CN109397613A - It can be in high precision in high volume in the method for shell surface forming water proof ring - Google Patents
It can be in high precision in high volume in the method for shell surface forming water proof ring Download PDFInfo
- Publication number
- CN109397613A CN109397613A CN201710700335.8A CN201710700335A CN109397613A CN 109397613 A CN109397613 A CN 109397613A CN 201710700335 A CN201710700335 A CN 201710700335A CN 109397613 A CN109397613 A CN 109397613A
- Authority
- CN
- China
- Prior art keywords
- shell
- mode
- liquid
- injecting glue
- water proof
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 52
- 239000010703 silicon Substances 0.000 claims abstract description 52
- 239000000853 adhesive Substances 0.000 claims abstract description 15
- 230000001070 adhesive effect Effects 0.000 claims abstract description 15
- 239000003292 glue Substances 0.000 claims description 65
- 238000002788 crimping Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 22
- 239000011230 binding agent Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 7
- 239000000499 gel Substances 0.000 description 38
- 238000002347 injection Methods 0.000 description 14
- 239000007924 injection Substances 0.000 description 14
- 238000001746 injection moulding Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2708—Gates
- B29C2045/2709—Gates with a plurality of mould cavity inlets in close proximity
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Switches (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
It is a kind of high-volume to include the following steps: (S1) in the method for shell surface forming water proof ring in high precision, apply one layer of adhesive in the outer surface of shell；(S2), it will be placed in the station for setting mode on the lower die seat with the processed shell of (S1) step, and make to constitute the type chamber for forming water proof ring between the outer surface of shell and the inner surface of mode；(S3), upper flitch and the mode are molded；(S4), fixed measured liquid-state silicon gel in advance is put into trough；(S5), upper die holder and upper flitch are closed up；(S6), upper die holder and lower die holder are heated, makes the temperature of liquid-state silicon gel 120 degree of -150 degree Celsius, is kept for 160-240 seconds.The present invention can double up output；And the accumulated error of mold can be greatly reduced, improve the precision of product.
Description
Technical field
The present invention relates to a kind of injection molding technique, especially one kind can be in high precision in high volume in shell surface forming waterproof
The method of circle.
Background technique
Liquid silica gel with respect to solid high-temperature sulphurated siliastic for, be liquid glue, have good fluidity, vulcanization
Fastly, the characteristics of safety and environmental protection.Liquid-state silicon gel has excellent tearing toughness, resilience, anti-yellowing, thermal stability, heat-resisting
Aging is widely used in making electronic product or be located on the outer surface of electronic product, for sealing with other objects.Example
Such as, the waterproof sealing between the plate terminal adapter shell and terminal body of mobile terminal, heretofore described mobile end
End can be mobile phone, laptop computer, Ipad or PDA etc..In this kind of product, plate terminal adapter shell and terminal body it
Between waterproof sealing usually set a groove on the shell, set an O-ring seal in groove, pass through O-ring seal and move
It being sealed between dynamic terminal body, not only structure is complicated for this sealing structure, and it is at high cost, and also sealing grade is low, is not suitable for
It is used on the high product of waterproofing grade.
In order to improve waterproof sealing grade, reduces plate terminal adapter outer dimension, have tried to using directly in plate end company
Connect the mode of direct injection molding sealing ring on device shell, the injection molding of the liquid-state silicon gel as disclosed in Chinese patent CN105437449A
Method is exactly wherein an example.It is existing to use liquid-state silicon gel straight forming sealing ring directly on connector shell, general use
Liquid-state silicon gel injection forming machine realizes, existing liquid-state silicon gel injection forming machine and the existing basic phase of injection molding machine structure
Together, except that injection molding machine injects in-mold molding, and liquid-state silicon gel by injection tube again after needing to melt plastic grain
Injection (mo(u)lding) machine is low temperature moulding after being injected in mold after liquid-state silicon gel A material and liquid-state silicon gel B material mixing by injection tube.
This liquid-state silicon gel injection forming machine, usually a molding machine set an injection tube, match, (do not have with a width mold
One multiple injection tube of molding machine is matching used to several molds, and the stationary problem mainly between injection tube and mold is bad
Solve), liquid-state silicon gel is injected from a sprue bushing of mold, arranges 1-4 type chamber mostly relative to a sprue bushing in mold,
Therefore it once can only at most produce 1-4 product.With this liquid-state silicon gel injection forming machine come in shell surface forming water proof ring,
It there is shaping machine structure complexity, and action step is more, and when injection will form accumulated error, make to be molded by the Product Precision come
Consistency is poor；Second is that this liquid-state silicon gel injection forming machine low output, can only form 1-4 product every time, adding for product is caused
Work is at high cost.
