CN108544719A - Rubber injection mold method containing metal insert and mold - Google Patents
Rubber injection mold method containing metal insert and mold Download PDFInfo
- Publication number
- CN108544719A CN108544719A CN201810454445.5A CN201810454445A CN108544719A CN 108544719 A CN108544719 A CN 108544719A CN 201810454445 A CN201810454445 A CN 201810454445A CN 108544719 A CN108544719 A CN 108544719A
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- China
- Prior art keywords
- mold
- glue groove
- rubber
- excessive glue
- metal insert
- 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.)
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- 239000002184 metal Substances 0.000 title claims abstract description 74
- 238000002347 injection Methods 0.000 title claims abstract description 43
- 239000007924 injection Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000003292 glue Substances 0.000 claims abstract description 150
- 238000001746 injection moulding Methods 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000000717 retained effect Effects 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 abstract description 15
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 14
- 238000000354 decomposition reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2669—Moulds with means for removing excess material, e.g. with overflow cavities
-
- 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
Abstract
A kind of rubber injection mold mold containing metal insert, for carrying out injection molding to the rubber injection mold part being made of the rubber part of the metal insert of annular and annular, the mold includes upper die and lower die, upper mold has the upper mold recessed portion for accommodating metal insert and forms the upper mold glue groove of rubber part, lower die has the lower die boss in the centre bore for penetrating metal insert, in upper mold recessed portion, close to the inner side and outer side of upper mold glue groove, it is respectively arranged with the first excessive glue groove and the second excessive glue groove.The present invention also provides the methods using above-mentioned mold injection.The mold of the present invention is by being arranged the first excessive glue groove and the second excessive glue groove; excessive glue phenomenon can be utilized to be surrounded in the inner side and outer side close to upper mold glue groove and form sealing ring; sealing and automatic size adjusting are done using the waste material of spilling; reduce waste material and flash; and the pith in flash protection mold can also be utilized; such as sliding block, guide post etc. prevents waste material from entering delicate part and causes burn failure.
Description
Technical field
The present invention relates to a kind of injection molding technique and mould applications, especially a kind of rubber note containing metal insert
Molding process and mold.
Background technology
In insert-moulding technique, especially insert-moulding technique is led in the making application of the electronic equipments parts such as mobile phone
In domain, the rubber injection mold forming technique of metal insert is often used, is typically to be pre-placed metal insert in a mold, leads to
Crossing injection molding machine and injecting rubber in a mold makes itself and metal insert form an entirety.
A kind of dimensional structure diagram of the rubber injection mold part containing metal insert is shown in Fig. 1, and Fig. 2 is Fig. 1 institutes
Show the sectional view of part, part 1 is made of metal insert 11 and rubber part 12 shown in Fig. 1 and Fig. 2, and metal insert 11 is annulus
Shape sheet metal, rubber part 12 are similarly loop configuration, are combined closely integrally by Shooting Technique and metal insert 11.Its
In, metal insert 11 and rubber part 12 have same diameter and coaxially arranged centre bore 13.Part shown in Fig. 1-2 is usually adopted
The mold shown in Fig. 3-4 carries out injection molding, wherein the rubber injection mold containing metal insert shown in Fig. 1-2 is shown in Fig. 3
The mold injection decomposition diagram of the common processing technology of part；Fig. 4 is the mold-closing injection status diagram of Fig. 3.Fig. 3-4 is shown
Mold include upper mold 3 and lower die 4, upper mold 3 has the upper mold recessed portion 31 for accommodating metal insert 11 and forms rubber part
12 upper mold glue groove 32, lower die 4 have the lower die boss 43 in the centre bore 13 for penetrating metal insert 11.Certainly, upper mold 3 is also set
Set the structures (not shown)s such as the running channel for being used to form rubber part 12 of connection upper mold glue groove 32.
