A device for collecting sparks and debris for grinding and polishing the outer surface of a sleeve

CN224725665UActive Publication Date: 2026-09-08ZHEJIANG DAZHEN HARDWARE TOOLS CO LTD
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Patent Information

Application Number
CN202522189815.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-16
Publication Date
2026-09-08
Estimated Expiration
2035-10-16

AI Technical Summary

Technical Problem

该加工模式存在显著的安全与健康隐患:一方面,磨抛过程中产生的火星无任何防护措施,在车间内随意飞溅,易引燃周边易燃物料,存在引发火灾的重大安全风险;另一方面,磨抛产生的有害烟雾与粉尘弥漫在车间空气中,长期被操作工人吸入,会对其呼吸系统等造成不可逆的身体伤害

Benefits of technology

[0007] Secondly, the fume hood can initially gather the smoke generated by grinding and polishing, and together with the variable frequency fan at the top of the casing, it can create negative pressure to promptly discharge the smoke through the exhaust pipe. At the same time, the water in the water tank can absorb some of the harmful gases and dust in the smoke. Under the dual effect, the concentration of harmful pollutants in the workshop is greatly reduced, protecting the health of the operators.

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Abstract

The utility model discloses a sleeve outer surface grinding and polishing use spark fire smoke collection and debris recovery device, including a machine shell, a frequency conversion fan and a smoke pipe, the machine shell below is provided with two groups of through door hole, and every group of through door hole is formed by front door hole and rear door hole combination, the passage between every group front door hole and rear door hole all is provided with a water tank of upper end opening, the outside of machine shell between two groups of front door hole is installed with a double -shaft motor, and the two motor shafts of double -shaft motor respectively towards two groups of front door hole extension, and the free end of every motor shaft all is installed with a grinding wheel, the upper end of every front door hole all is solid and is equipped with a smoke hood that extends to the machine shell outside. The utility model grinding and polishing grinding wheel is in the combination protection environment of "machine shell + smoke hood + water tank", and the spark of grinding and polishing produces and can directly splash into the water tank below, and water can extinguish spark quickly, and the safety hidden danger that spark splashing causes fire is prevented from the source, and the workshop operation safety is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of sleeve production and processing technology, and more specifically to a device for collecting sparks and debris for polishing the outer surface of sleeves. Background Technology

[0002] In the field of grinding and polishing the outer surface of sleeves, the conventional processing method involves workers directly holding the sleeve and performing the grinding and polishing operation on the exposed grinding wheel. This processing mode poses significant safety and health hazards: on the one hand, sparks generated during the grinding and polishing process are generated without any protective measures and fly around the workshop at will, easily igniting surrounding flammable materials and posing a major safety risk of fire; on the other hand, the harmful fumes and dust generated during grinding and polishing permeate the workshop air, and long-term inhalation by operators can cause irreversible damage to their respiratory system and other bodily functions.

[0003] Meanwhile, conventional processing methods lack an effective waste recycling mechanism. Metal shavings generated from grinding and polishing are directly scattered on the workshop floor, which not only increases the workload of workshop cleaning and pollutes the working environment, but also wastes metal resources with recycling value, making it impossible to achieve secondary utilization of resources and reducing the overall economic efficiency of the processing process. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned defects of the prior art and provide a spark-proof smoke collection and debris recycling device for grinding and polishing the outer surface of a sleeve that significantly improves operational safety, effectively purifies the workshop environment, and realizes resource recycling and efficiency improvement.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a spark-proof smoke collection and debris recovery device for polishing the outer surface of a sleeve, comprising a housing, a variable frequency fan mounted on the top of the housing, and a smoke exhaust pipe sealed to the outlet end of the variable frequency fan; characterized in that two sets of through-holes are provided at the bottom of the housing, each set of through-holes being formed by a combination of a front door and a rear door, and the vertical height of the front door in each set being greater than that of the rear door; a water tank with an open top is provided in the passage between each set of front and rear door openings, the front end of the water tank extending outward from the front door opening, and the rear end of the water tank extending outward from the rear door opening; a dual-shaft motor is installed outside the housing between the two sets of front door openings, the two motor shafts of the dual-shaft motor extending toward the two sets of front door openings respectively, and a grinding wheel is installed at the free end of each motor shaft; a smoke hood extending outward from the housing is fixed at the upper end of each front door opening.