Therefore, currently, it is necessary to research and develop it is a kind of can high-precision high-volume shell surface forming water proof ring method and
Mold, for manufacturing waterproof case.
Summary of the invention
The purpose of the present invention is in view of the above-mentioned problems, to society provide one kind can high-precision high-volume in shell surface forming
Method, mold and the waterproof case of water proof ring.
The technical scheme is that provide it is a kind of can high-precision high-volume shell surface forming water proof ring method,
Include the following steps:
(S1), one layer of adhesive is applied in the outer surface of shell, and the shell for being coated with adhesive is spent at 60 degree -80 Celsius
At a temperature of, it heats 10-15 minutes；
(S2), it will be placed in the station for setting mode on the lower die seat with the processed shell of (S1) step, and make the appearance of shell
The type chamber for forming water proof ring is constituted between face and the inner surface of mode；More than two injecting glues are wherein equipped on the mode
Point is equipped at least two for placing the station of shell around each injecting glue point, and the type chamber of each station passes through tributary
Road is communicated with injecting glue point, and the distance of each branch flow passage is of substantially equal；
(S3), upper flitch and the mode are molded, wherein be equipped at least one in the one side far from the mode of upper flitch
A trough is equipped with material hole equal with injecting glue point quantity, and communicating with injecting glue point one-to-one correspondence in trough；
(S4), fixed measured liquid-state silicon gel in advance is put into trough, the liquid-state silicon gel is expected by liquid-state silicon gel A and liquid-state silicon
Glue B material is pre-mixed；
(S5), upper die holder and upper flitch are closed up, is pressed onto the binder block on upper die holder in trough, liquid-state silicon gel is compressed；
(S6), upper die holder and lower die holder are heated, makes the temperature of liquid-state silicon gel 120 degree of -150 degree Celsius, keeps 160-240
Second.
As improvement of the present invention, the station is rectangular array around each injecting glue point arrangement, or
Station described in person is that rounded array is arranged around each injecting glue point.
As improvement of the present invention, the shell is metal shell or plastic shell.
As improvement of the present invention, the shell is plate terminal adapter shell.
As improvement of the present invention, the suitable for reading of the shell is equipped with turned-out crimping, the crimping and mode it is interior
Structure forming cavity between wall.
As improvement of the present invention, the mode includes upper cores and lower mode, and the suitable for reading of the shell is equipped with outward
The crimping turned over, structure forming cavity between the crimping and the inner wall of upper cores；The lower mode is equipped with protrusion, and the protrusion is stretched outside
In the inner space of the shell.
The present invention provides one kind can be in high precision in high volume in the mold of shell surface forming water proof ring, including upper die holder is under
Die holder is equipped with mode between upper die holder and lower die holder, and more than two injecting glue points are equipped on the mode, surrounds each institute
The injecting glue point stated is equipped at least two for placing the station of shell, and the type chamber of each station passes through branch flow passage and injecting glue point phase
It is logical, and the distance of each branch flow passage is of substantially equal；It is put in the one side far from the mode of upper flitch equipped at least one
Hopper is equipped with material hole equal with injecting glue point quantity, and communicating with injecting glue point one-to-one correspondence in trough；Upper die holder with
Upper flitch opposite side is equipped with the binder block of the upper mold seating face of protrusion, and the binder block is corresponding with the trough in upper flitch to be set
It sets.
As improvement of the present invention, the station is rectangular array around each injecting glue point arrangement, or
Station described in person is that rounded array is arranged around each injecting glue point.
As improvement of the present invention, the shell is metal shell or plastic shell.
As improvement of the present invention, the shell is plate terminal adapter shell.
As improvement of the present invention, the suitable for reading of the shell is equipped with turned-out crimping, the crimping and mode it is interior
Structure forming cavity between wall.
As improvement of the present invention, the mode includes upper cores and lower mode, and the suitable for reading of the shell is equipped with outward
The crimping turned over, structure forming cavity between the crimping and the inner wall of upper cores；The lower mode is equipped with protrusion, and the protrusion is stretched outside
In the inner space of the shell.
