A honeycomb aluminum plate type protective cover of a cutting machine

Abstract

The utility model provides a kind of honeycomb aluminium plate formula protective cover of cutting machine, belong to protective cover technical field.The utility model includes rack and the protective cover assembly being arranged on rack, the protective cover assembly includes three-stage protective cover, secondary protective cover and primary protective cover;Protective cover assembly is composed of fixed primary protective cover, slidable secondary protective cover and three-stage protective cover, nesting telescoping is realized by the cooperation of sliding block and slide rail, the dynamic protection of unfolding on demand is realized, it is convenient for later maintenance;The elastic diaphragm of sandglass-shaped section can be through deformation absorption low-frequency vibration generated by cutting, connect with the connection of diaphragm edge and air bag inner wall, vibration energy is converted into heat energy consumption, further attenuate structure sound transmission, protective cover main part adopts honeycomb aluminium plate, its structure itself has good sound insulation performance, by internal sound-absorbing material, with the sound-absorbing function of air bag cooperation, absorb the reverberation noise inside protective cover, overall noise drops significantly.

Description

Technical Field

[0001] This utility model relates to the field of protective covers, and more specifically, to a honeycomb aluminum plate protective cover for a cutting machine. Background Technology

[0002] In industrial production, cutting machines, as important processing equipment, are widely used in many industries such as metal processing, construction, and wood processing. With the rapid development of modern manufacturing, the requirements for the performance, efficiency, and safety of cutting machines are increasing. In traditional cutting machine usage scenarios, safety protection has always been a critical issue that urgently needs to be addressed. Early, simple protective measures, such as simply installing a basic baffle above the cutting area, are simply insufficient to comprehensively and effectively prevent the generation and spread of these hazards.

[0003] Existing protective covers are mostly one-piece molded covers with fixed dimensions and large footprint. Due to their strong overall structure, they are inconvenient to repair when the cutting machine malfunctions, increasing the time cost and labor intensity of operation and maintenance. In addition, mechanical friction, impact between the cutting tool and the workpiece, and operation of the power system during the cutting process all generate high-intensity noise. Traditional cutting machine protective covers have very limited ability to block and absorb noise, making it difficult to meet the current strict requirements for noise control in the working environment.

[0004] How to invent a honeycomb aluminum plate protective cover for a cutting machine to solve these problems has become an urgent issue for those skilled in the art. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a honeycomb aluminum plate protective cover for a cutting machine, aiming to solve the problems mentioned in the background.

[0006] This utility model is implemented as follows:

[0007] This utility model provides a honeycomb aluminum plate protective cover for a cutting machine, including a frame and a protective cover assembly mounted on the frame. Slide rails are installed on both sides of the frame. The protective cover assembly includes a third-level protective cover, a second-level protective cover, and a first-level protective cover. A protective door is provided at the front end of the third-level protective cover. The first-level protective cover is fixed to the frame. Slider blocks that cooperate with corresponding slide rails are installed on the inner sides of both the third-level and second-level protective covers. The second-level protective cover is slidably fitted onto the outside of the first-level protective cover via the sliders, and the third-level protective cover is fitted onto the outside of the second-level protective cover via the sliders. A positioning plate is fixedly installed on the slide rails. A second stop is installed on the second-level protective cover, and a first stop is installed on the third-level protective cover. A driving mechanism for driving the third-level protective cover to slide along the slide rails is provided on the frame. Noise reduction components are installed at the front ends of both the second-level and first-level protective covers.

[0008] Preferably, the three-level protective cover is rotatably connected to the protective door, and the protective door is provided with an observation window.

[0009] Preferably, the noise reduction component includes a metal pressure strip and an airbag structure. The metal pressure strip is fixed to the secondary protective cover and the primary protective cover by screws. An airbag structure is fixedly connected to the outer side of the metal pressure strip, and a sound-absorbing structure is provided on the inner side of the secondary protective cover.

[0010] Preferably, the shape of the metal pressure strip and the airbag structure matches the inner cavity of the corresponding protective cover, and the outer wall of the airbag structure abuts against the inner wall of the corresponding protective cover.

[0011] Preferably, the sound-absorbing structure includes multiple sets of annular elastic diaphragms disposed within the airbag structure. The edges of the annular elastic diaphragms are connected to the inner wall of the airbag structure. An air source interface is installed on the side wall of the airbag structure. The end of the air source interface is connected to an external air supply pump through a pipeline. The cross-section of the annular elastic diaphragm is hourglass-shaped. A channel is opened through the middle of the annular elastic diaphragm. The annular elastic diaphragm is made of the same material as the airbag structure.

[0012] Preferably, the positions of the first stop block and the second stop block correspond, and the position of the second stop block corresponds to that of the positioning plate.

