CN103921447A - Hot air punching film and forming method thereof - Google Patents
Hot air punching film and forming method thereof Download PDFInfo
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- CN103921447A CN103921447A CN201410131725.4A CN201410131725A CN103921447A CN 103921447 A CN103921447 A CN 103921447A CN 201410131725 A CN201410131725 A CN 201410131725A CN 103921447 A CN103921447 A CN 103921447A
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- hole
- hot blast
- plastic sheeting
- punching
- hot air
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Abstract
The invention relates to a hot air punching film and a forming method thereof, wherein high-temperature hot air is combined with a punching hole forming die roller to forcedly form a hot air punching film with naturally shrinkable convex edge on a polymer plastic film surface. The plastic film surface is provided with a plurality of through holes, and the edges of the through holes in the plastic film surface are naturally shrinkable convex edges. The hot air punching film has the advantages that: firstly, the hot air punching film formed by high-temperature air flow radically solves the problems that the edge of a hole punched by flames is burned, the flexibility of the plastic film is damaged by the burned hole edge, and secondary injury to skin, particularly to skin wound is caused, thereby ensuring the flexibility of the punched hole edge; secondly, due to adoption of the hot air punching, pollution of harmful gases to the punched plastic film surface and to atmosphere environment is completely avoided, so that the safety of the punched plastic film is guaranteed fundamentally; and thirdly, the hot air punching is adopted to ensure the flexibility and the smoothness of the plastic convex edge.
Description
Technical field
The present invention relates to a kind of high-temperature hot-air that utilizes and combine with punching hole forming mould roller, force macromolecule plastic film face to form hot blast making hole film and the manufacturing process with natural shrinking chimb, belong to making hole film and manufacture field.
Background technology
CN10131581B, title " flame-perforated aperture mask ", the invention provides the method for manufacturing this aperture mask, comprises the following steps: area supported is provided, and wherein said area supported comprises a plurality of reduction parts; Burner is provided, wherein said burner supporting flame, and its Flame comprises the flame tip relative with described burner; Make at least a portion of elongated flexible plastic film web lean the described area supported of contact; And heat described plastic sheeting with the flame that is derived from burner, with the described a plurality of region generating holes that reduce part of the covering at described plastic sheeting.Its weak point: the one, no matter be that (main component is CH with natural gas
4), (main component is H to piped gas
2, CH
4, CO), or liquefied petroleum gas (main component is C
3h
8, C
4h
10, C
3h
6, C
4h
8) genus micro-virus kind material, when its combustion flame heating PET, PP, PE, nylon plastic(s) film, its flame is in heat fused PET, PP, PE, nylon plastic(s) film moment, its flame not only makes to melt hole limit and produces deeply worried, the pliability of plastic sheeting has directly been destroyed on this deeply worried hole limit, skin, particularly wound face are produced to friction, make dermal sensation uncomfortable, affect the healing of wound face; The 2nd, adopt the molten hole of flame, the pernicious gas producing during its gas fuel burning directly, to being polluted by molten plastic sheeting face and atmosphere generation, affects the security that plastic sheeting is used.
Summary of the invention
Purpose of design: avoid the weak point in background technology, design a kind of high-temperature hot-air that utilizes and combine with punching hole forming mould roller, force macromolecule plastic film face to form hot blast making hole film and the manufacturing process with natural shrinking chimb.
Design: in order to realize above-mentioned purpose of design.When the present invention heats wind by heater, make wind when by wind heater outlet, form bar shaped high temperature blade air-flow, this bar shaped high temperature blade airflow function is on pellicular front, because plastics cover on the face of the punching hole forming mould roller that is covered with groove surface, therefore the bar shaped high temperature blade air-flow acting on plastic sheeting forces plastic sheeting face gas to be melt into and the identical hole of hole shaping mould roll surface groove shapes that punches with punching hole forming mould roller together, and this hole limit natural shrinking becomes chimb.The object of design is like this: because perforated plastic films is mainly used in medical dressing, and the very thin thickness of plastic sheeting, after plastic sheeting working into coil, be difficult to carry out secondary sterilization to moulding the face of material film, and guarantee that again the limit, hole after being shaped has good pliability and slickness, how to solve this difficult problem is one of technical barrier of puzzlement this area all the time.For this reason in structural design, the present invention is designed to hot blast natural shrinking chimb by the through hole hole limit of moulding on material pellicular front, because high temperature hot gas stream itself adopts pure air heating, and high temperature itself just has the effect of sterilization, therefore the present invention adopts high temperature hot gas stream in punching, not only make hole limit self-assembling formation there is the chimb of arc shape, and the chimb of this arc shape is owing to being subject to Wen Wendu to be less than fusing point, thereby can not produce deeply worried to moulding material film limit, pliability and the slickness of plastics chimb are kept simultaneously, plastic sheeting face has been played to the effect of sterilization, having solved those skilled in the art wants to solve but unsolved technical barrier for a long time.Secondly, a plurality of through hole hole natural shrinking chimbs on plastic sheeting face, had both played the effect of supporting, when having reduced the contact area of human skin and plastic sheeting, shrink the passage forming between chimb and be conducive to distributing of human heat, accelerate the healing of wound face.