[0006] This utility model's grinding wheel is placed in a combined protective environment of "machine housing + fume hood + water tank". Sparks generated during grinding and polishing will directly splash into the water tank below, and the water can quickly extinguish the sparks, eliminating the safety hazard of fire caused by sparks from the source and ensuring the safety of workshop operations.

[0007] Secondly, the fume hood can initially gather the smoke generated by grinding and polishing, and together with the variable frequency fan at the top of the casing, it can create negative pressure to promptly discharge the smoke through the exhaust pipe. At the same time, the water in the water tank can absorb some of the harmful gases and dust in the smoke. Under the dual effect, the concentration of harmful pollutants in the workshop is greatly reduced, protecting the health of the operators.

[0008] Finally, the metal shavings that fall off during the polishing process will naturally seep into the water tank, making it easy to collect and reuse them. This not only avoids environmental pollution and increased cleaning costs, but also recovers metal resources, directly improving the economic efficiency of the processing procedure.

[0009] Preferably, each of the water tanks is equipped with four fixed pulleys at its bottom, and at least two of the four fixed pulleys are equipped with a braking structure.

[0010] The fixed pulley design of this utility model allows the water tank to move flexibly. Operators can freely adjust the distance between the water tank and the front opening according to the specifications of the polishing sleeve, ensuring that more sparks generated during polishing with sleeves of different sizes can splash into the water tank, improving the spark extinguishing effect. At the same time, the water tank, which is independent of the machine casing, can be easily pulled out as a whole with the help of the fixed pulley, facilitating quick replacement of the water quality and thorough cleaning of the inside of the water tank, reducing the difficulty of equipment maintenance, and ensuring that the water tank continues to perform its spark extinguishing and dust adsorption functions.

[0011] Preferably, each water tank is equipped with a water level sensor inside, and a water supply pipe is arranged next to the water level sensor. The water supply pipe is electrically connected to the water level sensor and performs real-time water supply based on the water level signal in the water tank monitored by the water level sensor.

[0012] This invention uses a water level sensor to monitor the water level in the tank in real time, accurately capturing the drop in water level caused by evaporation and adsorption of debris. The water supply pipe automatically replenishes water according to the sensor's instructions, ensuring that the water level in the tank is always maintained within the optimal range for effective fire extinguishing and adsorption. This avoids problems such as insufficient extinguishing of sparks and weakened smoke adsorption due to low water levels. It eliminates the need for frequent manual checks and water replenishment, reducing manpower and ensuring continuous and stable operation of the equipment.

[0013] Preferably, each water tank is provided with an impurity filter screen at the middle section, the impurity filter screen is arranged along the width direction of the water tank, and the interior of the water tank is divided into two independent sections.

[0014] The mesh size of this impurity filter is larger than the particle size of metal scraps but smaller than the particle size of workshop lint and other impurities. By limiting its mesh size, it allows metal scraps generated during grinding and polishing to pass through smoothly and settle in the water tank without affecting subsequent centralized recycling. At the same time, it can accurately intercept other impurities such as workshop lint and dust clumps, preventing these impurities from floating on the water surface or clogging the water supply pipe or entangled in the water level sensor, ensuring the stability of the water function in the water tank. It also reduces the impact of impurities on the purity of metal scraps and improves the reuse value of recycled scraps.

[0015] Preferably, each of the water tanks is filled with several strong magnetic rods, and each of the strong magnetic rods has a hook connected to both ends. The strong magnetic rods can be detachably hung on the edge of the water tank through the hooks at both ends.

[0016] This utility model's strong magnetic rod can quickly adsorb metal debris in the water tank, preventing the debris from dispersing and settling in the water and making it difficult to collect. This significantly improves the recycling efficiency and purity of the metal debris. At the same time, the strong magnetic rod can be detachably hung on the edge of the water tank via a hook. Afterward, simply remove the hook to take out the strong magnetic rod full of debris. The debris cleaning operation is convenient, without the need to empty the water tank or use additional tools to retrieve it, reducing the difficulty of the recycling operation, and without affecting the normal spark extinguishing and smoke adsorption functions of the water tank.

