CN109318107B - Handheld device for cutting aramid fiber laminated plate and processing method - Google Patents

Handheld device for cutting aramid fiber laminated plate and processing method Download PDF

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Publication number
CN109318107B
CN109318107B CN201811091906.3A CN201811091906A CN109318107B CN 109318107 B CN109318107 B CN 109318107B CN 201811091906 A CN201811091906 A CN 201811091906A CN 109318107 B CN109318107 B CN 109318107B
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China
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plate
cutting
grinding wheel
working
processing
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CN109318107A (en
Inventor
史振宇
崔鹏
李鑫
张帅
蒋森河
段宁民
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Shandong University
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Shandong University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00Other grinding machines or devices
    • B24B27/06Grinders for cutting-off
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00Drives or gearings; Equipment therefor
    • B24B47/10Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power

Abstract

The invention discloses a cutting processing device and a cutting processing method for an aramid fiber laminated plate, which comprise two grinding wheel cutting tables which are arranged up and down symmetrically, wherein each independent cutting platform comprises a driving motor and a working panel which are arranged on a base, the driving motor drives a grinding wheel which provides cutting force to rotate through a connecting piece I, the grinding wheel extends out of a working reference surface of the working panel, the working reference surface is parallel to the axis of the motor, and the working reference surface is used for positioning a plate to be cut. During cutting, the workpiece only needs to lean against the positioning baffle and move along the linear speed direction of the grinding wheel.

