Metal door polishing device

Abstract

The utility model relates to the technical field of machining, in particular to a metal door polishing device which comprises a rack, a conveying unit, a polishing rolling shaft and a clamping driving unit, the polishing rolling shaft is rotatably installed on the clamping driving unit, and the clamping driving unit is installed on the rack and drives the polishing rolling shaft to move so as to clamp or release a metal door. The moving direction of the clamping driving unit is perpendicular to the conveying direction of the conveying unit. Through linkage cooperation of the conveying unit, the clamping driving unit and the grinding rolling shaft, the automatic continuous grinding process is formed, the metal door can automatically enter the grinding station under conveying of the conveying unit, grinding is completed, output is achieved, manual intervention is not needed, the production efficiency is greatly improved, and the manual operation intensity and the labor cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a metal door grinding device. Background Technology

[0002] In the metal door manufacturing industry, sanding and dusting are crucial processes before painting, directly impacting the surface quality and durability of the metal door. Sanding removes burrs, oxide layers, and processing marks from the metal door surface, resulting in a smooth and even surface; dusting removes debris and dust generated during sanding, providing a clean base for subsequent painting. With the increasing demand for metal doors from industries such as building decoration and security, efficient and high-quality sanding and dusting processes have become core elements in ensuring production efficiency and product quality.

[0003] However, current metal door grinding and dust removal technologies have many limitations. Traditional manual grinding methods are extremely inefficient and cannot meet the needs of large-scale production. Moreover, the large amount of dust generated during the grinding process seriously threatens the health of operators and pollutes the workshop and surrounding environment. At the same time, the instability of manual operation makes it difficult to unify the grinding depth and force, resulting in poor flatness and consistency of the metal door surface, which affects the subsequent painting effect and the quality of the finished product. Although existing grinding equipment can partially replace manual labor, its functions are limited and it cannot handle multiple processes such as coarse grinding, fine grinding and dust removal, making it difficult to automate the grinding process. Summary of the Invention

[0004] To address the above problems, this application provides a metal door polishing device, characterized in that it includes: a frame; a conveying unit mounted on the frame for conveying a metal door to a polishing station; at least one pair of polishing rollers symmetrically arranged on both sides of the conveying unit; and a clamping drive unit, wherein the polishing rollers are rotatably mounted on the clamping drive unit, the clamping drive unit being mounted on the frame and driving the polishing rollers to move to clamp or release the metal door, the moving direction of the clamping drive unit being perpendicular to the conveying direction of the conveying unit.

[0005] In one embodiment, the metal door is vertically mounted on the conveying unit, and the clamping drive unit drives the grinding roller to move horizontally.

[0006] In one embodiment, the clamping drive unit includes a clamping support frame, a rack, a gear, and a clamping driver. The grinding roller is mounted on the clamping support frame, which is slidably mounted on the frame. The rack is fixedly mounted on the frame. The output end of the clamping driver is connected to the gear, which meshes with the rack to drive the grinding roller to move.

[0007] In one embodiment, a housing cover is provided on the outside of the frame, and the inlet and outlet ends of the housing cover are provided with elastic baffles.

[0008] In one embodiment, the elastic baffle is a soft rubber sheet, and a plurality of the elastic baffles are arranged sequentially from top to bottom and fixedly installed on the chassis cover.

[0009] In one embodiment, a negative pressure dust collection unit is provided inside the casing, and the dust collection port of the negative pressure dust collection unit is located on one side of the grinding roller for collecting dust generated during grinding.

[0010] In one embodiment, a rotary drive unit is provided at the end of the grinding roller. The rotary drive unit includes a rotary driver. A drive wheel is provided at the output end of the rotary driver. A driven wheel is provided on the grinding roller. A transmission belt is provided on the drive wheel and the driven wheel.

[0011] In one embodiment, the surface of the grinding roller is detachably fitted with an abrasive layer, the abrasive layer comprising surface treatment materials with different coefficients of friction.

[0012] In one embodiment, a position sensor is provided inside the frame to detect when the metal door reaches a predetermined position and trigger the clamping drive unit to operate.

