CN205415354U - Grind piece and grinding device - Google Patents
Grind piece and grinding device Download PDFInfo
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- CN205415354U CN205415354U CN201520785270.8U CN201520785270U CN205415354U CN 205415354 U CN205415354 U CN 205415354U CN 201520785270 U CN201520785270 U CN 201520785270U CN 205415354 U CN205415354 U CN 205415354U
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Abstract
The utility model provides a grind the piece, grind the piece and include the grinding layer, wherein, it still includes the nonwoven fabric base layer and incites somebody to action to grind the piece the nonwoven fabric base layer with the tie coat that the grinding layer bondd and is in the same place, the grinding layer includes ore sand layer, resin layer and polyurethane back of the body basic unit, the ore sand layer is in through planting the sand setting a surface of polyurethane back of the body basic unit, and by the resin layer bonds fixedly, just another surface of polyurethane back of the body basic unit with the tie coat links mutually. The utility model provides a grinding device utilizes when the grinding piece is polished to the work piece, can obtain the even effect of polishing.
Description
Technical field
This utility model relates to milling apparatus field, in particular it relates to a kind of abrasive article and a kind of milling apparatus including this abrasive article.
Background technology
In order to improve the aesthetic measure of electronic product, need to be polished in the edge of electronic product.The most conventional a kind of abrasive article is sand sponge, and this sand sponge includes sponge substrate, polyurethane back of the body base and the ore in sand form layer being arranged on polyurethane back of the body base.
Sponge substrate storage modulus is minimum, the softest and be easily deformed, and the storage modulus of polyurethane back of the body base is the biggest, and when polishing the edge of electronic product, this kind of sand sponge is positioned at the part below electronic product and can produce Inward deflection.When electronic product is when the edge polished is cambered surface, and sand sponge preferably can be fitted with the edge of electronic product, thus the effect that realizes polishing uniformly.But, when the edge of electronic product is plane, owing to there is straight flange, the deformation of sand sponge is excessive, causes a part of ore in sand form cannot fit with the surface at electronic product edge, thus has uneven strain line and produce.
The abrasive article of simultaneously uniform grinding flat work pieces and cambered surface workpiece the technical problem that this area is urgently to be resolved hurrily can be become therefore it provides a kind of.
Utility model content
One of the purpose of this utility model is to provide a kind of abrasive article and a kind of milling apparatus including this abrasive article, and described abrasive article is capable of flat work pieces and the uniform grinding of cambered surface workpiece.
To achieve these goals, as an aspect of the present utility model, a kind of abrasive article is provided, described abrasive article includes grinding layer, wherein, described abrasive article also includes nonwoven fabric base sheet material layers and the tack coat described nonwoven fabric base sheet material layers and described grinding layer being bonded together, described grinding layer includes that basic unit carried on the back by ore in sand form layer, resin bed and polyurethane, described ore in sand form layer by plant sand be arranged on described polyurethane the back of the body basic unit a surface, and be adhesively fixed by described resin bed, and described polyurethane the back of the body basic unit another surface be connected with described tack coat.
Preferably, the thickness of described grinding layer is between 0.05mm to 0.2mm.
Preferably, the thickness of described nonwoven fabric base sheet material layers is between 1.5mm to 5mm.
Preferably, described nonwoven fabric base sheet material layers includes at least one of which nonwoven layer.
Preferably, adjacent with described tack coat in described nonwoven fabric base sheet material layers one layer is described nonwoven layer, and this nonwoven fabric base sheet material layers and described polyurethane are carried on the back basic unit and is bonded together through described tack coat.
Preferably, described nonwoven fabric base sheet material layers includes that at least one of which density is at 100kg/m3To 200kg/m3Between, nonwoven layer between 0.8MP to 20MPa of storage modulus under stretch mode and at least one of which fibrous layer or foaming sponge layer, making described fibrolaminar fiber different from the fiber making described nonwoven layer, described nonwoven layer and described polyurethane are carried on the back basic unit and are bonded together through described tack coat；
Described polyurethane back of the body basic unit is made up of the polyurethane between 5MPa to 20MPa of the storage modulus under stretch mode.
