CN104801760B - A kind of Full-numerical-control CNC curve profiling band sawing machines and its application method - Google Patents
A kind of Full-numerical-control CNC curve profiling band sawing machines and its application method Download PDFInfo
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Abstract
Servomechanism installation, Workpiece clamping is promoted to promote workpiece pneumatic clamping device, main transmission, support, CNC digital control systems, pneumatic system, driving pulley, driven pulley and bands for band before pneumatic means, saw the present invention relates to a kind of Full-numerical-control CNC curve profiling band sawing machines and its application method, including saw frame, device for tensioning saw blade, workpiece level；Support is arranged on the sidepiece of saw frame, CNC digital control systems control whole band sawing machine equipment, saw band guide device is additionally provided with saw frame, saw band guide device, which includes being oriented in saw band under servo rotary device and saw blade, is oriented to servo rotary device, servo rotary device is oriented in saw band to be located at close to driven pulley side, servo rotary device is oriented under saw blade can synchronously correspond to rotation bands for band positioned at guiding servo rotary device under servo rotary device and saw blade is oriented on driving pulley side, saw band.The present invention is capable of the sawing of curve or abnormity, and batch production, and the uniformity of workpiece accuracy is good, and production efficiency is high.
Description
Technical field
The invention belongs to band sawing machine equipment technical field, more particularly to a kind of Full-numerical-control CNC curves profiling band sawing machine
And its application method.
Background technology
With the raising of industrial expansion and living standards of the people, the progress of aesthetic standards, to various beautiful material requirements
It is increasing, such as because bullet train is considered during running at high speed, to reduce air to its resistance, whole car body
Be designed to streamlined, improve the speed of service, therefore the pantograph of bullet train, be exactly according to the profile of car body by multistage curve not
One camber line is smooth to be formed by connecting；The furniture of various curves in our daily lifes, Glass Craft, stone handicraft etc.,
It is also to be made up of curve, the presence of these curves brings aesthetic feeling to our life, has beautified our life.But these
The formation of curve, has plenty of the form by casting, is shaped to its blank, then is formed by other lathe finishing, exists
Blank allowance is big, and process is long, and a blank can only be processed into the defect of one, the pantograph of such as high ferro.Have plenty of
Formed by the cutting such as metal wire, boart boart line, although such a mode can solve the sawing of the thin workpiece in part, for
Large batch of process requirements, there is also its drawback.Metal wire, boart boart line are small due to diameter, insufficient strength, it is impossible to be adapted to
Strength High Efficient Sawing, while the sand grains of boart boart line produces for electroplating technology, easily comes off during sawing, uses the longevity
Life is short, and cost is high.It is inconsistent due to there is the characteristic of material for the camber line forming technique such as water knife, laser cutting, some workpiece
It can not process, though it can complete, but equipment investment and later stage use and maintenance are costly, and it is difficult for furniture, handicraft industry
To receive.But in recent years, the special-shaped sawing of various materials is more and more, it is necessary to which the Material Field of curve profiling or special-shaped sawing is related to
And to metal, furniture, handicraft, hardware, machinery, timber, graphite and carbon, plastics, resin, glass, carbon fibre, stone material, rubber,
Glass etc..Therefore how to develop a efficiently the band sawing machine of curve profiling or special-shaped sawing can meet the market demand and become special
Urgently.
The content of the invention
The technical problems to be solved by the invention be there is provided it is a kind of can sawing molding curve or abnormity Full-numerical-control
CNC curve profiling band sawing machines and its application method, because bands for band width can reach 19mm, thickness can reach
0.65mm, either its teeth portion sawtooth or diamond grit, it can bear strength and cut after being tensioned, coordinate bands for band
The servo curve interpolating motion of ± 90 ° of rotations, longitudinally, laterally workbench, you can complete the sawing of curve and special-shaped workpiece.
