CN111301872A - Layered heating unit, layered heating structure and laminated bag - Google Patents
Layered heating unit, layered heating structure and laminated bag Download PDFInfo
- Publication number
- CN111301872A CN111301872A CN201811516018.1A CN201811516018A CN111301872A CN 111301872 A CN111301872 A CN 111301872A CN 201811516018 A CN201811516018 A CN 201811516018A CN 111301872 A CN111301872 A CN 111301872A
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- Prior art keywords
- bag
- layered heating
- heating
- layered
- heat
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 110
- 229920000642 polymer Polymers 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229920006303 teflon fiber Polymers 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 239000000047 product Substances 0.000 description 11
- 238000010030 laminating Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000002861 polymer material Substances 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 4
- 238000003475 lamination Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000002427 irreversible effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
- B65D81/3476—Packages provided with an electrical circuit, e.g. resistances, for heating the contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Surface Heating Bodies (AREA)
Abstract
The invention relates to the technical field of heating forming, in particular to a layered heating unit, which comprises: a plurality of heat-resisting polymer flexible belts (1) extending along the first direction and a plurality of heating wires (2) extending along the second direction, wherein the heat-resisting polymer flexible belts (1) and the heating wires (2) are mutually woven into a net shape. The layered heating structure comprises a plurality of layered heating units which are arranged in parallel at intervals in a first direction, and a horizontal connecting part (4) is arranged between every two adjacent layered heating units. The laminated bag comprises an inner bag (51) and an outer bag (52) which are sleeved with each other, wherein the inner bag (51) is a placing space for an object (3) to be heated, and a layered heating structure is arranged between the inner bag (51) and the outer bag (52) of the upper bag body and/or the lower bag body. The invention provides a layered heating unit, a layered heating structure and a laminated bag which are suitable for heating non-planar products and have long service life.
Description
Technical Field
The invention relates to the technical field of heating forming, in particular to a layered heating unit, a layered heating structure and a laminated bag.
Background
At present, the laminating machine is an indispensable large-scale device in the production process of some products including Han tiles, cylindrical tiles, metal tiles and others. The working principle of the laminating machine is that a high-power heating rod is distributed in a cavity of the laminating machine, the heating rod heats air in the cavity, and then a fan drives hot air to realize circulating flow in the cavity. The circulating hot air heats the laminated bag to gradually raise the temperature of the laminated bag from the outside to the inside, when the temperature is raised to a certain temperature, the packaging materials in the laid sample (shown in figure 1) in the laminated bag are gradually softened and melted, and under the pressure provided by the vacuum condition of the laminated bag, the sample is finally compacted to produce the final product.
In the processing process, air is adopted for heat transfer, and the product is wrapped by the laminated bag, so that the heating efficiency is very low, the heating and cooling time required in the production process of the product is very long, and the production efficiency is reduced; the size of the laminating machine is large, a large operation space is often needed, the manufacturing cost and the field input cost are large, and in the process of the verification test, the whole system of the laminating machine needs to be opened even if only one sample is needed, so that the labor and the time are very wasted; in addition, since products processed by using the laminated bag are generally non-planar products, if a planar heating structure is directly placed inside the laminated bag, delamination is likely to occur between the heating structure and the laminated bag during heating, the structure of the laminated bag is damaged, and the service life of the heating structure is shortened.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect that the heating structure in the prior art is not suitable for heating non-planar products, thereby providing a layered heating unit, a layered heating structure and a laminated bag which are suitable for heating non-planar products and have long service life.
In order to solve the above technical problem, the present invention provides a layered heating unit comprising: the heating wire comprises a plurality of heat-resistant polymer flexible belts extending along a first direction and a plurality of heating wires extending along a second direction, wherein the heat-resistant polymer flexible belts and the heating wires are mutually woven into a net shape.
The heat-resistant polymer flexible belt comprises wave parts and plane parts which are arranged at intervals along the extending direction, and the shape of the wave parts is consistent with that of an object to be heated.
The layered heating unit is characterized in that the heat-resistant polymer flexible belt is a Teflon fiber bundle, and the heating wire is a metal wire with the periphery coated with polytetrafluoroethylene.
The invention also provides a layered heating structure which comprises a plurality of layered heating units which are arranged in parallel at intervals in the first direction, and a horizontal connecting part is arranged between every two adjacent layered heating units.
The invention also provides a laminated bag, which comprises an inner bag and an outer bag which are mutually sleeved, wherein the inner bag is a placing space for an object to be heated, and the layered heating structure is arranged between the inner bag and the outer bag of the upper layer bag body and/or the lower layer bag body.
