CN1066622A

CN1066622A - The method and apparatus of heavy caliber, the moulding of overlength degree sebific duct

Info

Publication number: CN1066622A
Application number: CN92104203A
Authority: CN
Inventors: 任团元
Original assignee: XI'AN PLASTIC PIPE PLANT
Current assignee: XI'AN PLASTIC PIPE PLANT
Priority date: 1992-05-29
Filing date: 1992-05-29
Publication date: 1992-12-02

Abstract

Heavy caliber, the method and apparatus of overlength degree sebific duct moulding, characteristics of the present invention are first woven bone rack-layers, compound blank in making thereon again, coat outer glue-line again, and casing play can be woven, the sebific duct moulding, vulcanizing treatment and draw-gear link together, form continuous mechanization production, reached the purpose of producing large caliber ultra-long degree sebific duct, it is the breakthrough of braidingization sebific duct moulding process and equipment, the sebific duct compressive resistance of its production is big, do not come unstuck, the quality height, and has a saving manpower, reduce operation, shorten the production cycle, economize in raw materials and the advantage of the energy, thereby reduced production cost, can obtain higher economic benefit.

Description

The method and apparatus of heavy caliber, the moulding of overlength degree sebific duct

The invention belongs to the improvement of sebific duct its shaping process and equipment.

In, the structure of low-pressure delivery sebific duct is by rubber hose framework, interior glue (base) layer and outer glue (base) layer formation.At present, traditional fabric hose is progressively eliminated, and develops to the direction of braidingization, resinification, lightness, chemical fibreization, is beneficial to reduce production costs, and increases economic efficiency.Because braidingization production sebific duct is not having better moulding process aspect adaptation heavy caliber and the overlength degree, the braided construction hose production of factory both at home and abroad is still a kind of making of adopting in three kinds of traditional basic technologies, promptly (1) makes on steel core bar, (2) on soft plug, make, make on the compound blank in (3) yarn is woven in.There is the problem of two aspects in these three kinds of technologies, and the firstth, sebific duct develops the restriction that has been subjected to objective factor to heavy caliber, overlength degree direction, and the equipment input amount is big, power consumption is high, operation is heavy, the sebific duct quality is low, production efficiency can't improve; The secondth, the basic order of above-mentioned three kinds of technologies all is the interior base of first moulding sebific duct, outer surface at interior base coats (braiding) casing play again, and then the outer glue-line of coating, form outer compound blank, its topmost condition is the very property that interior compound blank will have coating (braiding) casing play and outer glue-line, just can finish the moulding of sebific duct.And the property endured naturally of sizing material has certain limit, and the normal hard core or soft core or the freezing method of centreless compound blank of adopting created very property condition in therefore producing.These three kinds of methods all respectively have merits and demerits, are controlled by shortcoming during the performance advantage, influence advantage when overcoming the deficiency, so can't solve the continuous production problem of making heavy caliber, overlength degree sebific duct always.Purpose of the present invention is exactly the problem at above-mentioned existence, and existing equipment is improved, and proposes a kind of new preparation method, to solve the continuous production problem of heavy caliber, overlength degree sebific duct.

The total design of the present invention is the order that changes above-mentioned technology, and making apparatus is improved.Pipe in making earlier, after coat the process sequence of casing play and outer glue-line thereon, change into and form woven bone rack-layer, pipe, the outer glue-line of back coating in the extruding more earlier.This is not simply putting upside down of process sequence, but can realize the object of the invention the advanced technology scheme, and can produce positive effect.The realization of technical solution of the present invention has three kinds of modes: first kind of mode is the sizing material of casing play braider device before interior pipe forming machine nose to be carried the periphery of core bar, with the core bar is that axle is woven in casing play on the core bar, it is drawn to the interior movement of former cavity, sizing material is extruded in the braiding skeleton (net) in the duct all around from interior movement by the passage in the core bar by extruder, moulding through the interior compound blank shape of the mouth as one speaks and interior movement, formation has the interior base of sebific duct of casing play, coat outer compound blank with conventional method again, form sebific duct, carrying out vulcanizing treatment with conventional method at last is finished product.Second kind of scheme is on the basis of first kind of scheme, with forming machine nose be adapted as can push simultaneously in pipe and coat the composite machine head of outer compound blank, make the sebific duct one-shot forming, carrying out vulcanizing treatment with conventional method again is finished product.The third scheme is on the basis of second kind of scheme, and the devices such as moulding, vulcanizing treatment and traction of sebific duct are linked together, and forms the work production line of interlock, and moulding and the vulcanizing treatment of once finishing sebific duct are finished product.

