CN104981035A - Electric heating cloth and preparation method and apparatus thereof - Google Patents
Electric heating cloth and preparation method and apparatus thereof Download PDFInfo
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- CN104981035A CN104981035A CN201410027616.8A CN201410027616A CN104981035A CN 104981035 A CN104981035 A CN 104981035A CN 201410027616 A CN201410027616 A CN 201410027616A CN 104981035 A CN104981035 A CN 104981035A
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Abstract
The invention discloses electric heating cloth and a preparation method and apparatus thereof. The electric heating cloth preparation apparatus comprises a double-screw double-die-head extrusion tape casting sealing device, a coating film cutting and heat-sealing device, and a copper lead clamping injection moulding sealing device. The electric heating cloth comprises a heating material which is a carbon fiber conductive filament. Carbon fibers and glass fibers are woven according to a certain rule. The heating material is coated with an insulated sealing layer. The electric heating cloth can be bent, and is resistant to extrusion, humidity, corrosion, and fire.
Description
Technical field
The present invention relates to a kind of electric heating cloth.
Background technology
At present, known some exothermic materials both at home and abroad, as products such as: electrically conductive ink, Buddhist nun fertile band, electrically-conducting paint, copper facing Electric radiant Heating Film, carbon dust, PTC potsherd, quartz ampoule, electrical heating wires, in Long-Time Service, have that overcurrent between electrode is easily broken, heater peroxidating, easily come off, the shortcoming such as dielectric strength is low, poor safety performance, useful life is short, construction requirement is high, investment and use cost height.
Summary of the invention
The object of the invention is to for the problems referred to above, a kind of electric heating cloth of low-temp radiating improving dielectric strength, high sealing performance is provided.
The present invention is by the following technical solutions:
A kind of electric heating cloth preparation facilities, comprises that a twin-screw Double-mold-head extrudes curtain coating sealing device, a bound edge film cuts and hot sealing device and copper wire lead-in wire cassette injection moulding sealing device.
Described twin-screw Double-mold-head is extruded curtain coating sealing device and is comprised a naked electric heating yardage roll, the lower right of described naked electric heating yardage roll is provided with one first chill roll, the left side of described chill roll is provided with one second chill roll, the left side of described second chill roll is provided with a rolling, and the top of described first chill roll and described second chill roll is respectively equipped with one first die head and the second die head.
The left and right sides of described first chill roll and described second chill roll is equipped with a pressure roller.
Described bound edge film cuts and hot sealing device comprises an air cylinder support, described air cylinder support is provided with a cylinder, described cylinder band is dynamically connected heat-sealing head on, once heat-sealing head to be fixedly arranged on described air cylinder support and to be in the below of described upper heat-sealing head, is provided with a polytetrafluoro film guide rail between described upper heat-sealing head and described lower heat-sealing head.
Described copper wire lead-in wire cassette injection moulding sealing device comprises a polyethylene hopper, the below of described polyethylene hopper is provided with a screw in injection molding machine, the below of described screw in injection molding machine is provided with a runner, described runner is connected with snap gauge tool on, and the below of described upper snap gauge tool is provided with snap gauge tool, between described upper snap gauge tool and described upper snap gauge tool, be provided with a copper wire lead-in wire.
A kind of electric heating cloth, it includes exothermic material, and described exothermic material is electric conduction of carbon fiber silk, carbon fiber according to certain rules with fiberglass braided become cloth, the skin of described exothermic material is provided with an insulated enclosure layer.
Described exothermic material is copper wire.
A preparation method for electric heating cloth, comprises the following steps:
(1) twin-screw Double-mold-head is extruded curtain coating sealing device and is extruded composite high-molecular insulating material to seal:
(2) cut with bound edge film and hot sealing device to the sealing of cutting edge;
(3) with copper wire lead-in wire cassette injection moulding sealing device, cassette sealing is done to copper wire lead-in wire.
Step (2) is included on folding and cutting machine and does bound edge film and the cutting edge step with bound edge film sealed electrical hotting mask.
