CN107956102A - A kind of fabric dividing device based on ultrasonic wave - Google Patents

A kind of fabric dividing device based on ultrasonic wave Download PDF

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Publication number
CN107956102A
CN107956102A CN201810009454.3A CN201810009454A CN107956102A CN 107956102 A CN107956102 A CN 107956102A CN 201810009454 A CN201810009454 A CN 201810009454A CN 107956102 A CN107956102 A CN 107956102A
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CN
China
Prior art keywords
ultrasonic
driving motor
dividing device
motor
cutting part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810009454.3A
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Chinese (zh)
Inventor
殷振
钱蜜
汪帮富
仝旭
黄钰文
荣佳诚
徐凯文
钱正龙
刘延铭
王忠超
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Suzhou University of Science and Technology
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Suzhou University of Science and Technology
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Filing date
Publication date
Application filed by Suzhou University of Science and Technology filed Critical Suzhou University of Science and Technology
Priority to CN201810009454.3A priority Critical patent/CN107956102A/en
Publication of CN107956102A publication Critical patent/CN107956102A/en
Pending legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06HMARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
    • D06H7/22Severing by heat or by chemical agents
    • D06H7/221Severing by heat or by chemical agents by heat
    • D06H7/223Severing by heat or by chemical agents by heat using ultrasonic vibration

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

The invention discloses a kind of fabric dividing device based on ultrasonic wave, including lathe part, ultrasonic cutting part, electrical control gear.Lathe part includes base, and screw, column, pair of nut, shaft coupling, drives motor, vertical micro-adjusting mechanism, supporting rack, lengthwise movement platform, transverse movement platform, fixed frame;Ultrasonic cutting part includes upper end driving motor, outer sleeve, connecting shaft cylinder, spring, lower end driving motor, motor flange disk, inner sleeve, bearing, ultrasonic transducer, ring flange, ultrasonic transformer, ultrasonic clipping tool head, supersonic generator;The present invention provides a kind of Scissoring device of brand new, using the instrument of additional ultrasonic to cloth march line clipping, cuts neatly, precision is high, has very high market application foreground.

