CN203994515U - A kind of injecting mechanism of injection machine - Google Patents
A kind of injecting mechanism of injection machine Download PDFInfo
- Publication number
- CN203994515U CN203994515U CN201420437614.1U CN201420437614U CN203994515U CN 203994515 U CN203994515 U CN 203994515U CN 201420437614 U CN201420437614 U CN 201420437614U CN 203994515 U CN203994515 U CN 203994515U
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- China
- Prior art keywords
- runner
- injection machine
- injecting mechanism
- cold burden
- slag well
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Abstract
The utility model discloses a kind of injecting mechanism of injection machine, comprise gun tube system, flow passage system and mold system, described gun tube system comprises gun tube, big gun mouth, described flow passage system comprises that purt is chewed, shell, runner, runner sidewall, cast gate, cold burden groove, described mold system forms die cavity, flow passage system is chewed with the big gun mouth of gun tube system and is connected by purt, by cast gate, is connected with the die cavity of mold system.Injecting mechanism of the present utility model, by slag well being set at runner sidewall, allowing be attached to the cooling plastics of runner shell early stage and is absorbed by slag well, better stops the generation of the product defectses such as cold burden spot, weld mark, has improved the yields of injection-molded item.
Description
Technical field
The utility model relates to injection machine technical field, particularly, relates to a kind of injecting mechanism of injection machine.
Background technology
Injection machine is to utilize mould for plastics to make the main former of the plastic products of various shapes thermoplastic or thermosetting material.Injection machine, according to the arrangement mode of injection device and clamping apparatus, can be divided into vertical, horizontal and vertical sleeping combined type.Injection machine have can one-shot forming complicated, the size of external form accurately or with the ability of the dense plastic products of the quality of metal insert, be widely used in national defence, electromechanics, automobile, communications and transportation, building materials, packing, agricultural, culture, education and public health and people's daily life every field.The today developing rapidly in plastics industry, and though injection machine quantitatively or in kind, all occupy critical role, become in current plastics machinery, increase the fastest, one of machine that production quantity is maximum.
The injecting mechanism of injection machine conventionally by gun tube system,, flow passage system and mold system etc. form.Flow passage system be molten plastic (abbreviation melt) from big gun mouth to die cavity must channel, comprise sprue, runner and cast gate.Sprue, also referred to as main running channel, note road or sprue, refers to from ejaculator nozzle and starts at the part that mould sprue bush contacts, to the runner till runner.This part is that melt enters the part of flowing through at first after mould.Runner, also referred to as minute running channel or an inferior running channel, can be divided into the first runner, the second runner again with Design of Dies.Runner is the transitional region between sprue and cast gate, can make the flow direction of melt obtain mild conversion; For multiple-cavity mold, there are uniform distribution plastics to the function of each die cavity simultaneously.Cast gate is also referred to as charging aperture.Being the narrow and small port between runner and die cavity, is also the thin part of the shortest and the smallest meat.Effect is utilize to tighten flow surface and makes plastics reach the effect of acceleration, and high shear rate can make plastic flow property good (because the shear of plastics causes rare characteristic); The intensification effect of viscous heating also has the material temperature of lifting to fall low viscous effect.After moulding, cast gate solidifies sealing at first, has and prevents that plastics from refluxing and avoiding the too fast function that makes products formed produce systolic depression of cavity pressure decline.After moulding, conveniently wipe out with separating flow tract system and plastic.Slag well claims again cold slug well, in plastic injection moulding mould, to be used for cooling plastic (cold burden) head that store injection interim produces, prevent cold burden from entering die cavity and affect plastic part quality or stop up cast gate, and making melt can successfully be full of a structure of die cavity.