The laminated bag is provided with a filling layer in the gaps of the layered heating structure.
The material of the filling layer of the laminated bag is the same as that of the inner bag and the outer bag.
The laminated bag is characterized in that the edges of the upper layer bag body and the lower layer bag body are provided with annular sealing belts.
The laminated bag further comprises a control structure connected with the layered heating structure.
The laminated bag further comprises a vacuum-pumping structure communicated with the placing space.
The technical scheme of the invention has the following advantages:
1. the layered heating unit provided by the invention is provided with the plurality of heat-resistant polymer flexible belts extending along the first direction and the plurality of heating wires extending along the second direction, so that a product with a non-planar structure in the first direction can be heated, the heating effect can be ensured, the irreversible deformation of the heating wires when the heating wires are heated and subjected to external force is effectively avoided, and the service life of the heating wires is prolonged.
2. According to the layered heating unit provided by the invention, the heat-resistant polymer flexible belt comprises the wavy parts and the plane parts which are arranged at intervals along the extending direction, and the shapes of the wavy parts are consistent with the shape of an object to be heated. Thus, the heating unit can heat a plurality of objects to be heated simultaneously, and the heating efficiency is improved.
3. According to the layered heating unit provided by the invention, the heat-resistant polymer flexible belt is a Teflon fiber bundle, and the heating wire is a metal wire of which the periphery is coated with polytetrafluoroethylene. The heat-resistant polymer flexible belt made of the polymer material not only has the characteristic of heat aging resistance, but also can generate elastic deformation with recoverability, so that the heat-resistant polymer flexible belt can be better matched with the shape of an object to be heated, and the yield is improved.
4. The layered heating structure provided by the invention comprises a plurality of layered heating units which are arranged in parallel at intervals in a first direction, and a horizontal connecting part is arranged between every two adjacent layered heating units. Therefore, the deformation of the heating wire in the second direction can be reduced to the greatest extent, and the service life of the heating wire is prolonged.
5. According to the laminated bag provided by the invention, the layered heating structure is arranged between the inner bag and the outer bag of the upper layer bag body and/or the lower layer bag body, so that the heating efficiency of an object to be heated can be improved, the product quality is ensured, and the service life of the heating structure is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of a prior art laminated bag heating product;
FIG. 2 is a schematic view of a layered heating unit provided by the present invention;
FIG. 3 is a partial schematic view of a layered heating unit provided by the present invention;
FIG. 4 is a schematic view of a laminated bag provided by the present invention in an operative condition;
fig. 5 is a cross-sectional view of a laminated bag provided by the present invention.
Description of reference numerals:
1-heat-resistant polymer flexible belt; 2-heating wires; 3-an object to be heated; 4-a horizontal connection; 5-laminating the bag; 6-annular sealing belt; 7-a control structure; 11-a wave portion; 12-plane section; 51-an inner bag; 52-outer bag; 71-electric heating means; 72-controller.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
One embodiment of the layered heating unit shown in fig. 2 and 3 comprises a plurality of heat-resistant polymer flexible tapes 1 extending in a first direction and a plurality of heating wires 2 extending in a second direction, wherein the plurality of heat-resistant polymer flexible tapes 1 and the plurality of heating wires 2 are woven into a mesh shape with each other. The first direction in this embodiment is the X-axis direction in fig. 3, and the second direction is the Y-axis direction in fig. 3. The heat-resistant polymer flexible belt 1 and the heating wires 2 form a grid structure in an intercrossing mode, and the size of the grid can be adjusted according to actual needs.
The heat-resistant polymer flexible belt 1 comprises wavy parts 11 and flat parts 12 which are arranged at intervals along the extending direction, and the shape of the wavy parts 11 is consistent with that of an object 3 to be heated. The object 3 to be heated in this embodiment is a han tile, and since the han tile has a wavy shape, the wavy portions 11 of the heat-resistant polymer flexible band 1 correspond to the han tile one by one, so that heating is facilitated while a corresponding acting force is applied thereto, and the heat-resistant polymer flexible band is molded. Two adjacent chinese tiles use plane portion 12 as and cut apart, and the polylith chinese tile adds thermoforming simultaneously of being convenient for, and each other does not influence.
As a specific embodiment, the heat-resistant polymer flexible belt 1 is a teflon fiber bundle, and the heating wire 2 is a metal wire whose outer periphery is coated with polytetrafluoroethylene. Certainly, the heat-resistant polymer flexible belt 1 can also be made of other heat-aging-resistant polymer materials, such as ethylene propylene diene monomer rubber and the like; the outer periphery of the heating wire 2 may not be coated with the polymer material.
