Dust falling device for cutting rock wool composite board

Abstract

The utility model relates to a rock wool composite board cutting dust falling device belongs to building material processing equipment technical field. Mainly include support frame, cutting mechanism, isolation subassembly, dust extraction mechanism and adjusting assembly, the rectangular bellows cooperation bottom edge sealing strip of isolation subassembly, can form a dynamic airtight space around the blade in the cutting moment, effectively restrain rock wool dust generated in the inside from the source, effectively prevent dust from escaping outward, the spring and guide rod structure in adjusting assembly, have ensured that sealing strip can self -adaptedly close different flatness board face, have maintained the reliability of sealing, and through the negative pressure of dust extraction mechanism, dust in the airtight space is sucked to the dust collecting box through the pipeline, and is purified through multilayer filter screen, not only eliminates the health risk that dust is inhaled by operating personnel, effectively prevents pneumoconiosis and other occupational diseases, but also reduces dust explosion hidden danger, guarantees the health and production safety of operating personnel.

Description

Technical Field

[0001] This utility model belongs to the technical field of building material processing equipment, specifically relating to a dust suppression device for cutting rock wool composite panels. Background Technology

[0002] In the practical application of rock wool composite panels, they need to be cut and processed according to specific construction dimensions. However, the main components of rock wool composite panels include mineral fibers such as basalt and dolomite, which easily generate a large amount of fine dust during cutting. Long-term inhalation of rock wool dust by operators can cause serious harm to the human respiratory system, potentially leading to occupational diseases such as pneumoconiosis and bronchitis. Dust adhering to the skin and eyes can also cause irritation and damage. Furthermore, when dust reaches a certain concentration in the air, it poses a safety hazard of dust explosion, threatening workshop production safety. Therefore, a dust suppression device that can effectively isolate and collect cutting dust is needed to meet the stringent requirements for human health and safe production during the processing of rock wool composite panels. Utility Model Content

[0003] To overcome the problem of generating a large amount of dust during the cutting of rock wool composite panels in the prior art, this utility model provides a dust suppression device for cutting rock wool composite panels. By setting an isolation component on the outside of the cutting tool and using it in conjunction with an adjustment component, a closed space is formed to isolate the dust. At the same time, it is used in conjunction with a dust collection mechanism to improve dust collection efficiency, reduce the risk of operators inhaling dust and reduce dust pollution to the environment.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: A dust suppression device for cutting rock wool composite panels mainly includes a support frame, a cutting mechanism, an isolation component, a dust collection mechanism, and an adjustment component. The support frame is welded from rectangular metal profiles, with a conveying mechanism installed at its bottom. The rock wool composite panel to be cut is fixed on the conveying mechanism. The cutting mechanism includes a drive motor, a transmission shaft, and a cutting blade. The drive motor is bolted to the top beam of the support frame. One end of the transmission shaft is connected to the output end of the drive motor, and the other end passes through the beam and extends to the cutting area above the conveying mechanism. The cutting blade is fixed to the end of the transmission shaft with a locking nut. The isolation component includes a rectangular corrugated pipe, a bottom sealing strip, and a top fixing cover. The rectangular corrugated pipe is fitted over the cutting blade, with its bottom end tightly fitted to the surface of the rock wool composite panel through the bottom sealing strip, and its top end connected to the support frame through the top fixing cover. The transparent observation window on the frame is sealed to form a completely enclosed space. The dust collection mechanism includes a dust collection pipe, a dust collection fan, and a dust collection box. One end of the dust collection pipe is connected to the side wall of the rectangular corrugated pipe, and the other end is connected to the air inlet of the dust collection fan. The air outlet of the dust collection fan is connected to the dust collection box, which is equipped with multiple layers of filters to separate dust particles. The adjustment component includes a guide rod, a spring, and a limiting sleeve. The guide rod is vertically installed at the four corners of the bottom of the rectangular corrugated pipe. Its top end passes through the limiting sleeve at the bottom edge of the top edge fixing cover and is slidably connected to it. The spring is sleeved on the guide rod and located below the limiting sleeve to provide downward elastic force to ensure that the bottom edge of the corrugated pipe always maintains good contact with the plate.

[0005] The rectangular corrugated pipe is made of flexible PVC material, with multiple evenly distributed small holes on its sidewalls. Each hole has a diameter of 2mm and a spacing of 10mm. These holes serve as auxiliary dust collection channels, enhancing the uniformity of internal airflow and preventing dust escape due to excessive localized airflow. The bottom sealing strip of the rectangular corrugated pipe is made of silicone material with a U-shaped cross-section. The bottom of the sealing strip has serrated protrusions that effectively embed into the tiny grooves on the surface of the rock wool composite board, further improving the sealing effect.

