A cutting saw and a noise reduction structure thereof

Abstract

This application discloses a cutting saw and its noise reduction structure, belonging to the technical field of cutting saw parts or accessories. The present application aims to address the problem that existing cutting saws lack integrated sound source insulation structures and rely solely on external sound insulation panels for noise reduction, resulting in limited noise reduction effectiveness. The cutting saw of this application includes a cutting saw body and two cutting saw noise reduction structures. The cutting saw body includes two saw blades. Each cutting saw noise reduction structure is fixed to the lower part of one side of the cutting saw body, and the through groove on each cutting saw noise reduction structure corresponds to and cooperates with the saw blade located on the same side of the cutting saw body. The cutting saw noise reduction structure includes a soundproof cover and two end baffles. The soundproof cover is arranged in an inverted "U" shape. A through groove is machined along the length of the soundproof cover at the closed end to facilitate the passage of the saw blade. The two end baffles are respectively disposed at both ends of the soundproof cover and fixedly connected to the soundproof cover. This application is used as a device for cutting materials such as wood.

Description

Technical Field

[0001] This utility model relates to the technical field of cutting saws and their accessories, specifically to a cutting saw and its noise reduction structure. Background Technology

[0002] Large cutting saws, as core processing equipment in fields such as wood processing, stone cutting, construction, and building materials production, require high-speed rotation of the saw blade during operation to cut materials. This generates high-intensity mechanical and aerodynamic noise, making them typical sources of strong industrial noise. This type of noise not only causes environmental noise pollution in factory areas, affecting surrounding production and living order, but long-term exposure can also damage the hearing health of workers, failing to meet the occupational health and environmental noise reduction requirements of modern industrial production.

[0003] Currently, the industry commonly uses the traditional solution of external independent sound insulation panels for noise control of cutting saws. This involves adding sound insulation panels around the equipment to block noise from spreading into the external space, thus achieving basic sound insulation and noise reduction. However, this external sound insulation method has significant technical and application limitations: First, external sound insulation panels require additional working space, making them difficult to arrange and install properly in situations with limited space, compact work areas, or densely packed production lines, directly resulting in ineffective noise control. Second, external sound insulation panels are passive, remote sound insulation structures that can only block noise that has already radiated outwards, failing to provide targeted protection at the noise source. Third, this solution is cumbersome to install and disassemble, affecting the convenience of daily equipment maintenance, material loading and unloading, and cutting operations, thus lacking practicality.

[0004] From the perspective of noise generation mechanism, the core noise source during table saw operation is the contact cutting area between the saw blade and the processed materials such as wood and stone. The high-speed rotation of the saw blade generates severe friction, impact, and vibration with the material, and the resulting high-frequency mechanical noise is the main component of the equipment noise. Existing patent, publication number CN215149846U, entitled "A Noise Reduction Structure for Table Saws," discloses a noise reduction structure. The core of this structure is a soundproof cover. During operation, the noise reduction function is achieved by adjusting the soundproof cover to lower and fasten it onto the cutting area. However, the existing large table saws generally lack a dedicated noise reduction structure that is integrated with the equipment and can directly cover and isolate the core cutting noise source. This results in the core noise source radiating outwards without obstruction. Even with external soundproof panels, the overall noise reduction effect is still difficult to meet actual production needs.

[0005] Therefore, developing a cutting saw structure that integrates sound insulation and noise reduction to suppress noise diffusion at the source, compensate for the application defects of external sound insulation panels, adapt to the layout requirements of different work sites, and effectively improve the overall noise reduction level of the cutting saw has become a practical problem that cutting equipment urgently needs to solve. Utility Model Content

[0006] This application aims to address the problem that existing cutting saws lack integrated sound source insulation structures and rely solely on external sound insulation panels for noise reduction, resulting in limited noise reduction effects. Therefore, this application provides a cutting saw and its noise reduction structure.

[0007] A noise reduction structure for a cutting saw includes a soundproof cover and two end baffles. The soundproof cover is arranged in an inverted "U" shape. A through groove is machined on the closed end of the soundproof cover along the length of the soundproof cover to facilitate the passage of the saw blade. The two end baffles are respectively arranged at both ends of the soundproof cover and are fixedly connected to the soundproof cover.