[0017] Preferably, each of the smoke hoods is equipped with a silicone cloth curtain, and each smoke hood has a waist-shaped hole along the vertical direction. The silicone cloth curtain is engaged with the waist-shaped hole by a locking screw to form a fixed structure that can be adjusted in position along the length of the waist-shaped hole.

[0018] This utility model's silicone curtain can be adjusted up and down along the waist-shaped hole using locking screws, allowing for flexible adjustment of the shielding area according to the size of the polishing sleeve, minimizing the open area of ​​the front doorway. This not only avoids interference from the curtain to the entry and exit of sleeves of different sizes during operation, but also effectively blocks sparks, smoke, and dust from spreading out of the doorway, reducing direct contact with operators. At the same time, it guides more pollutants into the machine casing for subsequent system treatment, further improving the purification effect of the workshop environment.

[0019] Preferably, a light is installed on the outer surface of the housing in the area above the two sets of front door openings.

[0020] This utility model features a lighting fixture installed above the front doorway, which can directly provide sufficient illumination to the grinding and polishing area, solving the problem of insufficient overall lighting in the workshop or poor light angles that prevent operators from clearly seeing the details of the sleeve grinding and polishing. It can help operators accurately control the grinding and polishing precision, reduce sleeve processing errors, and reduce the risk of safety accidents caused by misoperation due to poor visibility, thereby improving operational safety and processing quality.

[0021] Preferably, an air filter is installed at the connection between the fan casing and the housing of the variable frequency fan.

[0022] This utility model air filter can intercept larger dust particles or impurities that have not been adsorbed by the water tank before smoke enters the variable frequency fan, preventing such pollutants from entering the fan and reducing the wear of dust on the fan impeller, motor and other core components, thus extending the service life of the variable frequency fan. At the same time, it can prevent dust from clogging the fan channel, ensure the stability of the fan's negative pressure suction, and ensure that the smoke collection efficiency does not decrease.

[0023] Preferably, a smoke sensor is installed inside the casing. The smoke sensor is electrically connected to the variable frequency fan and can adjust the operating power of the variable frequency fan according to the smoke concentration signal inside the casing.

[0024] This invention uses a smoke sensor to monitor the amount of smoke inside the casing in real time, enabling intelligent adjustment of the variable frequency fan power. When the smoke concentration is high, the power is automatically increased to enhance the smoke extraction effect, and when the smoke concentration is low, the power is automatically reduced. This not only maintains the best smoke collection efficiency and avoids energy waste caused by excessive power, but also reduces the continuous operating loss of the fan under high load conditions, further extending the service life of the fan, thus balancing environmental protection and economy.

[0025] Beneficial effects: (1) Dual protection of safety and environmental protection: By using "fume hood + water tank" to intercept grinding sparks and absorb some smoke, and in conjunction with variable frequency fan and exhaust pipe to discharge pollutants, it can not only eliminate the risk of fire caused by sparks, but also purify the air in the workshop and protect the health of operators.

[0026] (2) Convenient resource recycling and maintenance: The impurity filter screen inside the water tank intercepts impurities such as flying catkins, and the strong magnetic rod adsorbs metal debris, which facilitates the secondary use of resources; the water tank is equipped with fixed pulleys that can be pulled out flexibly, and combined with the water level sensor, it automatically replenishes water, reducing the difficulty of equipment maintenance and labor costs.

[0027] (3) Intelligent, efficient and highly adaptable: The smoke sensor is linked to the variable frequency fan to intelligently adjust the power, taking into account both smoke exhaust effect and energy saving; the silicone cloth curtain can be adjusted along the waist-shaped hole and the water tank can be moved to adapt to different specifications of sleeve polishing, while the lighting ensures processing accuracy. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Side view; Figure 3 This is a schematic diagram of the structure of the casing of this utility model; Figure 4 This is a schematic diagram of the structure of the water tank of this utility model.

