CN104760272A - Steel-plastic composite pipe cutting end surface plastic seal device and application thereof - Google Patents
Steel-plastic composite pipe cutting end surface plastic seal device and application thereof Download PDFInfo
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- CN104760272A CN104760272A CN201510197779.5A CN201510197779A CN104760272A CN 104760272 A CN104760272 A CN 104760272A CN 201510197779 A CN201510197779 A CN 201510197779A CN 104760272 A CN104760272 A CN 104760272A
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Abstract
The invention discloses a steel-plastic composite pipe cutting end surface plastic seal device and an application thereof, and belongs to the field of the production of a steel-plastic composite pipe cutting end surface plastic seal. The steel-plastic composite pipe cutting end surface plastic seal device comprises an outer airbag, an inner airbag and a plastic ring, and also comprises a heater, wherein the outer airbag and the inner airbag are respectively provided with an air valve, the outer airbag is in a loop shape, the outer air valve sleeves the outer wall of a composite pipe plastic layer of the steel-plastic composite pipe outer layer when in use, the cross section of the inner airbag is in a T shape, and the inner airbag is of a structure with a T-shaped head circular cover on the top and a cylindrical air cavity in the lower part; and the plastic ring is an annular cylindrical structure; a heater coil surrounds the outer wall of the outer airbag. By utilizing the plastic seal device, the seal work of a steel-plastic composite pipe is completed by virtue of steps of assembling, pressurizing, heating, cooling and pressure relief. According to the plastic-seal device and the application thereof, a purpose of firmness in injection molding and unlikeliness in dropping can be realized; and moreover, the steel-plastic composite pipe cutting end surface plastic seal device has advantages of simple process, less investment, low energy consumption, attractive appearance, low cost and the like.
Description
Technical field
The present invention relates to steel-plastics composite pipe cut end dough model envelope making field, particularly relate to a kind of steel-plastics composite pipe cut end dough model seal apparatus and application thereof.
Background technology
Steel-plastics composite pipe possesses plastic conduit health non-scaling, corrosion-resistant, rustless feature, possesses high, the impact-resistant advantage of steel pipe pressure-bearing simultaneously.Steel-plastics composite pipe adopts steel plate punching, cans, argon arc welding to be connected into perforation steel pipe, mould again inside and outside perforation steel pipe, and inside and outside mould conjuncted, one-time formed technology, make steel mould combination closely, not easily separated, fundamentally solve the technical barrier that separation moulded by steel.
Need to carry out customized cut-off to it after the extrusion molding of steel-plastics composite pipe is produced, and plastic packaging process will be carried out to dew iron end face after cutting off.Past traditional technique be to customized cut-off after steel-plastics composite pipe two end surface adopt on the special injection molding that dimension mould is housed, respectively quadric injection mould end socket is carried out to two ends.But this technological equipment investment is large, and the presentation quality of sealing is poor, and cost is high, and secondary injection plastics are insecure, easily come off.
Chinese Patent Application No.: 200510040526.3, publication date: 2005.11.16 patent document discloses a kind of sealing machine for end face of steel-plastic composite tube, it is characterized in that on the table, coaxially pair of brackets is set, comprise push rod support and pipe holder moulded by steel, steel is moulded tube grip and is moulded in pipe holder at described steel, axially displaceable push rod with threaded engagement on push rod support, one end that push rod moulds pipe towards steel is fixedly installed heated die plate, on described heated die plate, the endface position of pipe is moulded corresponding to steel, it is the groove that an annular can hold that the insertion of pipe pipe end tight fit moulded by steel, grooved section is " U " shape.Structure of the present invention is simple, sealing is firm, and " U " shape termination is easy to assemble in coordinating with the spigot-and-socket of pipe fitting.The moulding of this invention connects and have employed the extra joint moulding circle and groove, and carries out heating to groove and mould conjunction, if mould the material of circle and former when moulding pipe inconsistent, or easily generation secondary injection plastics are insecure, caducous problem.
Summary of the invention
1. invent the technical problem that will solve
When sealing for steel-plastics composite pipe cut end dough model in prior art, quadric injection mould is insecure, and caducous problem, the invention provides a kind of steel-plastics composite pipe cut end dough model seal apparatus and application thereof.It is firm that it can realize injection moulding, the object of difficult drop-off, and it is simple to have technique, reduced investment, low power consuming, and outward appearance is beautiful, low cost and other advantages.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
A kind of steel-plastics composite pipe cut end dough model seal apparatus, comprise outer air bag, interior air bag and plastic hoop, also comprise heater, wherein: outer air bag and interior air bag are provided with valve cock, outer air bag is loop overlapping shape, and during use, ring set is at steel-plastics composite pipe outer field multiple tube plastic layer outer wall; Interior air bag cross section is "T"-shaped, for the structure of cylindrical air cavity is arranged at the circular lid of top " T " head, bottom; Plastic hoop is Ring-cylindrical structure; Coil encircling is gasbag ektexine outside.
