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Manufacture mehtod of elastic metal sheet for thin button

A technology of metal shrapnel and forming method, which is applied in the direction of electrical components, electrical switches, circuits, etc., to achieve the effect of reducing manufacturing cost, simple manufacturing process, and reducing mold cost

Inactive Publication Date: 2004-05-05
ICHIA TECH
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Problems solved by technology

[0019] The main purpose of the present invention is to overcome the defects of the existing method of manufacturing and forming the metal domes of keys, and to provide a new method of manufacturing and molding the metal domes of thin keys, so that it can provide a method of punching and punching the domes simultaneously by a single mold. Manufacturing and molding methods for steps such as manufacturing and combining with the glue layer, which can solve the practical problem of the existing button shrapnel manufacturing and molding methods

Method used

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  • Manufacture mehtod of elastic metal sheet for thin button
  • Manufacture mehtod of elastic metal sheet for thin button
  • Manufacture mehtod of elastic metal sheet for thin button

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Embodiment Construction

[0042] The specific method, structure, features and effects of the method for manufacturing and forming thin keypad metal elastic sheets according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0043] The method for manufacturing the metal elastic sheet of the thin keypad according to the present invention is mainly to form a plurality of mold cavities on the lower mold of the punch press, and each mold cavity is arranged according to the key contact position on the keypad circuit board, and an adhesive layer is provided under the lower mold , and when the shrapnel is punched out from the lower die of the punch press, the shrapnel is pushed out from the mold cavity through a push-out step, and at the same time pushed out to the surface of the adhesive layer, so that it is bonded to the surface of the adhesive layer, so that the same mold can be used in the In the same process, the punching of t...

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Abstract

The forming method for metal spring sheet of thin-type key is mainly characterized by that several die cavities are made according to a specially-designed arrangement form on lower die to stamping machine, and a rubber layer is set under the lower die, and when the metal sheet material is placed on the lower die, the metal spring sheet is impacted by punching head in first time, then the metal spring sheet can be pushed out of every die cavity by means of pushing bar in second time, and the metal spring sheet can be combined with lower rubber layer, at the same time every spring sheet also is respectively correspondent to every contact, so that when the rubber layer is stuck on the circuit board, the installation of key spring sheet also is implemented simultaneously.

Description

technical field [0001] The invention relates to a method for forming parts of instruments in the field of instruments. Background technique [0002] Generally, keys used in mobile phones, in order to meet the increasingly compact design of mobile phones, are also required to have thin, light and small features, such as Image 6 Shown is the control device on the existing mobile phone, which is mainly provided with a plurality of metal domes 91 and a button surface layer 90 in sequence on the surface of a circuit board 80, wherein: [0003] The surface of the circuit board 80 is formed with a plurality of button contacts 81 arranged in a matrix, each button contact 81 is in an open state under normal conditions, and the aforementioned metal shrapnel 91 are respectively arranged on it, and the metal shrapnel 91 is in an arc shape. The cross-section, under normal conditions, is still in an open state with the key contact 81 , when the metal dome 91 is pressed and contacts the k...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H13/70
Inventor 黄清池
Owner ICHIA TECH
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