The shell of the shot blasting chamber is solid, durable and rigid. The interior of the chamber is protected by 10mm thick rolled Mn13 high wear-resistant protective plate, which has good protection and long service life, more than 18000 hours; Cleaning room the cleaning room is a welded structure of steel plate and section steel, with a solid and durable shell, good rigidity, wide space, and lined with 6 mm cast chromium guard plate; The sealing chamber is of steel plate welding structure. The chamber shell is solid, durable and rigid. It is sealed with multi-layer wear-resistant rubber curtain. The bottom of the inlet and outlet is equipped with high elastic nylon brush row and 6 mm wear-resistant rubber plate, which is convenient for replacement and maintenance. The sealing effect is good, and it can effectively prevent bullets from flying out and dust from escaping.

The roller table passing shot blasting machine adopts centrifugal linear blade shot blasting machine (American Penn company shot blasting technology), which has the advantages of high shot blasting efficiency (shot blasting ratio can reach 16kg/min · kW), fast speed (up to 83 M / s), good shot blasting effect (shot blasting belt is relatively wide and centralized, and shot blasting is uniform), high safety (installation of limited device, which can ensure that the equipment cannot be started during maintenance), and low noise. After the detection of dynamic balance instrument, The balance torque is between 12 ~ 15N · mm (national standard 18.6n · mm); The dovetail groove of the unit disc impeller is processed by precision milling machine, and the material is carburized and quenched; The blade is made of high chromium special wear-resistant cast iron. The surface hardness after heat treatment is hrc60-65, which has high wear resistance and service life. The weight difference of each shot blaster blade is ≤ 5g; The directional sleeve adopts a fully enclosed dial, which can easily adjust the ejection angle and direction. It is made of high chromium special wear-resistant cast iron. The surface hardness after heat treatment is hrc60-65, and the service life is long.

The workpiece conveying system of the roller pass through shot blasting machine is composed of input roller table, shot blasting cleaning room roller table, purging sealing room roller table and output roller table. It adopts segmented drive. Each segment of drive can operate independently or synchronously. The drive motor adopts stepless frequency conversion speed regulation, and the driving torque will not be reduced due to the reduction of speed. The conveying speed is 0.5 ~ 4 m / min; The roller shafts of the input, output, roll sweeping and sealing chamber roller table are welded by high-quality carbon steel seamless steel pipes and quenched and tempered shaft heads. The shaft heads and the roller body are processed integrally after welding, which not only ensures the bearing load ≥ 2.0 T / m, but also ensures the coaxiality; The roller table in the shot blasting room is equipped with a special wear-resistant sheath that can be easily replaced for protection. After heat treatment, the hardness reaches HRC60 and the service life is long.In front of the entrance of the shot blasting room, there are pressure roller devices and photoelectric height measuring devices. Steel with different widths presses different numbers of pressure rollers. According to the signal of the upper limit switch of the pressure roller and the counting of the pulse wheel, the opening number (only for small-size steel) and opening time of the fan valve of the shot supply gate are controlled, so as to effectively control the shot and reduce the phenomenon of empty throwing.

Jiutong adopts the method of one-stage rolling and one-stage purging to clean the steel plate. High elasticity and Φ 3mm composite nylon material, moderate hardness, large elasticity, good wear resistance, and service life of more than 3 years; The bristles are fixed on the semi nylon block, and the semi nylon is fixed on the roller brush shaft (welded by the high-quality carbon steel seamless steel pipe and the quenched and tempered shaft head) with bolts. The bristles are firmly fixed, and there is no loss of bristles in the work. The brush is fast, the structure is advanced, and the replacement is convenient; The whole spiral shaft of the shot receiving screw is processed as a whole after welding, and the spiral blade is made of 16Mn material. The pitch and outer circle dimensions are very accurate, which improves the service life of the screw. The roller brush and the shot receiving screw are driven by shaft mounted reducer, with light structure and stable and reliable operation. A small amount of bullets remain on the workpiece after rolling, and a blowpipe is set behind the rolling brush. The residual bullets move under the rolling brush under the blowing of the blowpipe, and then are swept into the shot receiving screw by the rolling brush. The high-pressure gas of the blowing pipe is supplied by a special high-pressure fan, which is installed in the pit below the blowing room. The air outlet and the blowing pipe are connected by hoses.

The pneumatic shot gate of the roller passing shot blasting machine is a device that controls the shot blasting amount by controlling the air cylinder switch. It has high reliability and avoids the motor burning, shot blasting device blocking, shot empty throwing and personal injury caused by the lax closing of the common shot blasting control valve, reaching the international advanced level. The required shot blasting quantity can be obtained by adjusting the bolts or valve plates on the shot controller.