In the processing technology shown in Fig. 3-4, the depth design of upper mold recessed portion 31 is the height phase with lower die boss 43
Together, the exactly equal to design thickness of metal insert 11, such normal process when, can process just by Shooting Technique
Obtain part 1 shown in Fig. 1-2.However in actual production, metal insert 11 has error because of batches of materials different-thickness, and
Due to cost etc., it is difficult to specially be processed using different molds for the metal insert 11 of different batches, thickness, therefore
The problem of excessive glue can occur.For example, if the thickness of metal insert 11 is less than design thickness, when injection molding, upper mold
The rubber being molded in glue groove 32 can overflow the entire annular upper surface of covering metal insert 11, need to overflow after demoulding more
Remaining rubber removal.Alternatively, if the thickness of metal insert 11 is more than design thickness, upper mold recessed portion 31 and lower die boss 43 it
Between can form gap, the rubber being molded in upper mold glue groove 32 can overflow the centre bore 13 of covering metal insert 11, same after demoulding
Sample needs to remove the extra rubber of spilling.Therefore, when being processed using the mold of Fig. 3-4, excessive glue problem is difficult to prevent, and overflows
The flash gone out needs artificial removal, increases technique, reduces efficiency, the waste material of spilling also results in waste, and overflows useless
Material it is also possible into mold pith, such as sliding block, guide post etc. be easy to cause burn failure.
Invention content
The technical problem to be solved in the present invention is to provide a kind of rubber injection mold method and mold containing metal insert, to subtract
Less or avoid the problem that being formerly mentioned.
Specifically, the present invention provides a kind of rubber injection mold method and mold containing metal insert utilize spilling
Waste material do sealing and automatic size adjusting, while sealing by flash, moreover it is possible to reduce waste material and flash, and can be with profit
The pith in mold, such as sliding block, guide post etc. is protected to prevent waste material from entering delicate part and cause burn failure with flash.
In order to solve the above technical problems, the present invention proposes a kind of rubber injection mold mold containing metal insert, for pair
The rubber injection mold that the rubber part of integral annular of combining closely by the metal insert of annular and with the metal insert is constituted
Part carries out injection molding, and the mold includes upper die and lower die, and the upper mold has the upper mold for accommodating the metal insert recessed
Concave portion and the upper mold glue groove for forming the rubber part, under the lower die has in the centre bore for penetrating the metal insert
Mould boss, wherein in the upper mold recessed portion, close to the inner side and outer side of the upper mold glue groove, be respectively arranged with first and overflow
Glue groove and the second excessive glue groove.
Preferably, the boss glue groove for being directed at the first excessive glue groove setting is provided on the lower die boss.
Preferably, it is solid annular groove that the boss glue groove, which fastens with first excessive glue groove and to form cross section,.
Preferably, the bottom of first excessive glue groove is provided with multiple rubber mounting holes.
Preferably, the second excessive glue groove has opening less than the cross section of its bottom.
Preferably, the cross section of the second excessive glue groove is trapezoidal.
The overflow Cure of Rubber for being preferably located at the boss glue groove and the first excessive glue groove range is the first rubber ring.
Preferably, first rubber ring is connected in upper mold.
The overflow Cure of Rubber for being preferably located at the second excessive glue groove range is the second rubber ring.
Preferably, second rubber ring is connected in upper mold.
The present invention also provides the methods using foregoing mould injection molding, include the following steps：
Step A：Metal insert setting is subjected to mold-closing injection in the mold；
Step B：The rubber being molded in the upper mold glue groove is deliberately set to be spilled over to first excessive glue groove and the second excessive glue groove
In, the spilling rubber retained within the scope of first excessive glue groove and the second excessive glue groove is retained after demoulding；
Step C：The spilling rubber retained using within the scope of first excessive glue groove and the second excessive glue groove is as sealing ring, to institute
It states part and carries out normal injection molding.
Preferably, the step of step B further comprises modifying excessive glue after demoulding, excessive glue, which trims, only protects
Stay the spilling rubber retained within the scope of first excessive glue groove and the second excessive glue groove.
The present invention mold by be arranged close to the inner side and outer side of upper mold glue groove the first excessive glue groove and the second excessive glue groove,
Can utilize excessive glue phenomenon in the inner side and outer side close to upper mold glue groove around forming sealing ring, thus no matter the thickness of metal insert
Degree is also less than design size more than design size, due to the presence of sealing ring, can be formed to the automatic of metal insert size
Adjustment, has prevented the generation of excessive glue completely.Also that is, the mold and injection moulding process of unique design of the present invention, pass through reverse thinking, profit
Sealing and automatic size adjusting are done with the waste material of spilling, reduces waste material and flash, and flash can also be utilized to protect mold
In pith, such as sliding block, guide post etc. prevents waste material from entering delicate part and causes burn failure.
