CN203711690U - Knock-out hydraulic control system for punching machine - Google Patents
Knock-out hydraulic control system for punching machine Download PDFInfo
- Publication number
- CN203711690U CN203711690U CN201320894849.9U CN201320894849U CN203711690U CN 203711690 U CN203711690 U CN 203711690U CN 201320894849 U CN201320894849 U CN 201320894849U CN 203711690 U CN203711690 U CN 203711690U
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- CN
- China
- Prior art keywords
- oil
- dnockout
- valve
- control system
- punch press
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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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a knock-out hydraulic control system for a punching machine. The knock-out hydraulic control system comprises a knock-out connecting rod. One end of the knock-out connecting rod is installed on the punching machine through a rotating shaft. The other end of the knock-out connecting rod is connected with an oil cylinder. A left cavity with a piton rod in the oil cylinder is connected with a left-position oil port A of a four-way electromagnetic valve through an oil tube. A right cavity of the oil cylinder is connected with a right-position oil port B of the four-way electromagnetic valve through an oil tube. A left-position oil port P of the four-way electromagnetic valve is respectively connected with an energy accumulator, an air cooler and an oil port B of a three-way electromagnetic valve through oil tubes. An oil port T of the four-way electromagnetic valve is respectively connected with the energy accumulator, a pressure regulating valve and an oil port A of the three-way electromagnetic valve through oil tubes. A pressure regulating valve is connected between the right cavity of the oil cylinder and the four-way electromagnetic valve. The knock-out hydraulic control system is simple in arrangement, oil pressure can be regulated according to the actual production situation, the knock-out capacity can be changed at any time, and knock-out starting and stopping can be carried out according to the rotating angle of a crankshaft during running.
Description
Technical field
The utility model relates to the hydraulic drive field of punch press, particularly relates to a kind of dnockout hydraulic control system of punch press.
Background technology
Punch press is hole on machine-shaping workpiece or the important process equipment of groove, and workpiece by mould punching workpiece process, has the material being swept away and is embedded in diel on punch press, and the filling device of punch press is exactly to lay by being embedded in material in diel the device that comes.
Mostly existing knock-out mechanism is to adopt gear-driven mode, the dnockout power of this dnockout mode is constant, can not be along with actual conditions regulate, and can not in running, stop at any time, and easily there is stuck phenomenon when slide block arrives top dead-centre.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of dnockout hydraulic control system of punch press, system layout is simple, can regulate oil pressure according to the actual conditions of producing, and can change at any time dnockout ability, when operation, can carry out the beginning of dnockout and stop according to the rotational angle of bent axle.
The utility model solves the technical scheme that its technical problem adopts: the dnockout hydraulic control system that a kind of punch press is provided, comprise dnockout connecting rod, one end of this dnockout connecting rod is arranged on the sidewall of punch press by rotating shaft, its middle part is connected with the upper end of the knockout rod of vertical layout, the other end of described dnockout connecting rod is connected with the oil cylinder being vertically arranged on punch press sidewall, the left chamber that is furnished with piston rod in described oil cylinder is connected with the left position hydraulic fluid port A of four way solenoid valve by oil pipe, the right chamber of oil cylinder is connected with the right position hydraulic fluid port B of four way solenoid valve by oil pipe, the left position hydraulic fluid port P of described four way solenoid valve by oil pipe respectively with accumulator, the hydraulic fluid port B of air-cooler and three-way magnetic valve is connected, the hydraulic fluid port T of four way solenoid valve by oil pipe respectively with accumulator, the hydraulic fluid port A of pressure regulator valve and three-way magnetic valve is connected, the hydraulic fluid port P of this three-way magnetic valve communicates with fuel tank after pump group, between the right chamber of described oil cylinder and four way solenoid valve, be connected with pressure regulator valve, described air-cooler communicates with fuel tank by return filter.
On described accumulator and the oil pipe between pressure regulator valve, be connected with pressure switch, on the oil pipe between this pressure switch and accumulator, choke valve be installed.
On described pressure switch and the oil pipe between pressure regulator valve, Pressure gauge is installed, between the hydraulic fluid port A of this Pressure gauge and three-way magnetic valve, is furnished with check valve.
Described pump group communicates with fuel tank after oil absorption filter.
On described accumulator and the oil pipe between air-cooler, stop valve is installed.
In described fuel tank, being furnished with successively from the bottom to top low oil level detects with high oil level and detects.
The upper end of described fuel tank is provided with vent valve.
