CN110406008A - Polytetrafluoroethyloil oil seals mold - Google Patents
Polytetrafluoroethyloil oil seals mold Download PDFInfo
- Publication number
- CN110406008A CN110406008A CN201910705278.1A CN201910705278A CN110406008A CN 110406008 A CN110406008 A CN 110406008A CN 201910705278 A CN201910705278 A CN 201910705278A CN 110406008 A CN110406008 A CN 110406008A
- Authority
- CN
- China
- Prior art keywords
- mold core
- mold
- lower die
- lips
- upper mold
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 34
- 238000004513 sizing Methods 0.000 claims description 34
- 238000003780 insertion Methods 0.000 claims description 18
- 230000037431 insertion Effects 0.000 claims description 18
- 238000000465 moulding Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 17
- 238000012856 packing Methods 0.000 claims description 13
- 239000011324 bead Substances 0.000 claims description 9
- 230000014759 maintenance of location Effects 0.000 claims description 9
- 239000000155 melt Substances 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000012797 qualification Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 38
- 238000007789 sealing Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 229940058401 polytetrafluoroethylene Drugs 0.000 description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 description 5
- 230000002146 bilateral effect Effects 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding 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
- B29C45/02—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
-
- 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
- B29C45/14065—Positioning or centering articles in the mould
-
- 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
- B29C45/14467—Joining articles or parts of a single 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
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
-
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- 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
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14122—Positioning or centering articles in the mould using fixed mould wall projections for centering the insert
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of polytetrafluoroethyloil oil seals molds, skeleton and lips are equipped in polytetrafluoroethyloil oil seals, it includes upper die and lower die, upper mold core assembly and lower die core assembly, the upper mold core assembly includes upper mold core and upper die head, the upper mold core is connected in upper mold and is equipped with lug boss, and the upper die head is connected on the lug boss；The lower die core assembly includes lower mold core and sliding mold core, and the lower mold core is connected in the lower die, and the sliding mold core is slidably connected in the lower mold core, is formed with cavity between the lower mold core and sliding mold core；The upper end of the sliding mold core is equipped with for abutting the auxiliary section for being adapted to the position with the fixation skeleton in cavity, and the lips station for placing the lips with the skeleton.The present invention can quickly produce polytetrafluoroethyloil oil seals, improve formed precision, improve product quality and qualification rate, can once produce multiple polytetrafluoroethyloil oil seals, improve production efficiency, and structure is simple, at low cost.
Description
Technical field
The present invention relates to a kind of polytetrafluoroethyloil oil seals molds.
Background technique
Currently, oil sealing is the general designation to rotary shaft lip rubber seal and reciprocating motion rubber seal, oil sealing is weight
The mechanical part wanted makes that leakage does not occur so that influence mechanical lubrication and pollution environment blocking lubricating oil or lubricating grease, because
This oil sealing is a kind of very important functional mechanical component.Wherein, polytetrafluoroethyloil oil seals are widely used a kind of oil sealings,
It includes skeleton and the lips made of polytetrafluoroethylene (PTFE), is wrapped up the skeleton and part lips to be formed by sizing material
Oil sealing reaches good sealing effect.But skeleton and lips make the structure of polytetrafluoroethyloil oil seals increasingly complex, and
The location difficulty of skeleton and lips causes the production of polytetrafluoroethyloil oil seals very difficult, raw using mold in the prior art
Design requirement is often not achieved in the structural parameters for the polytetrafluoroethyloil oil seals that output is come, and influences product quality, even results in sealing
Failure.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of existing technologies, a kind of polytetrafluoroethyloil oil seals mould is provided
Tool, it can quickly produce polytetrafluoroethyloil oil seals, improve formed precision, improve product quality and qualification rate, can be one secondary
Multiple polytetrafluoroethyloil oil seals are produced, improve production efficiency, and structure is simple, it is at low cost.
