CN109177059A - A kind of O-shaped rubber ring injection molding and its method for processing O-shaped rubber ring - Google Patents
A kind of O-shaped rubber ring injection molding and its method for processing O-shaped rubber ring Download PDFInfo
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- CN109177059A CN109177059A CN201811018141.0A CN201811018141A CN109177059A CN 109177059 A CN109177059 A CN 109177059A CN 201811018141 A CN201811018141 A CN 201811018141A CN 109177059 A CN109177059 A CN 109177059A
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- middle mould
- shaped rubber
- rubber ring
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- mold
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- 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
-
- 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
- B29C45/34—Moulds having venting means
-
- 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
- B29C2045/2683—Plurality of independent mould cavities in a single mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
- B29L2031/265—Packings, Gaskets
Abstract
The invention discloses a kind of O-shaped rubber ring injection molding and its methods for processing O-shaped rubber ring, are related to O-shaped rubber ring manufacture field.O-shaped rubber ring injection molding of the invention, comprising: upper mold, the upper surface of the upper mold are equipped with the sprue of two intersections, and the both ends of each sprue are respectively equipped with the runner hole for penetrating through entire upper mold from top to bottom；Positioned at the middle mould of lower part of upper die, the upper surface of middle mould is equipped with diffluence pass corresponding with runner hole each in upper mold, and the diffluence pass on middle mould is the channel of mould during perforation from top to bottom is entire；The forming tank of annular is equipped with around each diffluence pass on middle mould upper surface, each forming tank is connected to by corresponding runner with an immediate diffluence pass respectively；And the lower die below middle mould.One injection of the present invention can efficiently produce multiple O-shaped rubber rings, improve the production efficiency of O-shaped rubber ring.
Description
Technical field
The present invention relates to O-shaped rubber ring manufacture field, more specifically to a kind of O-shaped rubber ring injection molding and its
The method for processing O-shaped rubber ring.
Background technique
O-shaped rubber ring is the annular rubber ring with circular cross-section, and be mainly used for mechanical part prevents in a static condition
The leakage of liquids and gases medium, in some cases, it can also be used as the dynamic of axially reciprocating and low-speed rotation
Sealing element can select respectively different materials to be adapted therewith according to different conditions, using relatively broad.To sum up, O
Type rubber coil structures are simple, and sealing performance is reliable, are widely used in various field of sealing technology.
The compression molding of rubber-moulding technology development experience, injection moulding and 3 stages of injection moulding.Current 3 kinds of moldings
Technique is all using, but produces O-shaped rubber ring and use more still for die press technology for forming, injection moulding and injection molding technique
Using relatively fewer.Injection molding technique is not high suitable for rubber hardness, the preferable rubber material of mobility, with production efficiency
The high, advantages such as product properties is stable, labor intensity is low.
Have related patents about the technical solution using injection molding technique production rubber product in the prior art to disclose,
Such as patent publication No.: 205310716 U of CN, publication date: on 06 15th, 2016, a kind of invention and created name are as follows: rubber note
Mold is penetrated, this application discloses a kind of rubber injection mold, cope plate upper end is connected with cast gate, the lower end connection glue injection of cast gate
Pipe, injected rubber hose are arranged inside cope plate, and lower template is equipped with intermediate shank portion, and a part of intermediate shank portion is arranged in intermediate die plate
Interior, shape forming cavity between intermediate shank portion and intermediate die plate, the exterior end of injected rubber hose is connected with first exhaust passage, the bottom of type chamber
Portion is connected with second exhaust channel, the junction environmental sealing ring recess of type chamber and second exhaust channel, the end in second exhaust channel
End connection aspirator vacuum pump, aspirator vacuum pump the outside that mold is arranged in.But above rubber injection mold but can not be efficient
Production O-shaped rubber ring.
