Continuous die structure for square washers

Abstract

The invention relates to the technical field of dies and discloses a continuous die structure for square washers. The continuous die structure is characterized in that an upper die plate is sequentially connected with upper backing plates, fixed plates, stripping pads and stripping plates through guide posts. The fixed plates and the stripping pads are spaced. A middle hole stamping die, a pressure corner stamping die and a nail stamping die are sequentially disposed between the upper die plate and a lower die plate. The middle hole stamping die is used for stamping a middle hole of a square washer. The pressure corner stamping die is used for stamping two face pressure corners of the middle hole of the square washer. The nail stamping die is used for stamping a stamp nail of the square washer. The middle hole stamping die comprises a middle hole finish stamping male die disposed at the lower end of the upper die plate and a middle hole finish stamping female die which is disposed on a cavity plate and which corresponds to the middle hole finish stamping male die. The pressure corner stamping die is disposed on the cavity plate and provided with tilt angles. The nail stamping die comprises a nail stamping female die disposed at the lower ends of the stripping plates and a nail stamping male die which is disposed on the cavity plate and which corresponds to the nail stamping female die. The continuous die structure for square washers has the advantages that stripping is easier, blanks are convenient to remove, and bending deformation occurs rarely.

Description

technical field [0001] The invention relates to the technical field of molds, and more specifically relates to a square washer continuous mold structure. Background technique [0002] Square washer is one of the hardware accessories of electro-acoustic speakers. Figure 1a , Figure 1b Shown is a typical square washer product, the part is SPHC with a material thickness of 3.0. The key part of the part is the punching nail, and the pressure R angle on both sides of the middle hole, and the middle hole requires a high degree of smoothness and precision. In the prior art, this type of product is mainly produced by a single-process mold, and the steps are divided into three processes: blanking-punching-pulling. During production, the efficiency is relatively slow, many machines are required, and workers are not easy to operate. Safety. As the demand for square washer products gradually increases, in order to meet the continuous improvement of production efficiency, continuous...

AI Technical Summary

Problems solved by technology

However, in continuous die production, the strip cannot be turned over, and the other R angle can only be pressed from the back, which greatly increases the difficulty of unloading; 2. When punching nails, due to the large impact force, the product is prone to bending Deformation; and when cutting and separating the product at the end, it is not easy to discharge the product with an ordinary thimble

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