CN112895552A - Reciprocating rolling mill for rolling electromagnetic shielding material - Google Patents
Reciprocating rolling mill for rolling electromagnetic shielding material Download PDFInfo
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- CN112895552A CN112895552A CN202011629696.6A CN202011629696A CN112895552A CN 112895552 A CN112895552 A CN 112895552A CN 202011629696 A CN202011629696 A CN 202011629696A CN 112895552 A CN112895552 A CN 112895552A
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- electromagnetic shielding
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- 238000005096 rolling process Methods 0.000 title claims abstract description 51
- 239000000463 material Substances 0.000 title claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 238000004804 winding Methods 0.000 claims description 13
- 238000005485 electric heating Methods 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 2
- 239000004033 plastic Substances 0.000 abstract description 16
- 229920003023 plastic Polymers 0.000 abstract description 16
- 239000002184 metal Substances 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
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- 230000008018 melting Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229920000426 Microplastic Polymers 0.000 description 1
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- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
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Images
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
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- 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
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- 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 invention relates to a reciprocating rolling mill for rolling electromagnetic shielding materials, which is characterized by comprising two rolling mechanisms and a roll assembly, wherein the roll assembly is arranged between the two rolling mechanisms and comprises two rolls which are oppositely arranged and can adjust gaps, heating and heat-insulating mechanisms are arranged outside the two rolling mechanisms, and materials can enter the rolling mechanisms from one side of the heating and heat-insulating mechanisms, which faces the roll assembly. The electromagnetic shielding material that this application can be mixed metal and plastics more easily rolls.
Description
Technical Field
The invention belongs to the field of composite film manufacturing, and particularly relates to a reciprocating rolling mill for rolling an electromagnetic shielding material.
Background
With the rapid development of the electronic industry, the number of various electronic products for civil and military use has increased dramatically, and electromagnetic interference has become a new social public nuisance. Plastics are used as housing materials for electronic products because of their advantages of light weight, corrosion resistance, low cost, good moldability, etc. However, common plastics are insulators, so that on one hand, electrostatic charges are easy to accumulate, and fire and explosion are easy to cause in flammable and explosive places, and on the other hand, plastics are almost transparent to electromagnetic waves, cannot absorb and reflect, have no shielding capability and do not have the performance of resisting electromagnetic interference. Therefore, the research on the novel shielding composite material with the wave absorbing function, good conductivity and good processing performance can provide good means and guarantee for military affairs, communication, confidentiality, computer system engineering, electronic control engineering, bioengineering and high-tech electromagnetic compatibility, and the method has great practical significance for social life and national defense construction.
The potential hazard existing in electromagnetic radiation is discussed and solved from the technical aspect, and the method mainly comprises two aspects: (1) optimizing circuit design and wiring separation, and including circuit board design with grounding wires. The improved design method has the defects of complicated design process, time-consuming processing technology and the like in the application process; (2) the electromagnetic interference reducing material using the electromagnetic shielding material is widely applied abroad, but because the related technology in the early stage of China is weak in foundation, the independent research and development of the shielding material is relatively late, only a few manufacturers sell the shielding material at present, and the scale is small, so that the independent research and development of the electromagnetic shielding material are urgently needed, and the shielding material industry is formed as soon as possible.
The shielding materials commonly used at present mainly include: (1) the conductive coating material sprayed outside the plastic substrate comprises a metal coating, a carbon material coating, a composite material coating and the like, and the coating is thin, so that the materials only have a shielding function on electromagnetic waves with certain frequency, and meanwhile, the strength and the heat conducting property of the plastic substrate 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, and the filled composite electromagnetic shielding plastic has certain strength due to the addition of the conductive filler, but the filler and the resin have poor bonding force to cause large brittleness, and the filled composite electromagnetic shielding plastic is easy to crack in application; (3) other electromagnetic shielding materials, including filled electromagnetic shielding rubber, intrinsic conductive polymer, conductive fabric, etc., have low strength and poor moldability, and only have shielding effect on electromagnetic waves of certain frequencies.
At present, the electromagnetic shielding plastic will be developed in the directions of multilayer, multifunction, wide, thin, strong, light, etc., and thus, a composite shielding material with high strength, high toughness and wide frequency is provided.
Therefore, the metal material and the plastic particles need to be compounded, but the existing rolling mills are all for the metal material with single metal, when the mixture of the plastic particles and the metal is rolled, the plastic particles are cooled quickly and are easy to harden, so that the rolling is difficult, and the technical problems to be solved in the field are needed.