Preferably, described nonwoven fabric base sheet material layers by one layer of density at 100kg/m3To 200kg/m3Between, storage modulus under the stretch mode nonwoven layer between 0.8MPa to 20MPa makes；Or described nonwoven fabric base sheet material layers is formed by multi-layer nonwoven fabrics layer stackup, at least a part of which has layer of non-woven fabric layer to be that density is at 100kg/m3To 200kg/m3Between, storage modulus under the stretch mode nonwoven layer between 0.8MPa to 20MPa；
Basic unit carried on the back by described polyurethane is that the polyurethane between 5MPa to 20MPa is constituted by the storage modulus under stretch mode.
Preferably, the thickness of described tack coat is between 0.03mm to 0.3mm.
Preferably, described abrasive article also includes that connecting portion, described connecting portion are arranged on the surface deviating from described tack coat of described nonwoven fabric base sheet material layers, and is formed with round wool fibre or multiple barb on the surface of described connecting portion.
As another aspect of the present utility model, it is provided that a kind of milling apparatus, described milling apparatus includes abrasive article, it is characterised in that described abrasive article is above-mentioned abrasive article provided by the utility model.
Preferably, described milling apparatus also includes installing pedestal, and described installation pedestal has installed surface, and described nonwoven fabric base sheet material layers is fixed on described installed surface.
Preferably, described milling apparatus also includes magic tape, described magic tape includes circle wool fibre part and fishing without hook part, one in described round wool fibre part and described fishing without hook part is arranged on the installed surface of described installation pedestal, and the another one in described round wool fibre part and described fishing without hook part is arranged in described nonwoven fabric base sheet material layers.
When utilizing described abrasive article that workpiece is polished, need to apply pressure on abrasive article or workpiece to be polished so that the grinding layer surface of abrasive article and the intimate surface contact to be polished of workpiece.Owing to nonwoven fabric base sheet material layers has certain elasticity, therefore, when the grinding layer of the less workpiece of area with abrasive article provided by the utility model contacts with each other, nonwoven fabric base sheet material layers can buffer the active force that workpiece is applied on abrasive article.When treating the workpiece that polishing surface is cambered surface and polishing, the deformation of described abrasive article is sufficient for the laminating with cambered surface, and therefore, cambered surface workpiece can be polished by abrasive article provided by the utility model uniformly.
Simultaneously, owing to high-density non-woven fabrics substrate layer storage modulus under stretch mode and grinding layer storage modulus under stretch mode are closer to (much larger than sponge storage modulus under stretch mode), therefore, when treating the workpiece that polishing surface is plane and carrying out straight flange polishing, nonwoven fabric base sheet material layers and grinding layer can deform because of the interaction force between workpiece simultaneously, and grinding layer can't be directed away from the direction of workpiece and excessively arch upward.Therefore, when utilizing abrasive article provided by the utility model that flat work pieces is carried out elastic grinding, it is also possible to guarantee that grinding layer fits mutually with the surface of workpiece, such that it is able to reach uniform grinding effect.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, but is not intended that restriction of the present utility model together with detailed description below.In the accompanying drawings:
Fig. 1 is the schematic diagram of a kind of embodiment of abrasive article provided by the utility model；
Fig. 2 is the schematic diagram of the another kind of embodiment of abrasive article provided by the utility model；
Fig. 3 is the schematic diagram of milling apparatus provided by the utility model；
Fig. 4 is that highdensity non-woven fabrics vertically carries on the back basic unit and foam sponge stress-strain diagram comparison diagram under stretch mode along woven direction (TD), polyurethane along woven direction (MD), highdensity non-woven fabrics.
Description of reference numerals
100: grinding layer 110: ore in sand form layer
120: resin bed 130: basic unit carried on the back by polyurethane
200: tack coat 300: nonwoven fabric base sheet material layers
310: nonwoven layer 320: foam sponge layer
400: installation pedestal 410: lever
420: vibrating disk 510: circle wool fibre part
520: fishing without hook part
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains this utility model, it is not limited to this utility model.
As an aspect of the present utility model, as shown in Figure 1, it is provided that a kind of abrasive article, described abrasive article includes grinding layer 100, wherein, institute's abrasive article also includes nonwoven fabric base sheet material layers 300 and the tack coat 200 this nonwoven fabric base sheet material layers 300 and grinding layer 100 being bonded together.