Description

Handheld device for cutting aramid fiber laminated plate and processing method
Technical Field
The invention relates to the field of secondary processing of aramid fiber laminated plates, in particular to grinding and cutting equipment and a processing method of a diamond abrasive grinding wheel.
Background
The existing common cutting and adding methods of aramid fiber laminated plates comprise laser cutting, water jet cutting, saw cutting, milling and the like, wherein the laser cutting and the water jet cutting belong to special processing and have higher cost; sawing is relatively traditional and is common in the field of wood processing, but because the sawing is intermittent cutting, the impact on the board is large, and the cutting of the composite material easily causes serious processing defects; milling is generally used in a machining process with higher precision requirement, a large amount of material waste is caused by cutting, meanwhile, milling is also a machining mode of intermittent cutting, a plate matrix epoxy resin is a brittle material, aramid fiber is an organic fiber with high toughness and is not easy to cut off in machining, when a fiber matrix is not cut off, the matrix material is broken due to large impact, and the fiber material is difficult to cut off again, so that various machining defects are formed.
Disclosed a combined material grinding side cut device in patent 201310019560.7, the device is based on carbon-fibre composite designs, serves the machine tool, actually is a type of lathe reequip equipment, adds man-hour to aramid fiber composite, because aramid fiber's high toughness and relatively poor heat conductivity, easily appears deckle edge, defects such as burn. In addition, in this patent, the clearance between two emery wheel slices is difficult to eliminate completely, can't effectively cut off to the panel, and obvious fracture remains appears, influences the processing surface machining quality.
Disclosure of Invention
The invention provides a cutting processing platform and a processing method for a resin-based aramid fiber composite material, aiming at solving the technical problems in the prior art, and the cutting processing platform and the processing method are used for improving the rough processing convenience and the cutting quality of a hand aramid fiber laminated board.
The technical scheme adopted by the invention is as follows:
the utility model provides a cutting process platform for resin base aramid fiber combined material, includes two cutting device that longitudinal symmetry set up, every solitary cutting device is including installing driving motor and a work panel on the base, driving motor pass through the rotation of abrasive wheel section that provides cutting force of connecting piece I drive, abrasive wheel section is along stretching to outside the work reference surface of work panel, the work reference surface with the axis of motor is parallel, and the work reference surface is used for the location to wait to cut panel.
Preferably, a driving shaft of the driving motor extends in a horizontal direction.
Preferably, the connecting piece I is cylindrical, one end of the connecting piece I is connected with the grinding wheel slice through two fixing discs, the other end of the connecting piece I is provided with a connecting round hole, and the rotating shaft of the driving motor is concentrically arranged in the connecting round hole.
Preferably, the motor is connected with the motor connecting frame through a connecting piece II, and the bottom of the motor connecting frame is connected with a height adjusting plate horizontally arranged through a connecting piece III, so that the height adjustment of the grinding wheel and the driving motor is realized.
Preferably, the height adjusting plate is connected with a bottom plate through a connecting piece IV, and the bottom plate is connected with a working panel through a side plate.
Preferably, the motor connecting frame is of an L-shaped structure, wherein a vertical part of the L-shaped structure is connected with the motor through a bolt, and the connecting piece I penetrates through the vertical part and plays a supporting role for the connecting piece I; the horizontal part is connected with a horizontally arranged height adjusting plate through a connecting piece III.
Preferably, the connection mode among the side plates, the bottom plate and the working panel is an insertion mode.
Preferably, the two working panels are arranged up and down and connected through bolts, so that the connection of the two opposite cutting platforms is realized, and the distance between the two working panels can be adjusted.
Preferably, the reference surface of the upper and lower working panels is provided with a positioning baffle plate to be cut for processing, and the position of the positioning baffle plate is adjustable.
The specific processing method comprises the following steps:
firstly, adjusting the position of a positioning baffle on a working panel according to the size of a plate to be cut, so that the plate is positioned in contact with the working panel and the positioning baffle;
the height of the height adjusting plate is adjusted to ensure that the height of the grinding wheel slice exposed out of the working panel is less than the thickness of the plate to be cut, and the height of the part of the abrasive particles of the slice exposed out of the working panel is about 1/2 of the thickness of the plate to be cut.
Adjusting the distance between the working panels by adjusting bolts, wherein the distance between the pair of working panels is required to be adjusted to the thickness of the plate to be cut; the driving motors work, the upper driving motor and the lower driving motor respectively rotate along the clockwise direction and the anticlockwise direction, and the two grinding wheel slices are guaranteed to work in the same working plane; the equipment needs to assemble according to the assembly sketch strictly in the assembling process, and on the premise that the manufacturing size precision of parts is guaranteed, the number of turns of connecting pressing sheets screwed in the assembling process needs to be completely the same so as to guarantee that two grinding wheel slices are fixed on the same working plane, and if the relative positions of the two grinding wheels are not proper, the processing defect of uneven processing surface can be caused.
