CN101360585A - Grinding material feeding device - Google Patents
Grinding material feeding device Download PDFInfo
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- CN101360585A CN101360585A CNA2006800516926A CN200680051692A CN101360585A CN 101360585 A CN101360585 A CN 101360585A CN A2006800516926 A CNA2006800516926 A CN A2006800516926A CN 200680051692 A CN200680051692 A CN 200680051692A CN 101360585 A CN101360585 A CN 101360585A
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- grinding material
- mentioned
- supply pipe
- air supply
- grinding
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/013—Application of loose grinding agent as auxiliary tool during truing operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
- B28D7/02—Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work
Abstract
A dresser feeding device has an air supply source for supplying air; a dresser feeding air pipe connected at the base end to the air supply source; a dresser tank for holding dresser; a dresser feeding pipe for connection from the dresser tank to the dresser supply air pipe, the connection being made at a connection section having a smaller diameter than the dresser supply air pipe, the forward end of the dresser supply pipe being inserted and projected into the dresser supply air pipe and positioned spaced from the inner peripheral surface of the dresser supply air pipe; and an open/close valve installed in the dresser feeding air pipe between the connection part and the air supply source. The dresser feeding device feeds the powder-like dresser for dressing an abrasive grain layer to a grinding tool having the abrasive grain layer as a cutting blade tip.
Description
Technical field
The present invention relates to the grinding material feeding device that the grinding material is provided such as the such milling tool of hollow boring bit that has abrasive grain layer as cutting tip.
Background technology
When wall of the concrete structures built up etc. is holed, using such as front end to have the such milling tool of hollow boring bit that makes the abrasive grain layer of diamond abrasive grain be combined into binding agent as cutting tip at cylindric drill main body.When holing with this hollow boring bit, thereby the central shaft that makes drill main body center on above-mentioned cylinder makes when rotating in its incision concrete structures that advances, utilize the abrasive action limit that abrasive particle rose of cutting tip to dig and cut concrete edge, punching on concrete wall etc. the cut-outs such as reinforcing bar in the structures.
When holing with this hollow boring bit, the cooling with cutting tip of removing for the smear metal that realizes grinding generation, past, to be the limit supplied with the cooling waterside to cutting tip always holes, and still, the cooling water that might be supplied with and smear metal are mixed into muddy and discharge and pollute surrounding environment.For this reason, recently people begin to substitute the wet construction method of this use cooling water and adopt and supply with compressed air and carry out smear metal and remove and cool off and the smear metal dust of discharging is holed by the dry construction method that dust catcher reclaims.But then, this dry construction method exists that the above-mentioned abrasive grain layer that constitutes cutting tip can be stopped up immediately by the smear metal dust and abrasive action weakens, the problem that can't hole expeditiously.
For this reason, for example in patent documentation 1～3, provide such device: when holing with the dry construction method, intermittently supply on the cutting tip of hollow boring bit with suitable amount by will grind material (grinding-material) with compressed air, even if also the authigenesis of trim edges promotion as the abrasive particle of bite carried out to above-mentioned abrasive grain layer in the limit in boring procedure, make cutting tip keep sharpness and reach for this reason and the grinding material feeding device of use with the drilling equipment that improves drilling efficiency.In addition, inventors of the present invention also in patent documentation 4, proposed to have such grinding material feeding device drilling equipment and, the particle diameter that uses the surface to have silanol group as above-mentioned grinding material is the scheme of no silhydrite of the ultramicro powder of 5～50nm.
But in the grinding material feeding device that patent documentation 2～4 is wherein put down in writing, being used for keeping the jar of above-mentioned grinding material is to be connected to hollow boring bit via valve to supply with on the compressed-air actuated supply pipe.Therefore, to intermittently supply with and grind just open and close valve continually of material, and because what supplied with is quality and abrasive particle hard grinding material equally, thereby might take place to nip in the spool of valve and grind material and can't reliably open and close, perhaps valve is significantly impaired and can't supply with the phenomenon of grinding material very early.
And patent documentation 1 has also been put down in writing a kind of like this feedway, promptly, except the jar that will grind material as mentioned above is connected on the compressed-air actuated supply pipe via valve, this supply pipe is branched off into from the air supply pipe line of this valve towards the hollow boring bit side by triple valve type magnetic valve, and, be configured in the grinding material supply pipeline between this air supply pipe line and the above-mentioned valve, and will grind the material jar via T font discharge nozzle and be connected on this grinding material supply pipeline, be connected to the upper end of grinding the material jar from branching out arm between the discharge nozzle of this grinding material supply pipeline and the valve again.In this grinding material feeding device, compressed air from the air supply pipe line by the time do not supply with the grinding material, and when the switching by above-mentioned magnetic valve makes compressed air flow in the grinding material supply pipeline, its part flows into grinding material jar from above-mentioned arm makes jar interior pressure become identical with the pressure of discharge nozzle, to grind material with this and be discharged among the person in charge who grinds the material supply pipeline, and rely on the compressed air that is left that flows among this persons in charge and supply with to the hollow boring bit side.
