Polishing device for wooden fireproof door processing

By combining a closed design with a dust collection system, the problems of poor dust collection and inconvenient loading and unloading of materials in wooden fire door polishing devices have been solved, achieving an efficient polishing process and a clean working environment.

CN223961094UActive Publication Date: 2026-03-03TONGLING SHIDA FIRE DOOR CO LTD
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Patent Information

Application Number
CN202520584323.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-03-03
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

Existing wooden fire door polishing devices have poor dust collection and are open-type, which makes it easy for dust to spread and inconvenient to load and unload materials.

Method used

Design a closed polishing device that combines a sealed polishing chamber and a dust hood with a vacuum cleaner. The door panel is clamped and polished by a telescopic cylinder and an electric telescopic rod. Stable clamping is achieved by a bidirectional threaded rod and a clamping head. An observation window ensures airtightness and facilitates maintenance.

Benefits of technology

It effectively prevents the spread of waste chips during polishing, improves the cleanliness of the working environment, simplifies the loading and unloading process, and enhances work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

A polishing device for wooden fireproof door machining comprises a shell, a polishing table and a polishing mechanism, a polishing bin is arranged on the upper portion of the shell, a feeding bin is arranged on the lower portion of the shell, a movable groove is formed between the polishing bin and the feeding bin in the shell, a feeding opening is formed in the position, on the lower portion of the shell, of the feeding bin, a telescopic air cylinder is installed in the feeding bin, and a polishing mechanism is installed on the polishing table. A mounting plate is arranged at the bottom of the grinding table and connected with the top end of the telescopic air cylinder, the upper portion face of the grinding table is matched with the movable groove, the upper portion face of the grinding table is located in the grinding bin through the movable groove, a clamping mechanism is arranged in the grinding table, and the polishing mechanism is arranged in the grinding bin and located above the grinding table. The polishing mechanism is composed of a first electric telescopic rod, a lifting plate, a polishing cover and a polishing wheel, and a dust suction pipe externally connected with a dust collector is connected into the polishing cover. The device has the advantages of preventing waste chips from polluting the environment, facilitating feeding and discharging and the like.
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Description

Technical Field

[0001] This utility model relates to the field of polishing technology, and in particular to a polishing device for processing wooden fire doors. Background Technology

[0002] During the production and processing of wooden fire doors, a layer of paint needs to be sprayed onto the surface of the fire door. In order to facilitate the adhesion of the paint and make the surface of the fire door smooth, the fire door needs to be polished first.

[0003] For example, patent application number CN202223374526.5 discloses a polishing device for processing wooden fire doors. When the device is in use, it employs a first motor 15. The output end of the first motor 15 is fixedly connected to a threaded rod 10. The threaded rod 10 is threadedly connected to a threaded sleeve 16, and a movable plate 22 is fixedly connected to the outer surface of the threaded sleeve 16. Furthermore, a sliding rod 8 is installed between the first support columns 3, and the movable plate is connected to the sliding rod 8. When the first motor 15 operates, it drives the threaded sleeve 16 to move the limiting frame 22, thus performing… Parallel movement is achieved because the electric telescopic rod 17 is fixedly connected to the movable plate 22, which in turn is fixedly connected to the limiting frame 18. The limiting frame 18 is fixedly connected to the support block 20, which is movably connected to the grinding roller 21. A second motor 19 is installed, with its output end movably connected to the grinding roller 21. The second base 5 is fixedly connected to the second support column 4, and the clamping bed 6 is fixedly connected to the second base 5. The clamping lock 7 is movably connected to the clamping bed, allowing for the clamping of the fire door to be processed, thus facilitating grinding. Because the filter screen 13 is fixedly connected to the first base 1, larger wood chips can be blocked. A vacuum cleaner 11 is installed, with its suction port fixedly connected to the pipe 12, which in turn is fixedly connected to the first base 1. During processing, dust generated by the vacuum cleaner 11 can be significantly reduced by its operation.

