CN201514875U - Injection molding keystoke and die producing same - Google Patents
Injection molding keystoke and die producing same Download PDFInfo
- Publication number
- CN201514875U CN201514875U CN2009202063194U CN200920206319U CN201514875U CN 201514875 U CN201514875 U CN 201514875U CN 2009202063194 U CN2009202063194 U CN 2009202063194U CN 200920206319 U CN200920206319 U CN 200920206319U CN 201514875 U CN201514875 U CN 201514875U
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- China
- Prior art keywords
- button
- injection moulding
- reference column
- die
- thimble
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- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
An injection molding keystoke comprises at least one button, a frame connected with the button through a reset rib at the bottom part of the button, and at least two positioning columns; one end of each positioning column is connected with the frame, and the other end is free; and the free ends of the positioning columns adopt convex structures. The free ends of the positioning columns of the injection molding keystoke adopt convex structures, so that the heights of the positioning column are more accurate through the design scheme.
Description
Technical field
The utility model relates to a kind of electronic product button, the mould that particularly relates to a kind of injection moulding button and produce this injection moulding button.
Background technology
Existing electronic product button has various ways, and the duplex button of the simply connected button of a button, two buttons and the multi-joint button of a plurality of buttons are arranged.These buttons generally comprise the framework that at least two reference columns, at least one button and the muscle that resets bottom button link to each other with button.Described reference column distance between the touch-switch in hold button and the electronic product in product.
In the prior art, the free end of Chang Yinwei reference column in the button production process, produce burr and the physical length that makes reference column than design height height, cause the spacing of button and touch-switch to become big.After such button was assembled on the electronic product, if button is bigger slightly than design pitch with the actual pitch of touch-switch, user's pressing button that may need to put forth one's strength could trigger touch-switch; If differing greatly, the actual pitch of button and touch-switch and design pitch just might cause keys deactivation.
Be illustrated in figure 1 as the electronic product profile that injection moulding button 1 is housed in the prior art.Electronic product comprises injection moulding button 1, housing 3, printed circuit board (PCB) 4 and is installed in touch-switch 2 on the printed circuit board (PCB) 4.Wherein, injection moulding button 1 also comprises framework (not shown) and the reference column 14 that button 10, the muscle 12 that resets by button 10 bottoms link to each other with button 10.One end of reference column 14 is connected with described framework, and it is spacing between housing 3 and printed circuit board (PCB) 4 that this end is that the location pillar 31 with on the housing 3 of hollow cooperates injection moulding button 1.The other end of reference column 14 is a free end.When injection moulding button 1 was installed in the electronic product, the free end of reference column 14 also can be by screw on printed circuit board (PCB) 4.The purpose that reference column 14 is set is the distance of hold button 10 and touch-switch 2.Behind user's pressing button 10, button 10 contacts with touch-switch 2, reaches the purpose of operation electronic product.Behind user's release button 10, under the acting in conjunction of the reseting elasticity of reset muscle 12 and touch-switch 2, button 10 is got back to original position, and this moment, button 10 just separated with touch-switch 2.
Yet there is following technical problem in prior art: because the free end of reference column 14 is planes, so reference column 14 can burr occur at free end usually in injection moulding process.Please, be depicted as the profile of the mould 20 of reference column 14 in the production drawing 1 referring to Fig. 2.Mould 20 comprises back die 22, thimble 24, pin 26 and preceding die 28.The top of thimble 24 is planar design, has the gap because the mismachining tolerance of the hole of back die 22 and thimble 24 and wearing and tearing can cause between back die 22 and the thimble 24.Therefore, reference column 14 produces burr easily vertically on its C surface in injection moulding process.The appearance of burr makes the actual height of reference column bigger than design height H, after injection moulding button 1 is installed on the electronic product, button 10 is bigger than designed distance with the actual range of touch-switch 2, therefore will cause button insensitive, if the excessive situation that also can cause keys deactivation of described actual range.
Summary of the invention
Shortcoming at injection moulding button existence in the prior art, the utility model main purpose provides a kind of injection moulding button, can accurately determine the reference column height of injection moulding button, in injection moulding process, produce burr and cause that button is installed on the electronic product problem of the ineffective or keys deactivation of back button thereby solve the injection moulding button.
The technical scheme that the utility model provides is as follows:
A kind of injection moulding button comprises at least one button; The housing that the muscle that resets bottom described button links to each other with button; And at least two reference columns, an end of described reference column is connected with described housing, and the other end is a free end, and the free end of described reference column is a convex structure.
Preferably, the end that is connected with described framework of described reference column is a hollow.
Preferably, the described muscle that resets is bending and is symmetricly set in the both sides of button bottom.
Preferably, described convex structure is cylindrical, and its bottom surface diameter is less than the bottom surface diameter of reference column.
