Flexible sander for security doors
By introducing lifting and power components into the flexible polishing machine for security doors, automatic cleaning of the filter screen is achieved, solving the problem of the filter screen being difficult to clean and improving work efficiency.
Patent Information
- Application Number
- CN202522012113.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-18
AI Technical Summary
The filters of existing flexible polishing machines for security doors are difficult to clean, which affects work efficiency.
A cleaning mechanism was designed, including a lifting component and a power component. The lifting motor drives the lead screw to move the slider and the mounting bracket. Combined with a rotary motor and a gear and rack structure, the sliding plate is intermittently driven to strike the filter plate, thereby realizing the automatic cleaning of the filter plate.
It improves the cleaning efficiency of the filter screen, reduces the steps of disassembly and installation, and increases work efficiency.
Smart Images

Figure CN224674514U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of security door processing, and in particular to a flexible polishing machine for security doors. Background Technology
[0002] With the increasing awareness of security, security doors have been widely used. During the production process, security doors need to be polished. For example, after the raw materials are cut or stamped, there may be burrs and flash on the edges, or after welding, there will usually be slag and uneven weld seams at the weld. All of these need to be polished. Flexible polishing is an advanced surface treatment technology, mainly used for processing complex shapes or sensitive materials. Compared with traditional rigid polishing methods, flexible polishing has the characteristics of strong adaptability, reduced damage, and improved efficiency. Flexible polishing tools are usually made of flexible materials, such as foam, sponge, and elastic abrasive. These materials can deform when pressure is applied, thereby better conforming to the surface of the workpiece.
[0003] A search of Chinese Patent Publication No. CN220217751U reveals a precision flexible polishing machine for security doors. A third motor drives a fan to rotate, and the polishing debris is collected by a collection pipe onto the surface of a filter screen. The flexible polishing device and lifting device allow for thorough polishing of the security door's surface texture, resulting in better polishing effects. A worktable and soft pad secure the security door during polishing, enabling more precise polishing without affecting subsequent processing. Simultaneously, the collection of polishing debris ensures a safe working environment.
[0004] However, the filter screen is not easy to clean inside the collection box, and removing it for cleaning requires disassembly and installation, which affects work efficiency. Utility Model Content
[0005] The purpose of this invention is to provide a flexible polishing machine for security doors in order to solve the above-mentioned problems.
[0006] This utility model achieves the above objectives through the following technical solutions:
[0007] A flexible polishing machine for security doors includes a base with a mounting groove on the top. A conveyor belt is installed in the mounting groove. A polishing box is fixedly connected to the top of the base. Inlet and outlet are located on both sides of the polishing box, and dustproof cloths are fixedly connected to the inlet and outlet. A polishing mechanism is installed inside the polishing box, and a filtering mechanism is installed behind the polishing box. The filtering mechanism includes a dust collection box fixedly connected to the rear side of the polishing box. A filter plate is slidably connected inside the dust collection box. A cleaning mechanism is installed behind the filter plate. The cleaning mechanism includes a mounting frame that slides up and down along the inner wall of the dust collection box. The mounting frame is U-shaped with its opening facing the filter plate. A sliding plate is slidably connected between the inner walls of the mounting frame. A storage spring is fixedly connected between the sliding plate and the mounting frame. Several hammers are fixedly connected to the side of the sliding plate near the filter plate. The cleaning mechanism also includes a lifting component and a power component. The power component is used to intermittently drive the sliding plate to move away from the filter plate.
[0008] Preferably, the lifting assembly includes a lifting motor fixedly connected to the top of the dust collector, the output end of the lifting motor is connected to a lead screw via a coupling, the lead screw is rotatably connected between the upper and lower inner walls of the dust collector, a slider is threaded onto the lead screw, and a mounting bracket is fixedly connected to the front side of the slider.
[0009] Preferably, the power assembly includes a rack fixedly connected to the side of the slide away from the filter plate, a clearance hole is provided on the mounting frame, the rack passes through the clearance hole, and two vertical plates are fixedly connected to the mounting frame. A rotary motor is fixedly connected to one of the vertical plates, and a half gear is fixedly connected to the output end of the rotary motor. The half gear meshes with the rack.