In conclusion O-shaped rubber ring can not efficiently be produced not using injection molding technique in the prior art by how overcoming
Foot, be in the prior art urgent need to resolve the technical issues of.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome efficiently produce O-shaped rubber ring using injection molding technique in the prior art
Deficiency, a kind of method for providing O-shaped rubber ring injection molding and its processing O-shaped rubber ring, one injection can efficiently produce more
A O-shaped rubber ring improves the production efficiency of O-shaped rubber ring.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
O-shaped rubber ring injection molding of the invention, comprising:
Upper mold, the upper surface of the upper mold are equipped with the sprue of two intersections, and the both ends of each sprue are respectively equipped with from upper
And the runner hole of the lower entire upper mold of perforation；
Positioned at the middle mould of lower part of upper die, the upper surface of the middle mould is equipped with shunting corresponding with runner hole each in upper mold
Mouthful, the diffluence pass on middle mould is the channel of mould during perforation from top to bottom is entire；Around each diffluence pass on middle mould upper surface
Forming tank equipped with annular, each forming tank are connected to by corresponding runner with an immediate diffluence pass respectively；
And the lower die below middle mould, the structure of the lower die upper surface it is identical as the structure of middle mould upper surface and under
The bottom of diffluence pass, which is blocked, on mould clogs.
As further improvement of the present invention, outer flash that each forming tank on middle mould upper surface and its outside surround
It is separated between slot by outer flash sword, passes through interior hair between each forming tank on middle mould upper surface and the interior flash slot on the inside of it
Side sword separates.
As further improvement of the present invention, one is equipped with from upper at the medial center of each forming tank on middle mould upper surface
And the lower gas vent through middle mould.
As further improvement of the present invention, the marginal portion of the middle mould upper surface is an area Quan Waijiangmian, middle mould
The outer periphery of each gas vent is equipped with an area Nei Jiangmian in a ring, the upper surface in the area Wai Jiangmian and described on upper surface
The upper surface in the area Nei Jiangmian is below the highest point of mould upper surface in entire.
As further improvement of the present invention, table on the outer flash sword upper surface of the middle mould upper surface and interior flash sword
Face is below the highest point of mould upper surface in entire.
As further improvement of the present invention, the interior flash slot of the middle mould upper surface passes through exhaust duct and the area Nei Jiangmian
Connection；The outer flash slot of the middle mould upper surface is connected to by exhaust duct with the area Wai Jiangmian.
As further improvement of the present invention, middle mould upper surface is equipped with nine forming tanks of three rows three column arrangement, in
It is set around each diffluence pass on mould upper surface there are four forming tank, each forming tank on middle mould upper surface passes through two corresponding
Runner is connected to the same diffluence pass；Four diffluence pass on middle mould upper surface, wherein three it is each with corresponding two
Forming tank connection, one of them is connected to corresponding three forming tanks.
Further include lower installation board as further improvement of the present invention, several installations are offered on the lower installation board
Through slot, bolt are threadedly coupled after passing through the installation through slot on lower installation board with the lower surface of lower die, and opened up in the lower die
Gas vent is connected to corresponding installation through slot.
It further include upper transition plates as further improvement of the present invention, the upper transition plates is placed in the upper surface of upper mold,
The upper surface of upper transition plates is fixed with injection seat, and the injection port for penetrating through injection seat from top to bottom, upper mistake are offered on the injection seat
The clear opening for running through upper transition plates from top to bottom, the lower end and upper mold upper surface two of the clear opening are offered at the center of cab apron
The infall of sprue is connected to, and the upper end of the clear opening is connected to the lower end of injection port.
A method of as the above O-shaped rubber ring injection molding processes O-shaped rubber ring, comprising the following steps:
Step A: upper mold, middle mould and lower die are mounted on rubber injection vulcanizer, barrel temperature is set in 60~70
DEG C, mold temperature set is injected at 160~180 DEG C；
Step B: pressurization 18~20Mpa molding, sizing material are implanted sequentially upper mold, middle mould and lower die by upper transition plates；
Step C: after vulcanization 3~4 minutes, mold retreats to workbench, stops injection sizing material, and upper mold, middle mould and lower die is equal
It separates；
Step D: taking out the product between upper mold and middle mould, the product in taking-up between mould and lower die.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result:
(1) in the present invention, mold multilayer runs through, upper mold and lower mold by pass-through zone fill upper mold and
Lower mold, one injection can efficiently produce multiple O-shaped rubber rings, and pass through very thin company between multiple O-shaped rubber rings
Film connection is connect, only needs gently one to draw, two adjacent O-shaped rubber rings can separate, good appearance, and no glue side generates, using more
Add conveniently, greatly reduces the waste of sizing material.