[0006] The inner wall of the suction pipe is coated with Teflon to reduce airflow resistance and prevent dust adhesion; the suction fan adopts frequency conversion control, which can automatically adjust the speed according to the amount of dust during the cutting process to ensure that the suction efficiency is always kept at the best level; the multi-layer filter screen of the dust collection box consists of a pre-filter, a HEPA high-efficiency filter and an activated carbon adsorption layer from top to bottom, which are used to intercept large dust particles, fine particulate matter and harmful gases, respectively, and finally discharge clean air.

[0007] The guide rod and the limiting sleeve are slidably connected via a linear bearing. The outer ring of the linear bearing is interference-fitted with the inner wall of the limiting sleeve, while the inner ring is clearance-fitted with the outer wall of the guide rod. This ensures smooth up-and-down movement of the guide rod and effectively reduces frictional loss. Under normal operating conditions, the elastic force provided by the spring maintains the pressure between the bottom edge of the rectangular corrugated pipe and the surface of the rock wool composite board within an appropriate range, preventing damage to the board due to excessive pressure or seal failure due to insufficient pressure.

[0008] The transparent observation window is made of double-layered tempered glass, with a desiccant filled between the two layers and vacuumed to prevent fogging from affecting the clarity of vision. The observation window is connected to the support frame by a rubber sealing ring, and a magnetic strip is embedded in the sealing ring to enhance the sealing performance through magnetic attraction, while also facilitating disassembly and cleaning.

[0009] An arc-shaped guide plate is installed at the bottom of the guide rod. One end of the arc-shaped guide plate is connected to the bottom of the rectangular corrugated pipe, and the other end is bent upward.

[0010] The beneficial effects of this utility model are: This invention constructs a highly efficient and closed dust removal system through the synergistic action of a cutting mechanism, an isolation component, a dust collection mechanism, and an adjustment component. The rectangular corrugated pipe of the isolation component, combined with a bottom sealing strip, creates a dynamic, sealed space around the blade during cutting, effectively confining the rock wool dust generated at the source and preventing its escape. The spring and guide rod structure in the adjustment component ensures that the sealing strip adapts and fits tightly to surfaces with varying flatness, maintaining reliable sealing. The efficient negative pressure generated by the dust collection mechanism instantly draws the dust from the sealed space through pipes to a dust collection box, where it is purified by multi-layer filters. This not only eliminates the health risks of dust inhalation by operators, effectively preventing occupational diseases such as pneumoconiosis, but also reduces the risk of dust explosions, ensuring the health and safety of workers and production. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a three-dimensional structural diagram of the dust collection mechanism of this utility model.

[0013] Figure 3 This is a schematic diagram of the structure of the isolation component of this utility model.

[0014] Figure 4 This is a three-dimensional schematic diagram of the internal structure of this utility model.

[0015] Figure 5 This is a three-dimensional cross-sectional view of the present invention.

[0016] Figure 6 yes Figure 5 A magnified view of a portion of point A in the middle.

[0017] The attached figures are labeled as follows: 1. Support frame; 2. Cutting mechanism; 3. Isolation component; 4. Dust collection mechanism; 5. Adjustment component; 101. Transparent observation window; 201. Drive motor; 202. Transmission shaft; 203. Cutting blade; 301. Rectangular corrugated pipe; 302. Bottom edge sealing strip; 303. Top edge fixing cover; 401. Dust collection pipe; 402. Dust collection fan; 403. Dust collection box; 404. Filter screen; 501. Guide rod; 502. Spring; 503. Arc-shaped guide plate; 504. Limiting sleeve. Detailed Implementation

[0018] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0019] This utility model discloses a dust suppression device for cutting rock wool composite panels. The device mainly includes a support frame 1, a cutting mechanism 2, an isolation component 3, a dust collection mechanism 4, and an adjustment component 5. The support frame 1 is welded from rectangular metal profiles, forming a cuboid structure. A conveying mechanism is installed at the bottom, on which the rock wool composite panel to be cut is fixed. The cutting mechanism 2 includes a drive motor 201, a transmission shaft 202, and a cutting blade 203. The drive motor 201 is bolted to the top beam of the support frame 1. One end of the transmission shaft 202 is connected to the output end of the drive motor 201, and the other end passes through the beam and extends to the cutting area above the conveying mechanism. The cutting blade 203 is fixed to the end of the transmission shaft 202 with a locking nut. The cutting blade 203 is located inside the support frame 1 and vertically downwards, used to cut the rock wool composite panel fixed on the conveying mechanism. The positioning of the cutting mechanism 2 allows the cutting blade 203 to rotate vertically and cut the rock wool composite panel, while ensuring the stability of the cutting process.