Technical scheme 1: a kind of hot blast making hole film, plastic sheeting face has a plurality of through hole holes, and the limit of a plurality of through hole holes on described plastic sheeting face is hot blast natural shrinking chimb.
Technical scheme 2: a kind of manufacturing process of hot blast making hole film, during plastic sheeting process punching hole forming mould roller, plastic sheeting face is attached to the punching hole forming mould roller roll surface in rotation, now be positioned at the bar shaped high temperature blade airflow function of punching hole forming mould roller roll surface upper end on plastic sheeting face, and the plastic sheeting gas covering on punching hole forming mould roller roll surface is melt into and the identical hole of hole shaping mould roll surface upper groove shape that punches.
The present invention compares with background technology, the one, the hot blast making hole film of employing high temperature gas flow moulding, fundamentally solved the generation of the deeply worried phenomenon in flame-perforated hole limit, and this deeply worried hole limit flexible destruction to plastic sheeting, and to skin, particularly skin trauma face secondary injury, guaranteed the pliability on punching gap limit; The 2nd, adopt thermal current punching, the pollution of its pernicious gas to the plastic sheeting face that is perforated while fundamentally having avoided gas fuel burning, and to the pollution to atmospheric environment, makes the security of perforated plastic films obtain the assurance of essence; The 3rd, adopt thermal current punching, both guaranteed pliability and the slickness of plastics chimbs, again plastic sheeting face has been played the effect of sterilization.
Accompanying drawing explanation
Fig. 1 is the structural representation in hot blast making hole film (polygon hole).
Fig. 2 is the structural representation of hot blast making hole film (tri-angle-holed).
Fig. 3 is hole limit sectional structure schematic diagram.
Fig. 4 is the structural representation of electrical heating radiation punching hole film device.
Fig. 5 is the partial structurtes schematic diagram of electrical heating radiation air-out die head.
Fig. 6 is the schematic diagram that electrical heating radiation air-out die head has bar shaped heat radiation air outlet.
Fig. 7 is the structural representation of punching hole forming mould roller.
The specific embodiment
Embodiment 1: with reference to accompanying drawing 1-3.A hot blast making hole film, plastic sheeting 1 face has a plurality of through hole holes, and the limit of a plurality of through hole holes 2 on 1 of described plastic sheeting is hot blast natural shrinking chimb 3.Described hot blast shrinks 3 of chimbs, and there is no described in flame mark through hole hole be that circular hole or rectangular opening or tri-angle-holed or polygonal hole and hole limit are hot blast natural shrinking chimb 3, and described hot blast natural shrinking chimb 3 is shaped as natural shrinking arc-shaped side.
Embodiment 2: with reference to accompanying drawing 4-7.On the basis of embodiment 1, a kind of manufacturing process of hot blast making hole film, during plastic sheeting 1 process punching hole forming mould roller 9, plastic sheeting 1 face is attached to punching hole forming mould roller 9 roll surfaces in rotation, now be positioned at the bar shaped high temperature blade airflow function of punching hole forming mould roller 9 roll surface upper ends on 1 of plastic sheeting, and the plastic sheeting gas covering on punching hole forming mould roller 9 roll surfaces is melt into and the identical hole of hole shaping mould roll surface upper groove shape that punches.Bar shaped high temperature blade gas flow temperature is not more than plastic sheeting fusing point, can form pliable and tough smooth arc-shaped side by means of the punching of band pressure gas stream like this, avoids again the deeply worried of plastic sheeting hole limit.The temperature of bar shaped high temperature blade air-flow is directly proportional to the speed that wind speed and plastic sheeting pass through.