[0004] In actual use, this polishing equipment has a very poor dust collection effect. Moreover, since the equipment is open, once the dust floats to the outside, the vacuum cleaner has difficulty collecting it effectively. In addition, the equipment is relatively tall, making it difficult to load and unload materials. Therefore, there is room for improvement. Utility Model Content

[0005] This invention provides a polishing device for processing wooden fire doors to solve the problems mentioned in the background art.

[0006] To address the aforementioned problems, this utility model provides a polishing device for processing wooden fire doors, comprising a housing, a polishing table, and a polishing mechanism. The upper part of the housing is a polishing chamber, and the lower part is a feeding chamber. A movable groove is provided between the polishing chamber and the feeding chamber inside the housing. A feeding port is provided at the feeding chamber at the lower part of the housing. A telescopic cylinder is installed inside the feeding chamber. A mounting plate is provided at the bottom of the polishing table, and the mounting plate is connected to the top of the telescopic cylinder. The upper surface of the polishing table matches the movable groove, and the upper surface of the polishing table is located within the polishing chamber through the movable groove. A clamping mechanism is provided in the polishing table. The polishing mechanism is located inside the polishing chamber and above the polishing table. The polishing mechanism consists of a first electric telescopic rod, a lifting plate, a polishing cover, and a polishing wheel. The first electric telescopic rod is installed on the top of the housing, with its telescopic end located inside the polishing chamber. The lifting plate is installed on the telescopic end of the first electric telescopic rod. A reciprocating screw is rotatably installed inside the lifting plate, and a first motor is installed at one end of the reciprocating screw. First guide rods are installed on both sides of the reciprocating screw inside the lifting plate. A slider is slidably connected inside the lifting plate, and the slider is threadedly connected to the reciprocating screw and slidably connected to the first guide rods. The polishing cover is installed below the slider. The polishing wheel is rotatably installed inside the polishing cover and connected to a second motor. A vacuum cleaner suction pipe is connected to the polishing cover.

[0007] Preferably, the housing has an observation window on one side of the grinding chamber hinge.

[0008] Preferably, the clamping mechanism consists of a movable plate, a clamping head, a bidirectional threaded rod, and a third motor. Two movable cavities are symmetrically arranged on the upper surface of the grinding table, with two movable plates each located within one cavity. The bidirectional threaded rod is rotatably mounted within a cavity, and one end is connected to the third motor. A second guide rod is provided on each side of the bidirectional threaded rod within the grinding table. The two movable plates are threadedly connected to the bidirectional threaded rod and slidably connected to the second guide rods. Two L-shaped plates are symmetrically fixed on the movable plates outside the second guide rods. Four guide grooves are symmetrically formed on the upper surface of the grinding table, located directly above the L-shaped plates. The clamping head is connected to the L-shaped plates by bolts and slidably connected to the guide grooves. A movable groove is formed in the upper part of the guide groove, and a baffle that blocks the guide groove is slidably arranged within the movable groove, with one end of the baffle fixedly connected to the end of the L-shaped plate located within the guide groove.

[0009] Preferably, two anti-collision posts are symmetrically arranged on both sides of the grinding table, and the top of the anti-collision posts is provided with a rubber anti-collision pad.

[0010] Preferably, the mounting plate has two symmetrically opened limiting grooves on both sides, and the feeding bin has symmetrically arranged limiting posts on both sides of the telescopic cylinder that are slidably connected to the limiting grooves.

[0011] Preferably, an auxiliary frame is provided at the feeding port of the outer feeding hopper of the shell.

[0012] The beneficial effects of adopting the above technical solutions are:

[0013] 1. The door panel to be polished is fed into the polishing table through the auxiliary frame. The second motor drives the bidirectional threaded rod to rotate, which drives the movable plate to move in opposite directions. This allows the clamping head to clamp the door panel from both sides, making it easier to clamp door panels of different sizes and ensuring stable polishing. Since the clamping head is connected to the L-shaped plate by bolts, it is also easy to clamp door panels of different thicknesses.