[0010] Preferably, the filtration mechanism further includes an exhaust fan fixedly connected to the rear side of the dust collection box, an exhaust pipe fixedly connected to the front side of the dust collection box, the other end of the exhaust pipe extending into the grinding box, a placement seat fixedly connected to the bottom of the dust collection box, a pull-out drawer slidably connected inside the placement seat, and a discharge port communicating with the placement seat on the inner bottom wall of the dust collection box, the discharge port being located on the front side of the filter plate.
[0011] Preferably, the grinding mechanism includes a hydraulic cylinder fixedly connected to the top of the grinding box, and a mounting box located inside the grinding box is fixedly connected to the bottom end of the hydraulic cylinder. The bottom of the mounting box is open, and a grinding motor is fixedly connected to the inner top wall of the mounting box. A mounting plate is fixedly connected to the output end of the grinding motor. A grinding disc is connected to the bottom of the mounting plate through an elastic element, and a soft pad is fixedly connected to the bottom of the grinding disc.
[0012] Preferably, the elastic element includes a slide rod that slides up and down along the mounting plate. A grinding disc is fixedly connected to the bottom end of the slide rod, and the top end of the slide rod extends out of the mounting plate and is fixedly connected to a limit block. A first spring is connected between the grinding disc and the mounting plate and is wound around the outer periphery of the slide rod.
[0013] The beneficial effects are as follows: while the lifting component drives the mounting frame to move up and down, the power component drives the sliding plate to move intermittently away from the filter screen. After the stored spring is released, the sliding plate drives the hammer to strike the filter plate, which facilitates the cleaning of the filter plate and improves work efficiency.
[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the overall structure of a flexible polishing machine for security doors as described in this utility model;
[0017] Figure 2 This is a top view of a flexible polishing machine for security doors as described in this utility model;
[0018] Figure 3 This is a right view of a flexible polishing machine for security doors as described in this utility model;
[0019] Figure 4 This is a front view of the internal structure of the grinding box of a flexible grinding machine for security doors as described in this utility model;
[0020] Figure 5 This is a schematic diagram of the internal structure of the dust removal box of a flexible polishing machine for security doors as described in this utility model;
[0021] Figure 6 This utility model describes a flexible polishing machine for security doors. Figure 5 Enlarged view of point A.
[0022] The reference numerals in the attached drawings are explained as follows: 1. Base; 101. Conveyor belt; 2. Grinding box; 201. Dustproof cloth; 301. Hydraulic cylinder; 302. Mounting box; 303. Grinding motor; 304. Mounting plate; 305. Grinding disc; 306. Soft pad; 401. Slide rod; 402. Limit block; 501. Dust collection box; 502. Exhaust fan; 503. Filter plate; 504. Exhaust pipe; 505. Placement seat; 506. Drawer; 601. Lifting motor; 602. Lead screw; 603. Slider; 604. Mounting bracket; 605. Slide plate; 606. Hammer; 607. Storage spring; 701. Rack; 702. Vertical plate; 703. Rotary motor; 704. Half gear. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] The present invention will be further described below with reference to the accompanying drawings:
[0026] like Figures 1-6 As shown, a flexible polishing machine for security doors includes a base 1. The top of the base 1 has an installation groove, and a conveyor belt 101 is installed in the installation groove. The power device for the conveyor belt 101 is a conveyor motor, etc. A polishing box 2 is bolted to the top of the base 1. The polishing box 2 has inlets and outlets on both sides. Dustproof cloths 201 are fixedly connected to the inlets and outlets. By setting the dustproof cloths 201, the amount of polishing debris flying out of the polishing box 2 is reduced.
[0027] The grinding box 2 is equipped with a grinding mechanism, which includes a hydraulic cylinder 301 fixedly connected to the top of the grinding box 2. The bottom end of the hydraulic cylinder 301 is fixedly connected to a mounting box 302 located inside the grinding box 2. The bottom of the mounting box 302 is open. A grinding motor 303 is bolted to the inner top wall of the mounting box 302. A mounting plate 304 is fixedly connected to the output end of the grinding motor 303. A grinding disc 305 is connected to the bottom of the mounting plate 304 through an elastic element. A soft pad 306 is fixedly connected to the bottom of the grinding disc 305. The soft pad 306 is a soft sponge wrapped with sandpaper.