Beneficial effect of the present invention is, compared with prior art, described a kind of electric heating cloth sealing technology, by extruding the organic polymer polythene material that casting machine is extruded, under the state of polyethylene melting, squeezed gap of compressing into fiber, together with diaphragm seal has been melted in electric heating cloth, combined strength bination is large, sealing, good insulation preformance, can folding, paracentesis resistance is good, uses heat-sealing instrument can cutting the fine of banding, moistureproof, water resistance is good.Use cassette end socket the sealing property at power supply lead wire place can be accomplished optimum degree, underground can be imbedded use, waterproof, fire prevention, corrosion-resistant, durable in use, the carbon fiber electrical heating cloth of this good seal, energy bending, anti-extrusion, humidity, corrosion-resistant, fire prevention, empire cloth through the present invention's sealing has high strength, high elastic modulus, under the environment that plane is placed, higher than the resistance to dart impact strength of other exothermic material.Dielectric strength ability 4500V alternating current.
Accompanying drawing explanation
Fig. 1 is the structural representation that twin-screw Double-mold-head of the present invention extrudes curtain coating sealing device.
Fig. 2 is that bound edge film of the present invention cuts and the structural representation of hot sealing device.
Fig. 3 is the structural representation of copper wire of the present invention lead-in wire cassette injection moulding sealing device.
The naked electric heating yardage roll of 1-; The naked cloth of 2-unreels; 3-first die head; 4-pressure roller; 5-first chill roll; 6-second die head; Single facer electric heating cloth; 8-pressure roller; 9-second chill roll; 10-dual face seals electric heating cloth; 11-rolling; 12-cylinder; 13-cylinder frame; 14-cutting knife; 15-bound edge unreeling material; 16-bound edge polyethylene coiled strip; The upper heat-sealing head of 17-; 18-polytetrafluoro film guide rail; Guide rail is sealed under 19-; 20-polyethylene hopper; 21-screw in injection molding machine; 22-runner; The upper snap gauge tool of 23-; 24-edge sealing electric heating cloth; Snap gauge tool under 25-; 26-copper wire goes between.
embodiment
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
A kind of electric heating cloth preparation facilities, comprises that a twin-screw Double-mold-head extrudes curtain coating sealing device, a bound edge film cuts and hot sealing device and copper wire lead-in wire cassette injection moulding sealing device.Described twin-screw Double-mold-head is extruded curtain coating sealing device and is comprised a naked electric heating yardage roll, the lower right of described naked electric heating yardage roll is provided with one first chill roll, the left side of described chill roll is provided with one second chill roll, the left side of described second chill roll is provided with a rolling, and the top of described first chill roll and described second chill roll is respectively equipped with one first die head and the second die head.The left and right sides of described first chill roll and described second chill roll is equipped with a pressure roller.
Described bound edge film cuts and hot sealing device comprises an air cylinder support, described air cylinder support is provided with a cylinder, described cylinder band is dynamically connected heat-sealing head on, once heat-sealing head to be fixedly arranged on described air cylinder support and to be in the below of described upper heat-sealing head, is provided with a polytetrafluoro film guide rail between described upper heat-sealing head and described lower heat-sealing head.
Described copper wire lead-in wire cassette injection moulding sealing device comprises a polyethylene hopper, the below of described polyethylene hopper is provided with a screw in injection molding machine, the below of described screw in injection molding machine is provided with a runner, described runner is connected with snap gauge tool on, and the below of described upper snap gauge tool is provided with snap gauge tool, between described upper snap gauge tool and described upper snap gauge tool, be provided with a copper wire lead-in wire.
A kind of electric heating cloth, it includes exothermic material, and described exothermic material is electric conduction of carbon fiber silk, carbon fiber according to certain rules with fiberglass braided become cloth, the skin of described exothermic material is provided with an insulated enclosure layer.Described exothermic material is copper wire.
A preparation method for electric heating cloth, comprises the following steps:
(1) twin-screw Double-mold-head is extruded curtain coating sealing device and is extruded composite high-molecular insulating material to seal:
(2) cut with bound edge film and hot sealing device to the sealing of cutting edge;
(3) with copper wire lead-in wire cassette injection moulding sealing device, cassette sealing is done to copper wire lead-in wire.
