CN2778535Y - Pressure holding mechanism of preform injection machine - Google Patents
Pressure holding mechanism of preform injection machine Download PDFInfo
- Publication number
- CN2778535Y CN2778535Y CN 200420095691 CN200420095691U CN2778535Y CN 2778535 Y CN2778535 Y CN 2778535Y CN 200420095691 CN200420095691 CN 200420095691 CN 200420095691 U CN200420095691 U CN 200420095691U CN 2778535 Y CN2778535 Y CN 2778535Y
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- CN
- China
- Prior art keywords
- runner
- fluid channel
- plunger
- main body
- pressure
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a pressure holding mechanism of a plastic blank injection machine, which comprises a main body, wherein a plastic fluid channel is arranged in the main body; one end of the fluid channel is an outlet, and the other end of the fluid channel is an inlet; the outlet end of the fluid channel on the main body is connected with a nozzle; a connecting device which is connected with the head end of a spiral cylinder of the blank injection machine is arranged on the inlet end of the fluid channel of the main body. The main body is provided with a control valve of the fluid channel at one side adjacent to the inlet, and is provided with a plunger cylinder which is communicated with the fluid channel at one side adjacent to the outlet. A plunger is arranged in the plunger cylinder, and a pressure holding oil cylinder is connected with the plunger cylinder. The utility model is suitable for that after a screw rod of the blank injection machine is injected with adhesive, no pressure holding work is needed and the screw rod is retreated to premould to do the preparation for the next adhesive injection. The production period can be shortened (the original 7 seconds are reduced to 3.5 seconds), and the production efficiency and the economic benefit can be improved.
Description
Technical field
The utility model relates to the injection machine technical field, the pressure-keeping mechanism of the notes embryo machine of using on particularly a kind of special-purpose injection machine of the PET of production plastic bottle preform.
Background technology:
Annotating the embryo machine derives from injection machine.Notes embryo machine is the same with the control principle and the operation principle of injection machine, is the automation special equipment that is used for producing the PET plastic bottle preform but annotate the embryo machine.The process chart of annotating the embryo machine is as shown in Figure 1:
In process chart shown in Figure 1, the injection work step is meant: after plastic raw materials plastifies into molten condition, and the quick matched moulds of mold mechanism, high-voltage lock mould, injection in mould then.In the plastic raw materials plasticizing process, move after annotating the screw rod in the embryo machine barrel, after moving on to setting value, injection seat forward, the nozzle of annotating the embryo machine proceeds to mould, at this moment screw rod moves forward and promotes the plastics liquation and inject mould from nozzle forward, and then need pressurize in mould after injection is intact, the purpose one of pressurize is to prevent the liquation hydrostomia, the 2nd, and when beginning to cool down, the liquation in mould can in time die cavity be filled up in the liquation injection of outside, to guarantee the quality of bottle embryo.Traditional notes embryo machine is that screw rod also continues to do pressurize work in position after injection is intact, the dwell time up to setting, just retreat, and preformed is for the injection of next process cycle is prepared.Therefore, a technological process needs long time, causes productivity ratio low, thus the economic benefit of having influence on.
Summary of the invention:
Task of the present utility model is to overcome that existing to annotate embryo machine process time long, productivity ratio is low, the shortcoming that production cost is high, provide a kind of being installed in to have now on the barrel head of annotating the embryo machine, make it process time shortening, production efficiency height, thereby can significantly reduce production costs a kind of pressure-keeping mechanism that is used to annotate the embryo machine of increasing economic efficiency.
To achieve the above object, the utility model has adopted following technical measures:
A kind of pressure-keeping mechanism of annotating the embryo machine is characterized in that having a body, is provided with the plastic cement runner in the body, and an end of runner is outlet, and the other end is import, and the runner exit end of body is connected with a nozzle; The runner entrance point of body is provided with jockey, is used for the barrel head end of body and notes embryo machine is linked; On body,, be provided with the runner by-pass valve control near runner import one side; Near runner exit one side, communicating with runner is provided with a plunger case, is provided with plunger in the plunger case on body, and a pressurize oil cylinder or cylinder link to each other with this plunger case.
No matter adopted the utility model technology, be that existing old notes embryo machine is undergone technological transformation, and still directly is configured on the new notes embryo machine, do not need to do pressurize work again after the notes embryo machine screw rod injection, prepares for the next round injection but retreat preformed.Thereby the production cycle is shortened greatly, improved production efficiency and economic benefit greatly.
Below in conjunction with drawings and Examples the utility model is further described.
Description of drawings:
Accompanying drawing 1 is for annotating the process chart of embryo machine and injection machine:
2 practical cross-sectional view of accompanying drawing.
