CN105904623A - Vulcanizing die for plastic framework of spring cushion - Google Patents
Vulcanizing die for plastic framework of spring cushion Download PDFInfo
- Publication number
- CN105904623A CN105904623A CN201610322455.4A CN201610322455A CN105904623A CN 105904623 A CN105904623 A CN 105904623A CN 201610322455 A CN201610322455 A CN 201610322455A CN 105904623 A CN105904623 A CN 105904623A
- Authority
- CN
- China
- Prior art keywords
- rubber
- runner
- spring pad
- die
- plastic skeleton
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
Abstract
The invention relates to a vulcanizing die for a plastic framework of a spring cushion, and the defects that the development cycle is prolonged and the cost is increased as an existing spring cushion adopts a technical framework and needs a stamping die with a complex processing shape are overcome. The vulcanizing die comprises an inner die and an outer die, and a vulcanizing space is formed between the inner die and the outer die; a clinker framework is fixed in the vulcanizing space; a rubber injecting opening is formed in the central position of the die; a rubber runner is arranged at the tail end of the rubber injecting opening and is in a circular plane shape; and an annular rubber sprue is formed in the outer circumference of the circular surface. The outer die and the inner die are folded; rubber is injected from the rubber injecting opening, passes through the rubber runner of the circular plane shape and then passes through the annular sprue communicated with the space where the plastic framework is; the rubber runner is large in area and can bear relatively high rubber injecting speed; meanwhile, the whole die cavity can be completely filled at a relatively low injection pressure, so that the impact on the plastic framework is reduced; and in addition, an impact force borne by the plastic framework is homogenized, so that local deformation of the plastic framework is avoided.
Description
Technical field
The present invention relates to a kind of sulfurizing mould, especially a kind of spring pad plastic skeleton sulfurizing mould.
Background technology
Spring pad is part conventional on automobile absorber, and existing spring pad is to use metallic framework and rubber sulfur mostly
That changes is conventionally produced.But spring pad is helicoidal structure, the profile of spring pad is relatively complicated.Existing spring pad
Using metallic framework, metallic framework typically uses acid-cleaning plate to be stamped to form, and molding is relatively difficult and it needs to machining shape is multiple
Miscellaneous diel, causes the construction cycle long, and R&D costs increase.
The performance having some materials can compare favourably with metal, if strengthened with the novel high polymer that can match in excellence or beauty with metal
Synthetic plastic skeleton replaces metallic framework, plastic skeleton to have the excellences such as wear-resisting, heat-resisting, aging resistance, uvioresistant, high-impact
Performance, and this material viscosity is low, good fluidity, is suitable for injection mo(u)lding, so that the molding of plastic skeleton is simple, and can carry
High shaping efficiency.
But the gum-injecting port of original sulfuration is in the peripheral position of spring pad, vulcanite forms impact at gum-injecting port
Making plastic skeleton serious at the position distortions of gum-injecting port, even if changing rubber injection speed, also cannot obtain qualified spring
Pad, brings bottleneck to production.
Summary of the invention
The present invention solves existing spring pad employing technology skeleton, needs the diel that machining shape is complicated, causes
Construction cycle extends, the defect that cost increases, it is provided that a kind of spring pad plastic skeleton sulfurizing mould, changes the position of gum-injecting port,
The route that amendment rubber is advanced simultaneously, reduces the impact of rubber, and ratio avoids plastic skeleton local deformation.
The technical solution adopted for the present invention to solve the technical problems is: a kind of spring pad plastic skeleton sulfurizing mould, bag
Including Nei Mo and external mold, form sulfuration space between Nei Mo and external mold, sulfuration fixes grog skeleton in space, the center of mould
Being provided with gum-injecting port, gum-injecting port end is rubber runner, and rubber runner is disc shape, and the periphery of disc is rubber annular cast gate.
Interior mould is involutory with external mold, and rubber injects from gum-injecting port, empty with plastic skeleton place through the rubber runner warp again of circular plan shape
Between the circular gate that communicates enter into sulfuration space, rubber flow area is big, can bear higher injecting glue speed, simultaneously can be with
Relatively low injection pressure just can fill full whole die cavity, reduces the impact to plastic skeleton, and plastic skeleton is subject to
Impulsive force homogenization, it is to avoid plastic skeleton local deformation.
As preferably, external mold is lid-like, and external mold forms die joint with interior mould in the position that spring pad internal diameter is minimum,
Rubber runner is involuted with interior mould by external mold.
As preferably, rubber runner such as is at the shape thickness, and circular gate such as is at the shape thickness, and the thickness of rubber runner is more than rubber annular
The upper side edge coexistence same plane of the thickness of cast gate, the upper side edge of circular gate and rubber runner, the lower side of circular gate is high
Lower side in rubber runner.
As preferably, the bottom of the position that rubber runner docks with circular gate is curved bottom.
As preferably, rubber runner is that thickness changes shape, little near the thickness of the rubber runner of gum-injecting port, waters near annular
The thickness of the rubber runner of mouth is big, i.e. the lower plane of rubber runner is cone-shaped plane.
