Production device of flaky wave-absorbing material

Abstract

The utility model discloses a flaky wave-absorbing material production device which comprises a machine body, a heating assembly and a cooling assembly, and the machine body comprises two oppositely arranged side walls; the heating assembly comprises two heating rollers which are rotatably arranged between the two side walls; the cooling assembly comprises two cooling rollers which are rotatably arranged between the two side walls. The cooling assembly is additionally arranged on the basis of an existing heating assembly, the cooling assembly comprises the two cooling rollers internally provided with the channels respectively, after cooling liquid is introduced into the channels, the temperature of the cooling rollers can be reduced, and then the temperature of the wave absorbing material passing through the position between the cooling rollers is reduced; the problems of material deformation, material accumulation and the like caused by too high temperature are solved, the pressing effect of the two cooling rollers has a secondary forming effect on the wave-absorbing material subjected to thermoplastic treatment, and the product forming yield is increased. In addition, cooling liquid circulation is formed in the machine body, it is ensured that the temperature of the cooling liquid can be accurately, stably and flexibly controlled, the problem that the performance of the wave-absorbing material is reduced due to uneven cooling is solved, the requirement for the cooling liquid and energy consumption are reduced, and the device cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wave -absorbing material production technical field especially the production device for sheet wave -absorbing material. BACKGROUND

[0002] Wave -absorbing material is a kind of material that can absorb or greatly weaken the electromagnetic wave energy received on its surface, thereby reducing the interference of electromagnetic wave, it not only has the wave -absorbing performance of anti-electromagnetic interference, microwave directional enhancement, clutter suppression, but also considers high and low temperature resistance, bearing and other performances.

[0003] The performance of sheet wave -absorbing material is closely related to its thickness and shape, whether the required thickness and shape requirements can be achieved in the processing process is the important guarantee for the stability and consistency of its wave -absorbing performance. The sheet wave -absorbing material in the prior art is generally heated and plasticized by double-roller or multi-roller tablet press during production, and the structure is solidified and formed during the heating process, and finally the sheet wave -absorbing material is obtained. For example, the wave -absorbing material disclosed in the Chinese patent application No. 202411411998.4 includes a calender main body and a roller installed on the calender main body, and the product is formed by multiple rollers. Such production method has the following defects and deficiencies:

[0004] 1) The sheet wave -absorbing material is heated and shaped by the heating roller of double-roller or multi-roller tablet press, and the temperature of the sheet wave -absorbing material is too high when it is discharged, and the material is often in a semi-flowing state, which is easy to be affected by its own gravity and deformed, resulting in low product yield of sheet wave -absorbing material;

[0005] 2) The temperature of the sheet wave -absorbing material after heating and shaping is too high, and the material transitions from the plastic stage to the elastic stage slowly, and the required time is long, resulting in low production efficiency, and in the case of fast production speed, the material is easy to accumulate, affecting the appearance and performance of the material, and reducing the product yield.

[0006] Therefore, it is necessary to invent a production device that can avoid the deformation of sheet wave -absorbing material and improve the product yield in the prior art. INVENTION CONTENTS

[0007] In order to overcome the technical problems of the traditional double-roller tablet press in producing sheet wave -absorbing material, such as material deformation caused by high temperature, low production efficiency and material accumulation, the utility model provides a production device for sheet wave -absorbing material.

[0008] The utility model discloses a production device for sheet wave -absorbing material, which comprises:

[0009] A production device for sheet wave -absorbing material, comprising:

[0010] A machine body comprising two oppositely arranged side walls;

[0011] A heating assembly comprising a first heating roller and a second heating roller rotatably arranged between the two side walls, and a first working position for the wave-absorbing material to pass between the first heating roller and the second heating roller;

[0012] A cooling assembly comprising a first cooling roller and a second cooling roller rotatably arranged between the two side walls, and a second working position for the wave-absorbing material to pass between the first cooling roller and the second cooling roller;

[0013] The machine body is internally provided with a cooling channel, the first cooling roller and the second cooling roller are internally provided with a first channel and a second channel, respectively, which are in communication with the cooling channel, and the cooling channel, the first channel and the second channel are used for flowing of cooling liquid.

