CN1231345C

CN1231345C - Polythene pressure pipe, its forming method and former

Info

Publication number: CN1231345C
Application number: CN 01104579
Authority: CN
Inventors: 郑寅善
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-15
Filing date: 2001-02-15
Publication date: 2005-12-14
Anticipated expiration: 2021-02-15
Also published as: CN1369367A

Abstract

The present invention mainly aims to provide a pressure pipe developed from polyethylene intertexture, a forming method thereof and a forming machine. The pressure pipe is mainly characterized in that polyethylene intertexture and waterproof films are glued with each other, the upper surface and the lower surface of the polyethylene intertexture form waterproof films, and at least one surface of the upper waterproof film and the lower waterproof film is glued with a polyethylene protecting layer in an overlapped mode so as to form a basic structure of base cloth. When the base cloth is formed, the protecting layer is arranged at the inner surface, and both end surfaces where the base cloth is butted are glued with each other in a mutually overlapped mode. The pressure pipe has the advantages of small thickness, processing cost saving and simple forming method, and can enhance the bending and the productivity.

Description

Polythene pressure pipe and forming method thereof and make-up machine

Technical field

The present invention relates generally to utilize pressure pipe and the forming method and the make-up machine of polyethylene mixture fabric exploitation.Because the main material of pressure pipe of the present invention is a polyethylene mixture fabric, so its thickness is thin significantly and its internal structure has compression strength preferably, for the gas or the peculiar effect of liquid of ejection high pressure, thereby saves processing cost, improves flexibility.Forming method of the present invention is simple, easy, can strengthen productivity ratio, obtains the surplus value.

Background technology

Known to general, the main application of pressure pipe is that the liquid of high pressure or gas are transported to fixed place, therefore needs the condition of resistance to pressure and bendability.

In order to satisfy such demand, the present inventor once advocated the structure technology that comprises multiple lining in fibrage.According to the general pressure pipe that former technical method is made, its internal structure is made up of first lining, second lining and the 3rd lining, and the material of its lining uses rubber or polyethylene.Its method for making be on the surface of first lining in conjunction with first fibrage, on first fiber layer surface again in conjunction with second lining.After the same method, on the surface of second lining in conjunction with second fibrage, on the second fibrolaminar surface in conjunction with the 3rd lining.Wherein first fibrage and second fibrage formerly are compiled into and have the just use later on of certain density state.Utilize the heat treatment process of steam or heating, first fibrage and the second fibrolaminar bottom will be in conjunction with the surfaces of first lining and second lining.Second lining and the 3rd lining will be combined on the first above-mentioned fibrage and the second fibrolaminar surface.

But, the pressure pipe of making according to above-mentioned prior art, because its first lining, the 3rd lining are made of thicker rubber or polyethylene, add first fibrage and second fibrage, to between every lining, make the thickness of whole pressure pipe promote, thereby raise the cost, reduce flexibility, and its forming method is also complicated, causes productivity ratio to reduce.

Summary of the invention

The present invention is the problem made from above-mentioned prior art in order to solve that pressure pipe comprised.Main purpose of the present invention provides pressure pipe and forming method and the make-up machine that utilizes the polyethylene mixture fabric exploitation.The thickness of this pressure pipe is thin significantly, and its internal structure has compression strength preferably, for the gas or the peculiar effect of liquid of ejection high pressure.And can save processing cost, improve flexibility, and its forming method is also simple, easy, can boost productivity, and obtains the surplus value.

Secondary objective of the present invention provides pressure pipe and forming method and the make-up machine that utilizes the polyethylene mixture fabric exploitation, makes the pipe that is made into keep uniform bonding plane.The pressure pipe of making so not only improves the reliability of quality, and promotes its life-span degree.

When generally constituting the base cloth heartwood with polyethylene mixture fabric, the seepage phenomenon of leaking, leaking gas among its tiny hole takes place easily.Other purpose of the present invention provides pressure pipe and forming method and its make-up machine, can stop such phenomenon thus, improves the reliability of quality.

The objective of the invention is to be achieved through the following technical solutions, a kind of pressure pipe is provided, wherein, polyethylene mixture fabric and waterproof membrane are together adhered to one another, the top and bottom of polyethylene mixture fabric all form membrane waterproofing thus, it is one side and the overlapping bonding of polyethylene protective layer at least among the membrane waterproofing up and down, forms base cloth; During with the base cloth moulding, protective layer is placed in medial surface, forms die, and the two ends of base cloth butt joint overlap each other by adhesive and bond together.

In described pressure pipe; above-mentioned base cloth takes turns overlapping bonding together mutually by multilaminar polyethylene intertexture and multilayer flashing film; form its surface, both sides thus with multiple lining that membrane waterproofing was constituted; overlapping bonding polyethylene protective layer on the surface of multiple lining is in order to form the inner surface of base cloth.

In described pressure pipe, above-mentioned base cloth is made up of a plurality of linings, bonds together with waterproof membrane is overlapping respectively on the both sides of each polyethylene mixture fabric; And between its each lining, together adhered to one another thus with the waterproof membrane making coatings, and on its surface, with the overlapping bonding of polyethylene protective layer.

In addition, provide a kind of pressure pipe, described pressure pipe internal structure is made up of first lining, second lining and the 3rd lining; It comprises: among the top and bottom at least one side in case first polyethylene mixture fabric of moisture film making coatings, with the two ends of its breadth along first bonding plane by adhesive first lining that forms adhered to one another together; Among the top and bottom at least one side in case second polyethylene mixture fabric of moisture film making coatings, with the two ends of its breadth along second bonding plane by adhesive a plurality of second linings that form and be bonded in the first lining surface adhered to one another together.

In described pressure pipe, the position of first bonding plane of the first above-mentioned lining and second bonding plane of second lining along the circumferencial direction of pressure pipe apart from one another by.

In described pressure pipe,, smear along its length direction with adhesive in the place that the first above-mentioned lining and second lining overlap each other.

A kind of pressure pipe is provided, and it is included among the top and bottom at least one side in case first polyethylene mixture fabric of moisture film making coatings, in order to making base cloth, and, the two ends of base cloth breadth are overlapped each other, form the pipe shape; On the polyethylene mixture fabric end face that the base cloth overlapped part is exposed, smear adhesive, form the waterproof end face structure, cover the space of polyethylene mixture fabric inside thus, the seepage phenomenon takes place on end face and its surface in order to stop in exposing of sleeve pipe.

In described pressure pipe, the adhesive of smearing on overlapped part has viscosity characteristic low and that bond easily, is used for covering on the end face that exposes, and forms adhesive coating thus.

In described pressure pipe, the adhesive of smearing on overlapped part is the lower material of viscosity; When this adhesive overlapped each other in the both ends of the surface of base cloth, infiltration covered the space on the intertexture thus on polyethylene mixture fabric.