After the device is adjusted, only a feeding direction force is provided for the plate to be cut manually or by using other auxiliary facilities to feed the cut plate, so that the rough machining and cutting of the plate can be finished; when the plate to be cut is fed, the negative stepping is needed along the length direction of the positioning baffle plate, namely the X direction, so as to ensure that the cutting force provided by the grinding wheel slice points to the inside of the plate.
The invention can achieve the following beneficial effects:
the machining device provided by the invention comprises a group of symmetrical cutting workbenches, the symmetrical cutting workbenches are relatively fixed after the distance is adjusted, a workpiece to be machined is positioned through a reference plane on the workbench, and the workpiece only needs to lean against a positioning baffle plate during cutting and moves along the direction perpendicular to the linear speed of the grinding wheel slice.
The ultrathin section on the outer edge of the grinding wheel section can effectively cut off high-strength fibers in the composite material, and the defects of spinning, burrs and the like are reduced; the upper and lower simultaneous cutting can effectively inhibit the generation of the layering defects on the upper and lower surfaces of the composite material plate; the cutting surface after being ground by diamond abrasive particles obviously reduces fiber burrs and obviously improves the surface quality; meanwhile, in the process of high-speed cutting of the grinding wheel slices, the cold air cooling device continuously conveys cold air to the grinding wheel slices so as to ensure that cutting heat is timely led out and avoid burning of the tangent planes.
The small-sized light-weight cutting platform can be used in the use scenes of production and processing of small-scale composite materials such as laboratories, and the cutting and processing of the composite materials are simply and efficiently realized.
The invention replaces milling with grinding, greatly reduces impact force in the processing process and obtains good processing surface quality. Meanwhile, the grinding force points to the inside of the plate to inhibit the delamination of the plate, and compared with a left-handed milling cutter and a right-handed milling cutter which can inhibit the delamination, the processing cost is greatly reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic structural diagram of a power plant provided by an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a depth adjustment assembly according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a work panel gap adjustment component according to an embodiment of the present invention.
Reference numerals:
0. a working panel; 1. a drive motor; 2. a motor connecting frame; 3. a height adjustment plate; 4. a connecting piece I; 5. connecting a gasket; 6. slicing by using a grinding wheel; 7. connecting the pressing sheets; 8. a base plate; 9. a side plate;
00 a first bolt, 01 a first nut and 02 a positioning baffle; 20 second bolt, 21 flat washer, 30 first spring washer, 31 second nut, 32 third nut, 33 second spring washer, 34 third spring washer, 35 fourth nut, 36 third bolt.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
The terms "mounted", "connected", "fixed", and the like in the present invention are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and the terms used in the present invention should be understood as having specific meanings to those skilled in the art.
As introduced in the background art, the laser cutting and the water jet cutting in the prior art belong to special machining, and the cost is high; sawing is relatively traditional and is common in the field of wood processing, but because the sawing is intermittent cutting, the impact on the board is large, and the cutting of the composite material easily causes serious processing defects; the milling is usually used in a processing procedure with higher precision requirement, a large amount of material waste is caused by cutting, meanwhile, the milling is also a processing mode of interrupted cutting, the epoxy resin of the plate substrate is a brittle material, the aramid fiber is an organic fiber with stronger toughness, the cutting is not easy to be carried out in the processing, when the fiber substrate is not cut, the substrate material is broken by larger impact, the fiber material is difficult to be cut again, and then various processing defects are formed, and in order to solve the technical problems, the invention provides the cutting processing device for the aramid fiber laminated plate; according to the invention, a cutting and grinding combined mode is adopted, the outer edge 2mm of the grinding wheel slice is an ultrathin sawtooth blade, diamond abrasive particles are electroplated on the inner double surfaces of the ultrathin sawtooth blade, the impact force in the processing process is reduced while the cutting effect is kept, and a better processing surface quality is obtained by adopting a composite processing mode. Experimental data shows that the damage to the surface layer of the composite material caused by cutting with the ultrathin blade is smaller than that caused by directly grinding with an ultrathin grinding wheel slice, and the ultrathin blade is a better cutting and processing solution. Meanwhile, the cutting force points to the inside of the plate to inhibit the delamination of the plate, so that compared with a left-handed milling cutter and a right-handed milling cutter which can inhibit the delamination, the processing cost is greatly reduced. Meanwhile, the device adopts cold air cooling, heat generated in the grinding and cutting process is timely removed, and the processing performance and the processing sustainability of the grinding wheel slice are ensured.
In an exemplary embodiment of the present invention, as shown in fig. 1 to 3, the present invention provides a machining apparatus, which includes two grinding wheel cutting tables symmetrically arranged up and down, each of the individual cutting platforms includes a driving motor mounted on a base and a working panel, the driving motor drives a grinding wheel slice providing a cutting force to rotate through a connecting member I, the grinding wheel slice extends out of a working reference plane of the working panel, the working reference plane is parallel to an axis of the motor, and the working reference plane is used for positioning a plate to be cut.
Specifically, as shown in the figure: the grinding wheel slicing machine comprises a working panel 0, a side plate 9 used for supporting the working panel, a bottom plate 8 connected with the side plate, a height adjusting plate 3 installed on the bottom plate, a motor 1, a motor connecting frame 2 used for fixing the motor and fixing the motor with a height connecting plate, a connecting piece I4 installed on a motor rotating shaft, a grinding wheel slice 6 installed on a connecting piece 4, a connecting gasket 5 and a connecting pressing piece 7 used for fixing the grinding wheel slice 6 in a strand mode, and a baffle 02 on the working panel 0 and the working panel provide a positioning reference together to guarantee machining precision.