The present invention provides a kind of waterproof case, including outer cover body, is equipped with low temperature in the predetermined position of the outer cover body
Injection moulding is formed in the water proof ring on outer cover body outer surface.
As improvement of the present invention, the low temperature injection moulding includes the following steps:
(S1), one layer of adhesive is applied in the outer surface of shell, and the shell for being coated with adhesive is spent at 60 degree -80 Celsius
At a temperature of, it heats 10-15 minutes；
(S2), it will be placed in the station for setting mode on the lower die seat with the processed shell of (S1) step, and make the appearance of shell
The type chamber for forming water proof ring is constituted between face and the inner surface of mode；More than two injecting glues are wherein equipped on the mode
Point is equipped at least two for placing the station of shell around each injecting glue point, and the type chamber of each station passes through tributary
Road is communicated with injecting glue point, and the distance of each branch flow passage is of substantially equal；
(S3), upper flitch and the mode are molded, wherein be equipped at least one in the one side far from the mode of upper flitch
A trough is equipped with material hole equal with injecting glue point quantity, and communicating with injecting glue point one-to-one correspondence in trough；
(S4), fixed measured liquid-state silicon gel in advance is put into trough, the liquid-state silicon gel is expected by liquid-state silicon gel A and liquid-state silicon
Glue B material is pre-mixed；
(S5), upper die holder and upper flitch are closed up, is pressed onto the binder block on upper die holder in trough, liquid-state silicon gel is compressed；
(S6), upper die holder and lower die holder are heated, makes the temperature of liquid-state silicon gel 120 degree of -150 degree Celsius, keeps 160-240
Second.
As improvement of the present invention, the station is rectangular array around each injecting glue point arrangement, or
Station described in person is that rounded array is arranged around each injecting glue point.
As improvement of the present invention, the shell is metal shell or plastic shell.
As improvement of the present invention, the shell is plate terminal adapter shell.
As improvement of the present invention, the suitable for reading of the shell is equipped with turned-out crimping, the crimping and mode it is interior
Structure forming cavity between wall.
As improvement of the present invention, the mode includes upper cores and lower mode, and the suitable for reading of the shell is equipped with outward
The crimping turned over, structure forming cavity between the crimping and the inner wall of upper cores；The lower mode is equipped with protrusion, and the protrusion is stretched outside
In the inner space of the shell.
Multiple injecting glue points are arranged in one set of die due to using in the present invention, and each injecting glue point is correspondingly provided with multiple runners
Equidistant station can double up output compared with existing liquid-state silicon gel injection forming machine；The present invention is due also to adopt
With most simplified mold design, mode five-layer structure under upper die holder, lower die holder, upper flitch, lower die Renhe is only included, in this way may be used
To greatly reduce the accumulated error of mold, the precision of product is improved.
Detailed description of the invention
Fig. 1 is the flow diagram of production method of the invention.
Fig. 2 is a kind of decomposition texture schematic diagram of embodiment of inventive die.
Fig. 3 is the planar structure schematic diagram after the combination of embodiment illustrated in fig. 2.
Fig. 4 is the upper die holder present invention looks up structural representation in embodiment illustrated in fig. 2.
Fig. 5 is the upper flitch overlooking structure diagram in embodiment illustrated in fig. 2.
Fig. 6 is the upper cores overlooking structure diagram in embodiment illustrated in fig. 2.
Fig. 7 is another upper cores overlooking structure diagram of illustrated embodiment of the present invention.
Fig. 8 is the lower mode overlooking structure diagram in embodiment illustrated in fig. 2.
Fig. 9 is the lower die holder overlooking structure diagram in embodiment illustrated in fig. 2.
