Injection mold rotation non-destructive thread removal mechanism

Abstract

Injection mold rotates without damaging thread removal mechanism, including mold template, mold core is installed on the template, there is plastic product on the mold core, plastic product is threaded, hydraulic motor is installed on one side of the template, the hydraulic motor is connected to the threaded core through the keyway, The head of the threaded core matches the thread of the plastic product, and is characterized in that a bracket is installed on the template, a threaded sleeve is installed in the bracket, and an external thread is formed on the tail of the threaded core, and the external thread matches the threaded sleeve. In this solution, when the hydraulic motor drives the threaded core to rotate and pull the core, the reaction force for the threaded core to withdraw is borne by the external thread and the threaded sleeve, which reduces the extrusion force of the threaded core when it exits the thread of the plastic product, and makes the thread of the plastic product No damage, improve yield and save cost. Moreover, the structure is simple, the processing is easy, and it is suitable for all plastic products with threads, and has a wide range of applications and significant positive effects.

Description

technical field [0001] The invention relates to a thread ejection mechanism of an injection mold, in particular to a rotating non-destructive thread ejection mechanism, which belongs to the field of plastic molds. Background technique [0002] Using injection molds to produce plastic products, especially products with threads (mainly referring to internal threads), such as a car engine sink, with interfaces on the sink, and internal threads (holes) in the interfaces. Therefore, Before the product (sink) is demoulded and ejected, the internal thread needs to be core-pulled and demoulded. In the prior art, a hydraulic motor is generally used to directly connect the threaded core to rotate the core for thread removal in the prior art, so the thread teeth are easily damaged during core pulling, resulting in scrapped products. Especially when there are many thread teeth, the thread teeth of the product directly bear the reaction force of the thread core withdrawal during the pro...

AI Technical Summary

Problems solved by technology

In the prior art, a hydraulic motor is generally used to directly connect the threaded core to rotate the core, so the thread teeth are easily damaged when the core is pulled, causing the product to be scrapped.

Especially when there are many thread teeth, the thread teeth of the product directly bear the reaction force of the thread core withdrawal during the process of the hydraulic motor driving the thread core to pull out (exit), which is more likely to cause product thread damage, high scrap rate, and increase Cost of production

Images