[0014] In one preferred embodiment of the present application, a specific structural design scheme for how to realize circulation of cooling liquid is provided.

[0015] In the technical scheme of this embodiment, the machine body is externally provided with a cooling box in communication with the interior of the machine body, the cooling box is used for placing cooling liquid, so that the interior of the cooling box, the cooling channel, the first channel and the second channel form a cooling liquid circulation flow channel, and the cooling liquid circulation flow channel is provided with a low-temperature liquid pump.

[0016] Further, the cooling channel is provided with a cooling liquid inlet in communication with an outlet of the cooling box, the first channel is provided with a first cooling liquid outlet, the second channel is provided with a second cooling liquid outlet, and the first cooling liquid outlet and the second cooling liquid outlet are in communication with an inlet of the cooling box.

[0017] In another preferred embodiment of the present application, a specific structural design scheme for how to realize uniform cooling effect of the wave-absorbing material is provided.

[0018] In the technical scheme of this embodiment, the first channel and the second channel have the same inner diameter, and the first cooling roller and the second cooling roller have the same thickness.

[0019] Further, the first cooling roller and the second cooling roller are made of the same material.

[0020] In another preferred embodiment of the present application, a specific structural design scheme for how to realize adjustable and monitorable distance between the first cooling roller and the second cooling roller is provided.

[0021] In the technical scheme of the embodiment, the two side walls are each provided with a sliding groove, and the two ends of the first cooling roller and the second cooling roller are each provided with a sliding block, the sliding block being slidably arranged in the sliding groove, so that the distance between the first cooling roller and the second cooling roller can be adjusted.

[0022] Further, the production device of the sheet-shaped wave-absorbing material further comprises a distance detection device arranged in the sliding groove and used for detecting the distance between the first cooling roller and the second cooling roller.

[0023] Further, the rotational linear speed of the first heating roller and the second heating roller is V1, and the rotational linear speed of the first cooling roller and the second cooling roller is V2, and the linear speed ratio of the two is V1:V2=1:1.

[0024] In another preferred scheme of the utility model, a specific structural design scheme about how to realize the scraping, collecting and cutting operations on the machine body is provided.

[0025] In the technical scheme of the embodiment, a scraping knife is further arranged between the two side walls, and the scraping knife is arranged at the adjacent position of the first heating roller and / or the second heating roller.

[0026] Further, the production device of the sheet-shaped wave-absorbing material further comprises a collecting roller and a cutting knife, the collecting roller is located at the discharging side of the cooling assembly, and the cutting knife is located between the collecting roller and the cooling assembly.

[0027] In summary, the production device of the sheet-shaped wave-absorbing material provided by the utility model has at least the following technical effects compared with the prior art:

[0028] 1) The machine body of the utility model adds a cooling assembly on the basis of the existing heating assembly, the wave-absorbing material enters the cooling assembly after being heated and shaped by the heating assembly, the cooling assembly comprises two cooling rollers each provided with a channel, the temperature of the cooling roller can be reduced after the channel is supplied with cooling liquid, thereby reducing the temperature of the wave-absorbing material passing between the cooling rollers, accelerating the wave-absorbing material to be shaped into a sheet-shaped structure, preventing the material deformation phenomenon caused by excessively high temperature and the problems of low production efficiency and material accumulation caused by slow transition from the plastic stage to the elastic stage, and improving the product forming yield.

[0029] 2) The machine body is internally provided with a cooling channel, the cooling channel is communicated with the channels of the two cooling rollers, so that a cooling liquid circulation is formed in the machine body, ensuring that the cooling liquid temperature can be accurately, stably and flexibly controlled, preventing the performance of the wave-absorbing material from being reduced due to uneven cooling; in addition, the circulating cooling system can also reduce the demand for cooling liquid and energy consumption, and reduce the cost of the device.

