CN109849279A - The key cap mould of ejection device three times - Google Patents
The key cap mould of ejection device three times Download PDFInfo
- Publication number
- CN109849279A CN109849279A CN201910317415.4A CN201910317415A CN109849279A CN 109849279 A CN109849279 A CN 109849279A CN 201910317415 A CN201910317415 A CN 201910317415A CN 109849279 A CN109849279 A CN 109849279A
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- Prior art keywords
- lower mode
- taper pin
- keycap
- runner
- ejection device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a kind of key cap moulds of ejection device three times, belong to computer keyboard accessory preparation technical field, it mainly includes upper cores, lower die Renhe thimble, upper and lower mode forms after combining and is used for the molding model cavity of keycap, and thimble passes through lower mode upward and can eject upward the keycap of forming；Lower mode upper surface has several for being molded the runner of keycap, runner includes sprue and runner in the shape of an " I ", wherein, four ends of runner are separately connected the model cavity, the same end of sprue is connected to, converged between the vertical linkage section of adjacent two runner, and four ends of sprue are respectively connected with adjacent two runner；There is pouring head in communication above the middle part of the vertical linkage section of sprue.The present invention, which can be obtained, obtains higher shaping efficiency under the premise of guaranteeing that quality is stablized.
Description
Technical field
The invention belongs to keyboard of notebook computer technical field more particularly to a kind of manufacture molds of keycap.
Background technique
Keycap is the necessary part of keyboard of notebook computer, and structure is as shown in Fig. 1-2, whole square-shaped shell structure,
In its inner surface tool, there are four interconnecting pieces, i.e. two first connecting portions 101 and two second connecting portions 102, wherein the first connection
There is borehole structure in portion 101.It is directed to the mold layout of keycap design at present, many kinds of, molding disposition cavity does not conform to
Reason leads to one-time formed limited amount, or designs runner confusion to merely promote quantity, and keycap Forming Quality is not
Stablize.In addition, its cooling effect is poor, the batch production of this common computer fittings of keycap, such as die cavity cloth are greatly limited
Office disorder, on mode only merely designed to obtain maximum molding quantity, these disposition cavities it is unreasonable together
When also cause its water route to be unevenly distributed, be usually all die cavity is trapped among to the centre of mode, and cause center for keycap it is molding
Mould part cooling is bad, needs reserved time enough is cooling to restore between each injection molding.In addition, there is also for upper
The special construction for stating keycap is difficult to preferably form mold cavity, and is unable to fast and stable demoulding, bad adaptability, is forming and is taking off
There is larger difficulty when mould, is easy to cause keyboard deformation damaged, and efficiency is relatively low.It can be seen that current keycap manufactures
There are many urgently improved places for mold, to promote the quality stability and production efficiency of keycap injection molding.
Summary of the invention
The purpose of the present invention is to provide a kind of key cap mould of ejection device three times, the keycap mould of the ejection device three times
Tool solves that existing mold cavity layout is unreasonable, the unstable technical problem of Forming Quality.
Technical scheme is as follows:
A kind of key cap mould of ejection device three times, including upper cores, lower die Renhe thimble, upper and lower mode combine rear shape
At the molding model cavity of keycap is used for, thimble passes through lower mode upward and can eject upward the keycap of forming；The lower mode
Upper surface has several for being molded the runners of keycap, and the runner includes sprue and runner in the shape of an " I ",
In, four ends of runner are separately connected the model cavity, connection, remittance between the vertical linkage section of adjacent two runner
Gather in the same end of the sprue, and four ends of sprue are respectively connected with adjacent two runner；Described
There is pouring head in communication above the middle part of the vertical linkage section of sprue.
Beneficial effects of the present invention: the present invention again rationally designs the die cavity distribution of keycap, using in I-shaped
The flow passage structure of type, so that runner easily facilitates the flowing of plastics liquid, shunts, equably flows rationally to lay to die cavity
Into corresponding die cavity, so that the molding keycap quality of corresponding die cavity institute is more reliable and more stable, when not will lead to injection molding, liquid modeling
Expect movement disorder, Forming Quality is unstable.
