Floating pin self-locking device for tunnel core-pulling mechanism

Abstract

The invention discloses a floating pin self-locking device for a tunnel core-pulling mechanism. The floating pin self-locking device comprises a device body, and a slide base is arranged in the device body and provided with a medium; the two sides of the medium are provided with a first floating pin and a second floating pin, and one end of the medium is connected with a driving mechanism; the slide base is fixedly connected with a tunnel long needle which is located at the end far away from the driving mechanism. The floating pin self-locking device is applied to the core-pulling mechanism which has the self-locking function in first core pulling in complex motion, core pulling is performed through an oil cylinder, and an inductor releases signals to control motion, and therefore motion of the whole mechanism is steady and orderly to avoid disorder; meanwhile, the self-locking device is simple and easy to operate, a traditional old backhoe mechanism is not needed, the investment cost is greatly reduced, and the motion structure is simplified; in addition, connection of all parts for cooperating motion is strict, no unnecessary torque loss exists, and the production efficiency is improved to a great extent.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a floating pin self-locking device for a tunnel core-pulling mechanism. Background technique [0002] In daily life and industrial production, there are more and more plastic parts. According to the performance requirements and various assembly and installation process requirements, there are multiple superimposed and staggered tunnel core-pulling mechanisms around the plastic parts. There is no shortage of such bolt-type mechanisms with long core-pulling mechanisms that have to pass through multiple structures at the same time. The movement sequence of this mechanism has strict requirements, and in batch injection molding production, it will cause backlash due to the effect of injection pressure. The traditional pin-type core-pulling mechanism is prone to confusion in the movement sequence, damage to other parts of the mold, backlash of the injection pressure, and damage to the pl...

AI Technical Summary

Problems solved by technology

There is no lack of such a plug-type mechanism with a long core-pulling mechanism that must pass through multiple structures at the same time.

The traditional pin-type core-pulling mechanism is prone to confusion in the movement sequence, damage to other parts of the mold, backlash of the injection pressure, and damage to the plastic product. In the existing technology, a new set of backhoe mechanism is often chosen to offset the injection pressure. , which increases the complexity of the mechanism and the difficulty of controlling the motion sequence

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