shape.

[0027] 5. By installing the shaft insertion mechanism and drilling mechanism, multiple metal reinforcing shafts of corresponding lengths are placed in the corresponding shaft insertion channels. The shaft insertion seat is moved to the right end to fit against the side wall of the circular placement platform. The third hydraulic cylinder is activated to push the arc-shaped push plate to move. The metal reinforcing shafts are then pushed into the corresponding blade channels by multiple push blocks, quickly completing the shaft insertion process. After the shafts are inserted, the radially moving drilling mechanism drills slots and insertion holes in the middle of multiple blades in sequence. Corresponding insertion holes are also drilled in the middle of the metal reinforcing shafts, resulting in high blade manufacturing efficiency. Attached Figure Description

[0028] Figure 1 This is a front view of the present invention;

[0029] Figure 2 This is a rear view of the present invention;

[0030] Figure 3 This is a rear view of the blade proposed in this invention;

[0031] Figure 4 This is a front view of the blade proposed in this invention;

[0032] Figure 5 This is a schematic diagram of the unscrewing mechanism and connecting component structure proposed in this invention;

[0033] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point A in the diagram;

[0034] Figure 7 This is a schematic diagram of the manufacturing apparatus proposed in this invention;

[0035] Figure 8 This is a schematic diagram of the drilling mechanism structure proposed in this invention;

[0036] Figure 9 This is a schematic diagram of the insertion shaft mechanism proposed in this invention;

[0037] Figure 10 This is a bottom view of the arc-shaped push plate proposed in this invention.

[0038] In the diagram: 1. Circular window, 2. Circular window frame, 3. Mounting beam, 4. Blade, 5. Screw, 6. Pin, 7. End baffle, 8. Annular groove, 9. Metal reinforcing shaft, 10. Annular limiting plate, 11. Bolt, 12. Sealing strip, 13. Connecting arm, 14. Slide rod, 15. Mounting groove, 16. Slider, 17. Socket, 18. Hole, 19. Slot, 20. Threaded groove, 21. Base, 22. Circular placement platform, 23. Insert shaft seat, 24. Bracket, 25. First hydraulic cylinder, 26. Second hydraulic cylinder, 27. Annular cutter barrel, 28. Annular plate, 29. First motor, 30. Gear, 31. Gear ring, 32. Annular grinding plate, 33. Pressure plate, 34. Radial groove, 35. Coarse drill bit, 36. Fine drill bit, 37. Third motor, 38. Cylinder, 39. Moving seat, 40. Threaded rod, 41. Second motor, 42. Arc-shaped push plate, 43. Insert shaft channel, 44. Third hydraulic cylinder, 45. Push block. Detailed Implementation

[0039] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0041] Reference Figure 1-6A blade assembly for a PVC foamed ventilation window includes a circular window 1, a circular window frame 2 rotatably connected inside the circular window 1, a vertically mounted mounting beam 3 fixedly connected to the front side of the circular window frame 2, end baffles 7 fixedly connected to the top and bottom of the circular window frame 2, and multiple blades 4 rotatably connected between the two end baffles 7 inside the circular window frame 2. A rotating mechanism is installed inside the mounting beam 3, capable of simultaneously rotating multiple blades 4. The rotating mechanism includes a mounting groove 15 located on the rear side of the mounting beam 3, and a sliding rod 14 that can slide up and down is installed in the mounting groove 15. The bottom of beam 3 is threaded with a screw rod 5. The upper end of the screw rod 5 extends into the mounting groove 15 and is rotatably connected to the lower end of the slide rod 14. Multiple sliders 16 are rotatably connected to the side wall of the slide rod 14. Each slider 16 corresponds to one of the multiple blades 4. Multiple connecting arms 13 are provided in the mounting groove 15. The sliders 16 are slidably mounted on the corresponding connecting arms 13. The ends of the connecting arms 13 are connected to the corresponding blades 4 through connecting components. By rotating the screw rod 5 in the forward or reverse direction, or by rotating the circular window frame 2, the ventilation needs of various situations can be met, and air can be directed to various areas of the room.

[0042] Specifically, the connecting assembly includes a slot 19 on the front side of the blade 4 for inserting the end of the connecting arm 13. The rear side of the blade 4 and the middle part of the metal reinforcing shaft 9 are provided with insertion holes 18 that communicate with the slot 19. The end of the connecting arm 13 is provided with a threaded groove 20 corresponding to the insertion hole 18. The rear side of the blade 4 is equipped with a bolt 11 that inserts into the insertion hole 18 and is threadedly connected to the threaded groove 20. When the end of the connecting arm 13 is inserted into the slot 19 of the blade 4, the bolt 11 passes through the insertion hole 18 of the blade 4 and the metal reinforcing shaft 9 and can be screwed into the threaded groove 20 at the end of the connecting arm 13, making installation convenient.

