CN103274086A - Method for preventing harmful gas in plastic film package from entering package cavity - Google Patents
Method for preventing harmful gas in plastic film package from entering package cavity Download PDFInfo
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- CN103274086A CN103274086A CN2013102400714A CN201310240071A CN103274086A CN 103274086 A CN103274086 A CN 103274086A CN 2013102400714 A CN2013102400714 A CN 2013102400714A CN 201310240071 A CN201310240071 A CN 201310240071A CN 103274086 A CN103274086 A CN 103274086A
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- heat seal
- package
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- plastic packaging
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- 229920006255 plastic film Polymers 0.000 title claims abstract description 16
- 239000002985 plastic film Substances 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 65
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000002955 isolation Methods 0.000 claims abstract description 8
- 238000004806 packaging method and process Methods 0.000 claims description 39
- 238000005538 encapsulation Methods 0.000 claims description 23
- 238000005520 cutting process Methods 0.000 claims description 18
- 238000001125 extrusion Methods 0.000 claims description 17
- 230000000505 pernicious effect Effects 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 9
- 230000002146 bilateral effect Effects 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000012536 packaging technology Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract 3
- 230000035515 penetration Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 21
- 239000012785 packaging film Substances 0.000 description 17
- 229920006280 packaging film Polymers 0.000 description 17
- 238000012856 packing Methods 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 4
- 235000013361 beverage Nutrition 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 235000012206 bottled water Nutrition 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012858 packaging process Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a method for preventing harmful gas in a plastic film package from entering a package cavity. The method aims at resolving the problem that secondary pollution to packaged objects is easy to produce in the existing heat seal package method and improving reliability. The structure comprises a heat seal cutter die, a heat seal auxiliary piece, a prepress device, a press extruding resetting mechanism and compressed air. A mechanical or mechanical and gas combined blocking isolation structure is added at the position clinging to a package line of a common plastic film heat seal package process, and the blocking isolation structure is arranged along the lateral side of the package line and extrudes a film in a corresponding concave-convex penetration mode to the position smaller than thickness of materials to enable the film to be in a linear extruding shape. The blocking isolation structure is used for preventing the harmful gas produced in the plastic package from entering a package cavity and being subjected to heat conduction. The method is good in practicability, wide in application range, simple in structure and easy to implement.
Description
Technical field
The present invention relates to the packing technique field, especially relate to a kind of plastic sheeting pernicious gas enters cavity package in the heat seal encapsulation method and version avoided.
Background technology
At present, the heat seal packaging technology of known various plastic sheetings is widely used in the packing of food, medicine and cosmetics and articles for daily use, can say that everybody has the product that touches the heat seal plastic sealing pack.Media have report more, the potable water of daily plastic bottle packing or beverage, if be placed on process Exposure to Sunlight in car, have the harmful composition that plastic bottle body dilutes out in potable water or beverage, the direct sunlight time, slightly long plastic bottle water or beverage can not be drunk.Which kind of mode no matter existing plastic sheeting heat seal encapsulation adopt, and it is all to realize the plastic packaging effect so that the mouth of wish involution or the plastic sheeting on face reach molten.Although it is harmless that the plastic packaging film is selected, have in the molten in when encapsulation the pernicious gas that significantly far surpasses Exposure to Sunlight and enter in cavity package, and then be trapped in the pollution that causes in the article of packaging connection with wrapping of piece.Take in the food that is subjected to little pollution or medicine etc. if human body is long-term, it will be to affect the healthy potential safety hazard of people.
disclosed on Chinese patent literature " a kind of heat seal method for packing of plastic sheeting and heat seal package assembling ", its publication number is CN101817408A, by on the basis of existing heat seal method for packing, increase a step, namely before the heat seal package assembling carries out the heat seal encapsulation, first with the location separating element, double-layer films is compressed, making on the one hand film obtain failure-free locates, to be conducive to the heat seal encapsulation, can cut off simultaneously the airiness between packaging line and packing cavity fully, avoid the film hot melt time-division to separate the pernicious gas that produces packing material is caused secondary pollution, described heat seal package assembling can adopt the mode of air pressure or the mode that machinery is pushed down partition.
