A plastic door and window corner cleaning device
By designing a corner cleaning device for plastic doors and windows that adapts to irregular cross-sections, the problem of difficult cleaning of weld seams in irregular cross-sections has been solved, achieving a stable and safe corner cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGYING DAMING NEW BUILDING MATERIALS CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-30
AI Technical Summary
Existing technologies are insufficient for effectively cleaning weld seams in irregularly shaped plastic doors and windows, resulting in poor cleaning performance and easy damage to the profiles.
A corner-cleaning device for plastic doors and windows was designed, comprising a grinding component, a support base, a limiting component, a pressure plate, and an extrusion component. Through the cooperation of the limiting component and the pressure plate, it can adapt to irregular cross-sections and achieve stable grinding.
It enables effective corner cleaning of irregularly shaped plastic doors and windows, improving the cleaning effect and avoiding damage to the profiles.
Smart Images

Figure CN224425120U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corner cleaning technology for doors and windows, specifically to a plastic corner cleaning device for doors and windows. Background Technology
[0002] After welding, raised weld seams form at the inner and outer corner joints of plastic door and window profiles, affecting the aesthetics, sealing performance, and subsequent installation of the doors and windows. Therefore, a corner cleaning machine is used to clean and grind the weld seams, making the corners of the doors and windows smooth and flat. Commonly used door and window corner cleaning equipment relies on two sets of parallel and symmetrically arranged grinding ends (such as milling cutters, grinding wheels, or scrapers), and uses a mechanical structure (such as lead screws or slide rails) to achieve synchronous adjustment of the spacing, in order to adapt to rectangular cross-section door and window profiles of different thicknesses.
[0003] During corner cleaning, the upper and lower grinding ends cut or grind the protruding weld seams. However, its applicability is limited. It is mainly for door and window profiles with standard rectangular cross-sections and is difficult to adapt to irregular cross-sections. For irregular door and window profiles with trapezoidal, polygonal, or beveled or non-right-angle transition cross-sections, the parallel working surface at the grinding end is difficult to fit the profile surface, resulting in poor weld seam cleaning effect and easy damage to other parts of the profile. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a plastic door and window corner clearing device to solve the difficulty in clearing corners of profiles with irregular cross-sections.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a plastic door and window corner clearing device, including a grinding component, a support base, a limiting component, a pressure plate, and an extrusion component. The grinding component is fixedly installed at the bottom of the support base, the limiting component is fixedly installed at the bottom of the support base, the pressure plate is slidably installed inside the support base, and the moving end and rotating end of the limiting component are slidably inserted into one side of the pressure plate. There are two sets of limiting components and pressure plates, which are respectively arranged on both sides of the grinding component. The extrusion component is arranged inside the support base, and the moving end of the extrusion component is slidably inserted into the other side of the pressure plate.
[0006] The grinding component includes a fixed plate, a first motor, a gear set, and a grinding wheel. The fixed plate is fixedly installed at the bottom of the support base, the first motor is fixedly installed at the top of the fixed plate, the gear set is located at the bottom of the fixed plate, and the grinding wheel is rotatably installed at the bottom of the fixed plate. The output end of the first motor is connected to the input end of the gear set, and the output end of the grinding wheel is connected to the gear set.
[0007] The limiting component includes a telescopic rod, a first spring, a connecting plate, and a lower limiting block. The tops of the telescopic rod and the first spring are fixedly connected to the bottom of the support base, and the bottoms of the telescopic rod and the first spring are fixedly connected to the connecting plate. The first spring is sleeved on the surface of the telescopic rod, and the lower limiting block is fixedly installed on the side of the connecting plate near the pressure plate.
[0008] The limiting component also includes a support plate, a rotating seat, and a limiting plate. There are two sets of rotating seats, one set is fixedly installed at the bottom of the connecting plate, and the other set is fixedly installed at the top of the support plate. A sliding rod is fixedly installed inside the rotating seat and is rotatably connected to the rotating seat at the bottom of the connecting plate. The limiting plate is fixedly installed at the end of the sliding rod near the pressure plate.