[0014] 2. The door panel held on the grinding table is positioned in the grinding chamber by the lifting and lowering of the mounting plate driven by the telescopic cylinder. The grinding mechanism performs polishing operations. Since the grinding chamber is sealed, it prevents the spread of waste chips generated during grinding. Then, a vacuum cleaner is used in conjunction with the polishing cover to remove the waste chips generated during polishing.

[0015] 3. The grinding table is raised and lowered by a telescopic cylinder. After polishing, the grinding table returns to the loading hopper, making it easy to take out the polished door panel from the loading port. This facilitates loading and unloading and improves work efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the grinding table in this utility model.

[0019] Figure 4 This is a cross-sectional three-dimensional structural diagram of the grinding table in this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the grinding mechanism of this utility model.

[0021] Wherein: 1-Shell; 11-Grinding chamber; 111-Observation window; 12-Feeding chamber; 13-Moving groove; 14-Feeding port; 15-Telescopic cylinder; 16-Mounting plate; 17-Limiting groove; 18-Limiting column; 19-Auxiliary frame; 2-Grinding table; 21-Cavity; 22-Guide groove; 221-Moving groove; 23-Anti-collision column; 24-Anti-collision pad; 3-Grinding mechanism; 31-First electric telescopic rod; 32-Lifting plate; 33-Polishing cover; 34-Polishing wheel; 35-Reciprocating screw; 36-First motor; 37-First guide rod; 38-Slider; 39-Second motor; 4-Clamping mechanism; 41-Moving plate; 42-Clamping head; 43-Bidirectional threaded rod; 44-Third motor; 45-Second guide rod; 46-L-shaped plate; 47-Baffle. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, a movable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figure 1-5In this embodiment, a polishing device for processing wooden fire doors includes a housing 1, a polishing table 2, and a polishing mechanism 3. The upper part of the housing 1 is a polishing chamber 11, and the lower part is a feeding chamber 12. A movable groove 13 is provided between the polishing chamber 11 and the feeding chamber 12 inside the housing 1. A feeding port 14 is opened at the feeding chamber 12 at the lower part of the housing 1. A telescopic cylinder 15 is installed in the feeding chamber 12. The bottom of the polishing table 2 is provided with a mounting plate 16, and the mounting plate 16 is connected to the top of the telescopic cylinder 15. The upper surface of the polishing table 2 matches the movable groove 13, and the upper surface of the polishing table 2 is located in the polishing chamber 11 through the movable groove 13. A clamping mechanism 4 is provided in the polishing table 2. The polishing mechanism 4 is located in the polishing chamber 12 and above the polishing table 2. The polishing mechanism 3 consists of a first... The system comprises an electric telescopic rod 31, a lifting plate 32, a polishing cover 33, and a polishing wheel 34. The first electric telescopic rod 31 is installed on the top of the housing 1, and its telescopic end is located inside the polishing chamber 11. The lifting plate 32 is installed on the telescopic end of the first electric telescopic rod 31. A reciprocating screw 35 is rotatably installed inside the lifting plate 32, and a first motor 36 is installed at one end of the reciprocating screw 35. First guide rods 37 are installed on both sides of the reciprocating screw 35 inside the lifting plate 32. A slider 38 is slidably connected inside the lifting plate 32, and the slider 38 is threadedly connected to the reciprocating screw 35 and slidably connected to the first guide rods 37. The polishing cover 33 is installed below the slider 38. The polishing wheel 34 is rotatably installed inside the polishing cover 33 and connected to a second motor 39. A vacuum cleaner pipe 5 of an external vacuum cleaner is connected to the polishing cover 33.