Step (2) is included on folding and cutting machine and does bound edge film and the cutting edge step with bound edge film sealed electrical hotting mask.
Please refer to shown in Fig. 1, by described electric heating cloth coiled strip 1, be placed on extrude compounding machine unreel portion, electric heating cloth is now the naked electric heating cloth not doing any insulation processing, 2 is that naked cloth unreels and passes between the first chill roll 5 and silica gel roller, extrude the first die head 3 and the fire retardant of high density polyethylene (HDPE) material HTA108 and 1% is fused into the pouring of 150um thick hot melt PE film on a face of naked electric heating cloth, now produce certain pressure between silica gel roller 4 and chill roll, the cylinder pressure gage of silica gel roller 4 is 2.8MPa, can the polyethylene material of hot melt be got into inside interfibrous gap, increase the peel strength between density polyethylene film with high and carbon fiber electric heating cloth.Drench and have the electric heating cloth of polymeric seal film under the cooling of the first chill roll 5, the polyethylene film of high temperature cools down gradually and solidifies, and 7 is the electric heating cloths having insulating sealing materials through the cooled one side of chill roll.Material 7 is through next second chill roll 9 and silicon rubber pressure roller 8, extrude the second die head 6 and the flame retardant masterbatch of high density polyethylene (HDPE) HTA108 and 1% is fused into the thick PE film pouring of 150um at the back side of material 7, the polyethylene film of hot melt is got into the gap between the fiber of electric heating cloth by the pressure of the generation between silicon rubber pressure roller 8 and chill roll, the cylinder pressure of silicon rubber pressure roller is also 2.8MPa, from chill roll material 10 out, the two-sided of it has high density polyethylene (HDPE) sealing film, at this moment the gross thickness of material is 500um, the rolling speed 80m/min of equipment, have the electric heating cloth of dual face seals material take-up diameter can accomplish 1200mm, this twin-screw Double-mold-head extrudes compounding machine can be in batches, high-speed production.
Please refer to Fig. 2, this machine is that bound edge film folding is cut and sealed dual-purpose machine with bound edge, and described bound edge film is used to the sheared edge of the electric heating cloth sealed through shearing.The bound edge film that the present invention uses is the density polyethylene film with high that the 150um that produced by blown film factory is thick, this film rise the diaphragm seal that envelope temperature drenches out than casting machine to play envelope temperature high 30 DEG C, the coil diameter 400mm of bound edge film.
Crimping cylinder 12 in Fig. 2, it promotes upper heat-sealing head 17 and moves up and down, cylinder is arranged on above air cylinder support 13, upper heat-sealing head is fixed a cutting knife 14, bound edge film 15 is the monofilms unreeling out from bound edge coiled strip 16, described bound edge film folds by polytetrafluoro film 18 flanging track the model come by arc, bound edge film is advanced to polytetrafluoro film 18, the arc orbit that bound edge film can install polytetrafluoro film runs, encounter cutting knife 14 can stop, at this moment cylinder 12 is started descending, cutting knife 14 can move down with upper heat-sealing head 17, cutting knife 14 can cut off film bound edge film 15, the design temperature of upper-lower heat seal head is all 80 DEG C, heat-sealing head can become " > " shape bound edge film crimping, bound edge film is made " > " shape, conveniently the sealing of incision bound edge is cut out to electric heating cloth.
Described flanging sealing, after being that cylinder 12 lifts, unloads cutting knife 14.Bound edge film cuts into " > " and has just stayed afterwards in polytetrafluoro arc orbit, the electric heating cloth of polyethylene film is had to put " > " shape bound edge film into trimming, two-sided, after the temperature of upper-lower heat seal head reaches 180 DEG C, heat-sealing pressure 2.8MPa, the heat-sealing time is set to 1s, and cylinder moves down, and just the heat-sealing of the bound edge film of " > " shape is being had on the polymeric seal film of front and back, sealing-strength is large, and edge sealing is effective.
