CN205504249U

CN205504249U - Winding pipe

Info

Publication number: CN205504249U
Application number: CN201620097487.4U
Authority: CN
Inventors: 林和平
Original assignee: Ningbo Yinzhou Qiuai Jieli Plastic Factory
Current assignee: Ningbo Yinzhou Qiuai Jieli Plastic Factory
Priority date: 2016-01-29
Filing date: 2016-01-29
Publication date: 2016-08-24
Anticipated expiration: 2026-01-29

Abstract

The utility model relates to a winding pipe, including plastic layer and the strengthening rib of cladding in this plastic layer, its characterized in that: the plastic layer form by a plastic sheet spiral winding, and two ring adjacent plastic sheets fuse the messenger at the mutual overlap joint of edge be formed with spiral helicine overlap joint district on the plastic layer, the strengthening rib be with the shape assorted coil spring form in overlap joint district and by the embedding in above -mentioned overlap joint district. The utility model discloses a winding pipe overall structure is simple, is only formed by a plastic sheet and a strengthening rib winding, and the pipe inner wall that the preparation obtained is level and smooth, difficult accumulation dust, debris etc. In the use, the strengthening rib is located the overlap joint district of plastic sheet just, and the complete butt fusion of ectonexine plastic sheet that is in the high temperature state makes winding pipe overall structure firm, has longer life, the utility model discloses a winding pipe need not be at strengthening rib periphery cladding adhesive linkage in advance, and the spring elasticity that the strengthening rib formed is better to that body intensity is high, the bearing capacity is good.

Description

A kind of winding pipe

Technical field

This utility model relates to a kind of winding pipe, refers specifically to a kind of plastic tube with reinforcement winding.

Background technology

Mostly the plastic flexible pipe being usually used in vacuum cleaner, ventilation unit, smoke exhaust ventilator, drainage equipment is by extrusion or blowing Obtaining etc. method, such plastic flexible pipe makes simply, preparation cost is low, but its pressure-bearing, anti-pressure ability are the most poor, Then people improve its pressure-bearing, anti-pressure ability by being embedded in reinforcement at plastic flexible pipe.

Authorization Notice No. be CN202674804U Chinese utility model patent " plastic-steel spirally-wound pipe " (application number: CN201220334432.2) disclosing a kind of structure, it includes a polyethylene inner tube, winding layer and polyethylene external protection, Winding layer is made up of high-strength plastic steel wire of spending, and the winding layer in above-mentioned winding pipe is helical wire web frame, is by left spiral shell Rotation steel wire is interweaved with right-hand screw steel wire and forms.Above-mentioned winding pipe produce time, polyethylene external protection be wound around degree of tightness Degree is difficult to control to, if being wound around tension, owing to the plastic sheet temperature of plastic extruder extrusion is higher, and plastic layer and winding layer After contact, by power upwards, excessive to be easily caused plastic layer damaged；And if being wound around more loose, although plastic sheet can will twine Winding layer covers and is also welded together with polyethylene inner tube, but particularly can shape around spiral wire between plastic layer and winding layer Become bigger space, this bulk strength just having had a strong impact on body and service life.

Authorization Notice No. is Chinese utility model patent " the heavy caliber low pressure feed water polyethylene silk screen of CN203322531U Winding pipe and the equipment of production thereof " (application number: CN201320414179.6) disclose a kind of structure, wherein, winding pipe Being strengthened structure sheaf by solid wall pipe body layer and evagination to constitute, solid wall pipe body layer is made up of inner wall layer, enhancement layer and outer wall layer, interior Parietal layer is the continuous inner wall layer that lamellar polyethylene tape is helically wound around that drum die surface is formed；Enhancement layer is steel wire net-belt It is helically wound around outside inner wall layer and forms steel wire enhancement layer；Outer wall layer is that lamellar polyethylene tape is helically wound around drum die The continuous outer wall layer that surface is formed；It is to be wound in by the tubular polyethylene helix of cladding skeleton pipe that evagination strengthens structure sheaf The evagination reinforcement that the outer wall layer outer surface of solid wall pipe body layer is formed.Solid wall pipe body layer in said structure falls within one and twines Around pipe, its preparation method is:

1) use first shaped polyethylene band extruding machine to squeeze out lamellar polyethylene tape, and be equidistantly wound in cylinder Die surface, and each adjacent sheet shaped polyethylene strip edge the most mutually overlaps fusion, forms the inner wall layer of solid wall pipe body layer；

2) use steel wire conveyer to be conveyed through shaping and the steel wire net-belt handled well, and be equidistantly wound in inner wall layer Outward, the steel wire enhancement layer of solid wall pipe body layer is formed；

3) use the second lamellar polyethylene tape extruding machine to squeeze out lamellar polyethylene tape, and be equidistantly wound in steel wire On guipure, steel wire net-belt is covered, and each adjacent sheet shaped polyethylene strip edge the most mutually overlaps fusion, formed real The outer wall layer of wall body layer.

Compared with the pipe structure disclosed by above-mentioned " plastic-steel spirally-wound pipe ", winding pipe prepared by the method does not use poly-second Alkene inner tube is as body internal layer, but directly utilizes polyethylene tape and be wound inner wall layer.But, it still exists and twines The problem that during around, polyethylene tape is easily damaged.When inner wall layer periphery winding steel wire guipure, tension is easily caused inwall Layer damages, and crossing pine can affect the firmness of whole body；When being wound around outer wall layer in steel wire net-belt periphery, outside tension is easily caused It is excessive that parietal layer damage, excessively pine are easily caused space between outer wall layer and inner wall layer, and welding area is little, affects the firm of body Degree.

In prior art, in order to make to be connected firmly between the interior outer plastic layer of winding pipe, also have in advance in reinforcement periphery system Standby tack coat, this tack coat is typically also adopted by polymer etc. and makes, and when preparing body, can make the bonding of reinforcement periphery Layer is at high temperature melted thus ectonexine of with winding pipe bonds together.Such as, Authorization Notice No. is CN 2580258 Chinese utility model patent " composite silane cross-linked polyethylene pipe of spiral wound steel wire " (application number: 01247977.2) Disclosing a kind of structure, it includes organosilane crosslinked polyethylene internal layer, organosilane crosslinked polyethylene inner layer outer wall is wound with by The spiral winding structure layer that the steel wire of bonding agent or bonding agent and blend polymer cladding is formed, at spiral wound steel wire The outer thermoplastic layer being complex as a whole with internal layer and spiral wire structure sheaf is had on the outer wall of structure sheaf.Binding agent with mould Material material properties is similar to, and can at high temperature be bonded together with plastic layer, thus between eliminating between steel wire and plastic layer Gap, strengthens the intensity of winding pipe to a certain extent.But, it is coated with adhesive linkage in steel wire periphery, on the one hand causes being wound around The preparation method of pipe is complicated, adds cost, on the other hand, and the elasticity glued layer constraint of steel wire after cladding adhesive linkage, The winding pipe made easily is crushed when being suppressed by bigger external force, and bearing capacity is poor.

Prior art also there is the following method of employing prepare spiral wound pipe: to be first wound around plastic sheet in mould periphery and form pipe Internal layer, then at reinforcements such as inner tube layer periphery spiral wound steel wires, then outside reinforcement periphery is wound around plastic sheet formation pipe Layer, the entirety finally formed said process heats, and makes inner tube layer be welded together with outer tube layer.Said process exists When carrying out last heating steps, temperature is too high is easily caused inner tube layer and/or outer tube layer burn through, and temperature is too low, easily leads Cause the two welding the most firm；And in order to avoid steel wire reinforcement is heated, inner tube layer and/or outer tube layer are caused burn through, generally Also binding agent can be coated with in advance in steel wire reinforcement periphery；Meanwhile, the plastics of inner tube layer and outer tube layer meeting in heating process Deformation, makes the spiral wound inside pipe wall finally prepared and outer wall be respectively provided with wave groove, and such pipe is applied in dust suction In device, ventilation unit, drainage equipment, house and cause foreign material to remain in pipe, and the foreign material long-term existence remained can be corroded Inside pipe wall, still can affect the service life of pipe, and then impact uses.