The rotational angle of described dnockout connecting rod is 4 ° to 10 °.
beneficial effect
The utility model relates to a kind of dnockout hydraulic control system of punch press, system layout is simple, adopt pressure regulator valve to regulate oil pressure according to the actual conditions of producing, accumulator can be used as auxiliary power source, to oil cylinder, continue energy supply, reduce the power of hydraulic pump, and can change at any time dnockout ability, when operation, can carry out the beginning of dnockout and stop according to the rotational angle of bent axle.
Accompanying drawing explanation
Fig. 1 is hydraulic system layout drawing described in the utility model;
Fig. 2 is the schematic diagram of dnockout structure described in the utility model.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment are only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
As shown in Figure 1-2, embodiment of the present utility model relates to a kind of dnockout hydraulic control system of punch press, comprise dnockout connecting rod 19, one end of this dnockout connecting rod 19 is arranged on the sidewall of punch press by rotating shaft 20, its middle part is connected with the upper end of the knockout rod 18 of vertical layout, the other end of described dnockout connecting rod 19 is connected with the oil cylinder 2 being vertically arranged on punch press sidewall, the left chamber that is furnished with piston rod in described oil cylinder 2 is connected with the left position hydraulic fluid port A of four way solenoid valve 3 by oil pipe, the right chamber of oil cylinder 2 is connected with the right position hydraulic fluid port B of four way solenoid valve 3 by oil pipe, the left position hydraulic fluid port P of described four way solenoid valve 3 by oil pipe respectively with accumulator 4, the hydraulic fluid port B of air-cooler 16 and three-way magnetic valve 10 is connected, the hydraulic fluid port T of four way solenoid valve 3 by oil pipe respectively with accumulator 4, the hydraulic fluid port A of pressure regulator valve 1 and three-way magnetic valve 10 is connected, the hydraulic fluid port P of this three-way magnetic valve 10 communicates with fuel tank 17 after pump group 11, between the right chamber of described oil cylinder 2 and four way solenoid valve 3, be connected with pressure regulator valve 1, described air-cooler 16 communicates with fuel tank 17 by return filter 13.
On described accumulator 4 and the oil pipe between pressure regulator valve 1, be connected with pressure switch 6, on the oil pipe between this pressure switch 6 and accumulator 4, choke valve 5 be installed.
On described pressure switch 6 and the oil pipe between pressure regulator valve 1, Pressure gauge 7 is installed, between this Pressure gauge 7 and the hydraulic fluid port A of three-way magnetic valve 10, is furnished with check valve 9.
Described pump group 11 communicates with fuel tank 17 after oil absorption filter 12.
On described accumulator 4 and the oil pipe between air-cooler 16, stop valve 8 is installed.
In described fuel tank 17, be furnished with successively from the bottom to top low oil level detect 14 and high oil level detect 21.
The upper end of described fuel tank 17 is provided with vent valve 15.
The rotational angle of described dnockout connecting rod 19 is 4 ° to 10 °.
During work, by driven by motor pump group 11, carry out continuous operation, when the bent axle rotation 0-90 of punch press spends, the slide block down of punch press, now oil cylinder is in bottom dead centre, now three-way magnetic valve 10 actions, make the hydraulic fluid port P of three-way magnetic valve 10 communicate with hydraulic fluid port A, and hydraulic oil is given accumulator 4 ftercompctions after check valve 9, pressure switch 6 and choke valve 5;
Now, the hydraulic fluid port P of four way solenoid valve 3 communicates with hydraulic fluid port A, and hydraulic oil is by the rear left chamber that enters into oil cylinder 2 of giving of four way solenoid valve 3, when the bent axle rotation 90-180 of punch press spends, the piston of oil cylinder 2 rises, and accumulator 4 continues to oil cylinder 2 voltage supply, and keeps certain pressure;
When the bent axle rotation 180-270 of punch press spends, oil cylinder 2 is failure to actuate, and pressure switch 6 and choke valve 5 are controlled hydraulic oil and again accumulator 4 carried out to ftercompction;
When the bent axle rotation 270-360 of punch press spends, four way solenoid valve 3 hydraulic fluid port P communicate with hydraulic fluid port B, and hydraulic oil enters into the right chamber of oil cylinder 2, and oil cylinder starts action, and oil hydraulic cylinder is moving doing downwards, and product is ejected.With this, complete a do action.
Pressure regulator valve 1 can be to regulating to the oil pressure enter accumulator 4 and to enter oil cylinder 2 right chambeies, and then regulate the ability of dnockout.