Description

A kind of fabric dividing device based on ultrasonic wave
Technical field
The present invention relates to the field that cloth cuts machinery, a kind of fabric dividing device based on ultrasonic wave is specifically.
Background technology
Present people's fabric dividing uses conventional methods mostly, is manually cut with scissors, and the efficiency so cut is very low, Duplication of labour workload is very big, and manually cuts and inevitably the error cut occur and burr occur in cutting, causes cloth Waste;For these for solving the problems, such as to presently, there are, the problem of present invention is cut for cloth, devises this patent, and the present invention carries For a kind of brand-new fabric dividing device, the cutting of additional ultrasonic free-cutting is combined with numerically-controlled machine tool, can be quick, effectively will Cloth determines desired shape.
The content of the invention
The purpose of the present invention is for above-mentioned deficiency of the prior art, there is provided effect is preferably a kind of based on ultrasonic wave Fabric dividing device.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of fabric dividing device based on ultrasonic wave, it is characterised in that including lathe part, ultrasonic cutting part, electrical control dress Put;
Lathe part includes:Base, screw, column, pair of nut, shaft coupling, drives motor, vertical micro-adjusting mechanism, supporting rack, is indulged To motion platform, transverse movement platform, fixed frame;Column is installed on base by screw, and driving motor is installed by screw Above column, driving motor is connected by shaft coupling with leading screw, and pair of nut is connected by bolt and vertical micro-adjusting mechanism, silk Thick stick and pair of nut are linked together by threaded engagement, and supporting rack is arranged on vertical micro-adjusting mechanism;Lengthwise movement platform passes through Bolt-connection is arranged on base, and transverse movement platform, which is connected by bolts, to be arranged on lengthwise movement platform, and fixed frame passes through Bolt-connection is arranged on transverse movement platform;
Ultrasonic cutting part is arranged on the downside of the supporting rack of lathe part, and ultrasonic cutting part includes:Upper end drives motor, overcoat Cylinder, connecting shaft cylinder, spring, lower end driving motor, motor flange disk, inner sleeve, bearing, ultrasonic transducer, ring flange, luffing Bar, ultrasonic clipping tool head, supersonic generator;Upper end driving motor is arranged at supporting rack upper end;Connecting shaft cylinder is arranged at overcoat The upper end of cylinder;Spring is arranged in connecting shaft cylinder;Lower end driving motor is arranged at the side of outer sleeve end face;Motor flange disk is set In the outer ring of lower end driving motor;The outer ring both sides of inner sleeve are each provided with a bearing, outer ring and the outer sleeve inner ring of bearing Coordinate;The inner ring of bearing coordinates with inner sleeve outer ring;Ultrasonic transducer is arranged at the inside of inner sleeve;Ultrasonic transducer bag Include:Back shroud, piezoelectric ceramic piece, electrode slice, front shroud, connects bolt;Piezoelectric ceramic piece is arranged at the rear end of front shroud;Electrode Piece is arranged between piezoelectric ceramic piece;Back shroud is arranged at piezoelectric ceramic piece rear end;Back shroud, piezoelectric ceramic piece, electrode slice and Front shroud is connected by connecting bolt with shaft compression;The outer ring of front shroud is coupled inner sleeve by ring flange;Ultrasonic transformer is arranged at The front end of ultrasonic transducer, ultrasonic clipping tool head are arranged at the front end of ultrasonic transformer;Supersonic generator is by conducting wire with surpassing Acoustic wave transducer is connected.
Further, the transverse shifting workbench of the lathe part is that the work movement of ball-screw drive form is flat Platform;Or transverse shifting workbench is the work mobile platform of linear motor drive form;It is ball to vertically move workbench The work mobile platform of leading screw drive form;Or vertically move the work movement that workbench is linear motor drive form and put down Platform.
Further, the fixed frame of the lathe part is bolted with transverse movement platform;The upper end of fixed frame It is provided with the steel work top by quenching, the connection mode of work top and fixed frame is is bolted.
Further, the output shaft of the upper end driving motor of the ultrasonic cutting part is connected with connecting shaft cylinder;Lower end drives The output shaft of motor is connected with a side end face of inner sleeve by shaft coupling.
Further, the ultrasonic cutting part sets collector ring or uses the method for non-contact power supply as ultrasonic wave Transducer is powered.
Further, the ultrasonic transducer and ultrasonic transformer of the ultrasonic cutting part, ultrasonic transformer and ultrasonic clipping tool Head is coupled for screw or welding manner is coupled.
Further, the material of the ultrasonic clipping tool head of the ultrasonic cutting part can be TC4,316L, aluminium, No. 45 Steel.