Disclosure of Invention
In order to solve the technical problems, the invention provides a reciprocating rolling mill for rolling electromagnetic shielding materials.
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 roll assembly, wherein the roll assembly is arranged between the two rolling mechanisms, the roll assembly comprises two rolls which are oppositely arranged and can adjust gaps, heating and heat-insulating mechanisms are arranged outside the two rolling mechanisms, and materials can enter the rolling mechanisms from one side of the heating and heat-insulating mechanisms, which faces the roll assembly.
The reciprocating rolling mill for rolling the electromagnetic shielding material has the beneficial effects that: the electromagnetic shielding material that this application can be mixed metal and plastics more easily rolls.
Further, 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 roll assembly.
Further, the heating mechanism is an electric heating wire, an electric heating rod or an electric heating film.
Further, the two rollers are respectively a driving roller and a driven roller, and the driven roller can be close to or far away from the driving roller.
Further, the drive roller and the driven roller are disposed opposite to each other in the vertical direction.
Further, the driven voller is connected with the mounting bracket through the pivot, the mounting bracket is connected with elevating system, elevating system is used for ordering about the driven voller is close to or keeps away from the drive roll.
Further, the winding mechanism is a rotatable winding roller.
Drawings
Fig. 1 is an overall schematic diagram of the present application.
Description of reference numerals: 1. a winding mechanism; 21. a drive roll; 22. a driven roller; 3. heating heat preservation mechanism.
Detailed Description
The principles and features of this application are described below in conjunction with the drawings and the embodiments, which are set forth to illustrate the application and not to limit the scope of the application.
The following discloses many different embodiments or examples for implementing the subject technology described. While specific examples of one or more arrangements of features are described below to simplify the disclosure, the examples should not be construed as limiting the present disclosure, and a first feature described later in the specification in conjunction with a second feature can include embodiments that are directly related, can also include embodiments that form additional features, and further can include embodiments in which one or more additional intervening features are used to indirectly connect or combine the first and second features to each other so that the first and second features may not be directly related.
The application discloses an embodiment of a reciprocating rolling mill for rolling electromagnetic shielding materials, which comprises two winding mechanisms 1 and a roll assembly, wherein the roll assembly is installed between the two winding mechanisms 1, the winding mechanisms 1 can be rotatable winding rolls, for example, the rotating shafts of the winding rolls can be connected with driving mechanisms such as motors, and the like, so that winding or unwinding is carried out.
Wherein the roll assembly comprises two rolls with opposite gaps, in a more specific embodiment, the two rolls are respectively a driving roll 21 and a driven roll 22, the driven roll 22 can be close to or far away from the driving roll 21, the driving roll 21 and the driven roll 22 are arranged opposite to each other in the vertical direction, in one example, the driving roll 21 is positioned below the driven roll 22, the driving roll 21 is connected with a driving mechanism such as a motor through a transmission mechanism such as a belt, the driven roll 22 is connected with a mounting frame through a rotating shaft, wherein the mounting frame is connected with a lifting mechanism which can be a cylinder connected with the mounting frame, for example, the mounting frame can adopt an inverted U-shaped structure and comprises two side plates and a connecting plate, two ends of the driven roll 22 are rotatably matched with the inner sides of the two opposite side plates of the mounting frame through the rotating shaft, and the movable end of the cylinder is fixed with the connecting, the driven roller 22 can be driven to approach or separate from the driving roller 21 by the air cylinder.
In the embodiment disclosed in the present application, the heating and heat-preserving mechanisms 3 are disposed outside the two winding mechanisms 1, one side of the heating and heat-preserving mechanism 3 facing the roll assembly can be used for materials to enter the winding mechanism 1, in a more specific example, the heating and heat-preserving mechanism 3 includes a heat-preserving cavity and a heating mechanism, the heating mechanism is used for heating the heat-preserving cavity, the heat-preserving cavity is open towards one side of the roll assembly, wherein the heating mechanism can be disposed on the inner side wall of the heat-preserving cavity, the heat-preserving cavity can be reused by using a double-layer glass plate or other heat-preserving structures, and the heating mechanism can be, but is not limited to, an electric.
When the rolling device works, materials are placed between the driving roller 21 and the driven roller 22, the gap between the driving roller 21 and the driven roller 22 is adjusted to roll the products, the rolling rollers on two sides roll the rolled materials, the rolled materials are unreeled after being rolled, the rolled materials are rolled in the opposite direction by the roll component and are rolled towards the rolling mechanism 1 on the other side, and when the heating and heat-insulating mechanism 3 works, the temperature is set to be higher than the softening temperature of plastic particles and lower than the melting temperature, so that the rolling can be completed more easily.