(2) in the present invention, the marginal portion of middle mould upper surface is an area Quan Waijiangmian, each gas vent on middle mould upper surface
Outer periphery be equipped with an area Nei Jiangmian in a ring, the upper surface in the area Wai Jiangmian and the upper surface in the area Nei Jiangmian are below entirely
The highest point of middle mould upper surface, arrangement above significantly reduce the effective area that mold contacts with each other, so that middle mould and upper mold are closed
It when mould, is not directly contacted between the area Wai Jiangmian and upper mold and between the area Nei Jiangmian and upper mold, the pressure at effective contact surface is aobvious
Enhancing is write, and each forming tank is located between the region that contact surface surrounds corresponding effectively, so that the molding of O-shaped rubber ring
Effect is more preferable.
(3) in the present invention, when middle mould and Ccope closing machine, each forming tank is located at what corresponding effectively contact surface surrounded
Between region, and the pressure in the present invention at effective contact surface significantly increases, consequently facilitating in forming tank sizing material gas discharge,
Wherein gas can be passed through the area Wai Jiangmian by exhaust duct outward and be drained, and gas can inwardly be passed through the area Nei Jiangmian by exhaust duct
Drain into corresponding gas vent, is discharged convenient for gas in sizing material in type chamber weld, effectively optimizes injection molding trapped gas and ask
Topic and product welding trace problem improve the quality that O-shaped rubber ring is made.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the explosive view of the O-shaped rubber ring injection molding of embodiment；
Fig. 2 is the structural schematic diagram of upper transition plates in embodiment；
Fig. 3 is the structural schematic diagram of upper mold in embodiment；
Fig. 4 is the structural schematic diagram of middle mould in embodiment；
Fig. 5 is the partial structural diagram of middle mould in embodiment；
Fig. 6 is the structural schematic diagram of lower die in embodiment；
Fig. 7 is the structural schematic diagram of lower installation board in embodiment.
Label declaration in schematic diagram: 1, upper transition plates；101, injection seat；1011, injection port；2, upper mold；201, mainstream
Road；2011, runner hole；3, middle mould；301, the area Wai Jiangmian；302, the area Nei Jiangmian；303, gas vent；304, diffluence pass；305, divide
Runner；306, exhaust duct；307, forming tank；308, outer flash slot；309, outer flash sword；310, interior flash sword；311, interior flash
Slot；4, lower die；5, lower installation board；501, through slot is installed.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Therefore, below to the embodiment of the present invention provided in the accompanying drawings
Detailed description be not intended to limit the range of claimed invention, but be merely representative of selected embodiment of the invention.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts all
Other embodiments shall fall within the protection scope of the present invention.
To further appreciate that the contents of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
In conjunction with Fig. 1-7, the O-shaped rubber ring injection molding of the present embodiment, comprising:
Upper mold 2, the upper surface of the upper mold 2 are equipped with the sprue 201 of two intersections, the both ends difference of each sprue 201
Equipped with the runner hole 2011 for penetrating through entire upper mold 2 from top to bottom；
Middle mould 3 positioned at 2 lower section of upper mold, the upper surface of middle mould 3 are equipped with corresponding with runner hole 2011 each in upper mold 2
Diffluence pass 304, the diffluence pass 304 on middle mould 3 are the channel of mould 3 during perforation from top to bottom is entire；Each of on middle 3 upper surface of mould
Be equipped with the forming tank 307 of annular around diffluence pass 304, each forming tank 307 respectively by corresponding runner 305 with most
A close diffluence pass 304 connection；One is equipped on middle 3 upper surface of mould at the medial center of each forming tank 307 from top to bottom
Through the gas vent 303 of middle mould 3；
Lower die 4 positioned at 3 lower section of middle mould, the structure of 4 upper surface of lower die is identical as the structure of middle 3 upper surface of mould and lower die 4
The bottom of upper diffluence pass 304, which is blocked, to be clogged；(it should be noted that in the present embodiment in the structure of 4 upper surface of lower die and middle mould 3
The structure on surface is identical, and the statement of following 3 surface structure of centering mould is equally applicable to 4 upper surface of lower die, i.e. lower die 4 is equivalent to
Mould 3 in another, only the bottom of diffluence pass 304 is blocked and clogs in lower die 4, prevents from injecting sizing material therein flowing away).