Detailed description of the invention
Fig. 1 and Fig. 2 is the structural schematic diagram of keycap；
Fig. 3 is schematic structural view of the invention；
Fig. 4 is upper cores structural schematic diagram；
Fig. 5 is to remove upper cores and structural schematic diagram shown in Fig. 3 after jacking part；
Fig. 6 is the bottom view of lower mode；
Fig. 7 is A-A cross-sectional view in Fig. 6；
Fig. 8 is the partial enlarged view at the guide sleeve in Fig. 7；
Fig. 9 schematic structural view of the invention；
Figure 10 is the structural schematic diagram at a rectangular cam in Fig. 9；
Figure 11 is schematic diagram of the keycap of forming at the beginning of jacking；
Figure 12 is the connection schematic diagram of the keycap of one of taper pin and forming；
Figure 13 is the arrangement relation schematic diagram of taper pin, direct selling；
Connection schematic diagram of the Figure 14 between taper pin and mandril；
Connection schematic diagram of the Figure 15 between one of mandril upper end and lower mode；
Figure 16 is schematic diagram when taper pin bottom end is limited by bottom plate；
Figure 17 is the taper pin end view of first connecting portion forming cavity.
Component label instructions: keycap 1, first connecting portion 101, second connecting portion 102, taper pin 2, it is columned raised 201,
Sell 3, thimble 4, mandril 5, first groove 501, lower mode 6, rectangular cam 601, blind hole 602, slot 603, runner 604, master directly to households
Runner 604a, stream chamber 605, the taper pin 2a of the taper pin 2b of first connecting portion forming cavity, second connecting portion forming cavity, bottom plate 7,
Upper cores 8, upper model cavity 801, pouring head 9, guide sleeve 10, main waterway 11, the first water route 12, the second water route 13.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
Present invention will be further explained below with reference to the attached drawings and examples:
The present embodiment provides a kind of key cap moulds of ejection device three times for keycap production, as shown in Fig. 3-5,
Including upper cores 8, lower mode 6 and thimble 4, upper and lower mode forms after combining and is used for the molding model cavity of keycap 1, and thimble 4 is upward
The keycap 1 of forming can be ejected upward across lower mode 6.6 upper surface of lower mode has several for being molded keycap 1
Runner, the runner include sprue 604a and runner in the shape of an " I ", wherein four ends of runner connect respectively
The model cavity is connect, is connected between the vertical linkage section of adjacent two runner, converges at the same of the sprue 604a
A end, and four ends of sprue 604a are respectively connected with adjacent two runner；In the vertical of the sprue 604a
There is pouring head 9 in communication, when injection molding, liquid plastic to the injecting head injects, through sprue above the middle part of linkage section
The middle part of the vertical linkage section of the sprue 604a of 604a is flowed simultaneously towards its both ends, sequentially enters the institute that two sides are arranged symmetrically
Have in model cavity, runner arrangement is succinct, reasonable, avoids tradition to make every effort to molding quantity and designs complicated numerous and disorderly stream
Road leads to the problem of Injection Molding disorder unevenness, so that mold can the more keycap 1 of one-pass molding and each
A 1 Forming Quality of keycap is reliable and stable as far as possible, after 1 forming of keycap, when jacking demoulding, for the first time first by I-shaped runner
The material head of formation ejects, and the keycap of forming 1 is then lifted off mode again, finally realizes being completely separated, take away, entering for keycap 1
Library.
As specific implementation, in order to give full play to cooling effect on the basis of above-mentioned runner layout, to promote cooling speed
Degree is to alleviate recovery interval time when mold work, and as shown in Fig. 5-8, spy is machined with one in lower 6 central interior of mode
A spliced eye, the spliced eye run through the upper and lower surface of lower mode 6 vertically and are used to embeddedly install coaxial with the pouring head 9
The guide sleeve 10 of alignment, round bar to lower 6 lower part of mode for jacking pass through upward guide sleeve 10 and the model cavity formation when not
The upper port for stretching out guide sleeve 10 forms one and circular streams when guide sleeve 10 is embedded in the spliced eye with the inner wall of spliced eye
Chamber 605；It is equipped with a level in parallel therewith through lower mode 6 in the underface of the vertical linkage section of the sprue 604a
Main waterway 11, which, which flows through, described stream chamber 605 and gets around 9 axis position of pouring head.The design is so that water route
It carries out being cooled into possibility on the central axial line of lower mode 6, the type of cooling of this flowing of detouring will not be because of pouring head 9
Presence and interfere, can still design on the central axial line of lower mode 6, greatly promote cooling efficiency.In the specific implementation,
For optimize cooling effect, such as Fig. 3, the front and rear sides inside the lower mode 6 further respectively have one it is parallel with main waterway 11
The first water route 12, the second water route 13, with further overturn traditional water route exist only in mode lean on edge surrounding design, realize
It is uniformly cooling.
