CN106670574A - Period hydraulic control fast saw cutting device and control method thereof - Google Patents
Period hydraulic control fast saw cutting device and control method thereof Download PDFInfo
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- CN106670574A CN106670574A CN201611139655.2A CN201611139655A CN106670574A CN 106670574 A CN106670574 A CN 106670574A CN 201611139655 A CN201611139655 A CN 201611139655A CN 106670574 A CN106670574 A CN 106670574A
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- hydraulic
- hydraulic cylinder
- briquetting
- band
- saw
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D53/00—Machines or devices for sawing with strap saw-blades which are effectively endless in use, e.g. for contour cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
- B23D55/06—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of drives for strap saw blades; of wheel mountings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
A period hydraulic control fast saw cutting device comprises a sawing machine and a control system; a hydraulic device controlled by the control system is arranged in the sawing machine and comprises a servo motor, a master transmission wheel, a slave transmission wheel, a driving hydraulic cylinder, a three-way connector, a first hydraulic pipe, a second hydraulic pipe, a third hydraulic pipe, a first executing hydraulic cylinder, a second executing hydraulic cylinder, a first pressing block, a second pressing block, a first pressing block positioning pin shaft, a second pressing block positioning pin shaft and a band saw blade. The period hydraulic control fast saw cutting device is reasonable in structure and good in using effect, the running of equipment is more intelligent due to combination of a control device and a hydraulic device, and by changing the inherent cutting frequency in the saw cutting process, the optimal cutting frequency is achieved; and long-strip saw dust can be broken, the problems that in the saw cutting process, after the long-strip saw dust is coiled into a coil, a chip containing groove is filled with the long-strip saw dust, and consequently tooth pulling of the band saw blade is caused are eradicated, and therefore the saw cutting efficiency and the saw cutting precision are improved, high-precision fast saw cutting is achieved, and the period hydraulic control fast saw cutting device is worthy of popularization.
Description
Technical field
The present invention relates to band saw for metal bed technique, the especially a kind of quick saw cutting device of cycle hydraulic control and its control method.
Background technology
In common metal band sawing machine in the working angles of bands for band, affected by the intrinsic cutting frequency of cutting material,
The sawdust that can be produced in sawing process, these sawdust have length to have short, and sawdust can be in naturally after the cooling period web-like shape, and fill
Full chip pocket, particularly strip sawdust because with certain length, therefore and its be easily wound on bands for band, add in volume
The sawdust meeting of shape shape, strip sawdust causes bands for band to draw the problem of tooth full of chip pocket, prevents the normal lower saw of sawtooth, therefore
It is extremely difficult to quick sawing.
The content of the invention
The invention solves the problems that the shortcoming of above-mentioned prior art, there is provided a kind of rational in infrastructure, cycle hydraulic control easy to use is fast
Fast saw cutting device and its control method, it is to avoid the unconventional damage of sawtooth, improve the precision of cutting-rate and sawing, realize
The quick sawing of high accuracy, it is convenient and swift.
