Continuous Type Metal Crawler Shot Blasting Machine

The Continuous Type Metal Crawler Shot Blasting Machine is a high-efficiency, automated surface treatment equipment widely used in the manufacturing and processing industries. As the name suggests, its core characteristics lie in the "continuous" operation mode and the "metal crawler" conveying system, which enables the continuous feeding, processing, and discharging of workpieces, greatly improving production efficiency and reducing manual intervention. This type of shot blasting machine is specially designed to handle small and medium-sized workpieces with irregular shapes, such as castings, forgings, stamping parts, and hardware components. It can effectively remove rust, oxide scale, oil stains, and other impurities on the surface of workpieces, while enhancing the surface roughness of workpieces to improve the adhesion of subsequent coating processes. In addition, the shot blasting process can also induce residual compressive stress on the surface of the workpiece, thereby improving the fatigue strength and service life of the workpiece. With the continuous development of industrial automation, the Continuous Type Metal Crawler Shot Blasting Machine has been continuously upgraded and optimized, and its performance, stability, and intelligence have been significantly improved, becoming an indispensable key equipment in the surface treatment process of many industries.

The structural composition of the Continuous Type Metal Crawler Shot Blasting Machine is relatively complex, mainly including the shot blasting chamber, metal crawler conveying system, shot blasting device, shot recycling system, dust removal system, and electrical control system. Each part cooperates closely to ensure the smooth progress of the shot blasting process. The shot blasting chamber is the core working area of the equipment, which is usually made of high-wear-resistant steel plates or lined with wear-resistant castings to withstand the impact and abrasion of shot particles. The inner wall of the chamber is designed with a special curved surface to guide the flow of shot particles and avoid dead corners, ensuring that the surface of the workpiece is uniformly blasted. The metal crawler conveying system is responsible for the continuous transportation of workpieces. The crawler is made of high-strength alloy steel, which has good wear resistance and load-bearing capacity. The movement speed of the crawler can be adjusted according to the process requirements to control the shot blasting time of the workpiece in the chamber, thereby ensuring the shot blasting effect.

The shot blasting device is the power source of the shot blasting process, which is usually composed of an impeller, a blade, a directional sleeve, a distributor, and a drive motor. The drive motor drives the impeller to rotate at high speed, and the shot particles are fed into the impeller through the shot feeding system. Under the action of centrifugal force, the shot particles are accelerated by the blades and thrown out at a high speed (usually 60-80 m/s) through the directional sleeve and distributor. The directional sleeve can adjust the direction of the shot flow to ensure that the shot particles accurately hit the surface of the workpiece. The number and layout of the shot blasting devices can be designed according to the size and shape of the workpiece and the requirements of the shot blasting process. Some large-scale continuous type metal crawler shot blasting machines are equipped with multiple shot blasting devices around the shot blasting chamber to achieve multi-angle and all-round shot blasting of the workpiece.

The shot recycling system is an important part to ensure the continuous operation of the equipment and reduce the consumption of shot particles. It is usually composed of a screw conveyor, a bucket elevator, a separator, and a shot storage bin. After the shot particles hit the surface of the workpiece, they fall into the bottom of the shot blasting chamber together with the impurities such as rust and oxide scale. The screw conveyor transports these mixtures to the bucket elevator, which lifts them to the separator. The separator uses the principle of gravity and wind force to separate the qualified shot particles from the impurities. The qualified shot particles are sent to the shot storage bin for recycling, while the impurities are discharged to the waste bin. The separator has high separation efficiency, which can ensure the purity of the recycled shot particles and avoid the impact of impurities on the shot blasting effect. The dust removal system is used to collect the dust and harmful gases generated during the shot blasting process, which is usually composed of a dust collector, a fan, and a dust pipeline. The dust collector adopts filter bags or cyclone separation technology to effectively capture the dust particles in the air, and the purified air is discharged into the atmosphere, which meets the environmental protection requirements. The electrical control system is the "brain" of the equipment, which is composed of a PLC controller, a touch screen, sensors, and actuators. The operator can set the process parameters (such as crawler speed, shot blasting time, shot flow rate, etc.) through the touch screen, and the PLC controller controls the operation of each part of the equipment according to the set parameters. The sensors are used to detect the operating status of the equipment (such as the level of shot particles, the temperature of the motor, the pressure of the dust removal system, etc.), and once an abnormality is detected, the system will automatically alarm and stop the machine to ensure the safety of the equipment and the operator.

The working principle of the Continuous Type Metal Crawler Shot Blasting Machine is as follows: First, the operator places the workpiece on the metal crawler at the feeding port of the equipment. The crawler drives the workpiece to enter the shot blasting chamber at a uniform speed. When the workpiece enters the chamber, the shot blasting device starts to work, and the high-speed shot particles are thrown out to hit the surface of the workpiece, removing the impurities such as rust and oxide scale on the surface. During the transportation process of the crawler, the workpiece is continuously turned over and moved, so that all surfaces of the workpiece can be uniformly blasted. After the shot blasting is completed, the crawler transports the workpiece to the discharge port, and the operator takes out the workpiece. At the same time, the shot recycling system starts to work, separating and recycling the shot particles, and the dust removal system collects and treats the dust generated during the process. The entire process is continuous and automated, which greatly improves the production efficiency.