When three-way magnetic valve 10 is failure to actuate, hydraulic oil, from the hydraulic fluid port B pass-out of three-way magnetic valve 10, is back to fuel tank 17 after air-cooler 16 and return filter 13.
Stop valve 8 can guarantee that the hydraulic oil in accumulator 4 can not be back to fuel tank 17, makes accumulator 4 can continue energy supply.
Claims (8)
1. the dnockout hydraulic control system of a punch press, comprise dnockout connecting rod (19), one end of this dnockout connecting rod (19) is arranged on the sidewall of punch press by rotating shaft (20), its middle part is connected with the upper end of the knockout rod (18) of vertically arranging, it is characterized in that, the other end of described dnockout connecting rod (19) is connected with the oil cylinder (2) being vertically arranged on punch press sidewall, the left chamber that is furnished with piston rod in described oil cylinder (2) is connected with the left position hydraulic fluid port A of four way solenoid valve (3) by oil pipe, the right chamber of oil cylinder (2) is connected with the right position hydraulic fluid port B of four way solenoid valve (3) by oil pipe, the left position hydraulic fluid port P of described four way solenoid valve (3) by oil pipe respectively with accumulator (4), the hydraulic fluid port B of air-cooler (16) and three-way magnetic valve (10) is connected, the hydraulic fluid port T of four way solenoid valve (3) by oil pipe respectively with accumulator (4), the hydraulic fluid port A of pressure regulator valve (1) and three-way magnetic valve (10) is connected, the hydraulic fluid port P of this three-way magnetic valve (10) communicates with fuel tank (17) after pump group (11), between the right chamber of described oil cylinder (2) and four way solenoid valve (3), be connected with pressure regulator valve (1), described air-cooler (16) communicates with fuel tank (17) by return filter (13).
2. the dnockout hydraulic control system of a kind of punch press according to claim 1, it is characterized in that: on the oil pipe between described accumulator (4) and pressure regulator valve (1), be connected with pressure switch (6), on the oil pipe between this pressure switch (6) and accumulator (4), choke valve (5) be installed.
3. the dnockout hydraulic control system of a kind of punch press according to claim 2, it is characterized in that: on the oil pipe between described pressure switch (6) and pressure regulator valve (1), Pressure gauge (7) is installed, between this Pressure gauge (7) and the hydraulic fluid port A of three-way magnetic valve (10), is furnished with check valve (9).
4. the dnockout hydraulic control system of a kind of punch press according to claim 1, is characterized in that: described pump group (11) communicates with fuel tank (17) after oil absorption filter (12).
5. the dnockout hydraulic control system of a kind of punch press according to claim 1, is characterized in that: on the oil pipe between described accumulator (4) and air-cooler (16), stop valve (8) is installed.
6. according to the dnockout hydraulic control system of a kind of punch press described in claim 1 or 4, it is characterized in that: in described fuel tank (17), be furnished with successively from the bottom to top that low oil level detects (14) and high oil level detects (21).
7. according to the dnockout hydraulic control system of a kind of punch press described in claim 1 or 4, it is characterized in that: the upper end of described fuel tank (17) is provided with vent valve (15).
8. the dnockout hydraulic control system of a kind of punch press according to claim 1, is characterized in that: the rotational angle of described dnockout connecting rod (19) is 4 ° to 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320894849.9U CN203711690U (en) | 2013-12-31 | 2013-12-31 | Knock-out hydraulic control system for punching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320894849.9U CN203711690U (en) | 2013-12-31 | 2013-12-31 | Knock-out hydraulic control system for punching machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711690U true CN203711690U (en) | 2014-07-16 |
Family
ID=51150890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320894849.9U Withdrawn - After Issue CN203711690U (en) | 2013-12-31 | 2013-12-31 | Knock-out hydraulic control system for punching machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769497A (en) * | 2013-12-31 | 2014-05-07 | 宁波博信机械制造有限公司 | Material punching hydraulic control system of punch press |
-
2013
- 2013-12-31 CN CN201320894849.9U patent/CN203711690U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769497A (en) * | 2013-12-31 | 2014-05-07 | 宁波博信机械制造有限公司 | Material punching hydraulic control system of punch press |
| CN103769497B (en) * | 2013-12-31 | 2015-09-02 | 宁波博信机械制造有限公司 | A kind of dnockout hydraulic control system of punch press |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140716 Effective date of abandoning: 20150902 |
|
| RGAV | Abandon patent right to avoid regrant |