The present invention is achieved in that a kind of Full-numerical-control CNC curves profiling band sawing machine of offer, including saw frame, saw blade
Tensioning apparatus, workpiece level promote servomechanism installation, Workpiece clamping to promote workpiece pneumatic clamping device, main biography before pneumatic means, saw
Dynamic system, support, CNC digital control systems, pneumatic system, driving pulley, driven pulley and bands for band, driving pulley and driven
Belt wheel is arranged on saw frame, main transmission driving driving pulley rotation, driving pulley drive bands for band along driving pulley and
The cylindrical side revolution of driven pulley, bands for band tensioning degree is adjusted by the device for tensioning saw blade for being arranged on driven pulley side；Branch
Frame is arranged on the sidepiece of saw frame, and CNC digital control systems and pneumatic system control the normal operation of whole band sawing machine equipment,
Saw frame is additionally provided with saw band guide device, and saw band guide device, which includes being oriented in saw band under servo rotary device and saw blade, to be oriented to
Servo rotary device is oriented in servo rotary device, saw band and is oriented to servo rotary device positioned under driven pulley side, saw blade
Positioned at being oriented on driving pulley side, saw band under servo rotary device and saw blade, guiding servo rotary device can be certain
In the range of freely synchronous correspondence rotate bands for band.
Further, the structure that guiding servo rotary device under servo rotary device and saw blade is oriented in saw band is identical.
Further, servo rotary device is oriented in saw band includes servomotor, accurate planetary reducer, mounting seat, rotation
Rotating shaft, driven gear and driving gear, the accurate planetary reducer of servomotor driving, accurate planetary reducer pass through driving tooth
Wheel drive driven gear, driven gear drives rotary shaft in mounting seat by the angular turn specified, and bands for band passes through rotary shaft
Axle center, saw band guide pad and saw band pre- directing axle are provided with the rotary shaft, is led in advance by saw band guide pad and saw band
Rotated to axle driving bands for band by specified angle.
Further, servo rotary device is oriented in saw band also includes Level tune bottom plate and bearing, and mounting seat is set
On Level tune bottom plate, the left and right horizontal position of mounting seat can be adjusted on Level tune bottom plate, and Level tune bottom plate is set
Put on bearing, the anterior-posterior horizontal position of mounting seat can be adjusted on bearing, and bearing is arranged on saw frame.
Further, bands for band is arbitrarily freely rotated around its symmetrical centre in -90 ° to+90 ° of angular range.
Further, servo longitudinal mobile work platform, transverse shifting servomechanism installation, horizontal servo are provided with support to move
Dynamic workbench and servo longitudinal mobile device, servo longitudinal mobile device driving servo longitudinal mobile work platform are vertically moved,
The horizontal servo mobile work platform transverse shifting of transverse shifting servomechanism installation driving, transverse shifting servomechanism installation and horizontal servo are moved
Dynamic workbench is arranged in servo longitudinal mobile work platform, and workpiece level promotes servomechanism installation, Workpiece clamping to promote pneumatic means
And workpiece pneumatic clamping device is arranged in horizontal servo mobile work platform before saw.
Present invention additionally comprises the use that Cutting indexes are carried out using Full-numerical-control CNC curve profilings band sawing machine as the aforementioned
Method, comprises the following steps：
The first step, device power-up starts, and equipment is in original state；The CNC digital control systems of starting device and pneumatic system
System, the servo longitudinal mobile work platform of equipment, horizontal servo mobile work platform, workpiece level promote servomechanism installation to return to origin,
Workpiece clamping promotes workpiece pneumatic clamping device before pneumatic means, saw to unclamp；
Second step, feeding clamps workpiece；It is artificial to treat the work piece hoisting of sawing to horizontal servo mobile work platform, workpiece
Clamp and promote pneumatic means to clamp workpiece, start workpiece level and promote servomechanism installation to release workpiece to the starting point position for treating sawing
Put, workpiece pneumatic gripping means grips workpiece before saw；
3rd step, curve sawing --- longitudinal direction and horizontal servo moving interpolation；The CAD diagram paper for treating sawing workpieces is inputted
CNC digital control systems carry out program editing, start automatic sawing, cutting button, and main transmission operating is driven by device for tensioning saw blade
Bands for band runs at high speed, and then servo longitudinal mobile device, transverse shifting servomechanism installation are according to the journey of the CAD diagram paper editor of input
Sequence, moves, realizes the longitudinally, laterally servo moving interpolation of workpiece, form the sawing of curve simultaneously；
4th step, curve sawing --- bands for band is around its center rotation direction；Transported in the longitudinally, laterally servo interpolation of workpiece
During dynamic, bands for band is oriented under servo rotary device, saw blade in saw band and is oriented under the precision actuation of servo rotary device, encloses
Rotated around bands for band center, bands for band is tangential on sawing circular arc all the time, it is ensured that the smooth connection of sawing curve；
5th step, sawing completes discharging；After the completion of a workpiece sawing, servo longitudinal mobile work platform, horizontal servo
Mobile work platform returns to air clamper release workpiece, workpiece level before origin, saw and promotes servomechanism installation again to push away workpiece
Go out to the start position for treating sawing, the preceding workpiece pneumatic gripping means grips workpiece of saw, so circulation, until last part is processed
Finish.