[0020] The isolation component 3 includes a rectangular corrugated tube 301, a bottom edge sealing strip 302, and a top edge fixing cover 303. The rectangular corrugated tube 301 is fitted over the cutting blade 203, forming a completely enclosed space to isolate dust generated during the cutting process. The rectangular corrugated tube 301 is made of flexible PVC material, and its sidewall has multiple evenly distributed small holes with a diameter of 2mm and a spacing of 10mm. These small holes serve as auxiliary dust suction channels to enhance the uniformity of internal airflow. The bottom end of the rectangular corrugated tube 301 is tightly fitted to the surface of the rock wool composite board through the bottom edge sealing strip 302. The bottom edge sealing strip 302 is made of silicone material and has a "U" shaped cross-section. The bottom of the bottom edge sealing strip 302 has serrated protrusions that can effectively embed into the tiny grooves on the surface of the rock wool composite board, further improving the sealing effect. The top end of the rectangular corrugated pipe 301 is sealed to the transparent observation window 101 on the support frame 1 via a top edge fixing cover 303. The transparent observation window 101 is made of double-layered tempered glass, with a desiccant filled between the two layers and vacuum-sealed to prevent fogging from affecting the clarity of vision. The transparent observation window 101 is connected to the support frame 1 around its perimeter by a rubber sealing ring. The sealing ring has a magnetic strip embedded in it, which enhances the sealing performance through magnetic attraction and also facilitates disassembly and cleaning.

[0021] The vacuuming mechanism 4 includes a vacuum duct 401, a vacuum fan 402, and a dust collection box 403. One end of the vacuum duct 401 is connected to the side wall of the rectangular corrugated pipe 301, and the other end is connected to the air inlet of the vacuum fan 402. The air outlet of the vacuum fan 402 is connected to the dust collection box 403. The inner wall of the vacuum duct 401 is coated with Teflon to reduce airflow resistance and prevent dust adhesion. The vacuum fan 402 adopts a frequency conversion control method, which can automatically adjust the speed according to the amount of dust during the cutting process to ensure that the vacuuming efficiency is always kept at the optimal level. The dust collection box 403 is equipped with multiple layers of filters 404, from top to bottom: a pre-filter, a HEPA high-efficiency filter, and an activated carbon adsorption layer, which are used to intercept large dust particles, fine particulate matter, and harmful gases, respectively, and finally discharge clean air. The vacuuming mechanism 4 introduces the dust-laden airflow in the rectangular corrugated pipe 301 into the dust collection box 403 through the vacuum duct 401, and achieves dust separation and collection after multiple layers of filtration.

[0022] The adjusting assembly 5 includes a guide rod 501, a spring 502, and a limiting sleeve 504. The guide rod 501 is vertically installed at the four corners of the bottom end of the rectangular corrugated pipe 301, and its top end passes through and slidably connects to the limiting sleeve 504 at the bottom edge of the top edge fixing cover 303. The guide rod 501 and the limiting sleeve 504 are slidably connected by a linear bearing. The outer ring of the linear bearing is interference-fitted with the inner wall of the limiting sleeve 504, and the inner ring is clearance-fitted with the outer wall of the guide rod 501. This ensures smooth up-and-down movement of the guide rod 501 and effectively reduces frictional loss. The spring 502 is sleeved on the guide rod 501 and located below the limiting sleeve 504. It provides a downward elastic force to ensure that the bottom edge of the rectangular corrugated pipe 301 always maintains good contact with the plate. For example, the free length of spring 502 is 50mm, the compressed length is 30mm, and the elastic coefficient is 2N / mm. Under normal working conditions, the elastic force provided by spring 502 keeps the pressure between the bottom edge of rectangular corrugated pipe 301 and the surface of rock wool composite board within an appropriate range, so that the board will not be damaged due to excessive pressure, nor will the seal fail due to insufficient pressure.

[0023] An arc-shaped guide plate 503 is installed at the bottom of the guide rod 501. One end of the arc-shaped guide plate 503 is connected to the bottom of the rectangular corrugated pipe 301, and the other end is bent upward. When the conveying mechanism transports the rock wool composite board, the end of the board first contacts and squeezes the upwardly bent arc-shaped guide plate 503. The arc-shaped guide plate converts the horizontal thrust into an upward displacement, which drives the entire rectangular corrugated pipe 301 to lift, providing a moving channel for the board and preventing the isolation component 3 from obstructing the movement of the board, thus realizing the automatic feeding function.