In described pressure pipe, in above-mentioned waterproof end face, the adhesive of being smeared on the overlapped part at base cloth two ends is pushed down with backer roll, make adhesive be diffused into the outside of overlapped part thus, cover its end face and form the waterproof end face.

In described pressure pipe, the pressurized roll-in of adhesive of being smeared on the overlapped part of base cloth two ends is lived, and is diffused into the outside of overlapped part thus, covers its end face and forms the waterproof end face, it is the binder film structure with certain viscosity, will cover the end face that exposes of pressure pipe.

In described pressure pipe, overlapping end face to be folded and afterwards form the end face that folds, and, keep waterproof effect thus with the waterproof membrane at polyethylene mixture fabric medial surface place in order to adhered to one another with other end face.

A kind of pressure pipe forming method is provided, and this forming method comprises; Among the top and bottom at least the one side in case first polyethylene mixture fabric of moisture film making coatings will make the two ends of its breadth overlap to form the formative stage of pipe shape by first stock guide; In the both ends of the surface of first polyethylene mixture fabric, smear the stage of adhesive continuously; First polyethylene mixture fabric is directed to the cylinder roller, makes on the surface that is wound on the cylinder roller, and the two ends of the first polyethylene mixture fabric breadth are together adhered to one another, form the stage of first bonding plane.

In described method, next step stage that forms first bonding plane comprises; First polyethylene mixture fabric is wound on and advances on the surface of cylinder roller when mobile, a plurality of places in its circumferencial direction outside, the stage that adhesive is smeared continuously; Its one side or two sides will be by second stock guides with second polyethylene mixture fabric of waterproof membrane making coatings, and its two ends are bent to form overlapped part gradually thus, so that present the stage of pipe shape; Overlapped part is smeared the adhesive stage at the breadth two ends of second polyethylene mixture fabric; First polyethylene mixture fabric is wound on and advances on the surface of cylinder roller when mobile, guide second polyethylene mixture fabric to be wound on first polyethylene mixture fabric, thus the stage adhered to one another on a plurality of places of smearing adhesive on the circumferencial direction outside of first polyethylene mixture fabric; Second polyethylene mixture fabric and first polyethylene mixture fabric are wound on and advance on the surface of cylinder roller when mobile, and the breadth two ends of second polyethylene mixture fabric are together adhered to one another, form the stage of second bonding plane.

In described method, add a pair of backer roll, being used for exerting pressure on pressure pipe makes its smaller volume, and thus compressed pressure pipe is wound on that the backer roll rear installed cloth beam on.

In described method, in order to watch out for first bonding plane and second bonding plane overlaps each other together, the position of first stock guide, second stock guide be designed to along the circumferencial direction of cylinder roller apart from one another by.

A kind of pressure pipe forming method is provided, and it will be wound on base cloth on the cloth beam, that have smooth surface and be processed into pipe shape sleeve pipe, and this method comprises; Make the base cloth of smooth surface carry out unidirectional mobile delivery phase of advancing; Make the base cloth that transports reduce its bending radius gradually, present the pipe shape thus, and form the formative stage partly that overlaps each other; On the base cloth overlapped part that transports, smear adhesive, simultaneously overlapped part exerted pressure, make the adhesive of being smeared can flow out to the base cloth both ends in conjunction with the stage.

In described method, smear adhesive and when exerting pressure,, make the adhesive that flows out to outside, base cloth both ends in time form the additional phase of curdled appearance from the internal spray cold air of sleeve pipe.

A kind of pressure pipe make-up machine is provided, and it will be wound on base cloth on the cloth beam, that have smooth surface and be processed into pipe shape sleeve pipe, and this make-up machine comprises; The cloth beam and the conveying device of being installed in make-up machine the place ahead, the base cloth that is wound in cloth beam in order to guiding advances mobile under stable status; The importing plate of installing at the conveying device rear is used so that base cloth forms crooked state gradually when advancing; On the moulding board, along the moulding bearing that vertical direction is installed, it and U type ditch link together and process continuously; The shaped device of being installed on the moulding bearing makes through importing the next base cloth of plate transportation and is bent to form overlapped part gradually; The cylinder roller of on the moulding bearing, being installed, its position and U type ditch with and shaped device maintain a certain distance; The nozzle that the make-up machine rear is installed is in order to smear adhesive continuously on the base cloth overlapped part; And a pair of pressue device of on the top and bottom of cylinder roller, being installed, in order to exert pressure smearing on the overlapped part of adhesive, they are bonded together.

In described make-up machine, the base cloth importing plate that forms crooked state when mobile gradually that advances is formed molding structure by U type ditch, and utilize the molding structure of O type ditch that the base cloth that transports is exerted pressure from the top, the bending machining moulding is carried out in past inside.

In described make-up machine, above-mentioned make-up machine also comprises; First shaping area of support cylinder roller under angular structure; Facing to second shaping area that the cylinder roller is installed to one section part of moulding bearing protrusion, thus one section part of base cloth is exerted pressure, make it toward interior curve; The 3rd shaping area facing to the whole branch that protrude to the moulding bearing from the cylinder roller are installed does not also have the remaining part of processing to exert pressure to base cloth thus, makes to form overlapped part.

In described make-up machine, above-mentioned cylinder roller is provided with at the shaped device rear and cuts on the plate, so that make the overlapped part of base cloth can keep the state that spreads out before smearing adhesive.

In described make-up machine, above-mentioned backer roll comprises top backer roll and bottom backer roll, and wherein, the top backer roll is installed in the cylinder roller and keeps in certain distance, the vertically set rotating shaft, and the bottom backer roll is installed on cylinder roller rear, in the face of the top backer roll.

In described make-up machine, the above-mentioned top backer roll and the edge of bottom backer roll are formed with chase respectively, adhere on the backer roll in order to watch out for the adhesive that spills from the overlapped part of base cloth.

In described make-up machine, rear at the cylinder roller, also add cold air ascending pipe and cold-air drainage pipe by the connection place of the bottom backer roll that is supported with the backer roll bracket, use so that the adhesive that base cloth overlapped part scope spills outward cools off the formation curdled appearance immediately.

In described make-up machine, the rear that the backer roll bracket is installed on the cylinder roller also is provided with chase, in order to the drainage of guiding cold air, makes that adhesive continues to keep curdled appearance, and its position should be orthogonal with the chase on the backer roll of bottom.

Advantage of the present invention is, structure as described above, waterproof membrane and polyethylene mixture fabric base cloth moulding pressure pipe adhered to one another will be utilized, compare with other pressure pipes that a plurality of rubber linings and a plurality of fibrage form thus for the gas or the peculiar effect of liquid that spray high pressure, and with existing its internal structure, its thickness is thin significantly, thereby saving processing cost, can improve flexibility again, its forming method is simply easy simultaneously, strengthens its production efficiency.