[0029] In the diagram: 1-Casing, 2-Variable frequency fan, 3-Exhaust pipe, 4-Front door opening, 5-Rear door opening, 6-Water tank, 7-Fume hood, 8-Dual-axis motor, 9-Grinding wheel, 10-Fixed pulley, 11-Brake structure, 12-Water level sensor, 13-Water supply pipe, 14-Impurity filter screen, 15-Strong magnetic rod, 16-Hook, 17-Silicone cloth curtain, 18-Oval hole, 19-Locking screw, 20-Lighting lamp, 21-Air filter screen, 22-Smoke sensor. Detailed Implementation

[0030] To make the technical means, creative features and objectives of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments.

[0031] Example: Figure 1 As shown, a spark-proof smoke collection and debris recovery device for polishing the outer surface of a sleeve includes a housing 1. A variable frequency fan 2 is mounted on the top of the housing 1, and a smoke exhaust pipe 3 is sealed to the outlet end of the variable frequency fan 2. An air filter 21 is mounted at the connection between the fan housing and the housing of the variable frequency fan 2. A smoke sensor 22 is mounted inside the housing 1. The smoke sensor 22 is electrically connected to the variable frequency fan 2 and can adjust the operating power of the variable frequency fan 2 according to the smoke concentration signal sensed inside the housing.

[0032] like Figure 2 , Figure 3 and Figure 4 As shown, two sets of through-holes are provided at the bottom of the casing 1. Each set of through-holes is formed by a combination of a front doorway 4 and a rear doorway 5, and the vertical height of the front doorway 4 in each set is greater than that of the rear doorway 5. A water tank 6 with an open top is provided in the passage between the front doorway 4 and the rear doorway 5 in each set. The front end of the water tank 6 extends outward from the front doorway 4, and the rear end of the water tank 6 extends outward from the rear doorway 5. A dual-shaft motor 8 is installed on the outside of the casing 1 between the two sets of front doorways. The two motor shafts of the dual-shaft motor 8 extend toward the two sets of front doorways 4 respectively, and a grinding wheel 9 is installed at the free end of each motor shaft. A fume hood 7 extending outward from the casing is fixed at the upper end of each front doorway 4.

[0033] Each water tank 6 is equipped with four fixed pulleys 10 at its bottom, and two of the four fixed pulleys 10 are equipped with a brake structure 11.

[0034] Each water tank 6 is equipped with a water level sensor 12 inside. A water supply pipe 13 is arranged next to the water level sensor 12. The water supply pipe 13 is electrically connected to the water level sensor 12 and performs real-time water supply action according to the water level signal in the water tank monitored by the water level sensor 12.

[0035] A filter screen 14 is fixedly installed in the middle of each water tank 6. The filter screen 14 is arranged along the width of the water tank, dividing the interior of the water tank into two independent sections. The mesh size of the filter screen is larger than the particle size of metal shavings but smaller than the particle size of workshop lint and other impurities.

[0036] Each water tank 6 contains three strong magnetic rods 15, and each of the two ends of each strong magnetic rod 15 is connected to a hook 16. The strong magnetic rods 15 can be detachably hung on the edge of the water tank 6 through the hooks 16 at both ends.

[0037] Each smoke hood 7 is equipped with a silicone cloth curtain 17, and each smoke hood 7 has a waist-shaped hole 18 opened in the vertical direction. The silicone cloth curtain 17 is engaged with the waist-shaped hole 18 by a locking screw 19 to form a fixed structure that can be adjusted in position along the length of the waist-shaped hole.

[0038] A light 20 is installed on the outer surface of the casing 1 in the area above the two sets of front door openings.

[0039] Work process: (1) Preparation stage: Place the polishing sleeve at the front door opening. According to the sleeve specifications, adjust the distance of the water tank extending out of the front door opening by using the fixed pulley under the water tank. Then adjust the vertical position of the silicone cloth curtain on the fume hood (along the waist-shaped hole) to reduce the open area of ​​the door opening. Turn on the lights to ensure a clear view of the work area.

