KR101552220B1

KR101552220B1 - Apparatus for manufacturing a roll of folded pe lining tube for a non-digging repairing underground pipe line and a roll of folded pe lining tube manufactured by the apparatus

Info

Publication number: KR101552220B1
Application number: KR1020150064265A
Authority: KR
Inventors: 이현상; 강인구; 장예식
Original assignee: 주식회사 사이몬; 유라이닝(주)
Priority date: 2015-05-08
Filing date: 2015-05-08
Publication date: 2015-09-21

Abstract

[0001] The present invention relates to a roll-type polyethylene joining pipe manufacturing apparatus for unrolled tubular ropes and a roll-type polyethylene joining pipe for unguuired pipe ropes which are manufactured by the manufacturing apparatus. More particularly, the present invention relates to a roll- A heating device (H) for heating the joining iron pipe by applying hot air at a high temperature, a tensioner (200) for tensioning the joining iron pipe while pressing the joining iron pipe to a predetermined thickness, and a joining iron pipe And a take-up winder 300 that winds up the windmill P3.

Description

TECHNICAL FIELD [0001] The present invention relates to a roll-type polyethylene joining pipe manufacturing apparatus for unguu- lated pipe ropes and a roll-type polyethylene joining pipe for unguu- lated pipe ro- bles for manufacturing the same. BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] ROLL OF FOLDED PE LINING TUBE MANUFACTURED BY THE APPARATUS}

The present invention relates to an apparatus for manufacturing a roll-type polyethylene joining pipe for unguided pipe ropes, and more particularly to a PE lining pipe having a circular cross-section before a PE (polyethylene, hereinafter referred to as "PE" Shaped joining iron pipe, and is wound in a rolled state in a state of being fixed by a band around the outside of the joining iron pipe.

Non-drilling repair methods are widely used for repairing damaged wrecks in the ground. In the unreinforced pipe repair method, the PE round lining pipe is folded into a U-shape in the ground and inserted into the subducting pipe in the ground. Then, the U-shaped connecting pipe is inflated into a circular pipe by blowing compressed air into the U- Tightly fixed to the inner wall.

A lining pipe (hereinafter referred to as a "connecting pipe") which is folded in a U-shaped section is manufactured by using a folding device of a PE pipe of a circular cross section on the ground. An apparatus for manufacturing such a contact pipe is disclosed in Patent Document 1 below.

In the conventional lining tube folding apparatus disclosed in Patent Document 1, the back surface of the circular tube to be conveyed is bent by a pair of bending support rollers, and the outer side is pressurized by a bending presser provided on the arm pivotally rotating from the opposite side to form a U- Thereby forming a folded shape.

Such a conventional lining pipe tube folding apparatus is required to apply force to the arm directly when the operator presses the pipe with the bending pressurizing lid. Therefore, since the bending degree changes according to the strength of the force applied by the worker, It is difficult to bend.

In addition, since the lining pipe is formed of a PE material, it is difficult to fold it in a U shape by exerting force from the outside, and it is restored by the elastic force of the material even after folding.

In addition, since such a connecting pipe is bulky and difficult to carry, conventionally, a folding device has been disposed at a work site, and a connecting pipe has been molded there and inserted into the wastewater in the ground to repair the pipe. In this way, when the connecting pipe is molded at the site, the folding device occupies the road, which has a disadvantage that it interferes with the passage of vehicles and pedestrians.

KR20-0204739 Y1

Therefore, in order to solve the disadvantages of the prior art joining pipe manufacturing apparatus, the lining pipe having the 'circular cross-section' can be mechanically folded into the U-shaped cross-section welded tube to facilitate the folding work and improve the manufacturing efficiency The present invention is directed to a roll type PE joining pipe manufacturing apparatus capable of manufacturing a joining pipe corresponding to various sizes as a single equipment, and to provide a PE re-joining pipe capable of enhancing the efficiency of equipment .

In order to accomplish the above object, the present invention provides an apparatus for manufacturing a PE re-

A welding machine for pressing the outer wall of the circular tube to pressurize and folding the welding tube into a U-shaped cross-section welding tube, a heater for heating the welding tube by applying hot air at a high temperature, a tensioner for tensioning the welding tube to a constant thickness, And a winder for winding by a connecting pipe (P3)

The winder

Base; A lower frame rotatably supported on the base about an axis;

A drum shaft rotatably supported on a pair of support rods fixed on the lower frame via bearings;

A drum shaft rotation driving means for rotationally driving the drum shaft;

And a winding drum fixedly installed on the drum shaft and rotated by the rotation of the drum shaft and extending in the radial direction from the center so as to wind the armature tube in plural rows and multiple layers to the receiving object, do.