A layered heating structure comprises a plurality of layered heating units which are arranged in parallel at intervals in the X-axis direction, and a horizontal connecting part 4 is arranged between every two adjacent layered heating units. The horizontal connecting portion 4 may be made of the same material as the heat-resistant polymer flexible belt 1, and is used for connecting two adjacent layered heating units, so as to form a heating layer with a large heating area, and ensure the heating stability and uniformity of the plurality of objects 3 to be heated at one time.
As shown in fig. 4 and 5, the laminated bag comprises an inner bag 51 and an outer bag 52 which are sleeved with each other, the inner bag 51 is a space for placing the object 3 to be heated, the object 3 to be heated in this embodiment is hanwa, and the layered heating structure is provided between the inner bag 51 and the outer bag 52 of the upper bag and the lower bag. Of course, the layered heating structure may be disposed only in the upper bag body or the lower bag body.
The heat-resistant polymer flexible belt 1 and the heating wires 2 are mutually woven to form a grid structure, so that a plurality of gaps exist, filling layers, such as rubber with the same material as that of the inner bag 51 and the outer bag 52, are arranged in the gaps of the layered heating structure, so that the layered heating structure can be completely embedded into the laminated bag 5, the layered heating structure cannot be displaced in the using process of the laminated bag 5, and the heating efficiency is further improved. The filling layer may be added during the process of integrally forming the laminated bag 5 and the layered heating structure, corresponding to the adhesive for fixing the two.
In order to ensure the sealability of the laminated bag 5, an annular seal tape 6 is provided at the edges of the upper and lower bag bodies. The annular sealing strip 6 can be formed by directly hot-pressing the edges of the upper bag body and the lower bag body or by adding a sealant to the edges of the upper bag body and the lower bag body. The annular sealing band 6 is provided to ensure the sealing performance of the interior of the laminated bag 5 when a vacuum is drawn.
In order to control the temperature during heating, a control structure 7 is also connected to the layered heating structure. The control structure 7 comprises an electric heating device 71 connected with the heating wire 2 and a controller 72 connected with the electric heating device 71, wherein the controller 72 is used for adjusting the heating rate and the heating time of the electric heating device 71 according to actual conditions.
And the vacuum pumping structure, such as a vacuum pump, is communicated with the placing space. During the lamination process, the pressure to which the product is subjected is derived from the evacuated lamination bag 5, the vacuum conditions of the lamination bag 5 being provided by a vacuum pump connected to the lamination bag 5.
When han-tile is placed in the laminated bag 5, the wave extension direction of the triple-curved glass of the han-tile front panel is the x-axis direction, while the y-axis direction has no curvature. Then, when the interior of the laminated bag 5 is vacuumized to press han tile, the teflon fiber bundles arranged in the x-axis direction in the heating structure are used as high polymer materials, so that the high polymer material has high deformation rate and rebound resilience, and can deform greatly along with the laminated bag 5. And because the heating wire 2 arranged in the y-axis direction has no curvature in the Chinese tile direction, the heating wire 2 only moves up and down along the z-axis direction, and almost does not stretch in the y-axis direction, so that the irreversible deformation of the heating wire 2 under the high temperature and pressure is avoided, and the breakage phenomenon is prevented. And certain stretching allowance caused by the thickness of the heating wire 2 in the z-axis direction is correspondingly compensated by the arrangement of the horizontal connecting part 4 in the y-axis direction, so that the heating wire 2 is ensured to only do up-and-down movement along the z-axis direction, and the damage to the heating wire 2 is reduced to the maximum extent.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A layered heating unit, comprising: a plurality of heat-resisting polymer flexible belt (1) that extend along the first direction and a plurality of heater strip (2) that extend along the second direction, it is a plurality of heat-resisting polymer flexible belt (1) and a plurality of heater strip (2) are woven into netted each other.
2. The layered heating unit according to claim 1, wherein the heat-resistant polymer flexible belt (1) comprises wavy parts (11) and flat parts (12) arranged at intervals in the extending direction, and the shape of the wavy parts (11) is in accordance with the shape of the object (3) to be heated.
3. The layered heating unit according to claim 1 or 2, wherein the heat-resistant polymer flexible belt (1) is a teflon fiber bundle, and the heating wire (2) is a metal wire whose outer circumference is coated with polytetrafluoroethylene.
4. A layered heating structure, characterized in that it comprises a plurality of layered heating units according to any one of claims 1-3 arranged in parallel and spaced apart in a first direction, and that a horizontal connecting portion (4) is provided between two adjacent layered heating units.
