CN105598334A - Hydraulic system for hydraulic machine for forging and pressing elastic materials - Google Patents
Hydraulic system for hydraulic machine for forging and pressing elastic materials Download PDFInfo
- Publication number
- CN105598334A CN105598334A CN201610090593.4A CN201610090593A CN105598334A CN 105598334 A CN105598334 A CN 105598334A CN 201610090593 A CN201610090593 A CN 201610090593A CN 105598334 A CN105598334 A CN 105598334A
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- valve
- hydraulic fluid
- fluid port
- master cylinder
- way electromagnetic
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/12—Drives for forging presses operated by hydraulic or liquid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/20—Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
Abstract
The invention relates to a hydraulic system for a hydraulic machine for forging and pressing elastic materials. The hydraulic system comprises an internal gear pump, a servo motor, a cartridge valve set and an executing mechanism, wherein the servo motor drives the internal gear pump to work through a transmission shaft; the cartridge valve set is located between a liquid outlet of the internal gear pump and an executing mechanism of the hydraulic machine; the pressure liquid flowing out from the liquid outlet of the internal gear pump passes through the cartridge valve set in a flowing manner and acts on the executing mechanism of the hydraulic machine under the control of the cartridge valve set. The invention also relates to the hydraulic machine comprising the hydraulic system.
Description
Technical field
The present invention relates to a kind of hydraulic press system, particularly a kind of hydraulic system of the hydraulic press for elastomeric material processing.
Background technology
The present invention uses on the hydraulic press of three beam four posts, for the processing of elastomeric material, general more single for processing the hydraulic system that the hydraulic press of elastomeric material uses, the processing method that when processing elastomeric material is substantially all, this hydraulic system is more optimized in control system, and a dynamic formula processing method and auto-manual system system of processing are combined, make the material of processing more convenient, the step of controlled working at any time, easily puts into and takes out simultaneously, has improved the speed of processing elastomeric material.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of hydraulic system that can be convenient to process elastomeric material.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A hydraulic system for elastomeric material forging and stamping, its innovative point is: comprise crescent gear pump, servomotor, executing agency and inserted valve valve group; Servomotor drives inside engaged gear pump work by power transmission shaft, and inserted valve valve group is between the leakage fluid dram of crescent gear pump and the executing agency of hydraulic press;
Described executing agency comprises master cylinder and taking blame for others, and master cylinder is connected in the oil circuit of inserted valve valve group with taking blame for others, and master cylinder comprises hydraulic fluid port A1, hydraulic fluid port B1, is connected with a prefill valve a on master cylinder, takes blame for others and comprises hydraulic fluid port A2, hydraulic fluid port B2;
Described inserted valve valve group comprises master cylinder oil circuit and the oil circuit of taking blame for others, closed three position four-way electromagnetic valve in the middle of master cylinder oil circuit comprises, overflow valve, prefill valve, two-position two-way solenoid valve, fuel tank and adjustable throttling, middle closed three position four-way electromagnetic valve comprises hydraulic fluid port a, hydraulic fluid port b, hydraulic fluid port c and hydraulic fluid port d, hydraulic fluid port c is connected with the oil-out of crescent gear pump, prefill valve c is in parallel with overflow valve c, this parallel connection oil circuit one end is connected on hydraulic fluid port a by oil pipe, the other end is connected to the A1 oil port of master cylinder, after the B1 hydraulic fluid port of master cylinder, be in series with a prefill valve b, the hydraulic fluid port b place of closed three position four-way electromagnetic valve in the middle of prefill valve b is associated in by oil pipe string, closed 3-position 4-way solenoid directional control valve and prefill valve c in centre, between the oil circuit of overflow valve c parallel connection, be parallel with an overflow valve d, between overflow valve d and prefill valve a, connect, overflow valve c, between prefill valve c oil circuit in parallel and master cylinder A1 hydraulic fluid port, be parallel with an oil circuit, its one end is connected on the hydraulic fluid port c of middle closed three position four-way electromagnetic valve, on oil circuit, be in series with successively prefill valve d and two-position four-way solenoid valve a, on oil pipe between master cylinder B1 hydraulic fluid port and prefill valve b, be connected with an oil circuit of being connected with two-position two-way solenoid valve by adjustable throttling,