The Continuous Type Metal Crawler Shot Blasting Machine has many technical advantages. First, it has high production efficiency. The continuous conveying and shot blasting mode avoids the time loss caused by manual feeding and discharging, and can realize the mass production of workpieces. Second, the shot blasting effect is uniform. The multi-angle shot blasting device and the reasonable design of the shot blasting chamber ensure that all surfaces of the workpiece are uniformly hit by shot particles, and the surface roughness of the workpiece after shot blasting is consistent. Third, it has good automation performance. The electrical control system can realize the automatic control of the entire shot blasting process, and the operator only needs to set the process parameters and monitor the operating status of the equipment, which reduces the labor intensity of the operator. Fourth, it has strong adaptability. It can handle workpieces of different materials (such as carbon steel, alloy steel, cast iron, aluminum alloy, etc.) and different shapes (such as cylindrical, square, irregular, etc.), and the process parameters can be adjusted according to the requirements of different workpieces. Fifth, it is environmentally friendly and energy-saving. The shot recycling system can reduce the consumption of shot particles, and the dust removal system can effectively control the emission of dust and harmful gases, meeting the national environmental protection standards. In addition, the equipment adopts high-efficiency motors and energy-saving technologies, which reduces energy consumption.

The application scope of the Continuous Type Metal Crawler Shot Blasting Machine is very wide, covering many industries such as automotive manufacturing, aerospace, machinery manufacturing, hardware processing, casting and forging, and construction. In the automotive manufacturing industry, it is used for the surface treatment of auto parts such as engine blocks, cylinder heads, crankshafts, connecting rods, and gearboxes. The shot blasting process can remove the oxide scale and burrs generated during the casting and forging process of the parts, and improve the surface quality of the parts, which is conducive to the subsequent assembly and coating processes. In the aerospace industry, it is used for the surface treatment of aerospace components such as aircraft engine blades, landing gear parts, and structural parts. The shot blasting process can improve the fatigue strength of the components, ensuring the safety and reliability of the aircraft during flight. In the machinery manufacturing industry, it is used for the surface treatment of various mechanical parts such as bearings, gears, and shafts. The shot blasting process can remove the rust and oil stains on the surface of the parts, and enhance the surface roughness, which is conducive to the improvement of the wear resistance and service life of the parts. In the casting and forging industry, it is used for the surface cleaning of castings and forgings, which can remove the oxide scale, sand, and burrs on the surface of the workpieces, improving the surface quality of the workpieces and reducing the subsequent processing workload. In the construction industry, it is used for the surface treatment of steel structures such as steel plates, profiles, and bolts. The shot blasting process can remove the rust and oil stains on the surface of the steel structures, and improve the adhesion of the coating, ensuring the corrosion resistance and service life of the steel structures.

The maintenance and maintenance of the Continuous Type Metal Crawler Shot Blasting Machine are very important to ensure the normal operation of the equipment, extend its service life, and ensure the shot blasting effect. The daily maintenance mainly includes the following aspects: First, check the wear of the key components. The blade, directional sleeve, distributor, crawler, and other components in the shot blasting device are easily worn due to the impact of shot particles. They should be checked regularly (usually once a week). If the wear is serious, they should be replaced in time to avoid affecting the shot blasting effect and the normal operation of the equipment. Second, check the shot recycling system. Regularly check the operation of the screw conveyor, bucket elevator, and separator, and clean the impurities in the separator and waste bin to ensure the smooth operation of the shot recycling. At the same time, check the level of shot particles in the shot storage bin, and add shot particles in time when the level is too low. Third, maintain the dust removal system. Regularly clean the filter bags in the dust collector (usually once a month) to ensure the dust removal effect. Check the fan and dust pipeline for air leakage, and repair it in time if there is air leakage. Fourth, maintain the electrical control system. Regularly check the connection of the electrical components, clean the dust on the PLC controller and touch screen, and ensure the stable operation of the electrical system. Fifth, lubricate the moving parts. Regularly add lubricating oil to the bearings, gears, chains, and other moving parts of the equipment to reduce friction and wear and extend the service life of the parts. In addition, the equipment should be thoroughly inspected and maintained after long-term operation (usually once a year), including disassembling the shot blasting chamber, checking the wear of the inner wall, replacing the wear-resistant lining, and overhauling the drive motor and other key components.

In conclusion, the Continuous Type Metal Crawler Shot Blasting Machine is a high-efficiency, automated, and multi-functional surface treatment equipment. Its unique continuous operation mode and metal crawler conveying system make it suitable for mass production of small and medium-sized workpieces. With the continuous advancement of technology, this type of equipment will be more intelligent, environmentally friendly, and efficient, and will play a more important role in the manufacturing and processing industries. When using the equipment, it is necessary to strictly abide by the operating procedures, do a good job in daily maintenance and maintenance, so as to ensure the normal operation of the equipment and the stability of the shot blasting effect.