Compared with prior art, Full-numerical-control CNC curve profiling band sawing machines of the invention and its application method, with such as
Lower feature：
1st, by way of the servo longitudinal movement and horizontal servo translational speed matching of monoblock workpiece are mobile, using CNC
Intelligent control program, using moving interpolation, realizes the technique using bands for band radian sawing, and batch production, workpiece accuracy
Uniformity is good, and production efficiency is high.
2nd, the guider rotated using servo-drive, allows bands for band to make around bands for band center in the range of ± 90 °
Precision rotation.By the control of CNC intelligent programs make bands for band all the time with sawing tangential, it is to avoid bands for band width is given
The interference that radian sawing is caused, smoothly realizes the automatic sawing, cutting of many specification radians, and radian connection is smooth, highly polished.
3rd, the CNC intelligent control programs for being exclusively used in band sawing machine curve sawing are developed, the connection with computer system is realized
Connect, by the input of CAD diagram paper, autopiler is done directly the sawing of workpiece radian, and can show its sawing rail
Mark, reduces the trouble of operator's Direct Programming, simplifies operating process, and accommodation expands.
Brief description of the drawings
Fig. 1 is the front view of a preferred embodiment of the present invention；
Fig. 2 is Fig. 1 left view；
Fig. 3 is the schematic diagram for being oriented to servo rotary device in Fig. 1 in saw band.
Embodiment
In order that technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Drawings and Examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Referring to shown in Fig. 1 and Fig. 2, the preferable implementation of Full-numerical-control CNC curves profiling band sawing machine of the present invention
Example, including saw frame 1, device for tensioning saw blade 2, workpiece level promote servomechanism installation 4, Workpiece clamping to promote work before pneumatic means 5, saw
Part air clamper 6, main transmission 7, support 9, CNC digital control systems 14, pneumatic system 15, driving pulley 16, driven belt
Wheel 17 and bands for band 18.Driving pulley 16 and driven pulley 17 are arranged on saw frame 1, the driving main belt of main transmission 7
Wheel 16 rotates, and driving pulley 16 drives cylindrical side revolution of the bands for band 18 along driving pulley 16 and driven pulley 17, band saw
The tensioning degree of bar 18 is adjusted by the device for tensioning saw blade 2 for being arranged on the side of driven pulley 17.Support 9 is arranged on the sidepiece of saw frame 1,
CNC digital control systems 14 and pneumatic system 15 control the normal operation of whole band sawing machine equipment.Saw is additionally provided with saw frame 1
Tape guide, saw band guide device can deflect the angle of bands for band 18 and be oriented to for it.Saw band guide device includes saw band
It is oriented under upper guiding servo rotary device 3 and saw blade in servo rotary device 8, saw band and is oriented to servo rotary device 3 and saw
The structure that servo rotary device 8 is oriented under bar is identical.
Servo rotary device 3 is oriented in saw band and is located at the guiding servo rotary device 8 under the side of driven pulley 17, saw blade
In close to the side of driving pulley 16.Be oriented in saw band be oriented to servo rotary device 8 under servo rotary device 3 and saw blade can be one
Determine freely synchronous correspondence in scope and rotate bands for band 18.
Include servomotor 31, accurate row referring to servo rotary device 3 is oriented to shown in Fig. 1 and Fig. 3, in saw band
Star reductor 32, mounting seat 33, rotary shaft 36, driven gear 39 and driving gear 310.Servomotor 31 drives accurate planet
Reductor 32, accurate planetary reducer 32 drives driven gear 39 by driving gear 310, and driven gear 39 drives rotary shaft 36
By the angular turn specified in mounting seat 33.The shaft core position of rotary shaft 36 is provided with through hole, bands for band 18 is logical through this
Hole（That is the shaft core position of rotary shaft 36）.
