CN202507484U - Vacuumizing type mould - Google Patents
Vacuumizing type mould Download PDFInfo
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- CN202507484U CN202507484U CN2012201601863U CN201220160186U CN202507484U CN 202507484 U CN202507484 U CN 202507484U CN 2012201601863 U CN2012201601863 U CN 2012201601863U CN 201220160186 U CN201220160186 U CN 201220160186U CN 202507484 U CN202507484 U CN 202507484U
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- mould
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- die cavity
- vacuumizes
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Abstract
The utility model provides a vacuumizing type mould, and belongs to the technical field of machinery. The vacuumizing type mould can be used for solving the problems that batch of peak, insufficient filling and the like caused by poor exhaustion and air trapping phenomena because the existing mould adopts a passive air exhaustion way. The vacuumizing type mould comprises a mould blank, wherein the mould blank is provided with a fixed mould which is arranged under the mould blank and a moving mould which is arranged on the mould blank and is matched with the fixed mould; the fixed mould and the moving mould are adhered and connected by the parting surface; the fixed mould is provided with a hollow profiling cavity after being adhered to the moving mould; a mould kernel is arranged in the profiling cavity; a passage is arranged on the mould blank; the inner end of the passage is communicated with the profiling cavity; an air exhaustion hole is formed at the outer end of the passage; an air exhaustion device is connected with the outer end of the passage; a sealing member I is arranged on the parting surface between the fixed mould and the moving mould; and a second member II is arranged between the bottom surface of the mould kernel and the bottom surface of the profiling cavity. The vacuumizing type mould has the advantages that the vacuum requirement on air exhaustion in the profiling cavity is met, the gas during the formation of the product can be exhausted to solve the problem of air trapping, the pass percentage and the quality of the product are improved, the production benefit is increased and the like.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of mould, particularly a kind of formula mould that vacuumizes.
Background technology
Injection mo(u)lding is after the heating of raw material such as plastics, plastic cement is reached molten condition, to be injected in the mould of required form by high speed, high pressure, behind manufacturing process such as cooling, heating, obtains the method for solidified forming article.This method is applicable to the batch process of complex-shaped parts, is one of important processing method.
Along with the raw-material performance of injection moulding, kind improve constantly, expand extensively, the part of every profession and trade will use the ratio of plastics, plastic cement to increase day by day to mould Dai Gang, further to accelerate with the process of moulding Dai Mu, simultaneously injection mold also had higher requirement.Existing injection mold for example, the Chinese patent document once disclosed a kind of mould [Chinese patent number: ZL200510067032.4; Granted publication number: CN1689780A]; Comprise and be used to make the forming surface that is molded the object surfaces moulding; And being used to be released into the exhaust structure of the air between profile and the said surface, said exhaust structure is included in that each has the EDM exhaust duct in the slit that is not more than 0.1mm on the forming surface.
Above-mentioned mould is only through several exhaust duct exhausts, and each exhaust duct is the slit that is not more than 0.1mm, and the method that realizes of this structure belongs to passive exhaust thus; And make exhaust be difficult to reach degree of mobility; Thereby in practical application, lack of fill appears in regular meeting, and compressed air is burnt; The goods internal stress is high, and surface streamline, melt run, focal spot etc. are by the bad problem that causes of die venting.
Especially the technology of injection heat curing plastic product, the characteristic of heat cure plastic material is under 70～100 ℃ temperature, to melt, under 160～190 ℃ temperature, solidify, and in die cavity during moulding because temperature transition produces a large amount of gases.Generally, mould can be employed in the die surface and hold a large amount of air discharge ducts, perhaps adopts the secondary injecting glue.Yet adopt these two kinds of methods any all can't avoid product in moulding is produced because of a large amount of gases because of can't be in formed product discharge before; Cause producing a large amount of batch peaks and the gas phenomenon occurs being stranded; Thereby a large amount of defective products occurs and increased follow-up manufacturing procedure, be unfavorable for enhancing productivity and reducing production cost.
The utility model content
The purpose of the utility model is to have the problems referred to above to existing technology, proposed a kind of can reaching in the die cavity of mould and located vacuum state through hermetically-sealed construction and air-extractor, thus the formula that the vacuumizes mould of the tired gas phenomenon of solution product in moulding.
The purpose of the utility model can realize through following technical proposal: a kind of formula mould that vacuumizes comprises mold base, the dynamic model of cover half below said mold base has and the top that cooperates with cover half; Be fitted and connected through die joint between the described fixed half and moving half, and have the die cavity that is hollow after cover half and the dynamic model applying, be provided with die in the said die cavity; It is characterized in that offer path on the described mold base, the inner port of said path is communicated with above-mentioned die cavity; Its external port place is provided with aspirating hole; And connect an air extractor, and seal one is set on the die joint between the said fixed half and moving half, be provided with seal two between described die bottom surface and the die cavity bottom surface.