[0043] Furthermore, a pin 6 is installed at the bottom of the mounting beam 3, and pin slots for the pin 6 are provided at the bottom and on the right inner wall of the circular window 1. By rotating the entire circular window frame 2, the multiple blades 4 are in a vertical position, and then locked by the pin 6, the left and right wind directions can be adjusted.

[0044] Sealing strips 12 are bonded to both sides of the blade 4. A metal reinforcing shaft 9 is built into the blade 4. The two ends of the metal reinforcing shaft 9 extend out of the blade 4 and are rotatably installed on the inside of the circular window frame 2. After the blade 4 is closed, the sealing strips 12 press against each other, resulting in a good sealing effect. The metal reinforcing shaft 9 inserted into the blade 4 not only serves as the rotation shaft of the blade 4, but also strengthens the overall structural strength of the blade 4, making it less prone to bending.

[0045] Furthermore, the rear side of the circular window frame 2 is provided with an annular groove 8, and the left and right sides of the annular groove 8 are provided with multiple pairs of insertion ports 17 that are adapted to the ends of the metal reinforcing shafts 9. An annular limiting plate 10 is installed at the groove opening of the annular groove 8 to restrict the ends of the metal reinforcing shafts 9 within the insertion ports 17. After the installation of multiple blades 4 is completed, the annular limiting plate 10 is locked in the annular groove 8, and the metal reinforcing shafts 9 are locked in the insertion ports 17, so that they will not come off.

[0046] When installing blade 4, simply insert the end of connecting arm 13 into slot 19 of blade 4, and screw bolt 11 through the insertion hole 18 of blade 4 and metal reinforcing shaft 9 into threaded groove 20 at the end of connecting arm 13. Insert the metal reinforcing shaft 9 extending from both ends of blade 4 into insertion port 17. After installing multiple blades 4, lock the annular limiting plate 10 in annular groove 8. The overall installation is convenient and easy to disassemble and maintain.

[0047] When upward or downward ventilation is needed, simply rotate screw 5 in the forward or reverse direction to move slide bar 14 up or down. Through slider 16 and connecting arm 13, the blades 4 rotate forward or in the reverse direction around the metal reinforcing shaft 9, allowing air to blow upward or downward into the room through multiple blades 4. Alternatively, the entire circular window frame 2 can be rotated to make multiple blades 4 vertical. After locking with pin 6, the left and right wind directions can be adjusted to meet various ventilation needs and can direct airflow to different areas of the room.

[0048] Reference Figure 7-10 A manufacturing process for a blade assembly of a PVC foamed ventilation window is disclosed. The process utilizes a manufacturing device for a blade assembly of a PVC foamed ventilation window. The device includes a base 21 and a support 24. A circular placement platform 22 is fixedly installed on the base 21. A corresponding and liftable annular cutter cylinder 27 is installed below the support 24. A liftable pressure plate 33 is installed inside the annular cutter cylinder 27. An annular grinding plate 32 is embedded in the inner wall of the annular cutter cylinder 27. A radial groove 34 is provided on the circular placement platform 22. A radially movable drilling mechanism is installed inside the radial groove 34. A shaft insertion mechanism for simultaneously inserting multiple metal reinforcing shafts 9 into multiple blades 4 is also installed on the left side of the base 21.

[0049] The specific steps for manufacturing the blade assembly using the above-mentioned manufacturing device are as follows:

[0050] S1. Use an extruder to process PVC blades 4, with a channel reserved in the middle of the blades 4 for the metal reinforcing shaft 9 to pass through.

[0051] S2. Attach the sealing strips 12 of equal length to both sides of the blade 4, and then arrange multiple blades 4 on the circular placement platform 22.

[0052] S3. After the pressure plate 33 descends and presses down multiple blades 4, the annular cutter cylinder 27 descends and cuts off the part of the blades 4 that extends out of the circular placement platform 22, so that the end of the blades 4 fits the circular window frame 2. Then the annular cutter cylinder 27 drives the annular grinding plate 32 to rotate and grind the end of the blades 4.

[0053] S4. The multiple blades 4 with their ends cut off are kept in a compressed state, and multiple metal reinforcing shafts 9 are inserted into the channels of the blades 4 through the shaft insertion mechanism;

[0054] S5. After inserting the shaft, the radially moving drilling mechanism drills slots 19 and insertion holes 18 in the middle of multiple blades 4 in sequence, and also drills corresponding insertion holes 18 in the middle of the metal reinforcing shaft 9, thus completing the manufacturing process of blades 4.