Saw band guide pad 37 and saw band pre- directing axle 38 are provided with rotary shaft 36, by saw band guide pad 37 and
Saw band pre- directing axle 38 drives bands for band 18 to be rotated by specified angle.Servo is oriented in the saw band at the two ends of bands for band 18
The synchronous correspondence of servo rotary device 8 is oriented under rotating device 3 and saw blade to rotate, and bands for band is freely rotatable within the specific limits
18 angle, to adapt to the cambered surface needs of part profile processing.Bands for band 18 surrounds angle of its symmetrical centre at -90 ° to+90 °
Degree scope is arbitrarily freely rotated.
To ensure that the pivot center and the rotation axis of rotary shaft 36 of bands for band 18 are coaxial, servo rotating dress is oriented in saw band
Putting 3 also includes Level tune bottom plate 34 and bearing 311.Mounting seat 33 is arranged on Level tune bottom plate 34, mounting seat 33
Left and right horizontal position can be adjusted on Level tune bottom plate 34.Level tune bottom plate 34 is arranged on bearing 311, mounting seat 33
Anterior-posterior horizontal position can be adjusted on bearing 311, bearing 311 is arranged on saw frame 1.
Please again referring concurrently to shown in Fig. 1 and Fig. 2, be provided with support 9 servo longitudinal mobile work platform 10, laterally move
Dynamic servomechanism installation 11, horizontal servo mobile work platform 12 and servo longitudinal mobile device 13.Servo longitudinal mobile device 13 is driven
Dynamic servo longitudinal mobile work platform 10 is vertically moved, and transverse shifting servomechanism installation 11 drives horizontal servo mobile work platform 12 laterally
It is mobile.Transverse shifting servomechanism installation 11 and horizontal servo mobile work platform 12 are arranged in servo longitudinal mobile work platform 10.
Workpiece level promotes servomechanism installation 4, Workpiece clamping to promote workpiece pneumatic clamping device 6 before pneumatic means 5 and saw to be arranged on horizontal stroke
To in servo mobile work platform 12, treat that the workpiece of sawing is placed in horizontal servo mobile work platform 12.CNC digital control systems 14 are controlled
Transverse shifting servomechanism installation 11 processed and servo longitudinal mobile device 13 so that horizontal servo mobile work platform 12 and longitudinal direction are watched
Transverse direction, servo longitudinal moving interpolation can be realized by taking mobile work platform 10.
Present invention additionally comprises the use that Cutting indexes are carried out using Full-numerical-control CNC curve profilings band sawing machine as the aforementioned
Method, comprises the following steps：
The first step, device power-up starts, and equipment is in original state；CNC digital control systems 14 of starting device and pneumatic
System 15, the servo longitudinal mobile work platform 10 of equipment, horizontal servo mobile work platform 12, workpiece level promote servomechanism installation 4
Return to origin（Initial point）, Workpiece clamping promotion pneumatic means 5, the preceding workpiece pneumatic clamping device 6 of saw unclamp；
Second step, feeding clamps workpiece；It is artificial to treat the work piece hoisting of sawing to horizontal servo mobile work platform 12, work
Part, which is clamped, promotes pneumatic means 5 to clamp workpiece, starts workpiece level and promotes servomechanism installation 4 to release workpiece to the starting point for treating sawing
Workpiece pneumatic clamping device 6 clamps workpiece before position, saw；
3rd step, curve sawing --- longitudinal direction and horizontal servo moving interpolation；The CAD diagram paper for treating sawing workpieces is inputted
CNC digital control systems 14 carry out program editing, start automatic sawing, cutting button, and main transmission 7 is operated, and passes through device for tensioning saw blade 2
Bands for band is driven to run at high speed, then servo longitudinal mobile device 13, transverse shifting servomechanism installation 11 are according to the CAD diagram paper of input
The program of editor, moves, realizes the longitudinally, laterally servo moving interpolation of workpiece simultaneously；
4th step, curve sawing --- bands for band is around its center rotation direction；Because bands for band possesses certain width, when
During crown sawing, back is caused to stop to material, and moving interpolation is impacted, therefore is inserted in the longitudinally, laterally servo of workpiece
Mend in motion process, bands for band must be oriented to the essence that servo rotary device 8 is oriented under servo rotary device 3, saw blade in saw band
Under close driving, rotated around bands for band center, bands for band is tangential on sawing circular arc all the time, it is ensured that sawing curve it is smooth
Connection；