[0008] Furthermore, each side section of the soundproof enclosure is machined with two through holes that mate with the moving wheel axle;

[0009] Furthermore, the soundproof enclosure includes an electrostatic powder-coated steel plate, a waterproof shell, and a built-in sound insulation unit. The electrostatic powder-coated steel plate is arranged in an inverted "U" shape. The waterproof shell is placed inside the electrostatic powder-coated steel plate and is fixedly connected to the electrostatic powder-coated steel plate. An inverted "U" shaped cavity is formed between the waterproof shell and the electrostatic powder-coated steel plate. The built-in sound insulation unit is inserted into the inverted "U" shaped cavity and is fixedly connected to the waterproof shell and the electrostatic powder-coated steel plate.

[0010] Furthermore, the built-in sound insulation unit includes sound insulation felt, sound insulation cotton, and water-repellent glass fiber cloth. The sound insulation felt is applied to the inside of the electrostatic powder-coated steel plate, the sound insulation cotton is applied to the inside of the sound insulation felt, and the water-repellent glass fiber cloth is applied to the inside of the sound insulation cotton. The edges of the sound insulation felt, sound insulation cotton, and water-repellent glass fiber cloth are all bonded and fixed to the waterproof shell.

[0011] Furthermore, a drainage gap is provided between the hydrophobic fiberglass cloth and the waterproof shell, and multiple drainage holes are equidistantly processed at the bottom of the waterproof shell and the corresponding location of the drainage gap along the length extension direction of the sound insulation cover.

[0012] Furthermore, each side section of the soundproof enclosure has a rubber foam strip extending along the length of the soundproof enclosure at its bottom;

[0013] Furthermore, a soft silicone strip is provided on the outer side of the rubber foam strip, and the soft silicone strip is fixedly connected to the bottom of the corresponding side upright part in the sound insulation cover, and the soft silicone strip is bonded and fixed to the rubber foam strip;

[0014] Furthermore, a soundproof screen is erected on the outer side of the top of the soundproof enclosure, and the bottom of the soundproof screen is fixedly connected to the top of the soundproof enclosure.

[0015] Furthermore, the top of the sound barrier is provided with a bent portion extending in the direction of the saw blade;

[0016] Furthermore, the angle between the bent portion and the sound barrier is a right angle or an obtuse angle.

[0017] A cutting saw, the cutting saw includes a cutting saw main body and two cutting saw noise reduction structures. The cutting saw main body includes two saw blades, and the two saw blades are respectively located on both sides of the cutting saw main body. Each cutting saw noise reduction structure is fixed to the lower part of one side of the cutting saw main body, and the through groove on each cutting saw noise reduction structure is correspondingly arranged in cooperation with the saw blade on the same side of the cutting saw main body. When the saw blade is working, it will pass through the corresponding cutting saw noise reduction structure and then cut the target.

[0018] Beneficial effects of this application compared with the prior art:

[0019] 1. A cutting saw and its noise reduction structure provided by this application directly integrate the noise reduction structure on the cutting saw main body and make the noise reduction structure become a part of the cutting saw. This noise reduction structure can reduce the diffusion of noise from the source and break through the limitations of the external sound insulation structure. This structure forms a closed sound insulation space through an inverted "U" - shaped sound insulation cover and an end baffle, directly covering the core noise source of the saw blade and material cutting, suppressing the outward radiation of noise from the sound - generating place, and completely solving the disadvantages that the external sound insulation board can only passively isolate sound remotely and cannot treat the sound source. The noise reduction is more targeted and the effect is more prominent.

[0020] 2. A cutting saw and its noise reduction structure provided by this application are integrated with the cutting saw body, without occupying additional working space, and can be normally used under limited working conditions such as dense assembly lines and narrow construction spaces, avoiding the problems of difficult arrangement of external sound insulation boards and inapplicability to compact scenarios, and greatly broadening the scope of application.