Generally speaking, the plastic cement edge frame product that injection machine is produced, except the very simple product of minority geometry, occurs on most plastic, especially uses many valve gated molds and mold insert greatly and the part with complicated structure.Weld mark not only makes the outward appearance of plastic be affected, and makes the mechanical property of plastic also be subject to different impacts.Not only affect outward appearance, also can cause product strength not enough.Weld mark place can be subject to external force and cause product fracture.Cause the reason of weld mark to have a plurality of, one of them major reason is: the mobility of melt is not good, and the speed Yu of melt forward in mold filling process flows that Yu is slow, and temperature is more and more colder, and when melt merges, flow front temperature is too low, shines into syncretizing effect bad.At present, by technical staff, take following several solution: 1. increase gas extraction system, subsidiary products is walked glue; 2. at weld mark place, increase flash groove, allow cold glue at first overflow from breach; 3. increase mold temperature, make the cooling velocity of mould slack-off.4. at sprue end, or compared with long shunt road end, slag well is set, prevents that cold burden from entering die cavity and affecting plastic part quality or stop up cast gate, and make melt can successfully be full of a structure of die cavity.But above-mentioned these solutions, have just improved problem points partly, can not guarantee that cold burden does not enter die cavity completely, from root, do not deal with problems, and very easily cause product to produce new defect.
Utility model content
Defect and problem for prior art, the utility model provides a kind of injecting mechanism of injection machine, more effectively reduce the probability that cold burden enters die cavity, when maximizing the probability that reduces die cavity cold burden, improve melt and enter the mobility before die cavity, keep speed and the temperature of melt forward in mold filling process, guarantee syncretizing effect, better stop the generation of the product defectses such as cold burden spot, weld mark.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of injecting mechanism of injection machine, comprise gun tube system, flow passage system and mold system, described gun tube system comprises gun tube, big gun mouth, described flow passage system comprises that purt is chewed, runner, runner sidewall, cast gate, cold burden groove, described mold system forms die cavity, flow passage system is chewed with the big gun mouth of gun tube system and is connected by purt, by cast gate, is connected with the die cavity of mold system, and described cold burden groove comprises the slag well that is arranged at runner sidewall.
Further, described in, be arranged at slag well quantity >=1 of runner sidewall.
Further, the slag well of described runner sidewall is evenly distributed in flow field end.
Further, described cold burden groove also comprises the slag well that is arranged on sprue end.
Further, described cold burden groove also comprises the slag well that is arranged on runner end.
Further, described runner sidewall is metal material.
Further, the metal material of described runner sidewall is steel.
The technical solution of the utility model, take into full account because plastic warp gun barrel heating and melting becomes liquid and enter runner and enter again in the process of die cavity, because runner sidewall can be taken away the heat of melt to a certain extent, thereby make melt form cooling layer near runner sidewall, finally, the cold burden of cooling layer enters die cavity, cause and produce cold burden spot, fill the problem such as bad and cause the bad problem of product, from existing injection machine, cold burden groove is only arranged to sprue end or runner end is different, creatively at runner sidewall, slag well is set, the cold burden of cooling layer will be formed early stage near runner sidewall, be absorbed in slag well, maximization has reduced the probability of die cavity cold burden.Such setting, has features simple structure, moulding feature easily, particularly because it just excludes cold burden before melt enters mold cavity, thereby can not bring new defect or apparent flaw to plastic products.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of the injecting mechanism of existing injection machine;
Fig. 2 is the structural representation of the injecting mechanism embodiment of the utility model injection machine;
Wherein: 1. big gun mouth; 2. purt is chewed; 3. runner; 4. runner sidewall; 5. die cavity; 6. slag well.
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described.Obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Shown in Fig. 1, Fig. 2, the injecting mechanism of a kind of injection machine provided by the utility model, comprise gun tube system, flow passage system and mold system, described gun tube system comprises gun tube, big gun mouth 1, described flow passage system comprises that purt chews 2, runner 3, runner sidewall 4, cast gate, cold burden groove, described mold system forms die cavity, flow passage system is chewed 2 by purt and is connected with the big gun mouth 1 of gun tube system, by cast gate, be connected with the die cavity 5 of mold system, described cold burden groove comprises the slag well 6 that is arranged at runner sidewall 4.By slag well 6 is set herein, can, by the cold burden of early stage because of the cooling mobility of heat loss and temperature reduction, be absorbed in 6 li of slag wells.