Further, in the present invention,

A fixed frame including a vertical frame and an upper / lower horizontal fixed frame;

A movable frame slidably movable along the upper and lower horizontal frames;

A pressurizing cylinder for moving the movable frame in a direction in which the movable frame approaches or separates from the fixed frame while being stretched or shrunk;

A C-shaped support piece fixed to the vertical frame so as to support the one outer side wall while passing the PE re-circulation pipe in the direction of the central axis, and having an opening at the opposite side wall;

And the outer frame is attached to the movable frame corresponding to the support piece, and presses the outer wall of the circular tube supported by the support piece while entering the support piece through the opening of the support piece in accordance with the movement of the movable frame, A pressing roller for folding and molding the sheet; And

And a pair of fixing rollers for pressing the primary fitting tube in the vertical direction and folding and fixing the primary fitting tube to the secondary folding tube of a constant thickness.

Further, the present invention may further comprise fixing roller interval adjusting means for adjusting the interval of the pair of fixing rollers,

Wherein the fixed roller interval adjusting means comprises:

A feed screw provided along the longitudinal direction of each of the four vertical fixed frames and supported at both ends by a bearing so as to be rotatable about an axis and having double screws formed in opposite directions on the outer periphery;

A feed nut which rotatably supports the fixing rollers and is coupled to the feed screws in a threaded manner so as to adjust the gap of the fixing rollers while approaching or moving away from each other as the feed screw rotates;

And a feed screw rotating means provided at an upper end of each feed screw for rotating the feed screw.

According to the present invention, the supporting piece of the hooking-up machine is made of a lining detachably coupled to the body portion and the body portion, and the lining includes a lining having an inner diameter of any one of a plurality of lining having different inner diameters, As shown in FIG.

According to the present invention, since the lining pipe made of the circular tube is pressed on the 'C' -shaped support piece with the pressurizing roller operated by the hydraulic cylinder on the opposite side to form the contact pipe, it is possible to perform the folding molding operation efficiently And it is possible to form a contact tube of uniform quality. The lining pipe having various diameters and thicknesses can be folded in accordance with the diameter and thickness of the connecting pipe to be folded.

Further, according to the present invention, since the connecting pipe can be rolled up into a roll shape and can be transported to the pipe repair work place, the pipe repair work can be performed even in a small work place.

FIG. 1 is a view showing a stepwise process of manufacturing a round pipe by a joining pipe manufacturing apparatus of the present invention, and FIG.
2 is a layout diagram schematically showing the overall configuration of the joining pipe manufacturing apparatus of the present invention,
Fig. 3 is a front view of a folding iron according to the present invention,
Fig. 4 is a side view of the engaging device of Fig. 3,
5 is a front view of a tensioner in the joining pipe manufacturing apparatus of the present invention,
Figure 6 is a side view of the tensioner of Figure 5,
7 is a side view of a winding machine in a joining pipe manufacturing apparatus of the present invention,
8 is a front view of the winder.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a joining pipe manufacturing apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 schematically shows the shape of each stepped pipe manufactured by folding a circular lining pipe (hereinafter referred to as a "circular pipe") (hereinafter referred to as "P0") as a joining pipe manufacturing apparatus of the present invention into a final roll- 1 (a) is a sectional view of a circular pipe P0 in the section A, and FIG. 1 (b) is a sectional view of a circular pipe P0, Sectional shape of the self-aligning iron pipe P1, and the section C represents a section in which the contact pipe in the state (b) is pressed and fixed to a constant thickness as shown in (c) while passing through the pair of fixing rollers .

2, the joining iron pipe manufacturing apparatus according to the present invention comprises a welding machine 100, a heater H, a tensioner 200, and a winder 300, Respectively.

As shown in FIG. 2, the sorter 100 has a circular pipe P0, which is formed in an extruder (not shown) and is horizontally conveyed, is passed through a C-shaped support piece 110, The opposite outer side wall is pressed by the pressing roller 120 in the state where one outer side wall of the supporting piece 110 is supported on the inner side wall of the supporting piece 110 to be subjected to the first folding as shown in FIG. The iron pipe P1 is passed between a pair of fixing rollers 132 and 132 arranged at regular intervals above and below and is further pressed by a contact iron pipe P2 as shown in Fig.

The heater H is disposed continuously to the sorter 100 and is heated by the hot air supplied through the hot air tube 150 while passing the folded iron pipe P2 folded by the sorter 100 to perform a subsequent process Tensioner 300) so as to be easily deformed.