[0021] 3. A cutting saw and its noise reduction structure provided by this application can significantly reduce the operating noise of the cutting saw, effectively relieve the noise pollution in the factory area, reduce the hearing damage of operating personnel caused by noise, meet the environmental protection standards and occupational health protection requirements of modern industrial production, and have significant social benefits. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of the cutting saw noise reduction structure described in this application;

[0023] Figure 2 It is a side view schematic diagram of the sound insulation cover in the cutting saw noise reduction structure described in this application;

[0024] Figure 3 For Figure 2 Schematic diagram of the A - A direction in

[0025] Figure 4 For Figure 2 Schematic diagram of the B - B direction in

[0026] Figure 5 It is a schematic structural diagram of the "U" - shaped cavity in the cutting saw noise reduction structure described in this application;

[0027] Figure 6 It is a schematic diagram of the composition of the built-in sound insulation unit in the cutting saw noise reduction structure described in this application;

[0028] Figure 7 It is a schematic diagram of the cooperation between the drain hole and the drain gap in the cutting saw noise reduction structure described in this application;

[0029] Figure 8 It is a schematic diagram of the cooperation between the built-in sound insulation unit and the "U"-shaped cavity in the cutting saw noise reduction structure described in this application;

[0030] Figure 9 It is a schematic diagram of the cooperation between the normal cutting saw noise reduction structure and the cutting saw described in this application;

[0031] Figure 10 It is a schematic diagram of the cooperation between the cutting saw noise reduction structure with a sound insulation screen and the cutting saw described in this application;

[0032] Figure 11 It is a schematic diagram of the cooperation between the cutting saw noise reduction structure with an obtuse angle bending part sound insulation screen and the cutting saw described in this application;

[0033] Figure 12 It is a schematic diagram of the cooperation between the cutting saw noise reduction structure with a right angle bending part sound insulation screen and the cutting saw described in this application;

[0034] Figure 13 It is a schematic diagram of the installation of the cutting saw noise reduction structure and the rail cutting saw described in this application;

[0035] Figure 14 It is a schematic diagram of the installation of the cutting saw noise reduction structure and the positioning cutting saw described in this application.

[0036] In the figure, 1 is the sound insulation cover, 101 is the through groove, 102 is the through hole, 103 is the electrostatic spraying steel plate, 104 is the sound insulation felt, 105 is the sound insulation cotton, 106 is the hydrophobic glass fiber cloth, 107 is the waterproof plate shell, 2 is the end baffle, 3 is the rubber foam strip, 4 is the sound insulation screen, 401 is the bending part, 5 is the guide rail, 6 is the roller, 7 is the cutting saw main body, 8 is the saw blade, 9 is the moving wheel shaft, and 10 is the processing base. Specific embodiments

[0037] Specific embodiment 1: With reference to Figures 1 to 9 Describe this embodiment. In this embodiment, a cutting saw noise reduction structure is provided. The cutting saw noise reduction structure includes a sound insulation cover 1 and two end baffles 2. The sound insulation cover 1 is arranged in an inverted "U" - shaped structure. A through groove 101 for the saw blade 8 to pass through is processed along the length extension direction of the closed end of the sound insulation cover 1. The two end baffles 2 are respectively arranged at both ends of the sound insulation cover 1 and fixedly connected to the sound insulation cover 1;

[0038] The soundproof enclosure 1 includes an electrostatic powder-coated steel plate 103, a waterproof shell 107, and a built-in sound insulation unit. The electrostatic powder-coated steel plate 103 is arranged in an inverted "U" shape. The waterproof shell 107 is disposed inside the electrostatic powder-coated steel plate 103 and is fixedly connected to the electrostatic powder-coated steel plate 103. An inverted "U" shaped cavity is formed between the waterproof shell 107 and the electrostatic powder-coated steel plate 103. The built-in sound insulation unit is inserted into the inverted "U" shaped cavity and is fixedly connected to both the waterproof shell 107 and the electrostatic powder-coated steel plate 103.

