Composite processing device for composite wave-absorbing material

Abstract

The utility model discloses a composite processing device for a composite wave-absorbing material, which takes PET (Polyethylene Terephthalate) as a base material and comprises a base material winding shaft, a wave-transparent layer unwinding shaft, a reflecting layer unwinding shaft, a wave-absorbing layer unwinding shaft, an upper PET unwinding shaft, a lower PET unwinding shaft, a hot press unit, an upper PET winding shaft, a lower PET winding shaft and a wave-absorbing finished product winding shaft, the wave-transparent layer roll is arranged on the wave-transparent layer unwinding shaft, the wave-absorbing layer roll is arranged on the reflecting layer unwinding shaft, the reflecting layer roll is arranged on the wave-absorbing layer unwinding shaft, PET with the wave-transparent layer and the wave-absorbing layer torn off is arranged on the base material winding shaft and serves as a base material, and after the wave-transparent layer and the wave-absorbing layer are attached to the base material, the reflecting layer is overlaid. The first layer of the composite wave-absorbing material is the transmission layer, and electromagnetic waves can smoothly enter the wave-absorbing material. The second layer of the composite wave-absorbing material is the absorbing layer, and electromagnetic waves of various frequencies can be absorbed through matching of different types of absorbents, different morphologies and different particle sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic interference and heat-conducting material preparation, in particular to a processing device for an ultra-soft heat-conducting wave-absorbing material. Background Art

[0002] With the rapid development of information technology, electronic products are developing towards high frequency, miniaturization and integration, and electromagnetic interference and electromagnetic radiation pollution are becoming more and more serious. Absorbing materials can effectively absorb electromagnetic waves incident on their surfaces and convert them into heat or other forms of energy, which can effectively solve the problems related to electromagnetic interference and electromagnetic radiation pollution. According to the loss mechanism of electromagnetic waves by materials, absorbing materials can be divided into electrical loss type and magnetic loss type. The electrical loss type mainly relies on the interface polarization of the material to absorb electromagnetic waves, such as carbon nanotubes, graphene, carbon black, etc. The magnetic loss type mainly absorbs electromagnetic waves through hysteresis loss, domain resonance loss, and eddy current loss, such as carbonyl iron, ferrite, metal soft magnetic powder, etc. The impedance of absorbing materials and air is quite different, and there is a tendency for "impedance mismatch". The electromagnetic waves are reflected back into the air by the absorbing materials, and the absorbing effect cannot be achieved. The loss of electromagnetic waves by a single absorber is limited, and it is difficult for the electromagnetic waves entering the absorbing material to be completely lost at once.

[0003] To this end, the applicant has designed a composite processing device for composite absorbing materials after many experiments. Utility Model Content

[0004] The purpose of the utility model is to provide a composite absorbing material composite processing device. The first layer of the composite absorbing material is a transmission layer, and electromagnetic waves can smoothly enter the absorbing material. The second layer of the composite absorbing material is an absorption layer. Through the combination of different types of absorbents, different morphologies, and different particle sizes, electromagnetic waves of various frequencies can be absorbed. Due to the incomplete absorption of traditional absorbing materials, a part of the electromagnetic waves will pass through the absorbing layer after absorption loss. The composite absorbing material is designed with a reflection layer on the third layer. The electromagnetic waves passing through the second layer will be reflected to the absorbing layer for further absorption loss, which can completely lose the electromagnetic waves.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A composite absorbing material composite processing device, the composite absorbing material uses PET as a substrate, comprises: a substrate winding shaft, a wave-transmitting layer unwinding shaft, a reflective layer unwinding shaft, a wave-absorbing layer unwinding shaft, an upper PET unwinding shaft, a lower PET unwinding shaft, a hot pressing unit, an upper PET winding shaft, a lower PET winding shaft and a finished wave-absorbing product winding shaft, the wave-transmitting layer roll is arranged on the wave-transmitting layer unwinding shaft, the wave-absorbing layer roll is arranged on the reflective layer unwinding shaft, the reflective layer roll is arranged on the wave-absorbing layer unwinding shaft, the PET with the wave-transmitting layer and the wave-absorbing layer torn off is arranged on the substrate winding shaft as the substrate, the wave-transmitting layer and the wave-absorbing layer are laminated on the substrate, and then the reflective layer is superimposed. The wave-transmitting layer, the wave-absorbing layer and the reflective layer are stacked together, and PET rolls are respectively set on the upper PET unwinding shaft and the lower PET unwinding shaft. The upper and lower PET layers sandwich the wave-transmitting layer, the wave-absorbing layer and the reflective layer, and enter the hot pressing unit horizontally together. The hot pressing unit is composed of two heat processing machines. The upper PET reel and the lower PET reel are set after the hot pressing unit. The upper PET and the lower PET on the outer surface of the material are torn off by the upper PET reel and the lower PET reel respectively after the hot pressing composite material, and the finished material after removing the surface PET is collected by the wave-absorbing finished product reel.

[0007] The reflective layer comprises a substrate and a coating arranged on the surface of the substrate, the substrate is PET, and the coating is an aluminum coating.

[0008] A guide roller is arranged at the position where the wave-transmitting layer, the wave-absorbing layer and the reflective layer are attached to the substrate, and a guide roller is also arranged at the position before the finished material is rolled up and collected from the wave-absorbing finished product.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] (1) The first layer of the composite absorbing material is a transmission layer, and electromagnetic waves can smoothly enter the absorbing material.