Description of the drawings
The following drawings are only intended to schematically illustrate and explain the present invention, not delimit the scope of the invention.Wherein,
A kind of dimensional structure diagram of the rubber injection mold part containing metal insert is shown in Fig. 1；
Fig. 2 is the sectional view of part shown in Fig. 1；
The mold note of the common processing technology of the rubber injection mold part containing metal insert shown in Fig. 1-2 is shown in Fig. 3
Mould decomposition diagram；
Fig. 4 is the mold-closing injection status diagram of Fig. 3；
The mould of the rubber injection mold part containing metal insert of a specific embodiment according to the present invention is shown in Fig. 5
Tool injection molding decomposition diagram；
Fig. 6 is the mold-closing injection status diagram of Fig. 5；
Fig. 7 is the mold injection decomposition perspective view of Fig. 5；
The Cure of Rubber for overflowing to the first overflow launder direction of a specific embodiment according to the present invention is shown in Fig. 8
Dimensional structure diagram afterwards；
The rubber for overflowing to the second overflow launder direction that another specific embodiment according to the present invention is shown in Fig. 9 is solid
Dimensional structure diagram after change.
Specific implementation mode
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control illustrates this hair
Bright specific implementation mode.Wherein, identical component uses identical label.
Described in background technology part, it is similar to the rubber injection mold part containing metal insert shown in Fig. 1-2 and uses
When common processing technology injection molding, since the thickness difference of metal insert is there are the defect of excessive glue, cause after demoulding not
Burr removal must be taken no action to, increases the problem of process reduces efficiency and excessive glue waste, the present invention proposes one kind
Improved Shooting Technique and mold, as illustrated in figs. 5-7.Wherein, a specific embodiment according to the present invention is shown in Fig. 5
The mold injection decomposition diagram of rubber injection mold part containing metal insert；Fig. 6 is the mold-closing injection status diagram of Fig. 5；
Fig. 7 is the mold injection decomposition perspective view of Fig. 5.In order to indicate clear in figure, the upper die and lower die in Fig. 5 and Fig. 6 are eliminated
Hatching is understood with reducing excessive lines and interfering, but those skilled in the art are referred to the section view state of Fig. 3 and Fig. 4
Understand the section view state of the upper die and lower die of Fig. 5 and Fig. 6.
Referring to attached drawing 5-7, present invention is equally related to a kind of rubber injection mold mold containing metal insert, it is especially suitable for
To carrying out injection molding, certainly, those skilled in the art similar to the rubber injection mold part containing metal insert shown in Fig. 1-2
It should be appreciated that meeting other similar rubber injection mold parts containing metal insert of following injection molding principles of the present invention, also fit
Mold and injection moulding process for the present invention.
Specifically, mold of the invention can be used for combining closely by annular metal insert 11 and with metal insert 11
The rubber injection mold part 1 that the rubber part 12 of integral annular is constituted carries out injection molding, wherein one according to the present invention
The mold of specific embodiment includes upper mold 3 and lower die 4, and upper mold 3 has the upper mold recessed portion 31 and shape for accommodating metal insert 11
At the upper mold glue groove 32 of rubber part 12, lower die 4 has the lower die boss 43 penetrated in the centre bore 13 of metal insert 11, and normal
Unlike injection mold, in a specific embodiment of the present invention, in upper mold recessed portion 31, close in upper mold glue groove 32
Side and outside are respectively arranged with the first excessive glue groove 34 and the second excessive glue groove 35.
Certainly, it will be appreciated by those skilled in the art that the present invention metal insert 11 can be as shown in Figs. 1-2 annular,
Can also be other shapes of annular element, such as metal insert 11 can be the annular element of rectangular or other polymorphic structures, only
That wants can be arranged the first excessive glue groove 34 and the second excessive glue groove 35 there is annular element may be incorporated for the present invention.
In another specific embodiment, the first excessive glue groove 34 of alignment can also be further set on lower die boss 43 and set
The boss glue groove 44 set.
Further, it is solid annular groove that boss glue groove 44 and the first excessive glue groove 34, which can fasten and to form cross section,.Separately
Outside, can also multiple rubber mounting holes 341 preferably be set in the bottom of the first excessive glue groove 34, in specific embodiment shown in Fig. 7,
There are four the rubber mounting holes 341 being equidistantly spaced from for the bottom setting of first excessive glue groove 34.