As preferably, the bottom of the position that rubber runner docks with circular gate is curved bottom.
As preferably, the bottom surface of rubber runner being provided with and prevents gushing wall, the anti-wall that gushes is made up of, between column protruding column
It is separated from each other.
As preferably, column is distributed in the rubber runner position near circular gate, and the height of column is less than place rubber
The thickness of runner position, reason gap between the top of column and the above of rubber runner.
As preferably, the interval between column is the biggest the closer to circular gate.
As preferably, plastic skeleton is mixed by following components by weight: nylon66 fiber 100 parts, glass fibre
20-30 part, attapulgite 10-15 part, ethylene-vinyl acetate copolymer 5-8 part, ethylene propylene diene rubber 8-12 part, vinyl three
T-butyl peroxy silane 3-5 part, antioxidant 1010 1-2 part, ethylene bis stearamide 0.5-1 part, phenolic resin 5-8 part, chlorination
Calcium 1-3 part.
The invention has the beneficial effects as follows: Nei Mo is involutory with external mold, rubber injects from gum-injecting port, through the rubber of circular plan shape
The glue runner circular gate that warp communicates with space, plastic skeleton place again enters into sulfuration space, and rubber flow area is big, permissible
Bear higher injecting glue speed, just can fill full whole die cavity with relatively low injection pressure simultaneously, reduce plastic skeleton
Impact, and make plastic skeleton impact force homogenization, it is to avoid plastic skeleton local deformation.
Accompanying drawing explanation
Fig. 1 is one spring pad structural representation of the present invention；
Fig. 2 is one structural representation of the present invention；
Fig. 3 is the second structural representation of the present invention；
In figure: 1, plastic skeleton, 2, rubber layer, 3, circular gate, 4, rubber runner, 5, gum-injecting port, 6, external mold, 7, interior mould.
Detailed description of the invention
Below by specific embodiment, and combine accompanying drawing, technical scheme is described in further detail.
Embodiment 1: a kind of spring pad plastic skeleton sulfurizing mould (seeing Fig. 2), spring pad (seeing Fig. 1) entirety is helically
Shape, inside is plastic skeleton 1, and the periphery of plastic skeleton and inner circumferential are all attached with rubber layer 2.
Mould includes interior mould 7 and external mold 6, and external mold is lid-like, and interior mould is in external mold, leaves between Nei Mo and external mold
Space, is wherein in vertical position and forms sulfuration space, namely die cavity, and plastic skeleton is positioned in die cavity, grog skeleton
Lateral surface and external mold between, between medial surface and interior mould, there is gap.Between between pushing up in the top of interior mould and the lid of external mold
Gap forms rubber runner 4, and the center of external mold is provided with gum-injecting port 5, gum-injecting port end connection rubber runner.Rubber runner in
Disc shape, the periphery of disc is rubber annular cast gate 3.Rubber runner is in the position that spring pad internal diameter is minimum.Rubber runner is
Etc. shape thickness, circular gate such as is at the shape thickness, and the thickness of rubber runner is more than the thickness of rubber annular cast gate, the upper side edge of circular gate
With the upper side edge coexistence same plane of rubber runner, the lower side of circular gate is higher than the lower side of rubber runner.Rubber runner
The bottom of the position docked with circular gate is curved bottom.
Plastic skeleton is mixed by following components by weight: nylon66 fiber 100 parts, glass fibre 25 parts, attapulgite
12 parts of powder, ethylene-vinyl acetate copolymer 6 parts, ethylene propylene diene rubber 11 parts, vinyl silane tri-butyl peroxy 3 parts, antioxygen
Agent 1,010 1.6 parts, ethylene bis stearamide 0.7 part, 6 parts of phenolic resin, 3 parts of calcium chloride.
Embodiment 2: a kind of spring pad plastic skeleton sulfurizing mould (seeing Fig. 3), difference from Example 1 is: rubber
Glue runner is that thickness changes shape, little near the thickness of the rubber runner of gum-injecting port, near the thickness of the rubber runner of circular gate
Greatly, i.e. the lower plane of rubber runner is cone-shaped plane.The bottom of the position that rubber runner docks with circular gate is circular arc bottom
Portion.Remaining structure is with reference to embodiment 1.
Embodiment 3: a kind of spring pad plastic skeleton sulfurizing mould, the present embodiment is provided with anti-on the bottom surface of rubber runner
Gushing wall, the anti-wall that gushes is made up of protruding column, is separated from each other between column.Column is distributed in rubber runner near circular gate
Position, the height of column is less than the thickness of rubber runner position, place, reason between the top of column and the above of rubber runner
Gap.Interval between column is the biggest the closer to circular gate.Remaining structure is with reference to other embodiments.