In order to solve the above-mentioned technical problem, the technical scheme is that a kind of polytetrafluoroethyloil oil seals mold, polytetrafluoro
The skeleton being partly or entirely wrapped in sizing material and lips are equipped in ethylene oil sealing, it includes upper die and lower die, multiple upper mold core groups
Part and with the one-to-one lower die core assembly of the upper mold core assembly, wherein
The upper mold core assembly includes upper mold core and upper die head, and the upper mold core is connected in the upper mold and is equipped with lug boss,
The upper die head is connected on the lug boss；
The lower die core assembly includes lower mold core and sliding mold core, and the lower mold core is connected in the lower die, the sliding die
Core is slidably connected in the lower mold core, is formed with cavity between the lower mold core and sliding mold core；
The upper end of the sliding mold core is equipped with for abutting the position being adapted to the fixation skeleton in cavity with the skeleton
The auxiliary section set；
The upper end of the sliding mold core is additionally provided with the lips station for placing the lips；
When upper die and lower die molding, the lug boss and the upper die head are protruded into corresponding cavity, on described
Die head pushes down the lips on the lips station, and surrounds formation jointly for inserting with lug boss, lower mold core and sliding mold core
For sizing material to form the forming cavities of the polytetrafluoroethyloil oil seals, the outside portion of the lips and the skeleton are respectively positioned on the molding
In chamber.
Further for the stronger of the lips connection is made, the upper end of the sliding mold core is additionally provided with and the molding
The packing cavity of chamber connection；
The top of the outside portion of lips on the lips station is connected to the forming cavity；
The lower section of the outside portion is connected to the packing cavity, so that the sizing material wraps the top of the outside portion of the lips
The lower section and.
Further for enabling the sizing material in forming cavity to smoothly enter in the packing cavity, the skeleton is socketed in described
On auxiliary section, the feed space for being connected to the forming cavity and the packing cavity is formed between the skeleton and the auxiliary section
Gap.
Further for preventing sizing material from leaking, the sliding mold core and the upper die head are respectively positioned on described on horizontal cross-section
The central part of cavity；
The upper edge positioned at the cavity, and the raw material placement section for placing sizing material raw material are equipped in the cavity, with
When the box lunch sizing material raw material melts and flow at the lips, the upper die head has pushed down the lips.
Further, the lower end of the upper die head is equipped with for pushing down the lips when upper die and lower die molding
Bulge loop.
Further, the upper mold is equipped with goes up pilot hole with the upper mold core correspondingly；
The upper mold core is bolted in the upper pilot hole in corresponding upper pilot hole and through connection；
The lug boss of the upper mold core is equipped with the mounting hole that the upper die head is connected for close-fitting.
Further, the lower die is equipped with descends pilot hole with the lower mold core correspondingly, and the lower pilot hole includes
Department of assembly and pass through portion with what the department of assembly was connected to；
The lower mold core is in the department of assembly of corresponding lower pilot hole；
The sliding mold core slide fit is in the lower mold core and extending to described by portion；
Also be threaded with multiple fixing screws in the lower die, the head of a nail of each fixing screws at least with one it is described under
The upper end of mold core offsets, to be fixed in the lower die with its lower mold core to offset.
Further for the sliding scale for limiting the sliding mold core, the lower end of the lower mold core is equipped with retention bead；
The upper end of the sliding mold core is equipped with abutting part, and the lower end of the sliding mold core is equipped with circlip, so as to when described
When sliding mold core slides into bottom, the abutting part and the retention bead are offseted and are continued with limit slippage mold core to downslide
Dynamic, when the sliding mold core slides into the top, the circlip and the retention bead offset with the continuation of limit slippage mold core
Upward sliding.
Further, when dividing mould in order to separate upper die and lower die smoothly, the polytetrafluoroethyloil oil seals mold further includes
At least one divides mould spring and divides mould spring one-to-one spring base with described, wherein
The spring base is connected in any one in the upper mold and the lower die；
The one end of described point of mould spring is connected on the spring base；
The other end of the spring is used for for offseting with residue one in the upper mold and the lower die when described
When mould and lower die divide mould, drive the upper die and lower die backwards to movement.