Originally vacuumize seal one and seal two in the formula mould, lay respectively at the upper edge and the lower edge of die cavity, make its inner space that encloses be salable space, the inner port of path just is communicated with the sealing space, and die is positioned at the sealing space.This vacuumizes the formula mould and especially is employed on the injection heat curing plastic product; The characteristic of heat cure plastic material is under 70～100 ℃ temperature, to melt; Under 160～190 ℃ temperature, solidify, and in die cavity during moulding because temperature transition produces a large amount of gases.When formed product, can the gas that produced in the die cavity be extracted out through air extractor, make it reach vacuum state, gas is all derived in the product thus, eliminates and is stranded gaseity, promotes the qualification rate and the quality of product.
In the above-mentioned formula that vacuumizes mould, offer the plurality of rows air drain on the inner wall surface of the hollow die cavity of said mold base.Usually air discharge duct is opened in the upper surface of die cavity, and its gas that produces when being prone to injection moulding is besieged in certain zone, thereby is convenient to bleed discharge.
In the above-mentioned formula that vacuumizes mould, described path is opened on the cover half of mold base, and its inner port is positioned at above-mentioned seal two inboards.The path outer end connects air extractor, so it is positioned on the cover half, after assembling, just need not move or dismantle, and is convenient to manipulate; The path inner port is positioned at seal two inboards and just is communicated with the space that the sealing space belongs to when being formed product with the seal cavity that seal two is enclosed with seal one.
In the above-mentioned formula that vacuumizes mould, the external port place that is positioned at above-mentioned path on the described cover half is provided with the inner groovy that is used to display its aspirating hole.Inner groovy is opened on the periphery wall of cover half, and it radially offers, and make during aspirating hole is embedded in, thereby overall appearance is compact.
In the above-mentioned formula that vacuumizes mould, be arranged with bolt connection piece on the described aspirating hole.The external port place of path plugs a port pipe fitting, and is arranged with sealing ring on the port pipe fitting and gap between itself and the path is filled form sealing; This port pipe fitting outer end is exposed and is embedded in inner groovy, offers screw thread and sheathed bolt connection piece on its outer end, connects air extractor by this bolt connection piece.
In the above-mentioned formula that vacuumizes mould, described seal one is the high temperature resistant waterproof cushion rubber with seal two.Adopt the high temperature resistant waterproof cushion rubber under 160～190 ℃ temperature environment of this formed product, guarantee seal one and seal two, thereby guarantee the action effect of integral sealing not by high temperature corrosion, and then the reliability and the service life of improving vacuum air-removed system.
Compared with prior art; Originally vacuumizing the formula mould matches with vacuum air-removed system through sealing system is set; Realized the interior vacuum requirement of die cavity of formed product,, reached to solve and be stranded the gas phenomenon so that discharge a large amount of gases that the formed product process is produced; Improve product percent of pass and quality, increase excellent points such as production interests thus.
Description of drawings
Fig. 1 is the planar structure sketch map one that originally vacuumizes the formula mould.
Fig. 2 is the planar structure sketch map two that originally vacuumizes another angle of formula mould.
Fig. 3 is the perspective view that originally vacuumizes the formula mould.
Among the figure, 1, mold base; 1a, die joint one; 1b, die cavity; 1c, inner groovy; 2, die; 3, path; 3a, aspirating hole; 4, seal one; 5, seal two; 6, air discharge duct; 7, bolt connection piece.
The specific embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
Like Fig. 1, Fig. 2 and shown in Figure 3, originally vacuumize the formula mould and comprise mold base 1, mold base 1 has hollow die cavity 1b, outside being communicated with die cavity 1b an air extractor is set, and is set to seal cavity in the die cavity 1b.
On die joint one 1a of cover half seal 1 is set; Be installed with seal 25 on the bottom of die 2; And seal 1 is the high temperature resistant waterproof cushion rubber with seal 25; This high temperature resistant waterproof cushion rubber material guarantees that seal 1 and seal 25 are not corroded, rotten or any damage under the hot environment of formed product, thereby guarantees the action effect of integral sealing, and then the reliability and the service life of improving vacuum air-removed system.
The joint place of die joint one 1a and die joint two is positioned at the upside of whole die cavity 1b, and it is sealed in this sheaf space; The seal 25 that sets firmly on die 2 bottoms is fitted with die cavity 1b bottom surface and is contacted and form sealing, so it seals in this bottom space.Form a seal cavity through the longitudinal space between seal 1 and the seal 25 thus, i.e. the molding space of product, and die 2 is positioned at this space.