In another specific embodiment, the second excessive glue groove 35 has opening less than the cross section of its bottom.More specifically,
The cross section of second excessive glue groove 35 can be the opening that trapezoidal, trapezoidal short side part is the second excessive glue groove 35, trapezoidal long side
Part is the bottom of the second excessive glue groove 35.
Referring to the operation principle and injection moulding process of Fig. 5-7 molds further illustrated the present invention.As illustrated in figs. 5-7,
Mold and the prior art of the present invention are most basic, and difference lies in the upper mold recessed portion 31 of the mold of the present invention, close to upper
The inner side and outer side of mould glue groove 32 is respectively arranged with the first excessive glue groove 34 and the second excessive glue groove 35.
When the mold of the present invention carries out injection molding, it is assumed that generation excessive glue phenomenon (the problem of due to manufacturing tolerance,
Excessive glue phenomenon can not almost avoid, and some excessive glues more or less always occur), for example, it is assumed that excessive glue is due to metal insert 11
Thickness be more than design thickness, then rubber can be to 13 overflow of centre bore of metal insert 11.At this point, since the present invention is close to upper
The inside of mould glue groove 32 is provided with the first excessive glue groove 34, and the rubber overflowed from upper mold glue groove 32 to centre can directly be filled in first
In excessive glue groove 34.Certainly, the boss glue groove 44 of alignment the first excessive glue groove 34 setting is further provided on lower die boss 43
In the case of, the rubber overflowed from upper mold glue groove 32 to centre also can be directly filled in boss glue groove 44.Due to boss glue groove 44
It is in alignment with the first excessive glue groove 34, therefore close up the region to be formed in the two can all fill overflow rubber.Further, when
In the case that the bottom of one excessive glue groove 34 is provided with multiple rubber mounting holes 341, the inside of these rubber mounting holes 341 can also be filled out
Exuberant stream rubber.After being filled into the overflow Cure of Rubber in boss glue groove 44 and the first excessive glue groove 34 and rubber mounting hole 341
Shape can intuitively show in fig. 8 that a specific embodiment according to the present invention is shown overflows to the first overflow
Dimensional structure diagram after the Cure of Rubber in slot direction is shown in figure, is located at 34 range of boss glue groove 44 and the first excessive glue groove
Overflow Cure of Rubber be section be circular first rubber ring 54, be located at the overflow Cure of Rubber of 341 range of rubber mounting hole
To be connected as integrally-built column-shaped projection 541 with the first rubber ring 54.Certainly, boss glue groove 44 and the first excessive glue groove are depended on
The difference of 34 sectional dimension, the section after overflow Cure of Rubber can also be other shapes, such as trapezoidal, triangle etc..
Or assume that excessive glue is since the thickness of metal insert 11 is less than design thickness, then rubber can be to metal insert 11
Annular upper surface overflow.At this point, since the present invention in the outside close to upper mold glue groove 32 is provided with the second excessive glue groove 35, from upper mold
The rubber that glue groove 32 is overflowed outward can be directly filled in the second excessive glue groove 35.Further, when the cross of the second excessive glue groove 35
When section is trapezoidal, the shape after the overflow Cure of Rubber being filled into the second excessive glue groove 35 can intuitively be shown in fig.9, be shown
Show be another specific embodiment according to the present invention the Cure of Rubber for overflowing to the second overflow launder direction after three-dimensional knot
Structure schematic diagram has carried out disconnecting display in Fig. 9, has been shown in figure, be located at 44 range of the second excessive glue groove to show its cross sectional shape
Overflow Cure of Rubber be section be trapezoidal the second rubber ring 55.
Under normal conditions, excessive glue is useless, needs additionally to remove.And present invention employs a kind of reverse thinking moulds
Formula, is deliberately arranged the first excessive glue groove 34 and the second excessive glue groove 44, and deliberately when initial injection molding by excessive glue in upper mold
The inside of glue groove 32 forms the first rubber ring 54, the second rubber ring 55 is formed in the outside of upper mold glue groove 32, to pass through first
Rubber ring 54 and the second rubber ring 55 form sealing structure around upper mold glue groove 32.After initial injection molding is completed, due to the
One rubber ring 54, which has, is connected as integrally-built column-shaped projection 541, and column-shaped projection 541 is stuck in rubber mounting hole 341 and provides
And outer frictional force, therefore when demould, the first rubber ring 54 can be connected in upper mold 3.Likewise, due to the second rubber
Ring 55 is trapezoid cross section, and demoulding when, which can be stuck in, to be open in the second small excessive glue groove 35, therefore the second rubber ring 55 can also connect
It is connected in upper mold 3.The first rubber ring 54 and the second rubber ring 55 being connected in upper mold 3 not reject at this time, be retained in upper mold 3
On, as next time, the sealing strip of injection molding uses.