[0028] The elastic element includes a slide rod 401, which slides up and down along the mounting plate 304. A grinding disc 305 is fixedly connected to the bottom end of the slide rod 401. The top end of the slide rod 401 extends out of the mounting plate 304 and is fixedly connected to a limit block 402. A first spring is connected between the grinding disc 305 and the mounting plate 304. The first spring is wound around the outer periphery of the slide rod 401. By setting the first spring, the grinding disc 305 and the soft pad 306 can better conform to the shape of the door panel, thereby improving the grinding efficiency.
[0029] A filtration mechanism is provided at the rear of the grinding box 2. The filtration mechanism includes a dust collector 501 bolted to the rear of the grinding box 2. A filter plate 503 is slidably connected inside the dust collector 501. The top of the filter plate 503 extends out of the dust collector 501. The filtration mechanism also includes an exhaust fan 502 bolted to the rear of the dust collector 501. An exhaust pipe 504 is fixedly connected to the front of the dust collector 501. The other end of the exhaust pipe 504 extends into the grinding box 2. A placement seat 505 is fixedly connected to the bottom of the dust collector 501. A pull-out drawer 506 is slidably connected inside the placement seat 505. A discharge port communicating with the placement seat 505 is opened on the inner bottom wall of the dust collector 501. The discharge port is located in front of the filter plate 503.
[0030] A cleaning mechanism is provided behind the filter plate 503. The cleaning mechanism includes a mounting frame 604. The mounting frame 604 slides up and down along the inner wall of the dust collection box 501. The mounting frame 604 is U-shaped with its opening facing the filter plate 503. A sliding plate 605 is slidably connected between the inner walls of the mounting frame 604. A storage spring 607 is fixedly connected between the sliding plate 605 and the mounting frame 604. Several hammers 606 that abut against the filter plate 503 are fixedly connected to the side of the sliding plate 605 near the filter plate 503.
[0031] The cleaning mechanism also includes a lifting assembly, which includes a lifting motor 601 bolted to the top of the dust collection box 501. The output end of the lifting motor 601 is connected to a lead screw 602 via a coupling. The lead screw 602 is rotatably connected between the upper and lower inner walls of the dust collection box 501. A slider 603 is threaded onto the lead screw 602. A mounting bracket 604 is fixedly connected to the front side of the slider 603.
[0032] The cleaning mechanism also includes a power component, which is used to intermittently drive the slide plate 605 to move away from the filter plate 503. The power component includes a rack 701 fixedly connected to the side of the slide plate 605 away from the filter plate 503. A clearance hole is provided on the mounting bracket 604, through which the rack 701 passes. Two vertical plates 702 are fixedly connected to the mounting bracket 604. A rotary motor 703 is fixedly connected to one of the vertical plates 702. A half gear 704 is fixedly connected to the output end of the rotary motor 703, and the half gear 704 meshes with the rack 701.
[0033] Working Principle: During use, the door panel is conveyed by the conveyor belt 101. After the door panel is conveyed to the bottom of the grinding mechanism, the grinding motor 303 is started. The grinding motor 303 drives the mounting plate 304 to rotate the grinding disc 305 and the soft pad 306. The hydraulic cylinder 301 is controlled to move the mounting box 302 downward. After the soft pad 306 abuts against the door panel, grinding begins. At the same time, the exhaust fan 502 is started, and the grinding debris generated is drawn into the dust collection box 501 through the exhaust pipe 504. The debris is filtered by the filter plate 503. After grinding is completed, the exhaust fan 502 is turned off, and the lifting motor 601 is started. The lifting motor 601 drives the lead screw 602 to rotate, and the lead screw 602 drives the slider 603 to move the mounting frame 6. 04. Move downwards. At the same time, start the rotary motor 703. The rotary motor 703 drives the half gear 704 to rotate. When half of the toothed half gear 704 meshes with the rack 701, the half gear 704 drives the rack 701 to move the slide plate 605 away from the filter plate 503. The storage spring 607 stores energy. When half of the toothed half gear 704 rotates away, the rack 701 loses its driving force. Under the action of the elastic force of the storage spring 607, the slide plate 605 quickly drives the hammer 606 to move closer to the filter plate 503. The hammer 606 strikes the filter plate 503, causing the debris on the filter plate 503 to fall into the drawer 506, which facilitates cleaning of the filter plate 503 and improves work efficiency.