CN201275860Y - Opening and closing die hydraulic circuit system of injection moulding machine - Google Patents
Opening and closing die hydraulic circuit system of injection moulding machine Download PDFInfo
- Publication number
- CN201275860Y CN201275860Y CNU2008201862246U CN200820186224U CN201275860Y CN 201275860 Y CN201275860 Y CN 201275860Y CN U2008201862246 U CNU2008201862246 U CN U2008201862246U CN 200820186224 U CN200820186224 U CN 200820186224U CN 201275860 Y CN201275860 Y CN 201275860Y
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- reversal valve
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Abstract
The utility model relates to an open-close mould hydraulic circuit system of injection molding machine; according to the technical proposal provided by the utility model, the open-close mould hydraulic circuit system of an injection molding machine mainly comprises a closing reversal valve, a closing oil cylinder, a differential brake reversal valve, a rapid oil return valve, a rapid oil return reversal valve and a guide reversal valve which are connected through pipelines; the open-close mould hydraulic circuit system of injection molding machine has the advantages that the mould opening and closing time of injection molding machine is reduced, and the production efficiency is improved.
Description
Technical field
The utility model relates to a kind of hydraulic circuit system, especially a kind of injection machine folding mould hydraulic circuit system.
Background technology
Be meeting the market requirement, improve the production efficiency of injection machine, save the folding mould time, original folding moulding oil road is an action of a valve control folding mould part, oil return all needs by getting back to fuel tank after oil return valve behind the main valve, and difficulty is accomplished to reduce the valve latus rectum and saved cost.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of folding mould time of injection machine, injection machine folding mould hydraulic circuit system of enhancing productivity of reducing is provided.
The technical scheme that provides according to the utility model; described system comprises the matched moulds reversal valve that links to each other with the system oil inlet end; first port of export of matched moulds reversal valve connects the entrance point of die cylinder by pipeline; the port of export of die cylinder connects first entrance point of differential brake reversal valve by pipeline; first port of export of differential brake reversal valve is by the plumbing connection system oil revolving end; second port of export of matched moulds reversal valve is connected by pipeline on the pipeline between first entrance point of the port of export of die cylinder and differential brake reversal valve; the 3rd port of export of matched moulds reversal valve connects second entrance point of differential brake reversal valve by pipeline; first entrance point that on the pipeline between second entrance point of the 3rd port of export of matched moulds reversal valve and differential brake reversal valve, is connected rapid oil return valve by pipeline; first port of export of rapid oil return valve connects the entrance point of quick oil return reversal valve by pipeline; the port of export of oil return reversal valve connects second entrance point of rapid oil return valve by pipeline fast; first entrance point that is connected pilot reversing valve on the pipeline between system's oil inlet end and matched moulds reversal valve first entrance point by pipeline; first port of export of pilot reversing valve is by second entrance point of pipeline connection matched moulds reversal valve, and second port of export of pilot reversing valve connects the triple feed inlet end of matched moulds reversal valve by pipeline.
Described differential brake reversal valve is a two-position four-way valve, and the oil return reversal valve is a hydraulic control one-way valve fast.
The utlity model has the folding mould time that to reduce injection machine and advantage such as enhance productivity.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure: it comprises the matched moulds reversal valve 1 that links to each other with the system oil inlet end; first port of export of matched moulds reversal valve 1 connects the entrance point of die cylinder 2 by pipeline; the port of export of die cylinder 2 connects first entrance point of differential brake reversal valve 3 by pipeline; first port of export of differential brake reversal valve 3 is by the plumbing connection system oil revolving end; second port of export of matched moulds reversal valve 1 is connected by pipeline on the pipeline between first entrance point of the port of export of die cylinder 2 and differential brake reversal valve 3; the 3rd port of export of matched moulds reversal valve 1 connects second entrance point of differential brake reversal valve 3 by pipeline; first entrance point that on the pipeline between second entrance point of the 3rd port of export of matched moulds reversal valve 1 and differential brake reversal valve 3, is connected rapid oil return valve 4 by pipeline; first port of export of rapid oil return valve 4 connects the entrance point of quick oil return reversal valve 5 by pipeline; the port of export of oil return reversal valve 5 connects second entrance point of rapid oil return valve 4 by pipeline fast; first entrance point that is connected pilot reversing valve 6 on the pipeline between system's oil inlet end and matched moulds reversal valve 1 first entrance point by pipeline; first port of export of pilot reversing valve 6 is by second entrance point of pipeline connection matched moulds reversal valve 1, and second port of export of pilot reversing valve 6 connects the triple feed inlet end of matched moulds reversal valve 1 by pipeline.
Described differential brake reversal valve 3 is a two-position four-way valve, and oil return reversal valve 5 is a hydraulic control one-way valve fast.
At a slow speed during matched moulds, 6 actions of folding mould pilot reversing valve, electromagnet D21 gets, the position work of a pilot valve left side, pilot pressure oil (dotted line among the figure) promotes main valve by position, a pilot valve left side, the position work of a folding mould main valve left side, system pressure oil arrives the Mode-locking oil cylinder rodless cavity through main valve, the rod chamber oil return is got back to fuel tank through main valve, rapid oil return valve, and part oil is through differential brake reversal valve 3 damping hole oil sump tanks, and oil return herein is by two valve oil sump tanks.
