JP4007825B2 - Chip recovery device in continuous water cutting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
According to the present invention, a rotating sleeve having a working hole into which a cutting tool can be inserted is sealed on the outer peripheral surface of a fluid pipe, and a cutting tool that rotates integrally with the rotating sleeve is inserted into the working hole so that the fluid pipe While feeding toward the center and rotating the rotating sleeve, chips generated when turning around the fluid pipe are cut out together with the water flow of the fluid pipe through the working hole of the rotating sleeve. The present invention relates to a chip collection device in a continuous water cutting device.
[0002]
[Prior art]
As shown in FIG. 7, the continuous water cutting device provided with this kind of conventional chip recovery device is such that the cutting tool 02 descends in the working hole 03a toward the center of the fluid pipe 01 and the outside of the fluid pipe 01 is removed. When reaching the surface, the cutting tool 2 rotates about the central axis OO and rotates once around the fluid pipe 01 together with the rotating sleeve 03, whereby the fluid pipe 01 is cut.
[0003]
Therefore, the chips generated at the time of cutting the fluid pipe 01 are subjected to the action of a fluid flow flowing out from a cutting port (not shown) from the chip collecting cylindrical body 07 extended so that the tip is close to the outer periphery of the fluid pipe 01. Thus, the fluid is discharged together with the fluid from a discharge port 03b provided in the rotary sleeve 03 through a through passage formed by the cutting tool 02 and the cylindrical body 07.
[0004]
The tubular body 07 has a head portion 07a having an enlarged diameter at the upper end, and the head portion 07a is engaged with an annular groove 3a ′ formed in the hole 03a of the rotating sleeve 03. Even if the size and the size of the cutting tool 02 are different, various cylindrical bodies are prepared so that it can be accurately handled.
[0005]
[Problems to be solved by the invention]
In such a conventional chip collection device, the cutting process is completed when the tip of the chip collection tubular body 07 is provided close to the outer periphery of the fluid pipe 01 so that the chips can be collected efficiently. After that, when the support body (not shown) supporting both sides of the cutting portion of the fluid pipe 01 is removed, when the cut fluid pipe 01 bends or expands and contracts, When the tip abuts against and interferes with the outer periphery of the fluid pipe 01, a load acts on the casing 05 that seals the outer periphery of the fluid pipe 01 in a liquid-tight manner, causing water leakage from the seal portion 06, or interference. There was a problem that the chip collection cylindrical body 07 was damaged by the impact at the time.
[0006]
The present invention has been made in view of the above problems, and can not only reliably extract chips generated during drilling or cutting of a fluid pipe to the outside, but also a fluid pipe generated after cutting without removing the continuous water cutting device. It aims at providing the chip collection | recovery apparatus in the continuous water cutting device which can prevent interference with the chip collection | recovery apparatus by bending of.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a chip collecting device in a continuous water cutting device according to the present invention includes a rotating sleeve having a working hole through which a cutting tool can be inserted in a sealed state on an outer peripheral surface of a fluid pipe, A cutting tool that rotates integrally with the rotating tube is inserted into the working hole and fed toward the center of the fluid pipe, and the rotating sleeve is rotated to turn around the fluid pipe surrounded by the rotating sleeve. A continuous water cutting device, wherein a chip guide through which a cutting tool can be inserted is attached to the lower end of the rotating sleeve so as to be movable back and forth between the approach position and the separation position with respect to the outer periphery of the fluid pipe. It is a feature.
According to this feature, by placing the chip guide close to the outer periphery of the fluid pipe, the chips generated while the cutting tool is drilling the fluid pipe are not mixed into the fluid pipe and are reliably external. In addition, it is possible to avoid interference with the chip guide even if the fluid pipe is bent or expanded or contracted after cutting by setting the chip guide at a position separated from the outer periphery of the fluid pipe. it can.
[0008]
In the chip collecting device in the continuous water cutting device according to the present invention, the chip guide is screwed into a female screw threaded on the outer periphery of the lower end of the working hole of the rotating sleeve with a male screw threaded on the outer periphery, and the rotation It is preferable to move forward and backward by a rotational force transmitted from a feed mechanism detachably attached to the upper end of the sleeve.
In this way, the chip guide can be easily moved forward and backward by the rotational force transmitted by the feed mechanism, and the gap between the tip of the chip guide and the outer periphery of the fluid pipe can be accurately positioned.
[0009]
The chip recovery apparatus in the continuous water cutting device according to the present invention is configured such that the feeding mechanism has an operating rod having an engaging member that can be engaged and disengaged with an engaging portion formed on the inner periphery of the chip guide at the tip thereof. It is preferable that
In this way, the chip guide can be easily advanced and retracted from a remote position by the operating rod having the engaging member.
[0010]
In the chip collecting device in the continuous water cutting device according to the present invention, the locking portion of the chip guide is composed of a pair of locking pieces disposed on the inner peripheral surface, and the engaging member is the pair of locking members. It is preferably formed as a substantially square plate-like body that can be simultaneously engaged with the stop piece.
If it does in this way, the latching member of a plate-shaped body can be easily engaged with a pair of latching pieces, and rotation transmission can be performed reliably.
[0011]
In the chip collecting device in the continuous water cutting device of the present invention, the male screw is screwed only on the upper part of the chip guide, the female screw of the rotating sleeve is screwed, and the upper part has a diameter larger than the outer diameter of the male screw. It is preferable that a relief hole is formed.
In this way, when the chip guide is pulled up and the part where the male screw is formed is accommodated in the escape hole, the screw guide is released and the chip guide is idled. Is prevented, and the chip guide can be held in place without being raised too much.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. The chip collection | recovery apparatus in the continuous water cutting device of this invention is demonstrated with reference to FIG.1 and FIG.2. FIG. 1 is a partially broken cross-sectional view showing a state before starting cutting of a fluid pipe in a continuous water cutting apparatus to which a chip collecting apparatus of the present invention is applied, and FIG. 2 is a diagram before an existing fluid pipe is cut by a cutting tool. It is sectional drawing of the feed mechanism in the chip collection | recovery apparatus attached to the surrounding wall upper part of a rotation sleeve.
[0013]
First, a basic configuration of an expansion / contraction flexure apparatus that is applied when an existing fluid pipe is cut by a continuous water cutting apparatus for a fluid pipe will be described with reference to FIG.
[0014]
First, in FIG. 1, 1 is a steel pipe made of steel pipe, which is an existing fluid pipe exposed by excavating the ground (not shown) for a required length. The spherical guide sleeve 13 and the straight tubular guide sleeve 14 having the above-described structure are fitted to each other with a predetermined distance from each other, and the peripheral edges of the opening portions at both ends are welded to the outer peripheral surface of the water pipe 1 and the upper and lower butted parts are divided into two parts. By welding the surfaces, they are firmly sealed.
[0015]
The outer peripheral surface of the left spherical guide sleeve 13 is formed as a spherical surface 13a centering on the tube axis, and annular stoppers 13b are connected to both left and right ends thereof. The right straight tubular guide sleeve 14 has a right cylindrical shape, and annular stoppers 14a are continuously provided on the outer peripheral surfaces of the left and right ends thereof. Around the water pipe 1 between the left and right guide sleeves 13, 14, a pair of left and right casings 15, 15 made of steel having a vertically divided structure are provided between the opposing surfaces of the annular space. While C is formed, an annular space S is also formed between the outer peripheral surface of the water pipe 1 and is externally fitted, and the upper and lower butted surfaces are integrated by welding.
[0016]
An outward short flange 15 a is continuously provided at the opposite end of each housing 15, and the inner peripheral surface of the left end portion of the left housing 15 is a substantially intermediate portion of the spherical surface 13 a of the left spherical guide sleeve 13. A spherical guide is formed by pressing a packing 17 inserted into an annular recess 16 formed at the left end of the casing 15 into two parts by an annular ring 18 and a plurality of bolts 19 inserted into the casing 15. The water tightness of the sliding contact surface between the sleeve 13 and the left casing 15 is maintained.
[0017]
The packing 17 inserted into the annular recess 16 formed at the right end of the casing 15 is in sliding contact with the inner peripheral surface of the right end of the right casing 15 near the right end of the outer peripheral surface of the right straight tubular guide sleeve 14. Is pressed by an annular ring 18 and a bolt 19 similar to those described above, the water tightness of the sliding contact surface between the straight tubular guide sleeve 14 and the right casing 15 is maintained.
[0018]
On the outer peripheral surface of the opposite ends of the left and right casings 15, 15, the rotary sleeve 3 having a vertically split structure is configured to loosely fit a pair of annular grooves 21 on the inner peripheral surface to the flanges 15 a of both casings 15. Accordingly, the movement in the tube axis direction is restricted, and the outer flanges are rotatably fitted, and the mounting flanges (not shown) formed on the opposing surfaces are fastened together by bolts.
[0019]
A packing 25 is inserted into annular recesses 24 formed on the inner peripheral surfaces of both ends of the rotating sleeve 3, and both packings 25 are pressed by push wheels 26 bolted to both side surfaces of the rotating sleeve. Water tightness between the outer peripheral surface of the casing 15 and the inner peripheral surface of the rotary sleeve 3 is maintained.
[0020]
The packing 25 is preferably made of hard rubber having a small sliding resistance with respect to the casing 15. As will be described later, the resistance when rotating the rotating sleeve 3 around the casing 15 is reduced, and the packing 25 is twisted. To prevent damage.
[0021]
A work hole 3a having a slightly smaller diameter than the annular space C formed in the opposing surfaces of the two casings 15 is formed in the central portion of the upper peripheral wall of the rotary sleeve 3, and the opening end portion above it is not shown in the drawing. Although the gate valve device is attached and the details thereof will be described later, a cutting device 29 used at the time of cutting work is attached and the lower opening end extending to the vicinity of the outer peripheral portion of the water pipe 1 is attached to the upper end of the present invention. A cylindrical chip guide 7 constituting a part of the chip collection device is attached to the outer peripheral portion of the water pipe 1 so as to be movable forward and backward.
[0022]
Thereafter, although not particularly shown, in order to rotationally drive the rotating sleeve 3, driving means such as a driving sprocket and a motor are installed on the lower base plate, and each support shaft and follower are provided on the outer periphery of the rotating sleeve 3. A sprocket is installed and a chain is passed over both sprockets.
[0023]
Next, the chip recovery device of the present invention will be described with reference to FIG.
[0024]
In FIG. 2, reference numeral 8 denotes a chip collection device. In this chip collection device 8, a chip guide 7 through which a cutting tool can be inserted into the lower end of the rotating sleeve 3 is positioned closer to the outer periphery of the water pipe 1. It is mounted so as to be able to move forward and backward between the position and the separated position.
[0025]
The chip guide 7 is formed in a cylindrical shape, and a pair of locking pieces 7a and 7b serving as locking portions project from the inner circumferential surface, and the diameter of the stepped portion formed on the outer circumference is increased. A male screw 7c is screwed on the outer periphery of the upper part.
[0026]
A female screw 10 having a predetermined length is screwed to the inner periphery of the working hole 3a formed at the lower end of the rotating sleeve 3, and an outer diameter of the male screw 7c of the chip guide 7 is provided above the female screw 10. A larger diameter relief hole 12 is formed.
[0027]
On the other hand, a feed mechanism 20 is detachably attached to the casing 3-2 at the uppermost end of the rotating sleeve 3, and the upper end of the feed mechanism 20 attached to the uppermost casing 3-4 is closed. A cylindrical cap 22 with a slit cut, a screw rod 28 screwed into a boss 23 provided at the upper end of the cap 22 and formed with an operating portion at the upper end, and a coupling tool 30 are connected coaxially. The operating rod 32 and an engaging member 34 attached to the lower end of the operating rod 32 are configured.
[0028]
Although this connection tool 30 is not shown in detail, the cap 22 is arranged so that either a tightening position where the screw rod 28 and the operating rod 32 are integrally connected or a loosening position where the rotation of the screw rod 28 is not transmitted can be taken. It is comprised so that it can operate from the outside via a slit.
[0029]
The engaging member 34 is formed in a substantially rectangular plate-like body and is configured such that both ends in the width direction can be simultaneously engaged with the pair of locking pieces 7a and 7b on the inner periphery of the chip guide 7, and the lower end portion is formed. It has a pointed shape.
[0030]
Next, the operation of the chip recovery device 8 configured as described above will be described with reference to FIGS. FIGS. 3A to 3C are partial cross-sectional views showing the engagement state between the chip guide and the engaging member of the feed mechanism, and FIGS. It is the bottom view which looked at the chip guide which shows the state driven rotationally by engagement with the combined member from the lower end.
[0031]
First, in the initial state of the chip recovery device 8, as shown in FIG. 3A, the chip guide 7 is inserted into the large-diameter escape hole 12 formed in the casing 3-1 at the lower end of the rotary sleeve 3, and the male screw 7c. The tip where the chip guide 7 is separated from the outer peripheral surface of the water pipe 1 is stored and held in a freely rotatable state.
[0032]
In this state, the engaging member 34 of the feed mechanism 20 is retracted above the chip collecting device 8 so that the rotation of the screw rod 28 is not transmitted to the operating rod 32 in a state where the coupling tool 30 is in the loosened position. Keep it. When a finger (not shown) is attached to the upper end of the screw rod 28 and the screw rod 28 is rotated forward in a certain direction while inserting a finger from the slit of the cap 22 and holding it so that the operation rod 32 does not rotate, The engaging member 34 at the lower end of the flange 32 is lowered and inserted into the chip guide 7 in a short time.
[0033]
For example, as shown in FIG. 4A, the engaging member 34 is inserted into a position where it does not come into contact with the pair of locking pieces 7a and 7b, and then the screw rod 28 is placed with the coupling tool 30 in the tightening position. Is transmitted to the operating rod 32. When the screw rod 28 is further rotated in the direction indicated by the arrow from that state, the engaging member 34 is also rotated in the same direction as the screw rod 28 as shown in FIG. Are simultaneously engaged with the locking pieces 7a and 7b. FIG. 3B shows a state in which, after the engaging member 34 is engaged with the pair of locking pieces 7 a and 7 b, the chip guide 7 is rotated and the male screw 7 c is screwed with the female screw 10 of the rotating sleeve 3. ing.
[0034]
Next, when the rotation of the engaging member 34 is continued, as shown in FIG. 4C, the chip guide 7 rotates, the male screw 7c is guided by the female screw 10 and moves downward, and finally As shown in FIG. 3 (c), the chip guide 7 is positioned and held when the tip thereof is lowered to a position near the outer peripheral surface of the water pipe 1.
[0035]
Next, when the chip guide 7 is positioned and held in the vicinity of the outer peripheral surface of the water pipe 1, when the screw rod 28 is rotated reversely with the coupling tool 30 of the feed mechanism 20 in the loosened position, the engaging member 34 is paired. The engaging member 34 moves to the upper side of the gate valve device without interfering with the locking pieces 7a and 7b, and the gate valve is protruded by operating the moving mechanism (not shown) to seal the pipe line above the work hole 3a. To do.
[0036]
Thereafter, the feed mechanism 20 of the chip collecting device 8 is removed from the uppermost casing 3-2, and a cutting device 29 shown in FIG. The cutting device 29 includes a screw feed type lifting mechanism that moves the end mill 2 forward and backward toward the center of the water pipe 1 and a hydraulic motor that rotationally drives the end mill 2.
[0037]
However, at the time of cutting, as shown in FIG. 1, the end mill 2 can move up and down in the work hole 3 a, and penetrates the outer periphery of the water pipe 1 by moving downward toward the center of the water pipe 1 of the end mill 2. After that, the water pipe 1 is cut by rotating the end mill 2 around the water pipe 1 together with the rotating sleeve 3 while rotating the end mill 2 around the central axis OO of the tool.
[0038]
Next, the cutting action of the water pipe by the continuous water cutting device to which the chip recovery device according to the present invention is applied will be described with reference to FIGS. FIG. 5 is a partial cross-sectional view showing a state in which an end mill as a cutting tool is at an upper end position, which is an initial state, and FIG. 6 shows chips generated by processing of the end mill guided to a chip guide and discharged to the outside. It is a fragmentary sectional view showing a state.
[0039]
When the cutting device 29 is attached, the gate valve body of the gate valve device is moved backward to open the work hole 3a, the hydraulic motor (not shown) is operated to rotate the end mill 2, and the handle attached to the upper end of the lifting mechanism As shown in FIG. 5, the end mill 2 is lowered toward the upper end surface of the water pipe 1 by rotating (not shown).
[0040]
Next, as shown in FIG. 6, the drilling of the upper end surface of the water pipe 1 is completed by the axially descending movement of the end mill 2. Therefore, the rotary sleeve 3 is rotated once in a fixed direction by operating a drive motor (not shown) to rotate both chains. At this time, both side surfaces of the rotating sleeve 3 may be held by a guide roller or the like separately attached to the water pipe 1 to prevent rattling in the pipe axis direction.
[0041]
When the water pipe 1 is thick, it may be cut by rotating the rotating sleeve 3 alternately in the forward and reverse directions while feeding the end mill 2 stepwise. When the rotating sleeve 3 is rotated as described above, the water pipe 1 is cut by the width of the outer diameter of the end mill 2.
[0042]
Chips generated during drilling by the end mill 2 are moved into the work hole 3a under the action of fluid pressure flowing into an annular gap formed by the inner wall of the chip guide 7 and the outer periphery of the end mill 2 shown in FIG. It is discharged to the outside together with the fluid from a discharge port 3b provided above the rotating sleeve 3. At this time, the chips can be efficiently recovered by bringing the tip of the chip guide 7 closer to the water pipe 1.
[0043]
When the water pipe 1 is cut, the handle at the upper end of the elevating mechanism is rotated to move the end mill 2 up to the valve body position of the gate valve device, and the gate valve body is protruded by operating the moving mechanism (not shown). After sealing the pipe line 3a above, the cutting device 29 is removed.
[0044]
Here again, the feed mechanism 20 is attached to the casing 3-2 at the uppermost end of the rotary sleeve 3, and the screw rod 28 is rotated with the coupling tool 30 in the loosened position while holding the operating rod 32 with hand so that it does not rotate. The engaging member 34 at the lower end of the operating rod 32 is lowered until it is inserted into the chip guide 7.
[0045]
Thereafter, when the screw rod 28 is rotated in the reverse direction with the coupling tool 30 in the tightening position, the engaging member 34 engages with the pair of locking pieces 7a and 7b and moves the chip guide 7 in the direction opposite to the arrow in FIG. Rotating, the chip guide 7 rises while rotating, the portion where the male screw 7c is formed is unscrewed from the female screw 10 formed on the casing 3-1, and the large diameter formed on the casing 3-1. Is accommodated in the relief hole 12.
[0046]
At this time, since the load applied to the screw rod 28 is suddenly eliminated, the screw operator can feel that the chip guide 7 has come to the raised position. Therefore, the chip guide 7 can always be stored and held at a position separated from the water pipe 1 when not in use, and avoids interference with the chip guide 7 even if the water pipe 1 is bent or stretched after cutting. can do. By continuing the reverse rotation of the screw rod 28 as it is, the engaging member 34 moves to above the gate valve device, where the gate valve is protruded to seal the pipe line above the working hole 3a, and the feed mechanism 20 is casing. Remove from 3-2.
[0047]
Next, after mounting a water faucet attachment device (not shown), the gate valve body is opened, and the water faucet is press-fitted into the working hole 3 a of the rotating sleeve 3 and sealed. Next, the water stopper mounting device and the gate valve device are removed, and the retaining plate is fixed to the upper opening surface of the working hole 3 a of the rotating sleeve 3.
[0048]
Finally, the support shaft attached to the outer peripheral surface of the rotating sleeve 3, the driving means such as a motor, the left and right supports, the base plate, and the like are removed, and the exposed water pipe 1 is backfilled to complete the construction. .
[0049]
Therefore, according to the continuous water cutting device to which the chip recovery device of the present invention configured as described above is applied, the chip guide 7 moves forward and backward between the approach position and the separation position with respect to the outer periphery of the water pipe 1. Since the end mill 2 is drilled in the water pipe 1, the chips generated while the end mill 2 is drilled are not mixed in the water pipe 1, and the chips generated at the time of cutting can be reliably taken out to the outside. Not only can the interference with the chip guide 7 be avoided even if the water pipe 1 after cutting is bent or stretched.
[0050]
Further, since the male screw 7c in which the chip guide 7 is screwed on the outer periphery and the female screw 10 screwed on the inner periphery of the lower end of the working hole 3a of the rotating sleeve 3 are screwed together, the rotation transmitted by the feed mechanism 20 The gap between the tip of the chip guide 7 and the outer periphery of the water pipe 1 can be accurately positioned by adjusting the rotation angle or the rotation amount of the chip guide 7 applied by force.
[0051]
Further, a clearance hole 12 having a diameter larger than the outer diameter of the male screw 7c is formed in the inner periphery of the working hole 3a in the vicinity of the lower end of the rotary sleeve 3 so that a portion where the male screw 7c of the chip guide 7 is formed can be accommodated. Since the chip guide 7 is pulled up into the working hole 3a near the lower end of the rotary sleeve 3 and the male screw 7c is accommodated in the escape hole 12, the screwing with the female screw 10 is released. The chip guide 7 is idled and further movement is prevented and the chip guide 7 can be held in a fixed position.
[0052]
【The invention's effect】
The present invention has the following effects.
[0053]
(A) According to the first aspect of the present invention, the chip generated while the cutting tool is drilling the fluid pipe is mixed into the fluid pipe by setting the chip guide close to the outer circumference of the fluid pipe. The chip guide can be reliably taken out to the outside, and the chip guide can be separated from the outer periphery of the fluid pipe so that the chip guide can be operated even if the fluid pipe is bent or expanded or contracted after cutting. Can be avoided.
[0054]
(B) According to the invention of claim 2, the chip guide can be easily moved forward and backward by the rotational force transmitted by the feed mechanism, and the gap between the tip of the chip guide and the outer periphery of the fluid pipe is accurately set. Can be positioned.
[0055]
(C) According to the invention of claim 3, the chip guide can be easily advanced and retracted from a remote position by the operating rod having the engaging member.
[0056]
(D) According to the invention of claim 4, the locking member of the plate-like body can be easily engaged with the pair of locking pieces, and rotation transmission can be reliably performed.
[0057]
(E) According to the invention of claim 5, when the chip guide is pulled up and the portion where the male screw is formed is accommodated in the escape hole, the screw engagement with the female screw is released. The guide is idled to prevent further movement, and the chip guide can be held in place without being raised too much.
[Brief description of the drawings]
FIG. 1 is a partially broken cross-sectional view showing a state before starting cutting of a fluid pipe in a continuous water cutting device to which a chip collecting device of the present invention is applied.
FIG. 2 is a cross-sectional view of a feed mechanism in a chip collecting device attached to an upper part of a peripheral wall of a rotating sleeve in which an existing fluid pipe is cut by a cutting tool.
FIGS. 3A to 3C are partial cross-sectional views showing an engagement state between a chip guide and an engagement member of a feed mechanism. FIGS.
FIGS. 4A to 4C are bottom views of a chip guide as viewed from the lower end, showing a state of being rotationally driven by engagement with an engaging member of a feed mechanism. FIGS.
FIG. 5 is a partial cross-sectional view showing a state where an end mill which is a cutting tool is in an upper end position which is an initial state.
FIG. 6 is a partial cross-sectional view showing a state in which chips generated by processing the end mill are guided to a chip guide and discharged to the outside.
FIG. 7 is a cross-sectional view of a continuous water cutting device provided with a conventional chip collecting device.
[Explanation of symbols]
1 Fluid pipe (water pipe)
2 End mill (cutting tool)
3 Rotating sleeve 3-1, 3-2 Casing 3a Work hole 3b Discharge port 7 Chip guide 7a, 7b Locking piece (locking part)
7c Male thread 8 Waste collection device 12 Escape hole 13 Spherical guide sleeve 13a Spherical surface 13b Annular stopper 14 Straight tubular guide sleeve 14a Annular stopper 15 Housing 15a Flange 16 Annular recess 17 Packing 18 Annular ring 19 Bolt 20 Feed mechanism 21 Annular groove 22 Cap 23 Boss 24 Annular recess 25 Packing 26 Push ring 28 Screw rod 29 Cutting device 30 Connecting tool 32 Operating rod 34 Engaging member C Annular space O Center axis S Annular space

Claims (5)

A rotating sleeve having a working hole through which a cutting tool can be inserted is sealed on the outer peripheral surface of the fluid pipe, and a cutting tool that rotates integrally with the rotating sleeve is inserted through the working hole toward the center of the fluid pipe. A continuous water cutting device for turning and cutting around a fluid pipe surrounded by the rotating sleeve by feeding and rotating the rotating sleeve, and the cutting tool can be inserted into the lower end of the rotating sleeve A chip collecting device in a continuous water cutting apparatus, wherein a chip guide is mounted on the outer periphery of the fluid pipe so as to be movable back and forth between an approach position and a separation position. The chip guide has a male screw threaded on the outer periphery and is engaged with a female screw threaded on the inner periphery of the lower end of the working hole of the rotating sleeve, and is transmitted from a feed mechanism detachably attached to the upper end of the rotating sleeve. The chip collection | recovery apparatus in the uninterrupted water cutting device of Claim 1 adapted to move forward and backward by the rotational force applied. 3. The continuous water cutting device according to claim 2, wherein the feed mechanism is configured by an operating rod having an engaging member that can be engaged and disengaged with an engaging portion formed on an inner periphery of the chip guide at a tip thereof. Chip recovery device. The locking portion of the chip guide is composed of a pair of locking pieces disposed on the inner surface facing each other, and the engagement member is a substantially rectangular plate-like body that can be simultaneously engaged with the pair of locking pieces. The chip collection | recovery apparatus in the continuous water cutting device of Claim 3 currently formed as. The male screw is screwed only in the upper part of the chip guide, the female screw of the rotating sleeve is screwed, and a clearance hole larger in diameter than the outer diameter of the male screw is formed in the upper part. The chip collection | recovery apparatus in the continuous water cutting device in any one.

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