But, in this grinding material feeding device, grinding being connected between material jar and the person in charge who grinds the material supply pipeline leans on simple T font discharge nozzle to carry out, when therefore, wanting magnetic valve switched at every turn from the discharge rate of grinding the grinding material that the material jar discharges to the person in charge who grinds the material supply pipeline, control exactly to the quantity delivered of the grinding material of hollow boring bit supply intermittently that to make it to be always a certain amount of be difficult at every turn.Therefore, if it is few to grind the quantity delivered of material, then abrasive grain layer might can't be repaired fully and cause cutting tip can not keep sharpness, otherwise, if quantity delivered is too much, then might exceed needs to the finishing that abrasive grain layer carries out and increase loss, cause the life-span of hollow boring bit significantly to shorten.
In addition, in this grinding material feeding device, be difficult to control, thereby also might cause grinding material discharge in a large number quickly from grind the material jar owing to grind the discharge rate of material as mentioned above.A large amount of in this wise grinding materials of discharging can form bridge joint and will be responsible for obstruction.Therefore, in this occasion, the supply of grinding material afterwards can't be carried out, thereby have to temporarily interrupt bore operation and the grinding material that will form bridge joint takes out, and the result causes operating efficiency significantly to reduce.
Patent documentation 1: special fair 8-18326 communique
Patent documentation 2: special fair 8-18327 communique
Patent documentation 3: specially permit communique No. 2549787
Patent documentation 4: the spy opens the 2002-370167 communique
Summary of the invention
The present invention creates under above-mentioned background, its objective is, provide a kind of carry out above-mentioned when holing such grinding of carrying out with milling tool with hollow boring bit, for intermittently supplying with the grinding material to its abrasive grain layer, can be more accurately and supply with the grinding material feeding device of a certain amount of grinding material reliably.
In order to solve above-mentioned problem and to reach above-mentioned purpose, the present invention is a kind of grinding material feeding device, to having the grinding material of supplying with powder shaped as the milling tool of the abrasive grain layer of cutting tip, wherein, has: air supply source, air supply; Grind material air supply pipe, cardinal extremity is connected on the above-mentioned air supply source; Grind the material jar, keep above-mentioned grinding material; Grind the material supply pipe, to couple together between above-mentioned grinding material jar and the above-mentioned grinding material air supply pipe, at the connecting portion place diameter that is connected with above-mentioned grinding material air supply pipe less than above-mentioned grinding material air supply pipe, the front end of described grinding material supply pipe inserts also and protrudes in the above-mentioned grinding material air supply pipe, and and the inner peripheral surface of above-mentioned grinding material air supply pipe between on the position of devices spaced apart; And open and close valve, supply with between the source at the connecting portion of above-mentioned grinding material air supply pipe and above-mentioned grinding material supply pipe and above-mentioned air and to be arranged on the above-mentioned grinding material air supply pipe.
In feedway of the present invention, can also have the control device that makes the intermittent switching of above-mentioned open and close valve.When open and close valve is opened, air is imported the grinding material air supply pipe from the air supply source, will supply with to the milling tool side with air via the grinding material that above-mentioned grinding material supply pipe supplies in this grinding material air supply pipe from grinding the material jar.At this moment, because it is upstream side that open and close valve is arranged on compared with more supplying with source by air with the connecting portion that supply has the grinding material supply pipe of grinding material to be connected on grinding material air supply pipe, therefore, can not grind the phenomenon that material passes through from this open and close valve, not have yet and grind material and nip and wait and therefore damage the situation generation of open and close valve.
Then,, just the grinding material of powder shaped is supplied with via grinding the material supply pipe from above-mentioned grinding material jar, made it in the connecting portion place that is connected with this grinding material supply pipe is maintained at grinding material air supply pipe in case open and close valve is closed.At this moment, in the present invention, because the diameter of above-mentioned grinding material supply pipe is less than grinding material air supply pipe, and its front end and grind devices spaced apart between the inner peripheral surface of material air supply pipe and insert and protrude in and grind in the material air supply pipe, therefore, grind material will with and the corresponding cone angle of its angle of stability form circular cone grinding between material supply pipe front end and the grinding material air supply pipe inner peripheral surface.
The circular cone of Xing Chenging keeps stable with the state that forms bridge joint, thereby the phenomenon above a large amount of grinding materials of this circular cone volume can not take place to supply with quickly between the inner peripheral surface of front end that grinds the material supply pipe and grinding material air supply pipe like this.Therefore, be designed to make that by grinding material supply pipe front end and grinding above-mentioned interval between the material air supply pipe inner peripheral surface grinding material amount of formed above-mentioned circular cone therebetween is suitable with a quantity delivered of the grinding material that will supply with to the milling tool side, can exactly a certain amount of grinding material be supplied with in grinding material air supply pipe all the time.