[0013] The beneficial effects of this utility model are:

[0014] The protective cover assembly consists of a fixed primary protective cover, a sliding secondary protective cover, and a tertiary protective cover. Nesting and extension are achieved through the cooperation of sliders and rails. When not in operation, the tertiary protective cover is completely nested within the secondary protective cover, and the secondary protective cover is nested within the primary protective cover. The overall volume is only one-third of its unfolded state, significantly reducing the floor space occupied when idle. During operation, a drive mechanism extends the tertiary protective cover along the rails. When the first stop of the tertiary protective cover touches the second stop of the secondary protective cover, the secondary protective cover extends simultaneously until it covers the entire cutting area, achieving dynamic protection that unfolds as needed and facilitating later maintenance.

[0015] Both the secondary and primary protective covers are equipped with airbag structures at their front ends. These airbags are inflated via an external air pump through an air source interface, ensuring that the outer wall of the airbag fits tightly against the inner wall of the corresponding protective cover, eliminating noise leakage channels caused by expansion gaps. Multiple sets of hourglass-shaped annular elastic diaphragms are installed inside the airbag structure. When airflow passes through the channel in the middle of the diaphragm, it is forcibly dispersed into multiple low-speed airflows, preventing high-speed airflow from impacting the inner wall of the airbag and generating turbulent noise. The elastic structure of the hourglass cross-section can absorb the low-frequency vibrations generated by deformation and cutting. Combined with the connection between the edge of the diaphragm and the inner wall of the airbag, the vibration energy is converted into heat energy and consumed, further attenuating the structure's sound transmission.

[0016] The main body of the protective cover is made of honeycomb aluminum panels, which have good sound insulation performance. Through the internal sound-absorbing materials, it works in conjunction with the sound-absorbing function of the airbag to absorb the reverberation noise inside the protective cover, resulting in a significant reduction in overall noise. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a front view structural diagram of the present invention;

[0020] Figure 3 This is a top view of the structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the frame structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the protective cover assembly structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the metal pressure strip structure of this utility model;

[0024] Figure 7 This is the utility model Figure 6 Enlarged structural diagram at point A in the middle;

[0025] Figure 8 This is a schematic cross-sectional view of the airbag structure of this utility model.

[0026] In the diagram: 1. Frame; 2. Three-level protective cover; 3. Two-level protective cover; 4. One-level protective cover; 5. Protective door; 6. Sliding block; 7. Metal pressure strip; 8. Airbag structure; 9. Annular elastic diaphragm; 11. Slide rail; 21. Stop 1; 31. Stop 2; 41. Positioning plate; 51. Observation window; 81. Air source interface; 91. Channel. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Example, refer to Figures 1-6 A honeycomb aluminum panel protective cover for a cutting machine includes a frame 1 and a protective cover assembly mounted on the frame 1. The protective cover assembly uses a honeycomb aluminum panel as its main structure. Centrifugal glass wool or open-cell polyurethane foam can be filled inside the honeycomb core cavity of the aluminum panel to absorb mid-to-high frequency noise passing through the panel using the porous structure. Slide rails 11 are installed on both sides of the frame 1. The protective cover assembly includes a three-level protective cover 2, a two-level protective cover 3, and a first-level protective cover 4. Through a nested sliding structure, the protective coverage area can be flexibly adjusted according to the cutting range. A protective door 5 is provided at the front end of the three-level protective cover 2. The first-level protective cover 4 is fixed on the frame 1. Slider blocks 6 that cooperate with the corresponding slide rails 11 are installed on the inner sides of the three-level protective cover 2 and the two-level protective cover 3. The protective cover 3 is slidably fitted onto the outside of the first-level protective cover 4 via the slider 6. The third-level protective cover 2 is fitted onto the outside of the second-level protective cover 3 via the slider 6. A positioning plate 41 is fixedly installed on the slide rail 11. A second stop 31 is installed on the second-level protective cover 3, and a first stop 21 is installed on the third-level protective cover 2. A drive mechanism is provided on the frame 1 to drive the third-level protective cover 2 to slide along the slide rail 11. The third-level protective cover 2 is driven only by the drive mechanism (not shown in the figure), and the second-level protective cover 3 is driven by the mechanical linkage of the first stop 21 and the second stop 31. There is no need to design a separate drive for each level of protective cover, which reduces costs and reduces the risk of jamming caused by synchronization errors of multiple power sources. Noise reduction components are installed at the front ends of both the second-level protective cover 3 and the first-level protective cover 4.

