The decoring machine for castings adopts the pneumatic impact method to perform core sand casting on aluminum alloy and gray iron engine cylinder blocks, steel covers, exhaust pipes, pump bodies, valve bodies, pipe fittings, shell parts, etc. It is a device for vibrating and striking to remove the core sand in the inner cavity of the product.
The early casting core removal machine in China was a product imitated by the former Soviet Union in the 1960s. It has a relatively simple structure and performance. It is mainly used to remove the inner cavity core sand of the engine cylinder casting, and a small pneumatic impactor is used to clean the inner cavity of the aluminum alloy casting. The equipment for core sand is also put into use. In the 1990s, foreign products were introduced, using high-speed and high-frequency pneumatic decoring hammers, with functions such as vibration and sand shaking, workpiece flipping and sand dumping, and continuous automatic loading and unloading on-line. Read More: Casting Wikipedia
The composition and working principle of casting decoring machine equipment
Vibrating sand shakeout machine for castings and decoring machine for castings is composed of decoring hammer impact, workpiece clamping, shaking and flipping, vibration isolation, noise reduction, dust removal, electrical control and other units. Its working principle is to use impact vibration to generate impact acceleration and Cavity resonance generates peeling stress at the interface of sand layer or two-phase body to achieve the effect of sand removal process.
Form and type
It can be roughly divided into the following forms:
- Swing vibrating decoring machine: During the working process, the workpiece needs to be continuously swayed to pour out the loose core sand to improve the effect of the sand removal process. There are one-dimensional and two-dimensional movement modes.
- Vibration + vibration decoring machine: For workpieces with complex inner cavities, large-amplitude vibration is used to remove the loose core sand.
- Multi-station vibrating decoring machine: used for small workpieces, manual loading and unloading work.
- Pass-through automatic vibrating decoring machine production line: Automatic and continuous work, suitable for large batches and single products, according to different process requirements, there are multiple decoring hammer heads, multi-directional impact and other forms.