[0009] The pressure plate includes a plate body, a second spring, an upper limit groove, a lower limit groove, and a slider. The plate body is slidably installed inside the support base. One end of the second spring is connected to the side of the plate body near the limiting member, and the other end of the second spring is connected to the inside of the support base. An upper limit groove is provided on the side of the plate body away from the limiting member, and a lower limit groove is provided on the side of the plate body near the limiting member. A slider is slidably installed on the surface of the plate body, and the slider is slidably connected to the inside of the support base.
[0010] The inner walls of the upper and lower limit grooves are provided with anti-slip layers, the contact surfaces of the limiting member and the lower limit groove are provided with anti-slip layers, and the contact surfaces of the extrusion member and the upper limit groove are provided with anti-slip layers.
[0011] The extrusion component includes a second motor, a rotating shaft, and a transmission wheel. The second motor is fixedly installed on the top of the support base, the rotating shaft is rotatably installed inside the support base, and the output end of the second motor passes through the top of the support base and is connected to the rotating shaft. The transmission wheel is fixedly sleeved on the surface of the rotating shaft.
[0012] The extrusion component also includes a slide plate, a clamping plate, and an upper limit block. The slide plate is slidably installed inside the support base, the clamping plate is fixedly installed at one end of the slide plate near the rotating shaft, and the upper limit block is fixedly installed at the other end of the slide plate. The clamping plate and the transmission wheel are meshed together.
[0013] The beneficial effects of this utility model are as follows:
[0014] This invention uses a first spring to push the connecting plate downwards, pulling the telescopic rod to extend and causing the support plate to move towards the plastic door / window. A rotating seat allows relative rotation between the connecting plate and the support plate, enabling the support plate to fit against the inclined surface of the plastic door / window when the device is pulled closer by the traction equipment. When the grinding end of the grinding piece contacts the weld seam of the plastic door / window, the support plate contacts the surface of the plastic door / window, providing auxiliary support for the grinding piece. The traction equipment moves the device, allowing for safer and more stable corner cleaning of the plastic door / window by controlling the grinding piece. A second motor drives the rotating shaft and transmission wheel to rotate, causing the clamping plate meshing with the transmission wheel to move towards the pressure plate. This causes the upper limit block to insert into the upper limit groove, pushing the pressure plate to slide inside the support seat until the lower limit block and the limit plate are both inserted into the lower limit groove. The anti-slip layer on the surface restricts the extension and retraction of the telescopic rod and the rotation at the rotating seat, achieving rapid positioning and fixing of the limiting components. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a front view schematic diagram of the present invention;
[0017] Figure 3 This is a first partial cross-sectional view of the present invention;
[0018] Figure 4 This is a second partial sectional view of the present invention;
[0019] Figure 5 yes Figure 4 Enlarged diagram of part A in the diagram;
[0020] Figure 6 This is a schematic diagram of the third part of the structure of this utility model.
[0021] Reference numerals in the attached drawings: 1. Support base; 2. Grinding component; 201. Fixing plate; 202. First motor; 203. Gear set; 204. Grinding wheel; 3. Limiting component; 301. Telescopic rod; 302. First spring; 303. Connecting plate; 304. Lower limit block; 305. Support plate; 306. Rotating seat; 307. Limiting disc; 4. Pressure plate; 401. Plate body; 402. Second spring; 403. Upper limit groove; 404. Lower limit groove; 405. Slider; 5. Extrusion component; 501. Second motor; 502. Rotating shaft; 503. Transmission wheel; 504. Slide plate; 505. Clamping plate; 506. Upper limit block. Detailed Implementation
[0022] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.
[0023] Figures 1-6 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 - Appendix Figure 6 The present invention will be further described below.
[0024] A plastic door and window corner clearing device includes a grinding component 2, a support base 1, a limiting component 3, a pressure plate 4, and an extrusion component 5. The grinding component 2 is fixedly installed at the bottom of the support base 1, the limiting component 3 is fixedly installed at the bottom of the support base 1, the pressure plate 4 is slidably installed inside the support base 1, and the moving end and rotating end of the limiting component 3 are slidably inserted into one side of the pressure plate 4. There are two sets of limiting components 3 and pressure plates 4, which are respectively arranged on both sides of the grinding component 2. The extrusion component 5 is arranged inside the support base 1, and the moving end of the extrusion component 5 is slidably inserted into the other side of the pressure plate 4.
