CN112895552B - Reciprocating rolling mill for rolling electromagnetic shielding material - Google Patents
Reciprocating rolling mill for rolling electromagnetic shielding material Download PDFInfo
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- CN112895552B CN112895552B CN202011629696.6A CN202011629696A CN112895552B CN 112895552 B CN112895552 B CN 112895552B CN 202011629696 A CN202011629696 A CN 202011629696A CN 112895552 B CN112895552 B CN 112895552B
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- Prior art keywords
- rolling
- heating
- electromagnetic shielding
- roller
- roll
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- 238000005096 rolling process Methods 0.000 title claims abstract description 62
- 239000000463 material Substances 0.000 title claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 9
- 238000005485 electric heating Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/32—Discharging presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/34—Heating or cooling presses or parts thereof
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The application relates to a reciprocating rolling mill for rolling electromagnetic shielding materials, which is characterized by comprising two rolling mechanisms and a roller assembly, wherein the roller assembly is arranged between the two rolling mechanisms, the roller assembly comprises two rollers which are oppositely arranged and can adjust gaps, a heating and heat-preserving mechanism is arranged on the outer sides of the two rolling mechanisms, and the heating and heat-preserving mechanism faces one side of the roller assembly and can be used for allowing materials to enter the rolling mechanisms. The application can roll the electromagnetic shielding material mixed by metal and plastic more easily.
Description
Technical Field
The invention belongs to the field of composite film manufacturing, and particularly relates to a reciprocating rolling mill for rolling electromagnetic shielding materials.
Background
With the rapid development of the electronic industry, the number of various civil and military electronic products is dramatically increased, and electromagnetic interference has become a new social nuisance. Plastic is used as a shell material of electronic products because of its advantages of light weight, corrosion resistance, low cost, good plasticity, etc. However, the common plastic is an insulator, on one hand, electrostatic charges are easy to accumulate, fire and explosion are easy to cause in flammable and explosive places, on the other hand, the plastic is almost transparent to electromagnetic waves, cannot absorb and reflect, has no shielding capability, and does not have electromagnetic interference resistance. Therefore, the research of the novel shielding composite material with the wave absorbing function, good conductivity and good processing performance can provide good means and guarantee for military, communication, confidentiality, computer system engineering, electronic control engineering, biological engineering and high-tech electromagnetic compatibility, and has great practical significance for social life and national defense construction.
The potential hazard of electromagnetic radiation is discussed and solved from the technical level, and the method is mainly divided into two aspects: (1) Optimizing circuit design, wiring separation, including circuit board design including ground wire. The improved design method has the defects of complex design process, time-consuming processing process and the like in the application process; (2) The electromagnetic interference reducing material is widely applied abroad, but because the foundation of the early related technology in China is weak, the autonomous research and development of the shielding material is relatively late, and the shielding material is sold by only a few factories at present and has smaller scale, the autonomous research and development of the electromagnetic wave shielding material is urgently needed, and the shielding material industry is formed as soon as possible.
The shielding materials commonly used at present mainly comprise: (1) The plastic matrix is externally sprayed with a conductive coating material, including a metal coating, a carbon material coating, a composite material coating and the like, and the materials only have a shielding function on electromagnetic waves with certain frequency due to the thinner coating, and meanwhile, the strength and the heat conducting property of the plastic matrix are not improved; (2) The filled composite electromagnetic shielding plastic is prepared by mixing and granulating conductive filler and synthetic resin and adopting methods such as injection molding, extrusion molding or compression molding, and the like; (3) Other electromagnetic shielding materials, including filled electromagnetic shielding rubber, intrinsic conductive polymers, conductive fabrics, etc., have low strength and poor formability, and can only shield electromagnetic waves of certain frequencies.
At present, electromagnetic shielding plastics are developed in the directions of multiple layers, multiple functions, wide, thin, strong, light and the like, so that a composite shielding material with high strength, high toughness and wide frequency is provided.
For this reason, it is necessary to compound a metal material and plastic particles, but in the conventional rolling mill, the metal material is used as a single metal material, and when rolling a mixture of plastic particles and metal, the plastic particles cool relatively quickly and are easily hardened, and the rolling is difficult, and the above-mentioned problems are needed to be solved in the art.
Disclosure of Invention
The invention provides a reciprocating rolling mill for rolling electromagnetic shielding materials in order to solve the technical problems.
The technical scheme for solving the technical problems is as follows: the reciprocating rolling mill for rolling the electromagnetic shielding material is characterized by comprising two rolling mechanisms and a roller assembly, wherein the roller assembly is arranged between the two rolling mechanisms, the roller assembly comprises two rollers which are oppositely arranged and can adjust a gap, a heating and heat-preserving mechanism is arranged on the outer side of each rolling mechanism, and the heating and heat-preserving mechanism faces one side of the roller assembly and can be used for materials to enter the rolling mechanism.