Further, the ultrasonic clipping tool head of the ultrasonic cutting part is dish type, dish type ultrasound clipping tool head Circumferential edges have tip edges of the section for wedge shape.
Further, the outside diameter of ultrasonic clipping tool head is between 20mm ~ 200mm.
Further, the driving motor of the ultrasonic cutting part is stepper motor or servomotor.
Further, the upper end driving motor of the ultrasonic cutting part and lower end driving motor are to carry rotary encoder Rotating speed and phase controllable motor.
Further, the ultrasonic transducer only has one group of piezoelectric ceramic piece.
Further, the ultrasonic transducer only needs ultrasonic electric signal excitation all the way.
Further, the operating frequency range of the ultrasonic transducer is 18kHz-60kHz.
Further, described supersonic generator effect is that alternating current is converted into the height that matches with ultrasonic transducer Frequency ac signal, driving ultrasonic transducer carry out axial ultrasonic vibration, and then make by ultrasonic transformer transmission to be fixed on change The ultrasonic clipping tool head of width bar front end also produces ultrasonic activation.
Further, the axial ultrasonic vibration of ultrasonic transducer be delivered to the dish configuration of ultrasonic clipping tool head with Afterwards, the flexural vibrations and radial vibration of dish configuration can be excited.
Further, the ultrasonic cutting part, is provided with precompression spring in connecting shaft cylinder, when ultrasonic clipping tool head with When cloth to be processed is in contact, there is provided the precompression between work top below tool heads and cloth and cloth, with work Make table top and form the contact with certain pressure, the size of precompression is 1N ~ 200N.
Further, the hardness of the material of the ultrasonic clipping tool head of the ultrasonic cutting part is less than steel work after quenching Make the hardness of table top, and ultrasonic clipping tool head can be replaced.
Further, the screw side of the lathe part is provided with the matched carry out stable drive of polished rod.
Advantages of the present invention:
Handle existing cloth cut there are the problem of on, it is a kind of based on the fabric dividing device of ultrasonic wave numerically-controlled machine tool and ultrasound Ripple cutting combines, can be quick, efficiently, accurately cloth is cut according to clothes pattern, so as to obtain desired setting Cloth shape, instead of traditional artificial cloth and cuts, brighter particularly with the clothing cloth shape of complicated shape, advantage It is aobvious, largely alleviate the workload and labor intensity of people, can accomplish 24 it is small when work, without rest, improve Work efficiency.
Brief description of the drawings
Fig. 1 is a kind of fabric dividing device installation diagram based on ultrasonic wave of the present invention;
Fig. 2 is a kind of fabric dividing device lathe partial schematic diagram based on ultrasonic wave of the present invention;
Fig. 3 is a kind of fabric dividing device ultrasonic cutting partial schematic diagram based on ultrasonic wave of the present invention;
Fig. 4 is a kind of fabric dividing device ultrasonic cutting phantom based on ultrasonic wave of the present invention;
Fig. 5 is a kind of ultrasonic transducer sectional view of fabric dividing device ultrasonic cutting part based on ultrasonic wave of the present invention;
Fig. 6 is a kind of fabric dividing device ultrasonic cutting partial isometric views based on ultrasonic wave of the present invention;
Fig. 7 is a kind of fabric dividing device ultrasonic cutting part detail view based on ultrasonic wave of the present invention;
In figure, 1- lathes part, 2- ultrasonic cuttings part, 11- bases, 12- screws, 13- columns, 14- pair of nut, 15- shaft couplings Device, 16- driving motors, the vertical micro-adjusting mechanisms of 17-, 18- supporting racks, 19- fixed frames, 110- transverse movement platforms, 111- longitudinal directions Motion platform, 21- upper ends driving motor, 22- connecting shaft cylinders, 23- lower ends driving motor, 24- outer sleeves, 25- ultrasound clipping tools Head, 26- ultrasonic transformers, 27- motor flange disks, 28- springs, 29- bearings, 210- inner sleeves, 211- ultrasonic transducers, 212- methods Blue disk, 2111- back shrouds, 2112- connection bolts, 2113- electrode slices, 2114- piezoelectric ceramic pieces, 2115- front shrouds.
Embodiment
The invention will be further described with reference to the accompanying drawings and embodiments:
A kind of fabric dividing device concrete operations based on ultrasonic wave of the present invention are as follows using step:
A kind of fabric dividing device based on ultrasonic wave, it is characterised in that including lathe part 1, ultrasonic cutting part 2, electrical control Device;Lathe part 1 includes:Base 11, screw 12, column 13, pair of nut 14, shaft coupling 15, drives motor 16, vertical fine setting Mechanism 17, supporting rack 18, lengthwise movement platform 111, transverse movement platform 110, fixed frame 19;Column 13 is installed on by screw Base 11, driving motor 16 are installed on the top of column 13 by screw, and driving motor 16 is connected by shaft coupling 15 with leading screw 12, Pair of nut 14 is connected by bolt and vertical micro-adjusting mechanism 17, and leading screw 12 and pair of nut 14 are connected in one by threaded engagement Rise, supporting rack 18 is arranged on vertical micro-adjusting mechanism 17;Lengthwise movement platform 111 is connected by bolts setting on the pedestal 11, Transverse movement platform 110, which is connected by bolts, to be arranged on lengthwise movement platform 111, and fixed frame 19, which is connected by bolts, to be arranged on On transverse movement platform 110;Ultrasonic cutting part 2 is arranged on the downside of supporting rack 18 of lathe part 1, and ultrasonic cutting part 2 is wrapped Include:Upper end drives motor 21, outer sleeve 24, connecting shaft cylinder 22, spring 28, lower end driving motor 23, motor flange disk 27, inner sleeve 210, bearing 29, ultrasonic transducer 211, ring flange 212, ultrasonic transformer 26, ultrasonic clipping tool first 25, supersonic generator; Upper end driving motor 21 is arranged at 18 upper end of supporting rack;Connecting shaft cylinder 22 is arranged at the upper end of outer sleeve 24;28 company of being arranged at of spring In beam barrel 22;Lower end driving motor 23 is arranged at the side of 24 end face of outer sleeve;Motor flange disk 27 is arranged on lower end driving electricity The outer ring of machine 23;The outer ring both sides of inner sleeve 210 are each provided with a bearing 29, and outer ring and 24 inner ring of outer sleeve of bearing 29 are matched somebody with somebody Close;The inner ring of bearing 29 coordinates with 210 outer ring of inner sleeve;Ultrasonic transducer 211 is arranged at the inside of inner sleeve 210;Ultrasound Wave transducer 211 includes:Back shroud 2111, piezoelectric ceramic piece 2114, electrode slice 2113, front shroud 2115, bolt 2112;Piezoelectricity Potsherd 2114 is arranged at the rear end of front shroud 2115;Electrode slice 2113 is arranged between piezoelectric ceramic piece 2114;Back shroud 2111 It is arranged at 2114 rear end of piezoelectric ceramic piece;Back shroud 2111, piezoelectric ceramic piece 2114, electrode slice 2113 and front shroud 2115 pass through Bolt 2112 is coaxially connected;The outer ring of front shroud 2115 is coupled inner sleeve 210 by ring flange 212;Ultrasonic transformer 26 is arranged at super The front end of acoustic wave transducer 211, ultrasonic clipping tool first 25 are arranged at the front end of ultrasonic transformer 26;Supersonic generator passes through conducting wire It is connected with ultrasonic transducer 211.
The cloth that needs are cut, is placed on the work top on fixed frame 19, is fixed by the bar shaped magnet of making Fixture, compression is fixed in the surrounding absorption workbench of cloth in face of cloth.Open the switch of lathe, the program generation that will be finished Code is inputted by USB interface in the digital control system of lathe, and then operation lathe, returns to the cutting sword of ultrasonic clipping tool first 25 The coordinate origin of lathe, then transfers vertical micro-adjusting mechanism 17, allows cutting edge to be contacted with the cloth on work top, and ultrasound Clipping tool first 25 provides cloth by spring 28 pretightning force of one 10N;
Described supersonic generator effect is that 220V alternating currents are converted into 30kHz, 500V for matching with ultrasonic transducer High-frequency ac electric signal, drives the ultrasonic vibration of ultrasonic transducer axial direction, and then by ultrasonic transformer transmission, makes to be fixed on luffing The ultrasonic clipping tool head of bar front end also produces ultrasonic activation.
Allow lathe executive program, longitudinal workbench 111 of lathe is distinguished in Control coordinate system with horizontal workbench 110 X, Y-direction, the upper end driving motor output shaft with rotary encoder rotation control Z-direction on rotation, pass through phase Controllable function, the plane where making the dish configuration of ultrasonic clipping tool head are consistent with direction of feed all the time.So as to Realize the cutting of variously-shaped cloth on work top;Since the rotation of lower end driving motor output shaft is so as to drive inner sleeve 210 rotation, and then the rotation of first 25 disc structure of ultrasonic clipping tool is driven, due to the circumference of dish type ultrasound clipping tool head Edge has tip edges of the section for wedge shape, and the disk-shaped structure edge of ultrasonic clipping tool head can also produce ultrasonic vibration, Therefore ultrasonic clipping tool first 25 is in cloth rotation process, you can be cut to cloth, and rotating disk knot Structure circumferential edge is identical with the speed that disc structure is fed along linear velocity, and cloth will not produce sliding on work top, so that The shape of programming is cut out, after the completion of cutting, ultrasonic clipping tool first 25 is raised above, and is then return to machine coordinates original Point.
Above is presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, caused function are made During with scope without departing from technical solution of the present invention, protection scope of the present invention is belonged to.