Secondly, according to make-up machine of the present invention with and the best approach, the base cloth of smooth surface is processed into the pipe shape, and smears adhesive in its joint, exert pressure again, be processed to form pipe continuously.In the middle of such process, adhesive can spread upon the joint equably, watches out for the break-off of adhesive surface thus, and the pressure pipe of making so not only improves the reliability of quality, and promotes its life-span degree.

In addition, on overlapping end face, smear adhesive, so that cover the polyethylene mixture fabric that is exposed on its end face with the both sides of the pressure pipe that polyethylene mixture fabric was constituted of waterproof membrane making coatings.Such structure can stop pressure pipe expose end face or lip-deep seepage phenomenon, thereby can improve the reliability of quality, promote its life-span degree.

In described make-up machine, add increased pressure board at the rear of above-mentioned a pair of backer roll, the overlapped part of being smeared adhesive is exerted pressure, watch out on overlapped part, producing concavo-convex phenomenon among the course of conveying.

Description of drawings

By can more being expressly understood above-mentioned purpose, characteristics and advantage with other of the present invention below in conjunction with the detailed description that accompanying drawing carried out, and on accompanying drawing, use symbol, understand in order to helping.

Fig. 1 is the employed base fabric structure figure of pressure pipe that utilizes the polyethylene mixture fabric exploitation according to the present invention, in order to the example of explanation pressing section;

Fig. 2 is the perspective view of the pressure pipe made with the base cloth of Fig. 1;

Fig. 3 is the structure chart that utilizes the employed base cloth of pressure pipe of polyethylene mixture fabric exploitation according to the present invention, in order to another example of explanation pressing section;

Fig. 4 is the perspective view of the pressure pipe made with the base cloth of Fig. 3;

Fig. 5 is the sectional side view that utilizes the employed base cloth of pressure pipe of polyethylene mixture fabric exploitation according to the present invention, in order to another example of explanation pressing section;

Fig. 6 is the perspective view of the pressure pipe made with the base cloth of Fig. 5;

Fig. 7 is the perspective view of the pressure pipe make-up machine developed according to the present invention, in order to the example of explanation make-up machine;

Fig. 8 is the perspective view that utilizes the pressure pipe of polyethylene mixture fabric exploitation according to the present invention, in order to another example of explanation pressing section;

Fig. 9 is the profile of Fig. 8;

Figure 10 is the perspective view of the pressure pipe make-up machine developed according to the present invention, in order to another example of explanation make-up machine;

Figure 11 is the side view that carries out pressing section according to Figure 10;

Figure 12 is the perspective view of the pressure pipe make-up machine developed according to the present invention, in order to the preferred construction of this make-up machine to be described;

Figure 13 is the side view of Figure 12;

Figure 14 is the vertical view of Figure 12;

Figure 15 is the expansion profile along the I-I line among Figure 14;

Figure 16 is the expansion profile along the II-II line among Figure 14;

Figure 17 is the expansion profile along the III-III line among Figure 14;

Figure 18 is the expansion profile along the IV-IV line among Figure 14;

Figure 19 utilizes the part of the employed base cloth of pressure pipe of polyethylene mixture fabric exploitation to enlarge profile according to the present invention, in order to another example of explanation pressing section;

Figure 20 is the profilograph of Figure 19, in order to show its bonding plane;

Figure 21 a is the partial section view with waterproof membrane structure of adhesive cortex;

Figure 21 b smears after the adhesive, the partial section view of the waterproof membrane structure that closely bonds;

Figure 21 c is after smearing adhesive on the overlapped part, exerts pressure again, compressed thus waterproof membrane structure partial section view; And

Figure 21 d is the waterproof membrane structure partial section view of carrying out the burst reason on the two ends of medial surface.

The specific embodiment

Fig. 1 and Fig. 2 have shown when utilizing polyethylene mixture fabric moulding pressure pipe according to the present invention, its employed base cloth and the pressure pipe of making thus.As shown in scheming to go up, will constitute base cloth by polyethylene mixture fabric according to the pressure pipe 10 that the present invention developed, after its both ends of the surface bond together mutually, be processed into the pipe shape.Its employed base cloth, overlapping in conjunction with made in the top and bottom of polyethylene mixture fabric 13,

multiple lining

12 and 14 with the polyethylene protective layer.

Above-mentioned

multiple lining

12 and 14 structure, with polyethylene mixture fabric 13 and

membrane waterproofing

12 and 14 mutually in turn stack form, it is all formed with waterproof membrane on two surfaces up and down, prevents that polyethylene mixture fabric 13 from exposing to the outside.

Making lining 12 and at 14 o'clock, polyethylene mixture fabric 13 has higher fusing point than membrane waterproofing 12 and 14, makes polyethylene mixture fabric 13 and

membrane waterproofing

12 and 14 combine closely mutually thus.As mentioned above, the reason that its fusing point is different is mainly and watches out for when fusing point is identical, is easy to generate concavo-convex phenomenon in its bonding place.Therefore, the polyethylene protective layer fusing point of overlapping combination on the surface of membrane waterproofing should design than membrane waterproofing 12 height a bit, makes polyethylene protective layer 11 can combine closely on membrane waterproofing 12.

When the base cloth that constitutes with as above said method is made pressure pipe, the two ends of base cloth butt joint are overlapped each other in conjunction with regard to moulding pipe shape, and design is placed in medial surface with the polyethylene protective layer and form die.Such structure makes pressure pipe have firmness, and liquid or gas can be kept its ejection pressure by it when inner.In order to promote the firmness of pressure pipe, except waterproof membrane 12, can also on outermost waterproof membrane 14, add and have than waterproof membrane 14 more dystectic polyethylene protective layers.

Fig. 3 is the structure chart that utilizes the employed base cloth of pressure pipe of polyethylene mixture fabric exploitation according to the present invention, and in order to another example of explanation pressing section, Fig. 4 is the perspective view of the pressure pipe made with the base cloth of Fig. 3.As shown in scheming to go up, constitute and overlappingly on the surface of base cloth by

polyethylene mixture fabric

23 and 25, multiple lining 22-26 of high-voltage tube 20 constituted in conjunction with polyethylene protective layer 21.The structure of above-mentioned multiple lining 22-26 by

polyethylene mixture fabric

23 and 25 and

waterproof membrane

22,24 and 26 overlap each other and form, and its two end surfaces all is

waterproof membrane

22 and 26, exposes to the outside so that prevent

polyethylene mixture fabric

23 and 25.

When making multiple lining 22-26,

polyethylene mixture fabric

23 and 25 has higher fusing point than

waterproof membrane

22,24 and 26, makes

polyethylene mixture fabric

23 and 25 can combine closely on

membrane waterproofing

22,24 and 26 thus.And, on the surface of waterproof membrane 22 the polyethylene protective layer 21 of overlapping combination, its fusing point should design than waterproof membrane 22 height a bit, and polyethylene protective layer 21 can be combined closely on membrane waterproofing 22.

