CN204673926U - Laddering pouring gate structure and injection mold - Google Patents
Laddering pouring gate structure and injection mold Download PDFInfo
- Publication number
- CN204673926U CN204673926U CN201520171695.XU CN201520171695U CN204673926U CN 204673926 U CN204673926 U CN 204673926U CN 201520171695 U CN201520171695 U CN 201520171695U CN 204673926 U CN204673926 U CN 204673926U
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- gate
- cast gate
- laddering
- runner
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Abstract
The utility model discloses a kind of laddering pouring gate structure and injection mold, this laddering pouring gate structure comprises charging aperture, the runner be communicated with described charging aperture, and is communicated with the compound cast gate of described runner and mold cavity; Described compound cast gate comprises the fan gate with described flow passage, and the rectangle cast gate be communicated with mold cavity, and the expansion end of described fan gate is connected with described rectangle cast gate.This laddering pouring gate structure can reduce generation and the distortion of cast gate place of weld mark.
Description
Technical field
The utility model relates to technical field of mold, particularly the laddering pouring gate structure of one and injection mold.
Background technology
Flat-plate plastic goods are when injection moulding, and the temperature difference of mold cavity, core is excessive, and because the melt pressing close to cold die cavity face cools down very soon, the bed of material pressing close to face, hot-die chamber then can continue to shrink, and the uneven of contraction will make plastic warpage.This can have influence on the precision of plastic products and can occur dislocation when assembling, and therefore how to reduce flat-plate plastic goods in process of injection molding, occurs that buckling deformation amount is one of important means improving Product Precision.And cast gate is in the end of running gate system, be the entrance that plastics enter mold cavity, the design of cast gate for plastic product forming and internal stress most important, position, the shape and size design of cast gate have a great impact the buckling deformation of plastic products.Therefore, in traditional Injection Mould Design, the form entering cast gate and fan gate can be adopted to fill, this filling mode produces the situation of torsional deformation after can improving plastic product forming more.But the design difficulty entering cast gate large more, can produce weld mark, can affect product quality after product molding; And when adopting fan gate, gate thickness is thinning gradually, gate end Pressure Drop and shear stress are comparatively large, and cast gate place can be caused to be out of shape.Thus making the percent defective after the injection moulding of conventional plastic goods high, loss is large; For the flat-plate plastic goods that required precision is higher, the mould of traditional design cannot produce qualified goods, reduces the adaptability of enterprise to market.
Summary of the invention
Based on this, unreasonable and affect the problem of plastic products injection moulding quality for solving gate design in above-mentioned conventional art, the utility model provides a kind of laddering pouring gate structure and injection mold.
Its technical scheme is as follows:
A kind of laddering pouring gate structure, comprises charging aperture, the runner be communicated with described charging aperture, and is communicated with the compound cast gate of described runner and mold cavity; Described compound cast gate comprises the fan gate with described flow passage, and the rectangle cast gate be communicated with mold cavity, and the expansion end of described fan gate is connected with described rectangle cast gate.
This laddering pouring gate structure designs the compound cast gate of novel fan gate and rectangle cast gate composition, when utilizing this compound cast gate to carry out filling melt, the material direction of watering of fan gate broadens gradually, lower thickness, melt enters die cavity by launch gradually fan-shaped, therefore, melt laterally can obtain evenly distribution, the internal stress of goods can be reduced, reduce distortion.And, rectangle cast gate is added in the tail side of fan gate, this design can improve the thinning and defect caused of fan gate thickness, make melt comparatively mild enter cavity, this filling mode effectively can reduce the Pressure Drop at cast gate place and the shear stress at cast gate place.This laddering pouring gate structure can reduce generation and the distortion of cast gate place of weld mark.
Below a kind of technical scheme is further described:
Further, described runner comprises sprue, and the runner that multiple and described sprue is communicated with, and each described runner is communicated with a described compound cast gate, and each described compound cast gate is corresponding with mold cavity is communicated with.Be designed to the form of multiple flow passages many compounds cast gate, multiple product can be poured into a mould simultaneously, increase work efficiency.
Further, described charging aperture is arranged in the middle part of described sprue, and each described runner is identical to the distance of corresponding described compound cast gate.When making injection melt, flow when melt can evenly wait in each runner.
Further, comprise a sprue, and two runners being symmetricly set in described sprue two ends, the two ends of each described runner are all connected with compound cast gate.Runner, compound cast gate and mold cavity are symmetrical arranged, raise the efficiency further, convenient and simple.
In addition, the utility model also provides a kind of injection mold, comprises laddering pouring gate structure as above.The injection mold with laddering pouring gate structure is provided, improves the product quality of injection mo(u)lding.
The utility model has following beneficial effect:
1, adopt laddering cast gate filling mode, decrease the buckling deformation amount of plastic products in process of injection molding, thus reduce the percent defective of product, improve economic benefit;
2, decrease Pressure Drop and the shear stress of cast gate section, improve the deformation at cast gate place;
3, overcome mould die trial repeatedly, repair a die on the impact of producing, greatly reduce the cost of Making mold and maintenance;
4, the practical problem because of flat-plate plastic production of articles is solved, applied widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of laddering pouring gate structure described in the utility model embodiment;
Fig. 2 is the partial structurtes schematic diagram of local A in Fig. 1.
Description of reference numerals: 100-charging aperture, 200-sprue, 300-runner, 400-compound cast gate, 410-fan gate, 420-rectangle cast gate, 500-mold cavity.