5. A laminated bag comprising an inner bag (51) and an outer bag (52) fitted to each other, the inner bag (51) being a space for placing an object (3) to be heated, characterized in that a layered heating structure according to claim 4 is provided between the inner bag (51) and the outer bag (52) of the upper bag body and/or the lower bag body.
6. Laminated bag according to claim 5, characterised in that a filling layer is provided in the gaps of the layered heating structure.
7. The laminated bag according to claim 6, wherein the material of the filling layer is the same as the material of the inner bag (51) and the outer bag (52).
8. Laminated bag according to any one of claims 5 to 7, characterized in that an annular sealing strip (6) is provided at the edges of the upper and lower bag bodies.
9. Laminated bag according to any of claims 5-7, further comprising a control structure (7) connected to the layered heating structure.
10. The laminate bag of any one of claims 5-7 further comprising an evacuation structure in communication with the placement space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811516018.1A CN111301872A (en) | 2018-12-11 | 2018-12-11 | Layered heating unit, layered heating structure and laminated bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811516018.1A CN111301872A (en) | 2018-12-11 | 2018-12-11 | Layered heating unit, layered heating structure and laminated bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111301872A true CN111301872A (en) | 2020-06-19 |
Family
ID=71156390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811516018.1A Pending CN111301872A (en) | 2018-12-11 | 2018-12-11 | Layered heating unit, layered heating structure and laminated bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111301872A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325429A (en) * | 1998-11-09 | 2001-12-05 | 3M创新有限公司 | Bendable articles containing aheating element, assemblies made therewith, and a method of using said articles |
| US20030079825A1 (en) * | 2001-10-25 | 2003-05-01 | Gardner Slade H. | Method and apparatus for fabricating corrugated composite stiffeners |
| CN1663002A (en) * | 2002-06-19 | 2005-08-31 | 松下电器产业株式会社 | Flexible PTC heating element and method of manufacturing the heating element |
| CN102202849A (en) * | 2008-10-10 | 2011-09-28 | 爱尔兰复合材料有限公司 | A heated mould for moulding polymeric composites |
| CN103587129A (en) * | 2012-08-15 | 2014-02-19 | 波音公司 | Portable curing system |
| CN104105232A (en) * | 2013-04-09 | 2014-10-15 | 王俊人 | Carbon nanofiber heating cloth |
| CN106965461A (en) * | 2017-03-16 | 2017-07-21 | 罗璐 | Vacuum forming equipment |
| CN209758038U (en) * | 2018-12-11 | 2019-12-10 | 汉能移动能源控股集团有限公司 | Layered heating unit, layered heating structure and laminated bag |
-
2018
- 2018-12-11 CN CN201811516018.1A patent/CN111301872A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325429A (en) * | 1998-11-09 | 2001-12-05 | 3M创新有限公司 | Bendable articles containing aheating element, assemblies made therewith, and a method of using said articles |
| US20030079825A1 (en) * | 2001-10-25 | 2003-05-01 | Gardner Slade H. | Method and apparatus for fabricating corrugated composite stiffeners |
| CN1663002A (en) * | 2002-06-19 | 2005-08-31 | 松下电器产业株式会社 | Flexible PTC heating element and method of manufacturing the heating element |
| CN102202849A (en) * | 2008-10-10 | 2011-09-28 | 爱尔兰复合材料有限公司 | A heated mould for moulding polymeric composites |
| CN103587129A (en) * | 2012-08-15 | 2014-02-19 | 波音公司 | Portable curing system |
| CN104105232A (en) * | 2013-04-09 | 2014-10-15 | 王俊人 | Carbon nanofiber heating cloth |
| CN106965461A (en) * | 2017-03-16 | 2017-07-21 | 罗璐 | Vacuum forming equipment |
| CN209758038U (en) * | 2018-12-11 | 2019-12-10 | 汉能移动能源控股集团有限公司 | Layered heating unit, layered heating structure and laminated bag |
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Effective date of registration: 20201228 Address after: 101400 Yanqi Street, Yanqi Economic Development Zone, Huairou District, Beijing Applicant after: Beijing Huihong Technology Co., Ltd Address before: Room 107, building 2, Olympic Village street, Chaoyang District, Beijing Applicant before: HANERGY MOBILE ENERGY HOLDING GROUP Co.,Ltd. |
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Effective date of registration: 20211026 Address after: No.31 Yanqi street, Yanqi Economic Development Zone, Huairou District, Beijing Applicant after: Dongjun new energy Co.,Ltd. Address before: 101400 Yanqi Street, Yanqi Economic Development Zone, Huairou District, Beijing Applicant before: Beijing Huihong Technology Co., Ltd |
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