Further for guidance upper die and lower die molding, the polytetrafluoroethyloil oil seals mold further includes described for guiding
The guiding device of upper mold and lower die molding, the guiding mechanism include at least one first guiding mechanism and at least one the
Two guiding mechanisms, wherein
First guiding mechanism include the first guide post and with one-to-one first guide sleeve of first guide post,
In,
First guide sleeve is connected in any one in the upper mold and the lower die；
The fixing end of first guide post is connected on the residue in the upper mold and the lower die one, first guiding
The insertion end of column is used to protrude into corresponding first guide sleeve when upper die and lower die molding to guide upper die and lower die to close
Mould；
Second guiding mechanism include the second guide post and with one-to-one second guide sleeve of second guide post,
In,
Second guide sleeve is connected in any one in the upper mold and the lower die；
The fixing end of second guide post is connected on the residue in the upper mold and the lower die one, second guiding
The insertion end of column is used to protrude into corresponding second guide sleeve when upper die and lower die molding to guide upper die and lower die to close
Mould；
The insertion end of first guide post is longer than the insertion end of second guide post；
The insertion end of first guide post is pyramidal structure, and the insertion end of second guide post is hemispherical dome structure.
After above-mentioned technical proposal, lips is first placed on the lips station on the sliding mold core, then by bone
Frame is socketed on the auxiliary section on the sliding mold core, then sizing material raw material is placed on to the raw material placement section in the cavity；When
When the upper die and lower die mold, the lug boss and upper die head are protruded into cavity, and then the sizing material raw material is heated thawing,
And it is pressed into the forming cavity and the packing cavity, and be shaped to the polytetrafluoroethyloil oil seals, wherein in the sizing material stream
When to the lips, the upper die head has pushed down the lips, prevents sizing material from leaking；Then the upper die and lower die divide mould
Afterwards, the polytetrafluoroethyloil oil seals of stating are located in the cavity, jack up the sliding mold core upwards to remove the polytetrafluoro
Ethylene oil sealing.It realizes and quickly produces the polytetrafluoroethyloil oil seals, can once produce multiple, improve production efficiency, and
And this mould and die accuracy is high, structure is simple, greatly reduces manufacture and rigging error, improves formed precision, improves product matter
Amount and qualification rate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of polytetrafluoroethyloil oil seals mold of the invention；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is the partial structural diagram of polytetrafluoroethyloil oil seals mold of the invention；
Fig. 4 is the structural schematic diagram of the forming cavity of polytetrafluoroethyloil oil seals mold of the invention；
Fig. 5 is the structural schematic diagram of upper mold of the invention；
Fig. 6 is the B-B cross-sectional view of Fig. 5；
Fig. 7 is the structural schematic diagram of lower die of the invention；
Fig. 8 is the C-C cross-sectional view of Fig. 7.
Specific embodiment
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing
The present invention is described in further detail.
As shown in Fig. 1 ~ 4, a kind of polytetrafluoroethyloil oil seals mold is equipped with partly or entirely package in polytetrafluoroethyloil oil seals
Skeleton 1 and lips 2 in sizing material, it include upper mold 3, lower die 4, multiple upper mold core assemblies and with the upper mold core assembly one by one
Corresponding lower die core assembly, wherein
The upper mold core assembly includes upper mold core 5 and upper die head 6, and the upper mold core 5 is connected in the upper mold 3 and is equipped with protrusion
Portion 7, the upper die head 6 are connected on the lug boss 7；
The lower die core assembly includes lower mold core 8 and sliding mold core 9, and the lower mold core 8 is connected in the lower die 4, the cunning
Moving-mould-core 9 is slidably connected in the lower mold core 8, is formed with cavity 10 between the lower mold core 8 and sliding mold core 9；
The upper end of the sliding mold core 9 is equipped with for being adapted to the skeleton 1 abutting with the fixation skeleton 1 in cavity 10
Position auxiliary section 11；
The upper end of the sliding mold core 9 is additionally provided with the lips station for placing the lips 2；
When the upper mold 3 and lower die 4 mold, the lug boss 7 and the upper die head 6 are protruded into corresponding cavity 10, so as to
The upper die head 6 pushes down the lips 2 on the lips station, and surrounds shape jointly with lug boss 7, lower mold core 8 and sliding mold core 9
At the forming cavity 12 for forming the polytetrafluoroethyloil oil seals for inserting sizing material, the outside portion of the lips 2 and the skeleton 1
It is respectively positioned in the forming cavity 12；In the present embodiment, the skeleton 1 is completely encapsulated in the sizing material, 2 part of lips
It is wrapped in the sizing material, the lips station is located at the top of the sliding mold core 9, and the skeleton 1 and the lips 2 are
Ring structure, the lips 2 are made of polytetrafluoroethylene (PTFE), and the sizing material can be rubber.Specifically, upper mold core assembly and lower die
Core assembly is equipped with 9 rows 9 and arranges totally 81.