Claims (10)

1. a kind of fabric dividing device based on ultrasonic wave, it is characterised in that including lathe part, ultrasonic cutting part, electrical control Device;
Lathe part includes:Base, screw, column, pair of nut, shaft coupling, drives motor, vertical micro-adjusting mechanism, supporting rack, is indulged To motion platform, transverse movement platform, fixed frame;Column is installed on base by screw, and driving motor is installed by screw Above column, driving motor is connected by shaft coupling with leading screw, and pair of nut is connected by bolt and vertical micro-adjusting mechanism, silk Thick stick and pair of nut are linked together by threaded engagement, and supporting rack is arranged on vertical micro-adjusting mechanism;Lengthwise movement platform passes through Bolt-connection is arranged on base, and transverse movement platform, which is connected by bolts, to be arranged on lengthwise movement platform, and fixed frame passes through Bolt-connection is arranged on transverse movement platform;
Ultrasonic cutting part is arranged on the downside of the supporting rack of lathe part, and ultrasonic cutting part includes:Upper end drives motor, overcoat Cylinder, connecting shaft cylinder, spring, lower end driving motor, motor flange disk, inner sleeve, bearing, ultrasonic transducer, ring flange, luffing Bar, ultrasonic clipping tool head, supersonic generator;Upper end driving motor is arranged at supporting rack upper end;Connecting shaft cylinder is arranged at overcoat The upper end of cylinder;Spring is arranged in connecting shaft cylinder;Lower end driving motor is arranged at the side of outer sleeve end face;Motor flange disk is set In the outer ring of lower end driving motor;The outer ring both sides of inner sleeve are each provided with a bearing, outer ring and the outer sleeve inner ring of bearing Coordinate;The inner ring of bearing coordinates with inner sleeve outer ring;Ultrasonic transducer is arranged at the inside of inner sleeve;Ultrasonic transducer bag Include:Back shroud, piezoelectric ceramic piece, electrode slice, front shroud, connects bolt;Piezoelectric ceramic piece is arranged at the rear end of front shroud;Electrode Piece is arranged between piezoelectric ceramic piece;Back shroud is arranged at piezoelectric ceramic piece rear end;Back shroud, piezoelectric ceramic piece, electrode slice and Front shroud is connected by connecting bolt with shaft compression;The outer ring of front shroud is coupled inner sleeve by ring flange;Ultrasonic transformer is arranged at The front end of ultrasonic transducer, ultrasonic clipping tool head are arranged at the front end of ultrasonic transformer;Supersonic generator is by conducting wire with surpassing Acoustic wave transducer is connected.
A kind of 2. fabric dividing device based on ultrasonic wave according to claim 1, it is characterised in that the transverse shifting of lathe part Workbench is the work mobile platform of ball-screw drive form;Or transverse shifting workbench is linear motor drive form Work mobile platform;Vertically move the work mobile platform that workbench is ball-screw drive form;Or vertically move work It is the work mobile platform of linear motor drive form as platform.
A kind of 3. fabric dividing device based on ultrasonic wave according to claim 1, it is characterised in that the fixed frame of lathe part with Transverse movement platform is bolted;The upper end of fixed frame is provided with the steel work top by quenching, work top with The connection mode of fixed frame is to be bolted.
A kind of 4. fabric dividing device based on ultrasonic wave according to claim 1, it is characterised in that the upper end of ultrasonic cutting part The output shaft of driving motor is connected with connecting shaft cylinder;The output shaft of lower end driving motor and a side end face of inner sleeve pass through shaft coupling It is connected.
5. a kind of fabric dividing device based on ultrasonic wave according to claim 1, it is characterised in that ultrasonic cutting part sets collection Electric ring uses the method for non-contact power supply to power for ultrasonic transducer.
A kind of 6. fabric dividing device based on ultrasonic wave according to claim 1, it is characterised in that the ultrasound of ultrasonic cutting part Wave transducer and ultrasonic transformer, ultrasonic transformer is coupled with ultrasonic clipping tool head for screw or welding manner is coupled.
A kind of 7. fabric dividing device based on ultrasonic wave according to claim 1, it is characterised in that the ultrasound of ultrasonic cutting part The material of clipping tool head can be TC4,316L, aluminium, No. 45 steel.
A kind of 8. fabric dividing device based on ultrasonic wave according to claim 1, it is characterised in that the ultrasound of ultrasonic cutting part Clipping tool head is dish type, and the circumferential edges of dish type ultrasound clipping tool head have tip edges of the section for wedge shape.
A kind of 9. fabric dividing device based on ultrasonic wave according to claim 1, it is characterised in that the driving of ultrasonic cutting part Motor is stepper motor or servomotor.
A kind of 10. fabric dividing device based on ultrasonic wave according to claim 1, it is characterised in that ultrasonic cutting part it is upper End driving motor and lower end driving motor are rotating speed and phase controllable motor with rotary encoder.
CN201810009454.3A 2018-01-05 2018-01-05 A kind of fabric dividing device based on ultrasonic wave Pending CN107956102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810009454.3A CN107956102A (en) 2018-01-05 2018-01-05 A kind of fabric dividing device based on ultrasonic wave