[0039] The soundproof enclosure 1 is the core noise reduction and sound insulation structure in this application. Its width is 330mm-350mm, its height is 300-330mm, and its length is greater than the diameter of the saw blade 8. The through-slot 101 machined on its top facilitates the longitudinal movement of the saw blade 8. The width of the through-slot 101 is generally 48mm, which can accommodate most saw blade thicknesses. When the saw blade 8 is thin, the gap between the saw blade 8 and the inner wall of the through-slot 101 is too large. To further ensure the noise reduction effect, adhesive strips can be attached to the inner walls on both sides of the through-slot 101, but the gap between the two adhesive strips must be large enough for the saw blade 8 to pass through. The end baffle 2 is bonded and fixed to the end of the soundproof enclosure 1. The soundproof enclosure 1 is composed of a multi-layer composite structure, in which the electrostatic powder-coated steel plate 103 serves as the protective outer shell of the noise reduction structure to resist external impacts, and its thickness is generally 1.2mm. The electrostatic powder-coated steel plate 103 has an internal sound insulation unit, which includes sound insulation felt 104, sound insulation cotton 105, and water-repellent fiberglass cloth 106. The sound insulation felt 104 is attached to the inner side of the electrostatic powder-coated steel plate 103, the sound insulation cotton 105 is attached to the inner side of the sound insulation felt 104, and the water-repellent fiberglass cloth 106 is attached to the inner side of the sound insulation cotton 105. The edges of the sound insulation felt 104, sound insulation cotton 105, and water-repellent fiberglass cloth 106 are all bonded and fixed to the waterproof shell 107. The thickness of the sound insulation felt 104 is 5mm, the thickness of the sound insulation cotton 105 is 4-6mm, and the thickness of the water-repellent fiberglass cloth 106 is 2mm. The internal sound insulation unit can effectively attenuate high-frequency mechanical noise generated during cutting. Compared with a single-layer sound insulation board, the noise reduction amplitude and noise reduction frequency band are significantly improved. The waterproof shell 107 serves as the internal protective structure of the noise reduction structure. The electrostatic powder-coated steel plate 103 is fixed by bolts or adhesive. Considering that coolant will be sprayed on the processing area to reduce the working temperature of the saw blade 8 during cutting, the coolant is generally a semi-synthetic liquid composed of a small amount of mineral oil, water and surfactant. The waterproof shell 107 and the hydrophobic fiberglass cloth 106 form a double waterproof structure, which can effectively prevent coolant from entering the noise reduction structure and thus affecting the noise reduction effect of the built-in sound insulation unit. The double waterproof structure is designed to take into account the possibility of fragments flying when cutting the workpiece. The flying fragments may cause cracks in the waterproof shell 107, thus affecting the waterproof effect. The coolant seeping into the cracks in the waterproof shell 107 is blocked by the hydrophobic fiberglass cloth 106 to prevent it from directly contacting the sound insulation cotton 105 and the sound insulation felt 104.

[0040] Considering that large cutting saws are generally mobile cutting structures, in order to facilitate the installation of the noise reduction structure, this application utilizes the moving wheel axle 9 of the cutting saw as the main support device. First, the end of the moving wheel axle 9 is extended to leave space for the installation of the noise reduction structure. Through holes 102 that mate with the moving wheel axle 9 are machined on both sides of the noise reduction structure. The noise reduction structure is sleeved on the moving wheel axle 9 through the through holes 102. A bearing is set between the moving wheel axle 9 and the noise reduction structure, and the bearing is used to support the noise reduction structure to avoid the noise reduction structure affecting the rotation of the moving wheel axle 9. In order to further improve the installation reliability, an extension frame can also be set on the side of the cutting saw body 7 for mechanical fixation to the electrostatic powder-coated steel plate 103.

[0041] Specific Implementation Method Two: Combining Figures 1 to 9 This embodiment further defines the hydrophobic glass fiber cloth 106 in Specific Embodiment 1. A drainage gap is provided between the hydrophobic glass fiber cloth 106 and the waterproof shell 107. Multiple drainage holes are equidistantly machined at the bottom of the waterproof shell 107 corresponding to the drainage gap along the length extension direction of the sound insulation cover 1. Other components and connection methods are the same as in Specific Embodiment 1.

[0042] In this embodiment, a drainage gap is provided between the hydrophobic glass fiber cloth 106 and the waterproof shell 107. Combined with the drainage holes evenly arranged at the bottom, the coolant that seeps into the interior of the waterproof shell 107 during the cutting operation can be quickly discharged, preventing water accumulation from corroding the sound insulation material, ensuring the long-term stable operation of the built-in sound insulation unit, and improving the durability of the structure.

[0043] Specific implementation method three: Combining Figures 1 to 9 This embodiment further defines the side sections of Specific Embodiment 1. Each side section of the soundproof enclosure 1 has a rubber foam strip 3 extending along the length of the enclosure 1 at its bottom. A soft silicone strip is provided on the outer side of the rubber foam strip 3. The soft silicone strip is fixedly connected to the bottom of the corresponding side section of the soundproof enclosure 1, and is also bonded to the rubber foam strip 3. Other components and connection methods are the same as in Specific Embodiment 2.