5th step, sawing completes discharging；After the completion of a workpiece sawing, servo longitudinal mobile work platform 10, transverse direction are watched
Take mobile work platform 12 return to origin, saw before air clamper 5 unclamp workpiece, workpiece level promote servomechanism installation 4 again will
Workpiece is released to the start position for treating sawing, the preceding clamping of workpiece pneumatic clamping device 6 workpiece of saw, so circulation, until last
Part completion of processing.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (5)
1. a kind of Full-numerical-control CNC curves profiling band sawing machine, including saw frame（1）, device for tensioning saw blade（2）, workpiece level pushes away
Dynamic servomechanism installation（4）, Workpiece clamping promote pneumatic means（5）, workpiece pneumatic clamping device before saw（6）, main transmission（7）、
Support（9）, CNC digital control systems（14）, pneumatic system（15）, driving pulley（16）, driven pulley（17）And bands for band（18）,
The driving pulley（16）And driven pulley（17）It is arranged on saw frame（1）On, the main transmission（7）Drive driving pulley
（16）Rotation, the driving pulley（16）Drive bands for band（18）Along driving pulley（16）And driven pulley（17）Cylindrical side
Side is turned round, the bands for band（18）Tensioning degree is by being arranged on driven pulley（17）The device for tensioning saw blade of side（2）Regulation；It is described
Support（9）It is arranged on saw frame（1）Sidepiece, the CNC digital control systems（14）And pneumatic system（15）Control whole sawing band
The normal operation of sawing machine equipment, in the saw frame（1）It is additionally provided with saw band guide device, it is characterised in that the saw band is oriented to
Device includes being oriented to servo rotary device in saw band（3）And it is oriented to servo rotary device under saw blade（8）, it is oriented in the saw band
Servo rotary device（3）Positioned at close to driven pulley（17）Servo rotary device is oriented under side, the saw blade（8）Positioned at close to main
Movable belt pulley（16）Servo rotary device is oriented in side, the saw band（3）And it is oriented to servo rotary device under saw blade（8）Can be
Freely synchronous correspondence rotates bands for band in certain limit（18）；Servo rotary device is oriented in the saw band（3）And saw blade
The lower structure for being oriented to servo rotary device (8) is identical；Servo rotary device is oriented in the saw band（3）Including servomotor
（31）, accurate planetary reducer（32）, mounting seat（33）, rotary shaft（36）, driven gear（39）And driving gear（310）,
The servomotor（31）The accurate planetary reducer of driving（32）, the accurate planetary reducer（32）Pass through driving gear
（310）Drive driven gear（39）, the driven gear（39）Drive rotary shaft（36）In mounting seat（33）On by the angle specified
Degree is rotated, the bands for band（18）Through rotary shaft（36）Axle center, in the rotary shaft（36）On be provided with saw band guide pad
（37）And saw band pre- directing axle（38）, pass through the saw band guide pad（37）And saw band pre- directing axle（38）Drive bands for band
（18）Rotated by specified angle.
2. Full-numerical-control CNC curves profiling band sawing machine as claimed in claim 1, it is characterised in that be oriented in the saw band
Servo rotary device（3）Also include Level tune bottom plate（34）And bearing（311）, the mounting seat（33）It is arranged on level tune
Save bottom plate（34）On, the mounting seat（33）Left and right horizontal position can be in Level tune bottom plate（34）Upper adjustment, the water
Flat regulating base board（34）It is arranged on bearing（311）On, the mounting seat（33）Anterior-posterior horizontal position can be in bearing（311）On
Adjustment, the bearing（311）It is arranged on saw frame（1）On.
3. the Full-numerical-control CNC curve profiling band sawing machines as described in any one in claim 1 to 2, it is characterised in that institute
State bands for band（18）Angular range around its symmetrical centre at -90 ° to+90 ° is arbitrarily freely rotated.
4. the Full-numerical-control CNC curve profiling band sawing machines as described in any one in claim 1 to 2, it is characterised in that
The support（9）On be provided with servo longitudinal mobile work platform（10）, transverse shifting servomechanism installation（11）, horizontal servo movement work
Make platform（12）And servo longitudinal mobile device（13）, the servo longitudinal mobile device（13）Drive servo longitudinal mobile working
Platform（10）Vertically move, the transverse shifting servomechanism installation（11）The horizontal servo mobile work platform of driving（12）Transverse shifting, institute
State transverse shifting servomechanism installation（11）And horizontal servo mobile work platform（12）It is arranged on servo longitudinal mobile work platform（10）
On, the workpiece level promotes servomechanism installation（4）, Workpiece clamping promote pneumatic means（5）And workpiece pneumatic clamps dress before saw
Put（6）It is arranged on horizontal servo mobile work platform（12）On.