Grinding layer 100 includes that basic unit 130 carried on the back by ore in sand form layer 110, resin bed 120 and polyurethane.Ore in sand form layer 110 is arranged on a surface of polyurethane back of the body basic unit 130 by planting sand, and is adhesively fixed by resin bed, and another surface of polyurethane back of the body basic unit 130 is connected with tack coat 200.
In this utility model, being not particularly limited the size of the ore grain on grinding layer 100, abrasive article provided by the utility model can make various model, for example it can be made to 50 mesh are to various models such as 5000 mesh.
In this utility model, by the way of electrostatic sand-planting, ore in sand form layer can be arranged on polyurethane and carry on the back in basic unit 130, and utilize resin bed to be adhesively fixed.It is easily understood that a part for the ore grain in ore in sand form layer is imbedded in resin bed 120, another part exposes, and is used for realizing grinding function.The concrete operation method of electrostatic sand-planting is to it is known in the art, to repeat no more here.
Nonwoven fabric base sheet material layers 300 and grinding layer 100 are bonded together by tack coat 200, and therefore, nonwoven fabric base sheet material layers 300 can not only be securely bonded together with grinding layer 100.Further, polyurethane is carried on the back basic unit 130 and is had preferable toughness, soft, can preferably be fitted on tack coat 200, and easily realize the common eigenvector with nonwoven fabric base sheet material layers 300, such that it is able to the surface to be polished with workpiece fits when polishing, improve the uniformity coefficient to grinding workpieces.In addition, polyurethane back of the body basic unit 130 also has higher intensity, it is not easy to damaged.
When utilizing described abrasive article that workpiece is polished, need to apply pressure on abrasive article or workpiece to be polished so that grinding layer 100 surface of abrasive article and the intimate surface contact to be polished of workpiece.Owing to nonwoven fabric base sheet material layers 300 has certain elasticity, therefore, when the grinding layer 100 of the less workpiece of area with abrasive article provided by the utility model contacts with each other, nonwoven fabric base sheet material layers 300 can buffer the active force that workpiece is applied on abrasive article.When treating the workpiece that polishing surface is cambered surface and polishing, the deformation of described abrasive article is sufficient for the laminating with cambered surface, and therefore, cambered surface workpiece can be polished by abrasive article provided by the utility model uniformly.
Simultaneously, due to high-density non-woven fabrics substrate layer storage modulus under stretch mode and grinding layer storage modulus under stretch mode closer to, therefore, when treating the workpiece that polishing surface is plane and polishing, nonwoven fabric base sheet material layers 300 and grinding layer 100 can deform because of the interaction force between workpiece simultaneously, and grinding layer 100 can't be directed away from the direction of workpiece and excessively arch upward.Therefore, when utilizing abrasive article provided by the utility model that flat work pieces is ground, it can be ensured that grinding layer 100 fits mutually with the surface of workpiece, such that it is able to reach uniform grinding effect.
In order to confirm above-mentioned conclusion, inventor of the present utility model has carried out extension test, to obtain the storage modulus under respective stress-strain diagram and stretch mode to highdensity non-woven fabrics, polyurethane back of the body basic unit and foam sponge.The equipment that this time test uses is the Dynamic Mechanical Analyzer DMAQ800 that TA company produces, and test condition is as follows:
Fixture: stretching clamp；
Pattern: DMA Stress Control (stress/strain)
Pre-applied force: 0.05N
Poisson's ratio: 0.44
Sample size: long 35mm, wide 5.53mm
Method: stress increases with the speed of 3.0N/min, until 18.0N.
Fig. 4 shows highdensity non-woven fabrics along woven direction (MD) stress-strain diagram under stretch mode, highdensity non-woven fabrics vertically along stress-strain diagram under stretch mode of woven direction (TD) stress-strain diagram under stretch mode, polyurethane back of the body basic unit and foam sponge stress-strain diagram under stretch mode.Table 1 shows highdensity non-woven fabrics along woven direction (MD) storage modulus under stretch mode, highdensity non-woven fabrics vertically along storage modulus under stretch mode of woven direction (TD) storage modulus under stretch mode, polyurethane back of the body basic unit and foam sponge storage modulus under stretch mode.
