Cylinder Shoulder Grinding Machine
The grinding of seamless gas cylinder shoulders primarily refers to the secondary processing of gas cylinder shoulders with quality defects after the gas cylinder mouth finishing process.
Currently, there are two main methods for producing seamless gas cylinders. One involves spinning the ends of seamless steel pipes. The other method uses a hydraulic press to process square steel blocks through two stages: punching and drawing (commonly referred to as "punching and drawing cylinders"), followed by spinning one end.
In existing technology, regardless of the sealing method employed, quality defects often occur on the shoulder of the gas cylinder during the hot sealing processing stage. To eliminate defects such as oxide scale, folding, scratches, dents, ripples, and other imperfections produced during the sealing process of seamless gas cylinders, and to ensure that the outer surface quality of the cylinder shoulder reaches an optimal state and meets the requirements of the final painting process, the traditional approach has been manual grinding of defective areas on the outer surface of the cylinder shoulder, performed point by point and area by area. Given that the shoulder of the bottle body is hemispherical, it is necessary to ensure as smooth a transition as possible during grinding. This makes the grinding process challenging, resulting in high labor intensity for workers, low efficiency, and harsh working conditions.
Gas cylinders are classified as pressure vessels, and safety supervision mandates that each gas cylinder must have a unique identification number (steel grade) for traceability purposes. The steel grade of the gas cylinder is typically printed on the shoulder of the gas cylinder using an automatic steel grade printer. However, due to the relatively thick oxide scale on the shoulder of the gas cylinder after the sealing process, even after cleaning by a shot blasting machine, the surface of the shoulder remains uneven. This unevenness affects the printing quality of the rolling-type automatic steel grade printer. Consequently, gas cylinder manufacturers generally resort to manual grinding before printing the steel grade, which is both time-consuming and labor-intensive, with significant human factor influence.
Qingdao Youhao Casting Machinery Co., Ltd. has developed a cylinder shoulder grinding machine and a cylinder shoulder regrinding machine to address these issues for gas cylinder manufacturers. After processing by the cylinder shoulder regrinding machine, the surface of the cylinder becomes smooth, and the steel grade printed by the automatic steel grade printer becomes clearer.
1. The grinding machine for the shoulder of the gas cylinder adopts a horizontal layout, facilitating integration into the gas cylinder assembly line.
2. The grinding machine for gas cylinder shoulders is user-friendly and easy to operate.
3. The grinding machine for cylinder shoulders is highly efficient and reduces labor costs.
4. The steel grades printed by the steel grade printer exhibit improved clarity.