As shown in Fig. 1 ~ 4, the upper end of the sliding mold core 9 is additionally provided with the packing cavity 13 being connected to the forming cavity 12；
The top of the outside portion of lips 2 on the lips station is connected to the forming cavity 12；
The lower section of the outside portion is connected to the packing cavity 13, so that the sizing material wraps the outside portion of the lips 2
Above and below, it is connected on the polytetrafluoroethyloil oil seals so that the lips 2 is stronger.
As shown in Fig. 2 ~ 4, the skeleton 1 is socketed on the auxiliary section 11, between the skeleton 1 and the auxiliary section 11
It is formed with the charging gap for being connected to the forming cavity 12 and the packing cavity 13；Specifically, the sizing material is from the charging
Gap enters in the packing cavity 13, and then makes to be wrapped in the sizing material above and below the lips 2.
As shown in Fig. 2 ~ 4, the sliding mold core 9 and the upper die head 6 are respectively positioned on the cavity 10 on horizontal cross-section
Central part；
The upper edge positioned at the cavity 10, and the raw material placement section for placing sizing material raw material are equipped in the cavity 10
14, so that when the sizing material raw material melts and flow at the lips 2, the upper die head 6 has pushed down the lips 2, with
Prevent sizing material from leaking, the purpose designed in this way is to increase the distance between sizing material raw material and the lips 2, the sizing material raw material
For ring structure.
As shown in Figure 3,4, the lower end of the upper die head 6 can be equipped with for when the upper mold 3 and lower die 4 molding when,
The bulge loop 15 of the lips 2 is pushed down, to be compacted the lips 2.
It can be equipped with as shown in Fig. 2 ~ 6, in the upper mold 3 and the one-to-one upper pilot hole 16 of the upper mold core 5；
The upper mold core 5 is connected to the upper pilot hole 16 in corresponding upper pilot hole 16 and by connecting bolt 17
In, close-fitting connects between the upper mold core 5 and the upper pilot hole 16, and magnitude of interference is bilateral 0.01 ~ 0.02mm；
The lug boss 7 of the upper mold core 5 is equipped with the mounting hole that the upper die head 6 is connected for close-fitting, in the present embodiment, institute
Stating magnitude of interference between upper die head 6 and the mounting hole is bilateral 0.01 ~ 0.02mm, the upper end of the upper mold core 5 be equipped with
The threaded hole that the connection bolt 17 is adapted to.
It can be equipped with as shown in Fig. 1,2,3,7,8, in the lower die 4 and descend pilot hole correspondingly with the lower mold core 8,
The lower pilot hole include department of assembly 18 and be connected to the department of assembly 18 by portion 19；
The lower mold core 8 is in the department of assembly 18 of corresponding lower pilot hole, between the lower mold core 8 and the department of assembly 18
Close-fitting connection, magnitude of interference are bilateral 0.01 ~ 0.02mm；
9 slide fit of sliding mold core is in the lower mold core 8 and extending to described by portion 19；
Also be threaded with multiple fixing screws 20 in the lower die 4, the head of a nail of each fixing screws 20 at least with one
The upper end of the lower mold core 8 offsets, to be fixed in the lower die 4 with its lower mold core 8 to offset, in the present embodiment
In, the fixing screws 20 are equipped with 25, and the upper end of each fixing screws 20 and four lower mold cores 8 offsets.
As shown in Figure 2,3, the lower end of the lower mold core 8 is equipped with retention bead 21；
The upper end of the sliding mold core 9 is equipped with abutting part 22, and the lower end of the sliding mold core 9 is equipped with circlip 23, so as to
When the sliding mold core 9 slides into bottom, the abutting part 22 offsets with the retention bead 21 with limit slippage mold core 9
Continue slide downward, when the sliding mold core 9 slides into the top, the circlip 23 offsets with the retention bead 21 to limit
System sliding mold core 9 continues to slide up；Specifically, can be stayed in the cavity 10 after the polytetrafluoroethyloil oil seals molding, this
When jack up the sliding mold core 9 upwards, and then polytetrafluoroethyloil oil seals are jacked up, convenient for removing.