[0030] 3) The cooling assembly has the secondary forming effect besides the cooling effect, and the slightly deformed wave-absorbing material after the hot plastic forming of the heating roller can be secondarily formed through the pressing effect between the two cooling rollers, and the product forming yield is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a structure schematic view of the production device of the sheet wave-absorbing material of the utility model;

[0032] Figure 2 It is a top view of the production device of the sheet wave-absorbing material of the utility model;

[0033] Figure 3 It is Figure 2 The A-A section view schematic view shown in the figure;

[0034] Figure 4 It is a side view of the production device of the sheet wave-absorbing material of the utility model;

[0035] Figure 5 It is Figure 4 The B-B section view schematic view shown in the figure;

[0036] Figure 6 It is a partial structure schematic view of the production device of the sheet wave-absorbing material of the utility model;

[0037] Among them, the meaning of the reference signs is as follows:

[0038] 1, machine body; 11, cooling channel; 111, cooling liquid inlet; 12, sliding groove;

[0039] 2, heating assembly; 21, first heating roller; 22, second heating roller;

[0040] 3, cooling assembly; 31, first cooling roller; 32, second cooling roller; 33, first channel; 331, first cooling liquid outlet; 34, second channel; 341, second cooling liquid outlet; 35, sliding block;

[0041] 4, cooling box;

[0042] 5, scraping knife;

[0043] 6, material collecting roller;

[0044] 7, cutting knife;

[0045] 8, distance detection device;

[0046] 9, wave-absorbing material. DETAILED DESCRIPTION

[0047] For better understanding and implementation, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application.

[0048] In the description of the present application, it should be noted that the directions or position relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in that the indicated devices or elements must have a specific direction, be constructed and operated in a specific direction.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0050] Referring to Figure 1 As shown in the drawings, according to the embodiments of the present application, the production device of the sheet-shaped wave-absorbing material comprises a machine body 1, the machine body 1 comprises two oppositely arranged side walls, a containing space for installing a heating assembly 2 and a cooling assembly 3 and the like is formed between the two side walls, and the containing space can also provide a machining space for the manufacturing process of the wave-absorbing material 9 on the heating assembly 2 and the cooling assembly 3 and the like.

[0051] Referring to Figures 1-3 As shown in the drawings, the production device of the sheet-shaped wave-absorbing material further comprises a heating assembly 2, the heating assembly 2 comprises a first heating roller 21 and a second heating roller 22, and the first heating roller 21 and the second heating roller 22 are rotatably arranged between the two side walls of the machine body. Among them, a first station for the wave-absorbing material 9 to pass through is arranged between the first heating roller 21 and the second heating roller 22, and the wave-absorbing material 9 is heated and shaped under the pressing action of the first heating roller 21 and the second heating roller 22 when passing through the first station. Specifically, the first heating roller 21 and the second heating roller 22 of the present application are preferably arranged horizontally, which facilitates the wave-absorbing material 9 to pass through the first station between the first heating roller 21 and the second heating roller 22 from top to bottom, and prevents the wave-absorbing material 9 from being deformed due to its own gravity when feeding in other ways (such as horizontal direction or inclined direction).

[0052] Referring to Figures 1-3As shown, the production device of the sheet-shaped wave-absorbing material further comprises a cooling assembly 3, the cooling assembly 3 comprises a first cooling roller 31 and a second cooling roller 32, and the first cooling roller 31 and the second cooling roller 32 are rotatably arranged between the two side walls. Among them, the second cooling assembly 4 is provided between the first cooling roller 31 and the second cooling roller 32 for the wave-absorbing material 9 to pass through, and the wave-absorbing material 9 enters the second working position between the first cooling roller 31 and the second cooling roller 32 after being heated and shaped in the first working position. When passing through the second working position, the cooling assembly 4 has a secondary shaping effect on the wave-absorbing material 9. After the wave-absorbing material 9 is slightly deformed after heat shaping, the wave-absorbing material 9 is subjected to secondary shaping through the pressing action between the first cooling roller 31 and the second cooling roller 32, so as to ensure the appearance and performance of the product and improve the product forming yield.