The specific embodiment:
Embodiment
The pressure-keeping mechanism of notes embryo machine as shown in Figure 2 is made of body 1, nozzle 10, jockey 5, plunger case 7, plunger 8, by-pass valve control 6 etc.
Be provided with plastic cement runner 2 in the body 1, an end of runner 2 is outlet 3, outlet 3 ends of body 1 nozzle 10 that links to each other.The other end of runner 2 is import 4, and this end of body 1 is provided with jockey 5, is used for and the barrel head end of annotating the embryo machine links.On body 1,, be provided with runner by-pass valve control 6 near import 4 one sides.Near exporting 3 one sides, communicating with runner 2 is provided with plunger case 7, is provided with plunger 8, one pressurize oil cylinders 9 in the plunger case 7 and links to each other with this plunger case 7 on body 1.
Runner by-pass valve control 6 is the hydraulic control gate valve, also can be air pressure control gate valve.
Jockey 5 be a kind of recessed/protruding docking facilities 51, also can be flange connecting apparatus, or both combinations.
The most of aperture of runner 2 and the bore of import 4 are thicker, and be narrower in the aperture of runner by-pass valve control 6 place's runners 2, forms wide-mouth and go into, and wide-mouth goes out, and control place is narrow, and the flashboard of gate valve can be done smallerly like this, has the control sensitivity, the advantage of good reliability.
Operation principle of the present utility model is:
During use, jockey 5 links to each other with the barrel head end of annotating the embryo machine, and nozzle 10 is facing to mould.In annotating the embryo technological process, after the plastics plasticizing, quick matched moulds, high-voltage lock mould, the injection seat reach, the utility model is thereupon near mould, and screw rod moves forward simultaneously, promotes the plastics liquation and injects mould by nozzle forward, move behind the rapid preformed of screw rod, then, for next production cycle injection is prepared.At this moment, the gate of gate valve 6 of the present utility model is closed runner 2, liquation in the utility model runner 2 can not be retreated, 9 work of pressurize oil cylinder, it is downward to promote pressurize plunger 8, make the plastics liquations in the runner 2 press to mould, can prevent that on the one hand the previous liquation that injects refluxes in the die cavity, the space of die cavity when being full of previous injection liquation on the other hand and beginning to cool down.Pressurize is behind setting-up time, and the gate of gate valve 6 is opened and resetted, and pressurize plunger 8 lifts, and prepares for injection, the pressurize of next round, goes round and begins again.
Claims (4)
1, a kind of pressure-keeping mechanism of annotating the embryo machine, it is characterized in that having a body (1), be provided with plastic cement runner (2) in the body (1), one end of runner (2) is outlet (3), the other end of runner (2) is import (4), runner exit (3) end of body (1) is connected with a nozzle (10), and runner import (4) end of body (1) is provided with jockey (5), is used for the barrel head end of body (1) and notes embryo machine is linked; Go up near import (4) one sides at body (1), be provided with runner by-pass valve control (6); Go up near outlet (3) one sides at body (1), communicating with runner (2) is provided with a plunger case (7), is provided with plunger (8) in the plunger case (7), and a pressurize oil cylinder or cylinder (9) link to each other with this plunger case (7).
2,, it is characterized in that described runner (2) is narrower than the aperture that runner (2) is gone up other parts in the aperture that runner by-pass valve control (6) is located according to the pressure-keeping mechanism of the described notes embryo of claim 1 machine.
3,, it is characterized in that described runner by-pass valve control (6) is hydraulic pressure or air pressure control gate valve according to the pressure-keeping mechanism of claim 1 or 2 described notes embryo machines.
4, according to the pressure-keeping mechanism of claim 1 or 2 described notes embryo machines, it is characterized in that described jockey (5) be a kind of recessed/protruding docking facilities (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095691 CN2778535Y (en) | 2004-11-26 | 2004-11-26 | Pressure holding mechanism of preform injection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095691 CN2778535Y (en) | 2004-11-26 | 2004-11-26 | Pressure holding mechanism of preform injection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2778535Y true CN2778535Y (en) | 2006-05-10 |
Family
ID=36752623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420095691 Expired - Lifetime CN2778535Y (en) | 2004-11-26 | 2004-11-26 | Pressure holding mechanism of preform injection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2778535Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108058377A (en) * | 2017-12-21 | 2018-05-22 | 广州市爱司凯科技股份有限公司 | Add sand sending device for 3D printing equipment |
-
2004
- 2004-11-26 CN CN 200420095691 patent/CN2778535Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108058377A (en) * | 2017-12-21 | 2018-05-22 | 广州市爱司凯科技股份有限公司 | Add sand sending device for 3D printing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141126 Granted publication date: 20060510 |