When the base cloth that constitutes with as above said method is made pressure pipe 20, the two ends of base cloth butt joint are overlapped each other be combined into the pipe shape, and polyethylene protective layer 21 is placed in medial surface to form die.Such structure makes pressure pipe 20 have firmness, when liquid or gas are inner by it, can keep its ejection pressure.In order to promote the firmness of pressure pipe 20,, also can on outermost waterproof membrane 26, add and have than waterproof membrane 26 more dystectic polyethylene protective layers except waterproof membrane 22.

Fig. 5 is the sectional side view that utilizes the employed base cloth of pressure pipe of polyethylene mixture fabric exploitation according to the present invention, in order to another example of explanation pressing section.Fig. 6 is the perspective view that utilizes the pressure pipe that the base cloth among Fig. 5 makes.

As shown in scheming to go up, according to the pressure pipe 30 that the present invention developed, its structure by the multiple lining 32-36 and the membrane waterproofing 34 that comprise polyethylene mixture fabric overlap each other together, the polyethylene protective layer 38 that also bonds in its surface constituted.

Each lining 32-36 overlaps each other with the two ends of

polyethylene mixture fabric

32b and 36b and

waterproof membrane

32a, 32c, 36a and 36c and forms.At this moment, its

waterproof membrane

32a, 32c, 36a and 36c fusing point should design lowlyer than

polyethylene mixture fabric

32b and 36b, make each joint to be closely linked.

The fusing point of membrane waterproofing 34 should design than the waterproof membrane 32c that connects and 36a height a bit between the lining 32-36, makes the membrane waterproofing of arranging between each lining 32-36 34 can be closely linked mutually.

With the surface of membrane waterproofing 34 lining 32-36 adhered to one another, just the polyethylene protective layer 38 of overlapping combination has the fusing point higher than waterproof membrane 36c on the surface of waterproof membrane 36c, makes its polyethylene protective layer 38 can combine closely on waterproof membrane 36c thus.

When the base cloth that constitutes with above said method is made pressure pipe 30, the two ends of base cloth butt joint are overlapped each other be combined into the pipe shape, and polyethylene protective layer 38 is placed in medial surface to form die.Such structure makes pressure pipe 30 have firmness, when liquid or gas are inner by it, can keep its ejection pressure.In order to promote the firmness of pressure pipe 30, except the waterproof membrane 36c, also can on outermost waterproof membrane 32a, add and have more dystectic polyethylene protective layer than waterproof membrane 32a.

Fig. 7 is the perspective view according to the pressure pipe make-up machine that the present invention developed, in order to the example of explanation make-up machine.As shown in scheming to go up, comprise cylinder roller 40 according to the pressure pipe make-up machine that the present invention developed.The cloth beam 41 that install in the place ahead of cylinder roller 40 is the equipment in order to continuous supply base cloth.The base cloth that the stock guide 41a that install cylinder roller 40 belows is supplied with in order to guiding cloth beam 41 is bent to form overlapped part gradually with its two ends.

A nozzle 42 of installing near overlapped part spreads upon base cloth two ends overlapped part with adhesive.The overlapped part at its breadth two ends is smeared after the adhesive, base cloth will be wound on advance on the cylinder roller 40 mobile.

A backer roll 43 of installing near cylinder roller 40 anterior position adds the base cloth overlapped part and is stacked on the cylinder roller 40, makes to be closely linked mutually.In stage through such, have multiple in-built

polythene pressure pipe

10,20 or 30 and can finish its moulding.

In addition, a pair of backer roll 44 is installed in cylinder roller 40 rears, maintains a certain distance arranged vertical mutually.In order at the pressure pipe 10,20 that transports along cylinder roller 40 and 30 by between the backer roll 44 time, exert pressure make that its volume-diminished, compressed thus

pressure pipe

10,20 or 30 be wound on that backer roll 44 rears install the cloth beam (not shown) on.So just can easily store and transport pressure pipe.

Fig. 8 is the perspective view that utilizes the pressure pipe that polyethylene mixture fabric develops according to the present invention, and in order to another example of explanation pressing section, Fig. 9 is the profile of Fig. 8.

As shown in scheming to go up, form by first lining 51 and second lining 52 according to the pressure pipe 50 that the present invention developed.Its first lining 51 and second lining 52 utilize the first polyethylene mixture fabric 51b and the second polyethylene mixture fabric 52b to constitute respectively.Say again, in the top and bottom of the first polyethylene mixture fabric 51b and the second polyethylene mixture fabric 52b, with

waterproof membrane

51a, 51c, 52a and 52c making coatings.

The breadth two ends of the breadth two ends of the first polyethylene mixture fabric 51b and the second polyethylene mixture fabric 52b are together adhered to one another, form first bonding plane 53 and second bonding plane 54 respectively.At this moment, what the bottom of second lining 52 was firm is bonded on first lining, 51 surfaces, comes off mutually so as not to first lining 51 and second lining 52 thus.

Secondly, when making pressure pipe,, therefore design its position with circumferencial direction along pressure pipe for first bonding plane 53 of watching out for first lining 51 overlaps each other together with second bonding plane 54 of second lining 52, mutual across certain distance.Can watch out for the problem of the compression strength reduction that on first bonding plane 53 or second bonding plane 54, causes pressure pipe 50 thus.

According to best mode of the present invention, the position of first bonding plane 53 and second bonding plane 54 is spent apart from one another by 180 along the circumferencial direction of pressure pipe.

In addition, each above-mentioned

lining

51 and 52 structure are all formed with the polyethylene mixture fabric of stack waterproof membrane coating on its two ends.But, have only a pressure pipe can select its structure among as above said each

pressure pipe

10,20 and 30, and form each lining 51 and at 52 o'clock, can add the polyethylene protective layer on the one side at least among the top and bottom.

As mentioned above, with the pressure pipe that two linings are formed, the make-up machine shown in utilizing on Figure 10 and Figure 11 is made.

As shown on Figure 10 and Figure 11, comprise vertically arranged cylinder roller 60 according to the pressure pipe make-up machine that the present invention developed.The first volume cloth rewinder roll 61 that install in cylinder roller 60 the place aheads is in order to continuous supply first base cloth.First base cloth refers to the first polyethylene mixture fabric 51b of its two ends with

waterproof membrane

51a and 51c making coatings.The base cloth that the first stock guide 61a that install the below of first volume cloth rewinder roll 61 is supplied with in order to guiding cloth beam 61 is bent to form overlapped part gradually with its two ends.

First nozzle 62 of installing near the place at seal nipple place is in order to spread upon adhesive the first base cloth two ends overlapped part.The overlapped part at its breadth two ends is smeared after the adhesive, first base cloth will be wound on advance on the cylinder roller 60 mobile.