When second of injection molding, new metal insert 11 is put into mold, due to the first rubber ring 54 and second after molding
The presence of rubber ring 55 can all surround in the inner side and outer side close to upper mold glue groove 32 and form sealing ring, therefore no matter metal is embedding
The thickness of part 11 is also less than design size more than design size, due to the presence of sealing ring, can be formed to metal insert ruler
Very little adjust automatically has prevented the generation of excessive glue completely.Also that is, the mold and injection moulding process of unique design of the present invention, by inverse
To thinking, sealing and automatic size adjusting are done using the waste material of spilling, reduces waste material and flash, and flash can also be utilized
The pith in mold, such as sliding block, guide post etc. is protected to prevent waste material from entering delicate part and cause burn failure.
Below for the explanation of above-mentioned specific embodiment, to the rubber injection mold method containing metal insert of the present invention into
One step is summarized as follows, that is, the method for the present invention includes following steps：
Step A：Metal insert 11 is set in the mold carry out mold-closing injection.
Step B：Deliberately the rubber being molded in upper mold glue groove 32 is made to be spilled over in the first excessive glue groove 34 and the second excessive glue groove 35,
Retain the spilling rubber retained in 35 range of the first excessive glue groove 34 and the second excessive glue groove after demoulding.
Step C：The spilling rubber retained using in 35 range of the first excessive glue groove 34 and the second excessive glue groove is as sealing ring, to zero
Part 1 carries out normal injection molding.
Wherein, the step of being modified to excessive glue after demoulding is can further include in step B, excessive glue, which trims, only protects
The spilling rubber retained in 35 range of the first excessive glue groove 34 and the second excessive glue groove is stayed, finishing is carried out for remaining useless part
It removes, just occurs excessive glue flash never again when subsequently normally injection molding in this way.
In addition, step B is the initial step of injection molding, rather than the step of formal injection molding, the effect of this step is to pass through note
It is moulding at 54 and second rubber ring 55 of the first rubber ring above-mentioned, used as subsequent sealing ring.Because determining to be formed
Sealing ring then has to that excessive glue phenomenon occurs in initial injection step, for example, can deliberately select size relatively thin or compared with
Thick metal insert 11, which is put into mold, to be initially molded, or when initial injection molding, between upper mold 3 and lower die 4
It is deliberately formed gap by cushion block etc., to deliberately cause excessive glue.And the prior art is in order to avoid excessive glue, being certainly will not be such as this
Invention equally deliberately allows excessive glue, and therefore, injection moulding process of the invention is entirely reverse thinking, with those skilled in the art's
Thoughtcast is antipodal, and obtains sealing ring using originally unfavorable excessive glue phenomenon, is subsequent injection molding
The basis for preventing excessive glue is constructed, right and wrong are it will be apparent that have substantive distinguishing features outstanding for a person skilled in the art
And significant progress, have creativeness.
In conclusion the mold of the present invention can utilize excessive glue phenomenon by the way that the first excessive glue groove and the second excessive glue groove is arranged
It is surrounded in the inner side and outer side close to upper mold glue groove and forms sealing ring, therefore no matter the thickness of metal insert is more than design size also
It is less than design size, due to the presence of sealing ring, the adjust automatically to metal insert size can be formed, has prevented to overflow completely
The generation of glue.
It will be appreciated by those skilled in the art that although the present invention is described in the way of multiple embodiments,
It is that not each embodiment only contains an independent technical solution.So narration is used for the purpose of for the sake of understanding in specification,
The skilled in the art should refer to the specification as a whole is understood, and by technical solution involved in each embodiment
Regard as and can be combined with each other into the mode of different embodiments to understand protection scope of the present invention.
The foregoing is merely the schematical specific implementation modes of the present invention, are not limited to the scope of the present invention.It is any
Those skilled in the art, do not depart from the design of the present invention and under the premise of principle made by equivalent variations, modification and combination,
The scope of protection of the invention should all be belonged to.
