CN202895613U - Exhaust injection mould - Google Patents
Exhaust injection mould Download PDFInfo
- Publication number
- CN202895613U CN202895613U CN 201220408131 CN201220408131U CN202895613U CN 202895613 U CN202895613 U CN 202895613U CN 201220408131 CN201220408131 CN 201220408131 CN 201220408131 U CN201220408131 U CN 201220408131U CN 202895613 U CN202895613 U CN 202895613U
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- mould
- die
- communicated
- injection mould
- bifurcated
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- Expired - Fee Related
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Abstract
The utility model relates to an exhaust injection mould comprising an upper mould and a lower mould, wherein the upper mould comprises a cavity 1 and a plurality of exhaust grooves 2; the exhaust grooves 2 are arranged on the mould splitting face of the upper mould; one ends of the exhaust grooves 2 are communicated with the cavity 1, and the other ends of the exhaust grooves 2 are communicated with an external space; the lower mould comprises a convex mould 3, an upper mould positioning structure and a two-branch pouring gate 4; the convex mould 3 is arranged at the position that the cavity 1 of the upper mould is correspondingly matched on the mould splitting face of the lower mould; the upper mould positioning structure comprises the mould splitting face of the lower mould, a left positioning face, a right positioning face and a lower positioning face; the upper mould is tightly matched with the lower mould through the mould splitting face of the lower mould, the left positioning face, the right positioning face and the lower positioning face; and the two-branch pouring gate 4 is communicated with the cavity 1 in a sealed manner. The surface quality of a casting produced by the exhaust injection mould provided by the utility model is obviously improved, so that the yield of the exhaust injection mould is improved, and the production cost of the exhaust injection mould is reduced.
Description
Technical field
The utility model relates to a kind of injection mold, and particularly a kind of injection mold with exhaust duct belongs to the injection mold field.
Background technology
At present ubiquity foundry goods inside, injection mold field exists crafters or surface to exist structural strength that the problem of the defectives such as pit pit, these defectives had a strong impact on foundry goods and outward appearance product mutually.Specifically, there is hickie in cast(ing) surface, and this quality flaw is flagrant for using the part on some precision instrument.Practical experience shows, the probability of happening of this quality problems and the injection speed of injection molding material relation are maximum, yet the injection speed of injection molding material is relevant with the pressure in the die cavity, continuous inflow along with material feeding, air pressure in the die cavity constantly raises, thereby affected injection speed, the accumulation condensation of the castable position that at first local volume is larger in die cavity, then progressively flow to tiny meagre place, yet the gas that remains in the die cavity is also squeezed to these positions, finally causes die cavity all to fill with and produces the residual vestige of bubble at cast(ing) surface.
The utility model content
The utility model exhaust injection mould tool discloses a kind of new scheme, and there is the probability of hickie quality problems generation in the cast(ing) surface that effectively reduces the production of instrument button class injection mold, has significantly improved Qualified Products Rate.
The utility model exhaust injection mould tool comprises upper die and lower die.Patrix comprises die cavity 1 and some air discharge ducts 2, and air discharge duct 2 is arranged on the die joint of patrix, and air discharge duct 2 one ends are communicated with die cavity 1, and air discharge duct 2 other ends are communicated with space outerpace; Counterdie comprises punch 3, patrix location structure and bifurcated running channel 4, punch 3 is arranged on the counterdie die joint position with upper model cavity 1 corresponding matching, the patrix location structure comprises counterdie die joint, left locating surface, right locating surface and lower locating surface, patrix and counterdie closely cooperate by counterdie die joint, left locating surface, right locating surface and lower locating surface, bifurcated running channel 4 and 1 airtight connection of die cavity.
The surface quality of continuous castings of the utility model exhaust injection mould tool production significantly improves, thereby has improved the qualification rate of product, has reduced the production cost of product.
Description of drawings
Fig. 1 is model cavity floor map on the utility model exhaust injection mould tool embodiment one.
Fig. 2 is model cavity floor map on the utility model exhaust injection mould tool embodiment two.
Fig. 3 is the utility model exhaust injection mould tool counterdie schematic perspective view.
In Fig. 1～3, the 1st, die cavity; The 2nd, air discharge duct, the 3rd, punch, the 4th, bifurcated running channel, the 5th, slide block slot, the 6th, pressure-equalizing passageway, the 7th, sprue bushing.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Shown in Fig. 1～3, the utility model exhaust injection mould tool patrix floor map and counterdie schematic perspective view.The exhaust injection mould tool comprises upper die and lower die.Patrix comprises die cavity 1 and some air discharge ducts 2, air discharge duct 2 is arranged on the die joint of patrix, air discharge duct 2 one ends are communicated with die cavity 1, air discharge duct 2 other ends are communicated with space outerpace, the end that air discharge duct 2 is communicated with die cavity usually is arranged on the larger material feeding of die cavity volume and flows to terminal, can be arranged on the angle, bottom of model cavity 1 in this case, as illustrated in fig. 1 and 2, and air discharge duct 2 is straight pipelines.Counterdie comprises punch 3; patrix location structure and bifurcated running channel 4; punch 3 is arranged on the counterdie die joint position with upper model cavity 1 corresponding matching; the patrix location structure comprises the counterdie die joint; left locating surface; right locating surface and lower locating surface; patrix and counterdie are by the counterdie die joint; left locating surface; right locating surface and lower locating surface closely cooperate; bifurcated running channel 4 and 1 airtight connection of die cavity; in this programme; for certain material pressure that waters is provided at sprue channel open; counterdie can also comprise the sprue bushing 7 of the vertical setting that is communicated with bifurcated running channel 4 entrances, sprue bushing 7; bifurcated running channel 4 and die cavity 1 form airtight casting space.In this programme, patrix can be made and comprise two die cavities 1 that are symmetrically arranged along the patrix center line, thus counterdie also comprise simultaneously with two punch 3 of above-mentioned two die cavity 1 corresponding matching and with two die cavities, 1 airtight two bifurcated running channels 4 that are communicated with.