Accompanying drawing 1 is the sebific duct forming method that the present invention conceived and the apparatus structure schematic diagram of production process.The A interval is first kind of mode of technique scheme among the figure, and the AB interval is the second way, and the ABC interval is the third mode.1 is extruding apparatus for rubber material among the figure, 2 sizing materials are extruded passage, 3 skeleton braiders, the casing play of 4 braidings, 5 sizing materials are carried (braiding) core bar, 6 temperature adjustment interlayers, pipe sizing material extrusion cavities in 7,8 with the interior movement of core bar one, 9 composite machine heads, the compound blank shape of the mouth as one speaks in 10, the 11 outer compound blank shape of the mouth as one speaks, 12 outer compound blank sizing materials are extruded passage, the sulfuration plug of 13 strap clamp layers, 14 draw-gears, 15 supports, the required air pressure input pipe of 16 vulcanizing treatment, the required thermoelectric (al) wire that adds of 17 vulcanizing treatment is introduced, 18 air pressure export between sebific duct and the sulfuration plug, and 19 electric leads are introduced the interlayer of sulfuration plug.The colleague that sebific duct is made from accompanying drawing can both find out, each apparatus belongs to prior art basically as single-piece among the figure, as the skeleton braider, have can temperature adjustment core bar extruding apparatus for rubber material, vulcanizing treatment device, draw-gear, and (unillustrated among the figure) have in the compound blank shape of the mouth as one speaks and interior movement interior hose forming machine head (Y type head) and have the outer glue-line sizing material extrusion shaping machine (T type machine) of the outer glue-line shape of the mouth as one speaks and interior movement.

Principal character of the present invention is that the flow sequence of sebific duct moulding is first woven bone rack-layer, pushes interior compound blank again, coats outer glue-line again, carries out vulcanizing treatment at last.The apparatus of realizing this flow sequence is characterised in that, with the periphery of the sizing material conveying core bar of braider device before interior glue blank molding, can be on the core bar of axle with the casing play braiding with the core bar; Y type head and T type head be integrated becomes composite machine head, compound blank and the moulding on same head of outer glue-line in making; Vulcanizing treatment and draw-gear are connected after the composite machine head overall process serialization that sebific duct is produced.Below the specific embodiments of the technology of the present invention design just is described in conjunction with the accompanying drawings.

As shown in the figure, braider knits out tubular reticulated bone rack-layer with steel wire or yarn or chemical fibre nylon etc. around core bar, casing play is pulled along the inside movement direction of core bar, for preventing the distortion of casing play in distraction procedure, can evenly add draught line with the core bar axially parallel in when braiding, can draw and increase the intensity of sebific duct.Casing play is pulled in the cavity that is formed by lips gap and interior movement, sizing material (rubber or plastics or its mixture) is extruded by the interior movement sizing material extrusion cavities all around that extruder warp and core bar are connected as a single entity, between casing play and interior movement, form base in the sebific duct, under the effect of extruding, it is sturdy fixing that the sizing material porous is crossed the mesh and the casing play of casing play, and be pulled forward, interior pipe constantly forms, if former only is a Y type head, the interior pipe that form this moment is semi-finished product, can coat outer glue-line afterwards and carry out vulcanizing treatment.The used Y type of sebific duct industry machine is meant that it is the Y type that sizing material is extruded passage, the making of compound blank in being mainly used in, and T type machine is meant that it is the T type that sizing material is extruded passage, is mainly used in the coating of outer glue-line.With the composite machine head (9) that Y type head and T type head are integrated and form, be the T shape head of compound blank shape of the mouth as one speaks fore device has on the interior machine core housing of Y type machine in, thereby make composite machine head have the function of compound blank and the outer glue-line of coating in the extruding simultaneously.If change former into composite machine head, the moulding sebific duct semi-finished product of being produced can carry out vulcanizing treatment afterwards.If the device of vulcanizing treatment is connected after the composite machine head, add draw-gear, the moulding sebific duct semi-finished product that just composite machine head can be produced directly carry out vulcanizing treatment, thereby reach the quantity-produced purpose.And in continuous vulcanizing treatment process, have two problems to need to solve, the one, the heat up introducing of electric lead of required heating of sebific duct inwall can be introduced (17) by the interlayer of core bar with electric lead and be drawn the interlayer (19) that enters the sulfuration plug by its tail end through interior movement; The 2nd, easily plug is bonding can not advance with sulfuration for the back sebific duct inwall that heats up, thereby influence the quality of the production and the production of sebific duct, the way that solves is to introduce the input pipe of band air pressure from the core bar interlayer, discharge by its tail end through interior movement, making has air pressure to exist between sebific duct inwall and the sulfuration plug, forms depoling and isolates the blast film.

