Method for operating injection insert molding and auxiliary device thereof

Abstract

The invention discloses a method for operating injection insert molding and an auxiliary device thereof. The operating method comprises the steps of molding a metal part, positioning the metal part and injection insert molding, wherein, in the step of positioning the metal part, after the metal part is molded, every metal part which is cut according to the quantity required by a shaped product is positioned at locating columns of two main arms of the auxiliary device by a punch hole at a material strap of the metal part by an assembling device to ensure that the metal part is positioned and clamped; subsequently, the auxiliary device which is provided with the well-positioned metal part is sent to a moulding chamber for positioning by a transmission device; and in the step of the injection insert molding, finial injection molding is carried out on the metal part which is clamped and positioned at the auxiliary and is sent into the moulding chamber, and then the material strap is removed, so that a high-quality product which is molded by an auxiliary method can be finished.

Description

Technical field [0001] The invention discloses an injection molding operation method and an auxiliary device thereof, in particular to an operation method for clamping and positioning a metal piece in the injection molding (Insert molding) by means of an auxiliary device for molding. Background technique [0002] At present, the connector industry basically adopts two manufacturing methods for the assembly of metal parts and plastic parts, that is, insertion method and injection molding method. Set the appropriate position, and then apply pressure on the tail of the metal part to press the metal part and combine it with the plastic. This is generally suitable for connectors with larger volume or simpler structure; while the injection molding method is to insert The metal parts are placed in the predetermined position in the cavity of the plastic mold and then positioned, and then molded together with the plastic parts to achieve the effect of integral molding. This is more s...

AI Technical Summary

Problems solved by technology

[0004] However, in automatic feeding molding, since the long metal parts are continuously formed first, and then cut and separated, please refer to Figure 7, which requires a certain distance between every two similar formed products To facilitate forming and cutting, then in the design stamping process of the same metal parts, a certain distance must be set between each predetermined number of metal parts as a partition fit, so that part of the metal parts between the distances will be lost due to waste. When the product becomes waste, the smaller the product to be formed, the more raw materials it wastes. This is not conducive to reducing costs in today's era of high raw materials, which is undoubtedly a major defect; moreover, the smaller the product The more precise the manufacturing is, and the smaller the metal parts used, when feeding in a double-sided belt, this requires that the metal parts on both sides be transported at the same speed (automatic feeding of metal parts can be divided into single-side material Belt feed and double-sided tape feed), so more tape must be left on the side of the metal part; and when the metal parts used are small, this situation becomes difficult to control, especially in large The two rows of metal parts in mass production are easy to be misplaced due to inconsistent delivery speeds, and the formed products are small, and it is not easy to be found after misalignment, so batch waste is inevitable

[0005] As for the non-automatic molding method, because it is directly placed into the mold cavity by hand for positioning, its operation speed is naturally slow, which is extremely unfavorable for improving productivity today. The speed is even slower, so it is possible that the temperature in the mold cavity will decrease due to the longer time of putting it in, which will affect the quality of the product

[0006] From the above, it can be seen that both the automatic feeding molding method and the non-automatic feeding molding method have deficiencies and defects, which need to be further improved and perfected.

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