It addition, in prior art, the internal layer of winding pipe, reinforcement layer and outer layer are all separately to be wound around, i.e. three layers belong to respectively In single structure, simply by internal layer and the connection of outer layer, reinforcement layer is coated with wherein, the equipment needed during preparation Complex, operating cost is higher.

Utility model content

Technical problem to be solved in the utility model is the present situation for prior art, it is provided that a kind of simple in construction firmly, Intensity height, length in service life, bearing capacity are good, the winding pipe of interior walls be smooth.

The technical scheme that the above-mentioned technical problem of this utility model solution is used is: a kind of winding pipe, including plastic layer and bag It is overlying on the reinforcement in this plastic layer, it is characterised in that: described plastic layer is to be formed by a plastic sheet spiral winding, And two adjacent rings plastic sheet mutually overlaps fusion in edge and makes to be formed with on described plastic layer spiral helicine overlap, described Reinforcement is the coil spring shape of the mating shapes with overlap and is embedded in above-mentioned overlap.

In such scheme, described plastic layer has smooth inwall, and such pipe is in use difficult to accumulation ash Dirt, foreign material etc..

Outwards arch upward as improvement, the interior walls be smooth of described overlap, and the outer wall of described overlap.Use this structure, Make the reinforcement being embedded in plastic layer be positioned at the outer ring of plastic layer, thus avoid reinforcement that the inwall of plastic layer is caused pressure Compel and cause plastic layer inwall to present rough screw-like.

As preferably, described reinforcement is tinsel or plastic wire, preferably steel wire.

In above-mentioned each preferred version, described winding pipe is Tong Bu to be entwined, in institute by described plastic sheet and reinforcement Stating in plastic sheet winding process, described reinforcement synchronizes to be wound around and be embedded in overlap.Winding pipe of the present utility model Disposable shaping, simple and reasonable.

Compared with prior art, the utility model has the advantage of:

Winding pipe overall structure of the present utility model is simple, is only entwined by a plastic sheet and a reinforcement, and this is just Determining winding pipe of the present utility model need to disposably shape, i.e. in preparation process, plastic sheet needs be wound around Tong Bu with reinforcement Form body；In winding process, plastic sheet is positioned at lower section, and reinforcement is above, and the two synchronizes on roll shaft mould Being wound around, owing to the plastic sheet temperature of plastic extruder extrusion is higher, two adjacent rings plastic sheet can mutually overlap molten in edge Closing, after reinforcement is wound on previous circle plastic sheet upper surface, reinforcement is covered and with front by a rear circle plastic sheet in time One circle plastic sheet phase welding, so that reinforcement is directly embedded in plastic sheet, in this process, due to roll shaft mould one Directly being in rotary state, internal layer plastic sheet and reinforcement are played a supporting role by the roll shaft mould of rotation so that prepare Inboard wall of tube body smooth, be difficult to during use accumulate dust, foreign material etc.；

Body of the present utility model is plastic sheet and reinforcement to be the most synchronize entwined, it is not necessary to subsequent heat process, Do not worry the too high plastic sheet burn through that causes of temperature, or, the too low problem causing being wound around fastening not of temperature, as long as Winding process keeps plastic sheet is identical with reinforcement speed of wrap the two can be made to combine closely, so that winding pipe is overall Sound construction, has longer service life；

The material that winding pipe of the present utility model is used is less, has saved production cost, simplifies production technology, and by Directly it is coated in plastic layer without being coated with adhesive linkage in advance in reinforcement periphery in reinforcement, the bullet that reinforcement is formed Spring is elastic preferably, also will not be crushed even if bearing bigger external force, so that body intensity is high, bearing capacity is good.

