Core ejecting device capable of automatically adjusting strength for core making machine

Abstract

The invention relates to the technical field of core making machines, and discloses a core ejecting device capable of automatically adjusting strength for a core making machine. The core ejecting device comprises a core box, a pneumatic rod is fixedly connected to the interior of the core box, a buffer spring is fixedly connected to the side, away from the interior of the core box, of the pneumatic rod, and a connecting block is slidably connected to the interior of a swing claw; and a tension spring is fixedly connected to the side, close to the swing claw, of the connecting block. Accordingto the core ejecting device capable of automatically adjusting the strength for the core making machine, an ejector rod slides to drive a pull rope to move, the pull rope drives the connecting block to descend, the connecting block descends to be connected with a lantern ring in a sleeving manner, and when a sliding rod slides, the sliding rod drives a gear to move, the gear rotates under the action of a gear groove, the gear drives a pull claw to rotate, the pull claw drives the swing claw to swing, the swing claw drives the connecting block to swing, the connecting block drives the lantern ring to swing, and the lantern ring and an elastic rope are matched for use, so that the effect of automatically adjusting the strength according to the radius of a sand core is achieved.

Description

technical field [0001] The invention relates to the technical field of core making machines, in particular to a core ejecting device for a core making machine capable of automatically adjusting force. Background technique [0002] The core making machine is the collective name of the core shooting machine and the core shell machine. It is the equipment that uses the hot core box process to make the coated sand shell core. Its working process is completed by sand filling and compaction at the same time. Medium hardening, lightening labor intensity, flexible and light operation, easy to master, electric heating, automatic temperature control, easy to keep the working place clean, creating conditions for the mechanization and automation of the core making process. [0003] The existing core making machine needs to manually take out the sand core after the manufacturing is completed, but when producing the sand core with a small cross-section, due to the insufficient strength of...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a core ejector device for a core making machine that can automatically adjust the force, which can automatically eject the sand core and automatically adjust the force according to the radius of the sand core, and has a wide range of applications. The advantages of high quality and high processing efficiency solve the problem that when producing sand cores with small cross-sections, due to insufficient strength of the slender sand cores, it is easy to cause sand cores to break when taking cores and affect processing efficiency.

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