[0044] In this embodiment, a rubber foam strip 3 and a soft silicone strip are provided at the bottom of the soundproof cover 1, which can effectively seal the gaps between the soundproof cover 1 and the materials and the work surface, prevent noise from escaping from the bottom, further improve the overall sound insulation and sealing, and enhance the noise reduction effect. At the same time, there is a small amount of movement gap between the bottom of the rubber foam strip 3 and the bottom of the soft silicone strip and the work surface, so as to avoid the rubber foam strip 3 getting stuck between the rubber foam strip 3 and the work surface and affecting the normal movement of the equipment.

[0045] Specific implementation method four: Combination Figures 1 to 12This embodiment further defines the soundproof enclosure 1 of Specific Embodiment 1. A soundproof screen 4 is erected on the outer side of the top of the soundproof enclosure 1. The bottom of the soundproof screen 4 is fixedly connected to the top of the soundproof enclosure 1. The top of the soundproof screen 4 has a bent portion 401 extending in the direction of the saw blade 8. The angle between the bent portion 401 and the soundproof screen 4 is a right angle or an obtuse angle. Other components and connection methods are the same as in Specific Embodiment 2.

[0046] In this embodiment, a soundproof screen 4 with a bend 401 is added to the top of the soundproof cover 1. The bend 401 extends toward the saw blade sound source side to form a directional sound barrier, which can block the upward and lateral spread of noise. Together with the main soundproof cover, it forms a double soundproof protection, and the overall noise reduction effect is further optimized.

[0047] Specific Implementation Method Five: Combining Figures 13 to 14 This embodiment describes a cutting saw, which includes a cutting saw body 7 and two cutting saw noise reduction structures. The cutting saw body 7 includes two saw blades 8, which are located on both sides of the cutting saw body 7. Each cutting saw noise reduction structure is fixed to the lower part of one side of the cutting saw body 7, and the through groove 101 on each cutting saw noise reduction structure is correspondingly matched with the saw blade 8 located on the same side of the cutting saw body 7. When working, the saw blade 8 passes through the corresponding cutting saw noise reduction structure and cuts the target.

[0048] This embodiment provides a cutting saw integrating a noise reduction structure. The noise reduction structure is installed at the lower part of the cutting saw body 7 and works in conjunction with a rotatable saw blade 8 on the cutting saw body 7 that has a lifting structure. The cutting saw body 7 can be set to two working modes according to working conditions: a mobile mode and a fixed mode. Figure 13 The structure shown is a schematic diagram of the noise reduction structure described in this application combined with the mobile cutting saw body 7. This type of cutting saw body 7 has a movable axle 9, on which a roller 6 is mounted, cooperating with a guide rail 5. The cutting saw body 7 has a built-in drive structure for the movable axle 9 to drive it in forward and reverse rotation, thereby realizing the forward and backward movement of the cutting saw body 7 along the guide rail 5. The cutting saw body 7 adopts a dual-blade design, allowing it to cut two materials simultaneously. When wood or other materials are long, heavy, or difficult to move, this type of mobile cutting saw can be used to complete the cutting work. Figure 14The structure shown is a schematic diagram of the noise reduction structure described in this application combined with the fixed cutting saw body 7. The cutting saw body 7 is supported by the noise reduction structure and is supported on the processing base 10. The processing base 10 is a support platform, and two processing grooves for arranging materials are machined parallel to each other on the bottom of the processing base 10. Each processing groove has a saw blade passage groove that cooperates with the saw blade 8 on its top. The passage groove 101 and the saw blade passage groove are arranged vertically and vertically. When cutting, the cutting saw body 7 is fixed to the processing base 10. The material to be cut enters from one end of the processing groove and exits from the other end. The cutting work is completed during the movement of the material. When the wood or material is short in length, light in weight, and easy to move, this type of fixed cutting saw can be used to complete the cutting work.