Example: electrical heating radiation punching hole film device, comprise controller, two guide rolls support guide plates 3 are fixed in frame 1 relatively, punching hole forming mould roller 9 two ends are arranged on the guide rolls support portion of guide rolls support guide plate 3, two guide pads 5 slide up and down and coordinate with guide groove on two guide rolls support guide plates 3 respectively, because two guide pad upper surfaces are connected with cylinder piston, guide pad face is connected with electrical heating radiation air-out die head two ends, and electrical heating radiation air-out die head lower surface is relative with punching hole shaping mould roll surface, when cylinder drives guide pad to move up and down, guide pad drives electrical heating radiation air-out die head to move up and down, both realized adjustable cooperation the between the gap between electrical heating radiation air-out die head and punching hole forming mould roller, facilitate again electrical heating radiation air-out die head to change and adjust.Electrical heating radiation air-out die head 8 two ends are connected with guide pad 5 respectively and guide pad 5 upper surfaces are connected with cylinder 6 piston rods.Electrical heating radiation air-out die head consists of hot blast radiating enclosures, electric heating body, airduct, hot blast radiating enclosures upper end has a plurality of air inlets, lower end has bar shaped heat radiation air outlet and a plurality of air inlet is communicated with airduct by branch wind pipe respectively, airduct is communicated with wind regime by wind conveying pipe, and electric heating body is positioned in or beyond hot blast radiating enclosures and is connected with controller electric heating control end by wire, due to the hot blast radiating enclosures of the electrical heating radiation air-out die head hollow cavity that is wall thickness, cavity upper end has air inlet, the centre of cavity lower surface has bar shaped air outlet, in cavity or on cavity wall, be equipped with electric heating body, electric heating body obtains electric heating cavity is heated, cavity heats the wind entering in it, make the temperature of wind reach needed temperature, high-temperature hot-air after heating from the bar shaped air outlet ejection with pressure of cavity lower surface and direct effect to plastic sheeting face, force plastic sheeting to be attached to punching hole shaping mould roll surface and join entirely with the shrinkage pool of punching hole shaping mould roll surface, force hot blast with pressure through plastic sheeting, make plastic sheeting face be covered with hole.The densely covered groove 91 of roll surface of punching hole forming mould roller 9.Being shaped as circle or rectangle or not advising side shape of groove 91.The trough rim edge that is covered with recess hole due to punching hole forming mould roller roll surface is right-angle side, when plastic sheeting tensioning under the effect of front and back roller is attached on punching hole forming mould roller roll surface recess hole just as to recess cover one deck sealed plastic film lid, make groove cavity relative with atmosphere isolated, and the plastic sheeting being positioned on groove surface has lost rigid support, and on groove mouth plastic sheeting face under the effect of front and back roller again in tensioning state, now work as bar shaped high temperature blade airflow function in the moment of groove plastic sheeting face, moment is melted open form and is become hole under bar shaped high temperature blade airflow function, to be positioned at plastic sheeting on punching hole shaping mould roll surface groove mouth.Electrical heating radiation air-out die head 8 lower surface bar draughts are relative with 9 of punching hole forming mould rollers.Electrical heating radiation air-out die head 8 is by hot blast radiating enclosures 81, electric heating body 82, airduct 7 forms, hot blast radiating enclosures 81 upper ends have a plurality of air inlets 83 and a plurality of air inlet 83 is communicated with airduct 7 by branch wind pipe 85 respectively, airduct 7 is communicated with wind regime by wind conveying pipe, hot blast radiating enclosures 81 lower ends have bar shaped heat radiation air outlet 84, because the width of bar draught is less than diameter or the width of punching hole shaping mould roll surface groove, when bar shaped high temperature blade air-flow sprays from bar draught, the moment that its bar shaped high temperature blade air-flow acts on plastic sheeting face just as a sharp blade can be melted the plastic sheeting on punching hole forming mould roller groove surface to open, form the hole conforming to groove shapes.Electric heating body 82 is positioned at hot blast radiating enclosures 81 and is connected with controller electric heating control end by wire, or electric heating body 82 travelling expenses are connected with controller electric heating control end with it and by wire at hot blast radiating enclosures 81, controller is the combination of electrical