Adding pressure type three position four-way electromagnetic valve in the middle of the described oil circuit of taking blame for others comprises, prefill valve e and two-position four-way solenoid valve b, middle adding pressure type three position four-way electromagnetic valve comprises hydraulic fluid port e, hydraulic fluid port f, hydraulic fluid port g and hydraulic fluid port h, the hydraulic fluid port g of middle adding pressure type three position four-way electromagnetic valve is connected with the hydraulic fluid port d of intermediate seal formula three position four-way electromagnetic valve, the hydraulic fluid port h of middle adding pressure type three position four-way electromagnetic valve is connected with crescent gear pump, the hydraulic fluid port e of middle adding pressure type three position four-way electromagnetic valve is connected with the B2 hydraulic fluid port of taking blame for others, the A2 hydraulic fluid port of taking blame for others is connected with a prefill valve e, prefill valve e is connected with the hydraulic fluid port f of middle adding pressure type three position four-way electromagnetic valve, on the oil circuit between the hydraulic fluid port e of middle adding pressure type three position four-way electromagnetic valve and the B2 hydraulic fluid port of taking blame for others, be parallel with an overflow valve b, between A2 hydraulic fluid port and prefill valve e, be parallel with an overflow valve a taking blame for others, between A2 hydraulic fluid port and prefill valve e, be also parallel with two-position four-way solenoid valve c taking blame for others, on this two-position four-way solenoid valve c, be in series with a non-adjustable restrictor, two-position four-way solenoid valve b is in parallel with an overflow valve e, this parallel connection oil circuit one end is connected in parallel between crescent gear pump and middle closed three position four-way electromagnetic valve hydraulic fluid port c.
Further, described Pressure gauge has 4, is connected in parallel on respectively the oil-out place of crescent gear pump, the B2 oil port of taking blame for others, the A2 oil port of taking blame for others, the B1 oil port of master cylinder;
Described pressure sensor has 2, is parallel to respectively the liquid outlet of crescent gear pump and the B1 oil port of master cylinder.
Further, described cooler is arranged on the side of crescent gear pump.
Further, on pressure adjustment relief valve a, be in series with a Long-distance Control overflow valve ejecting of taking blame for others.
The invention has the advantages that:
This hydraulic system, by the combination of crawl and semi-automatic processing mode, more convenient aspect processing elastomeric material, in hydraulic system, pressure release electromagnetic valve and pressure adjustment relief valve can regulate the pressure of taking blame for others with master cylinder at any time, and the pressure that the magnetic valve of system pressure can react by Pressure gauge at any time carrys out the security of the pressure increase system regulation of control system, inserted valve valve set system is well arranged, travelling mechanism is convenient, easy to operate, has improved production efficiency.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
The schematic diagram of Fig. 1 hydraulic system.
Fig. 2 is magnetic valve action schedule.
Shown in Fig. 1: 1, crescent gear pump; 2, servomotor; 3, inserted valve valve group; 4, Long-distance Control overflow valve; 5, prefill valve; 6, Pressure gauge; 7, pressure sensor; 8, cooler. 9, executing agency; 10 two-position four-way solenoid valves; 11, middle closed three position four-way electromagnetic valve; 12, two-position two-way solenoid valve; 13, overflow valve; 14, adjustable throttling; 15, middle adding pressure type three position four-way electromagnetic valve; 16, non-adjustable restrictor.
Detailed description of the invention
The following examples can make the present invention of professional and technical personnel's comprehend, but therefore do not limit the present invention among described scope of embodiments.