The connecting piece I4 is cylindrical, one end of the connecting piece I4 is connected with the grinding wheel slice through two fixing discs, the other end of the connecting piece I4 is provided with a connecting round hole, and the rotating shaft of the driving motor is concentrically arranged in the connecting round hole.
Further, the motor connecting frame 2 is of an L-shaped structure, wherein a vertical part of the L-shaped structure is connected with the motor through a bolt, and the connecting piece I penetrates through the vertical part and plays a supporting role for the connecting piece I; the horizontal part is connected with a horizontally arranged height adjusting plate through a connecting piece III.
Further, the motor 1 is provided with a threaded hole, the motor connecting plate 2 is provided with a through hole, and the motor 1 is fastened with the connecting plate 2 through a motor fixing screw 10. One end of the connecting piece 4 is provided with a radial threaded hole which is provided with a set screw so as to be fixed with the rotating shaft of the motor 1, and the other end of the connecting piece 4 is provided with a plane and a stud. The connecting gasket 5 is arranged on the stud through a through hole and is provided with a bulge which is matched with the plane of the connecting piece 4 so as to fix the relative position. The grinding wheel slice 6 is arranged on the stud through a through hole, the connecting pressing sheet 7 is provided with a threaded hole and is matched and connected with the stud of the connecting piece 4, and the grinding wheel slice 6 is fastened. The motor connecting plate 2 is connected with the height adjusting plate 3 through a tightening second bolt 20 and a second nut 31 and is provided with a flat washer 21 and a spring washer 30 to prevent losing pre-tightening force in the process vibration. The height adjusting plate 3 is connected with the bottom plate 8 through a bolt 36, a third nut 32 and a fourth nut 35, and is provided with a second spring washer 33 and a third spring washer 34 to prevent losing of pre-tightening force during the machining vibration, and preferably, the third bolt 36 is connected with the bottom plate 8 through a threaded hole.
Furthermore, the bottom plate 8 and the side plates 9, the side plates 9 and the working panel 0 are all connected in a tenon-and-mortise structure, the structure simplifies the assembly of the structural member, but has certain requirements on the size progress and the matching precision of the structural member, and angle irons can also be selected for connection.
Further, work panel 0 is equipped with a through-hole and a screw hole, and first bolt 00 and gasket pass through the riveting and pack into the through-hole, and the back of packing into is undetachable to with the screw hole cooperation connection to work panel 0, first nut 01 is connected with the cooperation of first bolt 00 and provides the pretightning force in order to prevent that first bolt 00 from becoming flexible in the processing vibration. The positioning baffle 02 is adjustable in the Y-direction position to meet the requirements for cutting of plates of different sizes.
The specific processing method comprises the following steps:
when the processing device works, the position of the positioning baffle 02 on the working panel is required to be adjusted according to the size of a plate to be cut, so that the plate is in contact with the working panel 0 and the positioning baffle 02 for positioning;
the height adjusting bolt 36 is adjusted to adjust the height of the height adjusting plate 3, and the height of the grinding wheel slice 6 exposed out of the working panel 0 needs to be ensured to be smaller than the thickness of the plate to be cut.
Adjusting the distance between the working panels by the adjusting bolts needs to adjust the distance between the pair of working panels 0 to the thickness of the plate to be cut. When the motor 1 works, the upper motor 1 and the lower motor 1 respectively rotate along the clockwise direction and the anticlockwise direction, and the two grinding wheel slices 6 are guaranteed to work in the same working plane.
When the workpiece is fed, the cutting force provided by the grinding wheel slice 6 is ensured to be directed to the inside of the plate by carrying out negative stepping along the length direction of the baffle 02, namely the X direction.
According to the content, after the device is adjusted, only manual or other auxiliary facilities are needed to provide force in the feeding direction to feed the workpiece, so that rough machining and cutting of the plate can be completed, the machining quality of the workpiece is improved compared with rough milling of large radial cutting depth, and convenience is brought to further milling.
The machining device provided by the invention comprises a group of symmetrical cutting workbenches, the symmetrical cutting workbenches are relatively fixed after the distance is adjusted, a workpiece to be machined is positioned through a reference plane on the workbench, and the workpiece only needs to lean against a positioning baffle plate during cutting and moves along the direction perpendicular to the linear speed of the grinding wheel slice.
The ultrathin section on the outer edge of the grinding wheel section can effectively cut off high-strength fibers in the composite material, and the defects of spinning, burrs and the like are reduced; the upper and lower simultaneous cutting can effectively inhibit the generation of the layering defects on the upper and lower surfaces of the composite material plate; the cutting surface after being ground by diamond abrasive particles obviously reduces fiber burrs and obviously improves the surface quality; meanwhile, in the process of high-speed cutting of the grinding wheel slices, the cold air cooling device continuously conveys cold air to the grinding wheel slices so as to ensure that cutting heat is timely led out and avoid burning of the tangent planes.
The small-sized light-weight cutting platform can be used in the use scenes of production and processing of small-scale composite materials such as laboratories, and the cutting and processing of the composite materials are simply and efficiently realized.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention.