On the other hand, grinding material supply pipe by making minor diameter is inserted logical and is protruded in and grinds in the material air supply pipe, for this grinding material supply pipe and the two connecting portion that is connected of grinding material air supply pipe, even in above-mentioned grinding material air supply pipe, supply with to grind material and formed above-mentioned circular cone, also can between the outer peripheral face of this inner peripheral surface that grinds material air supply pipe and grinding material supply pipe, form clearance portion.And the area of this clearance portion is littler than the area of section of the inside of grinding material air supply pipe.Therefore, when next above-mentioned open and close valve being opened, be imported into the air that grinds in the material air supply pipe from above-mentioned connecting portion by the time can wash away being the conical grinding material that forms, accelerate to grind the material winding because of flow velocity when perhaps the above-mentioned clearance portion less, passing, thereby supply to the milling tool side with this grinding material from area.
As mentioned above, according to grinding material feeding device of the present invention, intermittence by open and close valve opens and closes, and a certain amount of grinding material can be supplied to exactly to grind in the material air supply pipe, supplies with to the milling tool side reliably but also can should grind material by air.Therefore, can repair and avoid taking place surpassing the loss that needs reliably to the abrasive grain layer of the cutting tip that forms hollow boring bit and so on milling tool, and can when keeping its sharpness, grind, thus, can seek the prolongation of life tools and seeking with stable efficient grinding operation such as hole.
Here, the interval between the inner peripheral surface of the front end of above-mentioned grinding material supply pipe and above-mentioned grinding material air supply pipe also can be designed to adjustable.In this occasion,, also can above-mentioned interval be adjusted, thereby intermittently supply with the grinding material with a quantity delivered of the best all the time according to situation of change even various conditions change when grinding operation such as holing with hollow boring bit.
In addition, also can have the zone air supply pipe that couple together, that have pressure-control valve between the front end of the zone between the above-mentioned open and close valve of above-mentioned grinding material air supply pipe and the air supply source and above-mentioned connecting portion and above-mentioned milling tool side.If reduce pressure with the pressure of above-mentioned pressure-control valve in advance, then when open and close valve is opened, be imported into the pressure that grinds the air in the material air supply pipe and will be higher than air supply pipe flow air in above-mentioned air supply pipe.Therefore, can the two be supplied with to milling tool via air supply pipe reliably at the connecting portion of milling tool side from above-mentioned grinding material air supply pipe and air supply pipe with the grinding material that is fed into above-mentioned connecting portion place.
Have again, in the occasion that has connected air supply pipe as mentioned above, can also connect make between above-mentioned grinding material air supply pipe and the above-mentioned connecting portion and above-mentioned front end that above-mentioned grinding material supply pipe is connected, with the grinding material jar tube connector of the internal communication of, above-mentioned grinding material jar.When above-mentioned open and close valve is closed, the pressure of flow air will become to be higher than and grind material air supply pipe moment in air supply pipe, and this pressure-air flows into the grinding material air supply pipe from the connecting portion of the milling tool side of two pipes.And, flow into the air that grinds the material air supply pipe from air supply pipe in the occasion that is being connected with grinding material jar tube connector, and be imported in the grinding material jar from grinding material jar tube connector, impact by pneumatic hammer effect generation for being maintained at the grinding material that grinds in the material jar.Therefore, so even since above-mentioned grinding material supply pipe as mentioned above the little grinding of diameter material in this grinding material supply pipe, formed bridge joint, also can this bridge joint be washed away by the impact that above-mentioned pneumatic hammer effect is produced, and can will grind material by the pressure that is imported into the above-mentioned air in the grinding material jar and push out, supply with the grinding material of appropriate amount to grinding material air supply pipe reliably at every turn.
As described above, according to the present invention, can be reliably and will to be a certain amount of grinding material exactly supply with to the milling tool side is intermittent at every turn.Therefore, grinding such as can when the abrasive grain layer of the cutting tip that forms the first-class milling tool of core drill being repaired and avoid loss to surpass needs, hole.Therefore, can the limit make cutting tip keep the sharpness limit and grind, thereby can seek the prolongation of life tools and seek stable and high efficiency grinding.
Description of drawings
Fig. 1 is the summary pie graph of expression an embodiment of the invention.
Fig. 2 is the grinding material air supply pipe of presentation graphs 1 illustrated embodiment and the figure of air supply pipe.
Fig. 3 is the partial sectional view of the connecting portion of presentation graphs 1 illustrated embodiment.
Fig. 4 is figure connecting portion, when the extension of grinding material air supply pipe is provided with direction and observes of embodiment shown in Figure 1.