As shown in Figure 1, 2, the polytetrafluoroethyloil oil seals mold further include at least one divide mould spring 24 and with described point
The one-to-one spring base 25 of mould spring 24, wherein
The spring base 25 is connected in any one in the upper mold 3 and the lower die 4；
The one end of described point of mould spring 24 is connected on the spring base 25；
The other end of the spring is used for for offseting with residue one in the upper mold 3 and the lower die 4 when described
When upper mold 3 and lower die 4 divide mould, drive the upper mold 3 and lower die 4 backwards to movement；In the present embodiment, described to divide mould spring 24 He
Spring base 25 is equipped with 4, and the spring base 25 is fixedly connected in the upper mold 3 by screw, the upper end of the spring
In welding and the spring base 25, as the upper mold 3 and lower die 4 and Mo Shi, the lower end of the spring and 4 phase of lower die
It supports, after the upper mold 3 and lower die 4 divide mould, the spring is detached from the lower die 4, specifically, in the upper mold 3 and lower die 4 also
Equipped with for the spring eye for dividing mould spring 24 and spring base 25 to be arranged.
As shown in Figure 1, 2, the polytetrafluoroethyloil oil seals mold further includes for guiding the upper mold 3 and the lower die 4
The guiding device of molding, the guiding mechanism may include at least one first guiding mechanism 100 and at least one second guiding
Mechanism 200, wherein
Such as, but not limited to flowering structure, it includes the first guide post 26 and leads with described first first guiding mechanism 100
To one-to-one first guide sleeve 27 of column 26, wherein
First guide sleeve 27 is connected in any one in the upper mold 3 and the lower die 4；
The fixing end of first guide post 26 is connected on residue one in the upper mold 3 and the lower die 4, and described first
The insertion end of guide post 26 is used to protrude into corresponding first guide sleeve 27 in guidance when the upper mold 3 and the molding of lower die 4
Mould 3 and lower die 4 mold；
Such as, but not limited to flowering structure, it includes the second guide post 28 and leads with described second second guiding mechanism 200
To one-to-one second guide sleeve 29 of column 28, wherein
Second guide sleeve 29 is connected in any one in the upper mold 3 and the lower die 4；
The fixing end of second guide post 28 is connected on residue one in the upper mold 3 and the lower die 4, and described second
The insertion end of guide post 28 is used to protrude into corresponding second guide sleeve 29 in guidance when the upper mold 3 and the molding of lower die 4
Mould 3 and lower die 4 mold；
The insertion end of first guide post 26 is longer than the insertion end of second guide post 28；
The insertion end of first guide post 26 is pyramidal structure, and the insertion end of second guide post 28 is hemispherical dome structure.
In the present embodiment, first guide post 26 and the equal close-fitting of second guide post 28 are connected in the upper mold 3, and described
One guide sleeve 27 and the equal close-fitting of second guide sleeve 29 are connected in the lower die 4, first guiding mechanism 100 and second
Guiding mechanism 200 is respectively provided with 4.
Working principle of the present invention is as follows:
Lips 2 is first placed on the lips station on the sliding mold core 9, then skeleton 1 is socketed on the sliding mold core 9
Auxiliary section 11 on, then sizing material raw material is placed on the raw material placement section 14 in the cavity 10；When the upper mold 3 and lower die 4
When molding, the lug boss 7 and upper die head 6 are protruded into cavity 10, and then the sizing material raw material is heated thawing, and is pressed into institute
It states in forming cavity 12 and the packing cavity 13, and is shaped to the polytetrafluoroethyloil oil seals, wherein flow in the sizing material described
When at lips 2, the upper die head 6 has pushed down the lips 2, prevents sizing material from leaking；Then the upper mold 3 and lower die 4 divide mould
Afterwards, the polytetrafluoroethyloil oil seals of stating are located in the cavity 10, jack up the sliding mold core 9 upwards to remove described poly- four
Vinyl fluoride oil sealing.It realizes and quickly produces the polytetrafluoroethyloil oil seals, can once produce multiple, improve production efficiency,
And this mould and die accuracy is high, and structure is simple, greatly reduces manufacture and rigging error, improves formed precision, improves product
Quality and qualification rate.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effects carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this
Invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this hair
Within bright protection scope.
