Cup body processing method

Abstract

The invention discloses a cup body processing method. The method includes the steps for a first cup body middle piece of an opening to be formed, the opening is trimmed according to the given size, and an opening forming blank is formed; then, the opening of the opening forming blank is inwards coiled to be round to form an opening coiled body which is marked as a second cup body middle piece; and the opening coiled body is pressed in the axial direction of a cup body, and a containing cavity in the opening coiled body is eliminated. According to the basic principle of the cup body processing method, the container opening is internally turned and pressed flatly so as to eliminate the opening containing cavity, so that dirt cannot be accumulated in the container opening.

Description

technical field [0001] The invention relates to a cup body processing method. Background technique [0002] Cups made of metal are commonly used in kitchen appliances. It should be understood that in the technical field of kitchen appliances, cups and jars have the same source, the same substantial structure, and basically the same manufacturing process. For example, an electric kettle is a kind of kitchen appliance, which can be understood as a cup structure as a whole, or as a tank structure. Therefore, this type of structure has a cylinder wall and a lower end sealed by the bottom. Collectively referred to as the cup body. [0003] Limited by the existing manufacturing process, the matching R angle between the bottom of the cup body and the cup wall is relatively large. The reason is that because the R angle at the bottom of the container is too small, the existing technology usually cannot be formed at one time. In order to produce a container with a bottom R angle tha...

AI Technical Summary

Problems solved by technology

[0005] 1. The use of multiple stretching processes and the need to switch multiple stations, the production process is too cumbersome, the processing cycle is long, and the production efficiency is low

[0006] 2. Excessive production operations are likely to produce more unqualified products, and the scrap rate is high. It is understandable that the stretching process itself is a process that is prone to produce defective products, such as prone to cracking, or excessive local internal stress, and easily damaged

[0007] 3. Occupies a lot of large equipment, and invests more molds and personnel, resulting in high production costs

[0013] 1. Relying on the rotation of the workpiece to realize its round processing, it is impossible to process special-shaped containers such as squares, and the functionality is poor

[0014] 2. The processing is cumbersome, time-consuming, low in efficiency, operators are easy to contact with high-speed running equipment, and the safety is poor

[0015] 3. The mouth of the container is deflected and deformed during processing, and the processing surface is easy to form wrinkles and obvious indentations, or the rounding processing is insufficient, and the gap is large

It should be understood that, for example, stainless steel containers, the substrate used is often relatively thin, and it is difficult to generate the amount of metal flow required for initiation. Therefore, metal flow-based mouth forming methods cannot be realized in many applications

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