[0026] Using the above technical solution, the door panel to be polished is fed into the polishing table 2 in the loading bin 12 inside the housing 1. At this time, the clamping mechanism 4 in the polishing table 2 works to clamp the door panel in the polishing table 2. The operation of the telescopic cylinder 15 lifts the polishing table 2, so that the upper surface of the polishing table 2 passes through the movable groove 13 into the polishing chamber 11. Then, the first electric telescopic rod 31 in the polishing mechanism 3 drives the lifting plate 32 to move down, so that the polishing wheel 34 abuts against the door panel. The first motor 36 drives the reciprocating screw 35 to rotate, which cooperates with the first guide rod 37 to make the door panel rotate. The slider 38 moves within the lifting plate 32, causing the polishing cover 33 to move. Simultaneously, the second motor 39 drives the polishing wheel 34 to rotate, thus completing the polishing operation. Waste generated during polishing is removed by an external dust collection device in conjunction with the dust collection pipe 5 and the polishing cover 33, preventing the waste from spreading. Furthermore, since the grinding chamber 11 is sealed, the spread of waste is further prevented from polluting the working environment. After polishing is completed, the telescopic cylinder 15 drives the grinding table 2 to descend, placing the door panel inside the loading chamber 12. The loading port 14 facilitates loading and unloading, improving work efficiency.

[0027] Preferably, the housing 1 has an observation window 111 hinged on one side of the grinding chamber 11.

[0028] Through the above technical solution, the observation window 111 is used to ensure the sealing of the polishing chamber 11, while facilitating the observation of the polishing process and the inspection of the interior.

[0029] Preferably, the clamping mechanism 4 consists of a movable plate 41, a clamping head 42, a bidirectional threaded rod 43, and a third motor 44. Two movable cavities 21 are symmetrically arranged on the upper surface of the grinding table 2, and two movable plates 41 are respectively disposed within one movable cavity 21. The bidirectional threaded rod 43 is rotatably disposed within the cavity 21, and one end is connected to the third motor 44. A second guide rod 45 is respectively provided on both sides of the bidirectional threaded rod 43 within the grinding table 2. The two movable plates 41 are threadedly connected to the bidirectional threaded rod 43 and slide against the second guide rods 45. The movable plate 41 has two L-shaped plates 46 symmetrically fixed on the outside of the second guide rod 45. The upper surface of the grinding table 2 has four guide grooves 22 symmetrically opened on the upper surface of the L-shaped plates 46. The clamping head 42 is connected to the L-shaped plates 46 by bolts, and the clamping head 42 is slidably connected to the guide grooves 22. The upper part of the guide groove 22 has a moving groove 221. A baffle 47 that blocks the guide groove 22 is slidably installed in the moving groove 221, and one end of the baffle 47 is fixedly connected to one end of the L-shaped plate 46 located in the guide groove 22.

[0030] With the above technical solution, when the wooden board is placed on the sanding table 2, the third motor 44 in the clamping mechanism 4 drives the bidirectional threaded rod 43 to rotate, so that the two movable plates 41 move in the movable cavity 21 respectively, thereby driving the clamping head 42 to move towards each other, clamping the door panel from both sides to ensure the stability of the clamping. The clamping head 42 and the L-shaped plate 46 are bolted together, which makes it easy to replace. The clamping head 42 is matched with the thickness of the door panel, so that the clamping head 42 will not hinder the polishing of the door panel, and it is also easy to unload the material. The baffle 47 and the moving groove 221 are set so that the baffle 47 can move, thereby sealing the guide groove 22 to prevent the waste from falling into the guide groove 22 during sanding, which is easy to clean.

[0031] Preferably, two anti-collision posts 23 are symmetrically arranged on both sides of the grinding table 2, and the top of the anti-collision posts 23 is provided with a rubber anti-collision pad 24.

[0032] Through the above technical solution, the cooperation of the anti-collision post 23 and the anti-collision pad 24 prevents the third motor 44 in the grinding table 2 from hitting the housing 1 when the grinding table 2 is raised and lowered.

[0033] Preferably, the mounting plate 16 has two symmetrically opened limiting grooves 17 on both sides, and the feeding bin 12 has symmetrically provided limiting posts 18 on both sides of the telescopic cylinder 15 that are slidably connected to the limiting grooves 17.

[0034] Through the above technical solution, the limiting post 18, in conjunction with the limiting groove 17, can make the grinding table 2 move more stably.

