CN202062598U - Expanded telescopic joint mold structure - Google Patents
Expanded telescopic joint mold structure Download PDFInfo
- Publication number
- CN202062598U CN202062598U CN2011201478205U CN201120147820U CN202062598U CN 202062598 U CN202062598 U CN 202062598U CN 2011201478205 U CN2011201478205 U CN 2011201478205U CN 201120147820 U CN201120147820 U CN 201120147820U CN 202062598 U CN202062598 U CN 202062598U
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- telescopic joint
- flow path
- cast gate
- mold plate
- hot flow
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Abstract
An expanded telescopic joint mold structure belongs to the technical field of forming molds of pipe fittings. The expanded telescopic joint mold structure comprises an upper mold plate, a middle mold plate and a lower mold plate which are sequentially arranged from top to bottom in matching mode. An injection molding inlet is disposed on the upper mold plate in matching mode, a quadrate hot runner is disposed in the middle mold plate, four corners of the quadrate hot runner are respectively in an arc structure, an annular transition gate is arranged at one end of the hot runner close to the tip, and a gate connected to a cavity inside a lower mold plate is arranged at the other tip of the rot runner. Based on the mold flow analysis technology, by choosing the annular transition gate structure which is reasonable in rubber feeding, direction of rubber feeding is ensured, speed is uniform and stable, molecular orientation inside products is enabled to be uniform, generated contraction deformation is uniform, and products have no welded seam. By adopting the hot runner rubber feeding technology matched with the annular transition rubber feeding gate mold, manufactured products have small stress, uniform orientation, small contraction deformation, stable dimensions, out-of-roundness controllable within limit of tolerance of products, and stable and reliable quality.
Description
Technical field
The utility model patent belongs to the formation of tubes technical field of mold, is specially PE water-drainage tube part expansion telescopic joint mould structure.
Background technology
The use field of PE pipe is extensive, and special is the regeneration product of polyvinyl-chloride drainage pipe and cast iron pipe drainpipe in the draining field.In recent years the PE pipeline has obtained development rapidly at drainage pipeline, so the requirement aspect pipe fitting also more and more trends towards functionalization, the fit dimension precision of all kinds of pipe fittings is had higher requirement.
PE water-drainage tube part expansion telescopic joint is mainly used in the construction drainage, is owing to the temperature difference causes pipeline to stretch connector to be become flexible at the soil stack road to leak and custom-designed a kind of special pipe fitting.Product one end adopts the sealing socket joint to connect, and the other end then adopts butt joint of PE hot melt or electric smelting to connect.The hot melt docking mode of thin-wall construction pipe fitting is had higher requirement to the out-of-roundness size of product.At big specification product, common mould gate advances the glue design can cause that into the glue resistance is big, and it is inhomogeneous to advance glue, causes the product stress deformation serious, and it is bigger to show as the product out-of-roundness, influences the connection reliability of product, has hidden danger of quality.By introducing the mold flow analysis technology, science design hot flow path advances the glue pouring gate structure, can effectively control into glue uniformity, makes that into the glue orientation is even, reduces internal stress, and the product stress deformation is little, injection moulding dimensional accuracy height.
The utility model content
At the above-mentioned problems in the prior art, the purpose of this utility model is to design the technical scheme that a kind of PE water-drainage tube part expansion telescopic joint mould structure is provided, the product size, the steady quality, reliable that adopt this mould to make.
Described a kind of expansion telescopic joint mould structure, comprise the cope match-plate pattern that is equipped with from top to bottom successively, middle template and lower bolster, be equipped with the injection moulding import on the described cope match-plate pattern, it is characterized in that being provided with square hot flow path in the described middle template, described square hot flow path is made as arcuate structure for four jiaos, hot flow path one end proximal head is provided with annular transition cast gate, and another termination of hot flow path is provided with the cast gate that is connected with die cavity in the lower bolster.
Described a kind of expansion telescopic joint mould structure is characterized in that described hot flow path comprises flow distribution plate and is arranged on heating collar on the flow distribution plate, and heating collar is connected with external power by the power interface of mould housing side.
Described a kind of expansion telescopic joint mould structure is characterized in that the wall thickness of described annular transition cast gate place near cast gate, and is thick away from cast gate.
Described a kind of expansion telescopic joint mould structure is characterized in that being equipped with the import cover in the described injection moulding import.
Above-mentioned a kind of expansion telescopic joint mould structure, comprise the cope match-plate pattern that is equipped with from top to bottom successively, middle template and lower bolster, be equipped with the injection moulding import on the described cope match-plate pattern, be provided with square hot flow path in the middle template, described square hot flow path is made as arcuate structure for four jiaos, hot flow path one end proximal head is provided with annular transition cast gate, and another termination of hot flow path is provided with the cast gate that is connected with die cavity in the lower bolster.The utility model is by the mold flow analysis technology, and the cast gate design of analysis science selects the rational annular transition pouring gate structure of glue; Adopt the nearly cast gate thick uniform annular transition cast gate of glue wall thickness transition profile that advances of cast gate thin, far away to advance the rubber moulding formula, guarantee that the glue direction is advanced in materials flow, speed is consistent stablize, make product interior molecules orientation unanimity, produce contraction deformation unanimity, and the product weldless stitches; Quote hot flow path and advance the glue technology, avoid runner long or advance glue off-centre, reduce injection moulding and advance the glue resistance, effectively reduce the product internal stress, reduce the product stress deformation.Adopting hot flow path to advance the glue technology, to cooperate annular transition to advance the product stress that the glue valve gated mold makes little, and orientation is consistent, and contraction distortion is little, dimensionally stable, and out-of-roundness can be controlled in the product margin of tolerance, steady quality, reliable.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 overlooks the sectional structure schematic diagram for the utility model.
