Bolster and side frame integral core producing method

Abstract

The invention discloses a production method of an integrated core for a bolster and a side frame. The method is used to a process of the integrated core of a cavity in the bolster and the side frame, which is designed as an upper and a lower sand cores, comprising: starting a sand mixing machine to produce a first slice of sand core by sand filling, and hardening the first slice of sand core in a corresponding sand core box; starting the sand mixing machine to produce a second slice of sand core by sand filling, in a state that the second slice of sand core is not hardened, combining the second slice of sand core and the core box thereof with the first slice of sand core and the sand core box thereof to hardening second slice of sand core; drawing of patterns of the integrated core. The integrated core production method of the bolster and the side frame provided in the invention omits operation process such as manual assembly, grinding and the like, adopted by the prior technology, due to the integrated core process, meanwhile, according to the production method, the upper and lower sand cores use a selfbonded manner, without bonding by an adhesive, thus a better bonding effect is achieved.

Description

technical field [0001] The invention relates to the production of truck bolsters and side frames, in particular to a production method for integral cores of bolsters and side frames. Background technique [0002] Bolsters and side frames are important load-bearing parts of trucks, which need to be cast steel and produced by casting. Since the bolster and the side frame have several inner cavities and inner holes, the structure is complex, therefore, during casting, sand cores need to be placed in the mold cavity to form the inner cavity. [0003] At present, the production process of producing bolsters and side frames is the core assembly process. The sand cores that form the inner cavity of the bolster and side frames are divided into multiple parts. Sand cores are brought together to form the inner cavity of the casting. The advantage of this method is that the process is relatively simple and convenient for manual operation. [0004] Please refer to Fig. 1, which shows...

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Problems solved by technology

[0022] Although the above integral core process can solve the quality problems of bolsters and side frames, due to the large volume of the upper and lower sand cores, the production methods such as manual mold removal and manual assembly under the original core assembly process will make the production process very slow. effective and difficult to operate

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