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Box body and cover plate and manufacturing process thereof

A manufacturing process and cover technology, which is applied to the manufacturing process of the box body and the cover plate and the field of the box body and the cover plate manufactured by the process, can solve the problems of high production cost, many processes, and many wastes, and achieves an increase in the area. , The effect of saving process

Active Publication Date: 2014-08-13
QINGDAO HAIER MOLDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that, using the above-mentioned existing manufacturing process to manufacture the box body and the back cover plate, not only there are many waste materials, but also there are many processes, thus causing the unfavorable situation of high production cost and low efficiency

Method used

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  • Box body and cover plate and manufacturing process thereof
  • Box body and cover plate and manufacturing process thereof
  • Box body and cover plate and manufacturing process thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0035] The specific embodiments of the present invention will be described in detail below with reference to the drawings.

[0036] In this embodiment, a case and a cover plate of a drum-type washing machine are taken as an example for description. The box body is made of thin steel plate, and the back of the box body has an opening for maintenance. The cover plate is installed at the opening of the box body to cover the opening. Except for the manufacturing process, the box body and the cover plate are similar to the prior art and will not be repeated here. The manufacturing process of the box opening and the cover part related to the present invention will be described below.

[0037] Since the cover plate needs to be covered at the opening of the box body, the cover plate overlaps a part of the periphery of the opening of the box body. Therefore, in the prior art, as described in the background art, usually, the box body and the cover plate are formed of different steel plate...

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Abstract

The invention provides a process for manufacturing a box body and a cover plate as well as the box body and cover plate manufactured by the manufacturing process. The box body is provided with an opening (12'), the cover plate (11) is arranged at the opening (12') of the box body. The manufacturing process includes: a stretching working procedure, namely stretching processing is carried out on a plate (1) used for forming the box body, so as to form a sunk part (2) larger than the opening (12'); a blanking working procedure, namely blanking processing is carried out on the sunk part (2) of the plate (1), so as to separate the cover plate (11); and a levelling working procedure, namely the rest part (21b) of the sunk part (2) on the plates (1) is levelled, so as to form an opening (12') which is coincident with the periphery of the cover plate (11). Thus the box body and cover plate can be simultaneously processed on one plate, not only waste material produced when processing the opening is reasonably utilized, but also two processing working procedures are combined, so that working procedure is saved.

Description

Technical field [0001] The invention relates to a manufacturing process of a box body and a cover plate and a box body and a cover plate manufactured by the process. The box body is provided with an opening, and the cover plate is installed at the opening of the box body for covering The opening. Background technique [0002] The back of the drum-type washing machine is usually provided with an opening for maintenance, that is, a maintenance hole, and a back cover is covered on the maintenance hole. The back cover can be removed during maintenance, and the back cover can be covered on the maintenance hole during daily use. Taking into account the needs of transportation and use, the back cover must meet the "knapsack" test, "anti-water injection" test, etc., and be easy to install. [0003] In the prior art, the cabinet and the back cover of this washing machine are processed separately. That is, a box is made of a plate, and repair holes or other holes are first punched to redu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D35/00D06F39/12D06F39/14
Inventor 米永东郭小春余永刚孙洪起
Owner QINGDAO HAIER MOLDS
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