Projectedly have as specific embodiment, such as upper surface of Fig. 9-10, the lower mode 6 away from shape convex block；Such as Figure 11
And Figure 13, the mold of the present embodiment further include four taper pins 2, the top of the taper pin 2 from bottom to top passes through lower mode 6 to institute
It states away from shape convex block upper surface, four taper pins 2 are connect being respectively formed with the intersection away from shape convex block upper surface for first
Portion 101 and the molding forming cavity of second connecting portion 102, the taper pin 2 inclined arrangement in the vertical direction, so as to jacking,
Convenient for being separated with 1 fast and stable of keycap of forming when demoulding, improve efficiency, taper pin 2 obliquely is inserted into lower mode 6
And slided in corresponding tilted perforations in lower mode 6 so that taper pin 2 ejection when relative to directly using sell directly to households 3 for, cunning
Act out more reliable and more stable, sliding speed is also easier to control, can greatly improve the production efficiency of keycap 1, stablize keycap 1 at
The precision of type guarantees the Forming Quality of product.
In injection molding, the equal components of taper pin 2 be inserted into the rectangular cam 601 of lower mode 6 and with rectangular cam 601 together shape
At lower mode cavity, then the upper cores with upper cavity are moved down, and then upper and lower mode merges to be formed can go out keycap 1 with injection molding
Master pattern chamber, plastics liquid to runner 604 flow into the model cavity in, be cooled and shaped, obtain keycap 1；Then it has been formed to it
Finish after obtaining keycap 1, taper pin 2 and thimble 4 etc. are together by the ejection of the keycap of forming 1, demoulding, compared with tradition ejection, this reality
The mold of example is applied in demoulding, is not only the vertical jacking of the thimble 4 of direct rod shape, and the inclined taper pin with specific position
2 also assist in jacking demoulding, since its inclined position is arranged, under guiding jacking effect, so that stripping movement is more steady
When controllable, the quickly and reliably jacking demoulding of realization keycap 1.
As specific embodiment, it is used to form two taper pins 2 of 101 forming cavity of first connecting portion and is used to form the second connection
Two taper pins 2 of 102 forming cavity of portion are each to arranging respectively at splayed, so that taper pin 2 more preferably plays a role, uniformly jack keycap
1.Meanwhile in order to which the formation of model cavity is better achieved, for the borehole structure of first connecting portion 101, devise it is special at
Type structure forms 2 top of taper pin of 101 forming cavity of first connecting portion towards away from the side wall on the outside of shape convex block that is, such as Figure 17
With a step, in the middle part of the step surface of the step have one columned raised 201, with described away from shape convex block
101 forming cavity of first connecting portion is formed for the jack top ports of the taper pin 2 insertion, columned raised 201 are located at jack
Aperture at formed can mold the borehole structure of first connecting portion 101 therewith.
Preferably, in implementation process, the bottom end of the taper pin 2 is detachably connected and is formed with the mandril 5 being vertically arranged
One limitation taper pin 2 moves up the stage portion of distance, that is, the mobile limiting section of limitation taper pin 2 is designed, in order to which taper pin 2 is mobile
The position control of demoulding promotes the beneficial effect performance of taper pin 2, it is ensured that keycap 1 is steady in ejection, will not be because of traditional list
One erect mast jacks vertically so that 1 moment of keycap acutely move up caused by it is unstable and uncontrollable, cannot be in stroke accuracy
Preferably controlled.When it is implemented, simplify structure to advanced optimize the effect, particularly, such as Figure 14, in mandril 5
The bottom end side wall of top side wall and the taper pin 2 homogeneously has a groove to ground, so that side where the groove of taper pin 2
Lower part is caught in the groove (first groove 501) of mandril 5 and realizes and be connected, and the side wall of the top end face of mandril 5 and taper pin 2
The stage portion is formed, can simply and effectively limit taper pin 2 moves up distance.Such as Figure 15, in the bottom face of the lower mode 6
The upper blind hole 602 protruded into one for 5 top of mandril, and offered together on the inner sidewall of blind hole 602 for institute
The slot 603 of the insertion of taper pin 2 is stated, the taper pin 2 can be pierced by through the slot 603 to the upper surface away from shape convex block upwards,
So that the distance that stage portion control taper pin 2 moves up makes it participate in being formed more essence to be accurately defined ejection distance
There is an accurate stroke value when jacking when true model cavity with it.