[0024] Work process: In actual operation, the operator first places the rock wool composite board to be cut on the conveying mechanism and fixes it in place with clamps. Then, the drive motor 201 is started, causing the transmission shaft 202 to drive the cutting blade 203 to rotate at high speed, while the dust extraction fan 402 is turned on to enter the working state. At this time, the conveying mechanism starts, moving the rock wool composite board to be cut horizontally into the cutting area. When the front end of the rock wool composite board contacts the curved surface of the arc-shaped guide plate 503, it generates a horizontal thrust on the pressure plate. This thrust pushes the arc-shaped guide plate 503, which in turn drives the guide rod 501 to overcome the elastic force of the spring 502 and slide upward within the limiting sleeve 504. The rectangular corrugated tube 301 is then lifted upward, allowing the rock wool composite board to smoothly reach the predetermined cutting position. At this time, the spring is compressed, and the continuous reaction force generated by the spring, through the guide rod 501 and the arc-shaped guide plate 503, tightly and flexibly presses the bottom edge sealing strip 302 of the rectangular corrugated tube 301 onto the surface of the board, forming a sealed dust removal chamber surrounding the cutting blade 203. Through the cooperation of the guide rod 501 and the spring 502, it is ensured that the bottom edge of the rectangular corrugated tube 301 always maintains good contact with the surface of the rock wool composite board. When there is slight unevenness on the surface of the rock wool composite board, the guide rod 501 slides up and down in the limiting sleeve 504. The linear bearing reduces friction loss, while the elastic force provided by the spring 502 keeps the pressure between the bottom edge of the rectangular corrugated pipe 301 and the board within an appropriate range, so that the board will not be damaged due to excessive pressure, nor will the seal fail due to insufficient pressure.

[0025] Next, the rock wool composite board is cut vertically by a high-speed rotating cutting blade 203. Since the rectangular corrugated pipe 301 is fitted around the cutting blade 203 and tightly adheres to the surface of the rock wool composite board via the bottom sealing strip 302, a completely sealed space is formed, effectively isolating dust generated during the cutting process. The serrated protrusions of the bottom sealing strip 302 are embedded in tiny grooves on the surface of the rock wool composite board, further enhancing the sealing effect and preventing dust leakage.

[0026] During the cutting process, the vacuum fan 402 extracts the dust-laden airflow from the rectangular corrugated pipe 301 through the vacuum pipe 401 and introduces it into the dust collection box 403. The Teflon coating on the inner wall of the vacuum pipe 401 reduces airflow resistance and prevents dust adhesion, thus ensuring smooth airflow. The multi-layer filter 404 in the dust collection box 403 intercepts dust particles and harmful gases of different sizes in stages. The pre-filter intercepts large dust particles, the HEPA high-efficiency filter captures fine particles, and the activated carbon adsorption layer adsorbs harmful gases, ultimately releasing clean air. This achieves efficient separation and collection of dust, effectively reducing dust pollution to the environment.

[0027] The small holes on the side wall of the rectangular corrugated pipe 301 serve as auxiliary dust suction channels, evenly distributing internal airflow and preventing dust escape due to excessive local airflow. This not only improves suction efficiency but also ensures airflow stability throughout the enclosed space. The transparent observation window 101 allows operators to monitor the cutting process in real time. A desiccant is filled between the double-layered tempered glass, and a vacuum is applied to prevent fogging from affecting visibility. The magnetic strip embedded in the rubber sealing ring enhances the sealing performance between the transparent observation window 101 and the support frame 1 through magnetic attraction. It also facilitates disassembly and cleaning, improving operational convenience and safety. This allows operators to observe the working status of the cutting blade 203 at any time while ensuring a proper seal.

[0028] In practical applications, the vacuum fan 402 employs frequency conversion control, automatically adjusting its speed based on the amount of dust generated during the cutting process to maintain optimal dust collection efficiency. For example, when the cutting speed increases or the cutting depth increases, the amount of dust generated also increases, and the vacuum fan 402 automatically increases its speed to enhance its suction power; conversely, when the cutting speed decreases or the amount of dust decreases, the vacuum fan 402 reduces its speed to save energy. This intelligent control method not only improves the system's adaptability but also extends the equipment's service life.

