Method for manufacturing ultra-thin type touch switch

Abstract

The invention discloses a method for manufacturing an ultra-thin type touch switch. The product manufacturing procedures include that PI film (or a thin plate), a silica gel button, a PI top film raw material and a hardware raw material are fed for raw material inspection; then bottom film, face film, a cavity, an A / B PIN are molded in a punching mode; the e-plating subcontractor is carried out on the A / B PIN; primary hot-press bonding of the bottom film, the A / B PIN and the face film, secondary hot-press bonding of the bottom film, the A / B PIN and the face film, metal elastic sheet implantation, top film covering, third-time hot-press bonding, cutting molding, product detection and braiding packaging are carried out. The method has the advantages that the process is simple, the device occupation space is small, the production steps are few, and the quality is easily managed and controlled.

Description

technical field [0001] The invention relates to the technical field of electrical switches, in particular to a method for manufacturing an ultra-thin tact switch. Background technique [0002] The existing tact switch technology is injection molding, the main raw material is plastic raw material (PA66 / PA66 plus glass fiber / PA4T / PA6T / PA9T / LCP, etc.) High-temperature extrusion injection into the forming mold, cooling and forming, the product forming cycle is long, there are many production links, the control is cumbersome, and the quality abnormalities emerge in endlessly. Has the following prominent disadvantages: [0003] 1. The manufacturing cost is high. Purchase plastic raw materials for baking, injection molding, and cleaning. The operation cycle is long, takes up a lot of space, requires a lot of equipment, and invests a lot of money. For example: a. It needs to occupy a large storage space to place injection molding equipment; b. It needs to be equipped with professi...

AI Technical Summary

Problems solved by technology

[0003] 1. The manufacturing cost is high, the purchase of plastic raw materials for baking, injection molding, and cleaning, the operation cycle is long, takes up a large space, requires more equipment, and invests a lot of money

For example: a. It needs to occupy a large storage space to place injection molding equipment; b. It needs to be equipped with professional equipment operation and maintenance technicians; c. It needs to increase the proportioning equipment of plastic raw materials (for matching toner and color masterbatch); d. Add crushing equipment to deal with the residual plastic nozzle material after injection molding; e. The storage of plastic nozzle materials requires storage space; f. The back end needs to increase cleaning equipment to avoid the intrusion of dust, and materials, equipment, and personnel maintenance all take up a lot of time resource

[0004] 2. Long production cycle, many production processes and control steps

[0005] 3. The size of the switch is large. The traditional injection molding process is limited to injection molding equipment, mold precision, and product yield. The product size of the tact switch has always been large. The products are becoming more and more precise, smaller and smaller, and occupy less space. However, in terms of quality control, due to more production steps, the production yield of light touch switches with small volume and ultra-thin products is still not optimistic.

[0006] 4. The dustproof and waterproof effects are unstable, and the plastic raw materials need to be melted again. Injection molding switch base, due to uncertain factors such as injection molding parameters and equipment stability, it is easy to cause obvious mold lines on the base or weak adhesion to metal terminals. , resulting in product cracks or gaps, dust and water vapor are relatively easy to infiltrate, resulting in functional loss of switch products, directly affecting the use of end products

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