As embodiment, the locations of structures feature of structure and taper pin 2 of the invention based on keycap 1, further to stablize
Keycap 1, such as Figure 13, the thimble 4 is a pair of and is arranged symmetrically between two pairs of taper pins 2 that the top of the thimble 4 is under
And Shangdi extends to the top end face away from shape convex block through lower mode 6, and the top of thimble 4 is towards 601 outside of rectangular cam
There is a L-type step, the inner sidewall of L-type step and the lateral wall of the rectangular cam 601 are linked together to be used on side wall
The molding of 1 inner sidewall of keycap.To stablize keycap 1, convenient for jacking, the present embodiment further includes being vertically arranged upward through lower mode
6 to 601 top end face of rectangular cam direct selling 3,3 apex structures of the direct selling are consistent with 4 apex structure of thimble, the direct selling 3
It is arranged by side where two 101 forming cavities of first connecting portion, and the phase of the inner sidewall of its L-type step and the rectangular cam 601
Lateral wall is answered to be linked together with the molding for 1 inner sidewall of keycap, i.e., above-mentioned L-type step is participating in constituting the molding mould of keycap 1
When type chamber, also there is a stable supporting force to the keycap of forming 1, so that demoulding is more stable.
Particularly, on the basis of above-mentioned all embodiments, as shown in figure 16, the present embodiment further includes being close under lower mode
The bottom plate 7 of end face setting, has the through-hole for passing through but not passing through for the taper pin 2 for the mandril 5, the top on bottom plate 7
2 bottom end of taper pin that 5 top of bar is pierced by its top after the through-hole upwards can connect with through-hole peritreme and cannot pass downwardly through through-hole,
Also it that is, taper pin is only capable of moving in lower mode 6, such as is only capable of realizing the bound of stroke in the movement of above-mentioned blind hole 602
Limitation stops when moving down because of the limitation of bottom plate, i.e. taper pin position is defined, so that taper pin participates in the model to be formed
Chamber size precision is higher.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (10)
1. a kind of key cap mould of ejection device three times, including upper cores, lower die Renhe thimble, upper and lower mode are formed after combining
For the molding model cavity of keycap, thimble passes through lower mode upward and can eject upward the keycap of forming；On the lower mode
Surface has several for being molded the runners of keycap, which is characterized in that the runner include sprue in the shape of an " I " and
Runner, wherein four ends of runner are separately connected the model cavity, the vertical linkage section of adjacent two runner it
Between be connected to and converge at the same end of the sprue, and four ends of sprue are respectively connected with described adjacent two and shunt
Road；There is pouring head in communication above the middle part of the vertical linkage section of the sprue.
2. a kind of key cap mould of ejection device three times according to claim 1, it is characterised in that: in the lower mode center
Inside has a spliced eye, which runs through the upper and lower surface of lower mode and vertically for embeddedly installation and the filling
The guide sleeve of head co-axially align, round bar to the lower mode lower part for jacking pass through guide sleeve and upward in model cavity formation
The upper port of guide sleeve is not stretched out, is formed one with the inner wall of spliced eye when guide sleeve is embedded in the spliced eye and circular is streamed
Chamber；It is equipped with the main waterway that a level runs through lower mode in parallel therewith in the underface of the vertical linkage section of the sprue,
The main waterway streams chamber and gets around pouring head axis position described in flowing through.
3. a kind of key cap mould of ejection device three times according to claim 2, it is characterised in that: inside the lower mode
Front and rear sides further respectively have first water route parallel with main waterway, second water route.
