CN1206056C - Hydraulic steel bar cutting machine - Google Patents
Hydraulic steel bar cutting machine Download PDFInfo
- Publication number
- CN1206056C CN1206056C CN 02157219 CN02157219A CN1206056C CN 1206056 C CN1206056 C CN 1206056C CN 02157219 CN02157219 CN 02157219 CN 02157219 A CN02157219 A CN 02157219A CN 1206056 C CN1206056 C CN 1206056C
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- travel switch
- piston rod
- electromagnet
- oil
- hydraulic cylinder
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Abstract
The present invention relates to a hydraulic steel bar cutter, which comprises a machine seat, a knife seat, a hydraulic cylinder with a piston rod, and a piston rod guide seat. A cutting-off blade is fixed on the piston rod, a sealing element is arranged between the piston rod and the hydraulic cylinder. The present invention also comprises an oil pump which is driven by a motor, and an output pipe of the oil pump is respectively connected with the front cavity and the back cavity of the hydraulic cylinder through an oil separator. An oil return pipe which returns the oil to an oil tank is also connected to the oil separator. An electromagnetic reversing valve for switching an oil circuit is arranged on the oil separator, and the electromagnetic reversing valve is provided with a first electromagnet which controls an oil transportation pipeline on the back cavity of the hydraulic cylinder, and a second electromagnet which controls an oil transportation pipeline on the front cavity of the hydraulic cylinder. Thus, a first travel switch and a second travel switch which limit the circulating motion range of the piston rod are provided, and a striking block which triggers the first travel switch and the second position switch is arranged on the piston rod. A cycle control mechanism is controlled by the first travel switch and the second travel switch which are electrically connected with the first electromagnet and the second electromagnet.
Description
(1) technical field
The present invention relates to a kind of Hydraulic Steel Bar Shear.
(2) background technology
Existing market is sold and the bar cropper of use has manually and motor-driven two kinds.Manually bar cropper generally is the shear reinforcement that is used for by lever force, and its inefficiency, labour intensity are big, and it is very difficult to shear bigger reinforcing bar.Motor-driven bar cropper generally is by motor, belt, gear and eccentric shaft gearing down cut reinforcing bar, and inconvenient operation, volume are greatly, carrying is inconvenient, noise is big, vibration force is strong, gear weares and teares easily, belt weares and teares easily etc.
(3) summary of the invention
The present invention will solve manual bar cropper inefficiency and motor-driven bar cropper volume is big, the shortcoming of inconvenient operation, and a kind of electric hydaulic bar cropper that can realize automatic and automanual loop control is provided.
Hydraulic Steel Bar Shear of the present invention comprises support, tool rest, has the hydraulic cylinder of piston rod, and piston rod guide, cutter blades are fixed on the piston rod, between described piston rod and the described hydraulic cylinder seal is arranged.
Comprise also that by electric motor driven oil pump the efferent duct of described oil pump is connected with back cavity with the ante-chamber of described hydraulic cylinder respectively by separator; Also be connected to the oil return pipe of oil return on the described separator to fuel tank;
The solenoid directional control valve that switches oil circuit is installed on the described separator, and described solenoid directional control valve has first electromagnet of control hydraulic cylinder back cavity pipeline road and second electromagnet of control hydraulic cylinder ante-chamber pipeline road;
Limit first travel switch and second travel switch of described piston rod shuttling movement scope, the collision block that can trigger first travel switch and second travel switch is housed on the described piston rod;
A circular control mechanism is electrically connected to form by described first travel switch and second travel switch and first electromagnet, second electromagnet.
Further, described circular control mechanism is controlled first relay electrical connection of described first electromagnet by the Chang Kaiyu of first travel switch, normally closed second relay with described second electromagnet of control of described first travel switch is electrically connected, often opening with described second relay of described second travel switch is electrically connected, and normally closed and described first relay of described second travel switch is electrically connected.