Summary of the invention
The present invention be for overcome existing heat seal packaged type easily to packing material produce the deficiency of secondary pollution and further technology improve and strengthen reliability, a kind of simple and easy to do mode that in the plastic film encapsulation, pernicious gas enters cavity package of avoiding is provided.
To achieve these goals, the present invention adopts following technical scheme: a kind ofly avoid the mode that in plastic film encapsulation, pernicious gas enters cavity package, it comprises heat seal cutting die, heat seal auxiliary, precompressed device, extrusion Bringing-back mechanism and pressurized air; It is close to the packaging line position common plastic sheeting heat seal packaging technology, increase together and install by corresponding concavo-convex incision extrusion film to being defeated by material thickness along plastic packaging line side, make it to be the mechanical type of linear extruding shape, or further machinery adds the compound type blocking-up isolation structure of gas, enters cavity package and heat conduction in order to the pernicious gas of avoiding the plastic film encapsulation to have.On the flow process operation, first will send into the wish plastic packaging film of station, in the lateral location along the plastic packaging line, by precompressed device and heat seal auxiliary corresponding concavo-convex with mechanical incision extrusion film to the wire shaped of being defeated by material thickness, or be aided with again compressed-air actuated compression, then implement the plastic film encapsulation; After the plastic packaging operation, the device of heat seal plastic packaging leaves film in advance, in rear precompressed device and heat seal auxiliary and film disengagement, thereby realizes cutting off the airiness of packing between cavity and packaging line; Gas and the heat that film has when heat seal can only be shed from outer surface or the packaging line that cuts off, reach actv. and avoid the gas of thin-film package heat seal generation to enter into the conduction of packing cavity and heat, in order to avoid packing material is subject to polluting and hot quality influence of conducting connection with wrapping of piece.
As preferably, described increase installs corresponding concavo-convex incision extrusion film to being defeated by material thickness with plastic packaging line side together, make it to be the mechanical type blocking-up isolation structure of linear extruding shape, plastic packaging line one side is cavity package, adopts one-sided incision extrusion film to the wire shaped of being defeated by material thickness; Plastic packaging line bilateral is cavity package, adopts the incision extrusion film of bilateral to the wire shaped of being defeated by material thickness.Described nemaline profile, unrestricted to satisfy technological requirement; The incision extrusion film with flexibility and the low property led of plastic film itself, realizes that the gas and the heat that have can only shed from outer surface or the packaging line that cuts off to the wire shaped of being defeated by material thickness when heat seal.
As preferably, described further mechanical type adds the compound type blocking-up isolation structure of gas, at mechanical incision extrusion film when being defeated by the wire shaped of material thickness, auxiliary with pressurized air strengthening effect, and make it to avoid fast the heat conduction; Plastic packaging line one side is cavity package, is applied to the one-sided of plastic packaging line; Plastic packaging line bilateral is cavity package, just is applied to the bilateral of plastic packaging line.Be beneficial to guaranteed quality and enhance productivity.
As preferably, described mechanical type incision extrusion film adopts extrusion and the form that resets of elastic component effect, or adopts extrusion and the resetting structure form of pneumatic and hydraulic action to the linear extruding shape of being defeated by material thickness.
As preferably, above-mentioned mode can be applied to circular, abnormity and the heat seal plastic packaging occasion multi-cavity position, or be applied in the continuous heat seal plastic packaging occasion of rolling-type.
The beneficial effect that the present invention brings is, with the incision extrusion film to the mechanical type of being defeated by material thickness and making it to be linear extruding shape, or being aided with the box-like blocking-up isolation structure of gas group, the gas that produces when heat seal is encapsulated effectively cuts off, and avoids pernicious gas to enter cavity package and heat conduction; Its practical applicable surface is extensive, and simple in structure being convenient to implemented.