[0029] Furthermore, the three-level protective cover 2 and the protective door 5 are rotatably connected, allowing operators to quickly open and close the protective door 5 when picking up or placing workpieces or handling emergencies. The protective door 5 is equipped with an observation window 51 made of tempered glass (meeting impact resistance standards), allowing monitoring of the cutting process without opening the protective door 5, avoiding debris leakage and safety hazards caused by frequent door opening. The positions of the first stop 21 and the second stop 31 correspond to ensure that when the three-level protective cover 2 extends to its limit position, it can accurately drive the second-level protective cover 3 to move synchronously, avoiding a gap between the two levels. The position of the second stop 31 corresponds to the positioning plate 41, limiting the maximum extension distance of the second-level protective cover 3, preventing it from leaving the slide rail 11 range of the first-level protective cover 4, and avoiding structural damage (such as the slider 6 falling off).

[0030] Reference Figures 6-8 The noise reduction component includes a metal pressure strip 7 and an airbag structure 8. The metal pressure strip 7 is fixed to the secondary protective cover 3 and the primary protective cover 4 by screws to prevent the airbag from falling off due to friction or vibration when the protective cover extends and retracts. The airbag structure 8 is fixedly connected to the outer side of the metal pressure strip 7, and a sound-absorbing structure is provided on the inner side of the secondary protective cover 3.

[0031] Furthermore, the shapes of the metal pressure strip 7 and the airbag structure 8 match the inner cavity of the corresponding protective cover, and the outer wall of the airbag structure 8 abuts against the inner wall of the corresponding protective cover, filling the gap generated by the expansion and contraction of the protective cover, solving the problem that static sealing cannot adapt to dynamic gaps, and blocking the path of debris splashing.

[0032] It should be noted that the sound-absorbing structure includes multiple sets of annular elastic diaphragms 9 set inside the airbag structure 8. The edges of the annular elastic diaphragms 9 are connected to the inner wall of the airbag structure 8. An air source interface 81 is installed on the side wall of the airbag structure 8. The end of the air source interface 81 is connected to an external air supply pump through a pipeline. The pressure sensor adjusts the air pressure in real time to ensure that the airbag always maintains the sealing pressure (avoiding excessive pressure leading to increased movement resistance, or excessive pressure leading to sealing failure). The cross-section of the annular elastic diaphragm 9 is set in the shape of an hourglass. A channel 91 is opened through the middle of the annular elastic diaphragm 9. The annular elastic diaphragm 9 is equivalent to forming multiple horizontally separated but connected chambers inside the airbag. After the airflow passes through the channel 91 of the first diaphragm, it will diffuse in the chamber and then enter the next chamber through the channel 91 of the next diaphragm, gradually transmitting the air pressure to the entire airbag. This step-by-step diffusion method can avoid the air pressure from concentrating near the air inlet, ensuring that the sealing force of the airbag is uniform and that gaps will not appear due to insufficient local pressure.

[0033] During the cutting process, the protective cover will generate low-frequency vibrations (200-800Hz) due to the operation of the equipment. The edge of the annular elastic diaphragm 9 is connected to the inner wall of the airbag and can absorb vibration energy through its own elastic deformation, similar to spring shock absorption. Its hourglass-shaped cross-section elastic structure (easily deformed at the narrow opening) can further buffer the vibration and prevent the vibration from radiating into noise through the airbag wall. The annular elastic diaphragm 9 and the airbag structure 8 are made of the same material, using oil-resistant silicone (the cutting environment may come into contact with cooling oil and cutting fluid), which avoids cracking due to the difference in thermal expansion coefficients of different materials during alternating hot and cold periods. It is also easier to integrally mold through the vulcanization process to avoid air leakage at the interface.

[0034] The working principle of the honeycomb aluminum plate protective cover of the cutting machine is as follows: When the cutting machine starts operation, the drive mechanism (such as an electric push rod or chain drive assembly) receives the control signal and drives the third-level protective cover 2 to extend forward along the slide rails 11 on both sides of the frame 1. At this time, the slider 6 on the inner side of the third-level protective cover 2 slides along the slide rail 11, and the protective door 5 at its front end moves synchronously with the protective cover until it covers the front opening of the cutting area. As the third-level protective cover 2 extends, when the stop block 21 at its rear end touches the stop block 31 of the second-level protective cover 3, the third-level protective cover 2 will drive the second-level protective cover 3 to extend synchronously along the slide rail 11 (the slider 6 of the second-level protective cover 3 slides along the outside of the first-level protective cover 4), finally forming a three-level superimposed protective structure of the first-level protective cover 4 fixed + the second-level protective cover 3 extended + the third-level protective cover 2 extended, which completely seals the cutting area.