It is pointed out that highdensity non-woven fabrics herein refers to that density is at 100kg/m3To 200kg/m3Between non-woven fabrics.
Table 1
| Sample name | Storage modulus (MPa) |
| Highdensity non-woven fabrics (MD) | 16.2 |
| Highdensity non-woven fabrics (TD) | 15.9 |
| Polyurethane back of the body base | 13.9 |
| Foam sponge | 0.15 |
Can be confirmed by table 1, highdensity non-woven fabrics storage modulus under stretch mode and polyurethane back of the body base storage modulus under stretch mode more closely, and foam sponge at stretch mode under storage modulus and polyurethane carry on the back base at stretch mode under storage modulus differ greatly.
In some embodiments, it is preferable that described nonwoven fabric base sheet material layers 300 by density at 100kg/m3To 200kg/m3Between, storage modulus under stretch mode one or more layers nonwoven layer between 0.8MPa to 20MPa constitutes；Described polyurethane back of the body basic unit 130 is made up of the polyurethane between 5MPa to 20MPa of the storage modulus under stretch mode.
It is to say, nonwoven fabric base sheet material layers 300 can only include that one layer of density is at 100kg/m3To 200kg/m3Between, storage modulus nonwoven layer between 0.8MPa to 20MPa under stretch mode, or, nonwoven fabric base sheet material layers 300 can include multi-layer nonwoven fabrics stacked together, and the density of at least a part of which layer of non-woven fabric layer is at 100kg/m3To 200kg/m3Between, under stretch mode storage modulus between 0.8MPa to 20MPaMPa.In the later case, multi-layer nonwoven fabrics layer can be bonded together by binding agent, it is also possible to by pressure sintering, multi-layer nonwoven fabrics is bonded together.
Selectively, in other embodiments, described nonwoven fabric base sheet material layers 300 also can be formed by one or more layers nonwoven layer and fibrous layer or foaming sponge stacking, and the density of least one layer of nonwoven fabric base sheet material layers is arranged on 100kg/m3To 200kg/m3Between, under stretch mode, storage modulus is between 0.8MPa to 20MPaMPa.The present utility model people finds through overtesting, nonwoven fabric base sheet material layers 300 and the polyurethane with afore-mentioned characteristics are carried on the back basic unit 130 and can be combined well, under the effect of polishing external force, it is possible to form good contact with the surface of workpiece to be polished, it is achieved uniform grinding.Fibrous layer described herein can utilize the fiber different from the fiber making non-woven fabrics to make.Such as, described fibrous layer can be glass fibre, and the fiber making non-woven fabrics can be then polyester fiber.
In the embodiment shown in fig. 1, nonwoven fabric base sheet material layers 300 includes layer of non-woven fabric.In the embodiment shown in Figure 2, nonwoven fabric base sheet material layers 300 includes nonwoven layer 310, foam sponge layer 320 and the nonwoven layer 310 being cascading.It should be noted that when nonwoven fabric base sheet material layers 300 includes multilamellar, it should be ensured that be made up of non-woven fabrics with polyurethane back of the body basic unit 130 that layer material of being connected.In embodiment shown in fig. 2, nonwoven layer 310 is carried on the back basic unit 130 by tack coat 200 and polyurethane and is bonded together, to guarantee arching upward in the surface when will not excessively deviate from workpiece with grinding layer 100 when the workpiece polished contacts, foam sponge layer 320 is set then so that nonwoven fabric base sheet material layers 300 can elastic deformation, with with wait polish the surface absorption surface as cambered surface time, nonwoven fabric base sheet material layers 300 can be deformed into and fit with cambered surface.
Certainly, in this utility model, the detailed description of the invention of nonwoven fabric base sheet material layers 300 is not limited to this, as long as the density being able to ensure that in nonwoven fabric base sheet material layers 300 is arranged on 100kg/m3To 200kg/m3Between, storage modulus under stretch mode be between 0.8MPa to 20MPa.
It is pointed out that what kind of structure is the most described nonwoven fabric base sheet material layers have, one layer be connected with tack coat is nonwoven layer.In other words, adjacent with described tack coat in described nonwoven fabric base sheet material layers one layer is described nonwoven layer, and this nonwoven fabric base sheet material layers and described polyurethane are carried on the back basic unit and is bonded together through described tack coat.