Offer a path 3 on the cover half of mold base 1, the inner port of path 3 is opened on the bottom surface of die cavity 1b, and it is positioned at the inner side of 25 corrals of seal, thus the communication seals space.Radially offer a columniform inner groovy 1c on the periphery wall of cover half, the external port of path 3 is opened in inner groovy 1c bottom land, and this external port circle diameter extends out, and forms an aspirating hole 3a.Plug a port pipe fitting in the aspirating hole 3a, be provided with the sealing ring that is set on the port pipe fitting between aspirating hole 3a and the port pipe fitting, thereby the contact gap of filling both borders forms sealing; This port pipe fitting outer end is exposed and is embedded in inner groovy 1c, offers a screw thread and a sheathed bolt connection piece 7 on its extension, by these bolt connection piece 7 outer air extractors that connect.Path 3 outer ends connect air extractor, so it is positioned on the cover half, after assembling, just need not move or dismantle, and are convenient to manipulate.
Usually the inwall upper surface at die cavity 1b also offers plurality of rows air drain 6, and the gas that air discharge duct 6 produces when being prone to injection moulding is besieged in certain zone, thereby is convenient to bleed discharge.
This vacuumizes the formula mould and especially is employed on the injection heat curing plastic product; The characteristic of heat cure plastic material is under 70～100 ℃ temperature, to melt; Under 160～190 ℃ temperature, solidify, and in die cavity 1b during moulding because temperature transition produces a large amount of gases.When formed product, can the gas that produced in the die cavity 1b be extracted out through air extractor, make it reach vacuum state, gas is all derived in the product thus, eliminates and is stranded gaseity, promotes the qualification rate and the quality of product.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used mold base 1 morely; Die joint one 1a; Die cavity 1b; Inner groovy 1c; Die 2; Path 3; Aspirating hole 3a; Seal 1; Seal 25; Air discharge duct 6; Bolt connection piece 7 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (6)
1. one kind vacuumizes the formula mould, comprises mold base, the dynamic model of cover half below said mold base has and the top that cooperates with cover half; Be fitted and connected through die joint between the described fixed half and moving half, and have the die cavity that is hollow after cover half and the dynamic model applying, be provided with die in the said die cavity; It is characterized in that offer path on the described mold base, the inner port of said path is communicated with above-mentioned die cavity; Its external port place is provided with aspirating hole; And connect an air extractor, and seal one is set on the die joint between the said fixed half and moving half, be provided with seal two between described die bottom surface and the die cavity bottom surface.
2. the formula mould that vacuumizes according to claim 1 is characterized in that, offers the plurality of rows air drain on the inner wall surface of the hollow die cavity of said mold base.
3. the formula mould that vacuumizes according to claim 1 is characterized in that described path is opened on the cover half of mold base, and its inner port is positioned at above-mentioned seal two inboards.
4. the formula mould that vacuumizes according to claim 3 is characterized in that the external port place that is positioned at above-mentioned path on the described cover half is provided with the inner groovy that is used to display its aspirating hole.
5. the formula mould that vacuumizes according to claim 4 is characterized in that, is arranged with bolt connection piece on the described aspirating hole.
6. according to arbitrary described formula mould that vacuumizes in the claim 1 to 5, it is characterized in that described seal one is the high temperature resistant waterproof cushion rubber with seal two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201601863U CN202507484U (en) | 2012-04-16 | 2012-04-16 | Vacuumizing type mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201601863U CN202507484U (en) | 2012-04-16 | 2012-04-16 | Vacuumizing type mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202507484U true CN202507484U (en) | 2012-10-31 |
Family
ID=47059987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201601863U Expired - Fee Related CN202507484U (en) | 2012-04-16 | 2012-04-16 | Vacuumizing type mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202507484U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471514A (en) * | 2017-09-15 | 2017-12-15 | 无锡新宏泰电器科技股份有限公司 | A kind of Vacuuming structure of compression mold |
| CN108215052A (en) * | 2017-12-30 | 2018-06-29 | 大连銮艺精密模塑制造有限公司 | Prevent the method for liquid crystal polymer resin injection moulding process surface product defect |
-
2012
- 2012-04-16 CN CN2012201601863U patent/CN202507484U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107471514A (en) * | 2017-09-15 | 2017-12-15 | 无锡新宏泰电器科技股份有限公司 | A kind of Vacuuming structure of compression mold |
| CN108215052A (en) * | 2017-12-30 | 2018-06-29 | 大连銮艺精密模塑制造有限公司 | Prevent the method for liquid crystal polymer resin injection moulding process surface product defect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20150416 |
|
| EXPY | Termination of patent right or utility model |