Fast during matched moulds, 6 actions of folding mould pilot reversing valve, electromagnet D21 gets, the position work of a pilot valve left side, pilot pressure oil promotes main valve by position, a pilot valve left side, the position work of a folding mould main valve left side, in folding mould valve events, oil return reversal valve 5, differential brake reversal valve 3 move simultaneously fast, and the chamber of die sinking at this moment hydraulic oil flows through differential brake reversal valve 3 through folding mould main valve and enters the matched moulds chamber, realizes differential quick matched moulds.This moment system pressure oil with the oil return of die sinking chamber all by folding mould main valve, the balance main valve is stressed, effectively reduces hydraulic fluid flow rate and pressure oscillation, feasible close fast more steady.
At a slow speed during die sinking, 6 actions of folding mould pilot reversing valve, electromagnet D20 gets, pilot valve right position work, pilot pressure oil promotes main valve by the right position of pilot valve, and the right position work of folding mould main valve is in folding mould valve events, oil return reversal valve 5 moves simultaneously fast, differential brake reversal valve 3 is failure to actuate, and the hydraulic oil in the matched moulds chamber only flows through from main valve at this moment, and passes through from the damping cavity of differential brake reversal valve 3, realize throttling action, thereby reduce piston rod speed.
Fast during die sinking, 6 actions of folding mould pilot reversing valve, electromagnet D20 gets, the right position work of matched moulds main valve, in folding mould valve events, differential brake reversal valve 3 moves simultaneously, oil return reversal valve 5 is failure to actuate fast, flow through in hydraulic oil one road main valve in the matched moulds chamber at this moment, another road is flow through from differential brake reversal valve 3, all flows back to fuel tank from rapid oil return valve 4 at last, when die sinking is quick, matched moulds chamber recirculating oil quantity is big, and is single bigger by pressure drop from folding mould valve, divides the two-way oil return, reduce pressure reduction, improve opening speed, can reduce folding mould main valve size again, save cost.
Claims (2)
1; a kind of injection machine folding mould hydraulic circuit system; it is characterized in that: it comprises the matched moulds reversal valve (1) that links to each other with the system oil inlet end; first port of export of matched moulds reversal valve (1) connects the entrance point of die cylinder (2) by pipeline; the port of export of die cylinder (2) connects first entrance point of differential brake reversal valve (3) by pipeline; first port of export of differential brake reversal valve (3) is by the plumbing connection system oil revolving end; second port of export of matched moulds reversal valve (1) is connected by pipeline on the pipeline between first entrance point of the port of export of die cylinder (2) and differential brake reversal valve (3); the 3rd port of export of matched moulds reversal valve (1) connects second entrance point of differential brake reversal valve (3) by pipeline; first entrance point that on the pipeline between second entrance point of the 3rd port of export of matched moulds reversal valve (1) and differential brake reversal valve (3), is connected rapid oil return valve (4) by pipeline; first port of export of rapid oil return valve (4) connects the entrance point of quick oil return reversal valve (5) by pipeline; the port of export of oil return reversal valve (5) connects second entrance point of rapid oil return valve (4) by pipeline fast; first entrance point that is connected pilot reversing valve (6) on the pipeline between system's oil inlet end and matched moulds reversal valve (1) first entrance point by pipeline; first port of export of pilot reversing valve (6) is by second entrance point of pipeline connection matched moulds reversal valve (1), and second port of export of pilot reversing valve (6) connects the triple feed inlet end of matched moulds reversal valve (1) by pipeline.
2, injection machine folding mould hydraulic circuit system as claimed in claim 1, it is characterized in that: described differential brake reversal valve (3) is a two-position four-way valve, oil return reversal valve (5) is a hydraulic control one-way valve fast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201862246U CN201275860Y (en) | 2008-10-15 | 2008-10-15 | Opening and closing die hydraulic circuit system of injection moulding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201862246U CN201275860Y (en) | 2008-10-15 | 2008-10-15 | Opening and closing die hydraulic circuit system of injection moulding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201275860Y true CN201275860Y (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201862246U Expired - Fee Related CN201275860Y (en) | 2008-10-15 | 2008-10-15 | Opening and closing die hydraulic circuit system of injection moulding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201275860Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909838A (en) * | 2012-10-24 | 2013-02-06 | 昌盛达机械(浙江)有限公司 | Double-cylinder differential fast-opening and fast-closing hydraulic system of direct-pressure injection molding machine |
| CN106738727A (en) * | 2016-11-24 | 2017-05-31 | 无锡海天机械有限公司 | A kind of injection machine folding moulding oil road |
| CN114834012A (en) * | 2022-05-07 | 2022-08-02 | 无锡海天机械有限公司 | Device and method for releasing pressure of screw of injection molding machine |
| CN114834012B (en) * | 2022-05-07 | 2024-04-26 | 无锡海天机械有限公司 | Screw pressure release device and method for injection molding machine |
-
2008
- 2008-10-15 CN CNU2008201862246U patent/CN201275860Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909838A (en) * | 2012-10-24 | 2013-02-06 | 昌盛达机械(浙江)有限公司 | Double-cylinder differential fast-opening and fast-closing hydraulic system of direct-pressure injection molding machine |
| CN102909838B (en) * | 2012-10-24 | 2015-09-23 | 昌盛达机械(浙江)有限公司 | The differential rapid mould opening-closing hydraulic system of direct press type injection moulding machine twin-tub |
| CN106738727A (en) * | 2016-11-24 | 2017-05-31 | 无锡海天机械有限公司 | A kind of injection machine folding moulding oil road |
| CN114834012A (en) * | 2022-05-07 | 2022-08-02 | 无锡海天机械有限公司 | Device and method for releasing pressure of screw of injection molding machine |
| CN114834012B (en) * | 2022-05-07 | 2024-04-26 | 无锡海天机械有限公司 | Screw pressure release device and method for injection molding machine |
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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: 20090722 Termination date: 20171015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |