CN105478639A - Thread roller and feeding control system thereof - Google Patents
Thread roller and feeding control system thereof Download PDFInfo
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- CN105478639A CN105478639A CN201410472768.9A CN201410472768A CN105478639A CN 105478639 A CN105478639 A CN 105478639A CN 201410472768 A CN201410472768 A CN 201410472768A CN 105478639 A CN105478639 A CN 105478639A
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Abstract
The invention discloses a thread roller and a feeding control system thereof. The thread roller comprises a feeding oil cylinder (4), a control box (7) used for driving oil feed and oil return of the feeding oil cylinder (4), a feeding oil pipe (6) and a withdrawing oil pipe (5). The feeding oil pipe (6) and the withdrawing oil pipe (5) are communicated with the feeding oil cylinder (4) and the control box (7). The thread roller further comprises a telescopic cylinder driving the control box (7) to supply oil to the feeding oil pipe (6) or the withdrawing oil pipe (5). A telescopic rod of the telescopic cylinder is connected with the control box (7). The thread roller also comprises a power supply device for supplying power to the telescopic cylinder.The feeding control system helps to effectively improve the problem that an electromagnet of the power control system may be heated and abraded.
Description
Technical field
The present invention relates to mechanical manufacturing field, particularly relate to a kind of feed control system of screw-rolling machine.In addition, the invention still further relates to a kind of screw-rolling machine comprising above-mentioned feed control system.
Background technology
Screw-rolling machine is a kind of Multifunctional cold extrusion molding lathe, under its roll extrusion power cold conditions, carry out the various shaping roll extrusion such as screw thread, profile of tooth, undergauge, tumbling to workpiece.Because this shaping is that plastic deformation produces, its intensity is better than the shaping of machining; And working (machining) efficiency is higher, be therefore used widely.
Please refer to Fig. 1, Fig. 1 is the operation principle schematic diagram of a kind of typical screw-rolling machine in prior art.
Screw-rolling machine comprises the identical rolling wheel of a pair parameter, is arranged on respectively on two main shafts of lathe 11, and can under the driving of transmission mechanism synchronous rotary in the same way.Wherein the first rolling wheel 12 is fixing, second rolling wheel 14 can carry out radial feed motion by hydraulic oil cylinder driving, and workpiece 13, with two centre bore location clampings, rotates two rolling wheels simultaneously and extrudes processed workpiece 13, make workpiece 13 outer round surface generation plastic deformation, form screw thread.
Workpiece 13 is in the process of extruding, and the second rolling wheel 14 does the feed motion of horizontal reciprocating under feed cylinder 15 drives.Electromagnet 19 assembly is adopted to control to control as the feeding power of oil cylinder in prior art, the power supply that electromagnet 19 connects directly accesses the power electric of 380V, electromagnet 19 connects operation panel 18, operation panel 18 by feeding oil pipe 16 with return oil pipe 17 and be communicated with feed cylinder 15, oil pipe is extruded by the switching electricity controlling electromagnet 19, control feed cylinder 15, and then control the feed motion of the second rolling wheel 14.
But the electromagnet assembly of existing equipment controls squeezing into oil hydraulic system, controlling in feeding component motion process, and every order of classes or grades at school electromagnet produces adhesive and unclamps action more than 2000 times, and action makes the iron core of electromagnet be easy to wearing and tearing frequently, causes loose contact; Also can produce impact shock during electromagnet action, bolt is easily loosened; Closed action makes electromagnet produce large calorimetric frequently, and heating is serious, causes and frequently burns out the faults such as coil, and impact is produced.
In sum, how effectively improving the problem such as heating and wearing and tearing of electromagnet in feeding power control system, is current those skilled in the art's urgent problem.
Summary of the invention
The object of this invention is to provide a kind of feed control system, effectively improve the problem such as heating and wearing and tearing of electromagnet in feeding power control system; Another object of the present invention is to provide a kind of screw-rolling machine comprising above-mentioned feed control system.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of feed control system, comprises feed cylinder, drives the operation panel of described feed cylinder oil-feed or oil return and be communicated with the feeding oil pipe of described feed cylinder and operation panel and return oil pipe, also comprise:
Drive described operation panel to described feeding oil pipe or the telescoping cylinder returning oil pipe fuel feeding, the expansion link of described telescoping cylinder is connected with described operation panel;
The power supply device of power is provided to described telescoping cylinder.
Preferably, described telescoping cylinder is cylinder, and described power supply device is Compressed Gas feedway.
Preferably, described cylinder comprises the cylinder body with the first blow vent and the second blow vent and the piston being positioned at described cylinder interior, and described first blow vent and the second blow vent lay respectively at the both sides of described piston.
Preferably, also comprise the air-operated solenoid valve with three blow vents, the steam line of described Compressed Gas feedway is communicated with a blow vent of described air-operated solenoid valve, and two other blow vent of described air-operated solenoid valve is communicated with the second blow vent with the first blow vent respectively by pipeline.
Preferably, the 24V transformer in the supply line being connected on described air-operated solenoid valve is also comprised.
Preferably, power on/off magnet valve in the supply line being connected on described air-operated solenoid valve is also comprised.
Preferably, also comprise controller, the signal output part of described controller and the signal input part of described power on/off magnet valve communicate to connect, and described controller can control the duty of described power on/off magnet valve.
Preferably, also comprise stroke touch switch, described stroke touch switch is touched rear described power on/off magnet valve and opens, described feeding oil pipe fuel feeding.
Preferably, the supply line of described feed cylinder is also serially connected with the time relay.
Feed control system provided by the invention, comprise feed cylinder, operation panel, feeding oil pipe, return oil pipe, telescoping cylinder and power supply device, wherein feed cylinder and operation panel by feeding oil pipe, return oil pipe and be connected, feeding oil pipe or return oil pipe fuel feeding or oil return, drive feed cylinder reciprocating with this, the expansion link of telescoping cylinder is connected with operation panel, telescoping cylinder drives operation panel to feed rail or return oil pipe fuel feeding, control feed cylinder advance or retreat, power supply device provides power to telescoping cylinder.
Feed control system provided by the present invention improves on the basis of existing technology, the electromagnet action of prior art is changed into telescoping cylinder and the power supply device action control power as reciprocal oil pressure feed system.After feed control system receives feeding instruction, power supply device provides power to telescoping cylinder, and telescoping cylinder just drives operation panel to feed rail fuel feeding, then feed cylinder does feed motion.After feed control system receives and returns instruction, power supply device also provides power to telescoping cylinder, and telescoping cylinder just drives operation panel to make to return oil pipe oil return, then feed cylinder does recoil movement.
Feed control system provided by the present invention, changes using the electromagnet action of prior art as telescoping cylinder and the power supply device action control power as reciprocal oil pressure feed system into.In this process, the mobile piston of telescoping cylinder is not easy to wear, and reaction speed is fast, be active in one's movements and uniform and stable, does not have impact shock, safe and reliable; Move back and forth quantity of heat production frequently less, can not produce serious fever phenomenon, service life is longer.
The present invention also provides a kind of screw-rolling machine, and comprise the first fixing rolling wheel, do the second rolling wheel of radial feed motion and drive the second rolling wheel to do the feed control system of feed motion, this feed control system is specially any one feed control system above-mentioned.Because above-mentioned feed control system has above-mentioned technique effect, the screw-rolling machine with this feed control system also should have corresponding technique effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the operation principle schematic diagram of a kind of typical feed control system in prior art;
The operation principle schematic diagram of the feed control system that Fig. 2 provides for detailed description of the invention a kind of in the present invention.
In accompanying drawing, mark is as follows:
11-lathe, 12-first rolling wheel, 13-workpiece, 14-second rolling wheel, 15-feed cylinder, 16-feeding oil pipe, 17-return oil pipe, 18-operation panel, 19-electromagnet;
1-lathe, 2-first rolling wheel, 3-second rolling wheel, 4-feed cylinder, 5-return oil pipe, 6-feeding oil pipe, 7-operation panel, 8-cylinder, 9-air-operated solenoid valve.
Detailed description of the invention
Core of the present invention is to provide a kind of feed control system, effectively improves the problem such as heating and wearing and tearing of electromagnet in feeding power control system; Another core of the present invention is to provide a kind of screw-rolling machine comprising above-mentioned feed control system.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 2, the operation principle schematic diagram of the feed control system that Fig. 2 provides for detailed description of the invention a kind of in the present invention.
In a kind of detailed description of the invention, the feed control system of lathe 1 provided by the present invention, feed cylinder 4 and operation panel 7 by feeding oil pipe 6, return oil pipe 5 and be connected, feeding oil pipe 6 or return oil pipe 5 fuel feeding or oil return, drive feed cylinder 4 reciprocating with this, the expansion link of telescoping cylinder is connected with operation panel 7, and telescoping cylinder drives operation panel 7 to feed rail 6 or return oil pipe 5 fuel feeding, control feed cylinder 4 advance or retreat, power supply device provides power source to telescoping cylinder.
Be understandable that, feed cylinder 4 can select hydraulic cylinder conventional on market, the cylinder barrel body of feed cylinder 4 is fixed in frame, piston rod is connected with the executive component on lathe 1, piston can complete linear reciprocating motion, then piston rod drives actuator movement, converts hydraulic energy to mechanical energy.The structure of feed cylinder 4 is simple, reliable operation, when realizing moving back and forth with it, can remove deceleration device from, and not have drive gap, stable movement.It should be noted that, the kind of hydraulic cylinder is a lot, according to the difference of concrete use occasion, purposes, can select type and the specification of feed cylinder 4 voluntarily, no matter use which kind of feed cylinder 4, as long as can meet the demands, all in protection scope of the present invention.
Feeding oil pipe 6 and return circulation hydraulic oil in oil pipe 5, has certain pressure, for the purpose of safety, select high voltage bearing oil pipe, such as selects the high-pressure oil pipe that is made up of steel wire winding casing play and inside and outside oil resistant, corrosion-resistant synthetic rubber.The present invention is to feeding oil pipe 6 and return the size of oil pipe 5, the thickness of pipe can not do further restriction, all in protection domain.
Drive feeding oil pipe 6 or return the operation panel 7 of oil pipe 5 fuel feeding or oil return, be actually valve common on market, the kind of valve is a lot, can be gas trap also can be liquid valve, it may be also the valve of other form, such as motor-driven valve, it can regulate flow, the pressure and flow direction etc. of fluid in pipeline.In the present invention, operation panel 7 one end is connected with telescoping cylinder, the other end by feeding oil pipe 6, return oil pipe 5 and be communicated with feed cylinder 4, utilize operation panel 7 to regulate feeding oil pipe 6 and return the flow of fluid in oil pipe 5, pressure and flow direction, translational speed and the direction of feed cylinder 4 can be controlled well, simple to operate, governing speed is fast, and accuracy is high.
Further, the telescoping cylinder that above-described embodiment provides can be cylinder 8, and cylinder 8 is Pneumatic Transmissions, the pressure energy of Compressed Gas is converted to the pneumatic apparatus of mechanical energy.Concrete, cylinder 8 comprises the cylinder body with the first blow vent and the second blow vent and the piston being positioned at cylinder interior, and the first blow vent and the second blow vent lay respectively at the both sides of piston.Concrete, first blow vent and the second blow vent are connected with two Compressed Gas pipelines respectively, first blow vent and the second blow vent are communicated with two chambers respectively, during poised state, piston remains static, and the pressure in two chambers is identical, and piston does not move, when the gas pressure passed into the Compressed Gas pipeline of side is large, piston moves to opposite side.Because cylinder 8 is also communicated with operation panel 7, then operation panel 7 is driven to feed rail 6 or return oil pipe 5 fuel feeding further.Piston rod is most important stressed part in cylinder 8, usually uses high-carbon steel, surface is through hard chrome plating process or use stainless steel, with anticorrosion, and improve wearability.Piston is the part that is stressed in cylinder 8, does linear reciprocating motion under the effect of the power source provided at power supply device.For preventing the two mutual gas blowbies in chamber about piston, being provided with piston packing, can also wear ring being provided with, the guidance quality of cylinder 8 can be improved, reduce the abrasion of piston packing, reducing friction resistance.It should be noted that, cylinder 8 has here been not limited to two blow vents, can also have one, three, even more.Telescoping cylinder is not limited to cylinder 8, can also be other telescoping cylinder, such as hydraulic cylinder, electric cylinder.
The power supply device provided in above-described embodiment is specifically as follows Compressed Gas feedway, and gas is here specifically as follows air, nitrogen etc., as long as can pressure differential be produced, drive telescoping cylinder piston movement all in protection scope of the present invention.Air is modal gas, originates wide, not contaminated air; And most of factory all possesses air compression station, namely compressed-air supply system, preferably, using the power source of air as driving telescoping cylinder.
In order to optimize technique scheme further, can increase magnetic valve between telescoping cylinder and Compressed Gas feedway, it is the automation foundation element with Electromagnetic Control fluid, belongs to actuator, is not limited to hydraulic pressure, pneumatic.For above-described embodiment, preferably select air-operated solenoid valve 9.Airtight chamber is had in magnetic valve, through hole is had at diverse location, each hole connects different oil pipes, concrete, air-operated solenoid valve 9 can have three blow vents, a blow vent of air-operated solenoid valve 9 is communicated with the steam line of Compressed Gas feedway, and two other blow vent of air-operated solenoid valve 9 is communicated with the second blow vent with the first blow vent of telescoping cylinder respectively by pipeline.Piston in the middle of chamber, two sides is two blocks of electromagnet, which side the magnet coil energising valve body in which face will attracted to, and opens or close different passages, the blow vent be namely communicated with the second blow vent with the first blow vent of telescoping cylinder by the movement of application valve body; And air admission hole, the blow vent be namely communicated with the steam line of Compressed Gas feedway is often opened, and gas will enter different pipelines, is then promoted the piston of cylinder 8 by the pressure of gas, piston drives piston rod again, and then drives feed cylinder 4 to move reciprocatingly.Current switching like this by controlling electromagnet just controls mechanical movement, adopts the connection line of solenoid control feed system simple, is connected very convenient with computer, be convenient to control, and the response time may be as little to several millisecond, reacts very sensitive.
On the basis of above-mentioned detailed description of the invention, air-operated solenoid valve 9 is connected with power supply, general commercial power is all the power voltage of 380V, the safe voltage value that it can bear far beyond human body, potential safety hazard is brought to the personal safety of device operator, therefore can in the supply line of air-operated solenoid valve 9 series transformer, 380V voltage transitions can be low-voltage by this transformer, such as change the alternating current of 24V into, certainly, can also be the voltage of other volt, certainly, within the scope of the safe voltage value that the magnitude of voltage of conversion preferably can bear at human body, the personal safety of operator is ensured with this.
In order to optimize technique scheme further, power on/off magnet valve that the supply line being also included in air-operated solenoid valve 9 connects, power on/off magnet valve can control startup or the closedown of air-operated solenoid valve 9.Power on/off magnet valve, during energising, valve is opened rapidly, and air-operated solenoid valve 9 starts; During power-off, valve is closed rapidly, and air-operated solenoid valve 9 is closed, and reaction is very rapid, very sensitive, safe and reliable.Power on/off magnet valve can be specifically guide electromagnetic valve, and the present invention does not do further restriction to this, as long as can meet the demands, all in protection scope of the present invention.
On the basis of above-mentioned detailed description of the invention, those skilled in the art according to the difference of concrete occasion, can carry out some changes to feed control system.Can also comprise controller in feed control system, the signal output part of controller and the signal input part of power on/off magnet valve communicate to connect, and controller can control the duty of power on/off magnet valve.After operator presses play button, the controller of electric control system sends feeding signal to power on/off magnet valve, power on/off magnet valve starts after receiving signal, control air-operated solenoid valve 9 to start, air-operated solenoid valve 9 controls the air inlet of compressed air total inlet pipe, controls gas and enters the side be connected with feeding oil pipe 6, the piston of cylinder 8 is shifted to feeding side and is moved, drive operation panel 7 action, feeding oil pipe 6 oil-feed, feed cylinder 4 starts to push ahead.When controller to power on/off magnet valve send return signal time, feed cylinder 4 is return.Detailed process and above-mentioned feeding process are roughly reverse, repeat no longer one by one here
On the basis of above-mentioned detailed description of the invention, can feed control system be made further improvements.Stroke touch switch can also be comprised in feed control system, stroke touch switch is actually the one of position or travel switch, utilize the collision of manufacturing machine moving component to make its contact action to realize to connect or disjunction control circuit, make that movable machinery stops automatically by certain position or stroke, counter motion, variable motion or back and forth movement etc. automatically.In the present invention, stroke touch switch can be connected on feeding oil pipe 6 current supply circuit, and stroke touch switch is touched rear power on/off magnet valve and opens, feeding oil pipe 6 fuel feeding; Stroke touch switch also can be connected on the current supply circuit of controller, and stroke touch switch is touched backward controller and sends feeding instruction, then opens power on/off magnet valve, feeding oil pipe 6 fuel feeding.
Feed control system provided by the present invention, in the immovable situation of other parts, the supply line of feed cylinder 4 can also be connected in series the time relay, and feed distance is controlled by the time relay.Timing is started after it receives enabling signal, when after the time timing zero that the time relay presets, namely timing terminates, the action that its working contact carries out out or closes, thus promotes follow-up circuit working, such as when the stroke touch switch of serial connection is that after timing terminates, stroke touch switch is touched, then by feedback signal, namely counteragent signal sends to air-operated solenoid valve 9, and control cylinder 8 is return, drive operation panel 7 action, feed cylinder 4 starts to return.After feed cylinder 4 gets back to initial position, manual operation or the action of automatic control electric magnet valve can also be set as.Manual operation for stopping action, can wait for next signal; The action of automatic control electric magnet valve for touching travel switch, can enter the cycle operation in next cycle.In general, the timing time of the time relay can according to the technological requirement sets itself of workpiece, and this time can regulate in the scope of design, thus convenient its timing time length of adjustment.The present invention can more than time relay, a feeding time relay that such as feeding current supply circuit is connected, setting feeding time; Return on current supply circuit connect one return the time relay, setting return the time.
Based on the feed control system provided in above-described embodiment, present invention also offers a kind of screw-rolling machine, this screw-rolling machine comprises the first fixing rolling wheel 2, does the second rolling wheel 3 of radial feed motion and drive the second rolling wheel 3 to do the feed control system of feed motion, and wherein feed control system is specially any one feed control system above-mentioned.The feed control system in above-described embodiment is have employed, so the beneficial effect of this screw-rolling machine please refer to above-described embodiment due to this screw-rolling machine.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a feed control system, comprise feed cylinder (4), drive the operation panel (7) of (4) oil-feed of described feed cylinder or oil return and be communicated with the feeding oil pipe (6) of described feed cylinder (4) and operation panel (7) and return oil pipe (5), it is characterized in that, also comprise:
Drive described operation panel (7) to described feeding oil pipe (6) or the telescoping cylinder returning oil pipe (5) fuel feeding, the expansion link of described telescoping cylinder is connected with described operation panel (7);
The power supply device of power is provided to described telescoping cylinder.
2. feed control system according to claim 1, is characterized in that, described telescoping cylinder is cylinder (8), and described power supply device is Compressed Gas feedway.
3. feed control system according to claim 2, it is characterized in that, described cylinder (8) comprises the cylinder body with the first blow vent and the second blow vent and the piston being positioned at described cylinder interior, and described first blow vent and the second blow vent lay respectively at the both sides of described piston.
4. feed control system according to claim 3, it is characterized in that, also comprise the air-operated solenoid valve (9) with three blow vents, the steam line of described Compressed Gas feedway is communicated with a blow vent of described air-operated solenoid valve (9), and two other blow vent of described air-operated solenoid valve (9) is communicated with the second blow vent with the first blow vent respectively by pipeline.
5. feed control system according to claim 4, is characterized in that, also comprises the 24V transformer in the supply line being connected on described air-operated solenoid valve (9).
6. feed control system according to claim 4, is characterized in that, also comprise be connected on described air-operated solenoid valve (9) supply line on power on/off magnet valve.
7. feed control system according to claim 6, it is characterized in that, also comprise controller, the signal output part of described controller and the signal input part of described power on/off magnet valve communicate to connect, and described controller can control the duty of described power on/off magnet valve.
8. feed control system according to claim 6, is characterized in that, also comprises stroke touch switch, and described stroke touch switch is touched rear described power on/off magnet valve and opens, described feeding oil pipe (6) fuel feeding.
9. the feed control system according to any one of claim 1 to 8, is characterized in that, the supply line of described feed cylinder (4) is also serially connected with the time relay.
