A feeding device for cutting PVC window and door frames
By introducing a support box and a motor-driven adjusting screw clamping mechanism into the PVC window and door frame cutting device, the problem of unstable feeding of window and door frames was solved, achieving stable clamping and height adjustment, and improving feeding efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI HONGSHAN PLASTICS CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-30
AI Technical Summary
The existing PVC window and door frame cutting equipment lacks effective clamping and fixing during the feeding process, resulting in unstable feeding and affecting cutting efficiency.
The system employs a support box and adjustment plate structure, combined with a motor-driven adjustment screw and clamping mechanism. The motor drives the screw to rotate, achieving stable clamping and height adjustment of the door and window frame. The clamping plate and pressure plate are used to fix the door and window frame.
This improved the stability and efficiency of the door and window frame during the feeding process, ensuring the continuity and efficient operation of the cutting process.
Smart Images

Figure CN224425753U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PVC window and door technology, specifically to a feeding device for cutting PVC window and door frames. Background Technology
[0002] Doors are an essential component of buildings. Traditional doors were made of stone or wood. With advancements in science and technology, glass doors, steel doors, aluminum alloy doors, and plastic doors have emerged. Due to their lightweight, high strength, fire resistance, corrosion resistance, water resistance, and insect resistance, plastic doors show promising prospects for development and application.
[0003] A search revealed that Chinese utility model patent CN219404554U discloses a high-efficiency feeding device for cutting PVC window and door frames. The device includes a receiving platform, a transmission component, and two sets of receiving boxes. The receiving platform is positioned on one side of the cutting device to receive the cut PVC window and door frames. The receiving platform has a front-to-back orientation. The transmission component is positioned on the receiving platform and transports the PVC window and door frames to be fed along the front-to-back direction. The two sets of receiving boxes are respectively positioned on the front and rear sides of the receiving platform. The upper end of each receiving box is open and used to receive the PVC window and door frames transmitted by the transmission component. Rollers are provided at the lower end of each receiving box. This high-efficiency feeding device for cutting PVC window and door frames allows the entire cutting and feeding process to continue without stopping the machine, reducing manpower and significantly improving cutting efficiency. While the device pushes the windows and doors by moving a pusher plate, in actual use, the inconvenience of clamping and fixing the window and door frames reduces the stability of the feeding process. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a feeding device for cutting PVC window and door frames, which solves the problem of clamping and fixing window and door frames in existing technologies.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for cutting PVC door and window frames, comprising a support box, wherein an adjustment plate is installed on the top of the support box through a height adjustment mechanism;
[0008] The top of the adjusting plate has an adjusting groove. A first motor is fixedly connected to one end of the adjusting plate. An adjusting screw is fixedly connected to the output end of the first motor. One end of the adjusting screw extends into the interior of the adjusting groove and is rotatably connected to the end inside the adjusting groove. An adjusting sleeve is screwed onto the outer wall of the adjusting screw. A movable plate is fixedly connected to the top of the adjusting sleeve. Two mounting plates are fixedly connected to the top of the movable plate. Limiting plates are fixedly connected to both ends of the adjusting plate. A limiting through groove is opened at one end of each of the two limiting through grooves. A limiting slider is slidably connected inside each of the two limiting through grooves. One end of each of the two limiting sliders is fixedly connected to one end of each of the two mounting plates. An adjusting through hole is opened at one end of each of the two mounting plates. A pushing and clamping mechanism is installed inside each of the two adjusting through holes.
[0009] Preferably, the height adjustment mechanism includes two connecting plates, the top ends of the two connecting plates are fixedly connected to the bottom end of the adjustment plate, and two first electric push rods are fixedly installed between the bottom end of the support box and the bottom end of the adjustment plate.
[0010] Preferably, the pushing and clamping mechanism includes a second motor, one end of which is fixedly connected to one end of the limiting slider. A rotating screw is fixedly connected to the output end of the second motor. A rotating sleeve is screwed onto the outer wall of the rotating screw. A pushing cylinder is fixedly connected to the outer wall of the rotating sleeve. A clamping plate is fixedly connected to one end of the pushing cylinder. A clamping block is fixedly connected to the top end of the clamping plate. A second electric push rod is fixedly connected to the top end of the clamping block. The bottom end of the second electric push rod extends to the bottom end of the clamping plate and is fixedly connected to a lower pressure plate.
[0011] Preferably, a sponge layer is fixedly connected to one end of the lower pressure plate and one end of the clamping plate, and stable feet are fixedly connected to the four corners of the bottom of the support box.
[0012] Preferably, the top of the movable plate is provided with a movable groove, and two movable sliders are slidably connected inside the movable groove. The top ends of the two movable sliders are respectively fixedly connected to the bottom ends of the two clamping plates.