Preferred technical scheme, outer air bag and interior air bag are rubber pneumatic bag.
Preferred technical scheme, plastic hoop is ptfe plastic ring.
Preferred technical scheme, heater is heating generator.
Preferred technical scheme, heater spirals gasbag ektexine outside in the shape of a spiral, and its heating head shape is spiral surrounding conductiving metal strip.
Preferred technical scheme, the wall thickness of plastic hoop is consistent with the wall thickness of steel-plastics composite pipe.
An application for steel-plastics composite pipe cut end dough model seal apparatus, the steps include:
A, assembling: by the difference of the steel-plastics composite pipe after customized cut-off according to specification, upper outside air bag and interior air bag is overlapped respectively at the two ends of steel-plastics composite pipe, and load onto plastic hoop, wherein, outer air pocket rings is enclosed within steel-plastics composite pipe outer field multiple tube plastic layer outer wall, and the steel-plastics composite pipe mouth of pipe is stretched out in outer air bag one end; The bottom of interior air bag stretches to steel-plastics composite pipe inside, top " T " head circular lid covers in the outer air bag collar extension of stretching out the steel-plastics composite pipe mouth of pipe; Plastic hoop is entrenched in the toroidal cavity of outer air bag, interior air bag and steel-plastics composite pipe mouth of pipe formation, leaves gap between plastic hoop and the steel-plastics composite pipe mouth of pipe;
B, pressurization: outer air bag and interior air bag are stamped compressed air by valve cock;
C, heating: the heater electrified regulation covering outer gasbag ektexine; The multiple tube plastic layer of steel-plastics composite pipe starts temperature distortion, and form the plastic resin of stream change, under the pressure of air bag and interior air bag outside, the plastic resin that stream becomes flows to gap between plastic hoop and the steel-plastics composite pipe mouth of pipe and to steel-plastics composite pipe cutting sealed port of butt end;
D, cooling: stop heating, make the plastic resin in gap between plastic hoop and the steel-plastics composite pipe mouth of pipe that stream occur and become the rear natural cooling forming of sealing;
E, release: the outer air bag at multiple tube two ends after complete cooling forming and the compressed air of interior air bag are bled off by valve cock, take outer air bag, interior air bag and plastic hoop away, the sealing work of steel-plastics composite pipe completes.
Preferred application technology scheme, the sidewall that steel-plastics composite pipe pressed close to by steps A China and foreign countries' air bag and interior air bag is covered with high temperature resistant silicon gum cover.
Preferred application technology scheme, according to the difference of multiple tube specification size, in step B, compressed air air pressure controls at 0.04 ~ 0.3Mpa; The step C electrified regulation time is 5 ~ 15 seconds; Step D cool time is 5 ~ 12 minutes.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with prior art, there is following beneficial effect:
(1) a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present invention, by the engagement sleeves of outer air bag, interior air bag and plastic hoop at steel-plastics composite pipe inside and outside wall, by heater, whole device is heated again, the pressure flows by action inbound port sealing surface of melt flow plastic resin at air bag is formed after making the polymer heating of steel-plastics composite pipe self, define even one, end face of steel-plastic composite tube plastic packaging mouth firmly attractive in appearance;
(2) a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present invention, outer air bag and interior air bag are rubber pneumatic bag, and squeezing effect is good, and fusing point is higher than plastics, and resistance to certain high temperature;
(3) a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present invention, the certain high temperature of ptfe plastic ring ability and unlikely distortion, the port that end face of steel-plastic composite tube is formed is smooth;
(4) a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present invention, by using heating generator to multiple tube steel core layer heat temperature raising, thus form melt flow plastic resin after causing the polymer heating of multiple tube self, heating effect is good, firing rate is fast, easy temperature control system;
(5) a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present invention, heater spirals the use of gasbag ektexine and spiral surrounding conductiving metal strip outside in the shape of a spiral, make heating more even, whole steel-plastics composite pipe can form uniform melt flow plastic resin and supplement steel-plastics composite pipe cutting end face;
(6) a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present invention, the wall thickness of plastic hoop is consistent with the wall thickness of steel-plastics composite pipe, can effectively avoid forming burr and affecting quality during end face plastic packaging;
(7) application of a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present invention, step is simple, and principle is clear, operates understandable, is conducive to applying;
(8) application of a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present invention, the use of high temperature resistant silicon gum cover, effectively can avoid the high temperature ageing of outer air bag and interior air bag, improve its service life;
(9) application of a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present invention, the determination of process parameters range, advantageously controls accordingly in operating personnel;
(10) a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present invention and application thereof, achieve envelope and mould mouth firmly, the object of difficult drop-off, and it is simple to have technique, reduced investment, low power consuming, outward appearance is beautiful, the plurality of advantages such as cost is low.