Upper transition plates 1, upper transition plates 1 are placed in the upper surface of upper mold 2, and the upper surface of upper transition plates 1 is fixed with injection seat
101, the injection port 1011 for penetrating through injection seat 101 from top to bottom is offered on the injection seat 101, is opened at the center of upper transition plates 1
Equipped with the clear opening for running through upper transition plates 1 from top to bottom, lower end and upper mold 2 upper surface two sprue 201 of the clear opening
Infall connection, the upper end of the clear opening is connected to the lower end of injection port 1011；
And lower installation board 5, several installation through slots 501 are offered on lower installation board 5, bolt passes through on lower installation board 5
Installation through slot 501 after is threadedly coupled with the lower surface of lower die 4 (end of bolt be greater than install through slot 501 width so that by spiral shell
After the lower surface of bolt and lower die 4 is completely embedded, lower die 4 can be mounted on lower installation board 5), and the gas vent opened up in lower die 4
303 are connected to corresponding installation through slot 501, convenient for gas is passed through in installation through slot 501 from gas vent 303 and is discharged.
In specific the present embodiment, outer flash slot 308 that each forming tank 307 and its outside on middle 3 upper surface of mould surround
Between separated by outer flash sword 309, between each forming tank 307 on middle 3 upper surface of mould and the interior flash slot 311 on the inside of it
It is separated by interior flash sword 310.The marginal portion of middle 3 upper surface of mould is an area Quan Waijiangmian 301, each on middle 3 upper surface of mould
The outer periphery of gas vent 303 is equipped with an area Nei Jiangmian 302 in a ring, the upper surface and the area Nei Jiangmian 302 in the area Wai Jiangmian 301
Upper surface be below the highest point of 3 upper surface of mould in entire.Outer 309 upper surface of flash sword of middle 3 upper surface of mould and interior flash
310 upper surface of sword is below the highest point of 3 upper surface of mould in entire.The interior flash slot 311 of middle 3 upper surface of mould passes through exhaust duct
306 are connected to the area Nei Jiangmian 302；The outer flash slot 308 of middle 3 upper surface of mould is connected to by exhaust duct 306 with the area Wai Jiangmian 301.
In specific the present embodiment, middle 3 upper surface of mould is equipped with nine forming tanks 307 of three rows three column arrangement, table on middle mould 3
It is set around each diffluence pass 304 on face there are four forming tank 307, each forming tank 307 on middle 3 upper surface of mould passes through correspondence
Two runners 305 are connected to the same diffluence pass 304；Four diffluence pass 304 on middle 3 upper surface of mould, wherein three each
It is connected to corresponding two forming tanks 307, one of them is connected to corresponding three forming tanks 307.
In the present embodiment, two intersection sprues on 2 upper surface of upper mold are reached from the sizing material injected in injection port 1011
In 201,4 in lower die 4 are finally then reached out of 4 diffluence pass 304 in four entrance of runner holes 2011 on mould 3 respectively
In a diffluence pass 304 and in the diffluence pass 304 that is blocked in lower die 4, wherein in arrival on 3 upper surface of mould in diffluence pass 304
Sizing material flowed into corresponding outer flash slot 308 by corresponding runner 305, the sizing material being full of in each outer flash slot 308
It crosses corresponding outer flash sword 309 under pressure to enter in corresponding forming tank 307, sizing material is full of after forming tank 307
O-shaped rubber ring is frozen into forming tank 307, extra sizing material crosses the interior flash sword of 307 inside of forming tank under pressure
Storage in flash slot 311 in being reached after 310.
In the present embodiment, between the outer flash slot 308 that each forming tank 307 and its outside on middle 3 upper surface of mould surround
It is separated by outer flash sword 309, is passed through between each forming tank 307 on middle 3 upper surface of mould and the interior flash slot 311 on the inside of it
Interior flash sword 310 separates, and when O-shaped rubber ring removes from the mold, the overlap of O-shaped rubber ring two sides is in outer 309 He of flash sword
Thinner thickness under the action of interior flash sword 310 can easily remove the overlap of O-shaped rubber ring two sides.