[0013] In one embodiment, the device has a modular structure, with multiple grinding devices connected in series through the conveying unit. The grinding rollers of each module are respectively configured with different abrasive layers to perform coarse grinding, fine grinding, or dust removal on the metal door.

[0014] The beneficial effects of this utility model are as follows:

[0015] This application discloses a metal door grinding device, comprising: a frame, a conveying unit, grinding rollers, and a clamping drive unit. By symmetrically distributing the grinding rollers on both sides of the conveying unit, simultaneous grinding of both sides of the metal door is achieved, effectively ensuring balanced force during grinding and avoiding deformation or uneven grinding caused by unilateral force on the metal door, significantly improving grinding accuracy and surface quality consistency. By rotatably mounting the grinding rollers on the clamping drive unit, and allowing the clamping drive unit to move perpendicular to the conveying direction of the conveying unit, the spacing between the grinding rollers can be flexibly adjusted to accommodate metal doors of different widths, greatly enhancing the versatility and applicability of the grinding device and reducing equipment replacement costs. Through the coordinated operation of the conveying unit, clamping drive unit, and grinding rollers, an automated continuous grinding process is formed. The metal door can automatically enter the grinding station, complete grinding, and be output under the conveying unit's transport, without manual intervention, significantly improving production efficiency and reducing manual labor intensity and costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention. Figure 1 ;

[0018] Figure 3 This is a schematic diagram of the internal structure of the present invention. Figure 2 ;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 for Figure 3 Enlarged view at point B in the middle;

[0021] Explanation of symbols in the diagram:

[0022] 1. Rack; 11. Chassis cover; 12. Flexible baffle;

[0023] 2. Transmission unit;

[0024] 3. Grind the rollers;

[0025] 4. Clamping drive unit; 41. Clamping support frame; 42. Rack; 43. Clamping driver;

[0026] 5. Negative pressure dust collection unit;

[0027] 6. Rotary drive; 61. Driving wheel; 62. Driven wheel. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0029] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0030] like Figure 1-3 As shown, a metal door polishing device includes:

[0031] Rack 1;

[0032] Conveying unit 2, which is installed on the frame 1, is used to transport the metal door to the grinding station;

[0033] At least one pair of grinding rollers 3 are symmetrically arranged on both sides of the conveying unit 2;

[0034] The clamping drive unit 4 is rotatably mounted on the grinding roller 3. The clamping drive unit 4 is mounted on the frame 1 and drives the grinding roller 3 to move to clamp or release the metal door. The moving direction of the clamping drive unit 4 is perpendicular to the conveying direction of the conveying unit 2.

[0035] Specifically, the metal door polishing device uses a frame 1 as its basic support structure. A conveying unit 2 is installed on the upper surface of the frame 1, forming a channel for conveying metal doors along a specific direction. At least one pair of polishing rollers 3 are symmetrically arranged on both sides of the conveying unit 2. Each polishing roller 3 is rotatably mounted on a corresponding clamping drive unit 4. In this embodiment, three pairs of polishing rollers 3 are provided. The clamping drive unit 4 is fixedly installed on the frame 1, located on both sides of the conveying unit 2. The clamping drive unit 4 can drive the polishing rollers 3 to move linearly along a path perpendicular to the conveying direction of the conveying unit 2, thereby realizing the clamping and releasing action of the metal door on the conveying unit 2. When the metal door is conveyed to the grinding station by the conveying unit 2, the clamping drive unit 4 drives the grinding rollers 3 on both sides to move towards each other along a direction perpendicular to the conveying direction until they are tightly fitted to the two sides of the metal door. The grinding rollers 3 rotate to grind the surface of the metal door. During the grinding process, the conveying unit 2 continuously conveys the metal door forward, causing relative movement between the grinding rollers 3 and the metal door, thereby achieving continuous grinding of the entire surface of the metal door. In this application, by setting the grinding rollers 3 symmetrically distributed on both sides of the conveying unit 2, the effect of synchronous grinding on both sides of the metal door is achieved, effectively ensuring balanced force during the grinding process and avoiding the problem of deformation or uneven grinding of the metal door due to force on one side, significantly improving the consistency of grinding accuracy and surface quality. By rotatably mounting the grinding rollers 3 on the clamping drive unit 4 and moving the clamping drive unit 4 along a direction perpendicular to the conveying direction of the conveying unit 2, the spacing between the grinding rollers 3 can be flexibly adjusted, thereby adapting to metal doors of different widths and greatly enhancing the versatility and applicability of the grinding device, reducing equipment replacement costs. By setting up the linkage between the conveying unit 2, the clamping drive unit 4, and the grinding roller 3, an automated continuous grinding process is formed. The metal door can automatically enter the grinding station, complete the grinding and output under the conveying unit 2 without manual intervention, which greatly improves production efficiency and reduces the intensity of manual operation and labor costs.