A kind of hydraulic press system of processing as shown in Figure 1 comprises:
A hydraulic system for elastomeric material forging and stamping, comprises crescent gear pump 1, servomotor 2, executing agency 9 and inserted valve valve group 3; Servomotor 2 drives crescent gear pump 1 to work by power transmission shaft, and inserted valve valve group 3 is between the leakage fluid dram of crescent gear pump 2 and the executing agency of hydraulic press.
Executing agency 9 comprises master cylinder 9a and the 9b that takes blame for others, and master cylinder 9a and the 9b that takes blame for others are connected in the oil circuit of inserted valve valve group 3, and master cylinder comprises hydraulic fluid port A1, hydraulic fluid port B1, is connected with a prefill valve 5a on master cylinder, takes blame for others and comprises hydraulic fluid port A2, hydraulic fluid port B2.
Inserted valve valve group 3 comprises master cylinder oil circuit and the oil circuit of taking blame for others, closed three position four-way electromagnetic valve 11 in the middle of master cylinder oil circuit comprises, overflow valve 13, prefill valve 5, two-position two-way solenoid valve 12, fuel tank and adjustable throttling 14, middle closed three position four-way electromagnetic valve 11 comprises hydraulic fluid port a, hydraulic fluid port b, hydraulic fluid port c and hydraulic fluid port d, hydraulic fluid port c is connected with the oil-out of crescent gear pump 1, prefill valve 5c is in parallel with overflow valve 13c, this parallel connection oil circuit one end is connected on hydraulic fluid port a by oil pipe, the other end is connected to the A1 oil port of master cylinder 9a, after the B1 hydraulic fluid port of master cylinder 9a, be in series with a prefill valve 5b, the hydraulic fluid port b place of closed three position four-way electromagnetic valve 11 in the middle of prefill valve 5b is associated in by oil pipe string, closed three position four-way electromagnetic valve 11 and prefill valve 5c in centre, between the oil circuit of overflow valve 13c parallel connection, be parallel with an overflow valve 13d, between overflow valve 13d and prefill valve a, connect, overflow valve 13c, between prefill valve 5c oil circuit in parallel and master cylinder A1 hydraulic fluid port, be parallel with an oil circuit, its one end is connected on the hydraulic fluid port c of middle closed three position four-way electromagnetic valve 11, on oil circuit, be in series with successively prefill valve 5d and two-position four-way solenoid valve 10a, on oil pipe between master cylinder B1 hydraulic fluid port and prefill valve 5b, be connected with an oil circuit of being connected with two-position two-way solenoid valve 12 by adjustable throttling 14,
Adding pressure type three position four-way electromagnetic valve 15 in the middle of the oil circuit of taking blame for others comprises, prefill valve 5e and two-position four-way solenoid valve 10b, middle adding pressure type three position four-way electromagnetic valve 15 comprises hydraulic fluid port e, hydraulic fluid port f, hydraulic fluid port g and hydraulic fluid port h, the hydraulic fluid port g of middle adding pressure type three position four-way electromagnetic valve 15 is connected with the hydraulic fluid port d of intermediate seal formula three position four-way electromagnetic valve 11, the hydraulic fluid port h of middle adding pressure type three position four-way electromagnetic valve 15 is connected with crescent gear pump 1, the hydraulic fluid port e of middle adding pressure type three position four-way electromagnetic valve 15 is connected with the B2 hydraulic fluid port of taking blame for others, the A2 hydraulic fluid port of 9b of taking blame for others is connected with a prefill valve 5e, prefill valve 5e is connected with the hydraulic fluid port f of middle adding pressure type three position four-way electromagnetic valve 15, on the oil circuit between the hydraulic fluid port e of middle adding pressure type three position four-way electromagnetic valve 15 and the B2 hydraulic fluid port of the 9b that takes blame for others, be parallel with an overflow valve 13b, between A2 hydraulic fluid port and prefill valve e, be parallel with an overflow valve 13a taking blame for others, between A2 hydraulic fluid port and prefill valve 5e, be also parallel with two-position four-way solenoid valve 10c taking blame for others, on this two-position four-way solenoid valve 10c, be in series with a non-adjustable restrictor 16, two-position four-way solenoid valve 10b is in parallel with an overflow valve 13e, this parallel connection oil circuit one end is connected in parallel between crescent gear pump 1 and middle closed three position four-way electromagnetic valve 11 hydraulic fluid port c.