In the present embodiment, the marginal portion of middle 3 upper surface of mould is an area Quan Waijiangmian 301, each row on middle 3 upper surface of mould
The outer periphery of stomata 303 is equipped with an area Nei Jiangmian 302 in a ring, the upper surface in the area Wai Jiangmian 301 and the area Nei Jiangmian 302
Upper surface is below the highest point of 3 upper surface of mould in entire, and arrangement above significantly reduces the significant surface that mold contacts with each other
Effective contact area of product, i.e., middle mould 3 and upper mold 2 is substantially reduced, and effective contact surface is the area Nei Jiangmian 302 and interior flash slot
Region (area Ji Waijiangmian 301 and the area Nei Jiangmian between region and the area Wai Jiangmian 301 and outer flash slot 308 between 311
The height of 302 upper surfaces declines, when so that middle mould 3 and upper mold 2 molding, between the area the Wai Jiangmian 301 and upper mold 2 and area Nei Jiangmian
It is not directly contacted between 302 and upper mold 2) so that the pressure at effective contact surface is significant when middle mould 3 and upper mold 2 mold
Enhancing, and each forming tank 307 is located between the region that corresponding effectively contact surface surrounds (i.e. each forming tank 307
Outside is the region between the area Wai Jiangmian 301 and corresponding outer flash slot 308, and the inside of each forming tank 307 is drop face in corresponding
Region between area 302 and corresponding interior flash slot 311) so that the molding effect of O-shaped rubber ring is more preferable.
In the present embodiment, outer 309 upper surface of flash sword and interior 310 upper surface of flash sword of middle 3 upper surface of mould are below whole
The highest point of a 3 upper surface of middle mould, i.e., in mould 3 and upper mold 2 when molding, between outer flash sword 309 and upper mold 2, interior flash sword 310
The equal retention gap between upper mold 2, consequently facilitating sizing material is crossed outer flash sword 309 and reached and is filled in forming tank 307 and just
Interior flash sword 310 is crossed out of forming tank 307 reach in interior flash slot 311 and store, be conducive to O-shaped rubber ring in extra sizing material
Forming process.
In the present embodiment, the interior flash slot 311 of middle 3 upper surface of mould is connected to by exhaust duct 306 with the area Nei Jiangmian 302, in
The outer flash slot 308 of 3 upper surface of mould is connected to by exhaust duct 306 with the area Wai Jiangmian 301, each forming tank on middle 3 upper surface of mould
A gas vent 303 for running through middle mould 3 from top to bottom, when middle mould 3 and upper mold 2 mold, each molding are equipped at 307 medial center
Slot 307 is located between the region that contact surface surrounds corresponding effectively, and the pressure in the present embodiment at effective contact surface is aobvious
Write enhancing, consequently facilitating in 307 sizing material of forming tank gas discharge, wherein gas can be passed through outer drop by exhaust duct 306 outward
Face area 301 and drain, gas can be inwardly passed through by exhaust duct 306 area Nei Jiangmian 302 enter corresponding 303 row of gas vent
It walks, is discharged convenient for gas in sizing material in type chamber weld, effectively optimizes injection molding trapped gas problem and product welding trace problem,
Improve the quality that O-shaped rubber ring is made.
O-shaped rubber ring injection molding in the present embodiment, mainly produce internal diameter φ 100mm or so O-shaped rubber ring,
Wherein, middle 3 upper surface of mould is equipped with nine forming tanks 307 of three rows three column arrangement, each diffluence pass on middle 3 upper surface of mould
Set around 304 there are four forming tank 307, each forming tank 307 on middle 3 upper surface of mould by corresponding two runners 305 with
The same diffluence pass 304 is connected to；Four diffluence pass 304 on middle 3 upper surface of mould, wherein three it is each with corresponding two at
Type groove 307 is connected to, one of them is connected to corresponding three forming tanks 307, so that once may be used by a middle mould 3 or lower die 4
9 O-shaped rubber rings are formed, production efficiency is substantially increased；And the above layout optimization equilibrium problem of asymmetric runner, make every
9 O-shaped rubber ring products on layer mold are almost injected completion simultaneously, to improve product quality and production efficiency, drop
Low manufacturing cost and time cost.
In the present embodiment, mold multilayer runs through, upper mold and lower mold by pass-through zone fill upper mold and
Lower mold, one injection can efficiently produce multiple O-shaped rubber rings, and pass through very thin company between multiple O-shaped rubber rings
Film connection is connect, only needs gently one to draw, two adjacent O-shaped rubber rings can separate, good appearance, and no glue side generates, using more
Add conveniently, greatly reduces the waste of sizing material.
