CN201117485Y

CN201117485Y - Press key diaphragm made fixture structure

Info

Publication number: CN201117485Y
Application number: CNU2007201293452U
Authority: CN
Inventors: 高瑞三
Original assignee: CHUNG TING RUBBER INDUSTRIAL Co Ltd
Current assignee: CHUNG TING RUBBER INDUSTRIAL Co Ltd
Priority date: 2007-09-07
Filing date: 2007-09-07
Publication date: 2008-09-17
Anticipated expiration: 2017-09-07

Abstract

The structure of a jig made from a key membrane sheet is that each manufacture procedure jig of each key top layer embedded at a key membrane silica gel conductive substrate is made from aluminium alloy, which ensures that the preset gap of each bearing recess of each jig for exact module casting is embedded with a silica gel lamina which has certain thickness and proper rigidity and can be put into the corresponding key top layer, so as to prevent the surface of each top layer from being scraped and scratched during the process of bearing, moving and composing the corresponding recess of the jig to show the bright key appearance of an electronic product.

Description

The button diaphragm is made the structure of tool

Technical field

The utility model is the fixture structure of making about the button diaphragm of chimeric default hard material button top layer on a kind of silastic material conductive substrate; When referring to button diaphragm finished product that the hard resin class button top layer of bonding predetermined number shape on the elastic conduction substrate of silastic material makes especially, that uses in its each processing procedure respectively makes tool and can prevent that the surface of each button top layer is scratched or scratch, can the manifesting the operating level function of more beautiful and improve the quality of button diaphragm and reduce fraction defective.

Background technology

Commonly use in as mobile phone, PDA, e-dictionary, remote controller, home telephone, palmtop computer, timer, computor-keyboard, still to the button diaphragm A of electronic products such as industrial operation keyboard, be with the numeric keypad A1 of full slice system silastic and the formation of interplantation conductive material (shown in scheming directly), can be easy to cooperate the electronic products appearance design, also can simplify part and use and assemble simplification, and reducing cost of rationalizing; More have, different unique senses of touch and excellent physical characteristics and function, especially in the environment of variations in temperature big (temperature resistant range-100 ℃～315 ℃), use, the excellent effect that does not almost have the restriction in life-span and material to change, and low noise lead touch effect (with mechanical type metal spring leaf button relatively) and extensively be used.

Yet the silastic button is manifesting the character and graphic color effect that uses function by touching on the surface layer, because of the surface tension of silastic low, has the adhesiveness of being difficult for again, it is special than being generally to use in the allotment of printing colorant, and this button diaphragm A is small article and small size painted (only each key by touching top layer), and only be suitable for the screen painting C (with reference to shown in Figure 2) of fit tool B, and for monochrome needs the long-time heating baking and curing after being coated with, causing one key end face A2 polychrome is being coated with and is not comparatively conforming to benefit, make the color that manifests dislike monotone variation little slightly, or be difficult to showy give expression to the button function the meaning that should show, have only gloss or the tone of strengthening colorant, and the effect of the button collocation of colour of different colorants in the hope of showing; Person more, for the performance button arround showy performance, remove the delineation literal or scheme to form the permeable type attitude and this button end face A1 is being coated with dried solid colorant, to reach inner ad hoc light source transmission with more special gimmick (as: laser equipment D engraving is with reference to shown in Figure 3); But above formation, because of the painted top layer of this button is the position that directly presses for pointing, use can make dyed layer tone dimness for a long time, even dim gradually and peel off; If use showy different color silastic material to make, then the suitable height of cost; And, though printing surface sense of touch and soft slightly pressure sense of touch are more special impression, but having second section pressure puts forth effort absolutely empty sensation and (is pressing for bottom surface electric conductor E contact for first section, second section for pushing the soft compression of end face), non-on earth is that the general hard material that uses is by touching the having peace of mind that layer pressure sense of touch psychology is really come.

So each does the button top layer F of solid hard to use resinae transparent material ejection formation, on the bonding closely again silastic conductive substrate G pedestal G1, and makes the finished product of making button diaphragm A in response to giving birth to.After resinae transparent material ejection formation is made each button top layer F, promptly give the default color character and graphic of printing (can print) at inner face or surface, relend each button top layer F of numerical value punch press punching separation and material road, and dislocation is made tool H1 in different processing procedures, H2, ... (because of each button top layer F die cavity spacing, arrangement position etc. are to arrange according to the design of ejection shaping die, with the spacing of each button actual installation on the electronic product might not be identical; Button because of the different styles of each electronic product kind designs again, the intermediate process tool that often has the resinae of different size, shape and quantity to make is equipped with bearing for button top layer F and silastic conductive substrate G, transfer, the button diaphragm A (shown in Fig. 4,5) that makes such as bonding; Yet, at each button top layer F ejection formation with after finishing various character and graphic printings, the punching separation dislocation is gone into each tray or transfer or tool H1 such as bonding, H2, ... during corresponding depression K (each depression is that corresponding each keypress function has different shapes and quantity with appearance design), often because of each tool H1, H2, ... depression K wall edge or wall and each button top layer F outer surface F1 of inserting touch and scratch or scratch take place, cause and produce defective products or waste product and existing its disappearance; More have, high-temperature baking often makes each tool H1 that resinae is made in processing procedure, H2, ... a little distortion takes place, of a specified duration cause each button top layer F and can not insert depression K completely, or put to enter fully, and cause defective products or waste product such as the synthetic whole or displacement of button top layer F and silastic conductive substrate G, must discard old tool and be equipped with new tool use in addition, form waste and increase manufacturing cost.