This programme has added the design of air discharge duct in general instrument button class injection mold, Effective Raise the surface quality of foundry goods, the qualification rate of product is reached more than 95%.The expansion scheme of die cavity and running channel has improved production efficiency so that mould once can be produced two foundry goods.
In order to be convenient to molding behind casting complete, the patrix of this programme also comprises slide block slot 5, and slide block slot 5 is arranged on the die joint of 1 of two die cavity, is provided with slide block in the slide block slot 5.
For hydraulic pressure and flow in balanced two bifurcated running channels 4 when pouring into a mould, this programme arranges a pressure-equalizing passageway 64 of two bifurcated running channels, and pressure-equalizing passageway 6 is communicated with two bifurcated running channels 4.
In actual production, find, the surface quality problems that occurs easily burr at the air discharge duct 2 of foundry goods and the connectivity part position of upper model cavity 1, in order to address this problem, this programme can be designed to air discharge duct 2 duct of constant latus rectum or along die cavity 1 edge to the duct that patrix edge direction latus rectum increases gradually, when cast, air in the die cavity is easier discharges by air discharge duct 2, thereby has guaranteed the surface quality at the above-mentioned position of foundry goods.
The utility model exhaust injection mould tool is not limited to the embodiment scope of disclosure, and the replacement scheme that those skilled in the art make in conjunction with common practise according to this programme also belongs to the scope of this programme.
Claims (7)
1. exhaust injection mould tool, comprise upper die and lower die, described patrix comprises die cavity (1) and some air discharge ducts (2), air discharge duct (2) is arranged on the die joint of described patrix, air discharge duct (2) one ends are communicated with die cavity (1), and air discharge duct (2) other end is communicated with space outerpace; Described counterdie comprises punch (3), patrix location structure and bifurcated running channel (4), punch (3) is arranged on the counterdie die joint position with upper model cavity (1) corresponding matching, described patrix location structure comprises counterdie die joint, left locating surface, right locating surface and lower locating surface, described patrix and counterdie closely cooperate by described counterdie die joint, left locating surface, right locating surface and lower locating surface, bifurcated running channel (4) and airtight connection of die cavity (1).
2. exhaust injection mould tool according to claim 1, it is characterized in that, described patrix comprises two die cavities (1) that are symmetrically arranged along the patrix center line, described counterdie comprise with two punch (3) of described two die cavities (1) corresponding matching and with airtight two the bifurcated running channels (4) that are communicated with of described two die cavities (1).
3. exhaust injection mould tool according to claim 2 is characterized in that, described patrix also comprises slide block slot (5), and slide block slot (5) is arranged on the die joint between described two die cavities (1), and slide block slot is provided with slide block in (5).
4. according to claim 2 or 3 described exhaust injection mould tools, it is characterized in that a pressure-equalizing passageway (6) is set, and pressure-equalizing passageway (6) is communicated with described two bifurcated running channels (4) between two bifurcated running channels (4).
5. exhaust injection mould tool according to claim 1 and 2; it is characterized in that; described counterdie also comprises the sprue bushing (7) of the vertical setting that is communicated with bifurcated running channel (4) entrance, and sprue bushing (7), bifurcated running channel (4) and die cavity (1) form airtight casting space.
6. exhaust injection mould tool according to claim 1 and 2 is characterized in that, the end that air discharge duct (2) is communicated with upper model cavity (1) is arranged on the angle, bottom of upper model cavity (1), and air discharge duct (2) is straight pipeline.
7. exhaust injection mould tool according to claim 6 is characterized in that, air discharge duct (2) is the duct of constant latus rectum or along die cavity (1) edge to the duct that described patrix edge direction latus rectum increases gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408131 CN202895613U (en) | 2012-08-16 | 2012-08-16 | Exhaust injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220408131 CN202895613U (en) | 2012-08-16 | 2012-08-16 | Exhaust injection mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202895613U true CN202895613U (en) | 2013-04-24 |
Family
ID=48116323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220408131 Expired - Fee Related CN202895613U (en) | 2012-08-16 | 2012-08-16 | Exhaust injection mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202895613U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459300A (en) * | 2016-01-04 | 2016-04-06 | 山东豪迈机械科技股份有限公司 | Pattern rib inlaid-type pore-free tire mold and pattern block thereof |
| CN110053223A (en) * | 2018-01-19 | 2019-07-26 | 苏州汉扬精密电子有限公司 | The exhaust structure of flexible glue |
-
2012
- 2012-08-16 CN CN 201220408131 patent/CN202895613U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459300A (en) * | 2016-01-04 | 2016-04-06 | 山东豪迈机械科技股份有限公司 | Pattern rib inlaid-type pore-free tire mold and pattern block thereof |
| CN105459300B (en) * | 2016-01-04 | 2018-09-07 | 山东豪迈机械科技股份有限公司 | The inserted pore-free tire mould of flower muscle and its pattern block |
| CN110053223A (en) * | 2018-01-19 | 2019-07-26 | 苏州汉扬精密电子有限公司 | The exhaust structure of flexible glue |
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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: 20130424 Termination date: 20140816 |
|
| EXPY | Termination of patent right or utility model |