[0013] Preferably, both ends of the support box are provided with support slots, and support sliders are slidably connected inside the two support slots. One end of each of the two support sliders is fixedly connected to one end of the two connecting plates.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides a feeding device for cutting PVC door and window frames, which has the following advantages:
[0016] This feeding device for cutting PVC window and door frames works by placing the window or door frame on top of two movable plates. Upon energizing a second motor, the output of the second motor drives a rotating screw to rotate, which in turn moves a rotating sleeve via a threaded connection. During this movement, the rotating sleeve moves the push cylinder and clamping plate, clamping and fixing the window or door frame on both sides. Then, activated by a second electric push rod, the lower pressure plate moves, contacting the outer wall of the window or door frame and further improving the stability of the clamping and fixing. Compared to existing technologies, this device improves the efficiency of feeding window and door frames by using the clamping plate and lower pressure plate to stably clamp and fix the frame. Attached Figure Description
[0017] Figure 1 This is a front view structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the left-side cross-sectional structure of this utility model;
[0019] Figure 3 This is a frontal cross-sectional view of the present invention.
[0020] Figure 4 This is a front view cross-sectional structural diagram of the pushing and clamping mechanism of this utility model;
[0021] Figure 5 This utility model Figure 2 A magnified view of the structure at point A in the middle;
[0022] Figure 6 This utility model Figure 4 A magnified schematic diagram of the structure at point B in the middle.
[0023] In the diagram: 1. Support box; 2. Adjusting plate; 3. First motor; 4. Adjusting screw; 5. Adjusting sleeve; 6. Moving plate; 7. Mounting plate; 8. Limiting plate; 9. Limiting slider; 10. Connecting plate; 11. First electric push rod; 12. Second motor; 13. Rotating screw; 14. Rotating sleeve; 15. Push cylinder; 16. Clamping plate; 17. Clamping block; 18. Second electric push rod; 19. Lower pressure plate; 20. Sponge layer; 21. Stabilizing foot; 22. Moving slider; 23. Support slider. Detailed Implementation
[0024] Please see Figure 2A feeding device for cutting PVC window and door frames includes a support box 1. An adjustment plate 2 is installed on the top of the support box 1 through a height adjustment mechanism. The height adjustment mechanism includes two connecting plates 10. The tops of the two connecting plates 10 are fixedly connected to the bottom of the adjustment plate 2. Two first electric push rods 11 are fixedly installed between the bottom of the support box 1 and the bottom of the adjustment plate 2. When the second electric push rod 18 is activated, the moving plate 6 will be moved away from the support box 1, so as to realize the free adjustment of the feeding height of the window and door frame.
[0025] Please see Figure 2 , Figure 4 , Figure 5 and Figure 6The top of the adjusting plate 2 has an adjusting groove. A first motor 3 is fixedly connected to one end of the adjusting plate 2. An adjusting screw 4 is fixedly connected to the output end of the first motor 3. One end of the adjusting screw 4 extends into the adjusting groove and is rotatably connected to the end inside the adjusting groove. An adjusting screw sleeve 5 is screwed onto the outer wall of the adjusting screw 4. A movable plate 6 is fixedly connected to the top of the adjusting screw sleeve 5. Two mounting plates 7 are fixedly connected to the top of the movable plate 6. Limiting plates 8 are fixedly connected to both ends of the adjusting plate 2. Limiting slots are formed at one end of each limiting plate 8. Both mounting plates 7 and mounting plates 7 have internal sliding limit sliders 9. One end of each limit slider 9 is fixedly connected to one end of each mounting plate 7. Each mounting plate 7 has an adjustment through hole, and a pushing and clamping mechanism is installed inside each adjustment through hole. The pushing and clamping mechanism includes a second motor 12. One end of the second motor 12 is fixedly connected to one end of the limit slider 9. A rotating screw 13 is fixedly connected to the output end of the second motor 12. A rotating sleeve 14 is screwed onto the outer wall of the rotating screw 13. A pushing cylinder 15 is fixedly connected to the outer wall of the rotating sleeve 14. A clamping plate 16 is fixedly connected to one end of the clamping plate 16. A clamping block 17 is fixedly connected to the top of the clamping plate 16. A second electric push rod 18 is fixedly connected to the top of the clamping block 17. The bottom end of the second electric push rod 18 extends to the bottom end of the clamping plate 16 and is fixedly connected to a lower pressure plate 19. After the door or window is placed on the top of the two movable plates 6, the output end of the second motor 12 drives the rotating screw 13 to rotate, and drives the rotating screw sleeve 14 to move through the thread. During the movement, the rotating screw sleeve 14 drives the push cylinder 15 and the clamping plate 16. The position is moved and the two sides of the door and window are clamped and fixed. At this time, under the start of the second electric push rod 18, the lower pressure plate 19 will be moved. The lower pressure plate 19 will contact the outer wall of the door and window frame and further improve the stability of clamping and fixing the door and window frame. Under the power-on start of the first motor 3, the output end of the first motor 3 will drive the adjusting screw 4 to rotate, and drive the adjusting screw sleeve 5 to move through the thread, and drive the moving plate 6 to move. Through the convenient movement of the moving plate 6, the stable feeding movement of the door and window frame is realized.
[0026] Please see Figure 1 A sponge layer 20 is fixedly connected to one end of the lower pressure plate 19 and one end of the clamping plate 16. Stable support feet 21 are fixedly connected to the four corners of the bottom of the support box 1 to support the overall device and increase the height of the overall device.