Figure 10 is the shell schematic cross-sectional view in embodiment of the present invention.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
Referring to Figure 1, what Fig. 1 was disclosed is that one kind high-volume can be wrapped in the method for shell surface forming water proof ring in high precision
Include following steps:
(S1), one layer of adhesive is applied in the outer surface of shell, and the shell for being coated with adhesive is spent at 60 degree -80 Celsius
At a temperature of, it heats 10-15 minutes；The adhesive can be using the type of Shanghai You Wei new material technology Co., Ltd production
Number be PM-1206(SAMPLE) adhesive；
(S2), it will be placed in the station for setting mode on the lower die seat with the processed shell of (S1) step, and make the appearance of shell
The type chamber for forming water proof ring is constituted between face and the inner surface of mode；More than two injecting glues are wherein equipped on the mode
(the injecting glue point in the present invention is 8 to point, that is, every metaideophone of the invention is primary, is equivalent to the liquid-state silicon used in the prior art
8 times of outputs of gum forming machine, it is clear that the quantity of injecting glue point as needed can select in 2 or more any number values,
Preferably, the quantity of injecting glue point can select within 2-30), at least two, which are equipped with, around each injecting glue point is used for
The station for placing shell (in the present invention, matches 4 stations using an injecting glue point, certainly, an injecting glue point can also configure
2-8 station), the type chamber of each station is communicated by branch flow passage with injecting glue point, and the basic phase of distance of each branch flow passage
Deng；
(S3), upper flitch and the mode are molded, wherein be equipped at least one in the one side far from the mode of upper flitch
A trough is equipped with material hole equal with injecting glue point quantity, and communicating with injecting glue point one-to-one correspondence in trough；The mode
Including upper cores and lower mode, the suitable for reading of the shell is equipped with turned-out crimping, between the crimping and the inner wall of upper cores
Structure forming cavity；The lower mode is equipped with protrusion, and the protrusion is stretched outside in the inner space of the shell；
(S4), fixed measured liquid-state silicon gel in advance is put into trough, the liquid-state silicon gel is expected by liquid-state silicon gel A and liquid-state silicon
Glue B material is pre-mixed；The liquid-state silicon gel A material and liquid-state silicon gel B material can use Guangdong polymerization organosilicon limited material
The product of company's production；
(S5), upper die holder and upper flitch are closed up, is pressed onto the binder block on upper die holder in trough, liquid-state silicon gel is compressed；
(S6), upper die holder and lower die holder are heated, makes the temperature of liquid-state silicon gel 120 degree of -150 degree Celsius, keeps 160-240
Second.The heating that upper die holder and lower die holder heat can be tightly attached on upper die holder and lower die holder using upper and lower heating block, it is right
Upper die holder and lower die holder are heated.
Multiple injecting glue points are arranged in one set of die due to using in the present invention, and each injecting glue point is correspondingly provided with multiple runners
Equidistant station can double up output compared with existing liquid-state silicon gel injection forming machine；The present invention is due also to adopt
With most simplified mold design, mode five-layer structure under upper die holder, lower die holder, upper flitch, lower die Renhe is only included, in this way may be used
To greatly reduce the accumulated error of mold, the precision of product is improved.
Preferably, the station is rectangular array around the (such as Fig. 6) or described of each injecting glue point arrangement
Station is (such as Fig. 7) of rounded array around each injecting glue point arrangement.
Preferably, the shell is metal shell or plastic shell；The shell is plate terminal adapter shell；The shell
It is suitable for reading be equipped with turned-out crimping, structure forming cavity between the crimping and the inner wall of mode.
Fig. 2-Fig. 9 is referred to, what Fig. 2-Fig. 9 was disclosed is that one kind can be in high precision in high volume in shell surface forming water proof ring
Mold, including upper die holder 1 and lower die holder 5, between upper die holder 1 and lower die holder 5 be equipped with mode, set on the mode there are two
Above injecting glue point 32 is equipped at least two for placing the station 31, Mei Gegong of shell 6 around each injecting glue point 32
The type chamber 35 of position 31 is communicated by branch flow passage 33 with injecting glue point 32, and the distance apart from injecting glue point 32 of each branch flow passage 33
It is of substantially equal；Be equipped at least one trough 21 far from the one side of the mode in upper flitch 2, be equipped in trough 21 with
Injecting glue 32 quantity of point are equal, and correspond the material hole 22 communicated with injecting glue point 32；In upper die holder 1 with upper flitch 2 with respect to one
Face is equipped with the binder block 11 for protruding from upper mold seating face, and the binder block 11 is correspondingly arranged with the trough 21 in upper flitch 2；This
In embodiment, the mode includes upper cores 3 and lower mode 4, and the upper cores 3 and lower mode 4 are by being located at upper cores 3
On second location hole 36 and be located on lower mode the second positioning column 43 positioning, the shell 6 it is suitable for reading be equipped with it is turned-out
Crimping 61, structure forming cavity 35 between the crimping 61 and the inner wall of upper cores 3；The lower mode 4 is equipped with protrusion 41, described convex
It plays 41 to be stretched outside in the inner space 62 of the shell 6, in the present embodiment, described raised 41 are located on boss 42, and upper cores 3 are under
When mode 4 molds, the boss 42 cooperates with the recess portion 34 in upper cores 3.In the present embodiment, it is fixed that first is equipped in upper die holder 1
Position column 12, first positioning column 12 cooperate with the first positioning hole 23 in upper flitch 2；It is fixed equipped with third on the lower die holder
Position column 51, the third positioning column 51 cooperate with the second location hole 24 being located in upper flitch 2.Silica gel enters shell in order to prevent
In 6, be equipped on the bottom surface of the upper flitch 2 it is small by raised 25, it is small by raised 25 after the upper flitch 2 is molded with upper cores 3
It is just inserted in the suitable for reading interior of shell 6, is blocked suitable for reading.