[0036] like Figure 1 , 2 As shown, the metal door is vertically mounted on the conveying unit 2, and the clamping drive unit 4 drives the grinding roller 3 to move in the horizontal direction.

[0037] Specifically, in this embodiment, the conveying unit 2 is a conveying rail, and the metal door is placed vertically on the conveying unit 2. The vertically installed metal door can maximize the use of the three-dimensional space of the equipment and effectively reduce the area occupied by the device. The vertical placement allows the upper and lower surfaces of the metal door to hang naturally, avoiding gravity deformation caused by horizontal placement, ensuring a flat surface during polishing and improving polishing accuracy.

[0038] like Figure 2 , 4 As shown, the clamping drive unit 4 includes a clamping support frame 41, a rack 42, a gear, and a clamping driver 43. The grinding roller 3 is mounted on the clamping support frame 41, and the clamping support frame 41 is slidably mounted on the frame 1. The rack 42 is fixedly mounted on the frame 1. The output end of the clamping driver 43 is connected to the gear, and the gear meshes with the rack 42 to drive the grinding roller 3 to move.

[0039] Specifically, the grinding roller 3 is mounted on a sliding clamping support frame 41, enabling its flexible displacement on the frame 1; the rack 42 fixed to the frame 1 meshes with the gear at the output end of the clamping driver 43, ensuring that the grinding roller 3 moves smoothly and at a uniform speed toward or away from the metal door. At the same time, the rack and gear structure has a self-locking function, which can maintain a stable position after the grinding roller 3 clamps the metal door, preventing displacement deviation caused by vibration during the grinding process. The upper and lower ends of the clamping support frame 41 are respectively provided with rack 42, gear and clamping driver 43 to ensure grinding accuracy.

[0040] like Figure 1 As shown, a housing cover 11 is provided on the outside of the frame 1, and elastic baffles 12 are provided at the feed end and the discharge end of the housing cover 11.

[0041] Specifically, the enclosure 11 can enclose the core components of the grinding device, effectively preventing metal shavings and dust generated during the grinding process from flying everywhere and ensuring the air quality in the workshop; the elastic baffle 12 can form a partial automatic resealing without affecting the normal entry and exit of the metal door, further reducing the spillage of shavings and dust, thus taking into account both protection and practicality.

[0042] like Figure 1 As shown, the elastic baffle 12 is a soft rubber plate, and multiple elastic baffles 12 are arranged sequentially from top to bottom and fixedly installed on the chassis cover 11.

[0043] Specifically, the flexible baffle 12 made of soft rubber sheet is flexible and wear-resistant. It can effectively block metal chips and dust generated during the polishing process, and can also adapt to the entry and exit of metal doors of different thicknesses through its own elastic deformation, avoiding damage to the surface of the metal door due to hard collisions.

[0044] like Figure 2As shown, a negative pressure dust collection unit 5 is provided inside the casing 11. The dust collection port of the negative pressure dust collection unit 5 is located on one side of the grinding roller 3 and is used to collect the dust generated during grinding.

[0045] Specifically, a negative pressure dust collection unit 5 is installed inside the casing 11, which greatly improves the cleaning and environmental protection performance of the grinding device, prevents dust from spreading and accumulating inside the casing 11, reduces the risk of dust spillage, and effectively protects the respiratory health of operators and the cleanliness of the workshop environment.