The present invention solves the technical scheme that its technical problem is adopted：The quick saw cutting device of this cycle hydraulic control, including sawing machine,
Control system, be provided with sawing machine by control system control hydraulic means, hydraulic means include servomotor, main driving wheel,
From drive, driving hydraulic cylinder, three way cock, the first hydraulic tube, the second hydraulic tube, the 3rd hydraulic tube, first perform hydraulic cylinder,
Second performs hydraulic cylinder, the first briquetting, the second briquetting, the first briquetting alignment pin, the second briquetting alignment pin, bands for band, its
Middle control system is used to control servomotor, and servomotor is used to drive main driving wheel, and from drive main driving wheel lower section is located at,
From the outer peripheral surface of drive and the outer peripheral surface of main driving wheel in being brought into close contact, driving hydraulic cylinder is located at from drive lower section,
The piston rod of driving hydraulic cylinder accompanies the rotation of drive and realizes moving up and down, and the compression chamber of driving hydraulic cylinder passes through the first liquid
Pressure pipe is connected with the input port of three way cock, and the delivery outlet of three way cock is by the second hydraulic tube, the 3rd hydraulic tube respectively with the
One performs hydraulic cylinder, the second compression chamber for performing hydraulic cylinder connects, and the first briquetting, the upper surface of the second briquetting are held respectively with first
Row hydraulic cylinder, the external part end face of the second execution hydraulic cylinder are brought into close contact, and the first briquetting, the lower surface of the second briquetting are sawed with band
The back of bar is brought into close contact, and on the first briquetting, the second briquetting bar hole is provided with, and is provided with bar hole and is pressed for reinforcing first
The briquetting alignment pin of block, the second briquetting.So, bands for band is realized being driven by hydraulic means, and this is more superior than machine driving, can
Stepless speed regulation is realized by valve or variable pump, variable displacement motor are interior on a large scale, speed adjustable range is up to 1：2000, and can fill in hydraulic pressure
Carry out speed governing during putting operation, transmitting movement uniform and stable, speed is more stable during load change, and hydraulic means by
Overload protection is easily achieved in overflow valve etc., while having self-lubricating function, therefore long service life, hydraulic drive is easily realized
Automatization, when being used in combination especially with hydraulic control and electrical equipment control, the automatic work that can be easily carried out complexity is followed
Ring, and remote control can be realized.Hydraulic means Jing realizes standardization, seriation, generalization, is easy to design, manufactures and popularization makes
With, and it is lightweight, compact conformation, inertia is little.
Further perfect, the piston rod of servomotor is placed at the eccentric position of main driving wheel.So, main driving wheel is inclined
The heart is arranged and causes hydraulic control unit to be capable of achieving to rise, decline two motion modes, simple and reasonable for structure, easy to use.
It is further perfect, main driving wheel and from drive be cam mechanism, inside groove is provided with from the positive and negative of drive,
A pair cylinders along the operation of inside groove inner circumferential facial contour are wherein installed on the piston rod of driving hydraulic cylinder.So, using cam machine
Structure is because that cam mechanism is capable of achieving high speed, improves the motion frequency of driving hydraulic cylinder, increases the flowing velocity of fluid flow,
So as to improve the motion frequency for performing hydraulic cylinder, the faster reciprocal motion of bands for band is realized, fast shut-off sawdust improves efficiency.
Being disposed to of inside groove and cylinder prevents the piston rod from drive and driving hydraulic cylinder from losing matching relationship, increases using steady
It is qualitative.
Further perfect, control system includes Leeb Hardness Tester, distance measuring sensor, pressure transducer, AC converter, light
Grid chi, data converter, proportional valve amplifier, host computer, slave computer, host computer enters row information and hands over by RS interfaces and slave computer
Mutually, slave computer includes connected MCU, CPLD, wherein MCU respectively with Leeb Hardness Tester, distance measuring sensor, pressure transducer, on
The touch LCD screen of position machine is connected, servomotor is connected, and CPLD is connected with data converter, proportional valve amplifier.So, control
System realizes that, to bands for band Based Intelligent Control, the touch LCD screen of host computer is used to set sawing machine operational factor using these hardware,
The operational factor such as width of the sawing workpieces about cross section is set, operation control command and operational factor is issued, host computer is simultaneously
It is responsible for the various information for showing, storage slave computer is uploaded, slave computer is used to receive the information such as order, the parameter of host computer transmission,
Control and the Sawing Process flow process of management sawing machine, upload real-time sawing duty parameter, and distance measuring sensor is realized to sawtooth and work
Part cross section carries out a distance test, formulates one and effectively refers to spacing, whether be tied with sawdust on bands for band for monitoring, from
And ensure normal process, very rationally.