[0025] Specifically, the corners of the plastic doors and windows are cleaned by the grinding part 2, the surface of the plastic doors and windows is adhered to by the limiting part 3, and the pressure plate 4 is pushed by the extrusion part 5 so that it contacts the moving end and rotating end of the limiting part 3, thereby restricting the extension, contraction and rotation of the limiting part 3.
[0026] The grinding component 2 includes a fixed plate 201, a first motor 202, a gear set 203, and a grinding wheel 204. The fixed plate 201 is fixedly installed on the bottom of the support base 1, the first motor 202 is fixedly installed on the top of the fixed plate 201, the gear set 203 is disposed on the bottom of the fixed plate 201, and the grinding wheel 204 is rotatably installed on the bottom of the fixed plate 201. The output end of the first motor 202 is connected to the input end of the gear set 203, and the output end of the grinding wheel 204 is connected to the gear set 203.
[0027] Specifically, the output of the first motor 202 drives the gear set 203 to rotate, and through the transmission of the gear set 203, the grinding wheel 204 rotates, thereby cleaning the corners of the plastic doors and windows.
[0028] The limiting component 3 includes a telescopic rod 301, a first spring 302, a connecting plate 303, and a lower limiting block 304. The tops of the telescopic rod 301 and the first spring 302 are fixedly connected to the bottom of the support base 1, and the bottoms of the telescopic rod 301 and the first spring 302 are fixedly connected to the connecting plate 303. The first spring 302 is sleeved on the surface of the telescopic rod 301, and the lower limiting block 304 is fixedly installed on the side of the connecting plate 303 near the pressure plate 4.
[0029] Specifically, the first spring 302 applies a pushing force to the connecting plate 303, causing the support plate 305 to approach the plastic door and window. The lower limit block 304 is connected to the lower limit groove 404, thereby restricting the extension and retraction of the telescopic rod 301.
[0030] The limiting component 3 also includes a support plate 305, a rotating seat 306, and a limiting plate 307. There are two sets of rotating seats 306, one set is fixedly installed at the bottom of the connecting plate 303, and the other set is fixedly installed at the top of the support plate 305. A sliding rod is fixedly installed inside the rotating seat 306 and is rotatably connected to the rotating seat 306 at the bottom of the connecting plate 303. The limiting plate 307 is fixedly installed at the end of the sliding rod near the pressure plate 4.
[0031] Specifically, the connecting plate 303 and the support plate 305 can rotate relative to each other by means of the rotating seat 306, and the relative rotation of the connecting plate 303 and the support plate 305 is restricted by the connection of the limiting plate 307 and the lower limiting groove 404.
[0032] The pressure plate 4 includes a plate body 401, a second spring 402, an upper limit groove 403, a lower limit groove 404, and a slider 405. The plate body 401 is slidably installed inside the support base 1. One end of the second spring 402 is connected to the side of the plate body 401 near the limiting member 3, and the other end of the second spring 402 is connected to the inside of the support base 1. The upper limit groove 403 is provided on the side of the plate body 401 away from the limiting member 3, and the lower limit groove 404 is provided on the side of the plate body 401 near the limiting member 3. The slider 405 is slidably installed on the surface of the plate body 401, and the slider 405 is slidably connected to the inside of the support base 1.
[0033] Specifically, the second spring 402 pushes the plate 401 to leave a gap between the lower limit block 304, the limit plate 307 and the lower limit groove 404, so that when the limit member 3 needs to be adjusted to fit the plastic door and window surface, the pressure plate 4 will not hinder the extension and rotation of the limit member 3. The upper limit groove 403 and the lower limit groove 404 will restrict the sliding of the pressure plate 4 inside the support base 1. The pressure plate 4 restricts the movement and rotation of the limit member 3. The slider 405 supports the plate 401 to slide stably in the vertical and horizontal directions inside the support base 1.