Pressure gauge 6 has 4, is connected in parallel on respectively the oil-out place of crescent gear pump 1, the B2 oil port of the 9b that takes blame for others, the A2 oil port of the 9b that takes blame for others, the B1 oil port of master cylinder 9a.
Pressure sensor 7 has 2, is parallel to respectively the liquid outlet of crescent gear pump 1 and the B1 oil port of master cylinder 9a.
Cooler 8 is arranged on the side of crescent gear pump,, carry out cooling to the servo-drive system of hydraulic system.
Long-distance Control overflow valve 4, what be connected on the 9b that takes blame for others ejects pressure adjustment relief valve 13a above, and Long-distance Control overflow valve.
The operation principle of the hydraulic system of this elastomeric material forging and stamping is: hydraulic system is in the time of work, and the control of master cylinder oil circuit under master cylinder 9a fast, compacting, 3 actions of backhaul.
The ruuning situation of fast lower action master cylinder oil circuit is: after the effect of the crescent gear pump 1 that liquid drives at servomotor 2, be divided into two-way, the conveyance conduit of leading up to enters two-position four-way solenoid valve 10a, closed three position four-way electromagnetic valve 11 in the middle of another route hydraulic fluid port c enters, electromagnet YA1 opens electricly, liquid is flowed out by hydraulic fluid port b by middle closed three position four-way electromagnetic valve 11, hydraulic oil is by the prefill valve 5b after magnetic valve, finally enter in master cylinder 9a by B1 mouth, one road liquid backs down prefill valve 5d, electromagnet YA5 opens electricly, control opening of prefill valve 5d, liquid flows out from the outspoken speed of A1, by prefill valve 5d, enter fast fuel tank, electromagnet YA8 opens to obtain the pressure of electric control system, other electromagnet all must not close electric, realize the fast lower action of master cylinder 9a.
The ruuning situation of compacting action master cylinder oil circuit is: after the effect of the crescent gear pump 1 that liquid drives at servomotor 2, be divided into two-way, the conveyance conduit of leading up to enters two-position four-way solenoid valve 10a, closed three position four-way electromagnetic valve 11 in the middle of another route hydraulic fluid port c enters, electromagnet YA1 opens electricly, liquid is flowed out by hydraulic fluid port b by middle closed three position four-way electromagnetic valve 11, again by being connected to the prefill valve 5b after magnetic valve, finally entered in master cylinder 9a by B1 mouth, electromagnet YA5 must not close electric, prefill valve 5d does not open, make liquid can not pass through two-position four-way valve 10a, liquid is from A1 mouth flows out, by overflow valve 13c, flow out and directly enter fuel tank by hydraulic fluid port d through middle closed three position four-way electromagnetic valve 11 again, electromagnet YA8 opens to obtain the pressure of electric control system, other electromagnet all must not close electric, realize the compacting action of master cylinder 9a.
The ruuning situation of backhaul action master cylinder oil circuit is: after the effect of the crescent gear pump 1 that liquid drives at servomotor 2, closed three position four-way electromagnetic valve 11 in the middle of being entered by hydraulic fluid port c by conveyance conduit, electromagnet YA2 opens electricly, from centre, closed three position four-way electromagnetic valve hydraulic fluid port a outflow is divided into two-way to liquid, the prefill valve 5c of leading up to enters master cylinder 9a by A1 mouth, prefill valve 5a is backed down on another road, liquid in master cylinder 9a enters in fuel tank by prefill valve 5a, electromagnet YA8 opens to obtain the pressure of electric control system, other electromagnet all must not close electric, realize the backhaul action of master cylinder 9a.