The reciprocating rolling mill for rolling the electromagnetic shielding material has the beneficial effects that: the application can roll the electromagnetic shielding material mixed by metal and plastic more easily.
Further, the heating and heat preserving mechanism comprises a heat preserving cavity and a heating mechanism, wherein the heating mechanism is used for heating the heat preserving cavity, and the heat preserving cavity is opened towards one side of the roller assembly.
Further, the heating mechanism is an electric heating wire, an electric heating rod or an electric heating film.
Further, the two rollers are a driving roller and a driven roller respectively, and the driven roller can be close to or far away from the driving roller.
Further, the driving roller and the driven roller are disposed opposite to each other in a vertical direction.
Further, the driven roller is connected with the installation frame through a rotating shaft, the installation frame is connected with the lifting mechanism, and the lifting mechanism is used for driving the driven roller to be close to or far away from the driving roller.
Further, the winding mechanism is a rotatable winding roller.
Drawings
Fig. 1 is an overall schematic of the present application.
Reference numerals illustrate: 1. a winding mechanism; 21. a drive roll; 22. driven roller; 3. and a heating and heat preserving mechanism.
Detailed Description
The principles and features of the present application are described below with reference to the drawings and examples, which are provided for illustration only and are not intended to limit the scope of the application.
The following discloses a number of different embodiments or examples of implementing the subject technology. Specific examples of one or more arrangements of features are described below to simplify the disclosure, but the examples are not limiting of the present disclosure, and a first feature described later in this disclosure is connected to a second feature, and may include embodiments that are directly connected to each other, or may include embodiments that form additional features, and further include embodiments that indirectly connect or combine the first feature and the second feature with each other using one or more other intervening features, so that the first feature and the second feature may not be directly connected to each other.
The application discloses an embodiment of a reciprocating rolling mill for rolling electromagnetic shielding materials, which comprises two rolling mechanisms 1 and a roller assembly, wherein the roller assembly is arranged between the two rolling mechanisms 1, the rolling mechanisms 1 can be rotatable rolling rollers, for example, the rotating shafts of the rolling rollers can be connected with driving mechanisms such as a motor, so as to roll or unreel.
The roller assembly comprises two rollers which are oppositely arranged and can adjust gaps, in a more specific embodiment, the two rollers are a driving roller 21 and a driven roller 22 respectively, the driven roller 22 can be close to or far away from the driving roller 21, the driving roller 21 and the driven roller 22 are oppositely arranged in the vertical direction, in one example, the driving roller 21 is positioned below the driven roller 22, the driving roller 21 is connected with a driving mechanism such as a motor and the like through a transmission mechanism such as a belt, the driven roller 22 is connected with a mounting frame through a rotating shaft, the mounting frame is connected with a lifting mechanism, the lifting mechanism can be an air cylinder connected with the mounting frame, for example, the mounting frame can be in an inverted U-shaped structure, the two ends of the driven roller 22 are in running fit with the inner sides of the two opposite side plates of the mounting frame through the rotating shaft, the movable end of the air cylinder is fixed with the connecting plate of the mounting frame, and the driven roller 22 can be driven to be close to or far away from the driving roller 21 through the air cylinder.
In the embodiment disclosed in the application, the outer sides of the two rolling mechanisms 1 are provided with heating and heat-preserving mechanisms 3, one side of the heating and heat-preserving mechanisms 3 facing the roller assembly can be used for allowing materials to enter the rolling mechanisms 1, in a more specific example, the heating and heat-preserving mechanisms 3 comprise a heat-preserving cavity and a heating mechanism, the heating mechanism is used for heating the heat-preserving cavity, the heat-preserving cavity is opened towards one side of the roller assembly, the heating mechanism can be arranged on the inner side wall of the heat-preserving cavity, the heat-preserving cavity can be reused with a double-layer glass plate or other heat-preserving structures, and the heating mechanism can be, but is not limited to, an electric heating wire, an electric heating rod or an electric heating film.
When the rolling machine works, a material is placed between the driving roller 21 and the driven roller 22, the product is rolled by adjusting the gap between the driving roller 21 and the driven roller 22, the rolling rollers on the two sides roll the rolled material, unreel the rolled material after rolling is finished, roll the rolled material in the opposite direction by the roller assembly and roll the rolled material towards the rolling mechanism 1 on the other side, and the heating and heat preserving mechanism 3 is arranged above the softening temperature and below the melting temperature of plastic particles when in work, so that rolling can be finished more easily.
The application is suitable for rolling the mixed material of metal and plastic, and the temperature of the two-end rolling mechanism is higher than the softening temperature of plastic particles and lower than the melting temperature by adjusting the temperature of the heating and heat preserving mechanism, so that the rolling is easier.
