CN202923012U - Rapid ejection structure of hydraulic cushion - Google Patents
Rapid ejection structure of hydraulic cushion Download PDFInfo
- Publication number
- CN202923012U CN202923012U CN 201220581230 CN201220581230U CN202923012U CN 202923012 U CN202923012 U CN 202923012U CN 201220581230 CN201220581230 CN 201220581230 CN 201220581230 U CN201220581230 U CN 201220581230U CN 202923012 U CN202923012 U CN 202923012U
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- piston cylinder
- feed flow
- branch road
- plunger cylinders
- Prior art date
- 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
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to a rapid ejection structure of a hydraulic cushion. The hydraulic cushion is driven by a hydraulic cylinder. The hydraulic cylinder comprises a piston cylinder plunger cylinders, wherein the plunger cylinders are arranged on the two sides of the piston cylinder. The rapid ejection structure has the innovative points that a rodless cavity fluid supply branch of the piston cylinder and a fluid supply branch of the plunger cylinders are merged into a main liquid supply oil line; a cartridge valve group for cutting off or conducting the branch is arranged on the fluid supply branch of the plunger cylinders; and liquid filling valve liquid supply branches are also arranged on the plunger cylinders. The rapid ejection structure of the hydraulic cushion has the advantages that a hydraulic station independently supplies liquid for the piston cylinder in a centralized manner when rising under no load, the other plunger cylinders are filled through liquid filling valves; and under the situation that the flow rate of supplied liquid is not changed, the ascending velocity of the hydraulic cushion is greatly increased, the ascending wait time is shortened, and the pressing efficiency is improved.
Description
Technical field
The utility model relates to a kind of hydraulic cushion of hydraulic press, particularly a kind of quick ejecting structure of hydraulic die cushion.
Background technology
The hydraulic die cushion of hydraulic press in the course of the work, the mode that adopts piston cylinder to combine with plunger case, hydraulic die cushion is in uphill process, Hydraulic Station is unified is plunger case and piston cylinder while fuel feeding, owing to for flow quantity, certain restriction being arranged in the unit interval, therefore the hydraulic die cushion rate of climb is slower, has extended the unloaded stand-by period, has reduced operating efficiency.Need to increase in addition oil pump if improve for flow quantity, increased manufacturing cost, and caused the waste of resource.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of quick ejecting structure of hydraulic die cushion, can be separately the piston cylinder central fluid supply when hydraulic die cushion rises, and reduces the stand-by period of rising.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of quick ejecting structure of hydraulic die cushion, comprise the piston cylinder and the plunger case that drive hydraulic die cushion, plunger case is arranged on the both sides of piston cylinder, its innovative point is: the rodless cavity feed flow branch road of described piston cylinder and the feed flow branch road of plunger case are incorporated total feed flow oil circuit into, and the inserted valve group of cut-out or this branch road of conducting is set on plunger case feed flow branch road; Prefill valve feed flow branch road also is set on plunger case.
Further, described inserted valve group is made of the pilot solenoid valve of inserted valve and control each hydraulic fluid port conducting of inserted valve and cut-out.
The utility model has the advantage of: when zero load was risen, Hydraulic Station was separately the piston cylinder central fluid supply, and remaining plunger case is by the prefill valve topping up, in the situation that for flow quantity inconvenience, increase substantially the rate of climb of hydraulic die cushion, reduce the stand-by period of rising, improve compacting efficient.
Description of drawings
Fig. 1 is the quick ejecting structure hydraulic schematic diagram of hydraulic die cushion in the utility model.
The specific embodiment
As shown in Figure 1, comprise hydraulic die cushion 8, piston cylinder 1, plunger case 2, piston rod rodless cavity feed flow branch road 3, plunger case feed flow branch road 4, total feed flow oil circuit 5, inserted valve group 6, prefill valve feed flow branch road 7.
Above-mentioned hydraulic die cushion 8 is driven by hydraulic jack, the plunger case 2 that it comprises piston cylinder 1 and is arranged on piston cylinder 1 both sides.
Piston cylinder rodless cavity feed flow branch road 3 and plunger case feed flow branch road 4 are incorporated total feed flow oil circuit 5 into, the inserted valve group 6 of cut-out or this branch road of conducting is set on plunger case feed flow branch road 4, and this inserted valve group is made of the pilot solenoid valve YA26 of inserted valve and control each hydraulic fluid port conducting of inserted valve and cut-out.
In addition, prefill valve feed flow branch road 7 also is set on plunger case 2.
Operation principle:
When hydraulic die cushion pushed up slowly, YA21,22,25,29 got electric, and hydraulic oil enters piston cylinder rodless cavity feed flow branch road 3 and plunger case feed flow branch road 4, hydraulic die cushion rising by total feed flow oil circuit 5 smoothly.