Take blame for others oil circuit in the time of operation, and the oil circuit control of taking blame for others ejecting of the 9b that takes blame for others and is return 2 actions.
Ejecting the take blame for others ruuning situation of oil circuit of action is: after the effect of the crescent gear pump 1 that liquid drives at servomotor 2, adding pressure type three position four-way electromagnetic valve 15 in the middle of liquid is entered by hydraulic fluid port g, electromagnet YA3 opens electricly, liquid is flowed out by hydraulic fluid port hydraulic fluid port f by middle adding pressure type three position four-way electromagnetic valve 15, liquid flows through prefill valve 5e, finally enter and take blame for others in 9b by A2 mouth, liquid is flowed out by B2 mouth, converge with the liquid entering from hydraulic fluid port g through middle adding pressure type three position four-way electromagnetic valve 15 hydraulic fluid port e, flow out from hydraulic fluid port f circulation, electromagnet YA8 opens to obtain the pressure of electric control system, other electromagnet all must not close electric, the take blame for others action that ejects of 9b of realization.
Returning the take blame for others ruuning situation of oil circuit of action is: after the effect of the crescent gear pump 1 that liquid drives at servomotor 2, adding pressure type three position four-way electromagnetic valve 15 in the middle of liquid is entered by hydraulic fluid port g, electromagnet YA4 opens electricly, liquid is flowed out by middle adding pressure type three position four-way electromagnetic valve 15 hydraulic fluid port e, enter by B2 mouth the 9b that takes blame for others, liquid is flowed out by A2 mouth, what process was backed down rushes liquid valve 5e, the liquid entering by middle adding pressure type three position four-way electromagnetic valve 15 hydraulic fluid port f and hydraulic fluid port g converges, circulation is flowed out from hydraulic fluid port e, electromagnet YA8 opens to obtain the pressure of electric control system, other electromagnet all must not close electric, the take blame for others fallback action of 9b of realization.
Claims (4)
1. a hydraulic system for elastomeric material forging and stamping, is characterized in that: comprise crescent gear pump, servomotor, executing agency and inserted valve valve group; Servomotor drives inside engaged gear pump work by power transmission shaft, and inserted valve valve group is between the leakage fluid dram of crescent gear pump and the executing agency of hydraulic press;
Described executing agency comprises master cylinder and taking blame for others, and master cylinder is connected in the oil circuit of inserted valve valve group with taking blame for others, and master cylinder comprises hydraulic fluid port A1, hydraulic fluid port B1, is connected with a prefill valve a on master cylinder, takes blame for others and comprises hydraulic fluid port A2, hydraulic fluid port B2;
Described inserted valve valve group comprises master cylinder oil circuit and the oil circuit of taking blame for others, closed three position four-way electromagnetic valve in the middle of master cylinder oil circuit comprises, overflow valve, prefill valve, two-position two-way solenoid valve, fuel tank and adjustable throttling, middle closed three position four-way electromagnetic valve comprises hydraulic fluid port a, hydraulic fluid port b, hydraulic fluid port c and hydraulic fluid port d, hydraulic fluid port c is connected with the oil-out of crescent gear pump, prefill valve c is in parallel with overflow valve c, this parallel connection oil circuit one end is connected on hydraulic fluid port a by oil pipe, the other end is connected to the A1 oil port of master cylinder, after the B1 hydraulic fluid port of master cylinder, be in series with a prefill valve b, the hydraulic fluid port b place of closed three position four-way electromagnetic valve in the middle of prefill valve b is associated in by oil pipe string, closed three position four-way electromagnetic valve and prefill valve c in centre, between the oil circuit of overflow valve c parallel connection, be parallel with an overflow valve d, between overflow valve d and prefill valve a, connect, overflow valve c, between prefill valve c oil circuit in parallel and master cylinder A1 hydraulic fluid port, be parallel with an oil circuit, its one end is connected on the hydraulic fluid port c of middle closed three position four-way electromagnetic valve, on oil circuit, be in series with successively prefill valve d and two-position four-way solenoid valve a, on oil pipe between master cylinder B1 hydraulic fluid port and prefill valve b, be connected with an oil circuit of being connected with two-position two-way solenoid valve by adjustable throttling,