[0035] During the protection process, an external air pump inflates the airbag structure 8 through the air source interface 81. Due to the pressure, the outer wall of the airbag structure 8 tightly adheres to the inner wall of the corresponding protective cover (e.g., the airbag of the secondary protective cover 3 adheres to the inner wall of the tertiary protective cover 2, and the airbag of the primary protective cover 4 adheres to the inner wall of the secondary protective cover 3). Through elastic deformation, it compensates for the expansion and contraction gaps, preventing the leakage of cutting debris and noise. At the same time, the annular elastic diaphragm 9 inside the airbag structure 8 plays multiple roles. The hourglass-shaped diaphragm structure can disperse the turbulent energy during air replenishment when the airflow passes through the central channel 91, reducing airflow noise. The connection between the edge of the diaphragm and the inner wall of the airbag can absorb the vibration energy during the expansion and contraction of the protective cover. Through elastic deformation, it attenuates low-frequency vibration noise. Combined with the sound-absorbing materials inside the protective cover (such as centrifugal glass wool or open-cell polyurethane foam, existing technology, which will not be described in detail), the cutting noise is further reduced to below 85 decibels.

[0036] During operation, the operator can monitor the cutting status in real time through the observation window 51 on the protective door 5. If it is necessary to pick up or put down the workpiece or stop the machine in an emergency, the protective door 5 can be rotated open around the connection point. At this time, the linked safety switch triggers the power off of the equipment. When the protective cover retracts and resets, the third-level protective cover 2 first retracts along the slide rail 11, driving the second-level protective cover 3 to reset synchronously until the stop block 31 contacts the positioning plate 41 and limits it. Finally, the third-level protective cover 2 is completely nested in the second-level protective cover 3, and the second-level protective cover 3 is nested in the first-level protective cover 4, reducing the space occupation in the non-operation state, which is especially suitable for scenarios with limited workshop space.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A honeycomb aluminum plate protective cover for a cutting machine, comprising a frame (1) and a protective cover assembly disposed on the frame (1), characterized in that, The frame (1) is equipped with slide rails (11) on both sides. The protective cover assembly includes a third-level protective cover (2), a second-level protective cover (3), and a first-level protective cover (4). The front end of the third-level protective cover (2) is provided with a protective door (5). The first-level protective cover (4) is fixed on the frame (1). The inner sides of the third-level protective cover (2) and the second-level protective cover (3) are equipped with sliders (6) that cooperate with the corresponding slide rails (11). The second-level protective cover (3) is slidably fitted onto the first-level protective cover by the sliders (6). Outside the cover (4), the third-level protective cover (2) is sleeved on the outside of the second-level protective cover (3) by a slider (6). A positioning plate (41) is fixedly installed on the slide rail (11). A second stop (31) is installed on the second-level protective cover (3). A first stop (21) is installed on the third-level protective cover (2). A driving mechanism for driving the third-level protective cover (2) to slide along the slide rail (11) is provided on the frame (1). Noise reduction components are installed at the front ends of both the second-level protective cover (3) and the first-level protective cover (4).

2. The honeycomb aluminum plate protective cover for a cutting machine according to claim 1, characterized in that, The three-level protective cover (2) is rotatably connected to the protective door (5), and the protective door (5) is provided with an observation window (51).

3. The honeycomb aluminum plate protective cover for a cutting machine according to claim 1, characterized in that, The noise reduction component includes a metal pressure strip (7) and an airbag structure (8). The metal pressure strip (7) is fixed to the secondary protective cover (3) and the primary protective cover (4) by screws. The airbag structure (8) is fixedly connected to the outer side of the metal pressure strip (7). The inner side of the secondary protective cover (3) is provided with a sound-absorbing structure.

4. A honeycomb aluminum plate protective cover for a cutting machine according to claim 3, characterized in that, The shape of the metal pressure strip (7) and the airbag structure (8) matches the inner cavity of the corresponding protective cover, and the outer wall of the airbag structure (8) abuts against the inner cavity side wall of the corresponding protective cover.

5. A honeycomb aluminum plate protective cover for a cutting machine according to claim 3, characterized in that, The sound-absorbing structure includes multiple sets of annular elastic diaphragms (9) arranged inside the airbag structure (8). The edge of the annular elastic diaphragm (9) is connected to the inner wall of the airbag structure (8). An air source interface (81) is installed on the side wall of the airbag structure (8). The end of the air source interface (81) is connected to an external air supply pump through a pipeline. The cross-section of the annular elastic diaphragm (9) is set in an hourglass shape. A channel (91) is opened through the middle of the annular elastic diaphragm (9). The annular elastic diaphragm (9) and the airbag structure (8) are made of the same material.

6. A honeycomb aluminum plate protective cover for a cutting machine according to claim 1, characterized in that, The positions of the first stop (21) and the second stop (31) correspond to each other, and the positions of the second stop (31) and the positioning plate (41) correspond to each other.

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