Further, the Chang Kaiyu of described first travel switch controls electrical connection place of first relay of described first electromagnet, and a change-over switch is installed.
The part that the piston rod front end matches with guide holder is square.
On the separator in-line overflow valve is housed.
Described support is equipped with wheel.
The utility model has the advantages that:
Hydraulic Elements are worked in oil, and noise is little, and cutting power is big, and are easy to operate, and it is little to wear and tear, and lubricates, and the life-span is long, and high efficiency can realize automatic and semi-automatic loop control, also has the characteristics of overload protection in addition.
(4) description of drawings
Fig. 1 is the utility model schematic diagram
Fig. 2 is the circuit diagram of the utility model circular control mechanism
Fig. 3 is a front view of the present utility model
Fig. 4 is a rearview of the present utility model
Fig. 5 is a vertical view of the present utility model
(5) specific embodiment
With reference to accompanying drawing:
Hydraulic Steel Bar Shear described in the utility model comprises support 17, tool rest 13, has the hydraulic cylinder 16 of piston, piston rod guide 15, and cutter blades 14 is fixed on the piston rod, between described piston rod 1 and the described hydraulic cylinder 16 seal 26 is arranged.
Also comprise the oil pump 6 that is driven by motor 21, the efferent duct of oil pump 6 is connected with back cavity 4 with the ante-chamber 3 of hydraulic cylinder respectively by separator 18; Also be connected to the oil return pipe 19 of oil return on the separator 18 to fuel tank;
The solenoid directional control valve 5 that switches oil circuit is installed on the separator 18, and described solenoid directional control valve 5 has first electromagnet 1DT of control hydraulic cylinder back cavity 4 pipeline roads and the second electromagnet 2DT of control hydraulic cylinder ante-chamber 3 pipeline roads;
Limit the first travel switch 1XK and the second travel switch 2XK of piston rod shuttling movement scope, the collision block 2 that can trigger the first travel switch 1XK and the second travel switch 2XK is housed on the piston rod 1;
A circular control mechanism is electrically connected to form by the first travel switch 1XK and the second travel switch 2XK and the first electromagnet 1DT, the second electromagnet 2DT.
Circular control mechanism is controlled the first relay 1KA electrical connection of the first electromagnet 1DT by the Chang Kaiyu of the first travel switch 1XK, the normally closed second relay 2KA with the control second electromagnet 2DT of the first travel switch 1XK is electrically connected, often opening with the second relay 2KA of the second travel switch 2XK is electrically connected, and the normally closed and first relay 1KA of the second travel switch 2XK is electrically connected.
The Chang Kaiyu of the first travel switch 1XK controls in the electrical connection of the first relay 1KA of the first electromagnet 1DT, and a change-over switch is installed.
The part that piston rod 1 front end matches with guide holder 15 is square
Motor 21 is vertical type motors, can improve the layout of complete machine.Oil pump 6 is a plunger-type fuel pump.Motor 21 is by flange 27, and connection mouth device 28 is connected with plunger-type fuel pump 6.Also be connected to filter 7 on the plunger-type fuel pump.Be equipped with a button centralized-control box 22 on the support 17, electric box 11 is satisfied with support 17 bottoms, and electric box 11 electric wires are moved button centralized-control box 22 to from electric pipe 10.Also be equipped with the convenient wheel 12 that moves on the support 17.Hydraulic cylinder also is equipped with buoy 29 and oil mass mark 32, and collision block 2 is contained on the control lever 24 that is fixed on piston rod 1, cooperates with energy and travel switch 1XK, 2XK.Travel switch also is equipped with adjusting device 25.Dustproof valve also is housed on the hydraulic cylinder.Separator is connected with oil inlet pipe 20, oil return pipe 19, back cavity petroleum pipeline 31, ante-chamber petroleum pipeline 30.