[0049] The working principle of this application will be explained in conjunction with specific embodiments one through five:

[0050] This noise reduction structure for the cutting saw connects to the moving wheel axle 9 via the through hole 102 on the side of the soundproof cover. Employing a bearing support design, it does not affect the rotation of the moving wheel axle, the movement of the cutting saw, or the lifting and lowering of the saw blade. As an integrated component of the equipment, it operates synchronously with the saw blade, continuously enveloping the core noise source throughout the entire process. It is suitable for various constrained working conditions such as confined spaces and dense assembly lines, stably performing its noise reduction function throughout the entire process. The noise reduction structure's core logic revolves around source-level sound insulation, multi-layer composite sound absorption, all-dimensional sealing and sound blocking, and waterproof and drainage protective materials. Through its integrated structural design with the cutting saw body, it directly acts on the core noise source of the saw blade cutting, blocking and attenuating noise at all stages from generation, propagation, and dissipation. This completely replaces the traditional remote passive noise reduction mode of external soundproof panels, achieving a highly efficient, stable, and adaptable industrial noise reduction effect. The specific working principle is as follows:

[0051] The soundproof enclosure 1 adopts an inverted "U"-shaped main structure, combined with end baffles 2 fixed at both ends, to form a fully enclosed soundproof cavity. This precisely covers the core noise area of ​​the cutting saw blade 8 and material cutting. A through slot 101 is opened at the closed end of the soundproof enclosure 1 to provide a channel for the longitudinal lifting and lowering of the saw blade 8. This does not interfere with the normal operation of the cutting saw, while completely confining the high-frequency mechanical noise generated by the high-speed rotation of the saw blade 8 and the friction and impact with the material within the soundproof cavity. This cuts off the path of noise radiation outward from the noise's origin, solving the fundamental deficiency of traditional external soundproof panels that cannot address the noise source. The soundproof enclosure 1 uses a four-layer composite structure, where the acoustic properties of different materials work synergistically to reduce noise within the cavity. The sound is blocked, attenuated, and absorbed in layers. The rigid sound insulation performance of the electrostatic spray-coated steel plate 103 blocks the transmission of mid-to-high frequency noise and resists external mechanical impact, protecting the internal sound insulation material. The sound insulation felt 104 is a high-density flexible material that is closely attached to the inner side of the electrostatic spray-coated steel plate 103, effectively blocking the air conduction of noise and significantly attenuating the core high-frequency mechanical noise generated by saw blade cutting. The sound insulation cotton 105 is a porous sound-absorbing material that dissipates the sound wave energy of noise through its internal pores, absorbs mid-to-high frequency noise, and reduces noise transmission rate. The hydrophobic glass fiber cloth 106 also has an auxiliary sound absorption function, preventing coolant and dust from entering the sound insulation cotton, while absorbing the remaining high-frequency noise and ensuring the stable performance of the sound insulation unit.

[0052] Considering that the coolant sprayed during the cutting operation can easily cause the sound insulation material to fail and affect the noise reduction effect of the noise reduction structure, a waterproof shell 107 is added to the inside of the soundproof cover 1. The waterproof shell 107 and the electrostatic powder-coated steel plate 103 form an inverted "U" shaped sealed cavity, which completely wraps the built-in sound insulation unit and prevents the coolant from directly contacting the sound insulation felt and sound insulation cotton. A drainage gap is reserved between the water-repellent glass fiber cloth 106 and the waterproof shell 107. A small amount of coolant that seeps in flows along the gap to the bottom of the soundproof cover 1 and is discharged through the drainage hole.

[0053] The bottom of the two sides of the soundproof cover 1 is equipped with a double-layer flexible sealing structure consisting of rubber foam strips 3 and soft silicone strips. The high elasticity of the rubber foam strips 3 can flexibly adapt to the irregular surfaces of the table and materials, and seal the main gap between the bottom of the soundproof cover and the table. The outer soft silicone strips further fill the tiny gaps, completely blocking noise from escaping from the bottom gaps, improving the airtightness of the soundproof cavity, and enhancing the overall noise reduction effect.

[0054] Finally, a soundproof screen 4 with a bend 401 is installed on the outer side of the top of the soundproof enclosure 1 to form a double soundproof protection. The soundproof screen 4 stands upright to form a vertical barrier to block the upward radiation and diffusion of noise. The top bend 401 extends towards the direction of the saw blade sound source and is designed at a right angle or obtuse angle with the soundproof screen 4 to reflect the residual upward and lateral noise back into the soundproof cavity, where it is absorbed and attenuated again by the internal sound insulation unit, further improving the noise reduction effect.