Embodiment 2
A method of the O-shaped rubber ring injection molding based on embodiment 1 processes O-shaped rubber ring, comprising the following steps:
Step A: upper mold 2, middle mould 3 and lower die 4 are mounted on rubber injection vulcanizer, barrel temperature is set in 65
DEG C, mold temperature set projects pressure 90Mpa, issuing velocity 20cm at 170 DEG C3/ s is injected；
Step B: pressurization 19Mpa molding, sizing material are implanted sequentially upper mold 2, middle mould 3 and lower die 4 by upper transition plates 1, fill
The forming tank 307 in forming tank 307 and lower die 4 on middle mould 3；
Step C: after vulcanization 3 minutes, mold retreats to workbench, stops injection sizing material, and upper mold 2, middle mould 3 and lower die 4 is equal
It separates；
Step D: taking out the product between upper mold 2 and middle mould 3, the product in taking-up between mould 3 and lower die 4.
Embodiment 3
A method of the O-shaped rubber ring injection molding based on embodiment 1 processes O-shaped rubber ring, comprising the following steps:
Step A: upper mold 2, middle mould 3 and lower die 4 are mounted on rubber injection vulcanizer, barrel temperature is set in 60
DEG C, mold temperature set projects pressure 90Mpa, issuing velocity 20cm at 160 DEG C3/ s is injected；
Step B: pressurization 18Mpa molding, sizing material are implanted sequentially upper mold 2, middle mould 3 and lower die 4 by upper transition plates 1, fill
The forming tank 307 in forming tank 307 and lower die 4 on middle mould 3；
Step C: after vulcanization 3 minutes, mold retreats to workbench, stops injection sizing material, and upper mold 2, middle mould 3 and lower die 4 is equal
It separates；
Step D: taking out the product between upper mold 2 and middle mould 3, the product in taking-up between mould 3 and lower die 4.
Embodiment 4
A method of the O-shaped rubber ring injection molding based on embodiment 1 processes O-shaped rubber ring, comprising the following steps:
Step A: upper mold 2, middle mould 3 and lower die 4 are mounted on rubber injection vulcanizer, barrel temperature is set in 70
DEG C, mold temperature set projects pressure 90Mpa, issuing velocity 20cm at 180 DEG C3/ s is injected；
Step B: pressurization 20Mpa molding, sizing material are implanted sequentially upper mold 2, middle mould 3 and lower die 4 by upper transition plates 1, fill
The forming tank 307 in forming tank 307 and lower die 4 on middle mould 3；
Step C: after vulcanization 4 minutes, mold retreats to workbench, stops injection sizing material, and upper mold 2, middle mould 3 and lower die 4 is equal
It separates；
Step D: taking out the product between upper mold 2 and middle mould 3, the product in taking-up between mould 3 and lower die 4.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of O-shaped rubber ring injection molding, characterized by comprising:
Upper mold (2), the upper surface of the upper mold (2) are equipped with the sprue (201) of two intersections, the both ends of each sprue (201)
It is respectively equipped with the runner hole (2011) for penetrating through entire upper mold (2) from top to bottom；
The upper surface of middle mould (3) below upper mold (2), the middle mould (3) is equipped with and each runner hole on upper mold (2)
(2011) corresponding diffluence pass (304), the diffluence pass (304) on middle mould (3) are the logical of mould (3) during perforation from top to bottom is entire
Road；The forming tank (307) of annular, each forming tank are equipped with around each diffluence pass (304) on middle mould (3) upper surface
(307) it is connected to respectively by corresponding runner (305) with an immediate diffluence pass (304)；
And it is located at the lower die (4) below middle mould (3), the structure of lower die (4) upper surface and the structure of middle mould (3) upper surface
The bottom of diffluence pass (304), which is blocked, in identical and lower die (4) clogs.
2. O-shaped rubber ring injection molding according to claim 1, it is characterised in that: each of on middle mould (3) upper surface at
It is separated between the outer flash slot (308) that type groove (307) and its outside surround by outer flash sword (309), on middle mould (3) upper surface
Each forming tank (307) and interior flash slot (311) on the inside of it between separated by interior flash sword (310).
3. O-shaped rubber ring injection molding according to claim 2, it is characterised in that: each molding on middle mould (3) upper surface
A gas vent (303) for running through middle mould (3) from top to bottom is equipped at the medial center of slot (307).
4. O-shaped rubber ring injection molding according to claim 3, it is characterised in that: the edge of middle mould (3) upper surface
Part is an area Quan Waijiangmian (301), and the outer periphery of each gas vent (303) is equipped with one in a ring on middle mould (3) upper surface
The area Nei Jiangmian (302), the upper surface of the area Wai Jiangmian (301) and the upper surface in the area Nei Jiangmian (302) are below whole
The highest point of a middle mould (3) upper surface.