[0029] This invention constructs a highly efficient and closed dust removal system through the synergistic action of the cutting mechanism 2, the isolation component 3, the dust collection mechanism 4, and the adjustment component 5. The rectangular corrugated pipe of the isolation component 3, in conjunction with the bottom sealing strip, forms a dynamic, sealed space around the blade during cutting, effectively confining the rock wool dust generated during cutting and preventing its escape. The spring and guide rod structure in the adjustment component ensures that the sealing strip adapts and closely fits surfaces with varying flatness, maintaining reliable sealing. The efficient negative pressure generated by the dust collection mechanism instantly draws the dust from the sealed space through pipes to the dust collection box, where it is purified by multi-layer filters. This not only eliminates the health risks of dust inhalation by operators, effectively preventing occupational diseases such as pneumoconiosis, but also reduces the risk of dust explosions, ensuring the health and safety of workers and production.

[0030] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A dust suppression device for cutting rock wool composite panels, characterized in that: The system includes a support frame (1), a cutting mechanism (2), an isolation component (3), a dust collection mechanism (4), and an adjustment component (5). The support frame (1) is welded from rectangular metal profiles, and a conveying mechanism is installed at the bottom. The rock wool composite board to be cut is fixed on the conveying mechanism. The cutting mechanism (2) includes a drive motor (201), a transmission shaft (202), and a cutting blade (203). The drive motor (201) is fixed to the top beam of the support frame (1) by bolts. One end of the transmission shaft (202) is connected to the output end of the drive motor (201), and the other end passes through the beam and extends to the cutting area above the conveying mechanism. The cutting blade (203) is fixed to the end of the transmission shaft (202) by a locking nut. The isolation component (3) includes a rectangular corrugated pipe (301), a bottom sealing strip (302), and a top fixing cover (303). The rectangular corrugated pipe (301) is fitted around the cutting blade (203), and its bottom end is connected to the bottom sealing strip (302). The top of the pipe is tightly fitted to the surface of the rock wool composite board, and is sealed to the transparent observation window (101) on the support frame (1) through the top edge fixing cover (303); the dust collection mechanism (4) includes a dust collection pipe (401), a dust collection fan (402) and a dust collection box (403). One end of the dust collection pipe (401) is connected to the side wall of the rectangular corrugated pipe (301), and the other end is connected to the air inlet of the dust collection fan (402). The air outlet of the dust collection fan (402) is connected to the dust collection box (403). The dust collection box (403) is equipped with multiple layers of filter screen (404); the adjustment component (5) includes a guide rod (501), a spring (502) and a limiting sleeve (504). The guide rod (501) is vertically installed at the four corners of the bottom end of the rectangular corrugated pipe (301). Its top end passes through the limiting sleeve (504) at the bottom edge of the top edge fixing cover (303) and is slidably connected to it. The spring (502) is sleeved on the guide rod (501) and located below the limiting sleeve (504).

2. The dust suppression device for cutting rock wool composite panels according to claim 1, characterized in that: The rectangular corrugated pipe (301) is made of flexible PVC material. Its side wall has multiple evenly distributed small holes with a diameter of 2mm and a spacing of 10mm. The bottom sealing strip (302) of the rectangular corrugated pipe (301) is made of silicone material with a "U" shaped cross section. The bottom sealing strip (302) has serrated protrusions at the bottom.

3. The dust suppression device for cutting rock wool composite panels according to claim 1 or 2, characterized in that: The inner wall of the dust collection pipe (401) is coated with Teflon coating, the dust collection fan (402) adopts frequency conversion control, and the multi-layer filter screen (404) in the dust collection box (403) consists of a pre-filter, a HEPA high-efficiency filter and an activated carbon adsorption layer from top to bottom.

4. The dust suppression device for cutting rock wool composite panels according to claim 1 or 2, characterized in that: The guide rod (501) and the limiting sleeve (504) are slidably connected by a linear bearing. The outer ring of the linear bearing is interference-fitted with the inner wall of the limiting sleeve (504), and the inner ring is clearance-fitted with the outer wall of the guide rod (501).

5. The dust suppression device for cutting rock wool composite panels according to claim 1, characterized in that: The transparent observation window (101) is made of double-layered tempered glass. A desiccant is filled between the two layers of glass and a vacuum treatment is performed. The transparent observation window (101) is connected to the support frame (1) around its perimeter by a rubber sealing ring. A magnetic strip is embedded in the sealing ring.

6. The dust suppression device for cutting rock wool composite panels according to claim 1 or 2, characterized in that: The bottom end of the guide rod (501) is equipped with an arc-shaped guide plate (503). One end of the arc-shaped guide plate (503) is connected to the bottom end of the rectangular corrugated pipe (301), and the other end is bent upward.

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