Method for packaging square annular body

Abstract

The invention discloses a method for packaging a square annular body. The method comprises the following steps that (a) a packaging bag with an upper opening and a lower opening is prepared, the upperopening of the packaging bag is provided with an upper elastic band in a penetrated mode, the lower opening of the packaging bag is provided with a lower elastic band in a penetrated mode, and the packaging bag shrinks from the middle part to the directions of the upper opening and the lower opening; (b) the packaging bag sleeves outside the annular body to be packaged with a rectangular cross section, an upper inner ring edge and an upper outer ring edge are arranged on the upper surface of the annular body, and a lower inner ring edge and a lower outer ring edge are arranged on the lower surface of the annular body; and (c) the upper elastic band of the upper opening of the packaging bag sleeves the inner side wall of the lower part of the upper inner ring edge of the annular body, thelower opening of the packaging bag is lifted upward from the lower part of an annular inner opening of the annular body and unfolded annularly towards the circumference, the lower opening of the packaging bag bypasses the upper surface, the outer side wall and the lower outer ring edge of the annular body, and the lower elastic band is finally located on the lower surface of the annular body. Themethod can quickly package the square annular body and has high work efficiency, packaging is tight, no gap is left, and the waterproof safety of the package is improved.

Description

technical field [0001] The invention relates to a packaging method, in particular to a packaging method for a square ring body. Background technique [0002] Square ring body refers to a ring body with a rectangular cross section. From a geometric point of view, it can be considered as a three-dimensional body formed by a rectangle rotating around a circle. An upper inner ring ridge, an upper outer ring edge, a lower inner ring edge and a lower outer ring edge are formed. Large and small conventional bearings, turntables and other shapes are all square rings. After the production and treatment of bearings, turntables, etc., they need to be packaged. Nowadays, it is generally wrapped manually with tape, which is not only time-consuming and laborious, but also has winding gaps, which are easy to enter water, etc., and the sealing safety is not ideal. . Contents of the invention [0003] The purpose of the present invention is to provide a packaging method for a square ann...

AI Technical Summary

Problems solved by technology

After the production and treatment of bearings, turntables, etc., they need to be packaged. Nowadays, it is generally wrapped manually with tape, which is not only time-consuming and laborious, but also has winding gaps, which are easy to enter water, etc., and the sealing safety is not ideal.

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