5. O-shaped rubber ring injection molding according to claim 4, it is characterised in that: the outer hair of middle mould (3) upper surface
Side sword (309) upper surface and interior flash sword (310) upper surface are below the highest point of mould (3) upper surface in entire.
6. O-shaped rubber ring injection molding according to claim 5, it is characterised in that: the interior hair of middle mould (3) upper surface
Side slot (311) is connected to by exhaust duct (306) with the area Nei Jiangmian (302)；The outer flash slot (308) of middle mould (3) upper surface
It is connected to by exhaust duct (306) with the area Wai Jiangmian (301).
7. O-shaped rubber ring injection molding according to claim 6, which is characterized in that middle mould (3) upper surface is equipped with three rows
Nine forming tanks (307) of three column arrangements, set that there are four forming tanks around each diffluence pass (304) on middle mould (3) upper surface
(307), each forming tank (307) on middle mould (3) upper surface passes through corresponding two runners (305) and the same diffluence pass
(304) it is connected to；Four diffluence pass (304) on middle mould (3) upper surface, wherein three it is each with corresponding two forming tanks
(307) it is connected to, one of them is connected to corresponding three forming tanks (307).
8. O-shaped rubber ring injection molding according to claim 3, it is characterised in that further include lower installation board (5), under described
Several installation through slots (501) are offered on mounting plate (5), installation through slot (501) of the bolt on lower installation board (5) is afterwards under
The lower surface of mould (4) is threadedly coupled, and the gas vent (303) opened up in the lower die (4) connects with corresponding installation through slot (501)
It is logical.
9. O-shaped rubber ring injection molding according to claim 3, it is characterised in that further include upper transition plates (1), it is described on
Transition plates (1) is placed in the upper surface of upper mold (2), and the upper surface of upper transition plates (1) is fixed with injection seat (101), the injection seat
(101) injection port (1011) for penetrating through injection seat (101) from top to bottom is offered on, is offered at the center of upper transition plates (1)
Run through the clear opening of upper transition plates (1), the lower end of the clear opening and the sprue (201) of upper mold (2) upper surface two from top to bottom
Infall connection, the upper end of the clear opening is connected to the lower end of injection port (1011).
10. a kind of method of O-shaped rubber ring injection molding processing O-shaped rubber ring as described in any one of claims 1-9,
It is characterized in that, comprising the following steps:
Step A: upper mold (2), middle mould (3) and lower die (4) are mounted on rubber injection vulcanizer, barrel temperature is set in 60
~70 DEG C, mold temperature set is injected at 160~180 DEG C；
Step B: pressurization 18~20Mpa molding, sizing material are implanted sequentially upper mold (2), middle mould (3) and lower die by upper transition plates (1)
(4)；
Step C: after vulcanization 3~4 minutes, mold retreats to workbench, stops injection sizing material, by upper mold (2), middle mould (3) and lower die
(4) it separates；
Step D: taking out the product between upper mold (2) and middle mould (3), the product in taking-up between mould (3) and lower die (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811018141.0A CN109177059A (en) | 2018-09-03 | 2018-09-03 | A kind of O-shaped rubber ring injection molding and its method for processing O-shaped rubber ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811018141.0A CN109177059A (en) | 2018-09-03 | 2018-09-03 | A kind of O-shaped rubber ring injection molding and its method for processing O-shaped rubber ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109177059A true CN109177059A (en) | 2019-01-11 |
Family
ID=64917598
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811018141.0A Pending CN109177059A (en) | 2018-09-03 | 2018-09-03 | A kind of O-shaped rubber ring injection molding and its method for processing O-shaped rubber ring |
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| CN114311447A (en) * | 2021-12-01 | 2022-04-12 | 上海森桓新材料科技有限公司 | Rubber seal deckle edge remove device |
| CN114701112A (en) * | 2022-06-06 | 2022-07-05 | 佛山伊之密精密橡胶机械有限公司 | Rubber injection machine |
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| CN208914490U (en) * | 2018-09-03 | 2019-05-31 | 南京金三力高分子科技有限公司 | A kind of O-shaped rubber ring injection molding |
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| CN103302795A (en) * | 2013-05-30 | 2013-09-18 | 苏州明远冲压件厂 | Three-layer type O-shaped rubber ring die |
| CN203267004U (en) * | 2013-05-30 | 2013-11-06 | 苏州明远冲压件厂 | O-shaped rubber ring mold |
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