[0034] The inner walls of the upper limit groove 403 and the lower limit groove 404 are provided with anti-slip layers, the surfaces of the lower limit block 304 and the limit disk 307 are provided with anti-slip layers, and the surface of the upper limit block 506 is provided with an anti-slip layer.
[0035] Specifically, through the anti-slip layer of the lower limit block 304, the limit plate 307, the upper limit groove 403, the lower limit groove 404 and the upper limit block 506, the connection between the extrusion part 5 and the pressure plate 4 can restrict the free sliding of the pressure plate 4, and the connection between the limit part 3 and the pressure plate 4 can restrict the free extension and rotation of the limit part 3.
[0036] The extrusion component 5 includes a second motor 501, a rotating shaft 502, and a transmission wheel 503. The second motor 501 is fixedly installed on the top of the support base 1, the rotating shaft 502 is rotatably installed inside the support base 1, and the output end of the second motor 501 passes through the top of the support base 1 and is connected to the rotating shaft 502. The transmission wheel 503 is fixedly sleeved on the surface of the rotating shaft 502.
[0037] Specifically, the second motor 501 drives the rotating shaft 502 and the transmission wheel 503 to rotate, thereby pushing the card plate 505 to move inside the support base 1.
[0038] The extrusion component 5 also includes a slide plate 504, a clamping plate 505, and an upper limit block 506. The slide plate 504 is slidably installed inside the support base 1. The clamping plate 505 is fixedly installed at one end of the slide plate 504 near the rotating shaft 502. The upper limit block 506 is fixedly installed at the other end of the slide plate 504. The clamping plate 505 and the transmission wheel 503 are meshed together.
[0039] Specifically, the movement of the card plate 505 causes the upper limit block 506 at the other end of the slide plate 504 to connect with the pressure plate 4, pushing the pressure plate 4 to move until the upper limit block 506 can be tightly attached to the inner wall of the upper limit groove 403, and the lower limit block 304 and the limit plate 307 can be tightly attached to the inner wall of the lower limit groove 404.
[0040] In summary: When using this utility model, the worker clamps and fixes the plastic door / window to be cleaned on the workbench. For plastic doors / windows with sloping surfaces on the top and bottom sides, the traction device is first driven to move the device close to the surface of the plastic door / window, so that the support plate 305 contacts its sloping surface. Before the grinding wheel 204 contacts the sloping surface, the device continues to be pushed closer to the plastic door / window. The first spring 302 is compressed, the telescopic rod 301 retracts, and the connecting plate 303 moves. The connecting plate 303 and the support plate 305 rotate relative to each other through the rotating seat 306 and the sliding rod between them, until the grinding wheel 204 contacts the sloping surface. The pushing device stops moving, and the second motor 501 drives the rotating shaft 502 and the transmission wheel 503 to rotate. Through the meshing transmission wheel 503 and the clamping plate 505, the sliding plate 504 is pushed to the other side. The upper limit block 506 at one end is inserted into the upper limit groove 403, pushing the plate 401 to slide inside the support base 1 until the upper limit block 506 is in close contact with the inner wall of the upper limit groove 403. The lower limit block 304 and the limit plate 307 are both in close contact with the inner wall of the lower limit groove 404. The extrusion piece 5 limits and fixes the free sliding of the pressure plate 4 inside the support base 1. The pressure plate 4 limits and fixes the free extension and rotation of the limit piece 3, completing the rapid adjustment of the limit piece 3 to adapt to the inclined surface of the plastic door and window. Subsequently, the traction equipment can be used to move the device so that the support plate 305 fits against its inclined surface and the grinding wheel 204 fits against its weld. The first motor 202 drives the gear set 203 to rotate, transmitting the rotation to the grinding wheel 204 to perform rapid grinding and corner clearing treatment on the plastic door and window.
[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.