From above-mentioned whole explanation as can be seen, the present invention has the following advantages: (1) since casing play weave, the equipment of sebific duct moulding, vulcanizing treatment links together, and makes the production of large-bore hose can serialization, thereby obtain the large-bore hose of overlength degree; (2) since during interior glue blank molding the extruding porous of sizing material cross the mesh of casing play, sturdy Du Genggao, outside coating behind the glue-line, can make inside and outside glue-line and skeleton form mechanical rivet clasp, make it be difficult for delamination, improved quality, and saved on interior compound blank before the woven bone rack-layer and required impregnation slurry process before the glue-line outside coating; (3) because the serialization of braiding and the one-shot forming of sebific duct can make its compressive resistance increase, quality improves, no degumming phenomenon; (4) because sebific duct is realized continuous mechanization production, can save manpower, reduce operation, shorten the production cycle, economize in raw materials and the energy, thereby reduce production cost, improved economic benefit.

Claims

1, the method for a kind of heavy caliber, the moulding of overlength degree sebific duct, include operations such as casing play braiding, the extruding of interior compound blank, the coating of outer glue-line and vulcanizing treatment, the invention is characterized in: the flow sequence of its sebific duct moulding is, first woven bone rack-layer, again compound blank in the extruding, again coat outer glue-line, carry out vulcanizing treatment at last.

2, the method of sebific duct moulding according to claim 1, it makes required apparatus the sizing material extruder, former, braider and other equipment, the invention is characterized in: with the periphery of the conveying core bar of the extruding apparatus for rubber material of braider device before former, making it can be that axle is woven in casing play on the core bar with the core bar, and can be pulled enter on the former in the chamber between the compound blank shape of the mouth as one speaks and the interior movement, extrude interior compound blank sizing material to the interior moulding of skeleton (net) by the sizing material extrusion cavities on the interior movement, formation has the interior base of sebific duct of casing play, can coat outer glue-line and carry out vulcanizing treatment with traditional method afterwards.

3, the method and apparatus of sebific duct moulding according to claim 2, it is characterized in that: change former into composite machine head, it is that the T type head of the compound blank shape of the mouth as one speaks constitutes in being had by front end, compound blank and the outer glue-line of coating in pushing simultaneously, make the sebific duct one-shot forming, can carry out vulcanizing treatment with traditional method afterwards.

4, the method and apparatus of sebific duct moulding according to claim 3 is characterized in that: vulcanizing treatment device and draw-gear are connected after the composite machine head, the sebific duct of moulding directly can be carried out vulcanizing treatment, the overall process serialization that sebific duct is produced.

5, the method and apparatus of sebific duct moulding according to claim 4, it is characterized in that: adopt the method that heats with electric lead at the interlayer that vulcanizes plug solves needs the sebific duct inwall to heat up in the vulcanizing treatment process problem, its electric lead is introduced by the interlayer of core bar, is drawn the interlayer that enters the sulfuration plug by its tail end through interior movement; And introduce the pneumatic tube that has air pressure by the interlayer of core bar, and discharge air pressure through interior movement by its tail end, make to form depoling between sebific duct inwall and the sulfuration plug and isolate the blast film, to solve the sebific duct inwall and to vulcanize the bonding problem of plug.

6, according to claim 2 or 3 or the method and apparatus of 4 or 5 described sebific duct moulding, it is characterized in that: can when the woven bone rack-layer, add draught line equably with the core bar axially parallel.