The tensioner 200 is disposed continuously to the heater H and sandwiches the welded pipe P2 heated by the hot air in the heater H between the pair of endless track type upper and lower conveying units 210 and 220 And is maintained at a thickness corresponding to the distance between the conveying conveyors while being conveyed along the conveying direction of the conveying conveyor in a supported state. The tensioner 200 pulls the circular pipe P0, the contact pipe P1 and the contact pipe P2 in the working direction by feeding the contact pipe P2 in the white arrow direction of FIG.

The winder 300 is wound around a drum 310 after bundling a folding pipe P2, which is folded to a predetermined thickness, through a tensioner 200 to form a band 310. As shown in FIG. 1 (d) (P3).

Hereinafter, the respective constituent devices will be described in detail with reference to respective drawings.

(100):

As shown in the front view of FIG. 3 and the side view of FIG. 4, the folding device 100 includes a fixed frame composed of a vertical frame 101 and an upper / lower horizontal fixed frame 102, And a movable frame 103 which is slidably moved along the movable frame 102 and moves in a direction approaching or separating from the fixed frame in accordance with the expansion and contraction operation of the pressure cylinder 105.

The connecting device 100 presses the one sidewall in the radial direction from the outside while moving the PE material circular pipe P0 horizontally to form a primary welding pipe P1 having a substantially U- , And then a folding mechanism for folding the joining iron pipe P1 to the secondary joining iron pipe P2 of a certain thickness.

As shown in FIGS. 3 to 4, the folding mechanism includes a C-shaped support piece 110 supported by a rear vertical frame 101 with a plurality of support bars 113; A pressing roller 120 attached to the movable vertical frame 103a and configured to move into and out of the supporting piece 110 through the side wall opening portion 110a of the supporting piece 110; Pressure roller operating means for slidingly moving the pressure roller (120); A pair of fixing rollers 131 and 132 for pressing the U-shaped primary fitting pipe P1 in the vertical direction and fixing the U-shaped primary fitting pipe P1 by a secondary fitting pipe P2 of a constant thickness; And fixing roller interval adjusting means for adjusting the interval of the pair of fixing rollers 131 and 132.

The supporting piece 110 has one side wall fixed to the rear vertical fixing frame 101 and the other side wall is formed with an opening 110a for allowing the pressing roller 120 to move in and out along the longitudinal direction . The support piece 110 may include a body portion 111 and a lining 112 detachably coupled to the body portion. In this case, the lining 112 may be prepared as a plurality of lining having various diameters It can be replaced by a lining of a suitable diameter according to the diameter of the round pipe to be folded.

The pressure roller operating means includes a plurality of pressure rollers 120 fixed to the upper and lower horizontal fixing frames 102 so as to be slidable with respect to the upper and lower horizontal fixing frames 102 of the fixing frames, The pressing roller 120 is moved toward the supporting piece 110 as the one end is connected to the fixed frame and the other end is connected to the movable frame 103 to expand and contract, And a pressing cylinder 105 which moves in a direction away from the supporting piece 110. [

As shown in Figs. 3 and 4, the fixing roller gap adjusting means is provided along the longitudinal direction of each of the four vertical fixing frames 101, and is supported by bearings at both ends so as to be rotatable about an axis, A feed screw 134 formed with a double screw in the opposite direction; Each of the fixing rollers 131 and 132 is rotatably supported and is coupled to the feed screw 134 in a threaded manner so that the feed screw 134 approaches or moves away from the feed screw 134 to adjust the gap of the fixing rollers 131 and 132 Transfer nuts 136 and 137; A sprocket SP coupled to an upper end of each of the feed screws 134; A chain (C) installed in the sprockets (SP) to simultaneously rotate the four sprockets (SP); And a motor (M) for driving the sprocket.

5, when the motor M is rotated to move the chain C in either direction, the four sprockets SP engaged with the chain C A pair of feed nuts 136 and 137 connected to the feed screw 134 in a threaded manner are moved toward and away from each other while the feed screw 134 is rotated in one direction The fixing rollers 131 and 132 are moved toward or away from each other to adjust the interval therebetween.

The connecting pipe passes through the gap between the fixing rollers 131 and 132 adjusted as described above, and is fixed to a thickness corresponding to the interval between the fixing rollers 131 and 132. [

Heater (H):

The heater H is a high temperature hot air blown from a plurality of hot air pipes 150 arranged on the upper and lower sides of the secondary fitting pipe P2 moving from the drawing machine 100 to the tensioner 200, The connecting pipe (P2) is heated and softened. As a result, the secondary fitting pipe P2 having passed through the heater H is smoothly folded by the subsequent tensioning machine 200.