Accompanying drawing explanation
The structural representation of Fig. 1 device of the present invention.
Label declaration in schematic diagram: 1, outer air bag; 2, interior air bag; 3, plastic hoop; 4, heater; 5, multiple tube steel core layer; 6, multiple tube plastic layer; 7, valve cock.
Detailed description of the invention
For understanding content of the present invention further, the present invention is described in detail by reference to the accompanying drawings.
Embodiment 1
As shown in Figure 1, a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present embodiment, comprise outer air bag 1, interior air bag 2 and plastic hoop 3, also comprise heater 4, outer air bag 1 and interior air bag 2 are provided with valve cock 7, outer air bag 1 is in loop overlapping shape, and internal diameter is 150mm, and during use, ring set is at steel-plastics composite pipe outer field multiple tube plastic layer 6 outer wall; Interior air bag 2 cross section is "T"-shaped, for the circular lid of top " T " head, bottom have external diameter to be the structure of the cylindrical air cavity of 140mm; Plastic hoop 3 is Ring-cylindrical structure, and external diameter is 150mm, internal diameter is 140mm; Heater 4 is electromagnetic heater, and its coil encircling is air bag 1 outer wall outside.
Being applied to of a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present embodiment is inside and outsidely multiple tube plastic layer 6, centre is the steel-plastics composite pipe after the customized cut-off of multiple tube steel core layer 5 three-decker, its caliber external diameter is 150mm, internal diameter is 140mm, wall thickness 10mm, need to use two covering devices, carry out plastic packaging to the steel-plastics composite pipe two ends after customized cut-off respectively, step is:
A, assembling: the two ends of the steel-plastics composite pipe after customized cut-off are overlapped upper outside air bag 1 and interior air bag 2 respectively, and load onto plastic hoop 4, wherein, outer air bag 1 ring set is at steel-plastics composite pipe outer field multiple tube plastic layer 6 outer wall, and the steel-plastics composite pipe mouth of pipe is stretched out in outer air bag 1 one end; The bottom of interior air bag 2 stretches to steel-plastics composite pipe inside, top " T " head circular lid covers in outer air bag 1 collar extension of stretching out the steel-plastics composite pipe mouth of pipe; Plastic hoop 4 is entrenched in the toroidal cavity of outer air bag 1, interior air bag 2 and steel-plastics composite pipe mouth of pipe formation, leaves the gap of 2mm between plastic hoop 4 and the steel-plastics composite pipe mouth of pipe;
B, pressurization: outer air bag 1 and interior air bag 2 are stamped compressed air by valve cock 7; Compressed air air pressure controls at 0.3Mpa;
C, heating: heater 4 electrified regulation covering outer air bag 1 outer wall, after multiple tube steel core layer 5 is heated, temperature raises, the inside and outside two-layer multiple tube plastic layer 6 of steel-plastics composite pipe starts temperature distortion, and form the plastic resin of stream change, under the pressure of air bag 1 and interior air bag 2 outside, the plastic resin that stream becomes flows to gap between plastic hoop 4 and the steel-plastics composite pipe mouth of pipe and to steel-plastics composite pipe cutting sealed port of butt end; The electrified regulation time is 15 seconds;
D, cooling: stop heating, make the plastic resin flowing to gap between plastic hoop 4 and the steel-plastics composite pipe mouth of pipe to natural cooling forming after steel-plastics composite pipe cutting sealed port of butt end; Cool time is 12 minutes;
E, release: the outer air bag 1 at multiple tube two ends after complete cooling forming and the compressed air of interior air bag 2 are bled off by valve cock 7, take outer air bag 1, interior air bag 2 and plastic hoop 4 away, the sealing work of steel-plastics composite pipe completes.