[0046] like Figure 5 As shown, a rotary drive unit 6 is provided at the end of the grinding roller 3. The rotary drive unit 6 includes a rotary driver. A drive wheel 61 is provided at the output end of the rotary driver. A driven wheel 62 is provided on the grinding roller 3. A transmission belt is provided on the drive wheel 61 and the driven wheel 62.

[0047] Specifically, the rotary drive 61 provides stable power, and through the combination of the drive wheel 61, the driven wheel 62 and the transmission belt, the rotational power is efficiently and smoothly transmitted to the grinding roller 3, driving the grinding roller 3 to rotate.

[0048] like Figure 2 As shown, the surface of the grinding roller 3 is detachably fitted with an abrasive layer, which includes surface treatment materials with different coefficients of friction.

[0049] Specifically, the surface of the grinding roller 3 adopts a removable abrasive layer. The removable installation method allows operators to quickly and easily replace the abrasive layer according to its wear level. Operators can flexibly select the abrasive layer with the corresponding friction coefficient according to the material of the metal door and the surface treatment requirements. The abrasive layer can be sandpaper, cloth or sponge.

[0050] like Figure 2 As shown, the frame 1 is equipped with a position sensor, which is used to detect when the metal door reaches a predetermined position and trigger the clamping drive unit 4 to operate.

[0051] Specifically, the position sensor can monitor the conveying process of the metal door in real time. When the metal door arrives at the predetermined position of the grinding station, the sensor quickly feeds back the signal to the control system, which accurately triggers the action of the clamping drive unit 4 to ensure that the grinding roller 3 clamps and grinds the metal door when it is in the optimal position, avoiding uneven grinding or equipment collision risks caused by position deviation. At the same time, this setting realizes the automated connection of the metal door grinding process, eliminating the need for manual judgment and operation, reducing human error and improving production efficiency.

[0052] like Figure 1 , 2As shown, the device has a modular structure, with multiple grinding devices connected in series via a conveying unit 2. Each module's grinding roller 3 is equipped with a different abrasive layer to perform coarse grinding, fine grinding, or dust removal on the metal door.

[0053] Specifically, through a modular structure, each grinding device can be independently disassembled, installed, and maintained, significantly reducing equipment maintenance difficulty and downtime, facilitating rapid replacement of faulty modules, and ensuring production continuity. Multiple grinding devices are connected in series via conveyor unit 2 to form a streamlined grinding process. Metal doors do not require manual transfer and can be automatically transported between modules, effectively improving grinding efficiency. At the same time, each module's grinding roller 3 is equipped with abrasive layers with different functions, from coarse grinding to remove larger imperfections on the metal door surface, to fine grinding to improve surface smoothness and gloss, and finally to cleaning residual debris with ash-removing material, realizing integrated operation of multiple processes.

[0054] The grinding device described in this application, through its adjustable-pitch dual-roller clamping structure and detachable abrasive layer design, can adapt to plate-shaped workpieces with different materials, thicknesses and surface treatment requirements, including but not limited to grinding, polishing and cleaning operations of metal doors, wood panels, composite panels and other flat profiles, achieving full coverage of surface treatment in multiple scenarios.

