Insert needle and insert mold

Abstract

The invention relates to an insert needle and an insert mold. The insert needle comprises an outer fixed cylinder, an inner positioning needle, a telescopic needle and a telescopic needle cylinder, wherein the outer fixed cylinder, the inner positioning needle, the telescopic needle and the telescopic needle cylinder sequentially nested in the axial direction; one ends of the outer fixed cylinderand the inner positioning needle are in contact with a fixed plate; the inner positioning needle is slidably sleeved with the outer fixed cylinder; the telescopic needle is sleeved with the telescopicneedle cylinder; one end of the telescopic needle extends into the outer fixed cylinder, and the other end of the telescopic needle extends out of the telescopic needle cylinder; an elastic piece isarranged at the part, between the outer fixed cylinder and the inner positioning needle, of the telescopic needle; and a magnetic piece is arranged at one end, away from the outer fixed cylinder, of the telescopic needle cylinder. According to the insert needle and the insert mold, the elastic piece is arranged, and when the mold is opened, the telescopic needle is ejected under the action of elastic force, so that an insert at the narrow position space is accurately placed on the telescopic needle; and the insert is firmly attracted by the magnetic piece to be prevented from falling off in the moving process, the structure is simple, and the use is convenient.

Description

technical field [0001] The invention relates to the field of insert injection molds, in particular to an insert needle and an insert mold. Background technique [0002] Injection molding of metal inserts, the metal inserts are pre-fixed in the appropriate position in the mold, and then injected into the plastic molding, after the mold is opened, the inserts are tightly wrapped by the cooled and solidified plastics and buried in the product to obtain a threaded ring, electrode, etc. Insert products. This method is often used in the manufacture of automotive parts, such as tailgate inner panels, spoilers, etc. [0003] The insert structure set on the inner panel of the tailgate of the car, such as a nut, is fixed with an insert pin on the mold during insert injection molding, and the mechanical gripper needs to accurately place the insert on the insert pin, so that the insert Fixed, then injected into plastic molding. However, the shape and structure of the tailgate are dif...

AI Technical Summary

Problems solved by technology

However, the shape and structure of the tailgate are different, and some insert structures have a narrow space, while the existing insert pins are only a straight bar without any other structures, such as Figure 5 As shown, the insert cannot be accurately placed on the pin in a narrow space, and the insert and the pin are not fixed firmly. There is a risk that the insert will be dropped and the mold will be crushed, and the molded product will lack the insert, resulting in the product being scrapped.

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