[0040] (2) Polishing and pollutant treatment stage: Start the dual-shaft motor to drive the grinding wheel to polish the outer surface of the sleeve; the sparks generated by polishing are directly splashed into the water tank below and extinguished by water. The smoke and dust are gathered by the smoke hood and then sucked into the casing by the negative pressure generated by the variable frequency fan at the top of the casing. Some dust and harmful gases are adsorbed by the water in the water tank. The remaining pollutants are filtered by the air filter and discharged through the smoke exhaust pipe. The smoke exhaust pipe can be connected to the smoke environmental protection equipment on the roof.

[0041] (3) Intelligent adjustment and maintenance stage: The water level sensor in the water tank monitors the water level in real time. When the water level is too low, the water supply pipe is triggered to automatically replenish water. The smoke sensor in the casing adjusts the power of the variable frequency fan according to the smoke concentration (increase the power when the concentration is high and decrease the power when the concentration is low). After the polishing is completed, the water tank can be pulled out, the strong magnetic rod can be removed to clean the metal debris and change the water quality. At the same time, the impurities on the impurity filter screen can be cleaned to complete the equipment maintenance.

Claims

1. A device for collecting sparks and debris during polishing of the outer surface of a sleeve, comprising a housing, wherein a variable frequency fan is mounted on the top of the housing, and an exhaust pipe is sealed to the outlet end of the variable frequency fan; characterized in that, The lower part of the casing has two sets of through door openings. Each set of through door openings is formed by a combination of a front door opening and a rear door opening, and the vertical height of the front door opening in each set is greater than that of the rear door opening. Each set of passageways between the front and rear doorways is equipped with a water tank with an open top. The front end of the water tank extends outward from the front doorway, and the rear end of the water tank extends outward from the rear doorway. A dual-axis motor is installed on the outside of the casing between the two sets of front door openings. The two motor shafts of the dual-axis motor extend toward the two sets of front door openings respectively, and a grinding wheel is installed on the free end of each motor shaft. Each of the aforementioned front door openings is fixed with a fume hood extending outwards from the casing at its upper end.

2. The device for collecting sparks and debris during polishing of the outer surface of a sleeve according to claim 1, characterized in that, Each of the water tanks is equipped with four fixed pulleys at its bottom, and at least two of the four fixed pulleys are equipped with a braking mechanism.

3. The device for collecting sparks and debris during polishing of the outer surface of a sleeve according to claim 1, characterized in that, Each of the water tanks is equipped with a water level sensor inside, and a water supply pipe is arranged next to the water level sensor.

4. The device for collecting sparks and debris during polishing of the outer surface of a sleeve according to claim 1, 2, or 3, characterized in that, Each of the water tanks is equipped with an impurity filter screen at the middle section. The impurity filter screen is arranged along the width of the water tank, dividing the interior of the water tank into two independent sections.

5. The device for collecting sparks and debris during polishing of the outer surface of a sleeve according to claim 1, 2, or 3, characterized in that, Each of the water tanks contains several strong magnetic rods, and each of the strong magnetic rods has a hook at each end. The strong magnetic rods can be detachably hung on the edge of the water tank via the hooks at both ends.

6. The device for collecting sparks and debris during polishing of the outer surface of a sleeve according to claim 1, characterized in that, Each of the aforementioned smoke hoods is equipped with a silicone cloth curtain, and each smoke hood has a waist-shaped hole along the vertical direction. The silicone cloth curtain is engaged with the waist-shaped hole by a locking screw to form a fixed structure that can be adjusted in position along the length of the waist-shaped hole.

7. The device for collecting sparks and debris during polishing of the outer surface of a sleeve according to claim 1, characterized in that, A light is installed on the outer surface of the casing in the area above the two sets of front door openings.

8. The device for collecting sparks and debris during polishing of the outer surface of a sleeve according to claim 1, characterized in that, An air filter is installed at the connection between the fan casing and the housing of the variable frequency fan.

9. The device for collecting sparks and debris for polishing the outer surface of a sleeve according to claim 1 or 8, characterized in that, A smoke sensor is installed inside the casing.