heating controller and temperature controller, its manufacturing technology is prior art, at this, is not described herein.Electric heating body 82 is electric heating tube or heating using microwave or high-frequency heating.Electrical heating radiation air-out die head 8 leaving air temps are according to the material that is heated plastic sheeting, its heating power is adjustable, because the fusing point of PET, PP, PE, nylon plastic(s) film is different, the present invention becomes the power designs of the electric heating body in electrical heating radiation air-out die head can timing, and it can meet the punching of unlike material plastic sheeting hole.The spacing of electrical heating radiation air-out die head 8 and punching hole forming mould roller opposite face Shang Xia 9 is less than 30 millimeters.In electrical heating radiation air-out die head 8, hot blast radiating enclosures adopts stainless steel material to make or adopts copper material or carbon steel, and the best is stainless steel material.Because stainless steel electrothermal tube is to take metal tube as shell, along central shaft in pipe, to its space padding and compacting of distributing auger lectrothermal alloy wire (nickel chromium triangle, ferrochrome), there is the magnesium oxide sand of good insulation heat conductivility, silica gel or ceramic seal for mouth of pipe two ends, this metal armouring heating can add hot-air, metal die and various liquid.High-temperature electric resistance furnace silk distributes equably in high temperature resistant stainless steel seamless pipe, in gap, insert densely all good crystal magnesium oxide powder of heat conductivility and insulating properties, this structure is not only advanced, the thermal efficiency is high, and heating evenly, while having electric current to pass through in high temperature resistance silk, the heat of generation spreads to metal tube surface by crystal magnesium oxide powder, be delivered to again heated object, thereby reach the object of heating.Guide groove bottom on two guide rolls support guide plates 3 is provided with limited support piece 5.This back-up block 5 both can reliably limit the spacing of electrical heating radiation air-out die head air nozzle and punching hole forming mould roller roll surface, can to the requirement of temperature, pressure, adjust electrical heating radiation air-out die head air nozzle and the spacing of hole forming mould roller roll surface of punching according to being melted porous material again, thereby guarantee the spacing science adjustment between electrical heating radiation air-out die head air nozzle and punching hole forming mould roller roll surface.Punching hole forming mould roller 9 exit sides are provided with one group or two groups of chill rolls 10 and 11, and chill roll 10 forms by cooling bottom roller is relative with rubber rollers with 11, and its manufacturing technology and cooling by water principle are prior art, at this, are not described herein.Because chill roll forms by cooling bottom roller is relative with rubber rollers, when plastics plastic sheeting is after front and back operation punching hole is shaped, it can either carry out cooling processing to the plastic sheeting after being shaped, can in the process of cooling processing, guarantee that again the shape of hole can not be damaged, again plastic sheeting played the effect of tensioning simultaneously.Frame 1 is provided with guide roller 12 and many carrying rollers.
The drilling method of its electrical heating radiation punching hole film device, when plastic sheeting is when through bar draught in electrical heating radiation air-out die head 8 and punching hole forming mould roller 9 roll surfaces, hole membrane channels is punched in the relative electrical heating radiation forming up and down, plastic sheeting is being positioned under the effect of electrical heating radiation punching hole membrane channels both sides plastic sheeting roller and chill roll, force plastic sheeting to stick on the roll surface of punching hole forming mould roller 9, make plastic sheeting cover the groove of punching hole forming mould roller 9 roll surfaces, the belt strip super pressure-high temperature hot blast of now electrical heating radiation air-out die head 8 lower end bar draught ejections acts directly on the plastic sheeting of punching hole forming mould roller 9 roll surfaces, and the plastic sheeting gas covering on punching hole forming mould roller 9 roll surface recess holes is melt into hole.Electrical heating radiation air-out die head 8 temperature are controlled at 450-550 degree.Electrical heating radiation air-out die head 8 temperature are controlled at 450-550 degree, and the leaving air temp of electrical heating radiation air-out die head 8 bar shaped heat radiation air outlets and wind speed and plastic sheeting by by electrical heating radiation air-out die head 8 and punching hole forming mould roller 9 up and down speed during the relative electrical heating radiation punching hole membrane channels forming be directly proportional.