[0053] Referring to Figures 4-5 As shown, in the technical scheme of this embodiment, the inside of the machine body 1 is provided with a cooling channel 11, and the inside of the first cooling roller 31 and the second cooling roller 32 is respectively provided with a first channel 33 and a second channel 34, and the first channel 33 and the second channel 34 are in communication with the cooling channel 11. Among them, the cooling channel 11, the first channel 33 and the second channel 34 are used for flowing cooling liquid. Specifically, when the cooling liquid flows into the first channel 33 and the second channel 34, the temperature of the first cooling roller 31 and the second cooling roller 32 is reduced, thereby cooling the wave-absorbing material 9 passing through the second working position, accelerating the wave-absorbing material 9 to be shaped into a sheet-shaped structure, preventing the material from deforming due to high temperature and other problems, and preventing the material from being slow in the transition from the plastic stage to the elastic stage, thereby reducing the production efficiency and causing the material to accumulate and other problems, thereby further improving the product forming yield of the wave-absorbing material 9.

[0054] More specifically, since the cooling channel 11 and the first channel 33 and the second channel 34 are in communication, a cooling liquid circulation can be formed inside the machine body 1, so as to accurately, stably and flexibly control the temperature of the cooling liquid in the first channel 33 and the second channel 34, prevent the performance of the wave-absorbing material from being reduced due to uneven cooling, and other problems. In addition, the circulation cooling system formed by the above structure design can also reduce the demand for cooling liquid and energy consumption, and reduce the cost of the production device.

[0055] Preferably, the rotating directions of the first heating roller 21 and the second heating roller 22 are opposite, but the magnitudes of the rotating linear speeds are equal, both being V1; the rotating directions of the first cooling roller 31 and the second cooling roller 32 are opposite, but the magnitudes of the rotating linear speeds are equal, both being V2. Wherein, the linear speed ratio is V1:V2=1:1. Specifically, by setting the same linear speed magnitude, the speed of the first station discharging and the speed of the second station feeding can be kept consistent, preventing the material accumulation phenomenon between the first station and the second station due to V1 being greater than V2 (the first station discharging fast and the second station feeding slow), or the material intermediate rupture phenomenon due to V2 being greater than V1 (the second station feeding fast and the first station discharging slow).

[0056] Embodiment 1

[0057] In a preferred embodiment of the utility model, a specific structure design scheme about how to realize cooling liquid circulation is provided.

[0058] Referring to Figure 1 , Figure 2 and Figure 4 , in the technical scheme of this embodiment, the machine body 1 is provided with a cooling box 4 in communication with the inside of the machine body 1, the inside of the cooling box 4, the cooling channel 11, the first channel 33 and the second channel 34 combine to form a cooling liquid circulation flow channel. Wherein, the cooling liquid circulation flow channel is provided with a low-temperature liquid pump, which can be arranged at any position of the cooling liquid circulation flow channel, preferably arranged in the inside of the cooling box 4. Specifically, the cooling box 4 is used for placing cooling liquid, which can be directly introduced into or introduced into the cooling channel 11 through an external pipeline, and then flow into the first channel 33 and the second channel 34 respectively, and finally flow back to the inside of the cooling box 4, forming a cooling liquid circulation flow channel. That is, the cooling liquid circulation flow channel includes two parts, which are: the first cooling liquid circulation flow channel formed by the inside of the cooling box 4, the cooling channel 11 and the first channel 33, and the second cooling liquid circulation flow channel formed by the inside of the cooling box 4, the cooling channel 11 and the second channel 34. In particular, the cooling box 4 is arranged at the outer wall position of the machine body 1 and fixedly connected with the machine body 1.