Tensioner 200:

Next, the tensioner 200 is folded in a U-shaped cross section in the folding and folding machine 100, and then the secondary hooking pipe P2 heated by hot hot air in the heater H is folded by a pair of endless track conveyors The guide pipe P 2 is fixed with a band (not shown) while fixing the guide pipe P 2 to a predetermined thickness suitable for fixation while moving the guide pipe S while continuously pulling it between the belts 210 and 220.

5 and 6, the tensioner 200 includes a frame assembly composed of a vertical frame 201 and a horizontal frame 202, and includes a pair of longitudinal In the frames 201, a pair of endless track-type conveyor belts 210 and 220 are horizontally movable up and down along the longitudinal direction of the vertical frame 201.

In other words, each vertical frame 201 is provided with a feed screw thread 203 having a double screw in which screw directions are reversed from each other in the longitudinal direction, and each of the feed screw rods 203 is mounted on the upper horizontal frame 202 And is rotatably installed by a motor (M) and a chain (C) -sprocket (SP). The feed screws 205 and 206 are respectively engaged with the double screw threads of the feed screw rod 203 so that they move toward or away from each other along the feed screw 203 as the feed screw rod 203 rotates, The conveying nuts 205 and 206 are coupled to both ends of the conveyor belt to horizontally move the conveyor belts 210 and 220 up and down.

Therefore, the tensioner 200 smoothly fixes the secondary welded pipe P2 while moving the secondary welded pipe between the upper and lower conveyor belts 210 and 220 moving in an endless track manner.

The winder (300)

The winder 300 includes a lower frame 303 pivotally supported about an axis 302 on a base 301, as shown in detail in the front view of FIG. 7 and the side view of FIG. A pair of supports 304A and 304B are fixedly mounted on the lower frame 303. The supports 304A and 304B rotatably support the drum shaft 306 via bearings 305a and 305b. The drum shaft 306 is rotatably driven by a chain (C) connection with the motor M by having a sprocket SP on an axis.

The drum shaft 306 holds and holds the winding drum 310, and the winding drum 310 has a plurality of pedestals 311 extending radially from the center.

The winding machine 300 described above is constructed by winding a warp tube P2 which has passed through a tensioner 200 and winding up the winding drum 310 with a plurality of layers in a winding drum 310 and winding the same, (P3).

Hereinafter, the operation of the joining pipe manufacturing apparatus of the present invention will be described with reference to the drawings.

The circular pipe P0, which is extruded and conveyed from an extrusion device (not shown), is guided to the folding device 100 of the folding device of the present invention.

The circular pipe P0 is passed through the inside of the lining 112 inside the C-shaped support piece 110 of the drawing machine 100, as shown in Figs. Then, when the pressurizing cylinder 105 is contracted, the upper and lower movable frames 103 move toward the fixed frame along the upper / lower horizontal frame 102. The pressure roller 120 presses the other outer wall of the circular pipe P0 supported by the one outer wall of the lining 112 and folds the other outer wall of the circular pipe P0 so that the pressure roller 120 continues to contract, As shown in FIG. 4, the circular pipe P0 is further advanced toward the contact pipe, and is folded in the form of the first contact pipe P1.

As shown in FIG. 3, the first folding pipe P1 folded and folded is passed through a pair of fixing rollers 131 and 132 provided on the vertical fixing frame 101 at the end of the folding machine 100, And is folded into a thick second connecting pipe (P2).

2 and 5 to 6, the second pair of conveyor belts 210 and 220 of the tensioner 200 are heated and softened by the heater H, And is tensioned by the conveyor belts 210 and 220 in a squeezed state.

The circular pipe P0 is manufactured as a welded pipe P2 having a predetermined thickness and then wound on the winding drum 310 of the winder 300. [ At this time, depending on the length of the fitting pipe P2, the fitting pipe P2 is wound on the winding drum 310 in a multiple layer structure, wound in a roll shape as shown in Fig. 1 (d) And is transported to the repair work site of the un-drilled pipe in the state.

After separating the rolled contact pipe P3 wound in the winder 300 from the winding drum, it is transported to the maintenance work place of the pipe in this state, and is unloaded from the roll during the pipe maintenance work, To expand it in the form of a circular tube and to close it to the inner wall of the throat tube. The lining work for repairing such pipes is the same as that of ordinary work.

