JP4218790B2 - Chip recovery device in continuous water cutting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a chip recovery device in a continuous water cutting device that covers a fluid pipe with a sealed housing and cuts the fluid pipe with a cylindrical cutter in a continuous water state.
[0002]
[Prior art]
FIG. 7 is a cross-sectional view showing a chip discharging means in a continuous water cutting device that cuts a conventional fluid pipe in a sealed state. A sealing housing 01 and an auxiliary pipe portion 02 covering the water supply main pipe P are projected in the vertical direction. A part of the water supply main pipe P is formed by lowering the perforating machine 05 having the cylindrical cutter C along the perforating cylinder part 03, which includes the perforated cylinder part 03 provided and the branching cylinder part 04 connected to the branch pipe T. Is cut as a cutting piece R. Then, chips generated during cutting are accumulated below the perforated cylinder portion 03, and these chips can be discharged to the outside through the drain pipe 07 by opening the water stop valve 06.
[0003]
[Problems to be solved by the invention]
However, such a conventional chip recovery means is not only costly in order to provide a drain pipe 07 and a water stop valve 06 for chip recovery, but also stops at the timing of draining after cutting. It took time and effort to open and close the water valve 06. In addition, since the fluid is discharged by the fluid flow, there is a problem that light ones of the chips accumulated below the perforated tube portion 03 are soared and separated.
[0004]
The present invention has been made in view of the above problems, and provides a chip collecting device in a continuous water cutting apparatus that can reliably and easily take out chips captured during cutting without being separated at the end of cutting. The purpose is to do.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the chip collecting device in the continuous water cutting device of the present invention is a cutting device in a continuous water cutting device that covers a fluid pipe with a sealed housing and cuts the fluid pipe with a cylindrical cutter in a continuous water state. A waste collection device,
The cylindrical cutter is inserted in close proximity to the inner periphery of the cutting edge, and is placed stationary in a substantially horizontal direction with respect to the bottom surface of the sealed housing, and a through hole is formed in the bottom plate. A swarf tray with a mesh wire mesh through which swarf cannot pass;
During the fluid pipe cutting, it is accommodated in a groove formed on the cylindrical inner surface of the cylindrical cutter, and at least two holding pieces projecting toward the center direction of the cylindrical cutter when the fluid pipe cutting ends, With
The cylindrical cutter located at the end of cutting the fluid pipe is characterized in that the chip tray is held by the locking piece in the vicinity of the tip.
According to this feature, by holding and removing the chip tray by the cylindrical cutter at the end of the fluid pipe cutting, the chips captured in the chip tray during cutting can be taken out without being separated. .
[0006]
In addition, since the chip tray is placed immovably in the substantially horizontal direction, the cylindrical cutter can catch the chip tray at an accurate position.
[0007]
Further, the chip tray can be reliably held and collected by the holding piece after the end of cutting.
[0008]
The chip recovery device in the continuous water cutting device of the present invention is the elastic ring body in which the chip tray is provided with a ring-shaped groove formed on the inner peripheral surface of the cylindrical cutter on the outer peripheral surface of the chip tray. It is preferable to hold | maintain by engaging with.
In this way, since the cylindrical cutter is only formed with a ring-shaped groove as a holder, it can smoothly rotate without any resistance during the cutting operation.
[0009]
In the chip collecting device in the continuous water cutting device of the present invention, it is preferable that the cylindrical cutter is provided with a filter through which fluid can pass but chips cannot flow.
If it does in this way, the flow of fluid can be secured, and at the same time, the chips taken in by the cylindrical cutter can be accumulated in the chip receiver placed at the lower part of the cutter.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, one embodiment of the chip recovery device in the continuous water cutting device of the present invention will be described with reference to FIGS. 1 is a cross-sectional view showing a chip discharging means in the continuous water cutting device, FIG. 2 is an enlarged cross-sectional view of part A of FIG. 1, and FIG. 3 is an enlarged cross-sectional view of part B of FIG.
[0011]
In FIG. 1, reference numeral 1 denotes a sealed housing. The sealed housing 1 includes an additional pipe portion 2 that covers a water supply main pipe P that is an existing fluid pipe, a perforated cylinder portion 3 that protrudes in the vertical direction, and a branch pipe. A part of the water supply main pipe P is formed by lowering a cylindrical cutter C, which is composed of a branch cylinder part 4 connected to T and is rotatably attached to the lower part of the drilling machine 5, along the drilling cylinder part 3. It is cut as a cut piece R.
[0012]
Then, a chip tray 10 is supported on the rotation center axis of the cutter C below the perforated tube portion 3, and the chip tray 10 is at the lower end after the cutting process by the cutter C is completed. At this time, it is positioned and held in a state of being inserted in close proximity to the inner periphery of the cutting edge C2 of the cutter C.
[0013]
That is, a support shaft 8 having a predetermined height with a tip formed in a tapered shape protrudes from the upper surface of the central portion of the bottom plate 3 a that seals the lower surface of the perforated tube portion 3. A support cylinder 12 projecting downward from the center of the lower surface of the chip receiving tray 10 is inserted into the support shaft 8 so that the chip receiving tray 10 is positioned at a predetermined height with respect to the bottom surface of the sealed housing. It is positioned and placed immovably in a substantially horizontal direction.
[0014]
The chip tray 10 is formed in a shallow cylindrical shape, and a plurality of through holes 10b are formed on the same circumference of the bottom plate 10a. These through holes 10b are processed by at least a cutter C. A wire mesh 11 is provided as a mesh filter through which the chips of the water supply main pipe P cannot pass.
[0015]
On the other hand, as shown in FIG. 2, the cutter C has a plurality of through-holes C1 formed on the circumference of the cylindrical side wall, and these through-holes C1 are stretched into the through-holes 10b of the chip tray 10. A wire mesh 6 of the same type as the wire mesh 11 serving as a filter is attached.
[0016]
Further, in the vicinity of the cutting edge C2 formed at the lower circumferential edge of the cutter C, as shown in FIG. 3, a vertically long groove C3 is formed on the opposing surface of the cylindrical inner wall, and is held in these vertically long grooves C3. The lower end of the locking claw 14 configured as a piece is pivotally mounted in the groove C3 by the pivot 15 so as to be completely accommodated.
[0017]
Further, the locking claw 14 is formed in a plate shape and is pivoted about 90 degrees from a pivoting portion that is pivotally attached to the pivot shaft 15, and the leading end is twisted about 90 degrees by the torsion coil spring T <b> 1. It is urged | biased so that it may protrude toward the center direction.
[0018]
Accordingly, when the water supply main P is cut by the cutter C, when the locking claw 14 passes through the cut portion of the water supply main P, it comes into contact with the inner and outer peripheral surfaces in the vicinity of the cut portion of the water main P. Since it is guided by the twisted surface and completely accommodated in the groove C3 against the urging force of the torsion coil spring 15, it can pass through the cut portion of the water supply main pipe P.
[0019]
Next, it attaches to an effect | action of the chip recovery apparatus comprised as mentioned above, and demonstrates with reference to FIGS.
[0020]
First, by driving the drilling machine 5 shown in FIG. 1, the cylindrical cutter C is started to move downward along the drilling cylinder portion 3 while being rotated at a predetermined cutting speed, and the cutting edge C2 at the lower end of the cutter C is started. Thus, the cutting process is started from the upper side surface of the water supply main pipe P.
[0021]
The water in the water supply main pipe P leaked to the outside from the cutting portion of the water supply main pipe P which is cut as the cutter C is moved downward at a predetermined feed speed by the drilling machine 5 flows out into the sealed housing or the branch pipe T. To do.
[0022]
At the same time, the chips generated in the cutter C at the time of cutting are the chips which are supported by the support shaft 8 projecting from the bottom plate 3a of the sealed housing 3 below the cylindrical cutter C and immovably supported in the horizontal direction. It is accommodated in the receiving tray 10.
[0023]
Further, when the water that has flowed into the perforated tube portion 3 to the cutter C flows back into the water supply main pipe P again through the plurality of through-holes C1, the chips floating in the tap water in the cutter C are the wire mesh 6. This prevents outflow to the water supply main P.
[0024]
Furthermore, when the cutting process is performed by the cutter C, the locking claw 14 may be in a state of projecting substantially horizontally inside the cutter C by the urging force of the torsion coil spring T1, but at this time, the water supply main pipe P When passing through this cut portion, the locking claw 14 is completely accommodated in the longitudinal groove C3 with its twisted surface guided to the inner and outer surfaces of the water supply main pipe P.
[0025]
Next, when the cutter C is further lowered after the cutting process by the cutter C is completed, the inner peripheral wall of the cutting edge C2 passes in a state close to the outer periphery of the chip tray 10, and then a pair of locking claws 14 on the inner wall of the cutter C Immediately after passing, the locking claw 14 is held in a horizontal state by contact with the bottom surface of the groove C3 by the biasing force of the torsion coil spring T1.
[0026]
Next, the cutter C is pulled up by the action of the punching machine 5. At this time, the chip tray 10 is lifted together with the cutter C while the lower surface of the chip tray 10 is supported by the pair of locking claws 14. The cut piece R of the cut water supply main pipe P is also pulled up together with the cutter C and collected.
[0027]
As a result, the processing by the series of continuous water cutting devices is completed, and the chips or the cut pieces R of the water supply main pipe P generated at the time of cutting are collected by the chip tray 10.
[0028]
Therefore, according to the above embodiment, by holding and removing the chip tray 10 by the cylindrical cutter C at the end of cutting the water supply main pipe P, the chips captured in the chip tray 10 during cutting are removed. Therefore, the cut pieces of the water supply main pipe P cut at the same time can be taken out by the chip tray 10.
[0029]
Further, since the chip tray 10 is mounted so as not to move in a substantially horizontal direction with respect to the bottom plate 3 a of the sealed housing 3, the chip tray 10 can be captured at an accurate position inside the cylindrical cutter C. it can.
[0030]
Further, since the chip tray 10 is configured to be held by the two locking claws 14 that protrude toward the center from the inner surface of the cylindrical cutter C, the chip tray 10 is securely attached. Can be retained and recovered.
[0031]
Next, another embodiment of the chip recovery device in the continuous water cutting device will be described with reference to FIGS. 4 and 5. In addition, about the same structural member as the member which concerns on said embodiment, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted. FIG. 4 is a horizontal sectional view of a cylindrical cutter provided with a locking claw, and FIG. 5 is a vertical sectional view of the cylindrical cutter showing a state in which a chip tray is supported by the locking claw.
[0032]
One end of the plate-like locking claw 16 indicated by the reference numeral 16 is pivotally attached by a pivot 20 so as to be pivotable horizontally. It is comprised so that it may fit completely in a pair of groove | channel 18 formed along.
[0033]
And this latching nail | claw 16 is urged | biased so that it may protrude toward the center direction inside the cutter C with the torsion coil spring T2 similarly to the said embodiment. In addition, since the latching claw 16 which concerns on this embodiment has the same effect | action and effect as the said embodiment, the overlapping description is abbreviate | omitted.
[0034]
Next, another embodiment of the chip recovery device will be described with reference to FIG. (A) of FIG. 6 is a longitudinal cross-sectional view of a cylindrical cutter showing a state in which a chip tray according to still another embodiment of the chip collecting apparatus is engaged and held.
[0035]
Reference numeral 22 shown in the figure is an elastic ring body having a circular cross section made of a material such as elastically deformable rubber. The elastic ring body 22 is held in a ring-shaped groove 25 below the outer periphery of the chip tray 10 '. The outer peripheral portion of the elastic ring body 22 is configured to protrude from the outer peripheral surface of the chip receiving tray 10 '.
[0036]
The chip receiving tray 10 ′ according to the present embodiment has an elastic ring body 22 compressed when the cutter C passes the outer periphery of the chip receiving tray 10 ′ by the lowering action of the cutter C. When it coincides with the ring-shaped groove 24 formed on the inner peripheral surface, the ring-shaped groove 24 is engaged with the restoring force.
[0037]
The elastic ring body 22 can support the weight of the chip receiving tray 10 'or the weight of the chip housed in the chip receiving tray 10' and the partially cut piece R of the water supply main pipe P. It shall have holding power.
[0038]
Therefore, according to the chip collecting apparatus according to the present embodiment configured as described above, the cylindrical cutter C is only formed with the ring-shaped groove 24 as a holder, and therefore the water supply main pipe P During the cutting operation, the cylindrical cutter C can be cut smoothly without any resistance when passing through the cutting portion.
[0039]
Next, another embodiment of the chip recovery device will be described with reference to FIG. FIG. 6B is a longitudinal sectional view of a cylindrical cutter according to still another embodiment of the chip collecting device, showing a state in which a chip tray is engaged and held.
[0040]
Reference numeral 26 shown in the drawing is a holding piece made of, for example, a leaf spring, and is vertically extended in a state in which it is urged outwardly to be opposed to the outer peripheral surface in the vicinity of the bottom plate 10 a of the chip tray 10 ″. It is attached.
[0041]
Each holding piece 26 has an inclined portion 26a formed at an upper portion thereof, and a locking claw 26b whose lower end portion is bent horizontally.
[0042]
On the other hand, a ring-shaped engagement groove 28 is formed on the inner peripheral wall surface in the vicinity of the blade edge C2 of the cutter C, and the holding piece when the cutter C passes the chip tray 10 ″ by the lowering action of the cutter C. 26 is compressed to the position of the two-dot chain line by the inner peripheral wall surface of the cutter C, and when the holding piece 26 reaches the engaging groove 28, it enters the engaging groove 28 by a return elastic action that expands outward of the holding piece 26 itself. To do.
[0043]
Next, when the cutter C is raised, the pair of latching claws 26b at the lower end of the holding piece 26 that has entered the engagement groove 28 engages with the lower end of the engagement groove 28, so that the chip tray 10 '' is moved. Can be lifted.
[0044]
In addition, since the holding | maintenance piece 26 which concerns on this embodiment obtains the same effect | action and effect as the elastic ring body 22 of the said embodiment, the overlapping description is abbreviate | omitted.
[0045]
Moreover, although the latching claws 14 and 16 and the holding piece 26 described in the above-described embodiment have been described as a configuration in which a pair is disposed at the opposing position of the inner surface of the cutter C or the outer peripheral surface of the chip tray 10, it is not limited thereto. However, the arrangement is not limited to a pair in order to achieve a stable arrangement.
[0046]
【The invention's effect】
The present invention has the following effects.
[0047]
(A) According to the invention of claim 1, the chips captured in the chip tray during cutting are made discrete by holding and taking out the chip tray with a cylindrical cutter at the end of the fluid pipe cutting. Can be taken out to the outside.
[0048]
In addition, since the chip tray is placed immovably in the substantially horizontal direction, the cylindrical cutter can catch the chip tray at an accurate position.
[0049]
Further, the chip tray can be reliably held and collected by the holding piece after the end of cutting.
[0050]
(B) According to the invention of claim 2 , since the cylindrical cutter is only formed with a ring-shaped groove as a holder, it can smoothly rotate without any resistance during cutting operation. .
[0051]
(C) According to the invention of claim 3 , at the same time as ensuring the flow of the fluid, the chips taken into the cylindrical cutter can be accumulated in the chip receiver placed at the lower part of the cutter.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view illustrating a chip collecting device according to an embodiment of the present invention, illustrating a chip discharging unit.
FIG. 2 is an enlarged cross-sectional view of a part A in FIG.
FIG. 3 is an enlarged cross-sectional view of a portion B in FIG.
FIG. 4 is a horizontal sectional view of a cylindrical cutter provided with locking claws according to another embodiment of the chip recovery device in the continuous water cutting device of the present invention.
FIG. 5 is a longitudinal sectional view of a cylindrical cutter showing a state where a chip tray is supported by a locking claw, similarly.
FIG. 6 relates to still another embodiment of the chip collecting device in the continuous water cutting device of the present invention, wherein (a) is engaged and held with a chip tray according to still another embodiment of the chip collecting device. The longitudinal cross-sectional view of the cylindrical cutter which shows the state which is carrying out, (b) is concerned with further another embodiment of a chip collection | recovery apparatus, The vertical cross section of the cylindrical cutter which shows the state by which the tray for chips is engaged and hold | maintained FIG.
FIG. 7 is a cross-sectional view showing a chip discharging means in a continuous water cutting device for cutting a conventional fluid pipe in a sealed state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sealing housing 2 Additional pipe part 3 Sealing housing 3a Bottom plate 3 Drilling cylinder part 4 Branching cylinder part 5 Drilling machine 6 Wire mesh (filter)
8 Support shaft 10 Chip tray 10a Bottom plate 10b Through hole 11 Metal mesh 12 Support cylinder 14 Locking claw 15 Axis 16 Locking claw 18 Groove 20 Pivot 22 Elastic ring body 24, 25 Ring-shaped groove 26 Holding piece 26a Inclined portion 26b Engagement Claw 28 Engaging groove C Cylindrical cutter C1 Through-hole C2 Cutting edge C3 Groove P Water supply main pipe R Cutting piece T Branch pipe

Claims (3)

A chip collecting device in a continuous water cutting device that covers a fluid pipe with a sealed housing and cuts the fluid pipe with a cylindrical cutter in a continuous water state,
The cylindrical cutter is inserted in close proximity to the inner periphery of the cutting edge, and is mounted on the rotation center axis of the cylindrical cutter and immovably in a substantially horizontal direction on the lower surface of the perforated tube portion of the sealed housing, A chip tray in which a through hole is formed in the bottom plate, and a mesh wire mesh stretched through the through hole so that chips during cutting cannot pass through,
During the fluid pipe cutting, it is accommodated in a groove formed on the cylindrical inner surface of the cylindrical cutter, and at least two holding pieces projecting toward the center direction of the cylindrical cutter when the fluid pipe cutting ends, With
The chip collecting apparatus in the continuous water cutting apparatus, wherein the cylindrical cutter located at the end of cutting the fluid pipe holds the chip tray by the locking piece in the vicinity of the tip.   The said chip receptacle is hold | maintained because the ring-shaped groove formed in the said cylindrical cutter inner peripheral surface engages with the elastic ring body provided in the outer peripheral surface of the said chip receptacle. Chip recovery device in a continuous water cutting device.   The chip recovery apparatus in the continuous water cutting apparatus according to claim 1, wherein the cylindrical cutter is provided with a filter through which fluid can pass but chips cannot flow.

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