First backer roll 63 of installing near cylinder roller 60 anterior position is stacked on the cylinder roller 60 in order to the first base cloth overlapped part is added, and makes to be closely linked mutually.Through such stage, can finish the moulding of first lining 51.

Second cloth beam 65 that install the centre of cylinder roller 60 is in order to continuous supply second base cloth.Second base cloth refers to the second polyethylene mixture fabric 52b of its two ends with

waterproof membrane

52a and 52c making coatings.A plurality of second nozzles 64 are installed in place near second cloth beam 65, form annular arrangement, in order to the many adhesives of smearing continuously in the localities on first lining, 51 surfaces of advancing mobile along cylinder roller 60.

The second stock guide 65a that install second cloth beam, 65 belows, second base cloth in order to supply with on the guiding cloth beam is bent to form overlapped part gradually with its two ends.The 3rd nozzle 66 of installing near the place of the second base cloth two ends overlapped part is in order to spread upon adhesive continuously on the second base cloth two ends overlapped part.

The overlapped part at its breadth two ends is smeared after the adhesive 55, second base cloth will be wound on along cylinder roller 60 and advance above the first mobile lining 51, thus, the adhesive of being smeared above first lining 51 55 is bonded on first lining 51 second base cloth.

Second backer roll 67 that install at the rear of the second stock guide 65a advances above the first mobile lining 51 in order to the second base cloth overlapped part is added stack along cylinder roller 60, they is combined closely mutually form second bonding plane 54.Through such stage, can finish pressure pipe forming process with two linings, 51,52 structures.

In addition, the 3rd backer roll 68 is installed in cylinder roller 60 rears, maintains a certain distance arranged vertical mutually.Make its volume become in order on pressure pipe 50, to exert pressure and dwindle, thus, with compressed pressure pipe 50 be wound on that the 3rd backer roll 68 rears install the cloth beam (not shown) on.

In addition, recited above, first base cloth and second base cloth are for the 3-tier architecture of its two ends with the polyethylene mixture fabric formation adhered to one another of waterproof membrane making coatings.But, except above-mentioned structural approach, also utilize other method to constitute first base cloth and second base cloth.Sometimes, aforesaid first base cloth and second base cloth can utilize diverse ways to constitute respectively.

Figure 12 is for the perspective view according to the pressure pipe make-up machine that the present invention developed, in order to the structural approach of this make-up machine the best to be described; Figure 13 is the side view of Figure 12; Figure 14 is the vertical view of Figure 12; Figure 15 is the expansion profile along the I-I line among Figure 14; Figure 16 is the expansion profile along the II-II line among Figure 14; Figure 17 is the expansion profile along the III-III line among Figure 14; Figure 18 is the expansion profile along the IV-IV line among Figure 14.

Be example shown on the figure, a make-up machine will be provided, carry out machine-shaping in order to the base cloth that will batch on the cloth beam according to best mode of the present invention.

At first, cloth beam 71 is installed in the place ahead of moulding board B of the present invention.Some conveying devices that are installed in moulding board B the place ahead according to order comprise conveying roller 72, brace table 73, jockey pulley 74, in order to the base cloth of guiding on cloth beam 71, alongst move under the stable situation can keeping.Conveying roller 72 is by the transmission of motor M institute, it is mobile to utilize its frictional force that base cloth R is advanced, and brace table 73 is used for watching out for shaking that base cloth R advances and produced when mobile, and jockey pulley 74 makes to keep certain transporting velocity in order to the base cloth R that transports is applied constant tension force.

Secondly, the importing plate 75 that will have a molding structure 75a is installed in the rear of conveying device at the place, the place ahead of moulding board B, and thus, the base cloth R with smooth surface that transports by brace table 73 arrives and imports plate 75 and just begin to form crooked shape.Set molding structure 75a is formed by the abundant roomy U type of bending radius on the importing plate 75, and the width of import is also broader than outlet, can be reduced in the frictional force that base cloth is taken place when molding structure 75a transports thus.

Importing plate 75 provided by the present invention utilizes the molding structure of O type, and the base cloth R in order to transporting exerts pressure from the top, carries out the bending machining moulding toward inside.Except the molding structure of O type, if when utilizing the molding structure of U type or C type, the Position Design of molding structure bottom in the place lower a little than base cloth, can be had bigger bending radius by the base cloth of moulding thus, and they all can keep predefined curved degree of the presently claimed invention.

Once more, the moulding bearing 70 that will have U type structure 75a is installed in conveying device export department, in order to will crooked gradually making forming the part that overlaps each other by the base cloth R that importing plate 75 transports.Its U type structure 75a is constituted with the required radius of its shaped component semicircle identical with flexibility.U type structure 75a on its moulding bearing 70 is in the process milled processed, to promote the just use later on of its wearability.

On moulding bearing 70, also design a plurality of shaped devices, in order to base cloth R gradually bending present the pipe shape.Its shaped device comprises first shaping area 81, second shaping area 82, the 3rd shaping area 83, and their arranged verticals are on moulding bearing 70.As mentioned above, shaped device being assigned as the reason of first, second,

third shaping area

81,82,83, mainly is the frictional force that takes place in order to be reduced on the forming process, can reduce the transmission load thus, is watched out for the wearing and tearing of base cloth.

According to the present invention, the cylinder roller 80 that will have a toroidal maintains a certain distance compartment with U type structure 75a and above-mentioned a plurality of shaped devices and is installed on the moulding bearing 70 under the state that a shaping area supports.The length of cylinder roller 80 will be through first shaping area 81, second shaping area 82, the 3rd shaping area 83, and extend to the bottom of the 3rd shaping area 83, extends along horizontal direction.This cylinder roller 80 can not be directly installed on the moulding bearing 70 that is utilized with base cloth R landline, thus among shaped device, should be not interrupted with landline be the position that condition selects it to be installed.

According to the present invention, 85 install a pair of backer roll 100 on backer roll bracket set on the cylinder roller 80, in order to exert pressure on the adhesive part of smearing at the seal nipple place of base cloth R, make them together adhered to one another.In addition, as shown in figure 13, between the 3rd shaping area 83 and the backer roll 100 nozzle 90 is set also, in order in the seal nipple place of base cloth R, to smear adhesive.The structure content of a pair of backer roll of installing about nozzle 90 bottoms 100 will be with reference to describing in detail behind Figure 18 again.

First shaping area 81 according among the shaped device of the present invention as shown in figure 15, is supporting cylinder roller 80 under angular structure.Mark 84 is the connecting elements between first shaping area 81 and the cylinder roller 80, and can adjust its height.First shaping area 81 can maintain a certain distance in order to support cylinder roller 80 and moulding bearing 70.

On the contrary, as shown in figure 16, second shaping area 82 protrudes one section partly installation of moulding bearing 70 facing to cylinder roller 80.And for example shown in Figure 17, the 3rd shaping area 83 is installed facing to whole branches that cylinder roller 80 protrudes moulding bearing 70.Thus, base cloth R will finish the forming process of pipe shape at last by the hole of the 3rd shaping area 83.