5. the application method of Full-numerical-control CNC curves profiling band sawing machine as claimed in claim 4, it is characterised in that including
Following steps：
The first step, device power-up starts, and equipment is in original state；The CNC digital control systems of starting device（14）And pneumatic system
System（15）, the servo longitudinal mobile work platform of equipment（10）, horizontal servo mobile work platform（12）, workpiece level promote servo dress
Put（4）Origin is returned to, Workpiece clamping promotes pneumatic means（5）, workpiece pneumatic clamping device before saw（6）Unclamp；
Second step, feeding clamps workpiece；It is artificial that the work piece hoisting of sawing will be treated to transverse direction servo mobile work platform（12）On, workpiece
Clamp and promote pneumatic means（5）Workpiece is clamped, starts workpiece level and promotes servomechanism installation（4）Workpiece is released to for treating sawing
Workpiece pneumatic clamping device before point position, saw（6）Clamp workpiece；
3rd step, curve sawing --- longitudinal direction and horizontal servo moving interpolation；The CAD diagram paper for treating sawing workpieces is inputted into CNC
Digital control system（14）Program editing is carried out, starts automatic sawing, cutting button, main transmission（7）Operating, passes through device for tensioning saw blade
（2）Bands for band is driven to run at high speed, then servo longitudinal mobile device（13）, transverse shifting servomechanism installation（11）According to input
The program of CAD diagram paper editor is moved simultaneously, realizes the longitudinally, laterally servo moving interpolation of workpiece；
4th step, curve sawing --- bands for band is around its center rotation direction；In the longitudinally, laterally servo moving interpolation mistake of workpiece
Cheng Zhong, bands for band（18）Servo rotary device is oriented in saw band（3）, be oriented to servo rotary device under saw blade（8）Accurate drive
Under dynamic, rotated around bands for band center, bands for band is tangential on sawing circular arc all the time, it is ensured that the smooth of sawing curve connects
Connect；
5th step, sawing completes discharging；After the completion of a workpiece sawing, servo longitudinal mobile work platform（10）, horizontal servo
Mobile work platform（12）Return to air clamper before origin, saw（5）Unclamp workpiece, workpiece level and promote servomechanism installation（4）Again
It is secondary to release workpiece to the start position for treating sawing, the preceding workpiece pneumatic clamping device of saw（6）Workpiece, so circulation are clamped, until
Last part completion of processing.
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| CN106863478A (en) * | 2017-03-09 | 2017-06-20 | 鄢有富 | A kind of 360 degree of special-shaped numerical control saws |
| CN110871465A (en) * | 2018-09-04 | 2020-03-10 | 三穗县创惠科技发展有限公司 | Money paper cutting and traveling mechanism |
| CN111136334B (en) * | 2019-12-23 | 2021-06-01 | 中国有色桂林矿产地质研究院有限公司 | Cutting method for hinge beam of forging cubic press |
| CN112828394A (en) * | 2021-02-01 | 2021-05-25 | 张嘉乐 | Vertical band sawing machine |
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| CN204565287U (en) * | 2015-04-27 | 2015-08-19 | 浙江晨龙锯床股份有限公司 | A kind of Full-numerical-control CNC curve profiling band sawing machine |
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Denomination of invention: A full CNC curve copying sawing belt saw and its application method Effective date of registration: 20210521 Granted publication date: 20170804 Pledgee: Zhejiang Jinyun Rural Commercial Bank Co.,Ltd. technology sub branch Pledgor: Zhejiang Chenlong Sawing Machine Co.,Ltd. Registration number: Y2021330000431 |
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Denomination of invention: A fully CNC CNC curve copying saw cutting band saw machine and its usage method Effective date of registration: 20231225 Granted publication date: 20170804 Pledgee: Lishui Jinyun Sub branch of Zhejiang Tailong Commercial Bank Co.,Ltd. Pledgor: Zhejiang Chenlong Sawing Machine Co.,Ltd. Registration number: Y2023980073133 |
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