Described cassette sealing, please refer to Fig. 3 copper wire lead-in wire cassette sealing injection molding machine, it is characterized in that, use polyethylene injection molding machine, injection molding machine hopper 20 splendid attire high-density polyethylene plastics particle, heat through screw rod 21, shear, extruding becomes liquid vinyon particle hot melt, upper and lower clip type mold 23 and 25 is given through runner 22, square three-dimensional thin slice can be injected, material due to the sealing surface of electric heating cloth 24 is also density polyethylene film with high, the external insulation protective layer of copper wire lead-in wire 26 is also polythene material, the square cassette diaphragm seal so extruded inside injection mold 23 and 25 and the sealing surface of electric heating cloth, the outer layer insulation protective layer hot melt of lead-in wire together, this completes the cassette sealing of copper wire lead-in wire, this cassette good seal performance, moisture vapor transmission does not wet, waterproof, involution is tight.
The object of the invention is to be realized by following technical step:
One, front and back extrudes composite high-molecular insulating material to seal:
A kind of electric heating cloth that the present invention relates to, this is a kind of base material be woven into by 3 kinds of materials, described 3 kinds of materials are by glass fiber, the fine base carbon fibre of polypropylene and diameter 0.2mm copper wire bundle are by certain heat conducting law, the cloth that the mode that turnover goes between weaves, wherein longitudinal: 99% warp is glass fibre, 1% is copper braided wires electrode terminal, latitude direction: 60% is glass fibre, 40% is carbon fiber exothermic wire, the braiding interval of carbon fiber is 10mm, copper wire warp is distributed in the both sides of heating cloth, all latitudinal carbon fibers are together in parallel, this has just become carbon fiber heating cloth.The carbon fiber that these positive back sides are exposed and copper wire lead-in wire externally can conduct electricity, and can not be used for doing the electric heating cloth of warming oneself, insulating material must be used to be sealed could be used.The electric heating cloth that the present invention uses purchase with the form of coiled strip, extrudes for next step adopts the convenience that composite insulating material brings, can high speed, do not produce in batches with shutting down.
Please refer to Fig. 1, the sealing means of described carbon fiber electric heating cloth, what adopt is twin-screw, Double-mold-head extrudes compounding machine, the present invention with carbon fiber electric heating cloth for base material, the high molecular polymer gone out from the die head curtain coating extruding compounding machine is drenched and does sealed insulation film at the positive back side of electric heating cloth, the film insulating material that the present invention uses is high-density polyethylene material, the particle trade mark is HTA108, it is the high-performance particle that Exxon Mobil chemical industry is produced, this inside particles has been mixed with a certain amount of slipping agent, antiblocking agent, the functional additives such as heat stabilizer, in order to make film material, there is fire protecting performance, the polyethylene anti-flaming masterbatch of 1% is added when stirring HTA108 plastic pellet, electric heating cloth is made to have fire resistance.
The thickness in monolayer 150um of the dielectric film that described extrudate flow extends, when extruding casting films, there is large-scale water cooled rolls, the base material of curtain coating is cooled, shaped, the casting films extruded has high temperature resistant a, anti-sticking roller when just contacting with base material, produce high pressure between it and chill roll, this silica gel roller can be got in the fiber gap of carbon fiber electric heating cloth the HDPE plastic of hot melt, can combined strength bination between reinforced insulation film and electric heating cloth.But the too little meeting of pressure of silica gel roller causes the combined strength bination of dielectric film not high, pressure too conference, loose for carbon fiber pressure, makes carbon fiber local electrical resistance increase.
Described when film HDPE, use silicon rubber pressure to meet the peel strength between dielectric film and electric heating cloth at the pressure energy of 2.8MPa, also do not affect the conduction of carbon fiber, heating property.Adopt the gross thickness 500um extruding the electric heating cloth of compound function processing of twin-screw, Double-mold-head, winding portion can receive diameter 1200mm, and the length of a volume has the electric heating cloth of 2000m.