In the description of the present specification, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present specification and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present specification.
In the description of the present specification, the meaning of "plurality" means at least two, for example, two, three, etc., unless explicitly defined otherwise.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The terms used in the present specification are those general terms that are currently widely used in the art in view of the functions of the present disclosure, but may vary according to the intention, precedent, or new technology in the art of the person of ordinary skill in the art. Furthermore, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present disclosure. Accordingly, the terms used in the specification should not be construed as simple names, but rather based on the meanings of the terms and the general description of the present disclosure.
Flowcharts or text is used in this specification to describe the operational steps performed according to embodiments of the present application. It should be understood that the steps of operations in embodiments of the present application are not necessarily performed in the exact order recited. Rather, the various steps may be processed in reverse order or simultaneously, as desired. Also, other operations may be added to or removed from these processes.
The foregoing description of the preferred embodiments of the application is not intended to limit the application to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the application are intended to be included within the scope of the application.
Claims (5)
1. The reciprocating rolling mill for rolling the electromagnetic shielding material is used for rolling the mixed material of metal and plastic and is characterized by comprising two rolling mechanisms and a roller assembly, wherein the roller assembly is arranged between the two rolling mechanisms and comprises two rollers which are oppositely arranged and can adjust a gap, a heating and heat-preserving mechanism is arranged on the outer sides of the two rolling mechanisms, and the heating and heat-preserving mechanism faces one side of the roller assembly and can be used for allowing the material to enter the rolling mechanisms;
The heating and heat preserving mechanism comprises a heat preserving cavity and a heating mechanism, the heating mechanism is used for heating the heat preserving cavity, and the heat preserving cavity is opened towards one side of the roller assembly;
the winding mechanism is a rotatable winding roller;
the rolling rolls on the two sides roll the rolled material, unreel the rolled material after the rolling is completed, and roll the rolled material in the opposite direction by the roll assembly; when the heating and heat preserving mechanism works, the temperature is set above the softening temperature of the plastic particles and below the melting temperature.
2. The reciprocating rolling mill for rolling electromagnetic shielding material according to claim 1, which is used for rolling mixed material of metal and plastic, wherein the heating mechanism is an electric heating wire, an electric heating rod or an electric heating film.
3. The reciprocating rolling mill for rolling electromagnetic shielding material according to claim 1, for rolling a mixed material of metal and plastic, wherein the two rolls are a driving roll and a driven roll, respectively, which can be brought close to or away from the driving roll.
4. A reciprocating rolling mill for rolling an electromagnetic shielding material for mixed material rolling of metal and plastic as claimed in claim 3, wherein said driving roller and said driven roller are disposed opposite to each other in a vertical direction.
5. The reciprocating rolling mill for rolling electromagnetic shielding material of claim 4, wherein the driven roller is connected with a mounting frame through a rotating shaft, the mounting frame is connected with a lifting mechanism, and the lifting mechanism is used for driving the driven roller to be close to or far away from the driving roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011629696.6A CN112895552B (en) | 2020-12-30 | 2020-12-30 | Reciprocating rolling mill for rolling electromagnetic shielding material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011629696.6A CN112895552B (en) | 2020-12-30 | 2020-12-30 | Reciprocating rolling mill for rolling electromagnetic shielding material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112895552A CN112895552A (en) | 2021-06-04 |
| CN112895552B true CN112895552B (en) | 2024-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011629696.6A Active CN112895552B (en) | 2020-12-30 | 2020-12-30 | Reciprocating rolling mill for rolling electromagnetic shielding material |
Country Status (1)
| Country | Link |
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| CN (1) | CN112895552B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214726705U (en) * | 2020-12-30 | 2021-11-16 | 苏州创浩新材料科技有限公司 | Reciprocating rolling mill for rolling electromagnetic shielding material |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05308107A (en) * | 1991-07-01 | 1993-11-19 | Sumitomo Electric Ind Ltd | Semiconductor device and its manufacture |
| IT1262096B (en) * | 1993-03-31 | 1996-06-19 | Tecnomeccanica Srl | DEVICE FOR WHITE AND Vault PLASTIFICATION |
| CN100423859C (en) * | 2006-04-10 | 2008-10-08 | 上海格林赛高新材料有限公司 | Reciprocating reducing roller |
| JP5772427B2 (en) * | 2011-09-14 | 2015-09-02 | 日本ゼオン株式会社 | Powder rolling apparatus and rolled sheet manufacturing method |
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2020
- 2020-12-30 CN CN202011629696.6A patent/CN112895552B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214726705U (en) * | 2020-12-30 | 2021-11-16 | 苏州创浩新材料科技有限公司 | Reciprocating rolling mill for rolling electromagnetic shielding material |
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| Publication number | Publication date |
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| CN112895552A (en) | 2021-06-04 |
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