Described slag well 6 quantity >=1 that are arranged at runner sidewall 4.By a plurality of slag wells 6 are set, can further be absorbed in the cold burden constantly producing in runner 3, keep speed, the temperature uniformity of melt.
The slag well 6 of described runner sidewall is evenly distributed in runner 3 ends.At runner 3 ends, soon dock with cast gate, the character of melt has remarkable impact to the quality of plastic products herein.A plurality of slag wells 6 are evenly set herein, had both reduced technology difficulty and the cost of manufacture of making runner sidewall 4 slag wells 6, also can reach good making plastic products effect.
Described cold burden groove also comprises the slag well that is arranged on sprue end.At sprue end, slag well being set, is the common way of the injecting mechanism of injection machine.In the present embodiment, although arrange slag well 6 at runner sidewall 4 early stage, play good effect, but still can slag well be set at sprue end, played multiple security.In like manner, described cold burden groove also can comprise the slag well that is arranged on runner end.
For characteristics such as the good stability of metal material, plasticity, heat resistances, consider, described runner sidewall 4 is metal material.
For the universality of steel, the metal material of described runner sidewall 4 is steel.
Finally it should be noted that: the above embodiment is only preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. the injecting mechanism of an injection machine, comprise gun tube system, flow passage system and mold system, it is characterized in that, described gun tube system comprises gun tube, big gun mouth, described flow passage system comprises that purt is chewed, runner, runner sidewall, cast gate, cold burden groove, and described mold system forms die cavity, and flow passage system is chewed with the big gun mouth of gun tube system and is connected by purt, by cast gate, be connected with the die cavity of mold system, described cold burden groove comprises the slag well that is arranged at runner sidewall.
2. the injecting mechanism of injection machine according to claim 1, is characterized in that, described in be arranged at slag well quantity >=1 of runner sidewall.
3. the injecting mechanism of injection machine according to claim 2, is characterized in that, the slag well of described runner sidewall is evenly distributed in flow field end.
4. the injecting mechanism of injection machine according to claim 3, is characterized in that, described cold burden groove also comprises the slag well that is arranged on sprue end.
5. the injecting mechanism of injection machine according to claim 4, is characterized in that, described cold burden groove also comprises the slag well that is arranged on runner end.
6. the injecting mechanism of injection machine according to claim 5, is characterized in that, described runner sidewall is metal material.
7. the injecting mechanism of injection machine according to claim 6, is characterized in that, the metal material of described runner sidewall is steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420437614.1U CN203994515U (en) | 2014-08-05 | 2014-08-05 | A kind of injecting mechanism of injection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420437614.1U CN203994515U (en) | 2014-08-05 | 2014-08-05 | A kind of injecting mechanism of injection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203994515U true CN203994515U (en) | 2014-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420437614.1U Expired - Fee Related CN203994515U (en) | 2014-08-05 | 2014-08-05 | A kind of injecting mechanism of injection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203994515U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325630A (en) * | 2014-10-16 | 2015-02-04 | 苏州华冲精密机械有限公司 | Quick forming mould for plastic packing box |
-
2014
- 2014-08-05 CN CN201420437614.1U patent/CN203994515U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325630A (en) * | 2014-10-16 | 2015-02-04 | 苏州华冲精密机械有限公司 | Quick forming mould for plastic packing box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen brilliant mould Co., Ltd. Assignor: Yu Dan Contract record no.: 2014440020510 Denomination of utility model: Injection mechanism of injection machine Granted publication date: 20141210 License type: Exclusive License Record date: 20141231 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150805 |
|
| EXPY | Termination of patent right or utility model |