Two, the sealing of instrument to cutting edge is cut with heat-sealing folding
The electric heating cloth that client needs is by certain size, with for order unit.And electric heating cloth one volume that we provide is 2000m, so the process cut by given size, the carbon fiber just having conduction, the copper wire conductive lead wire of the cutting edge of electric heating cloth can be outside exposed, the insulating properties of electric heating cloth can be reduced on the one hand, that causes in use is dangerous, on the other hand, the sealing property of electric heating cloth reduces greatly, moist, steam all can penetrate into layer from the cutting edge of electric heating cloth, can be short-circuited and corrosion phenomenon, use dangerous, shown to cutting edge carry out bound edge, sealing very important.Also need following two steps just can complete sealing to cutting edge:
1, on folding and cutting machine, bound edge film is done
The material of described bound edge film is also high-density polyethylene material, thickness is 150um, thered is provided in the mode of coiled strip by blown film factory, the envelope temperature that rises of the bound edge film that the present invention chooses exceeds 30 DEG C than the envelope temperature that rises of extruded stock HTA108, selecting materials so easily makes heat be delivered on extruded film, makes edge sealing firm.
As shown in Figure 2, be a folding and cutting machine, can cut required bound edge film, described bound edge One-sided Widths is 35mm, cuts, is hot pressed into " > " shape.
Cutting process of the present invention is, folding and cutting machine have one cut platform, platform there is cylinder, heat-sealing head is had below cylinder, upper heat-sealing head is fixed a cutting tool, fix the polytetrafluoro adhesive tape of a semicircular arc in the centre of upper-lower heat seal head, the adhesive tape of this semicircular arc is the guide rail that bound edge is pushed ahead, and stop position is cutting knife.When cylinder is descending, cutting knife first cuts off bound edge film, and the heat-sealing head of 80 DEG C pushes down the bound edge film of flanging, and pressure is at this moment 3kgf, pressing time 1s, and bound edge film will be surrendered and be folded in half into " > " shape under certain pressure and temperature.
2, with the cutting edge of bound edge film sealed electrical hotting mask
Make abundant have the shape bound edge film of flanging " > " after, the cutting knife on folding and cutting machine is unloaded down, and at this moment folding and cutting machine just becomes heat-sealing instrument.The temperature of the upper-lower heat seal head of heat-sealing instrument is raised to 180 DEG C, then the bound edge film of band " > " shape is wrapped on the cutting edge of Electric radiant Heating Film, they are sent into below hot knife, there is the polytetrafluoro adhesive tape of circular arc to play the effect stopping the displacement of bound edge film below hot knife, can also buffer action be played.After preventing polyethylene film from melting, counter being bonded at seals on cutter.
Folding cuts heat-sealing instrument under the promotion of cylinder, and heat-sealing cutter just effectively can seal the cutting edge of Electric radiant Heating Film, can meet the needs of client completely.
Three, cassette sealing is done to copper wire lead-in wire
Described copper wire lead-in wire refers to the copper wire live wire that carbon fiber parallel is coupled together and the copper wire zero line of braiding in Electric radiant Heating Film, in order to external power supply is introduced Electric radiant Heating Film, the copper wire line woven in Electric radiant Heating Film is needed to be stripped out, with ultrasonic wave metal point welding machine power line together with the copper wire wire bonding in Electric radiant Heating Film, at this moment soldering tip is just exposed in outside, the present invention's injection molding machine is packaged into card form exposed joint, the material of plastic cards is also high-density polyethylene material, the same with the material extruding casting films, melting high density polyethylene (HDPE) in mould is also melted in the surface of casting films together, card end socket is also melted in the outsourcing plastics of copper wire lead-in wire together, the encapsulation of power supply lead wire can be met completely with cassette encapsulation, sealing property fullys meet requirement.Exposed carbon fiber conductor is had in the cloth cover of electric heating cloth, cloth.The present invention adopts that twin-screw Double-mold-head coextrusion process is disposable completes the face of electric heating cloth and the insulated enclosure process of lining.Electric heating cloth needs to cut to install and use, and described cutting edge needs encapsulation process, and the present invention uses heat-sealing, folding is cut dual-purpose machine and taked sealing to cutting edge.What in electric heating cloth, connect heating carbon fiber heating silk is the copper wire be woven in electric heating cloth, and external power supply is connected with the copper wire of electric heating cloth by wire, and sealing the present invention of the copper wire terminals in wire and electric heating cloth takes cassette Sealing Method.The plastic pellet of the high density polyethylene (HDPE) HTA108 trade mark that the plastic pellet Dou Shi Exxon Mobil company that double screw extruder uses produces, in this plastic pellet, add the polyethylene anti-flaming masterbatch of 1%, described sealing electric heating is furnished with fire prevention, fire-retardant characteristic.Thickness through the casting films of twin-screw extrusion is all that 150mm is thick, and the gross thickness of the electric heating cloth produced is 500um.The pressure of the two silicon rubber pressure roller of twin-screw extrusion compounding machine is all 2.8MPa.The thickness of bound edge film is also 150um, bound edge width 35mm, and bound edge film is also Flame-retardant Hdpe film.An envelope temperature of bound edge film is higher 30 DEG C than an envelope temperature of high density polyethylene (HDPE) HTA108.