Embodiment described above is several preferred version of the present invention, and the present invention not makees any pro forma limit
System, also has other variant and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (10)
1. a spring pad plastic skeleton sulfurizing mould, it is characterised in that include Nei Mo and external mold, is formed between Nei Mo and external mold
Sulfuration space, fixes grog skeleton in vulcanizing space, and the center of mould is provided with gum-injecting port, and gum-injecting port end is rubber flow
Road, rubber runner is disc shape, and the periphery of disc is rubber annular cast gate.
Spring pad plastic skeleton sulfurizing mould the most according to claim 1, it is characterised in that external mold is lid-like, external mold
Forming die joint with interior mould in the position that spring pad internal diameter is minimum, rubber runner is involuted with interior mould by external mold.
Spring pad plastic skeleton sulfurizing mould the most according to claim 1 and 2, it is characterised in that rubber runner is uniform thickness
Shape, circular gate such as is at the shape thickness, and the thickness of rubber runner is more than the thickness of rubber annular cast gate, the upper side edge of circular gate and rubber
The upper side edge coexistence same plane of glue runner, the lower side of circular gate is higher than the lower side of rubber runner.
Spring pad plastic skeleton sulfurizing mould the most according to claim 3, it is characterised in that rubber runner and circular gate
The bottom of the position of docking is curved bottom.
Spring pad plastic skeleton sulfurizing mould the most according to claim 1 and 2, it is characterised in that rubber runner is that thickness becomes
Change shape, little near the thickness of rubber runner of gum-injecting port, near the thickness of the rubber runner of circular gate big, i.e. rubber runner
Lower plane is cone-shaped plane.
Spring pad plastic skeleton sulfurizing mould the most according to claim 5, it is characterised in that rubber runner and circular gate
The bottom of the position of docking is curved bottom.
Spring pad plastic skeleton sulfurizing mould the most according to claim 1 and 2, it is characterised in that on the bottom surface of rubber runner
Being provided with and prevent gushing wall, the anti-wall that gushes is made up of protruding column, is separated from each other between column.
Spring pad plastic skeleton sulfurizing mould the most according to claim 7, it is characterised in that column is distributed in rubber runner
Near the position of circular gate, the height of column is less than the thickness of rubber runner position, place, the top of column and rubber runner
Above between reason gap.
Spring pad plastic skeleton sulfurizing mould the most according to claim 7, it is characterised in that the interval between column is more leaned on
Nearly circular gate is the biggest.
Spring pad plastic skeleton sulfurizing mould the most according to claim 1 and 2, it is characterised in that plastic skeleton is by weight
Part meter is mixed by following components: nylon66 fiber 100 parts, glass fibre 20-30 part, attapulgite 10-15 part, ethyl vinyl acetate
Ethylene copolymer 5-8 part, ethylene propylene diene rubber 8-12 part, vinyl silane tri-butyl peroxy 3-5 part, antioxidant 1010 1-2
Part, ethylene bis stearamide 0.5-1 part, phenolic resin 5-8 part, calcium chloride 1-3 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610322455.4A CN105904623A (en) | 2016-05-16 | 2016-05-16 | Vulcanizing die for plastic framework of spring cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610322455.4A CN105904623A (en) | 2016-05-16 | 2016-05-16 | Vulcanizing die for plastic framework of spring cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105904623A true CN105904623A (en) | 2016-08-31 |
Family
ID=56749247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610322455.4A Pending CN105904623A (en) | 2016-05-16 | 2016-05-16 | Vulcanizing die for plastic framework of spring cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105904623A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030979A (en) * | 2017-04-14 | 2017-08-11 | 宣城安安橡塑有限责任公司 | A kind of disc spring sealing automatic ejection mould |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631647A (en) * | 2004-12-29 | 2005-06-29 | 蒋迎峰 | Rubber injecting device with cold runner |
| CN203485391U (en) * | 2013-09-29 | 2014-03-19 | 成都盛帮密封件股份有限公司 | Die structure of bonded washer |
| CN204566571U (en) * | 2015-04-30 | 2015-08-19 | 南京金三力橡塑有限公司 | A kind of processing mold of stainless steel bonded washer |
-
2016
- 2016-05-16 CN CN201610322455.4A patent/CN105904623A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631647A (en) * | 2004-12-29 | 2005-06-29 | 蒋迎峰 | Rubber injecting device with cold runner |
| CN203485391U (en) * | 2013-09-29 | 2014-03-19 | 成都盛帮密封件股份有限公司 | Die structure of bonded washer |
| CN204566571U (en) * | 2015-04-30 | 2015-08-19 | 南京金三力橡塑有限公司 | A kind of processing mold of stainless steel bonded washer |
Non-Patent Citations (1)
| Title |
|---|
| 周殿明，张丽娜: "《塑料挤出成型技术问答》", 31 March 2004, 化学工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030979A (en) * | 2017-04-14 | 2017-08-11 | 宣城安安橡塑有限责任公司 | A kind of disc spring sealing automatic ejection mould |
| CN107030979B (en) * | 2017-04-14 | 2023-06-02 | 宣城安安橡塑有限责任公司 | Automatic ejection die for disc spring sealing glue |
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Application publication date: 20160831 |