Summary of the invention

It is a kind of through high-temperature baking and indeformable case diaphragm is made the structure of tool that the purpose of this utility model is to provide, and then improve the synthetic quality of button diaphragm and reduce manufacturing cost.

The technical solution of the utility model is:

A kind of button diaphragm is made the structure of tool, each processing procedure tool of each button top layer of being embedded on the button diaphragm is made with aluminium alloy, and each default gap of bearing depression die casting processing of each tool, the silastic thin layer that is embedded a predetermined thickness and suitable hardness can be inserted the corresponding key top layer.

Because the utility model adopts above-mentioned structure, in the time of in the depression that causes each button top layer to be inserted to be harmonious, avoid each button topsheet surface that scratch and scratch take place, reach tool through high-temperature baking and indeformable, and then improve the synthetic quality of button diaphragm and reduce the purpose of manufacturing cost.

Description of drawings

Purpose of the present invention and its feature will further describe in detail with relevant accompanying drawing in following description.

Fig. 1 is the simple schematic appearance of button diaphragm.

Fig. 2 is a screen painting rough schematic of commonly using full slice system silastic button diaphragm.

Fig. 3 is a laser carved rough schematic of commonly using full slice system silastic button diaphragm.

Fig. 4 commonly uses the button top layer to insert the rough schematic of making in the tool.

Fig. 5 is a rough schematic of commonly using button diaphragm transposition tool synthetic job.

Fig. 6 is the rough schematic that each button top layer of the utility model is inserted transfer tool depression.

Fig. 7 is the rough schematic that each button top layer of Fig. 6 is inserted synthetic tool depression.

Fig. 8 is the rough schematic that another button top layer of the utility model is inserted transfer tool depression.

Fig. 9 is the rough schematic that each button top layer of Fig. 8 is inserted synthetic tool depression.

Figure 10 be the utility model again a button top layer insert the rough schematic of transfer tool depression.

Figure 11 is the rough schematic that each button top layer of Figure 10 is inserted synthetic tool depression.

Embodiment

With reference to Fig. 6; shown in 7; the utility model is with each processing procedure tool 21a of each button top layer 1; 22a makes with aluminium alloy; and each tool 21a; the bearing depression 31a of 22a; the default gap of die casting processing of 32a internal perisporium precision; make the silastic thin layer 41a that uniformly sprays predetermined thickness and hardness (according to the processing mode of button top layer 1 outer surface of bearing and decide); 42a is easy to insert each button top layer 1; make each button top layer and outer surface 11 that a neither too hard, nor too soft silastic thin layer 41a be arranged; 42a buffer protection, and each tool depression 31a that can not rub; scratch or scratch take place in the wall edge face of 32a.

With reference to Fig. 8; shown in 9; be that another embodiment of the utility model is each the processing procedure tool 21b with each button top layer 1; 22b makes with aluminium alloy; and each tool 21b; the depression 31b of each button top layer 1 of the bearing of 22b; the default gap of die casting processing of 32b internal perisporium precision; make the silastic thin layer 41b that is bumped into the predetermined thickness cast in advance and hardness (according to the processing mode of button top layer 1 outer surface of bearing and decide); 42b is easy to insert each button top layer 1; make each button top layer and outer surface 11 a neither too hard, nor too soft silastic thin layer 41b is arranged; 42b buffer protection, and each tool depression 31b that can not rub; scratch or scratch take place in the wall edge face of 32b.

With reference to Figure 10; shown in 11; be the utility model again an embodiment be each processing procedure tool 21c with each button top layer 1; 22c makes with aluminium alloy; and each tool 21c; the bearing depression 31c of 22c; the default gap of die casting processing of 32c internal perisporium precision; make mould 5 projections 51 of a correspondence stretch into each depression 31c; 32c has a default space; can inject the silastic thin layer 41c of a predetermined thickness and hardness (according to the processing mode of button top layer 1 outer surface of bearing and decide); 42c is easy to insert each button top layer 1; make the outer surface 11 of each button top layer 1 that a neither too hard, nor too soft silastic thin layer 41c be arranged; 42c buffer protection, and each tool depression 31c that can not rub; scratch or scratch take place in the wall edge face of 32c.

Claims

1. a button diaphragm is made the structure of tool, each processing procedure tool of each button top layer of being embedded on the button diaphragm is made with aluminium alloy, and each default gap of bearing depression die casting processing of each tool, the silastic thin layer that is embedded a predetermined thickness and suitable hardness can be inserted the corresponding key top layer.

2. button diaphragm according to claim 1 is made the structure of tool; it is characterized in that; wherein each bearing depression internal perisporium of each each processing procedure tool of button top layer of button diaphragm uniformly sprays the silastic thin layer of predetermined thickness and hardness, and each button top layer of buffer protection is inserted in the depression that is harmonious.

3. button diaphragm according to claim 1 is made the structure of tool; it is characterized in that; the default gap of each bearing depression internal perisporium of each each processing procedure tool of button top layer of button diaphragm wherein; make to be bumped into a silastic thin layer of mold casting forming predetermined thickness and hardness in advance, each button top layer of buffer protection is inserted in the depression that is harmonious.

4. button diaphragm according to claim 1 is made the structure of tool; it is characterized in that; the default gap of each bearing depression internal perisporium of each each processing procedure tool of button top layer of button diaphragm wherein; make involutory the inserting of mould projection of a correspondence that one default space be arranged in each depression; can inject the silastic thin layer of a predetermined thickness and hardness, each button top layer of buffer protection is inserted in the depression that is harmonious.