[0011] (2) The second layer of the composite absorbing material is the absorption layer, which can absorb electromagnetic waves of various frequencies by combining different types of absorbers, different morphologies, and different particle sizes.

[0012] (3) Due to the incomplete absorption of traditional absorbing materials, a part of the electromagnetic waves will pass through the absorbing layer after the absorption loss. The composite absorbing material is designed with a reflective layer in the third layer. The electromagnetic waves passing through the second layer will be reflected to the absorbing layer for further absorption loss, which can completely dissipate the electromagnetic waves. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a composite absorbing material composite processing device. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] like Figure 1 As shown, a composite absorbing material composite processing device, the composite absorbing material uses PET as a substrate, including: a substrate winding shaft 1, a wave-transmitting layer unwinding shaft 2, a reflective layer unwinding shaft 3, an absorbing layer unwinding shaft 4, an upper PET unwinding shaft 5, a lower PET unwinding shaft 6, a hot pressing unit 7 and an upper PET winding shaft 8, a lower PET winding shaft 9 and a finished absorbing product winding shaft 10, the wave-transmitting layer roll is arranged on the wave-transmitting layer unwinding shaft 2, the wave-absorbing layer roll is arranged on the reflective layer unwinding shaft 3, the reflective layer roll is arranged on the absorbing layer unwinding shaft 4, the PET with the wave-transmitting layer and the wave-absorbing layer torn off is arranged on the substrate winding shaft 1, as a substrate, and the wave-transmitting layer is bonded to the substrate. After the wave-transmitting layer and the wave-absorbing layer, the reflective layer is superimposed, and the wave-transmitting layer, the wave-absorbing layer and the reflective layer are stacked together. PET rolls are respectively arranged on the upper PET unwinding shaft 5 and the lower PET unwinding shaft 6. The upper and lower PET layers sandwich the wave-transmitting layer, the wave-absorbing layer and the reflective layer, and enter the hot pressing unit 7 horizontally together. The hot pressing unit 7 is composed of two hot presses. An upper PET winding shaft 8 and a lower PET winding shaft 9 are arranged after the hot pressing unit 7. The upper PET winding shaft 8 and the lower PET winding shaft 9 respectively tear off the upper PET and the lower PET on the outer surface of the material after hot pressing and compounding, and the finished material after removing the surface PET is collected by the wave-absorbing finished product winding shaft 10.

[0016] The reflective layer comprises a substrate and a coating arranged on the surface of the substrate, the substrate is PET, and the coating is an aluminum coating.

[0017] A guide roller 11 is arranged at the position where the wave-transmitting layer, the wave-absorbing layer and the reflective layer are attached to the substrate, and a guide roller 11 is also arranged at the position before the finished material is collected by the wave-absorbing finished product reel 10 .

[0018] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite absorbing material composite processing device, wherein the composite absorbing material uses PET as a base material, characterized in that: include: A substrate reel (1), a wave-transmitting layer unwinding shaft (2), a reflective layer unwinding shaft (3), a wave-absorbing layer unwinding shaft (4), an upper PET unwinding shaft (5), a lower PET unwinding shaft (6), a hot pressing unit (7), an upper PET reel (8), a lower PET reel (9), and a wave-absorbing finished product reel (10), wherein the wave-transmitting layer roll is arranged on the wave-transmitting layer unwinding shaft (2), the wave-absorbing layer roll is arranged on the reflective layer unwinding shaft (3), and the reflective layer roll is arranged on the wave-absorbing layer unwinding shaft (4), and a PET with the wave-transmitting layer and the wave-absorbing layer torn off is arranged on the substrate reel (1) as the substrate, and after the wave-transmitting layer and the wave-absorbing layer are laminated on the substrate, the reflective layer is laminated, and the wave-transmitting layer is laminated on the substrate. The wave-transmitting layer, the wave-absorbing layer and the reflective layer are stacked together, and PET rolls are respectively arranged on the upper PET unwinding shaft (5) and the lower PET unwinding shaft (6). The upper and lower PET layers sandwich the wave-transmitting layer, the wave-absorbing layer and the reflective layer, and enter the hot pressing unit (7) horizontally together. The hot pressing unit (7) is composed of two heat presses. An upper PET rewinding shaft (8) and a lower PET rewinding shaft (9) are arranged behind the hot pressing unit (7). The upper PET layer and the lower PET layer on the outer surface of the material after hot pressing and compounding are respectively torn off by the upper PET rewinding shaft (8) and the lower PET rewinding shaft (9). The finished product material after removing the surface PET is collected by the wave-absorbing finished product reel (10).

2. The composite processing device for composite absorbing materials according to claim 1, characterized in that: The reflective layer comprises a substrate and a coating arranged on the surface of the substrate, the substrate is PET, and the coating is an aluminum coating.

3. The composite processing device for composite absorbing materials according to claim 1, characterized in that: A guide roller (11) is arranged at the position where the wave-transmitting layer, the wave-absorbing layer and the reflective layer are attached to the substrate, and a guide roller (11) is also arranged at the position before the finished material is collected by the wave-absorbing finished product reel (10).

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