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A flexible polishing machine for security doors, comprising a base (1), wherein the top of the base (1) is provided with an installation groove, and a conveyor belt (101) is provided in the installation groove; a polishing box (2) is fixedly connected to the top of the base (1); an inlet and outlet are provided on both sides of the polishing box (2), and a dustproof cloth (201) is fixedly connected in the inlet and outlet; a polishing mechanism is provided in the polishing box (2); a filtering mechanism is provided at the rear of the polishing box (2); the filtering mechanism includes a dust collection box (501) fixedly connected to the rear side of the polishing box (2); and a filter plate (503) is slidably connected in the dust collection box (501), characterized in that: A cleaning mechanism is provided behind the filter plate (503). The cleaning mechanism includes a mounting frame (604), which slides up and down along the inner wall of the dust collector (501). The mounting frame (604) is U-shaped with its opening facing the filter plate (503). A sliding plate (605) is slidably connected between the inner walls of the mounting frame (604). A storage spring (607) is fixedly connected between the sliding plate (605) and the mounting frame (604). Several hammers (606) are fixedly connected to the side of the sliding plate (605) near the filter plate (503). The cleaning mechanism also includes a lifting component and a power component. The power component is used to intermittently drive the sliding plate (605) to move away from the filter plate (503).
2. The flexible polishing machine for security doors according to claim 1, characterized in that: The lifting assembly includes a lifting motor (601) fixedly connected to the top of the dust collector (501). The output end of the lifting motor (601) is connected to a lead screw (602) via a coupling. The lead screw (602) is rotatably connected between the upper and lower inner walls of the dust collector (501). A slider (603) is threaded onto the lead screw (602). The mounting bracket (604) is fixedly connected to the front side of the slider (603).
3. The flexible polishing machine for security doors according to claim 1, characterized in that: The power assembly includes a rack (701) fixedly connected to the side of the slide plate (605) away from the filter plate (503). The mounting bracket (604) has a clearance hole through which the rack (701) passes. Two vertical plates (702) are fixedly connected to the mounting bracket (604). A rotary motor (703) is fixedly connected to one of the vertical plates (702). A half gear (704) is fixedly connected to the output end of the rotary motor (703). The half gear (704) meshes with the rack (701).
4. The flexible polishing machine for security doors according to claim 1, characterized in that: The filtration mechanism also includes an exhaust fan (502) fixedly connected to the rear side of the dust collection box (501), an exhaust pipe (504) fixedly connected to the front side of the dust collection box (501), the other end of the exhaust pipe (504) extending into the grinding box (2), a placement seat (505) fixedly connected to the bottom of the dust collection box (501), a pull-out drawer (506) slidably connected inside the placement seat (505), and a discharge port communicating with the placement seat (505) is opened on the inner bottom wall of the dust collection box (501), the discharge port being located on the front side of the filter plate (503).
5. A flexible polishing machine for security doors according to claim 1, characterized in that: The grinding mechanism includes a hydraulic cylinder (301) fixedly connected to the top of the grinding box (2). The bottom end of the hydraulic cylinder (301) is fixedly connected to a mounting box (302) located inside the grinding box (2). The bottom of the mounting box (302) is open. A grinding motor (303) is fixedly connected to the inner top wall of the mounting box (302). The output end of the grinding motor (303) is fixedly connected to a mounting plate (304). The bottom of the mounting plate (304) is connected to a grinding disc (305) through an elastic element. A soft pad (306) is fixedly connected to the bottom of the grinding disc (305).
6. A flexible polishing machine for security doors according to claim 5, characterized in that: The elastic element includes a slide rod (401) that slides up and down along the mounting plate (304). The grinding disc (305) is fixedly connected to the bottom end of the slide rod (401). The top end of the slide rod (401) extends out of the mounting plate (304) and is fixedly connected to a limit block (402). A first spring is connected between the grinding disc (305) and the mounting plate (304), and the first spring is wound around the outer periphery of the slide rod (401).
Citation Information
Patent Citations
Precise flexible grinding machine device for security door
CN220217751U