It is further perfect, it is preset with various workpieces cross section type and ginseng on the host computer touch LCD screen of control system
Number, is selected and parameter setting according to the shape of cross section of sawing workpieces on touch LCD screen, or sets up self-defining work
Part cross section type and parameter；Sawing starts, and Leeb Hardness Tester is detected to the hardness of workpiece, and Leeb Hardness Tester is by test value
In being uploaded to MCU, MCU is detected according to the hardness for reading, and the metal material sawing speed recommended with reference to band sawing machine industry
Degree and feed scale and determine initial saw cutting speed, and using distance measuring sensor realize carrying out sawtooth and workpiece cross section one away from
From test, fixed one effectively refers to spacing, and control system drives servomotor to start, and servomotor drives main driving wheel to rotate,
Main driving wheel drives from drive and rotates, and when main driving wheel turns to maximum displacement position, will press down from drive, promotes
Liquid in driving hydraulic cylinder is separately flowed into by the first hydraulic tube, the second hydraulic tube, the 3rd hydraulic tube and three way cock
One performs in hydraulic cylinder, the second execution hydraulic cylinder, drives the first briquetting, the second briquetting to press down bands for band；Conversely, working as main biography
When wheel rotation is to least displacement position, will be from drive toward upper band, the first briquetting, the second briquetting are subject to bands for band pressing up
Power, promotes the first execution hydraulic cylinder, the second liquid performed in hydraulic cylinder to pass through the first hydraulic tube, the second hydraulic tube, the 3rd liquid
Pressure pipe and three way cock are back in driving hydraulic cylinder, and bands for band resets, and with progressively carrying out for sawing, is produced in sawing process
Raw sawdust is also more and more, and part strip sawdust is wound on bands for band, is resetted each time, and distance measuring sensor all can be to sawtooth
Do a range finding analysis with the spacing of workpiece cross section, and with effectively compared repeatedly with reference to spacing, and these are collected
Pitch information feed back to host computer, host computer accelerates the torque frequency of servomotor according to resulting information so that winding
Sawdust on bands for band can immediately be cut off during shallow contact is carried out with workpiece cross section, depart from bands for band, it is ensured that
The normal lower saw sawing of bands for band, while also protecting to sawtooth.So, control device is used to control making for hydraulic means
With hydraulic control unit realizes the control to bands for band, is realized the rising of bands for band, is declined two using the main driving wheel of eccentric setting
Motion mode, by the way that bands for band is constantly pushed and resetted in sawing process, so as to intrinsic in change sawing process
Cutting frequency, control system will then adjust cutting frequency becomes simple, quick, and reaches optimal cutting frequency, and in saw
During cutting, bands for band constantly push and the reciprocatory movement that resets in strip sawdust can be crushed, prevent in sawing
Bands for band is lifted into impact cutting-rate full of chip pocket after strip sawdust rolled in journey.
The invention has the advantages that：Present configuration is reasonable, using effect is good, using control device and hydraulic means
Combining makes the operation of equipment more intelligent, optimal so as to reach by the intrinsic cutting frequency in change sawing process
Cutting frequency, and can broken prevented will be with saw full of chip pocket after strip sawdust rolled in sawing process by strip sawdust
The problem that bar is lifted, so as to improve the precision of cutting-rate and sawing, realizes the quick sawing of high accuracy, is worthy to be popularized.
Description of the drawings
Fig. 1 is the floor map of hydrostatic assembly of the present invention；
Fig. 2 is the close-up schematic view of part A in Fig. 1 of the present invention；
Fig. 3 is the close-up schematic view of part B in Fig. 1 of the present invention；
Fig. 4 is the present invention from drive and the structural representation of driving hydraulic cylinder
Fig. 5 is the hardware block diagram of saw frame feed control system of the present invention；
Fig. 6 is the SAWING CONTROL flow chart of the present invention.
