Thread removing mechanism of injection mold

Abstract

The invention discloses a thread removing mechanism of an injection mold. The thread removing mechanism of the injection mold comprises a slide block capable of moving back and forth when the mold isopened and closed, a core rod stretching into a mold cavity penetrates through the slide block, and the end part of the core rod is provided with a threaded part which is inserted into the mold cavityto form a threaded hole. The thread removing mechanism of the injection mold further comprises a driving device capable of driving the core rod to rotate. Moreover, an elastic component capable of being compressed or stretched when the slide block moves backwards and pushing the core rod to move backwards when the core rod rotates is arranged between the slide block and the core rod. The thread removing mechanism of the injection mold is provided to overcome that defects that a thread removing mechanism is complex and cannot be commonly used under the condition of a small mold size.

Description

【Technical Field】 [0001] The present invention relates to the field of manufacturing, especially the field of injection molding technology, and in particular to an injection mold threading mechanism. 【Background technique】 [0002] When the internal thread is made in the injection molding process, the core of the molded threaded hole needs to be fixed in the injection molded model. When the model is fixed to a solid state, the core is extracted with a threading mechanism to form an internal thread in the model Threaded holes. [0003] When the model is unthreaded, the core is rotated in the direction of the loosening of the thread. At the same time, it is also necessary to push the device along the central axis of the thread to move away from the model, so as to rotate and move the core to make the core Loosen from the model and move it out. This usually requires a device to rotate the core and a device to move the core outside the mold. The prior art discloses that the core can b...

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Problems solved by technology

[0003] When the model is unthreaded, the core is rotated in the direction of loosening the thread. At the same time, it is necessary to push the device along the central axis of the thread to move away from the model, so as to rotate and move the core to make the core Loosen and move out from the model, usually need to install the device that core is rotated and the device that core is moved outside mold like this, prior art discloses to realize that core is rotated and moved by linkage mechanical structure, but because The mold structure is complex, resulting in high design cost and high design difficulty. In the existing technology, the core is moved out manually, and the structure is more complicated or the steps are more complicated.

Since there are many mechanical structures to realize the rotation and movement of the core, it is difficult to realize when the mold structure itself is relatively complex, especially when the mold size is relatively small, it may even cause the model to fail to design the unthreaded structure, and eventually the mold cannot Realize mold opening

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