Claims
1. A plastic door and window corner cleaning device, comprising a grinding component (2), characterized in that, It also includes a support base (1), a limiting member (3), a pressure plate (4) and an extrusion member (5). The grinding member (2) is fixedly installed at the bottom of the support base (1), the limiting member (3) is fixedly installed at the bottom of the support base (1), the pressure plate (4) is slidably installed inside the support base (1), the moving end and the rotating end of the limiting member (3) are slidably inserted into one side of the pressure plate (4), the number of limiting members (3) and pressure plates (4) is two sets, and they are respectively set on both sides of the grinding member (2), the extrusion member (5) is set inside the support base (1), and the moving end of the extrusion member (5) is slidably inserted into the other side of the pressure plate (4).
2. The plastic door and window corner clearing device according to claim 1, characterized in that, The grinding component (2) includes a fixed plate (201), a first motor (202), a gear set (203), and a grinding wheel (204). The fixed plate (201) is fixedly installed at the bottom of the support base (1), the first motor (202) is fixedly installed at the top of the fixed plate (201), the gear set (203) is located at the bottom of the fixed plate (201), and the grinding wheel (204) is rotatably installed at the bottom of the fixed plate (201). The output end of the first motor (202) is connected to the input end of the gear set (203), and the output end of the grinding wheel (204) is connected to the gear set (203).
3. A plastic door and window corner clearing device according to claim 1, characterized in that, The limiting component (3) includes a telescopic rod (301), a first spring (302), a connecting plate (303), and a lower limiting block (304). The tops of the telescopic rod (301) and the first spring (302) are fixedly connected to the bottom of the support base (1), and the bottoms of the telescopic rod (301) and the first spring (302) are fixedly connected to the connecting plate (303). The first spring (302) is sleeved on the surface of the telescopic rod (301), and the lower limiting block (304) is fixedly installed on the side of the connecting plate (303) near the pressure plate (4).
4. A plastic door and window corner clearing device according to claim 3, characterized in that, The limiting component (3) also includes a support plate (305), a rotating seat (306), and a limiting plate (307). There are two sets of rotating seats (306), one set is fixedly installed at the bottom of the connecting plate (303), and the other set is fixedly installed at the top of the support plate (305). A sliding rod is fixedly installed inside the rotating seat (306) and is rotatably connected to the rotating seat (306) at the bottom of the connecting plate (303). The limiting plate (307) is fixedly installed at the end of the sliding rod near the pressure plate (4).
5. A plastic door and window corner clearing device according to claim 1, characterized in that, The pressure plate (4) includes a plate body (401), a second spring (402), an upper limit groove (403), a lower limit groove (404), and a slider (405). The plate body (401) is slidably installed inside the support base (1). One end of the second spring (402) is connected to the side of the plate body (401) near the limiting member (3), and the other end of the second spring (402) is connected to the inside of the support base (1). An upper limit groove (403) is provided on the side of the plate body (401) away from the limiting member (3), and a lower limit groove (404) is provided on the side of the plate body (401) near the limiting member (3). A slider (405) is slidably installed on the surface of the plate body (401), and the slider (405) is slidably connected to the inside of the support base (1).
6. A plastic door and window corner clearing device according to claim 5, characterized in that, The inner walls of the upper limit groove (403) and the lower limit groove (404) are provided with anti-slip layers, the contact surfaces of the limiting member (3) and the lower limit groove (404) are provided with anti-slip layers, and the contact surfaces of the extrusion member (5) and the upper limit groove (403) are provided with anti-slip layers.
7. A plastic door and window corner clearing device according to claim 1, characterized in that, The extrusion component (5) includes a second motor (501), a rotating shaft (502), and a transmission wheel (503). The second motor (501) is fixedly installed on the top of the support base (1), the rotating shaft (502) is rotatably installed inside the support base (1), and the output end of the second motor (501) passes through the top of the support base (1) and is connected to the rotating shaft (502). The transmission wheel (503) is fixedly sleeved on the surface of the rotating shaft (502).
8. A plastic door and window corner clearing device according to claim 7, characterized in that, The extrusion component (5) also includes a slide plate (504), a clamping plate (505), and an upper limit block (506). The slide plate (504) is slidably installed inside the support base (1). The clamping plate (505) is fixedly installed at one end of the slide plate (504) near the rotating shaft (502). The upper limit block (506) is fixedly installed at the other end of the slide plate (504). The clamping plate (505) and the transmission wheel (503) are meshed together.