In above-mentioned various embodiments, basic unit carried on the back by described polyurethane can be all that the polyurethane between 5MPa to 20MPa is constituted by the storage modulus under stretch mode.
In this utility model, thickness and material to tack coat 200 do not do concrete restriction, deform consistent as long as can be bonded in nonwoven fabric base sheet material layers 300 by grinding layer 100 and not affect nonwoven fabric base sheet material layers 300 with grinding layer 100.Preferably, the thickness of tack coat 200 can be between 0.03mm to 0.3mm.
When the storage modulus under nonwoven fabric base sheet material layers 300 is at stretch mode meets within the above range, i.e. box lunch is when the workpiece polished applies relatively noticeable effort to abrasive article, grinding layer 100 also will not excessively deviate from the surface of workpiece and arch upward, such that it is able to guarantee that most ores in sand form that the surface to be polished of workpiece is covered can contact with the surface to be polished of workpiece, and then ensure that the uniformity of polishing.
In addition, nonwoven fabric base sheet material layers 300 is made up of needle punched non-woven fabrics, compared with sponge, needle punched non-woven fabrics itself has enough intensity, therefore, when when the workpiece size polished is less (such as, relatively thin or sharper time), abrasive article described in the utility model also will not be excessive and damaged because of pressure.Therefore, when utilizing abrasive article provided by the utility model that workpiece is polished, it is possible to apply to hand over big active force on workpiece or abrasive article, to improve the efficiency ground.
Preferably, the thickness of grinding layer 100 is between 0.05mm to 0.2mm.When the thickness of grinding layer 100 is arranged within the above range, grinding layer both can have higher intensity, can have again preferable pliability, it is possible to be fitted in nonwoven fabric base sheet material layers 300, and deform with nonwoven fabric base sheet material layers 300.
In this utility model, the thickness of nonwoven fabric base sheet material layers 300 do not had special restriction, so that described grinding layer has higher intensity and relatively low cost, as a kind of preferred implementation of the present utility model, the thickness of nonwoven fabric base sheet material layers 300 is between 1.5mm to 5mm.
For the ease of described abrasive article being arranged on the installation pedestal of milling apparatus, preferably, described abrasive article also includes that connecting portion, described connecting portion are arranged on the surface deviating from described tack coat of described nonwoven fabric base sheet material layers, and is formed with round wool fibre or multiple barb on the surface of described connecting portion.Described barb can be made up of nylon material, it is also possible to is made up of polyester material.Connecting portion is a part for VELCRO, both can be with the round wool fibre part of VELCRO, it is also possible to be the fishing without hook part of VELCRO.Utilize VELCRO to be removably disposed on milling apparatus by abrasive article, be conducive to abrasive article is replaced.
As another aspect of the present utility model, it is provided that a kind of milling apparatus, described milling apparatus includes abrasive article, and wherein, described abrasive article is above-mentioned abrasive article provided by the utility model.
Utilizing includes when workpiece is polished by the milling apparatus of described abrasive article, it is possible to obtain effect of polishing uniformly.
For the ease of operation, as it is shown on figure 3, milling apparatus can also include installing pedestal 400, this installation pedestal 400 has installed surface, and described nonwoven fabric base sheet material layers is fixed on described installed surface.
For the ease of abrasive article is fixed on installed surface, it is preferable that described milling apparatus also includes magic tape 500.It is easily understood that, described adhesive tape button is also referred to as VELCRO, generally, magic tape 500 includes circle wool fibre part 510 and fishing without hook part 520, one in circle wool fibre part 510 and fishing without hook part 520 is arranged on the installed surface installing pedestal 400, and the another one in circle wool fibre part 510 and fishing without hook part 520 is arranged in described nonwoven fabric base sheet material layers.
It is formed with substantial amounts of round wool fibre on circle wool fibre part, the substantial amounts of barb being made up of terylene or nylon it is formed with on fishing without hook part, when circle wool fibre part fits with fishing without hook part, barb on fishing without hook part catches on round wool fibre, so that fishing without hook part 520 and circle wool fibre part 510 are bonded together, and abrasive article is fixed on installation pedestal 400.