[0059] In particular, the cooling liquid in the embodiment can use low-temperature water, and in some scenes requiring rapid cooling, ethanol plus dry ice or other rapid cooling materials can be used.

[0060] Referring to Figure 4 and Figure 5As shown in the embodiment, in a preferred scheme of the embodiment, the cooling channel 11 is provided with a cooling liquid inlet 111, and the cooling liquid inlet 111 is in communication with the outlet of the cooling box 4. Preferably, the cooling liquid inlet 111 is arranged at the position of the outer side wall of the body 1 and is covered by the cooling box 4, and the outlet of the cooling box 4 is arranged in correspondence with the cooling liquid inlet 111. In addition, the first channel 33 is provided with a first cooling liquid outlet 331, and the second channel 34 is provided with a second cooling liquid outlet 341, and the first cooling liquid outlet 331 and the second cooling liquid outlet 341 are in communication with the inlet of the cooling box 4. Preferably, the inlet of the cooling box 4 is arranged at the top position thereof, and the first cooling liquid outlet 331 and the second cooling liquid outlet 341 are in communication with the inlet of the cooling box 4 through external pipelines, so as to ensure that the cooling liquid after completing the cooling effect flows for a distance and then returns to the inside of the cooling box 4, thereby improving the accurate and stable control of the temperature of the cooling liquid.

[0061] Embodiment 2

[0062] In another preferred embodiment of the utility model, a specific structural design scheme about how to realize uniform cooling effect of the wave-absorbing material 9 is provided.

[0063] Referring to Figure 5 As shown in the technical scheme of the embodiment, the inner diameters of the first channel 33 and the second channel 34 are the same, and the thicknesses of the first cooling roller 31 and the second cooling roller 32 are equal. Through the above structural design manner, it can be ensured that the amount of the cooling liquid flowing into the first channel 33 and the second channel 34 of the cooling liquid circulation system is the same, and on this basis, the heat conduction distances on the first cooling roller 31 and the second cooling roller 32 are equal, thereby ensuring that the cooling and temperature reduction effects of the first cooling roller 31 and the second cooling roller 32 on the two side surfaces of the wave-absorbing material 9 passing through the second station are the same and uniform, and the product appearance and performance of the wave-absorbing material 9 are ensured, and the product forming yield is improved.

[0064] In particular, the outer side surfaces of the first cooling roller 31 and the second cooling roller 32 are regular cylindrical surfaces, and the first channel 33 and the second channel 34 are preferably cylindrical hollow cavities inside the first cooling roller 31 and the second cooling roller 32.

[0065] In a preferred scheme of the embodiment, the first cooling roller 31 and the second cooling roller 32 are made of the same material, so as to ensure that the heat conduction efficiencies of the first cooling roller 31 and the second cooling roller 32 are the same, and the consistency of the cooling and temperature reduction effects of the first cooling roller 31 and the second cooling roller 32 on the two side surfaces of the wave-absorbing material 9 is further improved, the product appearance and performance of the wave-absorbing material 9 are ensured, and the product forming yield is improved.

[0066] Embodiment 3

[0067] In another preferred embodiment of the utility model, a specific structural design scheme about how to realize the distance adjustable and monitorable between the first cooling roller 31 and the second cooling roller 32 is provided.

[0068] Referring to Figure 6 As shown in the technical scheme of the embodiment, both side walls of the machine body 1 are provided with sliding grooves 12, both ends of the first cooling roller 31 and the second cooling roller 32 are provided with sliding blocks 35, and the sliding blocks 35 are slidably arranged in the sliding grooves 12. Through the above structural design mode, the distance adjustment operation between the first cooling roller 31 and the second cooling roller 32 can be realized, that is, the size of the second station can be adjusted according to actual requirements, so that the wave-absorbing material 9 is formed into the required thickness size after the secondary forming action of the second station, and the structure design is simple and reasonable and the operation is simple and flexible. In addition, the wave-absorbing material 9 slightly deformed after thermoplastic forming is subjected to secondary forming through the pressing action of the first cooling roller 31 and the second cooling roller 32, further improving the product forming yield.