[0055] This application discloses a metal door polishing device, comprising: a frame 1, a conveying unit 2, polishing rollers 3, and a clamping drive unit 4. The polishing rollers 3 are rotatably mounted on the clamping drive unit 4, which is mounted on the frame 1 and drives the polishing rollers 3 to move to clamp or release the metal door. The moving direction of the clamping drive unit 4 is perpendicular to the conveying direction of the conveying unit 2. When the metal door is conveyed to the polishing station by the conveying unit 2, the clamping drive unit 4 drives the polishing rollers 3 on both sides to move towards each other along a direction perpendicular to the conveying direction until they are tightly attached to the two side surfaces of the metal door. The polishing rollers 3 rotate to polish the surface of the metal door. During the polishing process, the conveying unit 2 continuously conveys the metal door forward, causing relative movement between the polishing rollers 3 and the metal door, thereby achieving continuous polishing of the entire surface of the metal door. By symmetrically distributing grinding rollers 3 on both sides of the conveying unit 2, simultaneous grinding of both sides of the metal door is achieved, effectively ensuring balanced force during grinding and avoiding deformation or uneven grinding caused by unilateral force on the metal door. This significantly improves the consistency of grinding accuracy and surface quality. By rotatably mounting the grinding rollers 3 on the clamping drive unit 4, and moving the clamping drive unit 4 perpendicular to the conveying direction of the conveying unit 2, the spacing between the grinding rollers 3 can be flexibly adjusted to accommodate metal doors of different widths. This greatly enhances the versatility and applicability of the grinding device and reduces equipment replacement costs. Through the coordinated operation of the conveying unit 2, clamping drive unit 4, and grinding rollers 3, an automated continuous grinding process is formed. The metal door automatically enters the grinding station, completes grinding, and is output under the conveying unit 2, without manual intervention, significantly improving production efficiency and reducing manual labor intensity and costs.

[0056] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0057] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A metal door polishing device, characterized in that, include: Rack (1); A conveying unit (2) is installed on the frame (1) for conveying metal doors to the grinding station; At least one pair of grinding rollers (3) are symmetrically arranged on both sides of the conveying unit (2); The clamping drive unit (4) is rotatably mounted on the grinding roller (3). The clamping drive unit (4) is mounted on the frame (1) and drives the grinding roller (3) to move to clamp or release the metal door. The moving direction of the clamping drive unit (4) is perpendicular to the conveying direction of the conveying unit (2).

2. The metal door polishing device according to claim 1, characterized in that, The metal door is vertically mounted on the conveying unit (2), and the clamping drive unit (4) drives the grinding roller (3) to move in the horizontal direction.

3. The metal door polishing device according to claim 1, characterized in that, The clamping drive unit (4) includes a clamping support frame (41), a rack (42), a gear, and a clamping driver (43). The grinding roller (3) is mounted on the clamping support frame (41), which is slidably mounted on the frame (1). The rack (42) is fixedly mounted on the frame (1). The output end of the clamping driver (43) is connected to the gear, which meshes with the rack (42) to drive the grinding roller (3) to move.

4. The metal door polishing device according to claim 1, characterized in that, The frame (1) is provided with a housing cover (11) on the outside, and the inlet and outlet ends of the housing cover (11) are provided with elastic baffles (12).

5. A metal door polishing device according to claim 4, characterized in that, The elastic baffle (12) is a soft rubber plate, and multiple elastic baffles (12) are arranged from top to bottom and fixedly installed on the chassis cover (11).

6. A metal door polishing device according to claim 4, characterized in that, The chassis cover (11) is equipped with a negative pressure dust collection unit (5), and the dust collection port of the negative pressure dust collection unit (5) is located on one side of the grinding roller (3) for collecting the dust generated during grinding.

7. A metal door polishing device according to claim 1, characterized in that, The grinding roller (3) is provided with a rotary drive unit (6) at its end. The rotary drive unit (6) includes a rotary driver. The output end of the rotary driver is provided with a drive wheel (61). The grinding roller (3) is provided with a driven wheel (62). The drive wheel (61) and the driven wheel (62) are provided with a transmission belt.

8. A metal door polishing device according to claim 1, characterized in that, The surface of the grinding roller (3) is detachably fitted with an abrasive layer, which includes surface treatment materials with different coefficients of friction.

9. A metal door polishing device according to claim 1, characterized in that, A position sensor is installed inside the frame (1) to detect when the metal door reaches a predetermined position and trigger the clamping drive unit (4) to operate.

10. A metal door polishing device according to claim 8, characterized in that, The device has a modular structure, with multiple grinding devices connected in series through the transmission unit (2). The grinding rollers (3) of each module are respectively equipped with different abrasive layers to perform coarse grinding, fine grinding, or dust removal on the metal door.

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