Description of reference numerals：Sawing machine 1, control system 2, hydraulic means 3, servomotor 4, main driving wheel 5, from drive 6,
Driving hydraulic cylinder 7, three way cock 8, the first hydraulic tube 9, the second hydraulic tube 10, the 3rd hydraulic tube 11, and first performs hydraulic cylinder 12,
Second execution hydraulic cylinder 13, the first briquetting 14, the second briquetting 15, bands for band 16, inside groove 17, cylinder 18, bar hole 19, briquetting is fixed
Position bearing pin 20, Leeb Hardness Tester 21, distance measuring sensor 22, pressure transducer 23, AC converter 24, grating scale 25, data turn
Parallel operation 26, proportional valve amplifier 27, host computer 28, slave computer 29, MCU29-1, CPLD29-2.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described：
Referring to the drawings 1-4：Control system 2 is used to control servomotor 4, and servomotor 4 is used to drive main driving wheel 5, from
Drive 6 is located at the lower section of main driving wheel 5, and the outer peripheral surface of outer peripheral surface and main driving wheel 5 from drive 6 is in be brought into close contact,
Driving hydraulic cylinder 7 is located at from the lower section of drive 6, and the piston rod of driving hydraulic cylinder 7 accompanies the rotation of drive 6 and realizes transporting up and down
Dynamic, the compression chamber of driving hydraulic cylinder 7 is connected by the first hydraulic tube 9 with the input port of three way cock 8, the output of three way cock 8
Mouth performs respectively the compression that hydraulic cylinder 12, second performs hydraulic cylinder 13 by the second hydraulic tube 10, the 3rd hydraulic tube 11 with first
Chamber connects, and the first briquetting 14, the upper surface of the second briquetting 15 perform hydraulic cylinder 12, second and perform hydraulic cylinder 13 with first respectively
External part end face is brought into close contact, and the back of the first briquetting 14, the lower surface of the second briquetting 15 and bands for band 18 is brought into close contact, and first
It is provided with briquetting 14, the second briquetting 15 in bar hole 19, bar hole 19 and is provided with for reinforcing the first briquetting 14, the second briquetting 15
Briquetting alignment pin 20；The piston rod of servomotor 4 is placed at the eccentric position of main driving wheel 5；Main driving wheel 5 and from transmission
Wheel 6 is cam mechanism, and inside groove 17 is provided with from the positive and negative of drive 6, is wherein provided with the piston rod of driving hydraulic cylinder 7
A pair cylinders 18 along the operation of the inner circumferential facial contour of inside groove 17.
Accompanying drawing 5：The hardware of control system 2 adopts upper and lower computer hierarchy, and both enter row information and hand over by RS232 interfaces
Mutually.Host computer 28 is the embedded system for configuring touch screen, and user sets sawing machine operational factor by host computer touch LCD screen,
The operational factor such as width of the sawing workpieces about cross section is set, operation control command and operational factor is issued；Host computer 28 is same
When be responsible for showing, store the various information of the upload of slave computer 29, such as current saw cutting speed, processing dimension, processing quantity etc..Under
The position controller of machine 29 receives the Sawing Process flow process of the information such as order, parameter that host computer 28 sends, control and management sawing machine, on
Pass real-time sawing duty parameter.
Accompanying drawing 6：In chronological sequence order, the control flow of control system 2 include following main functional modules：Initially
Change --- table 1 is downloaded, the cross section type and parameter of workpiece is input into, the relation table of bands for band position and the width of the workpiece is generated.Profit
Spacing is effectively referred to specifying one between distance measuring sensor 22 and workpiece cross section.Read the detected value of Leeb Hardness Tester 21, it is determined that
The saw cutting speed of bands for band 16.Driving hydraulic cylinder 7 starts.First execution hydraulic cylinder 12, second performs hydraulic cylinder 13 and starts.Band saw
The rapid decrease of bar 16, that is, cut work and enter pattern, and the saw cutting speed of bands for band 16 halves, carries out the opened loop control of low feed speed,
As bands for band 16 is gradually formed after cutting relation with workpiece, i.e. sawing work enters pattern, carries out permanent sawing force and becomes feed speed
Feedforward+feedback complex is controlled, and after the completion of sawing, proceeds to subsequent processing, and bands for band rapid increase resets, now distance measuring sensor reality
Now detect whether the spacing between bands for band 16 and workpiece cross section meets and effectively refer to spacing, if met, then bands for band
Next cutting order will be performed, if do not met, then bands for band 16 will perform the reciprocating motion for constantly pushing and resetting
Order, so as to those are wound on bands for band 16 strip sawdust cut-out, be allowed to separated so that sawtooth can expose
Outside.
Although the present invention is shown and described by reference to preferred embodiment, this professional ordinary skill
Personnel are it is to be appreciated that in the range of claims, can make the various change in form and details.