[0055] The noise reduction structure provided in this application is based on multi-layer sound absorption, ensures sealing and waterproofing, and enhances directional sound insulation. It blocks, absorbs, and attenuates the noise from the cutting saw operation throughout the entire process, achieving noise reduction from the sound source to the propagation path in all dimensions, and meeting the requirements of modern industrial environmental protection and occupational health protection.

[0056] This application has disclosed the preferred embodiments above, but it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed structure and technical content to create equivalent embodiments without departing from the scope of the present utility model. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A noise reduction structure for a cutting saw, characterized in that: The noise reduction structure of the cutting saw includes a soundproof cover (1) and two end baffles (2). The soundproof cover (1) is arranged in an inverted "U" shape. A through groove (101) is machined on the closed end of the soundproof cover (1) along the length extension direction of the soundproof cover (1) to facilitate the passage of the saw blade (8). The two end baffles (2) are respectively arranged at both ends of the soundproof cover (1) and are fixedly connected to the soundproof cover (1). The soundproof enclosure (1) includes an electrostatic powder-coated steel plate (103), a waterproof shell (107), and a built-in soundproof unit; The built-in sound insulation unit includes sound insulation felt (104), sound insulation cotton (105) and water-repellent glass fiber cloth (106). The sound insulation felt (104) is attached to the inside of the electrostatic spray-coated steel plate (103), the sound insulation cotton (105) is attached to the inside of the sound insulation felt (104), and the water-repellent glass fiber cloth (106) is attached to the inside of the sound insulation cotton (105). The edges of the sound insulation felt (104), the sound insulation cotton (105) and the water-repellent glass fiber cloth (106) are all bonded and fixed to the waterproof shell (107).

2. The noise reduction structure for a cutting saw according to claim 1, characterized in that: Two through holes (102) are machined on each side of the soundproof enclosure (1) to mate with the moving wheel axle (9).

3. A noise reduction structure for a cutting saw according to claim 1 or 2, characterized in that: The electrostatic powder-coated steel plate (103) is arranged in an inverted "U" shape. The waterproof shell (107) is set inside the electrostatic powder-coated steel plate (103) and is fixedly connected to the electrostatic powder-coated steel plate (103). An inverted "U" shaped cavity is formed between the waterproof shell (107) and the electrostatic powder-coated steel plate (103). The built-in sound insulation unit is inserted into the inverted "U" shaped cavity and is fixedly connected to both the waterproof shell (107) and the electrostatic powder-coated steel plate (103).

4. The noise reduction structure for a cutting saw according to claim 3, characterized in that: A drainage gap is provided between the hydrophobic glass fiber cloth (106) and the waterproof shell (107). Multiple drainage holes are equidistantly processed at the bottom of the waterproof shell (107) and the corresponding location of the drainage gap along the length extension direction of the soundproof cover (1).

5. The noise reduction structure for a cutting saw according to claim 1, characterized in that: Each side section of the soundproof enclosure (1) has a rubber foam strip (3) extending along the length of the soundproof enclosure (1) at its bottom.

6. The noise reduction structure for a cutting saw according to claim 5, characterized in that: A soft silicone strip is provided on the outside of the rubber foam strip (3). The soft silicone strip is fixedly connected to the bottom of the corresponding side of the soundproof cover (1), and the soft silicone strip is bonded and fixed to the rubber foam strip (3).

7. The noise reduction structure for a cutting saw according to claim 6, characterized in that: A soundproof screen (4) is erected on the outer side of the top of the soundproof cover (1), and the bottom of the soundproof screen (4) is fixedly connected to the top of the soundproof cover (1).

8. The noise reduction structure for a cutting saw according to claim 7, characterized in that: The top of the sound barrier (4) is provided with a bent part (401) extending in the direction of the saw blade (8), and the angle between the bent part (401) and the sound barrier (4) is a right angle or an obtuse angle.

9. A cutting saw, characterized in that: The cutting saw includes a cutting saw body (7) and two cutting saw noise reduction structures as described in any one of claims 1 to 8. The cutting saw body (7) includes two saw blades (8), and the two saw blades (8) are located on both sides of the cutting saw body (7). Each cutting saw noise reduction structure is fixed to the lower part of one side of the cutting saw body (7), and the through groove (101) on each cutting saw noise reduction structure is correspondingly matched with the saw blade (8) located on the same side of the cutting saw body (7). When the saw blade (8) is working, the saw blade (8) will pass through the corresponding cutting saw noise reduction structure and cut the target.

Images