In the description of the present invention, it is to be understood that, indicating position or the term of positional relationship are based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than the equipment of indication or suggestion meaning
Or element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It has to fully horizontally, but can be slightly tilted.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be on or below second feature
Directly contacted including the first and second features, also may include the first and second features be not direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature second spy
Right above sign and oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below be directly below and diagonally below the second feature, or be merely representative of first feature horizontal height
Less than second feature.
Claims (10)
1. a kind of polytetrafluoroethyloil oil seals mold, the skeleton being partly or entirely wrapped in sizing material is equipped in polytetrafluoroethyloil oil seals
(1) and lips (2), which is characterized in that it include upper mold (3), lower die (4), multiple upper mold core assemblies and with the upper mold core group
The one-to-one lower die core assembly of part, wherein
The upper mold core assembly includes upper mold core (5) and upper die head (6), and the upper mold core (5) is connected in the upper mold (3) simultaneously
Equipped with lug boss (7), the upper die head (6) is connected on the lug boss (7)；
The lower die core assembly includes lower mold core (8) and sliding mold core (9), and the lower mold core (8) is connected to the lower die (4)
In, the sliding mold core (9) is slidably connected on the lower mold core (8), shape between the lower mold core (8) and sliding mold core (9)
At there is cavity (10)；
The upper end of sliding mold core (9), which is equipped with, to be adapted to for abutting with the skeleton (1) with the fixation skeleton (1) recessed
The auxiliary section (11) of position in chamber (10)；
The upper end of sliding mold core (9) is additionally provided with the lips station for placing the lips (2)；
When the upper mold (3) and lower die (4) mold, the lug boss (7) and the upper die head (6) protrude into corresponding cavity
(10) in, so that the upper die head (6) pushes down the lips (2) on the lips station, and with lug boss (7), lower mold core (8) and
The forming cavity (12) for being formed and forming the polytetrafluoroethyloil oil seals for inserting sizing material is surrounded in sliding mold core (9) jointly, described
The outside portion of lips (2) and the skeleton (1) are respectively positioned in the forming cavity (12).
2. polytetrafluoroethyloil oil seals mold according to claim 1, which is characterized in that
The upper end of sliding mold core (9) is additionally provided with the packing cavity (13) being connected to the forming cavity (12)；
The top of the outside portion of lips (2) on the lips station is connected to the forming cavity (12)；
The lower section of the outside portion is connected to the packing cavity (13), so that the sizing material wraps the outside of the lips (2)
Above and below portion.
3. polytetrafluoroethyloil oil seals mold according to claim 2, which is characterized in that the skeleton (1) is socketed in described
On auxiliary section (11), it is formed between the skeleton (1) and the auxiliary section (11) for being connected to the forming cavity (12) and institute
State the charging gap of packing cavity (13).
4. polytetrafluoroethyloil oil seals mold according to claim 1, which is characterized in that
Sliding mold core (9) and the upper die head (6) are respectively positioned on the central part of the cavity (10) on horizontal cross-section；
The upper edge positioned at the cavity (10) is equipped in the cavity (10), and the raw material for placing sizing material raw material is put
Portion (14) are set, so that when the sizing material raw material melts and flow at the lips (2), the upper die head (6) has pushed down institute
State lips (2).
5. polytetrafluoroethyloil oil seals mold according to claim 1, which is characterized in that the lower end of the upper die head (6)
Equipped with for pushing down the bulge loop (15) of the lips (2) when the upper mold (3) and lower die (4) molding.
6. polytetrafluoroethyloil oil seals mold according to claim 1, which is characterized in that
The upper mold (3) is equipped with the upper mold core (5) correspondingly upper pilot hole (16)；
The upper mold core (5) is connected to the upper assembly in corresponding upper pilot hole (16) and by connecting bolt (17)
In hole (16)；
The lug boss (7) of the upper mold core (5) is equipped with the mounting hole that the upper die head (6) is connected for close-fitting.
7. polytetrafluoroethyloil oil seals mold according to claim 1, which is characterized in that
The lower die (4) is equipped with descends pilot hole with the lower mold core (8) correspondingly, and the lower pilot hole includes department of assembly
(18) and with the department of assembly (18) be connected to by portion (19)；
The lower mold core (8) is in the department of assembly (18) of corresponding lower pilot hole；
Sliding mold core (9) slide fit is on the lower mold core (8) and extending to described by portion (19)；
It is also threaded with multiple fixing screws (20) on the lower die (4), the head of a nail of each fixing screws (20) is at least
It offsets with the upper end of a lower mold core (8), so that the lower mold core (8) that will be offseted with it is fixed on the lower die (4).