[0069] Preferably, the first cooling roller 31 and the second cooling roller 32 are arranged in an upper and lower manner, the sliding groove 12 is arranged in a vertical direction, and the distance adjustment between the first cooling roller 31 and the second cooling roller 32 is realized by the movement of the sliding block 35 in the sliding groove 12.

[0070] Referring to Figure 6 As shown in the technical scheme of the embodiment, both side walls of the machine body 1 are provided with sliding grooves 12, both ends of the first cooling roller 31 and the second cooling roller 32 are provided with sliding blocks 35, and the sliding blocks 35 are slidably arranged in the sliding grooves 12. Through the above structural design mode, the distance adjustment operation between the first cooling roller 31 and the second cooling roller 32 can be realized, that is, the size of the second station can be adjusted according to actual requirements, so that the wave-absorbing material 9 is formed into the required thickness size after the secondary forming action of the second station, and the structure design is simple and reasonable and the operation is simple and flexible. In addition, the wave-absorbing material 9 slightly deformed after thermoplastic forming is subjected to secondary forming through the pressing action of the first cooling roller 31 and the second cooling roller 32, further improving the product forming yield.

[0071] Preferably, the distance detection device 8 can adopt a high-precision distance sensor, and preferably a laser distance sensor or an infrared distance sensor.

[0072] Embodiment 4

[0073] In another preferred embodiment of the utility model, a specific structural design scheme about how to realize the distance adjustable and monitorable between the first cooling roller 31 and the second cooling roller 32 is provided.

[0074] Referring to Figure 1 and Figure 3As shown, in the technical scheme of this embodiment, the two side walls of the body 1 are also provided with a scraping knife 5, which is arranged adjacent to the first heating roller 21 and / or the second heating roller 22. When the number of the scraping knife 5 is one, the scraping knife 5 can be arranged adjacent to the first heating roller 21 or the second heating roller 22; when the number of the scraping knife 5 is two, the scraping knife 5 is arranged adjacent to the first heating roller 21 and the second heating roller 22. The adjacent position in this embodiment refers to that the scraping knife 5 can be in contact with the first heating roller 21 and / or the second heating roller 22 or there is a small gap between them. Specifically, by arranging the scraping knife 5, the blade of the scraping knife 8 can play a role in stripping the wave-absorbing material 9, and the impurities of the wave-absorbing material 9 can be removed in the subsequent processing process.

[0075] In particular, the scraping knife 5 and the two side walls of the body 1 can be rotatably connected, so that the distance between the blade of the scraping knife 5 and the wave-absorbing material 9 passing through the first station can be adjusted by rotating the scraping knife 5, so that the distance between the scraping knife 5 and the first station is adapted to the thickness of the wave-absorbing material 9.

[0076] Referring to Figures 1-3 As shown, in one preferred embodiment of this embodiment, the production device of the sheet wave-absorbing material further comprises a collecting roller 6, which is located on the discharge side of the cooling assembly 4, i.e. on the side where the discharge direction of the first station is located. The collecting roller 6 realizes the collecting operation of the wave-absorbing material 9 discharged from the second station by rotating, and effectively flattens the wave-absorbing material 9 by applying uniform pressure through the collecting roller 6, preventing the wave-absorbing material from wrinkling.

[0077] The production device of the sheet wave-absorbing material further comprises a cutting knife 7, which is located between the collecting roller 6 and the cooling assembly 4 and is arranged on both sides of the width direction of the wave-absorbing material 9, for cutting the width of the wave-absorbing material 9 to make the width of the formed wave-absorbing material 9 meet the product demand.