Described circular control mechanism circuit is as follows:
U, V, W, be respectively the inlet wire of 380V; 1FU, 2FU, 3FU are respectively fuse (fuse); FR is an electrothermal relay; KM is a contactor; M is a motor; SB1 is that motor stop button, SB2 are that motor start-up button, SB3 are for shearing stop button, SB4 for shearing start button; K is a change-over switch; 1KA, 2KA are respectively miniature relay; 1DT is that solenoid directional control valve first electromagnet, 2DT are solenoid directional control valve second electromagnet; HL is a power supply indicator, and 1XK is first travel switch, and 2XK is second travel switch.
The present invention has two kinds of cut-out modes: automatically with semi-automatic.
Its automatic cutting-off process is as follows: at first push electric motor starting button SB2 and make KM get electric and lock, motor M running; Make the KM outage by motor stop button SB1, motor M shuts down.Behind the motor start-up, hydraulic oil is back to hydraulic oil container through filter 7, plunger-type fuel pump 6 and solenoid directional control valve 5, and plunger-type fuel pump 6 is in idling lotus recurrent state.Want this moment to shear, change-over switch on the button centralized-control box, transfer to " automatically " gear A, pushing shearing button SB4 then must conduct 1KA and self-locking, solenoid directional control valve 1DT energising this moment, the pressure oil of plunger-type fuel pump 6 outputs enters hydraulic cylinder back cavity 4 through solenoid directional control valve 5, and piston rod is to moving ahead, realized shearing motion, the oil of hydraulic cylinder ante-chamber 3 is gone into fuel tank 85 times through solenoid directional control valve; When collision block 2 touches the second travel switch 2XK, produce two kinds of normally closed disconnections of effect: 2XK simultaneously, make the first electromagnet 1DT dead electricity of first travel switch 1KA outage back solenoid directional control valve; The normal switching of 2XK closed, the second electromagnet 2DT energising that makes 2KA get electric back solenoid directional control valve, at this moment solenoid directional control valve reversing oil circuit, pressure oil enters hydraulic cylinder ante-chamber 3 through reversal valve again, piston rod 1 is gone backward, has realized drawback movement, and the oil of back cavity returns into fuel tank 8 through solenoid directional control valve again; Make piston rod 1 make drawback movement; When collision block touched 1XK, the normally closed disconnection of 1XK made 2KA outage back 2DT dead electricity again; The normal switching of 1XK closed, and makes 1KA get electric and self-locking, makes the 1DT energising, and for example goes up said shuttling movement.Make 1KA or 2KA outage by shutdown switch SB3, just make 1DT or 2DT dead electricity, just stop motion immediately of piston rod.
When change-over switch during in the B position, be cut into semi-automatic state, operation principle and auto state are similar, different is: 1XK often begins to be in eventually off state, when making piston rod 1 make drawback movement, again when collision block 2 touches 1XK, the normally closed disconnection of 1XK, make 2KA outage back 2DT dead electricity, piston rod 1 stop motion immediately.If want to make 1KA to get electric and self-locking again, make the 1DT energising, that will make 1KA get electric and self-locking by shearing switch S B4 again, make the 1DT energising.So-called semi-automatic shearing that Here it is.
Claims (8)
1, a kind of Hydraulic Steel Bar Shear comprises support, tool rest, has the hydraulic cylinder of piston rod, and piston rod guide, cutter blades are fixed on the piston rod, between described piston rod and the described hydraulic cylinder seal are arranged, and it is characterized in that:
Comprise also that by electric motor driven oil pump the efferent duct of described oil pump is connected with back cavity with the ante-chamber of described hydraulic cylinder respectively by separator; Also be connected to the oil return pipe of oil return on the described separator to fuel tank;
The solenoid directional control valve that switches oil circuit is installed on the described separator, and described solenoid directional control valve has first electromagnet of control hydraulic cylinder back cavity pipeline road and second electromagnet of control hydraulic cylinder ante-chamber pipeline road;
Limit first travel switch and second travel switch of described piston rod shuttling movement scope, the collision block that can trigger first travel switch and second travel switch is housed on the described piston rod;
A circular control mechanism is electrically connected to form by described first travel switch and second travel switch and first electromagnet, second electromagnet.