[0027] Please see Figure 5 The top of the movable plate 6 is provided with a movable groove, and two movable sliders 22 are slidably connected inside the movable groove. The tops of the two movable sliders 22 are respectively fixedly connected to the bottoms of the two clamping plates 16 to restrict the movement of the clamping plates 16 and improve the stability of the movement of the clamping plates 16.
[0028] Please refer to Figure 3. Support slots are provided at both ends of the support box 1. Support sliders 23 are slidably connected inside the two support slots. One end of each support slider 23 is fixedly connected to one end of each of the two connecting plates 10, thereby restricting the movement of the connecting plates 10. When the second electric push rod 18 moves the position of the adjusting plate 2, the movement stability is improved by the restriction of the connecting plates 10 and the support sliders 23.
[0029] In summary, when using this PVC window and door frame cutting feeding device, the window or door frame is first placed on top of the two movable plates 6. Then, after the second motor 12 is powered on, its output drives the rotating screw 13 to rotate, which in turn drives the rotating sleeve 14 to move via the thread. During this movement, the rotating sleeve 14 moves the push cylinder 15 and the clamping plate 16, clamping and fixing the sides of the window or door. Then, after the second electric push rod 18 is activated, it moves the lower pressure plate 19, which then connects to... The mechanism touches the outer wall of the door and window frame, further improving the stability of clamping and fixing the door and window frame. After the first motor 3 is powered on, the output end of the first motor 3 will drive the adjusting screw 4 to rotate, and through the thread, drive the adjusting screw sleeve 5 to move, which in turn drives the moving plate 6 to move. Through the convenient movement of the moving plate 6, the stable feeding movement of the door and window frame is achieved. After the second electric push rod 18 is activated, the moving plate 6 will be moved away from the support box 1, so that the feeding height of the door and window frame can be freely adjusted.
Claims
1. A feeding device for cutting PVC window and door frames, comprising a support box (1), characterized in that: The top of the support box (1) is equipped with an adjustment plate (2) through a height adjustment mechanism; The top of the adjusting plate (2) is provided with an adjusting groove. One end of the adjusting plate (2) is fixedly connected to a first motor (3). The output end of the first motor (3) is fixedly connected to an adjusting screw (4). One end of the adjusting screw (4) extends into the interior of the adjusting groove and is rotatably connected to one end inside the adjusting groove. An adjusting screw sleeve (5) is screwed onto the outer wall of the adjusting screw (4). A moving plate (6) is fixedly connected to the top of the adjusting screw sleeve (5). Two mounting plates (7) are fixedly connected to the top of the moving plate (6). Limiting plates (8) are fixedly connected to both ends of the adjusting plate (2). Limiting slots are provided at one end of each of the two limiting plates (8). Limiting sliders (9) are slidably connected inside the two limiting slots. One end of each of the two limiting sliders (9) is fixedly connected to one end of each of the two mounting plates (7). Adjusting holes are provided at one end of each of the two mounting plates (7). Pushing and clamping mechanisms are installed inside the two adjusting holes.
2. The feeding device for cutting PVC door and window frames according to claim 1, characterized in that: The height adjustment mechanism includes two connecting plates (10), the top ends of the two connecting plates (10) are fixedly connected to the bottom end of the adjustment plate (2), and two first electric push rods (11) are fixedly installed between the bottom end of the support box (1) and the bottom end of the adjustment plate (2).
3. The feeding device for cutting PVC door and window frames according to claim 2, characterized in that: The pushing and clamping mechanism includes a second motor (12), one end of which is fixedly connected to one end of a limiting slider (9). A rotating screw (13) is fixedly connected to the output end of the second motor (12). A rotating sleeve (14) is screwed onto the outer wall of the rotating screw (13). A pushing cylinder (15) is fixedly connected to the outer wall of the rotating sleeve (14). A clamping plate (16) is fixedly connected to one end of the pushing cylinder (15). A clamping block (17) is fixedly connected to the top end of the clamping plate (16). A second electric push rod (18) is fixedly connected to the top end of the clamping block (17). The bottom end of the second electric push rod (18) extends to the bottom end of the clamping plate (16) and is fixedly connected to a lower pressure plate (19).
4. The feeding device for cutting PVC door and window frames according to claim 3, characterized in that: One end of the lower pressure plate (19) and one end of the clamping plate (16) are both fixedly connected to a sponge layer (20), and the four corners of the bottom of the support box (1) are all fixedly connected to stable feet (21).
5. The feeding device for cutting PVC door and window frames according to claim 4, characterized in that: The top of the movable plate (6) is provided with a movable groove, and two movable sliders (22) are slidably connected inside the movable groove. The tops of the two movable sliders (22) are respectively fixedly connected to the bottoms of the two clamping plates (16).
6. The feeding device for cutting PVC door and window frames according to claim 5, characterized in that: Both ends of the support box (1) are provided with support slots, and support sliders (23) are slidably connected inside the two support slots. One end of the two support sliders (23) is fixedly connected to one end of the two connecting plates (10).