Accompanying drawing explanation

Fig. 1 is the structural representation of this utility model embodiment；

Fig. 2 is the sectional view of Fig. 1；

Fig. 3 is the structure for amplifying schematic diagram of part A in Fig. 2；

Fig. 4 is reinforcement and the winding process schematic diagram of plastic sheet in this utility model embodiment.

Detailed description of the invention

Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.

As shown in Figures 1 to 3, the winding pipe of the present embodiment includes plastic layer 1 and is coated on the reinforcement in this plastic layer 1 2, plastic layer 1 is to be formed by plastic sheet 100 spiral winding, and in winding process, two adjacent rings plastic sheet 100 exists Edge mutually overlaps fusion and makes to be formed with spiral helicine overlap 10 on plastic layer 1, and reinforcement 2 is shaped to and overlap The spring of the mating shapes of 10 is also embedded in above-mentioned overlap 10.Plastic layer 1 in the present embodiment is to be moulded by one Tablet 100 is entwined under constantly the rotating of roll shaft mould, roll shaft mould inner side to plastic layer 1 in rotation process Playing a supporting role, plastic layer 1 is formed with smooth inwall 11.

In the present embodiment, the interior walls be smooth of overlap 10, the outer wall of overlap 10 outwards arches upward, so that being embedded in Reinforcement 2 in plastic layer 1 is positioned at the outer ring of plastic layer 1, thus avoids reinforcement 2 and make the inwall of plastic layer 1 Compressing is become to cause plastic layer 1 inwall to present rough screw-like.

Reinforcement 2 in the present embodiment can be tinsel or plastic wire, but when reinforcement 2 is tinsel particularly steel wire Time can become apparent from embody the present embodiment winding pipe advantage, compared with steel wire winding pipe of the prior art, this reality Execute the winding pipe problem without having to worry about the easy burn through of tube wall of example, without additionally arranging tack coat for sound construction, and Winding pipe bulk strength is high, bearing capacity is good.

The winding pipe of the present embodiment is Tong Bu to be entwined by the plastic sheet 100 of steel wire 200 and extrusion, in winding process, Using the continuous roll shaft mould rotated as being wound around axle, as shown in Figure 4, plastic sheet 100 is positioned at lower section, and steel wire 200 is positioned at Top, the two carries out synchronizing to be wound around, owing to plastic sheet 100 temperature of plastic extruder extrusion is higher, two adjacent rings plastics Sheet 100 can mutually overlap fusion in edge, after steel wire 200 is wound on previous circle plastic sheet 100 upper surface, after One circle plastic sheet 100 in time steel wire 200 is covered and with previous circle plastic sheet 100 phase welding so that steel wire 200 is straight Connect and be embedded in plastic sheet 100, formed and be coated with the winding pipe of helical form steel wire 200, and the plastic sheet limit mutually overlapped Edge then forms the overlap 10 for being coated with steel wire 200.

Claims

1. a winding pipe, including plastic layer and be coated on the reinforcement in this plastic layer, it is characterised in that: described Plastic layer is to be formed by a plastic sheet spiral winding, and two adjacent rings plastic sheet mutually overlaps fusion in edge and makes described Be formed with spiral helicine overlap on plastic layer, described reinforcement be the coil spring shape of the mating shapes with overlap also It is embedded in above-mentioned overlap.

Winding pipe the most according to claim 1, it is characterised in that: described plastic layer has smooth inwall.

Winding pipe the most according to claim 2, it is characterised in that: the interior walls be smooth of described overlap, described in take The outer wall meeting district outwards arches upward.

4. according to the winding pipe described in claim 1 or 2 or 3, it is characterised in that: described reinforcement is tinsel Or plastic wire.

Winding pipe the most according to claim 4, it is characterised in that: described reinforcement is steel wire.

6. according to the winding pipe described in claim 1 or 2 or 3, it is characterised in that: described winding pipe is by described Plastic sheet and reinforcement are Tong Bu entwined, and in described plastic sheet winding process, described reinforcement synchronizes to be wound around and also embeds In overlap.