Among the figure: 1-cope match-plate pattern, 1a-injection moulding import, template among the 2-, 2a flow distribution plate, 2b-heating collar, 2c-cast gate, 3-lower bolster, 3a-die cavity, 4-power interface.
The specific embodiment
The invention will be further described below in conjunction with Figure of description, and provide the specific embodiment.
Shown in Fig. 1-2, a kind of expansion telescopic joint mould structure, comprise the cope match-plate pattern 1, middle template 2 and the lower bolster 3 that are equipped with from top to bottom successively, be equipped with injection moulding import 1a on the described cope match-plate pattern 1, be provided with square hot flow path in the middle template 2, described square hot flow path is made as arcuate structure for four jiaos, and hot flow path one end proximal head is provided with annular transition cast gate, another termination of hot flow path be provided with lower bolster (3) in the cast gate 2c that is connected of die cavity 3a.Described hot flow path comprises flow distribution plate 2a and is arranged on heating collar 2b on the flow distribution plate 2a that heating collar 2b is connected with external power by the power interface 4 of mould housing side.Annular transition cast gate place is near the wall thickness of cast gate 2c, and 2c is thick away from cast gate.Be equipped with the import cover on the injection moulding import 1a, increase the service life.
This PE water-drainage tube part expansion telescopic joint D160 injection forming mold comprises mould housing and the core rod that is mated, be provided with hot flow path in the die cavity of mould housing, avoid runner long or advance the glue eccentricity issues, reduce injection moulding and advance the glue resistance, effectively reduce the product internal stress, reduce the product stress deformation; By introducing the mold flow analysis technology, analyse rational cast gate design scientifically; Select the more rational annular transition pouring gate structure of glue, adopt the nearly cast gate thick uniform annular transition cast gate of glue wall thickness transition profile that advances of cast gate thin, far away to advance the rubber moulding formula, guaranteeing that the glue direction is advanced in materials flow, speed is consistent stablizes, the products obtained therefrom internal stress is little, the molecularly oriented unanimity produces volume contraction deformation unanimity, and product weldless seam; Verify by mold flow analysis, adopting hot flow path to advance the glue technology, to cooperate the rubber moulding formula of advancing of annular transition pouring gate structure be scientific and effective, this advances the design of rubber moulding formula and helps reducing into glue resistance, make that the product internal stress is little, the distribution of orientations unanimity, dimensionally stable, out-of-roundness can be controlled in the product margin of tolerance.Adopt constant product quality that this mould makes, reliable.
Claims (4)
1. expansion telescopic joint mould structure, comprise the cope match-plate pattern (1) that is equipped with from top to bottom successively, middle template (2) and lower bolster (3), be equipped with injection moulding import (1a) on the described cope match-plate pattern (1), it is characterized in that being provided with square hot flow path in the described middle template (2), described square hot flow path is made as arcuate structure for four jiaos, hot flow path one end proximal head is provided with annular transition cast gate, another termination of hot flow path be provided with lower bolster (3) in the cast gate (2c) that is connected of die cavity (3a).
2. a kind of expansion telescopic joint mould structure according to claim 1, it is characterized in that described hot flow path comprises flow distribution plate (2a) and is arranged on heating collar (2b) on the flow distribution plate (2a), heating collar (2b) is connected with external power by the power interface (4) of mould housing side.
3. a kind of expansion telescopic joint mould structure according to claim 1 is characterized in that the wall thickness of described annular transition cast gate place near cast gate (2c), and (2c) is thick away from cast gate.
4. a kind of expansion telescopic joint mould structure according to claim 1 is characterized in that being equipped with the import cover in the described injection moulding import (1a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201478205U CN202062598U (en) | 2011-05-11 | 2011-05-11 | Expanded telescopic joint mold structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201478205U CN202062598U (en) | 2011-05-11 | 2011-05-11 | Expanded telescopic joint mold structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202062598U true CN202062598U (en) | 2011-12-07 |
Family
ID=45056475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201478205U Expired - Lifetime CN202062598U (en) | 2011-05-11 | 2011-05-11 | Expanded telescopic joint mold structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202062598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922631A (en) * | 2012-11-07 | 2013-02-13 | 上海力塑模塑科技有限公司 | Method for processing cold-hot water pipe of turbulent flow polyurethane (PUR) foaming mold of automobile |
-
2011
- 2011-05-11 CN CN2011201478205U patent/CN202062598U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922631A (en) * | 2012-11-07 | 2013-02-13 | 上海力塑模塑科技有限公司 | Method for processing cold-hot water pipe of turbulent flow polyurethane (PUR) foaming mold of automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |