JPH11277458A - Chips eliminating method at the time of drilling polyethylene pipe for pipeline - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and securely eliminate the chips by threading a screw part of an extruder with a screw hole of a hole saw, and after a tip of the extruder abuts on the chips, pushing the screw part more into a deep hole. SOLUTION: A screw part 2a of an extruder 1 is threaded with a screw hole 18 of a hole saw 19 exposed by eliminating a shank, and a grip part 3 is rotated so as to insert the screw part 2a into the hole saw 19, and a tip 2b of a screw rod 2 abuts on a bottom surface of the chips 25. In this condition, the grip part 3 is rotated more in the progressing direction so that the screw part 2a is inserted more into a deep hole 16, and the tip 2b pushes the bottom surface of the chips 25 so as to extrude the chips 25 to an opening side of the hole saw 19, and extrudes the chips to a position out of the opening. The chips 25 is easily taken out of the deep hole 16 by the screwing force of the extruder 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing cutting powder when drilling a polyethylene pipe for water distribution, which removes cutting powder remaining in a drilling forsaw by drilling the polyethylene pipe for water distribution.

[0002]

2. Description of the Related Art Cast iron pipes, vinyl chloride pipes and the like are used as water distribution pipes, but recently, high density polyethylene pipes are used. These distribution pipes are fitted with a faucet saddle equipped with a faucet. That is, as shown in FIG. 7, a high-density polyethylene pipe 4, which is one of the water distribution pipes, is
And the lower saddle 6 are sandwiched by a water faucet saddle 7 connected by bolts and nuts. As shown, a water tap 9 is screwed to the upper saddle 7 via a sealing material 8 such as a gasket. A water passage 10 is formed at the center of the water faucet 9, and a water passage 11 orthogonal to the water passage 11 communicates with a water passage on the use side through an on-off valve 12. A cap (not shown) is screwed on the upper side of the water faucet 9 to shut off the water inlet 10 from the outside air.

A hole 13 is formed in the high-density polyethylene pipe 4 so that the water inlet 10 of the water faucet 9 communicates with the inside of the high-density polyethylene pipe 4. Figure 6
A drilling holster 14 as shown in FIG. 7 is used.

[0004] As the drilling hole saw 14, a cutting blade 15 formed on the opening side, a deep hole 16 opening on the opening side, a groove 17 and a screw hole 18 communicating with the deep hole 16 are formed.
9, a guide pipe 21 surrounding the outer periphery and fixed by screws 20; a shank 23 screwed into the screw hole 18 and screwed into the rotating shaft 22 of the drive unit; In addition, as shown in FIG.

[0005]

FIG. 7 shows a hole 1 in a high-density polyethylene pipe 4 by using the drilling hole 14 having the above structure.
3 shows a method of piercing No. 3. That is, the drilling forsaw 14 is inserted into the water inlet 10 of the water faucet 9, and the cutting blade 1
5 pierces the wall of the high-density polyethylene tube 4. Chips are produced by drilling, but in the case of high-density polyethylene pipes, since they are more flexible and sticky than water pipes made of cast iron, unlike scattered chips generated when drilling water pipes made of cast iron. In addition, the cutting powder becomes a cutting powder in a continuous form.
In the case of the drilling hole saw 14 having the above-mentioned structure, the cutting powder accumulates in the deep hole 16 of the hole saw 19 and is not discharged outside the drilling hole saw 14. Further, in the case of the drilling horso 14, the spiral groove 24 is formed in the opening side of the horso 19 as described above. The helical groove 24 is provided for facilitating the introduction of the cutting powder into the deep hole 16 of the Horso 19 and for preventing the introduced cutting powder from falling.

[0006] The introduction of the cutting powder into the deep hole 16 of the forger 19 reduces the adverse effect on the cutting performance due to the discharge of the cutting powder at the time of drilling, so that there is an advantage that the cutting performance at the time of drilling can be improved. However, since the cutting powder remains in the Horso 19, it is necessary to remove it. Horso 19
Since the cutting powder remaining inside is held in a state of being held in the deep hole 16, a helical groove formed by engagement with the helical groove 24 is formed on the outer periphery thereof, and the swarf is held in the deep hole 16. There is a problem that further increases the force. Therefore, Horso 1
There is a problem that the cutting powder cannot be removed by a light extruding method that vibrates 9.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and can easily and surely remove cutting powder remaining and held in a drilling horso, and can provide a simple tool. It is an object of the present invention to provide a method for removing cutting powder at the time of drilling a polyethylene pipe for water distribution which can be carried out at a lower cost.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a water distribution polyethylene pipe sandwiched by a water faucet saddle to which a water faucet is screwed. A method for removing cutting powder remaining in the drilling forsaw when drilling with the drilling forsaw inserted from the above, wherein the drilling forsaw is provided with a cutting blade provided on the opening side of the tip and the opening side. A hollow pipe-shaped horso that forms a deep hole and a groove that opens to and a screw hole communicating with the deep hole,
A guide pipe fixed around the outer periphery of the holsaw;
A shank that is screwed into the threaded hole of the forsaw and connected to the drive unit, and removes cutting powder generated by the perforation of the polyethylene pipe for water distribution by the cutting blade and stored in the deep hole of the forsaw. In this case, the shank is removed from the holder, the screw portion of the extruder is screwed into the screw hole of the holder, the tip of the extruder contacts the cutting powder, and the screw is further deepened. It is characterized by a method of removing cuttings at the time of drilling a polyethylene pipe for water distribution in which the cuttings in the deep hole are extruded and removed by being pushed into the hole.

[0009] By drilling a polyethylene pipe for water distribution with a drilling hole, a cutting powder is introduced into the deep hole of the drilling hole and held. The drilling holder in this state is set in a free state, and the connection between the holder and the shank is released. Since the threaded hole communicating with the deep hole is threaded in the Horso, the screw part of the extruder is screwed into this screw hole,
The tip of the screw portion of the extruder is brought into contact with the cutting powder in the deep hole. By screwing the extruder in this state,
The cutting powder is pushed out of the deep hole and removed by the strong pushing force of the screw.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The method for removing cuttings when drilling a polyethylene pipe for water distribution according to the present invention will be described below in detail with reference to the drawings. First, referring to FIGS. 1 and 2, the structure of an extruder 1 used in the method for removing cutting powder when drilling a polyethylene pipe for water distribution according to the present invention will be described. The extruder 1 has a T-shape, and includes a screw rod portion 2 and a holding portion 3 formed integrally with the base end portion 2c at right angles. Screw rod part 2
A thread 2a having an appropriate length is threaded from the distal end 2b toward the proximal end 2c. In addition, the gripping portion 3 is made of an appropriate length that can be engaged with the hand and can rotate the screw rod portion 2, and the cross-sectional shape may be any shape such as a round shape and a square shape.

As described above, FIG. 7 shows a case where a hole communicating with a water outlet of a water faucet is formed at a predetermined position of a high-density polyethylene pipe for water distribution by using a piercing hole 14 shown in FIG. Done by the method. That is, the cap (not shown) of the water faucet 9 is removed, the fork 19 of the perforator 14 is inserted into the water inlet 10, and the rotary shaft 22 is driven to rotate, so that the cutting blade 15 perforates the hole 13. FIG. 3 shows the hole 13 of the high-density polyethylene pipe 4 pierced by the piercing forcer 14.
3 shows the cutting powder 25 generated from the portion. The cutting powder 25 is
As shown in FIG.
It is introduced and remains. As shown, a thread groove 26 is formed on the outer periphery of the cutting powder 25. The screw groove 26 is formed by screwing with the spiral groove 24 (FIG. 6) of the horus 19, and the cutting powder 25 is smoothly introduced into the deep hole 16 by the spiral groove 24. However, as described above,
The cutting powder 25 is held in the deep hole 16 by the formation.

FIGS. 3 and 4 show a method of extruding the cut powder 25 by the extruder 1 shown in FIGS. First, the drilling horso 14 shown in FIG. 6 is removed from the rotating shaft 22 side, and then the shank 23 is
Remove from This removal operation is easily performed because the spanner hook 23a (FIG. 6) is formed on the shank 23.