[0055] Furthermore, two first hydraulic cylinders 25 are fixedly installed on the top two sides of the bracket 24. The telescopic ends of the first hydraulic cylinders 25 are fixedly connected to an annular plate 28. The annular cutter cylinder 27 is rotatably connected inside the annular plate 28. A second hydraulic cylinder 26 is also fixedly installed on the top of the bracket 24. The second hydraulic cylinder 26 extends into the annular cutter cylinder 27, and its telescopic end is fixedly connected to the pressure plate 33 through a connecting frame. When the first hydraulic cylinder 25 is activated, the pressure plate 33 is lowered through the annular plate 28 to press down multiple blades 4. Then, the second hydraulic cylinder 26 is activated, and the annular cutter cylinder 27 is lowered through the connecting frame to cut off the part of the blades 4 that extends out of the circular placement platform 22, so that the ends of the blades 4 are adapted to the circular window frame 2.

[0056] Furthermore, a first motor 29 is installed on the top of the annular plate 28. A gear 30 is fixedly connected to the output end of the first motor 29. A gear ring 31 that meshes with the gear 30 is fixed to the side wall of the annular cutter cylinder 27. When the first motor 29 is started, the gear 30 is driven to rotate, and the annular cutter cylinder 27 is driven to rotate through the gear ring 31, which in turn drives the annular grinding plate 32 to rotate and grind the end of the blade 4.

[0057] Specifically, the drilling mechanism includes a threaded rod 40 rotatably connected in a radial groove 34. A second motor 41 capable of rotating the threaded rod 40 is installed on the side wall of the circular placement platform 22. A movable seat 39 is threadedly connected to the threaded rod 40. A cylinder 38 is fixedly installed on the movable seat 39. A third motor 37 is fixedly installed at the telescopic end of the cylinder 38. A coarse drill bit 35 and a fine drill bit 36 ​​are fixedly connected to the output end of the third motor 37. When the second motor 41 is started, the threaded rod 40 rotates. The radially moving drilling mechanism passes through multiple blades 4 in sequence. When the cylinder 38 is started, the drill bit moves upward. When the third motor 37 is started, the coarse drill bit 35 and the fine drill bit 36 ​​rotate. Slots 19 and insertion holes 18 are drilled in the middle of the multiple blades 4. Corresponding insertion holes 18 are also drilled in the middle of the metal reinforcing shaft 9.

[0058] Specifically, the shaft insertion mechanism includes a shaft insertion seat 23 that can move left and right. The shaft insertion seat 23 is provided with multiple shaft insertion channels 43. A third hydraulic cylinder 44 is installed on the left side of the shaft insertion seat 23. An arc-shaped push plate 42 is fixedly connected to the telescopic end of the third hydraulic cylinder 44. Multiple push blocks 45 extending into the corresponding shaft insertion channels 43 are fixedly connected to the bottom of the arc-shaped push plate 42. When the third hydraulic cylinder 44 is activated, it pushes the arc-shaped push plate 42 to move, and the metal reinforcing shaft 9 can be pushed into the corresponding blade channel through the multiple push blocks 45, thus quickly completing the shaft insertion process.

[0059] Multiple blades 4 are arranged on a circular placement platform 22. The first hydraulic cylinder 25 is activated, which drives the pressure plate 33 to descend via the annular plate 28. After pressing the multiple blades 4, the second hydraulic cylinder 26 is activated, which drives the annular cutter cylinder 27 to descend via the connecting frame. The portion of the blades 4 extending beyond the sides of the circular placement platform 22 is cut off, so that the end of the blades 4 fits the circular window frame 2. The annular cutter cylinder 27 descends, so that the annular grinding plate 32 contacts the cut end of the blades 4. The first motor 29 is activated, which drives the gear 30 to rotate. The gear ring 31 drives the annular cutter cylinder 27 to rotate, which in turn drives the annular grinding plate 32 to rotate and grind the end of the blades 4. This allows for the rapid cutting of the blades 4.

