CN103640161A - Precise injection mould of large-frame super-narrow zinc alloy insert of cellphone front shell - Google Patents

Precise injection mould of large-frame super-narrow zinc alloy insert of cellphone front shell Download PDF

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Publication number
CN103640161A
CN103640161A CN201310722839.1A CN201310722839A CN103640161A CN 103640161 A CN103640161 A CN 103640161A CN 201310722839 A CN201310722839 A CN 201310722839A CN 103640161 A CN103640161 A CN 103640161A
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China
Prior art keywords
mould
frame
precise injection
injection mould
inserts
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Application number
CN201310722839.1A
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Chinese (zh)
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CN103640161B (en
Inventor
宋桂云
张建立
王炜
李艳茹
陈晓春
彭龙云
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BEIJING DONGMING XINGYE SCIENCE TECHNOLOGY Co Ltd
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BEIJING DONGMING XINGYE SCIENCE TECHNOLOGY Co Ltd
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Publication of CN103640161A publication Critical patent/CN103640161A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2602Mould construction elements
    • B29C45/2606Guiding or centering means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/27Sprue channels Runner channels or runner nozzles

Abstract

The invention discloses a precise injection mould of a large-frame super-narrow zinc alloy insert of a cellphone front shell. The precise injection mould comprises a front mould core and a rear mould core, wherein the rear mould core is provided with a rear mould module; the middle of the rear mould module is horizontally provided with two runners, and the middle parts of the runners are provided with runner sucking discs; the edge part of the rear mould module is provided with multiple guiding bulges with gradients, and the periphery of the upper part of the rear mould core is respectively provided with a rear mould sliding block. The precise injection mould disclosed by the invention has the advantages that fake rib connection in the middle of the zinc alloy insert is not needed, the size of a circle of inner frame in the middle is not reserved, and the side edge buckling position of a frame of a product is directly formed in a casting manner, so that the product is prevented from deforming in the formation; the structure and technology are simple, the finished product ratio is high, and the cost is low.