Claims (9)

1. A cutting processing device for aramid fiber laminated plates is characterized by comprising two grinding wheel slice cutting tables which are arranged up and down symmetrically, wherein each independent cutting platform comprises a driving motor and a working panel which are arranged on a base, the driving motor drives a grinding wheel slice which provides cutting force to rotate through a connecting piece I, the grinding wheel slice extends out of a working datum plane of the working panel, the outer edge of the grinding wheel slice is an ultrathin sawtooth blade, diamond abrasive grains are electroplated on the two inner sides of the grinding wheel slice, the two grinding wheel slices are arranged in the same plane, and the connecting line of the two grinding wheel slices is not perpendicular to the working panel; the height of the abrasive particle part of the grinding wheel slice exposed out of the working panel is 1/2 the thickness of the plate to be cut, the working reference surface is parallel to the axis of the motor, and the working reference surface is used for positioning the plate to be cut;
the motor pass through connecting piece II and motor link to each other, the bottom of motor link to each other with the altitude mixture control board that the level set up through connecting piece III, and then realize abrasive wheel section and driving motor's altitude mixture control.
2. The cutting process apparatus for the aramid fiber laminate as claimed in claim 1, wherein a driving shaft of the driving motor extends in a horizontal direction.
3. The cutting device for the aramid fiber laminate as claimed in claim 1, wherein the connecting member I has a cylindrical shape, one end of which is connected to the grinding wheel chip by two fixing disks, and the other end of which is provided with a connecting circular hole, and the rotating shaft of the driving motor is concentrically mounted in the connecting circular hole.
4. The cutting and processing device for the aramid fiber laminate as claimed in claim 1, wherein the height adjusting plate is connected to a bottom plate by a connecting member IV, and the bottom plate is connected to a working panel by a side plate.
5. The cutting and processing device for the aramid fiber laminated plate as claimed in claim 4, wherein the side plates are connected with the bottom plate and the working panel in a plug-in manner.
6. The cutting and processing device for the aramid fiber laminate as claimed in claim 1, wherein the motor connecting frame is an L-shaped structure, wherein a vertical portion of the L-shaped structure is connected with the motor through a bolt, the connecting member I passes through the vertical portion, and the vertical portion supports the connecting member I; the horizontal part is connected with a horizontally arranged height adjusting plate through a connecting piece III.
7. The cutting processing device for the aramid fiber laminate as claimed in claim 1, wherein the two working boards disposed up and down are connected by bolts, so that the connection of the two cutting platforms is achieved, and the distance between the reference surfaces of the two working boards can be adjusted.
8. The cutting and processing device for the aramid fiber laminate as claimed in claim 7, wherein a positioning stop plate for processing the workpiece is provided on the reference surface of the upper and lower working panels, and the position of the positioning stop plate is adjustable.
9. The method for processing an aramid fiber laminate using the cutting processing apparatus as recited in any one of claims 1 to 8,
firstly, adjusting the position of a positioning baffle on a working panel according to the size of a plate to be cut, so that the plate is positioned in contact with the working panel and the positioning baffle;
adjusting the height of the height adjusting plate to ensure that the height of the grinding wheel slice exposed out of the working panel is less than the thickness of the plate to be cut, and the height of the part of the abrasive particles of the slice exposed out of the working panel is 1/2 the thickness of the plate to be cut;
adjusting the distance adjusting bolt of the working panels to adjust the distance between the pair of working panels to the thickness of the plate to be cut; the driving motors work, the upper driving motor and the lower driving motor respectively rotate along the clockwise direction and the anticlockwise direction, and the two grinding wheel slices are guaranteed to work in the same working plane;
after the device is adjusted, only a feeding direction force is provided for the plate to be cut manually or by using other auxiliary facilities to feed the cut plate, so that the rough machining and cutting of the plate can be finished; when the plate to be cut is fed, the plate needs to be fed along the length direction of the positioning baffle plate, namely the X negative direction, so that the cutting force provided by the grinding wheel slice is ensured to point to the inside of the plate.
CN201811091906.3A 2018-09-19 2018-09-19 Handheld device for cutting aramid fiber laminated plate and processing method Active CN109318107B (en)

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Application Number Priority Date Filing Date Title
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CN109318107B true CN109318107B (en) 2021-01-08

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1342647A (en) * 1917-10-13 1920-06-08 Toledo Scale Co Machine for cutting agates and similar stones
CN2675374Y (en) * 2004-02-27 2005-02-02 王义强 Splint type giant superthin stone sawing machine
CN2838897Y (en) * 2005-09-08 2006-11-22 张云涛 Two up and down saw blades automatically cut plate and run saw
CN202781254U (en) * 2012-09-17 2013-03-13 河南天丰节能板材科技股份有限公司 Composite board slitting saw
CN103042459B (en) * 2013-01-18 2015-01-21 北京航空航天大学 Grinding and edge cutting device of composite material
CN104608165B (en) * 2014-12-19 2017-03-15 南京金道普禾机械装备有限公司 A kind of straw board cutter sweep

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