Preferably, the station is (referring to the Fig. 6) of rectangular array around each injecting glue point arrangement, Huo Zhesuo
Stating station is (referring to the Fig. 7) of rounded array around each injecting glue point arrangement.
Preferably, the shell 6 is metal shell or plastic shell；The shell is plate terminal adapter shell；It is described outer
The suitable for reading of shell 6 is equipped with turned-out crimping 61, structure forming cavity 35 between the crimping 61 and the inner wall of mode 3.
It is a kind of waterproof case 7, including outer cover body 71 that 0, Figure 10 is revealed referring to Figure 1, in the outer cover body
71 predetermined position is equipped with low temperature injection moulding and is formed in the water proof ring 72 on 71 outer surface of outer cover body.
Preferably, the low temperature injection moulding includes the following steps:
(S1), one layer of adhesive is applied in the outer surface of shell, and the shell for being coated with adhesive is spent at 60 degree -80 Celsius
At a temperature of, it heats 10-15 minutes；The adhesive can be using the type of Shanghai You Wei new material technology Co., Ltd production
Number be PM-1206(SAMPLE) adhesive；
(S2), it will be placed in the station for setting mode on the lower die seat with the processed shell of (S1) step, and make the appearance of shell
The type chamber for forming water proof ring is constituted between face and the inner surface of mode；More than two injecting glues are wherein equipped on the mode
(the injecting glue point in the present invention is 8 to point, that is, every metaideophone of the invention is primary, is equivalent to the liquid-state silicon used in the prior art
8 times of outputs of gum forming machine, it is clear that the quantity of injecting glue point as needed can select in 2 or more any number values,
Preferably, the quantity of injecting glue point can select within 2-30), at least two, which are equipped with, around each injecting glue point is used for
The station for placing shell (in the present invention, matches 4 stations using an injecting glue point, certainly, an injecting glue point can also configure
2-8 station), the type chamber of each station is communicated by branch flow passage with injecting glue point, and the basic phase of distance of each branch flow passage
Deng；
(S3), upper flitch and the mode are molded, wherein be equipped at least one in the one side far from the mode of upper flitch
A trough is equipped with material hole equal with injecting glue point quantity, and communicating with injecting glue point one-to-one correspondence in trough；The mode
Including upper cores and lower mode, the suitable for reading of the shell is equipped with turned-out crimping, between the crimping and the inner wall of upper cores
Structure forming cavity；The lower mode is equipped with protrusion, and the protrusion is stretched outside in the inner space of the shell；
(S4), fixed measured liquid-state silicon gel in advance is put into trough, the liquid-state silicon gel is expected by liquid-state silicon gel A and liquid-state silicon
Glue B material is pre-mixed；The liquid-state silicon gel A material and liquid-state silicon gel B material can use Guangdong polymerization organosilicon limited material
The product of company's production；
(S5), upper die holder and upper flitch are closed up, is pressed onto the binder block on upper die holder in trough, liquid-state silicon gel is compressed；
(S6), upper die holder and lower die holder are heated, makes the temperature of liquid-state silicon gel 120 degree of -150 degree Celsius, keeps 160-240
Second.
Preferably, the station is rectangular array around the (such as Fig. 6) or described of each injecting glue point arrangement
Station is (such as Fig. 7) of rounded array around each injecting glue point arrangement.
Preferably, the shell is metal shell or plastic shell；The shell is plate terminal adapter shell；The shell
It is suitable for reading be equipped with turned-out crimping, structure forming cavity between the crimping and the inner wall of mode.