Detailed description of the invention
Below embodiment of the present utility model is described in detail:
As shown in Figure 1, the utility model provides a kind of laddering pouring gate structure, comprises charging aperture 100, the runner be communicated with charging aperture 100, and is communicated with the compound cast gate 400 of runner and mold cavity 500.As shown in Figure 2, this compound cast gate 400 comprises the fan gate 410 with flow passage, and the rectangle cast gate 420 be communicated with mold cavity 500, and the expansion end of fan gate 410 is connected with rectangle cast gate 420.
This laddering pouring gate structure designs the compound cast gate 400 of novel fan gate 410 and rectangle cast gate 420 composition, when utilizing this compound cast gate 400 to carry out filling melt, the material direction of watering of fan gate 410 broadens gradually, lower thickness, melt enters die cavity by launch gradually fan-shaped, therefore, melt laterally can obtain evenly distribution, the internal stress of goods can be reduced, reduce distortion.And, rectangle cast gate 420 is added in the tail side of fan gate 510, the defect that this design can be improved fan gate 410 lower thickness and cause, make melt comparatively mild enter cavity, effectively can reduce the Pressure Drop at cast gate place and the shear stress at cast gate place.This laddering pouring gate structure can reduce generation and the distortion of cast gate place of product weld mark.
Further, the runner of above-mentioned laddering pouring gate structure comprises sprue 200, and multiple runner 300 be communicated with sprue 200, each runner 300 is communicated with a compound cast gate 400, and each compound cast gate 400 is corresponding with mold cavity 500 is communicated with.Be designed to the form of multiple flow passages many compounds cast gate, multiple product can be poured into a mould simultaneously, increase work efficiency.Further, charging aperture 100 is arranged at sprue 200 medium position, and each runner 300 is identical to the distance of corresponding compound cast gate 400.When making injection melt, flow when melt can evenly wait in each runner.Particularly, above-mentioned laddering pouring gate structure can comprise a sprue 200, and two runners 300 being symmetricly set in these sprue 200 two ends, and the two ends of each runner 300 are all connected with compound cast gate 400.Runner, compound cast gate and mold cavity are symmetrical arranged, raise the efficiency further, convenient and simple.
In addition, the utility model also provides a kind of injection mold, comprises laddering pouring gate structure as above.The injection mold with laddering pouring gate structure is provided, the product quality of injection mo(u)lding can be improved.
The laddering pouring gate structure that the utility model also provides, the gate shape broken traditions, adopt the laddering compound cast gate of novel fan gate and the combination of rectangle cast gate, this laddering compound cast gate not only effectively can improve the buckling deformation situation of flat-type goods by experiment, also effectively improves the mechanical performance of flat-plate plastic goods after injection moulding.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this description is recorded.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (5)
1. a laddering pouring gate structure, is characterized in that, comprises charging aperture, the runner be communicated with described charging aperture, and is communicated with the compound cast gate of described runner and mold cavity;
Described compound cast gate comprises the fan gate with described flow passage, and the rectangle cast gate be communicated with mold cavity, and the expansion end of described fan gate is connected with described rectangle cast gate.
2. laddering pouring gate structure according to claim 1, it is characterized in that, described runner comprises sprue, and the runner that multiple and described sprue is communicated with, each described runner is communicated with a described compound cast gate, and each described compound cast gate is corresponding with mold cavity is communicated with.
3. laddering pouring gate structure according to claim 2, is characterized in that, described charging aperture is arranged in the middle part of described sprue, and each described runner is identical to the distance of corresponding described compound cast gate.
4. laddering pouring gate structure according to claim 3, is characterized in that, comprises a sprue, and two runners being symmetricly set in described sprue two ends, and the two ends of each described runner are all connected with compound cast gate.
5. an injection mold, is characterized in that, comprises the laddering pouring gate structure as described in claim 1-4 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171695.XU CN204673926U (en) | 2015-03-25 | 2015-03-25 | Laddering pouring gate structure and injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171695.XU CN204673926U (en) | 2015-03-25 | 2015-03-25 | Laddering pouring gate structure and injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204673926U true CN204673926U (en) | 2015-09-30 |
Family
ID=54173646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520171695.XU Expired - Fee Related CN204673926U (en) | 2015-03-25 | 2015-03-25 | Laddering pouring gate structure and injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204673926U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003583A (en) * | 2016-06-06 | 2016-10-12 | 广州市高级技工学校 | High-yield injection mold |
| CN106079255A (en) * | 2016-06-06 | 2016-11-09 | 广州市高级技工学校 | A kind of micro plastic mould being easy to produce |
| CN114953362A (en) * | 2022-07-04 | 2022-08-30 | 宁波青山青汽车部件有限公司 | Injection mold of interior trimming panel of automobile front hatch cover |
| CN115107240A (en) * | 2022-07-26 | 2022-09-27 | 常州沃克电器有限公司 | Injection molding pouring gate of car lamp dimming support and automatic removing device thereof |
-
2015
- 2015-03-25 CN CN201520171695.XU patent/CN204673926U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003583A (en) * | 2016-06-06 | 2016-10-12 | 广州市高级技工学校 | High-yield injection mold |
| CN106079255A (en) * | 2016-06-06 | 2016-11-09 | 广州市高级技工学校 | A kind of micro plastic mould being easy to produce |
| CN106079255B (en) * | 2016-06-06 | 2018-05-04 | 广州市高级技工学校 | A kind of micro plastic mould easy to produce |
| CN114953362A (en) * | 2022-07-04 | 2022-08-30 | 宁波青山青汽车部件有限公司 | Injection mold of interior trimming panel of automobile front hatch cover |
| CN115107240A (en) * | 2022-07-26 | 2022-09-27 | 常州沃克电器有限公司 | Injection molding pouring gate of car lamp dimming support and automatic removing device thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20210325 |