Claims (8)
1. a kind of rubber injection mold mold containing metal insert, for by annular metal insert (11) and with the metal it is embedding
The combine closely rubber injection mold part (1) that constitutes of rubber part (12) of integral annular of part (11) carries out injection molding, institute
It includes upper mold (3) and lower die (4) to state mold, and the upper mold (3) has the upper mold recessed portion for accommodating the metal insert (11)
(31) and the upper mold glue groove (32) of the rubber part (12) is formed, the lower die (4), which has, penetrates the metal insert
(11) the lower die boss (43) in centre bore (13), which is characterized in that in the upper mold recessed portion (31), close on described
The inner side and outer side of mould glue groove (32) is respectively arranged with the first excessive glue groove (34) and the second excessive glue groove (35).
2. the rubber injection mold mold containing metal insert as described in claim 1, which is characterized in that in the lower die boss
(43) the boss glue groove (44) for being directed at the first excessive glue groove (34) setting is provided on.
3. the rubber injection mold mold containing metal insert as claimed in claim 2, which is characterized in that the boss glue groove (44)
It is solid annular groove to be fastened with first excessive glue groove (34) and form cross section.
4. the rubber injection mold mold containing metal insert as claimed in claim 2 or claim 3, which is characterized in that first excessive glue
The bottom of slot (34) is provided with multiple rubber mounting holes (341).
5. the rubber injection mold mold containing metal insert as described in one of claim 1-3, which is characterized in that the second excessive glue groove
(35) have opening less than the cross section of its bottom.
6. the rubber injection mold mold containing metal insert as claimed in claim 5, which is characterized in that the second excessive glue groove (35)
Cross section is trapezoidal.
7. a kind of method using the mold injection described in one of claim 1-6 includes the following steps：
Step A：The metal insert (11) setting is subjected to mold-closing injection in the mold；
Step B：Deliberately make the rubber being molded in the upper mold glue groove (32) be spilled over to first excessive glue groove (34) and second to overflow
In glue groove (35), the spilling rubber retained in first excessive glue groove (34) and the second excessive glue groove (35) range is retained after demoulding；
Step C：The spilling rubber retained using in first excessive glue groove (34) and the second excessive glue groove (35) range as sealing ring,
Normal injection molding is carried out to the part (1).
8. the method for claim 7, which is characterized in that the step B carries out excessive glue after further comprising demoulding
The step of finishing, excessive glue trim the spilling for only retaining and being retained in first excessive glue groove (34) and the second excessive glue groove (35) range
Rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810454445.5A CN108544719B (en) | 2018-05-14 | 2018-05-14 | Rubber injection molding method and mold containing metal inserts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810454445.5A CN108544719B (en) | 2018-05-14 | 2018-05-14 | Rubber injection molding method and mold containing metal inserts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108544719A true CN108544719A (en) | 2018-09-18 |
| CN108544719B CN108544719B (en) | 2023-12-22 |
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| CN201810454445.5A Active CN108544719B (en) | 2018-05-14 | 2018-05-14 | Rubber injection molding method and mold containing metal inserts |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111904665A (en) * | 2020-07-22 | 2020-11-10 | 四川大学 | Bone increment auxiliary system, design method and bone increment auxiliary device |
| CN113459417A (en) * | 2021-07-08 | 2021-10-01 | 袁志兵 | Production die for inner die and outer die of environment-friendly equipment |
| CN114670374A (en) * | 2022-04-08 | 2022-06-28 | 成都希瑞方晓科技有限公司 | Forming die for sealing rubber cap |
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| JP2006027092A (en) * | 2004-07-16 | 2006-02-02 | Imoto Seiki:Kk | Mold for molding rubber molded product without burr and requiring no finishing |
| JP2007022046A (en) * | 2005-07-21 | 2007-02-01 | Bridgestone Corp | Mold for o-ring |
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| CN113459417A (en) * | 2021-07-08 | 2021-10-01 | 袁志兵 | Production die for inner die and outer die of environment-friendly equipment |
| CN114670374A (en) * | 2022-04-08 | 2022-06-28 | 成都希瑞方晓科技有限公司 | Forming die for sealing rubber cap |
| CN114670374B (en) * | 2022-04-08 | 2023-10-24 | 成都希瑞方晓科技有限公司 | Sealing rubber cap forming die |
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