A heat-sealing is adopted to sealing the present invention of cutting edge, folding cuts dual-purpose machine, describedly cut cylinder, cylinder is fixed on bracing frame, described heat-sealing head is installed one cutting tool, cutter can disassemble, described upper-lower heat seal head, the arc orbit that a polytetrafluoro adhesive tape is made is fixed between upper-lower heat seal head, described polytetrafluoro arc orbit can make bound edge film turn back in track and doubling, described polytetrafluoro adhesive tape plays the antiseized effect of isolation when sealing trimming, described polytetrafluoro adhesive tape plays when sealing bound edge film and stops to bound edge film the effect preventing bound edge film to be shifted.Utilization seals, folding is cut dual-purpose machine and first bound edge film folding is cut into " > " shape.At this moment the temperature of heat-sealing head is set to 80 DEG C, cylinder pressure 3MPa.When the heat sealing functions of dual-purpose machine is cut in use heat-sealing, folding, bound edge film folding being cut into " > " shape can seal the trimming of electric heating cloth, and heat-sealing temperature is 180 DEG C.Injection molding machine is used to carry out cassette encapsulation to power connection to the lead-in wire of electric heating cloth.
The invention discloses a kind of sealing technology of electric heating cloth, according to electric heating cloth with the characteristic of the appearance of coiled material, we select twin-screw Double-mold-head high speed extrusion compounding machine, by the form extruding curtain coating, can carry out disposable curtain coating sealing by batch to the front and back of electric heating cloth.Through well-chosen in the selection of casting films, select that there is high barrier high density polyethylene (HDPE), according to electric heating cloth surface pattern, principal fiber diameter and environment for use feature on expressing technique, have adjusted die lip gap, extrude the casting films of suitable thickness.
The present invention is by a square buying when using according to electric heating cloth, install, so just need there being the two-sided electric heating cloth extruding sealing to cut, in order to improve the sealing to cutting edge, disclose a kind of heat-sealing, folding cuts dual-purpose machine, describedly first bound edge film to be cut, crimping becomes " > " shape, the present invention is by the polytetrafluoro circular guideway on folding and cutting machine, bound edge film is made to move forward and turn back by the circular arc on track, cylinder through described folding and cutting machine advances, cutting knife is had in the side of heat-sealing head, after bound edge film is cut off, heat-sealing head can become " > " shape bound edge film in backfin after heating, then the cutting edge of described electric heating cloth is put into the corner that crimping becomes " > " shape bound edge, start heat-sealing instrument, just can the heat-sealing of bound edge film just, in the casting films at the back side, complete the sealing to cutting edge.
The present invention, in the sealing of Electric radiant Heating Film copper wire lead-in wire, discloses a kind of seal approach using injection molding machine to dock the end of a thread to carry out, although, injection molding machine is a kind of plastic processing instrument of routine, but on this electric heating cloth, adopt cassette to seal, successful, features simple and practical process.
The present invention relates to a kind of insulated enclosure mode of exposed low-temperature heating carbon fiber cable, this low-temperature heating carbon fiber cable take glass fibre as skeleton, copper wire is conductive lead wire, employing warp, weft knitting are made into thermal radiation cloth and carry out electric heating, six faces of this carbon fiber low-temperature heat cloth are all exposed, so the present invention not only will take insulated enclosure to six faces, also cassette sealing to be done to copper wire lead-in wire
Above embodiment has just set forth general principle of the present invention and characteristic; the present invention is not restricted to the described embodiments; under the premise without departing from the spirit and scope of the present invention, the present invention also has various change and change, and these changes and change all fall in the claimed scope of the invention.Application claims protection range by appending claims and etc. thing define.