As shown in the figure, second shaping area 82 is kept at a distance with cylinder roller 80 on the scopes of about 90 degree and is faced one another, and the 3rd shaping area 83 is kept at a distance with cylinder roller 80 on the scopes of about 180 degree and faced one another.But according to the distance of first, second,

third shaping area

81,82,83, such scope all can change, and in other words, its scope is by making base cloth R utilize minimum power to carry and the angle of forming process is determined.

The inlet 82a of second shaping area 82 and the

3rd shaping area

83 and 83a have bigger width by the front portion that base cloth R is entered respectively and its rear portion has the structure of width smaller is formed.In addition, the cylinder roller 80 that supports with first shaping area 81 is regulated with the distance variable of moulding bearing 70 is moving.Make it not influence base cloth R thus, also reduce the frictional force that is taken place when carrying.And first, second,

third shaping area

81,82,83 that is as above constituted can shorten mutual distance at interval, and the length that helps dwindling moulding bearing 70 thus makes the shaped device miniaturization.

Figure 18 is the process of smearing adhesive in order to illustrate, with the partly vertical disconnected shown expansion profile later on of the back segment of cylinder roller 80.

For the overlapped part that makes base cloth R can keep the state that spreads out before smearing adhesive, install lateral incision plate 80a at the shaped device rear according to cylinder roller 80 of the present invention.Last lateral incision plate 80a mills processing on the surface of cylinder roller 80, and formed to axis direction.

In other words, form the overlapped part that overlaps each other together when base cloth R will be by the 3rd shaping area 83, and its overlapped part will form the shape of incision for the time being when arriving the last lateral incision plate 80a of cylinder roller 80, so that the mutual friction between prevention nozzle 90 and the base cloth.Watch out for the breakage of base cloth and the wearing and tearing of nozzle 90 thus, and can keep uniform adhesive to smear state.

Secondly, after the overlapped part of base cloth R was smeared adhesive A, exerting pressure made their mutual tight bond together again, thereby formed the pressure pipe with excellent durability.With Figure 18 is reference, will its process be described.

Comprise top backer roll 101 and bottom backer roll 102 according to backer roll 100 of the present invention, keep in the set rotating shaft of certain distances, vertical direction in order to be installed in cylinder roller 80.The bottom backer roll of being installed cylinder roller side after 80s 102 is rotatable, thus guiding is wound on the base cloth on the cylinder roller 80, watches out under the state that hangs low supported.Backer roll 101 pairs of base cloths that are wound on the cylinder roller 80 in top are exerted pressure from the top, and support it thus.

Top backer roll 101 is formed with chase 101a and 102a respectively with the edge of bottom backer roll 102, adheres on the backer roll in order to watch out for the adhesive A that spills from the overlapped part of base cloth.The Position Design of top backer roll chase 101a is in the place that outboard end connected of base cloth R overlapped part, and the Position Design of bottom backer roll chase 102a is in the place that medial extremity connected of base cloth R overlapped part.The structure of aforesaid chase 101a and 102a can avoid remaining adhesive to adhere on the surface of top backer roll 101 and bottom backer roll 102, watches out for the breakage of base cloth thus.

In addition, the front and back of the backer roll 100 that is constituted at top backer roll 101 and bottom backer roll 102 all can be provided with more than one at least secondary backer roll (not shown).They can keep firm curdled appearance thus in order to 90 li adhesive As that sprayed of nozzle are prolonged one period pressing time by 100 applied pressures of backer roll.

As mentioned above, backer roll bracket 85 supports bottom backer roll 102, and it is installed in the rear of cylinder roller 80.Can add cold air ascending pipe 86 and cold-air drainage pipe 87 on the backer roll bracket 85, when it escapes to outside the base cloth R overlapped part scope at the adhesive A from 90 li injections of nozzle because of backer roll 100 applied pressures, the extraneous adhesive A of base cloth R overlapped part is cooled to curdled appearance immediately, thus the phenomenon that can stop adhesive A outwards to spill.When the runner of design cold air ascending pipe 86 and cold-air drainage pipe 87, in order to watch out for the base cloth R that is clipped in the middle of first, second, third shaping area 81,82,83 and the cylinder roller 80 by scraping, above-mentioned cold air ascending pipe and cold-air drainage pipe should be formed by cutting apart independently runner.Cold-air drainage pipe 87 will be arranged on the medial surface of the backer roll bracket 85 that bottom backer roll 102 installed, and cold air ascending pipe 86 not interrupted place of selecting it to be installed will carry out forming process with base cloth R the time.And cold air ascending pipe 86 is connected to each other with the cooler of outside, supplies the cold air lower than general temperature thus.

The rear of the backer roll bracket of being installed on cylinder roller 80 85 also is provided with chase 88, in order to the drainage of guiding cold air, makes adhesive A continue to keep curdled appearance.The cold air that is sprayed by cold-air drainage pipe 87 is along the periphery of bottom backer roll 102, and the adhesive A that the base cloth overlapped part is smeared solidifies, and excretes along the edge of cylinder roller 80.Needn't establish the drainage of chase 88 thus at the rear of cylinder roller 80 in addition with guiding cold air.

The above-mentioned chase 88 that on cylinder roller 80, is provided with, as shown in scheming to go up, its position should with bottom backer roll 102 on chase 102a orthogonal directions arranged.Chase 88 is consistent mutually with the overlapped part of base cloth R thus, continues to keep curdled appearance because of make adhesive A with the cold air of being drained.

Secondly,, also add increased pressure board 89, in order to watch out for the concavo-convex phenomenon that produces at overlapped part place adhered to one another at above-mentioned a pair of backer roll 100 rears.Increased pressure board 89 will be exerted pressure being smeared on the overlapped part of adhesive, is producing concavo-convex phenomenon among the course of conveying in order to watch out on overlapped part, and thus with their tight bond together.In addition, if strengthen the base cloth bonded together place that overlaps each other, the backer roll 100 that is made of top backer roll 101 and bottom backer roll 102 can be added the back at increased pressure board 89.

Aforesaid structure has the following stage in utilization.At first, base cloth is wound on the cloth beam 71, and cloth beam 71 is installed on the moulding bearing 70, make base cloth by importing plate 75.Secondly, drive conveying roller 72 by motor M, base cloth R will form the pipe shape by first, second,

third shaping area

81,82,83 in order thus.Once more,, on the overlapped part that spreads upon base cloth, exert pressure in the seal nipple place with backer roll 100 then, finish the pressure pipe of moulding thus at last, eject continuously from the rear of cylinder roller 80 from 90 li spray adhesive A of nozzle.In addition, spray cold air,, and watch out for spilling of adhesive, thereby form uniform bonding plane to keep resistance to pressure so that shorten the setting time of adhesive.