Claims (6)
1. one kind can be in high precision in high volume in the method for shell surface forming water proof ring, which comprises the steps of:
(S1), one layer of adhesive is applied in the outer surface of shell, and the shell for being coated with adhesive is spent at 60 degree -80 Celsius
At a temperature of, it heats 10-15 minutes；
(S2), it will be placed in the station for setting mode on the lower die seat with the processed shell of (S1) step, and make the appearance of shell
The type chamber for forming water proof ring is constituted between face and the inner surface of mode；More than two injecting glues are wherein equipped on the mode
Point is equipped at least two for placing the station of shell around each injecting glue point, and the type chamber of each station passes through tributary
Road is communicated with injecting glue point, and the distance of each branch flow passage is of substantially equal；
(S3), upper flitch and the mode are molded, wherein be equipped at least one in the one side far from the mode of upper flitch
A trough is equipped with material hole equal with injecting glue point quantity, and communicating with injecting glue point one-to-one correspondence in trough；
(S4), fixed measured liquid-state silicon gel in advance is put into trough, the liquid-state silicon gel is expected by liquid-state silicon gel A and liquid-state silicon
Glue B material is pre-mixed；
(S5), upper die holder and upper flitch are closed up, is pressed onto the binder block on upper die holder in trough, liquid-state silicon gel is compressed；
(S6), upper die holder and lower die holder are heated, makes the temperature of liquid-state silicon gel 120 degree of -150 degree Celsius, keeps 160-240
Second.
2. one kind according to claim 1 can be in high precision in high volume in the method for shell surface forming water proof ring, feature
It is, the station is that rectangular array is arranged around each injecting glue point or the station is rounded array
Around each injecting glue point arrangement.
3. one kind according to claim 1 or 2 can be special in high precision in high volume in the method for shell surface forming water proof ring
Sign is that the shell is metal shell or plastic shell.
4. one kind according to claim 3 can be in high precision in high volume in the method for shell surface forming water proof ring, feature
It is, the shell is plate terminal adapter shell.
5. one kind according to claim 1 or 2 can be special in high precision in high volume in the method for shell surface forming water proof ring
Sign is that the suitable for reading of the shell is equipped with turned-out crimping, structure forming cavity between the crimping and the inner wall of mode.
6. one kind according to claim 1 or 2 can be special in high precision in high volume in the method for shell surface forming water proof ring
Sign is, the mode includes upper cores and lower mode, and the suitable for reading of the shell is equipped with turned-out crimping, the crimping with it is upper
Structure forming cavity between the inner wall of mode；The lower mode is equipped with protrusion, and the protrusion is stretched outside in the inner space of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700335.8A CN109397613A (en) | 2017-08-16 | 2017-08-16 | It can be in high precision in high volume in the method for shell surface forming water proof ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710700335.8A CN109397613A (en) | 2017-08-16 | 2017-08-16 | It can be in high precision in high volume in the method for shell surface forming water proof ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109397613A true CN109397613A (en) | 2019-03-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710700335.8A Pending CN109397613A (en) | 2017-08-16 | 2017-08-16 | It can be in high precision in high volume in the method for shell surface forming water proof ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109397613A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640970A (en) * | 2019-08-26 | 2020-01-03 | 广东长盈精密技术有限公司 | Method for processing functional hole of electronic product shell and insert adopted by same |
Citations (2)
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|---|---|---|---|---|
| CN104029329A (en) * | 2014-05-29 | 2014-09-10 | 东莞劲胜精密组件股份有限公司 | Integral molding production method of 3C electronic product waterproof structure and production equipment thereof |
| CN104994189A (en) * | 2015-07-01 | 2015-10-21 | 东莞劲胜精密组件股份有限公司 | Waterproof mobile phone shell and manufacturing method thereof |
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2017
- 2017-08-16 CN CN201710700335.8A patent/CN109397613A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104029329A (en) * | 2014-05-29 | 2014-09-10 | 东莞劲胜精密组件股份有限公司 | Integral molding production method of 3C electronic product waterproof structure and production equipment thereof |
| CN104994189A (en) * | 2015-07-01 | 2015-10-21 | 东莞劲胜精密组件股份有限公司 | Waterproof mobile phone shell and manufacturing method thereof |
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| 申开智: "《塑料成型模具 3版》", 31 March 2013 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110640970A (en) * | 2019-08-26 | 2020-01-03 | 广东长盈精密技术有限公司 | Method for processing functional hole of electronic product shell and insert adopted by same |
| CN110640970B (en) * | 2019-08-26 | 2022-07-15 | 广东长盈精密技术有限公司 | Method for processing functional hole of electronic product shell and insert adopted by same |
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