A kind of steel-plastics composite pipe cut end dough model seal apparatus of the present embodiment and application thereof, the seal face of generation is firm, difficult drop-off; Operating procedure technique is simple, reduced investment, low power consuming, and outward appearance is beautiful, and cost is low, and due to evenly exerting pressure of outer air bag 1 and interior air bag 2, the plastic resin that stream becomes does not produce any impact to steel-plastics composite pipe profile.
Embodiment 2
A kind of steel-plastics composite pipe cut end dough model seal apparatus of the present embodiment, basic structure is with embodiment 1, and difference is: outer air bag 1 and interior air bag 2 are the rubber pneumatic bag of heat resistant; Plastic hoop 3 is for the certain high temperature of ability and the ptfe plastic ring of unlikely distortion; Heater 4 is heating generator, and air bag 1 outer wall outside that spirals in the shape of a spiral, its heating head shape is spiral surrounding conductiving metal strip, and heating effect is better, and can improve the speed of heating.
The skin that is applied to of a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present embodiment is multiple tube plastic layer 6, internal layer is the steel-plastics composite pipe after the double-deck customized cut-off of multiple tube steel core layer 5, its caliber external diameter is 150mm, internal diameter is 140mm, wall thickness 10mm, its basic step is with embodiment 1, difference is: the sidewall that steel-plastics composite pipe pressed close to by steps A China and foreign countries' air bag 1 and interior air bag 2 is covered with high temperature resistant silicon gum cover, outer air bag and interior air bag effectively can be avoided directly to be heated and aging, improve its service life; In step B, compressed air air pressure controls at 0.04Mpa; The step C electrified regulation time is 5 seconds; Step D cool time is 5 minutes.
A kind of steel-plastics composite pipe cut end dough model seal apparatus of the present embodiment and application thereof, be applicable to clad steel plastic composite, the operating time is shorter.
Embodiment 3
A kind of steel-plastics composite pipe cut end dough model seal apparatus of the present embodiment, basic structure is with embodiment 2, and difference is: 2 these devices of cover carry out plastic packaging to two cutting end faces of steel-plastics composite pipe simultaneously.
Being applied to of a kind of steel-plastics composite pipe cut end dough model seal apparatus of the present embodiment is inside and outsidely multiple tube plastic layer 6, centre is the steel-plastics composite pipe after multiple tube steel core layer 5 three-decker, customized cut-off, its basic step is with embodiment 2, difference is: 2 these devices of cover carry out plastic packaging simultaneously, and in step B, compressed air air pressure controls at 0.15Mpa; The step C electrified regulation time is 10 seconds; Step D cool time is 8 minutes.
A kind of steel-plastics composite pipe cut end dough model seal apparatus of the present embodiment and application thereof, 2 these devices of cover carry out plastic packaging to two cutting end faces of steel-plastics composite pipe simultaneously, and working (machining) efficiency effectively improves.
Example of the present invention is only be described the preferred embodiment of the present invention; not design of the present invention and scope are limited; under the prerequisite not departing from design philosophy of the present invention; the various distortion that this area engineers and technicians make technical scheme of the present invention and improvement; all should fall into protection scope of the present invention, oneself warp of technology contents of request protection of the present invention is all recorded in detail in the claims.
Claims (9)
1. a steel-plastics composite pipe cut end dough model seal apparatus, comprises outer air bag (1), interior air bag (2) and plastic hoop (3), it is characterized in that: also comprise heater (4), wherein:
Described outer air bag (1) and interior air bag (2) are provided with valve cock (7), and outer air bag (1) is in loop overlapping shape, and during use, ring set is at steel-plastics composite pipe outer field multiple tube plastic layer (6) outer wall; Interior air bag (2) cross section is "T"-shaped, for the structure of cylindrical air cavity is arranged at the circular lid of top " T " head, bottom; Described plastic hoop (3) is Ring-cylindrical structure; Described heater (4) coil encircling air bag (1) outer wall outside.
2. a kind of steel-plastics composite pipe cut end dough model seal apparatus according to claim 1, is characterized in that: described outer air bag (1) and interior air bag (2) are rubber pneumatic bag.
3. a kind of steel-plastics composite pipe cut end dough model seal apparatus according to claim 1 and 2, is characterized in that: described plastic hoop (3) is ptfe plastic ring.
4. a kind of steel-plastics composite pipe cut end dough model seal apparatus according to claim 1 and 2, is characterized in that: described heater (4) is heating generator.
5. a kind of steel-plastics composite pipe cut end dough model seal apparatus according to claim 4, is characterized in that: described heater (4) spirals air bag (1) outer wall outside in the shape of a spiral, and its heating head shape is spiral surrounding conductiving metal strip.