Claims (5)
1. the quick saw cutting device of a kind of cycle hydraulic control, including sawing machine (1), control system (2), is characterized in that：In the sawing machine (1)
The hydraulic means (3) controlled by control system (2) is provided with, the hydraulic means (3) is including servomotor (4), main driving wheel
(5), from drive (6), driving hydraulic cylinder (7), three way cock (8), the first hydraulic tube (9), the second hydraulic tube (10), the 3rd liquid
Pressure pipe (11), first perform hydraulic cylinder (12), the second execution hydraulic cylinder (13), the first briquetting (14), the second briquetting (15), band saw
Bar (16), wherein control system (2) for controlling servomotor (4), servomotor (4) for driving main driving wheel (5), from biography
Positioned at main driving wheel (5) lower section, the outer peripheral surface of outer peripheral surface and main driving wheel (5) from drive (6) is in tight to driving wheel (6)
Laminating, driving hydraulic cylinder (7) accompanies turning for drive (6) positioned at the piston rod from drive (6) lower section, driving hydraulic cylinder (7)
Move and realize moving up and down, the compression chamber of driving hydraulic cylinder (7) is by the first hydraulic tube (9) and the input port of three way cock (8)
Connection, the delivery outlet of three way cock (8) performs hydraulic cylinder with first respectively by the second hydraulic tube (10), the 3rd hydraulic tube (11)
(12), second the compression chamber connection of hydraulic cylinder (13), first briquetting (14), the upper surface difference of the second briquetting (15) are performed
It is brought into close contact with the external part end face of the first execution hydraulic cylinder (12), the second execution hydraulic cylinder (13), first briquetting (14),
The lower surface of the second briquetting (15) is brought into close contact with the back of bands for band (18), first briquetting (14), the second briquetting (15)
On be provided with bar hole (19), is provided with bar hole (19) for reinforcing the first briquetting (14), the briquetting of the second briquetting (15) is determined
Position bearing pin (20).
2. the quick saw cutting device of cycle hydraulic control according to claim 1, is characterized in that：The piston of the servomotor (4)
Bar is placed at the eccentric position of main driving wheel (5).
3. the quick saw cutting device of cycle hydraulic control according to claim 2, is characterized in that：The main driving wheel (5) and from biography
Driving wheel (6) is cam mechanism, and inside groove (17), the wherein piston of driving hydraulic cylinder (7) are provided with from the positive and negative of drive (6)
A pair cylinders (18) along the operation of inside groove (17) inner circumferential facial contour are installed on bar.
4. the quick saw cutting device of cycle hydraulic control according to claim 1, is characterized in that：The control system (2) is including inner
Family name's durometer (21), distance measuring sensor (22), pressure transducer (23), AC converter (24), grating scale (25), data conversion
Device (26), proportional valve amplifier (27), host computer (28), slave computer (29), host computer (23) is by RS232 interfaces and slave computer
() carries out information exchange, and the slave computer (29) includes connected MCU (29-1), CPLD (29-2), and wherein MCU (25) is respectively
It is connected, watches with the touch LCD screen of Leeb Hardness Tester (21), distance measuring sensor (22), pressure transducer (23), host computer (28)
Take motor (4) to be connected, CPLD (29-2) is connected with data converter (26), proportional valve amplifier (27).