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Application Number Priority Date Filing Date Title
CN201810009454.3A CN107956102A (en) 2018-01-05 2018-01-05 A kind of fabric dividing device based on ultrasonic wave

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108582518A (en) * 2018-04-28 2018-09-28 长兴睿鸿耐火材料有限公司 A kind of refractory brick portable edge-neatening apparatus
CN109940710A (en) * 2019-04-02 2019-06-28 南京林业大学 A kind of vertical diameter vibration thin plate Scissoring device and its application
CN112064320A (en) * 2020-09-10 2020-12-11 甘荣富 Fabric cutting equipment capable of adjusting direction of cutter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51119354A (en) * 1975-03-13 1976-10-19 Sutaashion Serubisu Tekusuteir Device for applying ultrasonic effect to cutting* welding and other working of waven fabric or thin article partially or entirely heat soluble
CN103978560A (en) * 2014-05-27 2014-08-13 华侨大学 Quick-change ultrasonic vibration auxiliary sawing device
CN104438029A (en) * 2014-12-09 2015-03-25 苏州科技学院 Single excitation ultrasonic elliptic vibration micro-machining working platform
CN105773715A (en) * 2016-04-15 2016-07-20 苏州井上中鼎办公机器制品有限公司 High-frequency vibration worktable for forming holes on sponge
CN207958827U (en) * 2018-01-05 2018-10-12 苏州科技大学 A kind of fabric dividing device based on ultrasound

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51119354A (en) * 1975-03-13 1976-10-19 Sutaashion Serubisu Tekusuteir Device for applying ultrasonic effect to cutting* welding and other working of waven fabric or thin article partially or entirely heat soluble
CN103978560A (en) * 2014-05-27 2014-08-13 华侨大学 Quick-change ultrasonic vibration auxiliary sawing device
CN104438029A (en) * 2014-12-09 2015-03-25 苏州科技学院 Single excitation ultrasonic elliptic vibration micro-machining working platform
CN105773715A (en) * 2016-04-15 2016-07-20 苏州井上中鼎办公机器制品有限公司 High-frequency vibration worktable for forming holes on sponge
CN207958827U (en) * 2018-01-05 2018-10-12 苏州科技大学 A kind of fabric dividing device based on ultrasound

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108582518A (en) * 2018-04-28 2018-09-28 长兴睿鸿耐火材料有限公司 A kind of refractory brick portable edge-neatening apparatus
CN109940710A (en) * 2019-04-02 2019-06-28 南京林业大学 A kind of vertical diameter vibration thin plate Scissoring device and its application
CN112064320A (en) * 2020-09-10 2020-12-11 甘荣富 Fabric cutting equipment capable of adjusting direction of cutter

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Application publication date: 20180424