4. a kind of key cap mould of ejection device three times according to claim 1, it is characterised in that: the upper table of the lower mode
Face projectedly has away from shape convex block；
It further include four taper pins, the top of the taper pin from bottom to top passes through lower mode to described away from shape convex block upper surface, and four
A taper pin be respectively formed with the intersection away from shape convex block upper surface it is molding for first connecting portion and second connecting portion
Forming cavity, the taper pin inclined arrangement in the vertical direction.
5. the key cap mould of ejection device three times according to claim 4, which is characterized in that be used to form first connecting portion at
Two taper pins of type chamber and two taper pins for being used to form second connecting portion forming cavity are each to arranging respectively at splayed.
6. the key cap mould of ejection device three times according to claim 4, which is characterized in that formed the first connecting portion at
The taper pin top of type chamber has one towards away from having a step on the side wall on the outside of shape convex block in the middle part of the step surface of the step
A columned protrusion, with it is described away from shape convex block supply the taper pin insertion jack top ports formed the first connecting portion at
Type chamber.
7. the key cap mould of ejection device three times according to claim 4, which is characterized in that the bottom end of the taper pin and vertical
The mandril of setting is detachably connected and is formed the stage portion that a limitation taper pin moves up distance；The top side wall of the mandril and
The bottom end side wall of the taper pin homogeneously has a groove to ground, so that the lower part of side is caught in mandril where the groove of taper pin
It realizes and is connected in groove, and the top end face of mandril and the side wall of taper pin form the stage portion；In the lower mode
The blind hole protruded into one for the mandril top on bottom face, and offered described in one of confession on the inner sidewall of blind hole
The slot of taper pin insertion, the taper pin can be pierced by through the slot to the upper surface away from shape convex block upwards.
8. the key cap mould of ejection device three times according to claim 4, which is characterized in that the thimble is a pair of and is located at
It is arranged symmetrically between two pairs of taper pins, the top of the thimble to lower and Shangdi extends to described away from shape convex block through lower mode
Top end face, and the top of thimble is towards having a L-type step, the inner sidewall of L-type step and institute on the side wall on the outside of rectangular cam
The lateral wall for stating rectangular cam is linked together with the molding for keycap inner sidewall.
9. the key cap mould of ejection device three times according to claim 8, which is characterized in that further include being vertically arranged upward
Through lower mode to the direct selling of rectangular cam top end face, the direct selling apex structure is consistent with the thimble apex structure, this is straight
Pin is by side setting where two first connecting portion forming cavities, and the inner sidewall of its L-type step is corresponding to the rectangular cam outer
Side wall is linked together with the molding for keycap inner sidewall.
10. the key cap mould of ejection device three times according to claim 4, which is characterized in that further include being close under lower mode
The bottom plate of end face setting, has the through-hole for passing through but not passing through for the taper pin for the mandril, the mandril top on bottom plate
Holding the taper pin bottom end on its top after being pierced by the through-hole upwards can connect with through-hole peritreme and cannot pass downwardly through through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317415.4A CN109849279B (en) | 2019-04-19 | 2019-04-19 | Key cap mould of three ejecting drawing of patterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317415.4A CN109849279B (en) | 2019-04-19 | 2019-04-19 | Key cap mould of three ejecting drawing of patterns |
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| Publication Number | Publication Date |
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| CN109849279A true CN109849279A (en) | 2019-06-07 |
| CN109849279B CN109849279B (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910317415.4A Active CN109849279B (en) | 2019-04-19 | 2019-04-19 | Key cap mould of three ejecting drawing of patterns |
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| CN110450369A (en) * | 2019-08-27 | 2019-11-15 | 张丽珠 | A kind of palace column key cap mould |
| CN110936565A (en) * | 2019-12-04 | 2020-03-31 | 苏州亿源精密模具有限公司 | Short taper pin drawing of patterns key cap's mould |
| CN113334692A (en) * | 2021-06-02 | 2021-09-03 | 重庆连成模具有限公司 | Notebook keyboard keycap mold and demolding and ejecting method |
| CN114407292A (en) * | 2022-01-06 | 2022-04-29 | 重庆连成模具有限公司 | Integrative injection structure of multistation of notebook key cap usefulness of moulding plastics |
| CN114770876A (en) * | 2022-01-06 | 2022-07-22 | 重庆连成模具有限公司 | Mold blank ejection connecting mechanism for injection molding of key caps of notebook keyboard |
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