[0060] After the excision, the annular cutter barrel 27 rises, placing multiple metal reinforcing shafts 9 of corresponding lengths into the corresponding shaft insertion channels 43, and moving the shaft insertion seat 23 to the right end to fit against the side wall of the circular placement platform 22. Figure 9 (As shown in the diagram), the third hydraulic cylinder 44 is activated to push the arc-shaped push plate 42 to move, which in turn pushes the metal reinforcing shaft 9 into the corresponding blade channel through multiple push blocks 45, quickly completing the shaft insertion process. After the shaft is inserted, the second motor 41 is activated to drive the threaded rod 40 to rotate. The radially moving drilling mechanism passes through multiple blades 4 in sequence. The cylinder 38 is activated to drive the drill bit to move upward, and the third motor 37 is activated to drive the coarse drill bit 35 and the fine drill bit 36 ​​to rotate, drilling slots 19 and insertion holes 18 in the middle of multiple blades 4. Similarly, the corresponding insertion holes 18 are drilled in the middle of the metal reinforcing shaft 9, resulting in high efficiency in blade 4 production.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A manufacturing process for a blade assembly of a PVC foamed ventilation window, characterized in that, The blade assembly of the PVC foamed ventilation window includes a circular window (1), a circular window frame (2) is rotatably connected inside the circular window (1), a vertically installed mounting beam (3) is fixedly connected to the front side of the circular window frame (2), and end baffles (7) are fixedly connected to the top and bottom of the circular window frame (2). Multiple blades (4) are rotatably connected between the two end baffles (7) inside the circular window frame (2). A rotating mechanism that can simultaneously drive multiple blades (4) to rotate open synchronously is installed inside the mounting beam (3). Sealing strips (12) are glued to both sides of the blades (4). A metal reinforcing shaft (9) is built into the blades (4). The two ends of the metal reinforcing shaft (9) extend out of the blades (4) and are rotatably installed inside the circular window frame (2). The process uses a device for manufacturing blade components of a PVC foamed ventilation window. The device includes a base (21) and a bracket (24). A circular placement platform (22) is fixedly installed on the base (21). A corresponding and liftable annular cutter cylinder (27) is installed below the bracket (24). A liftable pressure plate (33) is installed inside the annular cutter cylinder (27). An annular grinding plate (32) is embedded in the inner wall of the annular cutter cylinder (27). A radial groove (34) is provided on the circular placement platform (22). A radially movable drilling mechanism is installed in the radial groove (34). A shaft insertion mechanism for inserting multiple metal reinforcing shafts (9) into multiple blades (4) simultaneously is also installed on the left side of the base (21). The specific steps for manufacturing the blade assembly using the above-mentioned manufacturing device are as follows: S1. Use an extruder to process PVC blades (4), with a channel reserved in the middle of the blades (4) for the metal reinforcing shaft (9) to pass through. S2. Adhere sealing strips (12) of equal length to both sides of blade (4), and then arrange multiple blades (4) on a circular placement platform (22); S3. After the pressure plate (33) descends and presses down multiple blades (4), the annular cutter cylinder (27) descends and cuts off the part of the blades (4) that extends out of the circular placement platform (22) on both sides, so that the end of the blades (4) fits the circular window frame (2). Then the annular cutter cylinder (27) drives the annular grinding plate (32) to rotate and grind the end of the blades (4). S4. The multiple blades (4) at the cut ends are kept in a compressed state, and multiple metal reinforcing shafts (9) are inserted into the channels of the blades (4) through the shaft insertion mechanism; S5. After inserting the shaft, the radially moving drilling mechanism drills slots (19) and insertion holes (18) in the middle of multiple blades (4) in sequence, and drills corresponding insertion holes (18) in the middle of the metal reinforcing shaft (9) to complete the manufacturing process of the blades (4).

2. The manufacturing process of the blade assembly of a PVC foamed ventilation window according to claim 1, characterized in that, Two first hydraulic cylinders (25) are fixedly installed on the top two sides of the bracket (24). The telescopic end of the first hydraulic cylinder (25) is fixedly connected to an annular plate (28). The annular cutter cylinder (27) is rotatably connected inside the annular plate (28). A second hydraulic cylinder (26) is also fixedly installed on the top of the bracket (24). The second hydraulic cylinder (26) extends into the annular cutter cylinder (27), and its telescopic end is fixedly connected to the pressure plate (33) through a connecting frame.

3. The manufacturing process of the blade assembly of a PVC foamed ventilation window according to claim 2, characterized in that, The top of the annular plate (28) is equipped with a first motor (29), and the output end of the first motor (29) is fixedly connected to a gear (30). The side wall of the annular cutter barrel (27) is fixed with a gear ring (31) that meshes with the gear (30).

4. The manufacturing process of the blade assembly of a PVC foamed ventilation window according to claim 1, characterized in that, The drilling mechanism includes a threaded rod (40) rotatably connected in a radial groove (34). A second motor (41) capable of driving the threaded rod (40) to rotate is installed on the side wall of the circular placement platform (22). A movable seat (39) is threadedly connected to the threaded rod (40). A cylinder (38) is fixedly installed on the movable seat (39). A third motor (37) is fixedly installed at the telescopic end of the cylinder (38). A coarse drill bit (35) and a fine drill bit (36) are fixedly connected to the output end of the third motor (37).

5. The manufacturing process of the blade assembly of a PVC foamed ventilation window according to claim 1, characterized in that, The insertion shaft mechanism includes a left and right movable insertion shaft seat (23), the insertion shaft seat (23) is provided with multiple insertion shaft channels (43), a third hydraulic cylinder (44) is installed on the left side of the insertion shaft seat (23), the telescopic end of the third hydraulic cylinder (44) is fixedly connected to an arc-shaped push plate (42), and the bottom of the arc-shaped push plate (42) is fixedly connected to multiple push blocks (45) extending into the corresponding insertion shaft channels (43).

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