According to another example of the present invention, will provide forming method.It comprises, and the base cloth of smooth surface at first is wound on the cloth beam 71, forms the sleeve pipe with pipe shape after by delivery phase, formative stage, in conjunction with the stage.

On delivery phase, the base cloth of smooth surface carry out unidirectional advance mobile.The transporting velocity of base cloth all can be adjusted according to the quality and the specification of base cloth.

On formative stage, the base cloth that transports reduces its bending radius gradually, presents the pipe shape thus and form to overlap each other partly.Process is dwindled in the bending of base cloth, will minimum direction be carried out with the frictional force that it was produced.And after the reply base cloth is test, set its production standard.

On in conjunction with the stage, will on the base cloth overlapped part that transports, smear adhesive, simultaneously overlapped part is exerted pressure, be accomplished sleeve pipe.The emitted dose of adhesive and to its local applied pressure degree that bonds all can be adjusted according to the kind of employed adhesive, the transporting velocity of base cloth, the specification of base cloth.Simultaneously, can keep firm curdled appearance, tackle its bonding place and apply suitable temperature adjustment in order to make adhesive.

Secondly, according to the pressure pipe described in the example of the present invention, as Figure 19 and shown in Figure 20, its basic structure be at first on the both sides of polyethylene mixture fabric 114 with waterproof membrane 112116 making coatings, in order to make base cloth, then it is processed and make the breadth two ends of base cloth overlap each other together, add and smear adhesive 115 and form bonding planes.

The pressure pipe made from such method 110 has strong point and weakness respectively.Its strong point is, forming method is simple, and thickness is thin significantly, thereby saves processing cost, improves flexibility, for the gas or the peculiar effect of liquid of ejection high pressure.Its weakness is, though on the both sides of polyethylene mixture fabric 114 with waterproof membrane 112,116 making coatings, make their mutual tight bond together, but the polyethylene mixture fabric 114 that is clipped in the middle of the waterproof membrane also keeps its internal voids, along the length direction of the polyethylene mixture fabric 114 of pipe shape moulding, at its end face that exposes the seepage phenomenon takes place easily thus.

In other words, the central employed polyethylene mixture fabric 114 at base cloth is to utilize long yarn and the weaving of warp thread institute to form respectively with fine polyester.Thus, on the surface of as above polyethylene mixture fabric 114 during with waterproof membrane 112,116 making coatings, moisture that it comprised and air can not spill and block inside, but in the internal voids of the polyethylene mixture fabric 114 at waterproof membrane 112,116 horizontal direction places the seepage phenomenon can take place.Seepage phenomenon as above, especially severe when especially being damaged on the surface of pressure pipe causes the serious problems to product credit.

Thus,, shown in Figure 21 a and Figure 21 d, will carry out encapsulation process, and constitute and possess the structure that stops seepage the end face that exposes with the polyethylene mixture fabric 114 of waterproof membrane 112,116 making coatings according to pressure pipe 110 of the present invention.

The preferred example of watching out for seepage is shown in Figure 21 a.On the surface of polyethylene mixture fabric 114,, on its overlapping two ends, smear adhesive and form adhesive cortex 120, form the sealed waterproof membrane structure in two ends thus, as shown in Figure 21 a with the base cloth of waterproof membrane 112,116 making coatings.

The adhesive cortex 120 of coating on overlapping two ends has the binder film structure of certain viscosity with formation, and covers the end face that exposes of pressure pipe 110.Make the end face that exposes keep sealing state thus with the ethene intertexture 114 of waterproof membrane 112,116 making coatings.When therefore applying bigger pressure on pressure pipe 110, the seepage phenomenon can not take place in its overlapped part toward the base cloth that folded inside is bondd.

The pressure pipe 110 that possesses aforesaid waterproof membrane structure is to utilize shaped device that the base cloth of smooth surface is formed sleeve pipe.And the conveying device that its adhesive cortex 120 will utilize shaped device to comprise forms.

In other words, base cloth with polyethylene mixture fabric 114 formation, from being wound on the stage of cloth beam, will be according to order by some conveying devices, it comprises conveying roller, brace table, jockey pulley, the shaped device that arrival is installed at the conveying device rear is in order to be processed into the pipe shape gradually with the base cloth under the smooth surface state.On the base cloth two ends, smear adhesive and should be installed in the place that brace table connects with the adhesive feeding mechanism that forms waterproof membrane.If the base cloth that is wound on the cloth beam has formed adhesive cortex 120 structures on its breadth two ends before processing, on shaped device the adhesive feeding mechanism needn't be installed.

Another example of watching out for the seepage phenomenon is shown in Figure 21 b.In exposing on the end face of polyethylene mixture fabric 114, utilize viscosity adhesive low and bonding easily to interosculate, cover the space of polyethylene mixture fabric 114 inside thus, form waterproof construction.

In other words, from the polyethylene mixture fabric 114 that the base cloth overlapped part is exposed, owing to its space absorbs adhesive and will break off its passage, and adhesive 130 uses the lower material of viscosity.Adhesive 130 will permeate on polyethylene mixture fabric 114 by the two ends of base cloth, cover the space on the intertexture 114 thus, and the while closely sticks together mutually with the waterproof membrane 112,116 that smear its top and bottom, forms firm waterproof end face.

Shown in Figure 21 c, on the adhesive 115 that the base cloth overlapped part is smeared, exert pressure, in order to the end face that exposes is carried out encapsulation process.Say that the more pressurized roll-in of adhesive of being smeared is lived on the overlapped part at base cloth two ends, be diffused into the outside of overlapped part thus, cover its end face, and form the waterproof end face.

At this moment, the adhesive of being smeared on the overlapped part at base cloth two ends 115 shown in Figure 21 c, has certain viscosity, and the composing method that especially forms adhesive cortex 120 on its breadth two ends is parallel, can form firm waterproof end face.

Shown in Figure 21 d, will at first fold by overlapping end face, thereby form the end face 118 that folds, and, keep waterproof effect thus with the waterproof membrane at polyethylene mixture fabric 114 medial surface places in order to adhered to one another with other end face.The end face 118 that folds that at first folds on the base cloth, as shown in the figure, its surface is made of 112,116 of waterproof membranes, overlap with other end face thus, when utilizing adhesive 115 adhered to one another, side surface has only waterproof membrane 112 to expose within it, and polyethylene mixture fabric 114 is blocked by waterproof membrane 112, thereby is formed waterproof construction.

Though for illustration purpose, go up in the above and narrated preferred example of the present invention,, the experienced people of those of this area are appreciated that under the situation of not leaving scope and spirit of the present invention, can carry out multiple variation, transformation and replacement.For example, said pressure pipe among the preferred example of the present invention, it was so that one or two linings were constituted, and still, according to same forming method, can also moulding has three above linings pressure pipe that the structure of bonding forms that overlaps each other.