Description

The super narrow kirsite inserts precise injection mould of the large frame of handset front case
Technical field
The present invention relates to the injection mold of the large frame of a kind of handset front case, relate in particular to the super narrow kirsite inserts precise injection mould of the large frame of a kind of handset front case.
Background technology
At present, the large frame of handset front case is generally kirsite insert-molding, and plastic material is PC+30GF, and inserts material is kirsite; Product integral body is frame-type, and length direction has super narrow frame; Appearance requirement Vacuum Deposition.
In prior art, in die industry, common preparation method is:
First-selection, kirsite inserts die cast.As shown in Figure 1, for preventing finished product distortion, conventionally first the centre of kirsite inserts 01 is added and does some passive false muscle 02, the monolateral first reserved 0.15mm~0.2mm of a middle circle inside casing size;
Then, by injection molding, the semi-finished product of kirsite inserts 01 are put into injection mould insert-molding, make the semi-finished product that comprise frame 03 as shown in Figure 2;
Afterwards, then process by secondary finish-milling on CNC lathe, the false muscle 02 of centre is removed, be processed into finished product.
At least there is following shortcoming in above-mentioned prior art:
In the middle of when doing kirsite inserts, must add and do some passive false muscle connections, for providing intensity, following process side button bit for the first time guarantees, and the distortion of avoiding injection mo(u)lding after-contraction to cause, for avoiding the follow-up secondary operations of CNC to remove the false injury of tendon and muscle and inside casing, a middle circle inside casing size is monolateral must first be reserved 0.15mm~0.2mm and treat that follow-up secondary operations removes in the lump; There are some potential problems in product: clamping location must be precisely in the follow-up secondary operations of CNC, after add and easily injure product man-hour, after add products formed and yielding in man-hour, thereby cause fraction defective to increase, cause the increase of production cost.
Summary of the invention
The object of this invention is to provide the super narrow kirsite inserts precise injection mould of the large frame of handset front case that a kind of structure and technique are simple, yield rate is high, cost is low.
The object of the invention is to be achieved through the following technical solutions:
The super narrow kirsite inserts precise injection mould of the large frame of handset front case of the present invention, comprise front cavity, rear cavity, described rear cavity is provided with rear mold module, and the middle part of described rear mold module is laterally provided with 1 to 3 runner, and the edge of described rear mold module is provided with a plurality of guide protrusions with gradient.
As seen from the above technical solution provided by the invention, the super narrow kirsite inserts precise injection mould of the large frame of handset front case that the embodiment of the present invention provides, because the middle part of rear mold module is laterally provided with 1 to 3 runner, the edge of rear mold module is provided with a plurality of guide protrusions with gradient, therefore the muscle that can not rehearse in the centre of kirsite inserts connects, a middle circle inside casing size is not done reserved, the side button bit rheo-die-casting moulding of product frame, prevent deformation of products in moulding, structure and technique are simple, yield rate is high, cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of kirsite inserts in prior art;
Fig. 2 is the structural representation of plastic parts and kirsite inserts assembling in prior art;
Fig. 3 is the structural representation of kirsite inserts in the embodiment of the present invention;
Fig. 4 is the structural representation of plastic parts and kirsite inserts assembling in the embodiment of the present invention;
Fig. 5 is the structural representation of runner in the embodiment of the present invention, plastic parts and the assembling of kirsite inserts;
The facade structures schematic diagram of the super narrow kirsite inserts precise injection mould of the large frame of handset front case that Fig. 6 provides for the embodiment of the present invention;
The planar structure schematic diagram of the super narrow kirsite inserts precise injection mould of the large frame of handset front case that Fig. 7 provides for the embodiment of the present invention.
In figure:
1, rear cavity, 2, rear mold module, 3, front cavity, the 4, first slide block, the 5, second slide block, the 6, the 3rd slide block, 7, Four-slider, 8, runner, 9, runner sucker 10, guide protrusions.
The specific embodiment
To be described in further detail the embodiment of the present invention below.
The super narrow kirsite inserts precise injection mould of the large frame of handset front case of the present invention, its preferably the specific embodiment be:
Comprise front cavity, rear cavity, described rear cavity is provided with rear mold module, it is characterized in that, the middle part of described rear mold module is laterally provided with 1 to 3 runner, preferred 2 runners, and the middle part of described runner is provided with runner sucker.
The passage of plastic flow when described runner is the filling plastic product processing on mould, plays the effect of dowel after described runner moulding, can guarantee the flatness of product.After filling plastic is complete, this part can connect together with shape and product of a runner, forms a circular platform at the runner sucker place at runner middle part simultaneously, and runner sucker is in order to facilitate manipulator sucker on injection machine to hold the platform of shaped article.
The edge of described rear mold module is provided with a plurality of guide protrusions with gradient, play the guiding role.
The surrounding on described rear cavity top is respectively equipped with rear mode slider.The rear mode slider of surrounding can slide to surrounding respectively.
The super narrow kirsite inserts precise injection mould of the large frame of handset front case of the present invention, by the design of kirsite inserts precise forming mold, completes one-shot forming and goes out final products, avoids secondary operations, reaches batch production; Reduce or avoid manufacturing procedure problem on deformation after the rear processing of products formed and product; Prevent Product Variant problem in plastic mould injection moulding.
Specific embodiment:
As shown in Figure 3, Figure 4, be to reduce processing problems after products formed, the centre of kirsite inserts 01 muscle that do not rehearse connects, and a middle circle inside casing size is not done reserved, the side button bit rheo-die-casting moulding of product frame 03.
As shown in Fig. 5, Fig. 6, Fig. 7, for preventing deformation of products in moulding, plastic cement injection mould increases the mode that two runners support in the middle of adopting inside casing.
Product, when plastic mould injection moulding, in order to ensure product smooth demoulding when ejecting, reaches automated production, and plastic cement injection mould is made slide block on four sides, ejects front-slider loose core and discharged most of stress at product.
In the present invention, kirsite inserts is not done technique and is connected, and a die casting puts in place, utilizes inserts precise injection mould to solve kirsite and the inconsistent problem of plastic rubber shaping post-shrinkage ratio, and one-shot forming puts in place; Design by inserts precise injection mould structure solves products formed and rear manufacturing procedure problem on deformation; Figure paper size is directly arrived in inserts die casting, does not do reservedly, does not need following process; By the structural design of inserts precise injection mould, solve the problem of this series products mutability, realize single injection-molded and go out product, avoid rear processing and shaping.
Beneficial effect of the present invention:
Changed after the traditional moulding of traditional kirsite inserts the secondary operations way that puts in place, by the design of mould structure, realize one-shot forming and go out final products, can solve the problem on deformation of product in moulding, can reduce the time of follow-up secondary operations again, greatly shorten the production cycle, reduce production costs, the production technology that has fundamentally changed such insert-molding, has promoted technological progress.Enforcement of the present invention Neng Gei enterprise can produce huge economic benefit.
The above; be only the present invention's specific embodiment preferably, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.