Claims (9)
1. an electric heating cloth preparation facilities, is characterized in that, comprises that a twin-screw Double-mold-head extrudes curtain coating sealing device, a bound edge film cuts and hot sealing device and copper wire lead-in wire cassette injection moulding sealing device.
2. electric heating cloth preparation facilities according to claim 1, it is characterized in that, described twin-screw Double-mold-head is extruded curtain coating sealing device and is comprised a naked electric heating yardage roll, the lower right of described naked electric heating yardage roll is provided with one first chill roll, the left side of described chill roll is provided with one second chill roll, the left side of described second chill roll is provided with a rolling, and the top of described first chill roll and described second chill roll is respectively equipped with one first die head and the second die head.
3. electric heating cloth preparation facilities according to claim 2, is characterized in that, the left and right sides of described first chill roll and described second chill roll is equipped with a pressure roller.
4. electric heating cloth preparation facilities according to claim 1, it is characterized in that, described bound edge film cuts and hot sealing device comprises an air cylinder support, described air cylinder support is provided with a cylinder, described cylinder band is dynamically connected heat-sealing head on, once heat-sealing head to be fixedly arranged on described air cylinder support and to be in the below of described upper heat-sealing head, is provided with a polytetrafluoro film guide rail between described upper heat-sealing head and described lower heat-sealing head.
5. electric heating cloth preparation facilities according to claim 1, it is characterized in that, described copper wire lead-in wire cassette injection moulding sealing device comprises a polyethylene hopper, the below of described polyethylene hopper is provided with a screw in injection molding machine, the below of described screw in injection molding machine is provided with a runner, described runner is connected with snap gauge tool on, and the below of described upper snap gauge tool is provided with snap gauge tool, is provided with a copper wire lead-in wire between described upper snap gauge tool and described upper snap gauge tool.
6. an electric heating cloth, is characterized in that, it includes exothermic material, and described exothermic material is electric conduction of carbon fiber silk, carbon fiber according to certain rules with fiberglass braided become cloth, the skin of described exothermic material is provided with an insulated enclosure layer.
7. electric heating cloth according to claim 6, is characterized in that, described exothermic material is copper wire.
8. a preparation method for electric heating cloth, is characterized in that, comprises the following steps:
(1) twin-screw Double-mold-head is extruded curtain coating sealing device and is extruded composite high-molecular insulating material to seal:
(2) cut with bound edge film and hot sealing device to the sealing of cutting edge;
(3) with copper wire lead-in wire cassette injection moulding sealing device, cassette sealing is done to copper wire lead-in wire.
9. the preparation method of electric heating cloth according to claim 8, is characterized in that, step (2) is included on folding and cutting machine and does bound edge film and the cutting edge step with bound edge film sealed electrical hotting mask.
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| CN201410027616.8A CN104981035A (en) | 2014-04-10 | 2014-04-10 | Electric heating cloth and preparation method and apparatus thereof |
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| CN105073368B (en) * | 2013-03-20 | 2017-08-01 | 利乐拉瓦尔集团及财务有限公司 | Sealing strip |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105073368B (en) * | 2013-03-20 | 2017-08-01 | 利乐拉瓦尔集团及财务有限公司 | Sealing strip |
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| CN109803460B (en) * | 2019-03-11 | 2021-09-14 | 中山市君泽科技有限公司 | Preparation method of graphene-based far-infrared electrothermal film without coating and printing |
| CN110901004A (en) * | 2019-12-17 | 2020-03-24 | 南安泊阅工业设计有限公司 | Polypropylene braided bag production and processing film extrusion equipment |
| CN114905695A (en) * | 2022-05-26 | 2022-08-16 | 河南问暖电子科技有限公司 | Sealing method for connecting part of vacuum packaging electrothermal film and terminal |
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