10. a screw-rolling machine, it is characterized in that, comprise fixing the first rolling wheel (2), do second rolling wheel (3) of radial feed motion and drive described second rolling wheel (3) to do the feed control system of feed motion, described feed control system is specially the feed control system described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410472768.9A CN105478639A (en) | 2014-09-16 | 2014-09-16 | Thread roller and feeding control system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410472768.9A CN105478639A (en) | 2014-09-16 | 2014-09-16 | Thread roller and feeding control system thereof |
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| CN105478639A true CN105478639A (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410472768.9A Pending CN105478639A (en) | 2014-09-16 | 2014-09-16 | Thread roller and feeding control system thereof |
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| CN (1) | CN105478639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734651A (en) * | 2016-12-07 | 2017-05-31 | 贵州黎阳航空动力有限公司 | A kind of closing method of flow regulator bridge pipe |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0450294A1 (en) * | 1990-04-03 | 1991-10-09 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Screwdown device for adjusting of roll gas in rolling stands, in particular strip rolling stands |
| JPH0925903A (en) * | 1995-07-12 | 1997-01-28 | Daido Steel Co Ltd | Synchronous driving device |
| CN201267859Y (en) * | 2008-10-16 | 2009-07-08 | 济南汇和机电设备有限公司 | Squeezed riveting system |
| CN202291178U (en) * | 2011-11-02 | 2012-07-04 | 周宝杰 | Novel screw-rolling machine |
| CN102941683A (en) * | 2012-11-18 | 2013-02-27 | 苏州蓝王机床工具科技有限公司 | Large-sized hydraulic machine pressure relief system |
| CN103016458A (en) * | 2012-12-17 | 2013-04-03 | 徐州海伦农业科技有限公司 | Hydraulic control system of swinging driving cylinder |
| CN203109693U (en) * | 2013-01-22 | 2013-08-07 | 黄红良 | Control device of pneumatic cutting machine tool slide |
| CN103586995A (en) * | 2013-11-12 | 2014-02-19 | 乐山市新联机械制造有限责任公司 | Gas-liquid pressurization device for discharge door of internal mixer |
| CN203551399U (en) * | 2013-11-12 | 2014-04-16 | 中联重科股份有限公司 | Hydraulic pipe pressure testing system |
| CN204159803U (en) * | 2014-09-16 | 2015-02-18 | 青岛德盛机械制造有限公司 | Screw-rolling machine and feed control system thereof |
-
2014
- 2014-09-16 CN CN201410472768.9A patent/CN105478639A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0450294A1 (en) * | 1990-04-03 | 1991-10-09 | Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh | Screwdown device for adjusting of roll gas in rolling stands, in particular strip rolling stands |
| JPH0925903A (en) * | 1995-07-12 | 1997-01-28 | Daido Steel Co Ltd | Synchronous driving device |
| CN201267859Y (en) * | 2008-10-16 | 2009-07-08 | 济南汇和机电设备有限公司 | Squeezed riveting system |
| CN202291178U (en) * | 2011-11-02 | 2012-07-04 | 周宝杰 | Novel screw-rolling machine |
| CN102941683A (en) * | 2012-11-18 | 2013-02-27 | 苏州蓝王机床工具科技有限公司 | Large-sized hydraulic machine pressure relief system |
| CN103016458A (en) * | 2012-12-17 | 2013-04-03 | 徐州海伦农业科技有限公司 | Hydraulic control system of swinging driving cylinder |
| CN203109693U (en) * | 2013-01-22 | 2013-08-07 | 黄红良 | Control device of pneumatic cutting machine tool slide |
| CN103586995A (en) * | 2013-11-12 | 2014-02-19 | 乐山市新联机械制造有限责任公司 | Gas-liquid pressurization device for discharge door of internal mixer |
| CN203551399U (en) * | 2013-11-12 | 2014-04-16 | 中联重科股份有限公司 | Hydraulic pipe pressure testing system |
| CN204159803U (en) * | 2014-09-16 | 2015-02-18 | 青岛德盛机械制造有限公司 | Screw-rolling machine and feed control system thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734651A (en) * | 2016-12-07 | 2017-05-31 | 贵州黎阳航空动力有限公司 | A kind of closing method of flow regulator bridge pipe |
| CN106734651B (en) * | 2016-12-07 | 2019-05-14 | 贵州黎阳航空动力有限公司 | A kind of closing method of flow regulator bridge pipe |
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