When the circular tube having a relatively large diameter is to be folded, the folding method is the same as that described above. However, since the diameter of the folded circular tube is large, After replacing the lining of the inner diameter, fold it in the folding machine. In this case, since the thickness after the primary folding is increased by the pressure roller 120, the interval between the fixing rollers 131 and 132 must be increased. At this time, the interval between the fixing rollers 131 and 132, And increases the number of the connecting pipes after the folding to correspond to the thickness of the secondary folding. Also, the distance between the pair of conveyor belts 210 and 220 of the tensioner 200 can be increased by widening the interval between the conveyor belts by driving the motor M in the same manner as the interval adjustment of the fixing rollers 131 and 132.

100: Folding device 101: Vertical fixing frame
102: upper / lower fixed horizontal frame 103: movable frame
103a: movable vertical frame 104: roller
105: pressure cylinder 110: C-
111: supporting body body 112: lining
113: support bar 120: pressure roller
M: Motor SP: Sprocket
C: Chain 131, 132: Fixing roller
134: feed screw 136, 137: feed nut
200: tensioner 201: vertical frame
202: horizontal frame 203:
205, 206: Feed nut 210, 220: Conveyor belt
300: Winder 301: Base
302: Axis 303: Lower frame
304A, 304B: Support bases 305a, 305b: Bearings
306: drum shaft 310: winding drum
311: Stand

Claims

An apparatus for producing a roll-type polyethylene joining pipe for unguu- lated pipe rope receiving,
The joining pipe manufacturing apparatus includes:
(100) for pressing one outer wall of the circular pipe (P0) and folding the outer wall of the circular pipe (P0) by a U-shaped joining section tube, a heater (H) for heating the joining iron tube by applying hot air at a high temperature, A tensioning machine 200 for tensioning, and a winder 300 for winding up the contact pipe through a roll-type contact pipe P3,
The winder 300 includes:
A base 301; A lower frame 303 pivotally supported on the base 301 about an axis 302;
A drum shaft 306 rotatably supported by bearings 305a and 305b on a pair of supports 304A and 304B fixed on the lower frame 303;
A drum shaft rotation driving means for rotationally driving the drum shaft 306;
And a plurality of pedestals 311 fixedly installed on the drum shaft 306 and rotated by the rotation of the drum shaft and extending in the radial direction from the center so that the arc tube 311 is wound on the pedestal 311 in a plurality of rows, And a take-up drum (310) for taking up the untaxed pipe rope.

The method according to claim 1,
The attaching /
A fixed frame made up of a vertical frame 101 and an upper / lower horizontal fixed frame 102;
A movable frame 103 slidably movable along the upper and lower horizontal frames 102;
A pressurizing cylinder (105) for moving the movable frame (103) in a direction in which the movable frame (103) approaches or separates from the fixed frame while expanding and contracting;
A C-shaped support piece 110 fixed to the vertical frame 101 so as to support one of the outer side walls while passing the PE re-circulation pipe P0 in the central axis direction and having an opening 110a on the opposite side wall;
The movable frame 103 is attached to the movable frame 103 corresponding to the support piece 110 and moves into the support piece 110 through the opening 110a of the support piece 110 according to the movement of the movable frame 103 A pressurizing roller 120 for pressurizing the outer wall of the circular pipe P0 supported by the support piece 110 and folding and forming the outer wall of the circular pipe P0 into a primary arc tube P1 having a U-shaped section; And
And a pair of fixing rollers (131, 132) for pressurizing the primary fitting pipe (P1) in the vertical direction and folding and fixing the primary fitting pipe (P1) by a secondary fitting pipe (P2) of a constant thickness. Equipment for manufacturing polyethylene tie pipes.

3. The method of claim 2,
Further comprising fixing roller interval adjusting means for adjusting the interval of the pair of fixing rollers (131, 132)
Wherein the fixed roller interval adjusting means comprises:
A feed screw 134 provided along the longitudinal direction of each of the four vertical fixing frames 101 and supported at both ends by bearings so as to be rotatable about an axis and having double screws formed in opposite directions on the outer periphery;
Each of the fixing rollers 131 and 132 is rotatably supported and is coupled to the feed screw 134 in a threaded manner so that the feed screw 134 approaches or moves away from the feed screw 134 to adjust the gap of the fixing rollers 131 and 132 Transfer nuts 136 and 137;
And a feed screw rotating means provided at an upper end of each feed screw to rotate the feed screw.

3. The method of claim 2,
The supporting piece 110 is composed of a body part 111 and a lining 112 detachably coupled to the inside of the body part and the lining 112 has an inner diameter of one of a plurality of lining having different inner diameters Wherein the lining is replaceable with a non-digging pipe.

A roll-type polyethylene joist pipe for unguided pipe ropes manufactured by the joining pipe manufacturing apparatus of any one of claims 1 to 4.