Claims (3)

1. the super narrow kirsite inserts precise injection mould of the large frame of handset front case, it is characterized in that, comprise front cavity, rear cavity, described rear cavity is provided with rear mold module, it is characterized in that, the middle part of described rear mold module is laterally provided with 1 to 3 runner, and the edge of described rear mold module is provided with a plurality of guide protrusions with gradient.
2. the super narrow kirsite inserts precise injection mould of the large frame of handset front case according to claim 1, is characterized in that, described rear mold module is laterally provided with 2 runners, and the middle part of described runner is provided with runner sucker.
3. the super narrow kirsite inserts precise injection mould of the large frame of handset front case according to claim 1 and 2, is characterized in that, the surrounding on described rear cavity top is respectively equipped with rear mode slider.
CN201310722839.1A 2013-12-24 2013-12-24 Precise injection mould of large-frame super-narrow zinc alloy insert of cellphone front shell Active CN103640161B (en)

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CN201310722839.1A CN103640161B (en) 2013-12-24 2013-12-24 Precise injection mould of large-frame super-narrow zinc alloy insert of cellphone front shell

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CN201310722839.1A CN103640161B (en) 2013-12-24 2013-12-24 Precise injection mould of large-frame super-narrow zinc alloy insert of cellphone front shell

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104907521A (en) * 2015-04-02 2015-09-16 深圳市长盈精密技术股份有限公司 Mobile phone middle frame manufacturing process
CN105643870A (en) * 2016-01-21 2016-06-08 深圳市信太通讯有限公司 Method for machining metal middle frame of mobile phone

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102179895A (en) * 2011-02-15 2011-09-14 深圳桑菲消费通信有限公司 Intramode insert injection molding method
CN102811264A (en) * 2011-05-30 2012-12-05 李树忠 Mobile phone shell and machining method thereof
CN203040082U (en) * 2013-01-10 2013-07-03 张志才 Frame body hardware intramode injection moulding structure and injection mold thereof
CN203637095U (en) * 2013-12-24 2014-06-11 北京东明兴业科技有限公司 Ultra-narrow zinc alloy insert precision injection mould of large cellphone front shell frame

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102179895A (en) * 2011-02-15 2011-09-14 深圳桑菲消费通信有限公司 Intramode insert injection molding method
CN102811264A (en) * 2011-05-30 2012-12-05 李树忠 Mobile phone shell and machining method thereof
CN203040082U (en) * 2013-01-10 2013-07-03 张志才 Frame body hardware intramode injection moulding structure and injection mold thereof
CN203637095U (en) * 2013-12-24 2014-06-11 北京东明兴业科技有限公司 Ultra-narrow zinc alloy insert precision injection mould of large cellphone front shell frame

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104907521A (en) * 2015-04-02 2015-09-16 深圳市长盈精密技术股份有限公司 Mobile phone middle frame manufacturing process
CN105643870A (en) * 2016-01-21 2016-06-08 深圳市信太通讯有限公司 Method for machining metal middle frame of mobile phone

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