Claims

1. a pressure pipe is characterized in that, polyethylene mixture fabric and waterproof membrane are together adhered to one another, and the top and bottom of polyethylene mixture fabric all form membrane waterproofing thus, and it is one side and the overlapping bonding of polyethylene protective layer at least among the membrane waterproofing up and down, forms base cloth; During with the base cloth moulding, protective layer is placed in medial surface, forms die, and the two ends of base cloth butt joint overlap each other by adhesive and bond together.

2. pressure pipe as claimed in claim 1; it is characterized in that; above-mentioned base cloth takes turns overlapping bonding together mutually by multilaminar polyethylene intertexture and multilayer flashing film; form its surface, both sides thus with multiple lining that membrane waterproofing was constituted; overlapping bonding polyethylene protective layer on the surface of multiple lining is in order to form the inner surface of base cloth.

3. pressure pipe as claimed in claim 1 is characterized in that above-mentioned base cloth is made up of a plurality of linings, bonds together with waterproof membrane is overlapping respectively on the both sides of each polyethylene mixture fabric; And between its each lining, together adhered to one another thus with the waterproof membrane making coatings, and on its surface, with the overlapping bonding of polyethylene protective layer.

4. a pressure pipe is characterized in that, described pressure pipe internal structure is made up of first lining, second lining and the 3rd lining; It comprises: among the top and bottom at least one side in case first polyethylene mixture fabric of moisture film making coatings, with the two ends of its breadth along first bonding plane by adhesive first lining that forms adhered to one another together; Among the top and bottom at least one side in case second polyethylene mixture fabric of moisture film making coatings, with the two ends of its breadth along second bonding plane by adhesive a plurality of second linings that form and be bonded in the first lining surface adhered to one another together.

5. pressure pipe as claimed in claim 4 is characterized in that, the position of first bonding plane of the first above-mentioned lining and second bonding plane of second lining along the circumferencial direction of pressure pipe apart from one another by.

6. pressure pipe as claimed in claim 4 is characterized in that, in the place that the first above-mentioned lining and second lining overlap each other, smears along its length direction with adhesive.

7. a pressure pipe is characterized in that, it is included among the top and bottom at least one side in case first polyethylene mixture fabric of moisture film making coatings, in order to making base cloth, and, the two ends of base cloth breadth are overlapped each other, form the pipe shape; On the polyethylene mixture fabric end face that the base cloth overlapped part is exposed, smear adhesive, form the waterproof end face structure, cover the space of polyethylene mixture fabric inside thus, the seepage phenomenon takes place on end face and its surface in order to stop in exposing of sleeve pipe.

8. pressure pipe as claimed in claim 7 is characterized in that, the adhesive of smearing on overlapped part has viscosity characteristic low and that bond easily, is used for covering on the end face that exposes, and forms adhesive coating thus.

9. pressure pipe as claimed in claim 7 is characterized in that, the adhesive of smearing on overlapped part is the lower material of viscosity; When this adhesive overlapped each other in the both ends of the surface of base cloth, infiltration covered the space on the intertexture thus on polyethylene mixture fabric.

10. pressure pipe as claimed in claim 7, it is characterized in that, in above-mentioned waterproof end face, the adhesive of being smeared on the overlapped part at base cloth two ends is pushed down with backer roll, make adhesive be diffused into the outside of overlapped part thus, cover its end face and form the waterproof end face.

11. pressure pipe as claimed in claim 10, it is characterized in that, the pressurized roll-in of adhesive of being smeared on the overlapped part of base cloth two ends is lived, be diffused into the outside of overlapped part thus, cover its end face and form the waterproof end face, it is the binder film structure with certain viscosity, will cover the end face that exposes of pressure pipe.

12. pressure pipe as claimed in claim 7 is characterized in that, overlapping end face to be folded and afterwards forms the end face that folds, and in order to adhered to one another with other end face, keep the waterproof effect with the waterproof membrane at polyethylene mixture fabric medial surface place thus.

13. a pressure pipe forming method, this forming method comprises;

Among the top and bottom at least the one side in case first polyethylene mixture fabric of moisture film making coatings will make the two ends of its breadth overlap to form the formative stage of pipe shape by first stock guide;

In the both ends of the surface of first polyethylene mixture fabric, smear the stage of adhesive continuously;

First polyethylene mixture fabric is directed to the cylinder roller, makes on the surface that is wound on the cylinder roller, and the two ends of the first polyethylene mixture fabric breadth are together adhered to one another, form the stage of first bonding plane.

14. method as claimed in claim 13 is characterized in that, next step stage that forms first bonding plane comprises;

First polyethylene mixture fabric is wound on and advances on the surface of cylinder roller when mobile, a plurality of places in its circumferencial direction outside, the stage that adhesive is smeared continuously;

Its one side or two sides will be by second stock guides with second polyethylene mixture fabric of waterproof membrane making coatings, and its two ends are bent to form overlapped part gradually thus, so that present the stage of pipe shape;

Overlapped part is smeared the adhesive stage at the breadth two ends of second polyethylene mixture fabric;

First polyethylene mixture fabric is wound on and advances on the surface of cylinder roller when mobile, guide second polyethylene mixture fabric to be wound on first polyethylene mixture fabric, thus the stage adhered to one another on a plurality of places of smearing adhesive on the circumferencial direction outside of first polyethylene mixture fabric;

Second polyethylene mixture fabric and first polyethylene mixture fabric are wound on and advance on the surface of cylinder roller when mobile, and the breadth two ends of second polyethylene mixture fabric are together adhered to one another, form the stage of second bonding plane.

15., it is characterized in that as claim 13 or 14 described methods, add a pair of backer roll, being used for exerting pressure on pressure pipe makes its smaller volume, and thus compressed pressure pipe is wound on the cloth beam of being installed at the backer roll rear.

16. method as claimed in claim 14 is characterized in that, in order to watch out for first bonding plane and second bonding plane overlaps each other together, the position of first stock guide, second stock guide be designed to along the circumferencial direction of cylinder roller apart from one another by.

17. a pressure pipe forming method, it will be wound on base cloth on the cloth beam, that have smooth surface and be processed into pipe shape sleeve pipe, and this method comprises;

Make the base cloth of smooth surface carry out unidirectional mobile delivery phase of advancing;

Make the base cloth that transports reduce its bending radius gradually, present the pipe shape thus, and form the formative stage partly that overlaps each other;

On the base cloth overlapped part that transports, smear adhesive, simultaneously overlapped part exerted pressure, make the adhesive of being smeared can flow out to the base cloth both ends in conjunction with the stage.

18. method as claimed in claim 17 is characterized in that, smears adhesive and when exerting pressure, from the internal spray cold air of sleeve pipe, makes the adhesive that flows out to outside, base cloth both ends in time form the additional phase of curdled appearance.