Description of drawings
Fig. 1 is the structural representation of a kind of film laminating extruding of the present invention shape embodiment;
Fig. 2 is the structural representation that a kind of film laminating of the present invention adds gas embodiment;
Fig. 3 is the structural representation of the involutory extruding shape of a kind of film of the present invention embodiment;
Fig. 4 is the involutory structural representation that adds gas embodiment of a kind of film of the present invention;
In figure: 1, heat seal cutting die, 2, the heat seal auxiliary, 3, the precompressed device, 4, silaatic, 5, pressurized air, 6, the plastic packaging film.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, the present invention is described in further detail.
Embodiment 1: the invention process is in the heat seal encapsulation of the one-sided cavity package of plastic sheeting laminated type.As shown in Figure 1, comprise heat seal cutting die 1, heat seal auxiliary 2, precompressed device 3, silaatic 4 and plastic packaging film 6.It arranges precompressed device 3 in the side of heat seal cutting die 1, when the architectural feature of scheme is heat seal encapsulation action, the effect of silaatic 4, first by precompressed device 3 make put and the plastic packaging film 6 of 2 of heat seal auxiliaries be the extruding shape of negative clearance along plastic packaging line limit, and then implement the heat seal encapsulation; Heat seal packaging process to be completed, heat seal cutting die 1 and heat seal auxiliary 2 separate in advance, silaatic 4 make precompressed device 3 after disengagement heat seal auxiliary 2.It makes plastic packaging line one side of plastic packaging film 6 be the extruding shape of linear negative clearance with precompressed device 3 and heat seal auxiliary 2, flexibility and the low property led of utilizing plastic film itself to have, gas and heat that realization has when heat seal cutting die 1 and heat seal auxiliary 2 heat seal plastic packaging can not enter cavity package, force gas and the heat that the heat seal plastic packaging produces to spread along plastic packaging line direction and position; Be beneficial to the fast spread of the thermoplastic envelope heat that produces separating in advance of heat seal cutting die 1 and heat seal auxiliary 2, silaatic 4 make precompressed device 3 after be separated from heat seal auxiliary 2, make obstruct pernicious gas and heat conducting effect more reliable.Wherein, described precompressed device 3 joins with heat seal auxiliary 2 structure division of making extruding plastic packaging film 6, is set to the one-sided inclined plane shape of head band garden R0.2; The planform of this part only needs to satisfy to make plastic packaging film 6 be the extruding shape of linear negative clearance, and after the plastic packaging operation is completed, plastic packaging film 6 can break away from smoothly.Described silaatic 4, as the device that elasticity is extruded and resetted, selecting is the resistance to effect of heat of considering it with it; This function can be chosen the version of pneumatic or hydraulic pressure and implement.
Embodiment 2: the same heat seal encapsulation that is implemented on the one-sided cavity package of plastic sheeting laminated type.As shown in Figure 2, it has increased pressurized air 5 on the basis of embodiment 1, comprises heat seal cutting die 1, heat seal auxiliary 2, precompressed device 3, silaatic 4, pressurized air 5 and plastic packaging film 6.Described pressurized air 5, be arranged on corresponding to precompressed device 3, the heat seal auxiliary 2 of joining with it work pushes the bottom position that leans on of plastic packaging film 6 planforms, it is opened when precompressed device 3 top compression moulding sealing films 6 to the corresponding cavity of heat seal auxiliary 2 is the extruding shape, closes when the heat seal cutting die 1 after completing the heat seal plastic packaging separates with heat seal auxiliary 2; More strengthen with it and intercept pernicious gas and avoid heat conducting reliability.