Description of reference numerals
1 grinds the material jar
2 air compressors (air supply source)
3 grind material air supply pipe
3A～3D pipe joint
4 air supply pipes
4A ball valve (pressure-control valve)
6 grind the material supply pipe
The 6A coupling components
The 6B tube body
7 magnetic valves (open and close valve)
8 control device
9 grind material jar tube connector
10 boring bar tools (milling tool)
A～C connecting portion
E grinds material
The S grinding material feeding device
The specific embodiment
Fig. 1 to Fig. 4 is the figure of expression an embodiment of the invention.As shown in Figure 1, the grinding material feeding device S of present embodiment have the grinding material E that is used for keeping powder shaped grinding material jar 1, be connected to the milling tool side as the air compressor 2 of air supply source, from this air compressor 2 grinding material air supply pipe 3, two ends respectively with above-mentioned air compressor 2 sides of this grinding material air supply pipe 3 and milling tool side connecting portion A, B be connected and with grind the air supply pipe 4 that material air supply pipe 3 extend side by side, they are installed on the packaged type framework 5 and become one.In addition, grinding the connecting portion C place of material air supply pipe 3 between above-mentioned connecting portion A, B links to each other with grinding material jar 1 via grinding material supply pipe 6.
Above-mentioned grinding material air supply pipe 3 as shown in Figure 2, straight tube of being made by steel pipe etc. or connector and tee union 3A～3D are connected, horizontally set and be provided with on the direction in the extension that level is a linearity extends as a whole.At above-mentioned connecting portion A, C place, the straight-tube portion that the linearity of pipe joint 3A, 3C extends carries in above-mentioned extension direction is set.At connecting portion B place, the vertically extending component from the above-mentioned straight-tube portion of pipe joint 3B carries in above-mentioned extension direction is set.The pipe joint 3C at connecting portion C place particularly, its above-mentioned component is vertical upwards.Between connecting portion B, the C tee union 3D has been installed also and has constituted connecting portion D.The pipe joint 3D at this connecting portion D place connects into its straight-tube portion too and carries in above-mentioned extension and direction is set and component is vertical upwards.
Between the connecting portion A, the C that grind material air supply pipe 3, promptly more rely on the part of milling tool side, magnetic valve 7 has been installed as the open and close valve of present embodiment compared with connecting portion A with air supply pipe 4.Magnetic valve 7 is under the control of the control device shown in Figure 18 with timer etc., with pre-set time interval intermittently and moment property ground open and close, be controlled so as to and repeat and will import operation of grinding the material air supply pipe 3 and the operation that suppresses this importing from above-mentioned connecting portion A from the part of air that air compressor 2 is supplied with.
Air supply pipe 4 extends out and is connected on the straight-tube portion of pipe joint 3B at connecting portion B place from the component of the pipe joint 3A of above-mentioned connecting portion A, will always supply with to the milling tool side from the air that air compressor 2 is supplied with.Wherein, between above-mentioned connecting portion A, the B of this air supply pipe 4, ball valve 4A has been installed as the pressure-control valve in the present embodiment.The pressure of the air of supplying with to the milling tool side for passing through air supply pipe 4 can reduce pressure by this ball valve 4A.
At the two the connecting portion A place of air compressor 2 sides of air supply pipe 4 and above-mentioned grinding material air supply pipe 3, the above-mentioned component of its pipe joint 3A can not make progress yet.Air supply pipe 4 with grind material air supply pipe 3 the two the milling tool side connecting portion B place too, the straight-tube portion of the connection air supply pipe 4 of its pipe joint 3B can not be towards vertical direction also.Pipe joint 3A, 3B are provided with the perpendicular horizontal direction of direction towards the extension with above-mentioned grinding material air supply pipe 3 in the present embodiment.Air supply pipe 4, as long as can fully tolerate the pressure of the air of being supplied with, its part also can be the such flexible pipe of nylon pressure pipe 4B shown in Figure 2.
Above-mentioned grinding material jar 1, bottom are that conical funnel shape and top are cylindrical shape.The upper end of above-mentioned grinding material jar 1 is provided with the input port of grinding material E, but this input port tegmentum 1A seals airtightly.Drop into from this input port and remain on the grinding material E that grinds the material jar 1, the particle diameter that the surface of preferably using aforementioned patent document 4 for example to be put down in writing has silanol group is the no silhydrite of the ultramicro powder of 5～50nm.
Be maintained at the ratio of the upper end side of grinding material jar 1 and grind on the position that the grinding material in the material jar 1 more leans on, be connected with and remain an end that has the grinding material jar tube connector 9 that the material of flexible and resistance to pressure makes by above-mentioned nylon pressure pipe etc.The other end that grinds material jar tube connector 9 is attached on the component of pipe joint 3D at above-mentioned connecting portion D place, thus the grinding material supply pipe 6 that extends than self-grind material jar 1 with grind the two connecting portion C of material air supply pipe 3 and more rely on the milling tool side and be connected on the grinding material air supply pipe 3.
Vertical extending downwards ground material jar supply pipe 1B from the lower end of the conical funnel shape bottom of above-mentioned grinding material jar 1, and its lower end disposes opposed to each other with the upper end devices spaced apart of the vertical component that makes progress of the tee union 3C at above-mentioned connecting portion C place is coaxial.Above-mentioned grinding material supply pipe 6 is installed between the pipe joint 3C of above-mentioned grinding material jar supply pipe 1B and above-mentioned connecting portion C, will grind material jar 1 and couple together with grinding material air supply pipe 3.
Grind material supply pipe 6 as shown in Figure 3, be formed with on the periphery by the both ends of axle line direction therein outer screw section and with the periphery of the central part between this outer screw section as nut portions, be formed with the coupling components 6A of the rounded through hole in cross section in inside and embed the tube body 6B that for example makes that installs in the above-mentioned through hole of this coupling components 6A along above-mentioned axis and constitute by cylindrical shape straight tubes such as steel pipes.Tube body 6B, the certain external diameter of its internal diameter be also less than grinding material air supply pipe 3, more particularly, and less than the internal diameter of the pipe joint 3C at above-mentioned connecting portion C place.The above-mentioned outer screw section pitch each other at coupling components 6A two ends is identical and the hand of spiral is identical.
This grinding material supply pipe 6 is that above-mentioned outer screw section with coupling components 6A two ends is screwed in respectively in the formed negative thread of going up in interior week of the above-mentioned component of the pipe joint 3C that goes up formed negative thread portion and connecting portion C place in the bottom of the grinding material jar supply pipe 1B week portion and is installed between these grinding material jar supply pipe 1B and the pipe joint 3C.Therefore, grind the interior perimembranous of the aforementioned tube main body 6B of material supply pipe 6 via this, the inside of the inside of above-mentioned grinding material supply pipe 6 and grinding material jar 1 is communicated with airtightly with the inside that material air supply pipe 3 is promptly ground in the inside of the pipe joint 3C of connecting portion C.
Be connected the upper end of grinding the grinding material supply pipe 6 on the material jar supply pipe 1B, the two upper surface of coupling components 6A and tube body 6B is each other on same, and in the bottom that is connected on the pipe joint 3C of connecting portion C, tube body 6B protrudes in the lower surface of coupling components 6A and is inserted in the pipe joint 3C, its front end (lower end) be positioned at and the inner peripheral surface (inner bottom surface) of pipe joint 3C between be separated by interval G very little the position on.For interval G, above-mentioned outer screw section that can be by regulating coupling components 6A two ends makes and grinds material supply pipe 6 and advance and retreat up and down and adjust in the position that is screwed into of grinding in the above-mentioned negative thread portion of material jar supply pipe 1B and pipe joint 3C.
Supply with the milling tool that grinds material E by the feedway that as above constitutes, for example be the boring bar tool 10 of hollow boring bit of locating to punch at wall W of concrete structures etc. and so in the present embodiment as shown in Figure 1, this boring bar tool 10 is on the front-end edge of tool body 11 cylindraceous, interval spaced apart in the circumferential direction is equipped with a plurality of cutting tips 12 that formed by abrasive grain layer, and described abrasive grain layer is to utilize suitable binding agent to make the abrasive particle be combined into of the such hard of diamond abrasive grain.This boring bar tool 10, the rearward end of tool body 11 is installed on the rotating shaft of drilling equipment 13, by the limit around axis rotation limit on this axis direction with drilling equipment 13 before and then cutting tip 12 is cut among the wall W, thus, at the columniform core of interior week reservation of tool body 11, the abrasive action by above-mentioned abrasive grain layer punches on wall W simultaneously.
Has change 13A on above-mentioned drilling equipment 13 and installation portion tool body 11.Change 13A is connected to the above-mentioned connecting portion B of ratio of the air supply pipe 4 that is arranged on grinding material feeding device S more by on the end of milling tool side by air hose 14.On the other hand, on the part of holing on the wall W, be provided with the outer cover 15 that the peripheral closure of the tool body 11 of the boring bar tool 10 that cutting tip 12 is cut is got up.Outer cover 15 by dust collection hose 16 via being connected on the aspirator 18 such as dust catchers such as cyclone dust collectors 17.
In the air that will supply with from grinding material feeding device S and the interior perimembranous of grinding material E that mix with this air, supply to the grinding part that grinds with cutting tip 12 from the gap between tool body 11 and the above-mentioned core via above-mentioned change 13A import tool main body 11.This grinding part is cooled off by air, and the abrasive grain layer of cutting tip 12 obtains finishing by grinding material E.Grinding material E after like this abrasive grain layer being repaired and finishing bits, the abrasive particle that comes off and cutting tip 12 grind and the cutting powder that produces, follow the air that is subjected to aspirator 18 suctions to be discharged in the outer cover 15, and then in the process that this air is sucked by air hose 14, caught by dust catcher 17.
In the feedway of the grinding material E of above-mentioned formation, in that air compressor 2 is driven shown in the dotted line of Fig. 2 all the time to the 4 air fed whiles of air supply pipe, magnetic valve 7 intermittences and moment property ground is opened and closed.So, when magnetic valve 7 is opened, shown in the line of the single-point of Fig. 2, part of air imported and grind in the material air supply pipe 3, the grinding material E that supplies among the connecting portion C of this grinding material air supply pipe 3 is carried to boring bar tool (milling tool) 10 sides with air.Because magnetic valve 7 is arranged on than above-mentioned connecting portion C and more relies on air compressor 2 sides as the air supply source, thereby can not grind nip situation in the magnetic valve 7 of material E, can prevent that magnetic valve 7 is impaired and enable to carry out steadily in the long term opening and closing operations.
When above-mentioned magnetic valve 7 cuts out, will supply with grinding material E via grinding the connecting portion C of material supply pipe 6 from grinding material jar 1 to above-mentioned grinding material air supply pipe 3.At this moment, in above-mentioned feedway, because the diameter that is inserted into the tube body 6B that grinds the grinding material supply pipe 6 in the material air supply pipe 3 at connecting portion C place is less than grinding material air supply pipe 3, and separate very little interval G between the inner peripheral surface of its front end and grinding material air supply pipe 3, therefore, the grinding material E of the powder shaped of being supplied with will and grind between material air supply pipe 3 inner peripheral surfaces at this tube body 6B and form bridge joint, supplying with when grinding material E to grinding material air supply pipe 3 at every turn, stably form by as shown in Figure 3 with the corresponding cone angle of angle of stability have at above-mentioned front end the summit constant volume be the circular cone that a certain amount of grinding material E forms.
The tube body 6B that grinds the minor diameter of material supply pipe 6 inserts and protrudes in and grinds in the material air supply pipe 3.Therefore, even supplied with grinding material E, from the above-mentioned extension of grinding material air supply pipe 3 direction is set and sees over, protruding in the periphery of grinding the tube body 6B in the material air supply pipe 3, will be as shown in Figure 4 and the inner peripheral surface of grinding material air supply pipe 3 between form clearance portion F all the time.Therefore, can not grind material E and stop up the situation of grinding material air supply pipe 3.And, because the area of this clearance portion F is less than the area of section that grinds material air supply pipe 3, thereby opens and be imported into the air that grinds in the material air supply pipe 3 when this connecting portion C passes through at magnetic valve 7, its flow velocity will be accelerated.Therefore, above-mentioned circular cone and the winding that can wash away the grinding material E that is supplied with play grinding material E, thereby it is supplied with to the milling tool side reliably with air.
According to the feedway of aforesaid grinding material E, a certain amount of grinding material E accurately and reliably intermittently can be supplied with to the first-class milling tool of core drill.Thus, grinding operation such as can under can the be not enough situation of the abrasive grain layer that forms cutting tip, hole by overfinish or finishing.Therefore, can the limit make this cutting tip remain good sharpness limit and carry out operation, but also it is owing to utilize the air supplied with all the time to cutting tip with grinding part cools off and with discharges such as smear metals, thereby stable and under the situation that can prolong in the implementation tool life-span expeditiously so that the little dry construction method of the pollution of surrounding environment is ground.
In the feedway of above-mentioned embodiment, the aforementioned tube main body 6B that grinds material supply pipe 6 is installed in to be screwed in and grinds material jar supply pipe 1B and grind on the coupling components 6A on the pipe joint 3C of connecting portion C of material air supply pipe 3, make it advance and retreat by the amount of being screwed into of this coupling components 6A is regulated, thereby can adjust above-mentioned interval G.Therefore, even if grinding conditions such as the kind of grinding material E, the external diameter of hollow boring bit and rotary speed change, also can change and to grind material E with appropriate quantity delivered and intermittently supply with, can stably carry out high efficiency grinding operation and have nothing to do with above-mentioned grinding condition etc. to the milling tool side according to this.
For example, at the internal diameter that grinds material air supply pipe 3 is 11mm, the external diameter that grinds the tube body 6B of material supply pipe 6 is that 6mm, internal diameter are 4mm, the above-mentioned ultramicro powder of #60 left and right sides granularity there is not silhydrite as grinding the occasion that material E uses, above-mentioned clearance G is adjusted into 3.5mm, at the front end of tube body 6B and grind between the inner peripheral surface of material air supply pipe 3 (pipe joint 3C), discharge the grinding material E of about 2 grams and form above-mentioned circular cone from grinding material supply pipe 6 as each intermittent quantity delivered of supplying with.
In the present embodiment, because air supply pipe 4 is connected between connecting portion A, the B of air compressor 2 sides of grinding material air supply pipe 3 and milling tool side, and air is supplied with to the milling tool side all the time, even thereby also can carry out the discharge of the cooling of cutting tip 12 and smear metal etc. reliably when magnetic valve 7 cuts out.On air supply pipe 4, be provided with ball valve 4A as pressure-control valve.By with ball valve 4A the pressure of flow air in air supply pipe being reduced pressure in advance, when magnetic valve 7 is opened, can make to be imported into and grind material air supply pipe 3 and with grinding the pressure of air that material E arrives the connecting portion B place of the milling tool side that is connected with air supply pipe 4 is higher than the air that flows through from air supply pipe 4 pressure.Therefore, the grinding material E that supplies to above-mentioned connecting portion C place can be offered milling tool from the connecting portion B of milling tool side reliably via air supply pipe 4 and above-mentioned air hose 14.
And when magnetic valve 7 cuts out, air to the supply of grinding material air supply pipe 3 be closed and air supply pipe 4 in pressure moment of flow air become high pressure, this pressure-air flows into the grinding material air supply pipe 3 from the connecting portion B of milling tool side.And in the present embodiment, this connecting portion B and with the connecting portion D place of grinding between the connecting portion C that material supply pipe 6 is connected, be connected on the grinding material air supply pipe 3 with the grinding material jar tube connector 9 of the internal communication of grinding material jar 1.Therefore, flowing into the above-mentioned pressure-air that grinds material air supply pipe 3 will be imported into the grinding material jar 1 from this grinding material jar tube connector 9 shown in the dotted line of Fig. 2, apply the impact that produces because of the pneumatic hammer effect to being maintained at the grinding material E that grinds in the material jar 1.
Therefore, even it is little to grind the diameter of tube body 6B of material supply pipe 6 as mentioned above, grinding material E portion within it forms bridge joint and is easy to produce obstruction, according to present embodiment, when magnetic valve 7 cuts out, still can the bridge joint in the tube body 6B be washed away, and will grind material E by the pressure that imports the air in the grinding material jar 1 and extrude by above-mentioned impact, grinding material E with appropriate amount supplies with grinding material air supply pipe 3 more reliably, and then intermittently supplies with to the milling tool side.
More than be illustrated with regard to the preferred embodiments of the present invention, but the present invention is not subjected to the qualification of these embodiment.In the scope that does not exceed main idea of the present invention, can carry out increase, omission, replacement and other change of its formation.The present invention is not subjected to the qualification of above-mentioned explanation, and only is subjected to the qualification of claims.
Utilizability on the industry
According to the present invention, can be reliably and accurately at every turn with a certain amount of grinding material intermittently Supply with to the milling tool side, can the limit abrasive grain layer of the cutting blade that forms this milling tool be made Loss do not exceed needs ground and carry out trim edges and grind. Therefore, the instrument longevity can sought To make the cutting blade keep the sharpness limit stable and grind expeditiously on the limit in the time of the prolongation of life Mill. In addition, as milling tool, core section limit holes except as mentioned above limit forms Outside the such boring instrument 10 of hollow drill bit, the present invention can also be applied to, with dry construction Method is used such as is not formed this kind core section and the boring instrument of holing, and perhaps, is used for cutting The grinding wheel of disconnected concrete structures etc., fret saw etc. have its of abrasive grain layer as the cutting blade The occasion of its kind milling tool.
Claims (6)
1. the grinding material feeding device of a milling tool to having the grinding material of supplying with powder shaped as the milling tool of the abrasive grain layer of cutting tip, is characterized in that,
Have:
The air supply source, air supply;
Grind material air supply pipe, cardinal extremity is connected on the above-mentioned air supply source;
Grind the material jar, keep above-mentioned grinding material;
Grind the material supply pipe, to couple together between above-mentioned grinding material jar and the above-mentioned grinding material air supply pipe, at the connecting portion place diameter that is connected with above-mentioned grinding material air supply pipe less than above-mentioned grinding material air supply pipe, the front end of described grinding material supply pipe inserts also and protrudes in the above-mentioned grinding material air supply pipe, and and the inner peripheral surface of above-mentioned grinding material air supply pipe between on the position of devices spaced apart; And
Open and close valve is supplied with between the source at the connecting portion of above-mentioned grinding material air supply pipe and above-mentioned grinding material supply pipe and above-mentioned air and to be arranged on the above-mentioned grinding material air supply pipe.
2. grinding material feeding device as claimed in claim 1 is characterized in that, has the control device that above-mentioned open and close valve is is intermittently opened and closed.
3. grinding material feeding device as claimed in claim 1 is characterized in that, the above-mentioned interval between the inner peripheral surface of the above-mentioned front end of above-mentioned grinding material supply pipe and above-mentioned grinding material air supply pipe is adjustable.
4. grinding material feeding device as claimed in claim 1, it is characterized in that having with the zone air supply pipe that couple together, that have pressure-control valve between the front end of the zone between the above-mentioned open and close valve of above-mentioned grinding material air supply pipe and the above-mentioned air supply source and above-mentioned connecting portion and above-mentioned milling tool side.
5. grinding material feeding device as claimed in claim 4, it is characterized in that, be connected with make between above-mentioned grinding material air supply pipe and the above-mentioned connecting portion and above-mentioned front end that above-mentioned grinding material supply pipe is connected, with the grinding material jar tube connector of the internal communication of, above-mentioned grinding material jar.
6. grinding material feeding device as claimed in claim 5, it is characterized in that, the downstream connecting portion of above-mentioned grinding material air supply pipe and above-mentioned air supply pipe, the connecting portion that is positioned at than above-mentioned grinding material jar tube connector and above-mentioned grinding material air supply pipe more leans on the position in downstream.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2006/303309 WO2007096973A1 (en) | 2006-02-23 | 2006-02-23 | Dresser feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101360585A true CN101360585A (en) | 2009-02-04 |
Family
ID=38437035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800516926A Pending CN101360585A (en) | 2006-02-23 | 2006-02-23 | Grinding material feeding device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20090264057A1 (en) |
| EP (1) | EP1987918A1 (en) |
| JP (1) | JPWO2007096973A1 (en) |
| CN (1) | CN101360585A (en) |
| WO (1) | WO2007096973A1 (en) |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5141757B2 (en) * | 1972-11-09 | 1976-11-11 | ||
| JPS5852059Y2 (en) * | 1978-03-11 | 1983-11-28 | 厚地鉄工株式会社 | Merging pipe for pressurized air flow and granules |
| JPS5974822A (en) * | 1982-10-15 | 1984-04-27 | Sumitomo Metal Ind Ltd | Powdered material supplying method |
| JPH0818326B2 (en) * | 1991-10-17 | 1996-02-28 | ラサ工業株式会社 | Core drill equipment |
| JP2549787B2 (en) | 1991-12-17 | 1996-10-30 | ラサ工業株式会社 | Core drill |
| JP2545751Y2 (en) * | 1992-04-30 | 1997-08-27 | 新東工業株式会社 | Air-blast equipment |
| JPH0818327A (en) | 1994-06-28 | 1996-01-19 | Sony Corp | Production of small-sized antenna |
| JP3113510B2 (en) | 1994-06-29 | 2000-12-04 | ケイディディ株式会社 | Elliptical beam antenna device |
| JP3290103B2 (en) * | 1997-06-11 | 2002-06-10 | 株式会社アライドマテリアル | Core bit |
| US6425804B1 (en) * | 2000-03-21 | 2002-07-30 | Hewlett-Packard Company | Pressurized delivery system for abrasive particulate material |
| JP4053297B2 (en) * | 2001-04-11 | 2008-02-27 | 三菱マテリアル株式会社 | Grinding material and drilling method using the same |
| JP3983997B2 (en) * | 2001-04-26 | 2007-09-26 | 株式会社マキタ | Marnoco |
| US20030224704A1 (en) * | 2002-05-28 | 2003-12-04 | James Shank | Rotary media valve |
| US7101266B2 (en) * | 2002-07-23 | 2006-09-05 | Oleg Ivanovich Grechishkin | Abrasive blasting device |
| US6739950B1 (en) * | 2002-12-09 | 2004-05-25 | Joerg Kruse | Pipe renovating system and method |
| US7044831B2 (en) * | 2004-03-10 | 2006-05-16 | The Boeing Company | Multi-port sandblasting manifold and method |
| DE502004008271D1 (en) * | 2004-07-22 | 2008-11-27 | Fisba Optik Ag | Method for grinding and / or polishing surfaces |
| CA2586617C (en) * | 2004-11-19 | 2014-07-08 | Mitton Valve Technology Inc. | Rotary valve for industrial fluid flow control |
| US7549911B2 (en) * | 2007-02-12 | 2009-06-23 | Axxiom Manufacturing, Inc. | Media control valve with pressure balance loop |
| JP5145016B2 (en) * | 2007-11-19 | 2013-02-13 | 株式会社不二製作所 | Blasting method and blasting apparatus |
| US8092275B2 (en) * | 2009-02-14 | 2012-01-10 | Phuong Taylor Nguyen | Abrasive air blast system with air cooler for blast nozzle and air dryer for storage tank |
-
2006
- 2006-02-23 EP EP06714449A patent/EP1987918A1/en not_active Withdrawn
- 2006-02-23 CN CNA2006800516926A patent/CN101360585A/en active Pending
- 2006-02-23 JP JP2008501530A patent/JPWO2007096973A1/en not_active Withdrawn
- 2006-02-23 US US12/279,877 patent/US20090264057A1/en not_active Abandoned
- 2006-02-23 WO PCT/JP2006/303309 patent/WO2007096973A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2007096973A1 (en) | 2009-07-09 |
| EP1987918A1 (en) | 2008-11-05 |
| WO2007096973A1 (en) | 2007-08-30 |
| US20090264057A1 (en) | 2009-10-22 |
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Open date: 20090204 |