Simultaneously, the utility model also provides a kind of mould of production injection moulding button, die, a thimble, a pin and a preceding die after described mould comprises one, described thimble can move in the die of described back, pin and preceding die design for integral type, forward and backward die is combined during injection moulding, and the top design of described thimble has a groove, and the convex structure of this groove and described reference column is complementary.
Preferably, the junction of described pin and preceding die is a chamfer design.
Preferably, described groove is cylindrical and be integrally formed.
The utility model is by to the convex design of injection moulding button reference column, thereby guarantees the height of reference column, has the problem of the ineffective or keys deactivation of button after avoiding button to install.
Description of drawings
Fig. 1 is the electronic product profile that the injection moulding button is housed in the prior art;
Fig. 2 is the die profile of injection moulding button reference column in the production drawing 1;
Fig. 3 is the structure chart of button in the utility model; And
Fig. 4 is the die profile of button reference column in the production drawing 3.
Embodiment
The following example is to further explanation of the present utility model and explanation, and the utility model is not constituted any limitation.
For solving the problem that occurs in the above-mentioned prior art, the utility model has been done following structural improvement to the injection moulding button.Please referring to Fig. 3, in the present embodiment, the injection moulding button comprises button 30, the muscle 32 that resets, reference column 34 and framework 36.Button 30 is connected with framework 36 by the muscle 32 that resets of bottom.The muscle 32 that resets is the both sides that bending and rotation are symmetricly set in button 30 bottoms.In other embodiments, the bar number of the muscle 32 that resets can be many, as long as the muscle 32 that will reset during production is arranged on button 30 bottoms uniformly.The free end of reference column 34 is designed to convex structure 342, and the shape of convex structure 342 and reference column 34 is cylindrical, and the bottom surface radius R 1 (please refer to Fig. 4) of convex structure 342 is littler than the bottom surface radius R 2 of reference column 34.The mould of production reference column 34 as shown in Figure 4.Mould 40 comprises back die 42, thimble 44, pin 46 and preceding die 48 in Fig. 4.In the present embodiment, the top of thimble 44 is provided with a groove 442, and groove 442 is complementary with convex structure 342, groove 442 also cylindrical.
The top groove 442 of thimble 44 is integrated, therefore reference column 34 is in injection moulding process, no matter back die 42 and thimble 44 self have or not mismachining tolerance or wearing and tearing, only understand axial generation burr, and burr can not occur on the A surface on the B surface of reference column 34.Therefore, the absolute altitude H of reference column 34 can not change.After the injection moulding button of producing like this was installed on the electronic product, button 30 was exactly a designed distance with the actual range of touch-switch 2, the insensitive situation of button can not occur.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (10)
1. injection moulding button comprises:
At least one button;
The framework that the muscle that resets bottom described button links to each other with button; And
At least two reference columns, an end of described reference column is connected with described framework, and the other end is a free end, it is characterized in that, and the free end of described reference column is a convex structure.
2. injection moulding button according to claim 1 is characterized in that, the end that described reference column is connected with described framework is a hollow.
3. injection moulding button according to claim 1 is characterized in that, the described muscle that resets is bending.
4. injection moulding button according to claim 3 is characterized in that, the described muscle that resets is symmetricly set in the both sides of button bottom.
5. injection moulding button according to claim 1 is characterized in that described convex structure is cylindrical.
6. injection moulding button according to claim 1 or 5 is characterized in that the bottom surface diameter of described convex structure is less than the bottom surface diameter of described reference column.
7. mould of making the described reference column of claim 1, die, a thimble, a pin and a preceding die after described mould comprises one, described thimble can move in the die of described back, pin and preceding die design for integral type, forward and backward die is combined during injection moulding, it is characterized in that the top design of described thimble has a groove, the convex structure of this groove and described reference column is complementary.
8. mould according to claim 7 is characterized in that, the junction of described pin and preceding die is a chamfer design.
9. mould according to claim 7 is characterized in that described groove is cylindrical.
10. according to claim 7 or 9 described moulds, it is characterized in that described groove is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202063194U CN201514875U (en) | 2009-10-16 | 2009-10-16 | Injection molding keystoke and die producing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202063194U CN201514875U (en) | 2009-10-16 | 2009-10-16 | Injection molding keystoke and die producing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514875U true CN201514875U (en) | 2010-06-23 |
Family
ID=42486286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202063194U Expired - Fee Related CN201514875U (en) | 2009-10-16 | 2009-10-16 | Injection molding keystoke and die producing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201514875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825728A (en) * | 2012-09-14 | 2012-12-19 | 晟扬精密模具（昆山）有限公司 | Positioning column structure suitable for injection moulding |
-
2009
- 2009-10-16 CN CN2009202063194U patent/CN201514875U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825728A (en) * | 2012-09-14 | 2012-12-19 | 晟扬精密模具（昆山）有限公司 | Positioning column structure suitable for injection moulding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20151016 |
|
| EXPY | Termination of patent right or utility model |