This application can be applicable to the combined material rolling of metal and plastics, and through the temperature of adjusting heating heat preservation mechanism, the temperature that makes both ends rolling mechanism is greater than the softening temperature of plastic pellet and is less than melting temperature to can make the rolling easier.
In the description of the present specification, it is to be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present specification.
In the description of the present specification, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," 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 application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The terms used in the present specification are those general terms currently widely used in the art in consideration of functions related to the present disclosure, but they may be changed according to the intention of a person having ordinary skill in the art, precedent, or new technology in the art. Also, 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. Therefore, the terms used in the specification should not be construed as simple names but based on the meanings of the terms and the overall description of the present disclosure.
Flowcharts or text are used in this specification to illustrate the operational steps performed in accordance with embodiments of the present application. It should be understood that the operational steps in the 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. Meanwhile, other operations may be added to the processes, or a certain step or several steps of operations may be removed from the processes.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (7)
1. The reciprocating rolling mill for rolling the electromagnetic shielding material is characterized by comprising two rolling mechanisms and a roll assembly, wherein the roll assembly is arranged between the two rolling mechanisms, the roll assembly comprises two rolls which are oppositely arranged and can adjust gaps, heating and heat-insulating mechanisms are arranged outside the two rolling mechanisms, and materials can enter the rolling mechanisms from one side of the heating and heat-insulating mechanisms, which faces the roll assembly.
2. The reciprocating mill for rolling electromagnetic shielding material as claimed in claim 1, wherein said heating and heat-insulating mechanism includes a heat-insulating chamber and a heating mechanism for heating said heat-insulating chamber, said heat-insulating chamber being open to a side of said roll assembly.
3. The reciprocating rolling mill for rolling an electromagnetic shielding material as claimed in claim 2, wherein the heating means is a heating wire, a heating rod or an electric heating film.
4. The reciprocating rolling mill for rolling an electromagnetic shielding material as claimed in claim 1, wherein the two rolling rolls are a driving roll and a driven roll, respectively, and the driven roll is movable closer to or away from the driving roll.
5. The reciprocating rolling mill for rolling an electromagnetic shielding material as claimed in claim 4, wherein the driving roll and the driven roll are disposed opposite to each other in a vertical direction.
6. The reciprocating rolling mill for rolling an electromagnetic shielding material as claimed in claim 5, wherein the driven roll is connected with a mounting bracket through a rotating shaft, and the mounting bracket is connected with an elevating mechanism for driving the driven roll to approach or separate from the driving roll.
7. The reciprocating rolling mill for rolling electromagnetic shielding material as claimed in claim 1, wherein the winding mechanism is a rotatable winding roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011629696.6A CN112895552A (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 CN112895552A (en) | 2020-12-30 | 2020-12-30 | Reciprocating rolling mill for rolling electromagnetic shielding material |
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| Publication Number | Publication Date |
|---|---|
| CN112895552A true CN112895552A (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011629696.6A Pending CN112895552A (en) | 2020-12-30 | 2020-12-30 | Reciprocating rolling mill for rolling electromagnetic shielding material |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0618071A1 (en) * | 1993-03-31 | 1994-10-05 | TECNOMECCANICA Srl | Device to apply a plastic coating to both sides of a support |
| US5455453A (en) * | 1991-07-01 | 1995-10-03 | Sumitomo Electric Industries, Ltd. | Plastic package type semiconductor device having a rolled metal substrate |
| CN101053875A (en) * | 2006-04-10 | 2007-10-17 | 上海格林赛高新材料有限公司 | Reciprocating reducing roller |
| JP2013062179A (en) * | 2011-09-14 | 2013-04-04 | Nippon Zeon Co Ltd | Powder rolling device and manufacturing method of rolled sheet |
| 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 |
-
2020
- 2020-12-30 CN CN202011629696.6A patent/CN112895552A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5455453A (en) * | 1991-07-01 | 1995-10-03 | Sumitomo Electric Industries, Ltd. | Plastic package type semiconductor device having a rolled metal substrate |
| EP0618071A1 (en) * | 1993-03-31 | 1994-10-05 | TECNOMECCANICA Srl | Device to apply a plastic coating to both sides of a support |
| CN101053875A (en) * | 2006-04-10 | 2007-10-17 | 上海格林赛高新材料有限公司 | Reciprocating reducing roller |
| JP2013062179A (en) * | 2011-09-14 | 2013-04-04 | Nippon Zeon Co Ltd | Powder rolling device and manufacturing method of rolled sheet |
| 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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