When hydraulic die cushion ejects fast, YA21,22,25,26,29 gets electric, hydraulic oil enters piston cylinder rodless cavity feed flow branch road 3 and plunger case feed flow branch road 4 by total feed flow oil circuit 5 smoothly, but because YA26 cuts off plunger case feed flow branch road 4, hydraulic oil all enters the rodless cavity of piston cylinder 1 by piston cylinder rodless cavity feed flow branch road 3,2 of plunger cases pass through prefill valve feed flow branch road 7 feed flows, make hydraulic die cushion 8 fast rise.
Claims (2)
1. the quick ejecting structure of a hydraulic die cushion, comprise the piston cylinder and the plunger case that drive hydraulic die cushion, plunger case is arranged on the both sides of piston cylinder, it is characterized in that: the rodless cavity feed flow branch road of described piston cylinder and the feed flow branch road of plunger case are incorporated total feed flow oil circuit into, and the inserted valve group of cut-out or this branch road of conducting is set on plunger case feed flow branch road; Prefill valve feed flow branch road also is set on plunger case.
2. the quick ejecting structure of hydraulic die cushion according to claim 1 is characterized in that: described inserted valve group is made of inserted valve and the pilot solenoid valve of controlling each hydraulic fluid port conducting of inserted valve and cut-out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220581230 CN202923012U (en) | 2012-11-07 | 2012-11-07 | Rapid ejection structure of hydraulic cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220581230 CN202923012U (en) | 2012-11-07 | 2012-11-07 | Rapid ejection structure of hydraulic cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202923012U true CN202923012U (en) | 2013-05-08 |
Family
ID=48213006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220581230 Expired - Lifetime CN202923012U (en) | 2012-11-07 | 2012-11-07 | Rapid ejection structure of hydraulic cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202923012U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941681A (en) * | 2012-11-07 | 2013-02-27 | 南通锻压设备股份有限公司 | Quick ejection structure for hydraulic cushion |
| CN105015020A (en) * | 2015-07-21 | 2015-11-04 | 天津市天锻压力机有限公司 | Closed-loop pressure regulation control system for four corners of hydraulic die cushions and pressure regulation control method |
| CN106391818A (en) * | 2016-09-19 | 2017-02-15 | 南通市腾达锻压机床厂 | Independent quick drive hydraulic system of hydraulic cushion of large-table-board hydraulic sheet metal drawing press |
-
2012
- 2012-11-07 CN CN 201220581230 patent/CN202923012U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941681A (en) * | 2012-11-07 | 2013-02-27 | 南通锻压设备股份有限公司 | Quick ejection structure for hydraulic cushion |
| CN105015020A (en) * | 2015-07-21 | 2015-11-04 | 天津市天锻压力机有限公司 | Closed-loop pressure regulation control system for four corners of hydraulic die cushions and pressure regulation control method |
| CN106391818A (en) * | 2016-09-19 | 2017-02-15 | 南通市腾达锻压机床厂 | Independent quick drive hydraulic system of hydraulic cushion of large-table-board hydraulic sheet metal drawing press |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203548373U (en) | Servo hydraulic system | |
| CN103883338B (en) | A kind of hydraulic support column self-boosting system containing hydraulic intensifier | |
| CN203769811U (en) | Self-help supercharging system with hydraulic supercharger and upright columns for hydraulic support | |
| CN103801751B (en) | Based on the fully-automatic plate shearing machine hydraulic system that PLC controls | |
| CN204099304U (en) | A kind of baby press hydraulic driving system | |
| CN103807239A (en) | Dual output shaft motor based shear plate synchronous control hydraulic system | |
| CN202923012U (en) | Rapid ejection structure of hydraulic cushion | |
| CN201372983Y (en) | Hydraulic control system of vulcanizing machine using sequential action | |
| CN104141650A (en) | Load sensitive forklift multi-way valve | |
| CN201776935U (en) | Hydraulic machine with two sets of hydraulic system structures | |
| CN102941681A (en) | Quick ejection structure for hydraulic cushion | |
| CN203384136U (en) | Speed exchange circuit with parallel speed control valves | |
| CN202116932U (en) | Hydraulic system of pulp package pressing machine | |
| CN203717500U (en) | Plate shearing synchronous hydraulic control system based on double-output-shaft motor | |
| CN203272294U (en) | Flexible adjustable machine tool circuit | |
| CN203174660U (en) | Load-sensitive control system of loading machine | |
| CN202767158U (en) | Hydraulic excavator flow out of valve regenerating device | |
| CN205329745U (en) | Two operation mode control systems of leveler | |
| CN203044619U (en) | Press machine hydraulic cushion driven by energy accumulators | |
| CN205151669U (en) | Energy -saving fork truck hydraulic system | |
| CN202883529U (en) | Energy-saving device of hydraulic piston pump of filter press | |
| CN202851525U (en) | Rapid hydro-cylinder hydraulic system | |
| CN204003676U (en) | Pressurized machine surges | |
| CN204003719U (en) | A kind of forklift multi-way valve of load-sensitive | |
| CN202344016U (en) | Hydraulic device for plate shearing machine with adjustable angle |
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: 20130508 |