Adding pressure type three position four-way electromagnetic valve in the middle of the described oil circuit of taking blame for others comprises, prefill valve e and two-position four-way solenoid valve b, middle adding pressure type three position four-way electromagnetic valve comprises hydraulic fluid port e, hydraulic fluid port f, hydraulic fluid port g and hydraulic fluid port h, the hydraulic fluid port g of middle adding pressure type three position four-way electromagnetic valve is connected with the hydraulic fluid port d of intermediate seal formula three position four-way electromagnetic valve, the hydraulic fluid port h of middle adding pressure type three position four-way electromagnetic valve is connected with crescent gear pump, the hydraulic fluid port e of middle adding pressure type three position four-way electromagnetic valve is connected with the B2 hydraulic fluid port of taking blame for others, the A2 hydraulic fluid port of taking blame for others is connected with a prefill valve e, prefill valve e is connected with the hydraulic fluid port f of middle adding pressure type three position four-way electromagnetic valve, on the oil circuit between the hydraulic fluid port e of middle adding pressure type three position four-way electromagnetic valve and the B2 hydraulic fluid port of taking blame for others, be parallel with an overflow valve b, between A2 hydraulic fluid port and prefill valve e, be parallel with an overflow valve a taking blame for others, between A2 hydraulic fluid port and prefill valve e, be also parallel with two-position four-way solenoid valve c taking blame for others, on this two-position four-way solenoid valve c, be in series with a non-adjustable restrictor, two-position four-way solenoid valve b is in parallel with an overflow valve e, this parallel connection oil circuit one end is connected in parallel between crescent gear pump and middle closed three position four-way electromagnetic valve hydraulic fluid port c.
2. the hydraulic system of elastomeric material forging and stamping according to claim 1, is characterized in that:
Described Pressure gauge has 4, is connected in parallel on respectively the oil-out place of crescent gear pump, the B2 oil port of taking blame for others, the A2 oil port of taking blame for others, the B1 oil port of master cylinder, described pressure sensor has 2, is connected to the liquid outlet of crescent gear pump and the B1 oil port of master cylinder.
3. the hydraulic system of elastomeric material forging and stamping according to claim 1, is characterized in that:
Cooler is arranged on the side of crescent gear pump.
4. the hydraulic system of elastomeric material according to claim 1 forging and stamping, is characterized in that: on pressure adjustment relief valve a, be in series with a Long-distance Control overflow valve ejecting of taking blame for others.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090593.4A CN105598334B (en) | 2016-02-18 | 2016-02-18 | A kind of hydraulic system of elastomeric material forging and stamping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090593.4A CN105598334B (en) | 2016-02-18 | 2016-02-18 | A kind of hydraulic system of elastomeric material forging and stamping |
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| CN105598334A true CN105598334A (en) | 2016-05-25 |
| CN105598334B CN105598334B (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610090593.4A Expired - Fee Related CN105598334B (en) | 2016-02-18 | 2016-02-18 | A kind of hydraulic system of elastomeric material forging and stamping |
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| WO2017219337A1 (en) * | 2016-06-24 | 2017-12-28 | 邵正国 | Hydraulic system for hydraulic machine for forging and pressing elastic material |
| US11167465B2 (en) | 2017-09-26 | 2021-11-09 | Davis-Standard, Llc | Casting apparatus for manufacturing polymer film |
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| US11167465B2 (en) | 2017-09-26 | 2021-11-09 | Davis-Standard, Llc | Casting apparatus for manufacturing polymer film |
| US11173644B2 (en) | 2017-09-26 | 2021-11-16 | Davis-Standard, Llc | Casting apparatus for manufacturing polymer film |
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| Publication number | Publication date |
|---|---|
| CN105598334B (en) | 2017-12-01 |
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