6. a kind of steel-plastics composite pipe cut end dough model seal apparatus according to claim 3, is characterized in that: the wall thickness of described plastic hoop (3) is consistent with the wall thickness of steel-plastics composite pipe.
7. an application for steel-plastics composite pipe cut end dough model seal apparatus according to claim 1, the steps include:
A, assembling: by the difference of the steel-plastics composite pipe after customized cut-off according to specification, upper outside air bag (1) and interior air bag (2) is overlapped respectively at the two ends of steel-plastics composite pipe, and load onto plastic hoop (4), wherein, outer air bag (1) ring set is at steel-plastics composite pipe outer field multiple tube plastic layer (6) outer wall, and the steel-plastics composite pipe mouth of pipe is stretched out in outer air bag (1) one end; The bottom of interior air bag (2) stretches to steel-plastics composite pipe inside, top " T " head circular lid covers in outer air bag (1) collar extension of stretching out the steel-plastics composite pipe mouth of pipe; Plastic hoop (4) is entrenched in the toroidal cavity of outer air bag (1), interior air bag (2) and steel-plastics composite pipe mouth of pipe formation, leaves gap between plastic hoop (4) and the steel-plastics composite pipe mouth of pipe;
B, pressurization: outer air bag (1) and interior air bag (2) are stamped compressed air by valve cock (7);
C, heating: heater (4) electrified regulation covering outer air bag (1) outer wall; The multiple tube plastic layer (6) of steel-plastics composite pipe starts temperature distortion, and form the plastic resin of stream change, under the pressure of air bag (1) and interior air bag (2) outside, the plastic resin that stream becomes flows to gap between plastic hoop (4) and the steel-plastics composite pipe mouth of pipe and to steel-plastics composite pipe cutting sealed port of butt end;
D, cooling: stop heating, make the plastic resin in gap between plastic hoop (4) and the steel-plastics composite pipe mouth of pipe that stream occur and become the rear natural cooling forming of sealing;
E, release: the compressed air of the outer air bag (1) at multiple tube two ends after complete cooling forming and interior air bag (2) is bled off by valve cock (7), take outer air bag (1), interior air bag (2) and plastic hoop (4) away, the sealing work of steel-plastics composite pipe completes.
8. the application of steel-plastics composite pipe cut end dough model seal apparatus according to claim 7, is characterized in that: the sidewall that steel-plastics composite pipe pressed close to by steps A China and foreign countries' air bag (1) and interior air bag (2) is covered with high temperature resistant silicon gum cover.
9. the application of steel-plastics composite pipe cut end dough model seal apparatus according to claim 8, is characterized in that: in step B, compressed air air pressure controls at 0.04 ~ 0.3Mpa; The step C electrified regulation time is 5 ~ 15 seconds; Step D cool time is 5 ~ 12 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510197779.5A CN104760272B (en) | 2015-04-23 | 2015-04-23 | A kind of steel-plastics composite pipe cut end dough model seal apparatus and its application |
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| CN201510197779.5A CN104760272B (en) | 2015-04-23 | 2015-04-23 | A kind of steel-plastics composite pipe cut end dough model seal apparatus and its application |
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| CN104760272A true CN104760272A (en) | 2015-07-08 |
| CN104760272B CN104760272B (en) | 2017-06-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105946213A (en) * | 2016-06-15 | 2016-09-21 | 隋为民 | Manufacturing method and equipment for tube fuse seal of plastic composite tube of steel framework |
| CN106015821A (en) * | 2016-08-15 | 2016-10-12 | 武汉金牛经济发展有限公司 | Steel-plastic composite pipe end face sealing device and method |
| CN110901034A (en) * | 2019-10-29 | 2020-03-24 | 谭连平 | Production method of polyethylene pressure injection sealing of water supply and drainage pipe port |
| CN113858632A (en) * | 2021-09-27 | 2021-12-31 | 安源管道实业股份有限公司 | Method and equipment for manufacturing steel skeleton plastic composite pipe fusion sealing opening |
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| CN204547059U (en) * | 2015-04-23 | 2015-08-12 | 马鞍山宏力橡胶制品有限公司 | A kind of steel-plastics composite pipe cut end dough model seal apparatus |
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| JP2004058621A (en) * | 2002-07-31 | 2004-02-26 | Yoshino Kogyosho Co Ltd | Synthetic resin laminated tubular body and method for covering its end face |
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| CN113858632A (en) * | 2021-09-27 | 2021-12-31 | 安源管道实业股份有限公司 | Method and equipment for manufacturing steel skeleton plastic composite pipe fusion sealing opening |
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