Next, as shown in FIG. 3, the screw portion 2a of the extruder 1 is screwed into the screw hole 18 of the hoso 19 from which the shank 23 is removed, and the grip portion 3 is rotated. The portion 23 is inserted into the horror 19, and as shown in FIG.
5 hits the bottom. From this state, by further rotating the gripping portion 3 in the direction of travel of the screw, the screw portion 2a further enters the deep hole 16, and the tip 2b of the screw portion 2a contacts the bottom surface of the cutting powder 25 as shown in FIG. By pressing, the cutting powder 25 is extruded to the opening side of the forge 19 and extruded to a position outside the opening side. Although the cutting powder 25 is held in the deep hole 16 as described above, since the screw force of the extruder 1 exceeds it, the cutting powder 25 can be easily removed from the deep hole 16. FIG. 5 shows the shape of the cutting powder 25 removed from the deep hole 16. When the cutting powder 25 is removed from the deep hole 16, there is no damage to the cutting blade 15 and each part of the drilling hole 14, so the drilling hole 14 is directly used for drilling another high-density polyethylene pipe 4. Can be used as many times.

In the above description, the extruding tool 1 shown in FIGS. 1 and 2 is used. However, the present invention is not limited to this. Ordinary bolts may be used instead of the extruder, or other screw rods may be used.

[0015]

According to the first aspect of the present invention, according to the method for removing cutting powder at the time of drilling a polyethylene pipe for water distribution according to the first aspect of the present invention, the drilling of a water pipe such as a high-density polyethylene pipe having a stick is carried out in a forso. It is very easy to remove the swarf that is retained and adhered to the swarf. Further, the extruding tool for removal may have a very simple structure, and can be easily and easily implemented in any construction place where the water faucet is arranged.

[Brief description of the drawings]

FIG. 1 is a plan view of an extruder used in the present invention.

FIG. 2 is a front view as viewed in the direction of arrow A in FIG. 1;

FIG. 3 is an axial cross-sectional view for explaining a method of removing cutting powder in a hoso using the extruding tool shown in FIGS. 1 and 2.

FIG. 4 is an axial cross-sectional view showing a state in which cutting powder in a hoso is being removed.

FIG. 5 is a perspective view showing a cutting powder removed from the inside of the forsaw.

FIG. 6 is an axial cross-sectional view showing a drilling horso for drilling a polyethylene pipe for water distribution.

FIG. 7 is a cross-sectional view for explaining a method of perforating a high-density polyethylene tube using the perforator shown in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Extruder 2 Screw rod part 2a Screw part 2b Tip part 2c Base end part 3 Holding part 4 High-density polyethylene pipe 5 Upper saddle 6 Lower saddle 7 Minute faucet saddle 8 Seal material 9 Minute faucet 10 Water inlet 11 Water inlet 12 On-off valve 13 hole 14 drilling horso 15 cutting blade 16 deep hole 17 groove 18 screw hole 19 horso 20 stop screw 21 guide pipe 22 rotary shaft 23 shank 23a spanner hook 24 helical groove 25 cutting powder 26 screw groove

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Fukui Chitoku 64 Ishizu-Kitacho, Sakai-shi, Osaka Inside Kubota Vinyl Pipe Factory (72) Inventor Hideo Nakagawa 5072 Soshinda, Satte-shi, Saitama Maezawa Hoso Kogyo Co., Ltd. Inside the company (72) Inventor Shinji Ogino 5072 Soshinda, Satte-shi, Saitama Pref.Inside (72) Inventor Ryuichi Tajima 5072 Soshinta, Satte-shi, Saitama Maezawa Hoso Co., Ltd. Inside

Claims (1)

[Claims] When a water distribution polyethylene pipe sandwiched by a water faucet saddle to which a water faucet is screwed is pierced by a piercing horso inserted from a water inlet of the water distribution pipe, the water is supplied to the inside of the piercing horso. A method for removing cutting powder remaining in the drilling hole, the drilling hole has a cutting blade provided on the opening side of the tip, a deep hole and a groove opening on the opening side, and a screw hole communicating with the deep hole. A hollow pipe-shaped horso that forms
A guide pipe fixed around the outer periphery of the holsaw;
A shank that is screwed into the threaded hole of the forsaw and connected to the drive unit, and removes cutting powder generated by the perforation of the polyethylene pipe for water distribution by the cutting blade and stored in the deep hole of the forsaw. In this case, the shank is removed from the holder, the screw portion of the extruder is screwed into the screw hole of the holder, the tip of the extruder contacts the cutting powder, and the screw is further deepened. A method for removing cuttings at the time of drilling a polyethylene pipe for water distribution, wherein the cuttings are extruded and removed by pushing the cuttings into the hole.