CN202439178U - Plastic modified device - Google Patents
Plastic modified device Download PDFInfo
- Publication number
- CN202439178U CN202439178U CN2012200477727U CN201220047772U CN202439178U CN 202439178 U CN202439178 U CN 202439178U CN 2012200477727 U CN2012200477727 U CN 2012200477727U CN 201220047772 U CN201220047772 U CN 201220047772U CN 202439178 U CN202439178 U CN 202439178U
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- China
- Prior art keywords
- piston
- runner
- piston motion
- mold cavity
- cavity
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- Expired - Fee Related
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- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a plastic modified device. A plastic modified device body is provided with an input runner used to communicate with an injection molding machine nozzle, an output runner used to communicate with a mold cavity of an injection mold, and a piston motion cavity for operating a piston. The input runner and the output runner are respectively communicated with the piston motion cavity. The piston motion cavity is provided with a piston. The plastic modified device can push the melt in the mold cavity to flow repeatedly and continuously freeze on the inner surface of the mold cavity, so the flowing melt becomes less gradually until the melt in the entire mold cavity achieves complete cooling and solidification, consequently multilayer orientation samples are formed and plastic polymer products greatly improved in flow direction function can be obtained.
Description
Technical field
The utility model relates to a kind of plastic products and produces apparatus, specifically a kind of modifying plastics device.
Background technology
Plastic products have good physics and machining property, and stronger corrosion resistance is arranged, and characteristics such as good electrical insulating property and designability are arranged, and have been widely used in all trades and professions.The method machine-shaping that plastic products can adopt injection moulding usually, extrude or suppress.Wherein, injection mo(u)lding is the thermophysical property that utilizes plastics, adds material the feed inlet barrel from hopper, and barrel is outer to be heated by heating collar; Make the material fusion, the screw rod of driven in rotation under the power motor effect outside is housed in barrel, material is under the effect of screw rod; Be fed forward and compacting along screw channel, material heats little by little plasticizing under the double action with screw rod shearing, fusion and homogenizing outside; When screw rod rotated, material was shifted the material of fusion onto on the head of screw rod under the effect of screw channel frictional force and shearing force; Meanwhile, screw rod is retreated under the reaction of material, makes screw head form the storing space; Accomplish plasticizing process, then, screw rod is under the effect of the piston thrust of injection cylinder; With high speed, high pressure, the fused materials in the storage compartment is expelled to through nozzle in the die cavity of mould, the melt in the die cavity is through pressurize and cooling back solidifying and setting.After the die sinking, the goods that typing is good are ejected from mould.Plastics can receive the influence of various factors such as sensitivity such as fusion speed, melt viscosity, shear rate in the extrusion molding process, these factors can become the reduction of plastics polymerization, influence the mechanical property of plastic products.
The utility model content
The purpose of the utility model just provides a kind of modifying plastics device, to improve the mechanical property of injection-molded item.
The utility model is achieved in that a kind of modifying plastics device; In body, have the charging runner that is used to be communicated with the injection machine nozzle, be used to be communicated with discharging runner and the piston motion chamber of operation piston of the mold cavity of injection mold, said charging runner and said discharging runner are connected with said piston motion chamber respectively; In said piston motion chamber, piston is housed.
The utility model is arranged between injection machine and the injection mold; The polymer melt that injection machine is good with preformed is expelled in the mold cavity of injection mold through after this reforming apparatus again; The reciprocating motion of piston in piston motion chamber; Make in the cooling procedure of melt in mold cavity; Receive the effect of continual shear stress, can change the existence of polymer molecular chain in plastic products, thereby change and improve the mechanical property of material and goods through this shear stress field that adds.
In said body, be provided with single channel charging runner, single channel discharging runner and single channel piston motion chamber, in said piston motion chamber, a piston be housed.
In said body, be provided with two-way charging runner, two-way discharging runner and two-way piston motion chamber, in every road piston motion chamber, a piston be housed.
Said two-way charging runner is connected to a charging aperture altogether.
The utility model can promote melt and in mold cavity, flow repeatedly; And constantly freeze at the die cavity inner surface; Make flowable melt tail off gradually, the complete cooling curing of the melt in whole die cavity forms multilayer oriented sample thus; Acquisition performance on flow direction has the plastic polymer goods of bigger improvement, thereby has improved the mechanical property of plastic products.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1, injection machine nozzle, 2, the charging runner, 3, piston, 4, the discharging runner, 5, mold cavity, 6, body, 7, piston motion chamber.
The specific embodiment
As shown in Figure 1, have lambdoid two-way charging runner 2 on body 6 right sides, two-way charging runner 2 is connected to a charging aperture altogether, in order to be communicated with injection machine nozzle 1.Have two-way discharging runner 4 in body 6 left sides, in order to be communicated with upper and lower two plastic passages that communicate with mold cavity 5 on the injection mold respectively.Have a upright operation cavity at the middle part of body 6, form the two-way piston motion chamber 7 of upper and lower general layout through the dividing plate that is arranged at the middle part.In two-way piston motion chamber 7, a piston that can move up and down 3 is housed respectively.Two-way charging runner was connected to the outer end in two piston motion chambeies 7 in 2 minutes, and the discharging runner of two-way was connected to the inner end in two piston motion chambeies 7 in 4 minutes.Form the modifying plastics device between injection machine and injection mold thus.
Claims (4)
1. modifying plastics device; It is characterized in that; In body (6), have the charging runner (2) that is used to be communicated with the injection machine nozzle, be used to be communicated with discharging runner (4) and the piston motion chamber (7) of operation piston of the mold cavity of injection mold, said charging runner (2) and said discharging runner (4) are connected with the said piston chamber (7) of moving respectively; In said piston motion chamber (7), piston (3) is housed.
2. modifying plastics device according to claim 1; It is characterized in that; In said body (6), be provided with single channel charging runner (2), single channel discharging runner (4) and single channel piston motion chamber (7), in said piston motion chamber (7), a piston (3) be housed.
3. modifying plastics device according to claim 1; It is characterized in that; In said body (6), be provided with two-way charging runner (2), two-way discharging runner (4) and two-way piston motion chamber (7), in every road piston motion chamber (7), a piston (3) be housed.
4. modifying plastics device according to claim 3 is characterized in that, said two-way charging runner (2) is connected to a charging aperture altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200477727U CN202439178U (en) | 2012-02-15 | 2012-02-15 | Plastic modified device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200477727U CN202439178U (en) | 2012-02-15 | 2012-02-15 | Plastic modified device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202439178U true CN202439178U (en) | 2012-09-19 |
Family
ID=46820632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200477727U Expired - Fee Related CN202439178U (en) | 2012-02-15 | 2012-02-15 | Plastic modified device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202439178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108673844A (en) * | 2018-06-22 | 2018-10-19 | 北京化工大学 | It is a kind of passively to move back core formula layering injection molding |
-
2012
- 2012-02-15 CN CN2012200477727U patent/CN202439178U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108673844A (en) * | 2018-06-22 | 2018-10-19 | 北京化工大学 | It is a kind of passively to move back core formula layering injection molding |
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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: 20120919 Termination date: 20150215 |
|
| EXPY | Termination of patent right or utility model |