5. a kind of usage right requires the hydraulic feed method of the quick sawing of cycle hydraulic control of 1 control system, it is characterized in that：It is described
Various workpieces cross section type and parameter are preset with host computer (28) the touch LCD screen of control system (2), according to sawing
The shape of cross section of workpiece is selected and parameter setting on touch LCD screen, or sets up self-defining workpiece cross section type
And parameter；Sawing starts, and Leeb Hardness Tester (21) is detected to the hardness of workpiece, and Leeb Hardness Tester (21) uploads test value
To in MCU (29-1), MCU (29-1) is detected according to the hardness for reading, and the metal material recommended with reference to band sawing machine industry
Material saw cutting speed and feeding scale determine initial saw cutting speed, and are realized using distance measuring sensor (22) transversal with workpiece to sawtooth
Face carries out a distance test, and fixed one effectively refers to spacing, and control system (2) drives servomotor (4) to start, servomotor
(4) main driving wheel (5) is driven to rotate, main driving wheel (5) drives from drive (6) and rotates, when main driving wheel (5) turns to maximum
During displaced position, will press down from drive (6), promote liquid in driving hydraulic cylinder (7) by the first hydraulic tube (9), the
Two hydraulic tubes (10), the 3rd hydraulic tube (11) and three way cock (8) separately flow into first and perform hydraulic cylinder (12), the second execution
In hydraulic cylinder (13), the first briquetting (14), the second briquetting (15) is driven to press down bands for band (16)；Conversely, working as main driving wheel
(5) when turning to least displacement position, will be from drive (6) toward upper band, the first briquetting (14), the second briquetting (15) are sawed by band
Bar (16) pressure up, promotes the first execution hydraulic cylinder (12), the second liquid performed in hydraulic cylinder (13) to pass through the first liquid
Pressure pipe (9), the second hydraulic tube (10), the 3rd hydraulic tube (11) and three way cock (8) are back in driving hydraulic cylinder (7), band saw
Bar (16) resets, and with progressively carrying out for sawing, produced sawdust is also more and more in sawing process, and part strip sawdust is twined
It is around on bands for band (16), resets each time, distance measuring sensor (22) all can does one to the spacing of sawtooth and workpiece cross section
Range finding analysis, and with effectively compared repeatedly with reference to spacing, and these pitch informations collected are fed back to into host computer
(28), host computer (28) accelerates the torque frequency of servomotor (4) according to resulting information so that be wound in bands for band (16)
On sawdust can immediately be cut off during shallow contact is carried out with workpiece cross section, depart from bands for band (16), it is ensured that band saw
The normal lower saw sawing of bar (16), while also protecting to sawtooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611139655.2A CN106670574B (en) | 2016-12-12 | 2016-12-12 | The hydraulic feed method of the quick saw cutting device of service life hydraulic control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611139655.2A CN106670574B (en) | 2016-12-12 | 2016-12-12 | The hydraulic feed method of the quick saw cutting device of service life hydraulic control |
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| Publication Number | Publication Date |
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| CN106670574A true CN106670574A (en) | 2017-05-17 |
| CN106670574B CN106670574B (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611139655.2A Active CN106670574B (en) | 2016-12-12 | 2016-12-12 | The hydraulic feed method of the quick saw cutting device of service life hydraulic control |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396551A (en) * | 2018-07-27 | 2019-03-01 | 浙江锯力煌锯床股份有限公司 | Pulse controlled sawing saw frame |
| CN112033772A (en) * | 2020-07-31 | 2020-12-04 | 武汉钢铁有限公司 | Rapid sample preparation method and application of impact sample |
| CN113885392A (en) * | 2021-10-18 | 2022-01-04 | 卡斯柯信号有限公司 | Fuse-free discrete output safety state escape protection system for safety output |
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| CN105818415A (en) * | 2016-03-28 | 2016-08-03 | 苏州亚思科精密数控有限公司 | Press machine capable of synchronously applying pressure in upward direction and downward direction |
| CN105818414A (en) * | 2016-03-28 | 2016-08-03 | 苏州亚思科精密数控有限公司 | Shaping press machine capable of synchronously applying pressure in two directions |
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| CN109396551A (en) * | 2018-07-27 | 2019-03-01 | 浙江锯力煌锯床股份有限公司 | Pulse controlled sawing saw frame |
| CN112033772A (en) * | 2020-07-31 | 2020-12-04 | 武汉钢铁有限公司 | Rapid sample preparation method and application of impact sample |
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| CN113885392B (en) * | 2021-10-18 | 2024-04-26 | 卡斯柯信号有限公司 | Fuse-free discrete output safety state escape protection system for safety output |
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Address after: No.1 Xingye Road, Huzhen Town, Jinyun County, Lishui City, Zhejiang Province Patentee after: Zhejiang saw Lihuang Industrial Technology Co.,Ltd. Address before: No.1 Xingye Road, Huzhen Town, Jinyun County, Lishui City, Zhejiang Province Patentee before: ZHEJIANG JULIHUANG SAWING MACHINE GROUP Co.,Ltd. |