It is to be understood that: although above-described embodiment is to the mentality of designing of the present invention detailed text description of contrasting; but these text descriptions; just the simple text of mentality of designing of the present invention is described; rather than the restriction to mentality of designing of the present invention; any combination, increase or modification that does not exceed mentality of designing of the present invention, all falls within the scope of protection of the present invention.
Claims (7)
1. a hot blast making hole film, plastic sheeting (1) face has a plurality of through hole holes, it is characterized in that: the limit of a plurality of through hole holes on described plastic sheeting (1) face is hot blast natural shrinking chimb (2).
2. hot blast making hole film according to claim 1, is characterized in that: described hot blast shrinks chimb (2) face does not have flame mark.
3. hot blast making hole film according to claim 1, is characterized in that: described through hole hole is that circular hole or rectangular opening or tri-angle-holed or polygonal hole and hole limit are hot blast natural shrinking chimb (2).
4. according to the hot blast making hole film described in claim 1 or 3, it is characterized in that: described hot blast natural shrinking chimb (2) be shaped as natural shrinking arc-shaped side.
5. the manufacturing process of a hot blast making hole film, it is characterized in that: during plastic sheeting (1) process punching hole forming mould roller (9), plastic sheeting (1) face is attached to punching hole forming mould roller (9) roll surface in rotation, now be positioned at the bar shaped high temperature blade airflow function of punching hole forming mould roller (9) roll surface upper end on plastic sheeting (1) face, and the plastic sheeting gas covering on punching hole forming mould roller (9) roll surface is melt into and the identical hole of hole shaping mould roll surface upper groove shape that punches.
6. the manufacturing process of hot blast making hole film according to claim 5, is characterized in that: bar shaped high temperature blade gas flow temperature is not more than plastic sheeting fusing point.
7. the manufacturing process of hot blast making hole film according to claim 5, is characterized in that: the temperature of bar shaped high temperature blade air-flow is directly proportional to the speed that wind speed and plastic sheeting pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131725.4A CN103921447A (en) | 2014-04-03 | 2014-04-03 | Hot air punching film and forming method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131725.4A CN103921447A (en) | 2014-04-03 | 2014-04-03 | Hot air punching film and forming method thereof |
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| CN103921447A true CN103921447A (en) | 2014-07-16 |
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| CN201410131725.4A Pending CN103921447A (en) | 2014-04-03 | 2014-04-03 | Hot air punching film and forming method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676756A (en) * | 2017-03-10 | 2017-05-17 | 佛山市威连冠无纺布有限公司 | Online non-woven fabric perforating system |
| CN107225715A (en) * | 2017-06-26 | 2017-10-03 | 苏州信诺泰克医疗科技有限公司 | The processing method of the pod apertures of integrated fluidway plate and integrated fluidway plate |
| CN110238905A (en) * | 2019-07-23 | 2019-09-17 | 贵州省烟草公司黔南州公司 | A kind of cigarette PE heat shrink films pore-forming equipment |
| CN110520087A (en) * | 2017-03-22 | 2019-11-29 | 莫恩里克保健股份公司 | For manufacturing the method and wound dressing of wound dressing |
| CN111229049A (en) * | 2020-01-14 | 2020-06-05 | 西北工业大学 | Size-controllable micro-nano pore membrane and preparation method and application thereof |
| CN114559654A (en) * | 2022-02-28 | 2022-05-31 | 深圳市创想三维科技股份有限公司 | 3D model punching method and device, terminal device and readable storage medium |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676756A (en) * | 2017-03-10 | 2017-05-17 | 佛山市威连冠无纺布有限公司 | Online non-woven fabric perforating system |
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| CN111229049A (en) * | 2020-01-14 | 2020-06-05 | 西北工业大学 | Size-controllable micro-nano pore membrane and preparation method and application thereof |
| CN114559654A (en) * | 2022-02-28 | 2022-05-31 | 深圳市创想三维科技股份有限公司 | 3D model punching method and device, terminal device and readable storage medium |
| CN114559654B (en) * | 2022-02-28 | 2023-11-28 | 深圳市创想三维科技股份有限公司 | 3D model punching method and device, terminal equipment and readable storage medium |
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Application publication date: 20140716 |