Circle wool fibre part is also very easy to separate with fishing without hook part, consequently facilitating the abrasive article changed on milling apparatus.
Milling apparatus provided by the utility model both can be hand-ground equipment, it is also possible to be other automatic milling apparatus.As a kind of preferred implementation of the present utility model, installing pedestal 400 and can include lever 410 and be fixed on the vibrating disk 420 of lever 410 one end, described abrasive article is arranged on vibrating disk 420.
When grinding work-piece, there is up-down vibration in vibrating disk 420, such that it is able to be ground the surface of workpiece.
As a kind of detailed description of the invention of the present utility model, described installed surface can be rectangle or circle, and correspondingly, described abrasive article is also rectangle or circle.
Embodiment 1
The Al alloy parts that width is 7mm is polished by the abrasive article utilizing this utility model one embodiment to be provided, and wherein, the ore grain in the ore in sand form layer of abrasive article is 400 mesh, and the thickness of nonwoven fabric base sheet material layers is 2mm, and the thickness of grinding layer is 0.127mm.After 20 craft is back and forth polished, it is observed that the aluminum alloy surface after Da Mo is uniformly without miscellaneous line.Subsequently, utilizing optical profilometer NANOVEAST400 to detect the aluminum alloy surface after polishing, concrete testing result is shown in Table 1.
Embodiment 2
The Al alloy parts that width is 7mm is polished by the milling apparatus utilizing this utility model one embodiment to be provided, wherein, described milling apparatus includes lever and is fixed on the vibrating disk of lever one end, described abrasive article is arranged on vibrating disk, vibrated by pneumatic actuation vibrating disk, ore grain in the ore in sand form layer of abrasive article is 400 mesh, and the thickness of nonwoven fabric base sheet material layers is 2mm, and the thickness of grinding layer is 0.127mm.After 30 seconds polish, it is observed that the aluminum alloy surface after Da Mo is uniformly without miscellaneous line.Subsequently, utilizing optical profilometer NANOVEAST400 to detect the aluminum alloy surface after polishing, concrete testing result is shown in Table 1.
Comparative example
Utilize sand sponge that the Al alloy parts that width is 7mm is polished, wherein, described sand sponge includes sponge substrate and the grinding layer being bonded on sponge substrate by binding agent, and the ore grain in ore in sand form layer is 400 mesh, the thickness of sponge substrate is 5mm, and the thickness of ore in sand form layer is 0.127mm.After 20 craft is back and forth polished, it is observed that there is miscellaneous line in the aluminum alloy surface after Da Mo.Subsequently, utilizing optical profilometer NANOVEAST400 to detect the aluminum alloy surface after polishing, concrete testing result is shown in Table 1.
Table 1
| Sq | Ssk | SKU | Sp | Sv | Sz | Sa | |
| Embodiment 1 | 1.688 | -0.170 | 3.921 | 8.944 | 12.098 | 21.042 | 1.313 |
| Embodiment 2 | 1.277 | -0.972 | 7.293 | 4.569 | 11.771 | 16.341 | 0.952 |
| Comparative example | 2.463 | 0.219 | 2.818 | 13.348 | 19.230 | 32.579 | 2.002 |
By the contrast in table 1, the abrasive article polishing workpiece utilizing this utility model embodiment to be provided can obtain surface smooth, uniform.
It is understood that embodiment of above is merely to illustrate that principle of the present utility model and the illustrative embodiments that uses, but this utility model is not limited thereto.For those skilled in the art, in the case of without departing from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement are also considered as protection domain of the present utility model.
Claims (12)
1. an abrasive article, described abrasive article includes grinding layer, it is characterized in that, described abrasive article also includes nonwoven fabric base sheet material layers and the tack coat described nonwoven fabric base sheet material layers and described grinding layer being bonded together, described grinding layer includes that basic unit carried on the back by ore in sand form layer, resin bed and polyurethane, described ore in sand form layer is arranged on a surface of described polyurethane back of the body basic unit by planting sand, and is adhesively fixed by described resin bed, and another surface of described polyurethane back of the body basic unit is connected with described tack coat.