[0035] Preferably, an auxiliary frame 19 is provided at the external feeding port 14 of the housing 1.

[0036] The above technical solution facilitates loading and unloading by setting up the loading port 14 and the auxiliary frame 19.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate this utility model and are not intended to limit the technical solutions described in this utility model. Therefore, although this specification has described this utility model in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model, and all technical solutions and improvements that do not depart from the spirit and scope of this utility model should be covered within the scope of the claims of this utility model; technologies not described in detail in this utility model are implemented using existing technologies.

Claims

1. A polishing device for processing wooden fire doors, comprising a housing, a polishing table, and a polishing mechanism, characterized in that: The upper part of the housing is a grinding chamber, and the lower part is a feeding chamber. A movable groove is provided between the grinding chamber and the feeding chamber inside the housing. A feeding port is provided at the feeding chamber at the lower part of the housing. A telescopic cylinder is installed inside the feeding chamber. A mounting plate is provided at the bottom of the grinding table, and the mounting plate is connected to the top of the telescopic cylinder. The upper surface of the grinding table matches the movable groove, and the upper surface of the grinding table is located inside the grinding chamber through the movable groove. A clamping mechanism is provided in the grinding table. The polishing mechanism is located inside the grinding chamber and above the grinding table. The polishing mechanism consists of a first electric telescopic rod, a lifting plate, a polishing cover, and a polishing sleeve. The polishing assembly consists of a first electric telescopic rod mounted on the top of the housing, with its telescopic end located inside the polishing chamber. A lifting plate is mounted on the telescopic end of the first electric telescopic rod. A reciprocating screw is rotatably mounted inside the lifting plate, with a first motor mounted on one end of the reciprocating screw. First guide rods are mounted on both sides of the reciprocating screw inside the lifting plate. A slider is slidably connected inside the lifting plate, and the slider is threadedly connected to the reciprocating screw and slidably connected to the first guide rods. A polishing cover is mounted below the slider. A polishing wheel is rotatably mounted inside the polishing cover and connected to a second motor. A vacuum cleaner hose is connected to the polishing cover.

2. The polishing device for processing wooden fire doors according to claim 1, characterized in that: The housing has an observation window hinged on one side of the grinding chamber.

3. The polishing device for processing wooden fire doors according to claim 1, characterized in that: The clamping mechanism consists of a movable plate, a clamping head, a bidirectional threaded rod, and a third motor. Two movable cavities are symmetrically arranged on the upper surface of the grinding table, with two movable plates each located within one cavity. The bidirectional threaded rod is rotatably mounted within a cavity, and one end is connected to the third motor. A second guide rod is located on each side of the bidirectional threaded rod within the grinding table. The two movable plates are threadedly connected to the bidirectional threaded rod and slidably connected to the second guide rods. Two L-shaped plates are symmetrically fixed to the movable plates outside the second guide rods. Four guide grooves are symmetrically formed on the upper surface of the grinding table, located directly above the L-shaped plates. The clamping head is connected to the L-shaped plates by bolts and slidably connected to the guide grooves. A movable groove is formed in the upper part of the guide groove, and a baffle that blocks the guide groove is slidably mounted within the movable groove, with one end of the baffle fixedly connected to the end of the L-shaped plate located within the guide groove.

4. The polishing device for processing wooden fire doors according to claim 1, characterized in that: Two anti-collision pillars are symmetrically arranged on both sides of the grinding table, and the top of the anti-collision pillars is equipped with rubber anti-collision pads.

5. A polishing device for processing wooden fire doors according to claim 1, characterized in that: The mounting plate has two symmetrically spaced limiting grooves on both sides, and the feeding bin has symmetrically spaced limiting posts that are slidably connected to the limiting grooves on both sides of the telescopic cylinder.

6. A polishing device for processing wooden fire doors according to claim 1, characterized in that: An auxiliary frame is provided at the feeding port of the outer casing's feeding hopper.

Citation Information

Patent Citations

  • Polishing device for wooden fireproof door processing

    CN219152483U