Embodiment 3: the invention process is in the heat seal encapsulation of plastic sheeting opposite bilateral cavity package.As shown in Figure 3, comprise heat seal cutting die 1, heat seal auxiliary 2, precompressed device 3, silaatic 4 and plastic packaging film 6.It arranges precompressed device 3 in the two sided of heat seal cutting die 1, when the architectural feature of scheme is heat seal encapsulation action, the effect of silaatic 4, first by precompressed device 3 make put and the plastic packaging film 6 of 2 of heat seal auxiliaries be the extruding shape of negative clearance along plastic packaging line limit, and then implement the heat seal encapsulation; Heat seal packaging process to be completed, heat seal cutting die 1 and heat seal auxiliary 2 separate in advance, silaatic 4 make precompressed device 3 after disengagement heat seal auxiliary 2.It makes the plastic packaging line dual-side of plastic packaging film 6 be the extruding shape of linear negative clearance with precompressed device 3 and heat seal auxiliary 2, flexibility and the low property led of utilizing plastic film itself to have, gas and heat that realization has when heat seal cutting die 1 and heat seal auxiliary 2 heat seal plastic packaging can not enter cavity package, force gas and the heat that the heat seal plastic packaging produces to spread along plastic packaging line direction and position; Be beneficial to the heat fast spread that thermoplastic envelope produces separating in advance of heat seal cutting die 1 and heat seal auxiliary 2, silaatic 4 make precompressed device 3 after be separated from heat seal auxiliary 2, make intercept pernicious gas and heat conducting effect more reliable.Wherein, described precompressed device 3 join with heat seal auxiliary 2 both sides the structure division of making extruding plastic packaging film 6, its angle that is set to external-open is intended to reach the bottom and makes plastic packaging film 6 be the extruding wire greater than 5 ° of heat seal auxiliary 2 profile of tooth angles, and upper opening is conducive to heat radiation.
Embodiment 4: the same heat seal encapsulation that is implemented on plastic sheeting opposite bilateral cavity package.As shown in Figure 4, it has increased pressurized air 5 on the basis of embodiment 3, comprises heat seal cutting die 1, heat seal auxiliary 2, precompressed device 3, silaatic 4, pressurized air 5 and plastic packaging film 6.Described pressurized air 5 is arranged on the both sides side position of heat seal auxiliary 2, and it is opened when precompressed device 3 top compression moulding sealing film 6 inclined-planes to heat seal auxiliary 2 are the extruding shape, closes when the heat seal cutting die 1 after completing the heat seal plastic packaging separates with heat seal auxiliary 2; Same strengthening with it intercepts pernicious gas and avoids heat conducting reliability, and can enhance productivity.
Obviously, those skilled in the art can carry out various changes and not break away from spiritual scope of the present invention structure of the present invention.Therefore, if these changes belong to claims of the present invention and the technical scope that is equal in, the present invention also is intended to contain these changes.
Claims (4)
1. avoid the mode that in the plastic film encapsulation, pernicious gas enters cavity package for one kind, it is characterized in that, it comprises heat seal cutting die, heat seal auxiliary, precompressed device, extrusion Bringing-back mechanism and pressurized air; It is close to the packaging line position common plastic sheeting heat seal packaging technology, increase together and install by corresponding concavo-convex incision extrusion film to being defeated by material thickness along plastic packaging line side, make it to be the mechanical type of linear extruding shape, or further machinery adds the compound type blocking-up isolation structure of gas, enters cavity package and heat conduction in order to the pernicious gas of avoiding the plastic film encapsulation to have.
2. according to claim 1ly avoid the mode that in plastic film encapsulation, pernicious gas enters cavity package, it is characterized in that, plastic packaging line one side is cavity package, adopts one-sided incision extrusion film to the wire shaped of being defeated by material thickness; Plastic packaging line bilateral is cavity package, adopts the incision extrusion film of bilateral to the wire shaped of being defeated by material thickness.
3. according to claim 1ly avoid the mode that in plastic film encapsulation, pernicious gas enters cavity package, it is characterized in that, at mechanical incision extrusion film when being defeated by the wire shaped of material thickness, auxiliary with pressurized air strengthening effect, and make it to avoid fast the heat conduction.