8. polytetrafluoroethyloil oil seals mold according to claim 1, which is characterized in that
The lower end of the lower mold core (8) is equipped with retention bead (21)；
The upper end of sliding mold core (9) is equipped with abutting part (22), and the lower end of sliding mold core (9) is equipped with circlip
(23), so that when the sliding mold core (9) slides into bottom, the abutting part (22) offsets with the retention bead (21)
With limit slippage mold core (9) continue slide downward, when the sliding mold core (9) slides into the top, the circlip (23) and
The retention bead (21) offsets to be continued to slide up with limit slippage mold core (9).
9. polytetrafluoroethyloil oil seals mold according to claim 1, which is characterized in that further include that at least one divides mould spring
(24) and with described divide mould spring (24) one-to-one spring base (25), wherein
The spring base (25) is connected in any one in the upper mold (3) and the lower die (4)；
The one end of described point of mould spring (24) is connected on the spring base (25)；
The other end of the spring is used to work as offseting with residue one in the upper mold (3) and the lower die (4)
When the upper mold (3) and lower die (4) divide mould, drive the upper mold (3) and lower die (4) backwards to movement.
10. polytetrafluoroethyloil oil seals mold according to claim 1, which is characterized in that further include described for guiding
Mould (3) and the lower die (4) molding guiding device, the guiding mechanism include at least one first guiding mechanism (100) and
At least one second guiding mechanism (200), wherein
First guiding mechanism (100) include the first guide post (26) and with first guide post (26) one-to-one the
One guide sleeve (27), wherein
First guide sleeve (27) is connected in any one in the upper mold (3) and the lower die (4)；
The fixing end of first guide post (26) is connected on residue one in the upper mold (3) and the lower die (4), institute
The insertion end for stating the first guide post (26) is used to protrude into corresponding first guide sleeve when the upper mold (3) and lower die (4) molding
(27) to guide upper mold (3) and lower die (4) to mold in；
Second guiding mechanism (200) include the second guide post (28) and with second guide post (28) one-to-one the
Two guide sleeves (29), wherein
Second guide sleeve (29) is connected in any one in the upper mold (3) and the lower die (4)；
The fixing end of second guide post (28) is connected on residue one in the upper mold (3) and the lower die (4), institute
The insertion end for stating the second guide post (28) is used to protrude into corresponding second guide sleeve when the upper mold (3) and lower die (4) molding
(29) to guide upper mold (3) and lower die (4) to mold in；
The insertion end of first guide post (26) is longer than the insertion end of second guide post (28)；
The insertion end of first guide post (26) is pyramidal structure, and the insertion end of second guide post (28) is hemispherical junction
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705278.1A CN110406008B (en) | 2019-08-01 | 2019-08-01 | Polytetrafluoroethylene oil seal mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705278.1A CN110406008B (en) | 2019-08-01 | 2019-08-01 | Polytetrafluoroethylene oil seal mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110406008A true CN110406008A (en) | 2019-11-05 |
| CN110406008B CN110406008B (en) | 2024-01-30 |
Family
ID=68364904
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910705278.1A Active CN110406008B (en) | 2019-08-01 | 2019-08-01 | Polytetrafluoroethylene oil seal mould |
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| Country | Link |
|---|---|
| CN (1) | CN110406008B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111873442A (en) * | 2020-08-20 | 2020-11-03 | 武汉市裕同印刷包装有限公司 | Pressing tool |
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| CN202062594U (en) * | 2011-05-04 | 2011-12-07 | 宁国市瑞普密封件有限公司 | Valve oil-seal mold |
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|---|---|
| CN110406008B (en) | 2024-01-30 |
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Address after: No. 251, Yanqiao, nanlanling village, Menghe Town, Xinbei District, Changzhou City, Jiangsu Province, 213000 Applicant after: CHANGZHOU DOMT SEALING TECHNOLOGY Co.,Ltd. Address before: 213000 new countryside north of five star street, bell tower area, Jiangsu, Changzhou Applicant before: CHANGZHOU DOMT SEALING TECHNOLOGY Co.,Ltd. |
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