[0078] In summary, the production device of the sheet-shaped wave-absorbing material adds the cooling assembly 4 on the basis of the existing heating assembly, can reduce the temperature of the wave-absorbing material 9 between the two cooling rollers, accelerates the wave-absorbing material 9 to be formed into a sheet-shaped structure, prevents the material deformation phenomenon caused by too high temperature and the problems of low production efficiency and material accumulation caused by slow transition from the plastic stage to the elastic stage, improves the product forming yield. Moreover, the cooling liquid circulates in the machine body 1, ensures that the cooling liquid temperature can be accurately, stably and flexibly controlled, prevents the performance of the wave-absorbing material from being reduced due to uneven cooling and other problems, reduces the demand for cooling liquid and energy consumption, and reduces the cost of the device. In addition, the cooling assembly 4 also has a secondary forming effect, and the wave-absorbing material slightly deformed after hot plastic forming by the heating roller can be secondarily formed through the pressing effect between the two cooling rollers, ensures the appearance and performance of the product, and further improves the product forming yield.

[0079] The technical means disclosed in the utility model scheme is not only limited to the technical means disclosed in the above-mentioned embodiments, but also includes the technical scheme composed of any combination of the above technical features. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the principles of the utility model, and these improvements and refinements are also considered to be within the protection scope of the utility model.

Claims

1. A production apparatus for sheet-like microwave absorbing material, characterized in that, The application relates to a production device for sheet-shaped wave-absorbing materials. The device comprises a body, a heating assembly and a cooling assembly. The body comprises two oppositely arranged side walls. The heating assembly comprises a first heating roller and a second heating roller rotatably arranged between the two side walls, and a first working position for the wave-absorbing material is arranged between the first heating roller and the second heating roller. The cooling assembly comprises a first cooling roller and a second cooling roller rotatably arranged between the two side walls, and a second working position for the wave-absorbing material is arranged between the first cooling roller and the second cooling roller.

2. The apparatus according to claim 1, wherein The body is internally provided with a cooling channel, the first cooling roller and the second cooling roller are internally provided with a first channel and a second channel respectively, and the cooling channel, the first channel and the second channel are used for flowing cooling liquid.

3. The apparatus according to claim 2, wherein The body is externally provided with a cooling box in communication with the inside of the body, the cooling box is used for placing cooling liquid, the inside of the cooling box, the cooling channel, the first channel and the second channel form a cooling liquid circulation flow channel, and the cooling liquid circulation flow channel is provided with a low-temperature liquid pump.

4. The apparatus according to claim 1, wherein The cooling channel is provided with a cooling liquid inlet in communication with the outlet of the cooling box; the first channel is provided with a first cooling liquid outlet, the second channel is provided with a second cooling liquid outlet, and the first cooling liquid outlet and the second cooling liquid outlet are in communication with the inlet of the cooling box.

5. The apparatus according to claim 4, wherein The first channel and the second channel have the same inner diameter, and the first cooling roller and the second cooling roller have the same thickness.

6. The apparatus according to claim 1, wherein The first cooling roller and the second cooling roller are made of the same material.

7. The apparatus according to claim 6, wherein Both the side walls are provided with sliding grooves, both ends of the first cooling roller and the second cooling roller are provided with sliding blocks, the sliding blocks are slidably arranged in the sliding grooves, and the distance between the first cooling roller and the second cooling roller can be adjusted.

8. The apparatus according to claim 1, wherein The production device for the sheet-shaped wave-absorbing materials further comprises a distance detection device arranged in the sliding groove and used for detecting the distance between the first cooling roller and the second cooling roller.

9. The apparatus according to claim 1, wherein The linear speed of the first heating roller and the second heating roller is V1, the linear speed of the first cooling roller and the second cooling roller is V2, and the linear speed ratio is V1:V2=1:

1.

10. The apparatus according to claim 1, wherein A material scraping knife is further arranged between the two side walls and adjacent to the first heating roller and / or the second heating roller. The production device for the sheet-shaped wave-absorbing materials further comprises a material collecting roller and a material cutting knife, the material collecting roller is arranged on the material outlet side of the cooling assembly, and the material cutting knife is arranged between the material collecting roller and the cooling assembly.

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