4. according to claim 1ly avoid the mode that in plastic film encapsulation, pernicious gas enters cavity package, it is characterized in that, above-mentioned mode can be applied to circular, abnormity and the heat seal plastic packaging occasion multi-cavity position, or be applied in the continuous heat seal plastic packaging occasion of rolling-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310240071.4A CN103274086B (en) | 2013-06-06 | 2013-06-06 | In avoiding plastic film to encapsulate, pernicious gas enters the mode of cavity package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310240071.4A CN103274086B (en) | 2013-06-06 | 2013-06-06 | In avoiding plastic film to encapsulate, pernicious gas enters the mode of cavity package |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103274086A true CN103274086A (en) | 2013-09-04 |
| CN103274086B CN103274086B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310240071.4A Active CN103274086B (en) | 2013-06-06 | 2013-06-06 | In avoiding plastic film to encapsulate, pernicious gas enters the mode of cavity package |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108045659A (en) * | 2017-12-24 | 2018-05-18 | 无锡市创恒机械有限公司 | Packaging bag sealing secondary compression mechanism |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4843796A (en) * | 1988-03-22 | 1989-07-04 | Ecs Corporation | Method and apparatus for vacuum packaging |
| US5673534A (en) * | 1995-06-23 | 1997-10-07 | Simple Packaging Solutions, Inc. | Reclosable storage bag |
| CN1234328A (en) * | 1998-03-27 | 1999-11-10 | Sig包装系统股份公司 | Apparatus for transverse welding and cutting package hose made of thermoplastic plastic film especially used in tubelike bag packing machines |
| CN1302270A (en) * | 1998-02-10 | 2001-07-04 | 维尔霍·埃里克森 | Apparatus for method for sealing tubular container |
| CN1657365A (en) * | 2004-02-17 | 2005-08-24 | 吴羽化学工业株式会社 | Packing body making device, packing body making method and packing body |
| CN101279651A (en) * | 2008-05-07 | 2008-10-08 | 杭州中亚机械有限公司 | Horizontal-seal cutting method for soft bag type package and horizontal-seal cutting device |
| CN101817408A (en) * | 2010-04-09 | 2010-09-01 | 叶春林 | Thermal sealing package method and assembly of plastic films |
| CN202670168U (en) * | 2012-07-07 | 2013-01-16 | 叶春林 | Mechanical flow separation device for plastic film heat seal packaging |
| CN202703982U (en) * | 2012-07-01 | 2013-01-30 | 叶春林 | Gas separating and ventilating device for plastic film heat-sealing packaging |
-
2013
- 2013-06-06 CN CN201310240071.4A patent/CN103274086B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4843796A (en) * | 1988-03-22 | 1989-07-04 | Ecs Corporation | Method and apparatus for vacuum packaging |
| US5673534A (en) * | 1995-06-23 | 1997-10-07 | Simple Packaging Solutions, Inc. | Reclosable storage bag |
| CN1302270A (en) * | 1998-02-10 | 2001-07-04 | 维尔霍·埃里克森 | Apparatus for method for sealing tubular container |
| CN1234328A (en) * | 1998-03-27 | 1999-11-10 | Sig包装系统股份公司 | Apparatus for transverse welding and cutting package hose made of thermoplastic plastic film especially used in tubelike bag packing machines |
| CN1657365A (en) * | 2004-02-17 | 2005-08-24 | 吴羽化学工业株式会社 | Packing body making device, packing body making method and packing body |
| CN101279651A (en) * | 2008-05-07 | 2008-10-08 | 杭州中亚机械有限公司 | Horizontal-seal cutting method for soft bag type package and horizontal-seal cutting device |
| CN101817408A (en) * | 2010-04-09 | 2010-09-01 | 叶春林 | Thermal sealing package method and assembly of plastic films |
| CN202703982U (en) * | 2012-07-01 | 2013-01-30 | 叶春林 | Gas separating and ventilating device for plastic film heat-sealing packaging |
| CN202670168U (en) * | 2012-07-07 | 2013-01-16 | 叶春林 | Mechanical flow separation device for plastic film heat seal packaging |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108045659A (en) * | 2017-12-24 | 2018-05-18 | 无锡市创恒机械有限公司 | Packaging bag sealing secondary compression mechanism |
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| CN103274086B (en) | 2015-08-19 |
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