2, Hydraulic Steel Bar Shear as claimed in claim 1, it is characterized in that: described circular control mechanism is controlled first relay electrical connection of described first electromagnet by the Chang Kaiyu of first travel switch, normally closed second relay with described second electromagnet of control of described first travel switch is electrically connected, often opening with described second relay of described second travel switch is electrically connected, and normally closed and described first relay of described second travel switch is electrically connected.
3, Hydraulic Steel Bar Shear as claimed in claim 2 is characterized in that: the Chang Kaiyu of described first travel switch controls electrical connection place of first relay of described first electromagnet, and a change-over switch is installed.
4, as the described Hydraulic Steel Bar Shear of one of claim 1-3, it is characterized in that: on the described separator in-line overflow valve is housed.
5, as the described Hydraulic Steel Bar Shear of one of claim 1-3, it is characterized in that: the part that described piston rod front end matches with guide holder is square.
6, as the described Hydraulic Steel Bar Shear of one of claim 1-3, it is characterized in that: described support is equipped with wheel.
7, as the described Hydraulic Steel Bar Shear of one of claim 1-3, it is characterized in that: described oil pump is a plunger-type fuel pump.
8, as the described Hydraulic Steel Bar Shear of one of claim 1-3, it is characterized in that: described motor is a vertical type motor, is connected with described oil pump by flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157219 CN1206056C (en) | 2002-12-20 | 2002-12-20 | Hydraulic steel bar cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02157219 CN1206056C (en) | 2002-12-20 | 2002-12-20 | Hydraulic steel bar cutting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1421289A CN1421289A (en) | 2003-06-04 |
| CN1206056C true CN1206056C (en) | 2005-06-15 |
Family
ID=4752887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02157219 Expired - Fee Related CN1206056C (en) | 2002-12-20 | 2002-12-20 | Hydraulic steel bar cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1206056C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140002B (en) * | 2007-09-18 | 2012-01-25 | 江苏牡丹离心机制造有限公司 | Compound oil cylinder |
| CN105798201A (en) * | 2016-02-02 | 2016-07-27 | 付江 | Horizontal hydraulic reinforcing steel cutter |
| CN105855989B (en) * | 2016-06-08 | 2018-07-10 | 东莞市蓝航五金科技有限公司 | A kind of vertical graduation device |
| CN105904281B (en) * | 2016-06-30 | 2018-09-14 | 东莞市雅群电子有限公司 | A kind of indexing positioning device |
| CN107084165B (en) * | 2017-04-28 | 2019-03-08 | 防城港市海河堤管理站 | Trigger mechanism and hydrologic monitoring device with the trigger mechanism |
| CN109514817A (en) * | 2018-11-16 | 2019-03-26 | 红河学院 | A kind of hydraulic automatic core-pulling mechanism |
| CN112338103A (en) * | 2020-11-05 | 2021-02-09 | 中国葛洲坝集团第二工程有限公司 | Hydraulic power-assisted mechanical reinforcing steel bar arc bending machine |
-
2002
- 2002-12-20 CN CN 02157219 patent/CN1206056C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1421289A (en) | 2003-06-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Saivs Machinery Co., Ltd. Assignor: Zhang Yongsheng Contract fulfillment period: 2008.7.26 to 2013.7.26 contract change Contract record no.: 2008330001110 Denomination of invention: Hydraulic steel bar cutting machine Granted publication date: 20050615 License type: Exclusive license Record date: 20081016 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.7.26 TO 2013.7.26; CHANGE OF CONTRACT Name of requester: NINGBO SAIWEISI MACHINE CO., LTD. Effective date: 20081016 |