Abrasive article the most according to claim 1, it is characterised in that the thickness of described grinding layer is between 0.05mm to 0.2mm.
Abrasive article the most according to claim 1, it is characterised in that the thickness of described nonwoven fabric base sheet material layers is between 1.5mm to 5mm.
Abrasive article the most as claimed in any of claims 1 to 3, it is characterised in that described nonwoven fabric base sheet material layers includes at least one of which nonwoven layer.
Abrasive article the most according to claim 4, it is characterised in that adjacent with described tack coat in described nonwoven fabric base sheet material layers one layer is described nonwoven layer, this nonwoven fabric base sheet material layers and described polyurethane are carried on the back basic unit and are bonded together through described tack coat.
Abrasive article the most according to claim 4, it is characterised in that described nonwoven fabric base sheet material layers includes that at least one of which density is at 100kg/m3To 200kg/m3Between, nonwoven layer between 0.8MPa to 20MPa of storage modulus under stretch mode and at least one of which fibrous layer or foaming sponge layer, making described fibrolaminar fiber different from the fiber making described nonwoven layer, described nonwoven layer and described polyurethane are carried on the back basic unit and are bonded together through described tack coat；
Described polyurethane back of the body basic unit is made up of the polyurethane between 5MPa to 20MPa of the storage modulus under stretch mode.
Abrasive article the most according to claim 4, it is characterised in that described nonwoven fabric base sheet material layers by one layer of density at 100kg/m3To 200kg/m3Between, storage modulus under the stretch mode nonwoven layer between 0.8MPa to 20MPa makes；Or described nonwoven fabric base sheet material layers is formed by multi-layer nonwoven fabrics layer stackup, at least a part of which has layer of non-woven fabric layer to be that density is at 100kg/m3To 200kg/m3Between, storage modulus under the stretch mode nonwoven layer between 0.8MPa to 20MPa；
Basic unit carried on the back by described polyurethane is that the polyurethane between 5MPa to 20MPa is constituted by the storage modulus under stretch mode.
Abrasive article the most as claimed in any of claims 1 to 3, it is characterised in that the thickness of described tack coat is between 0.03mm to 0.3mm.
Abrasive article the most as claimed in any of claims 1 to 3, it is characterized in that, described abrasive article also includes that connecting portion, described connecting portion are arranged on the surface deviating from described tack coat of described nonwoven fabric base sheet material layers, and is formed with round wool fibre or multiple barb on the surface of described connecting portion.
10. a milling apparatus, described milling apparatus includes abrasive article, it is characterised in that described abrasive article is the abrasive article in claim 1 to 9 described in any one.
11. milling apparatus according to claim 10, it is characterised in that described milling apparatus also includes installing pedestal, and described installation pedestal has installed surface, and described nonwoven fabric base sheet material layers is fixed on described installed surface.
12. milling apparatus according to claim 11, it is characterized in that, described milling apparatus also includes magic tape, described magic tape includes circle wool fibre part and fishing without hook part, one in described round wool fibre part and described fishing without hook part is arranged on the installed surface of described installation pedestal, and the another one in described round wool fibre part and described fishing without hook part is arranged in described nonwoven fabric base sheet material layers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520785270.8U CN205415354U (en) | 2015-10-10 | 2015-10-10 | Grind piece and grinding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520785270.8U CN205415354U (en) | 2015-10-10 | 2015-10-10 | Grind piece and grinding device |
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| CN205415354U true CN205415354U (en) | 2016-08-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109290969A (en) * | 2017-07-24 | 2019-02-01 | 杭州祥生砂光机制造有限公司 | Abrasive material face changeable type abrasive belts and quick change method |
| CN109664210A (en) * | 2018-12-24 | 2019-04-23 | 湖北重泰研磨工具有限公司 | Technical grade sponge sand lump and its production method |
-
2015
- 2015-10-10 CN CN201520785270.8U patent/CN205415354U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109290969A (en) * | 2017-07-24 | 2019-02-01 | 杭州祥生砂光机制造有限公司 | Abrasive material face changeable type abrasive belts and quick change method |
| CN109664210A (en) * | 2018-12-24 | 2019-04-23 | 湖北重泰研磨工具有限公司 | Technical grade sponge sand lump and its production method |
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