Drying equipment for electromagnetic shielding non-woven fabric production after immersion and absorption
By adjusting the positions of the drying components and guide wheel components, and combining them with the design of the circulating fan, the problems of drying path length and temperature in the production of electromagnetic shielded nonwoven fabrics were solved, achieving stability and uniformity in low-temperature drying, adapting to nonwoven fabrics of different thicknesses, and improving drying efficiency and cleanliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU CHENGZE NEW MATERIAL CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-24
AI Technical Summary
Existing electromagnetic shielding nonwoven fabric production equipment suffers from problems such as limited drying path length and excessively high temperatures leading to poor film stability and uneven performance during the drying process.
An adjustable drying component and guide wheel component were designed. Air circulation was achieved through a circulating fan. By combining multiple sets of drying components and guide wheels, the trajectory and heat distribution of the nonwoven fabric in the drying channel were adjusted, making it suitable for nonwoven fabrics of different thicknesses.
It achieves stability and uniformity of the film layer during low-temperature drying, adapts to nonwoven fabrics of different thicknesses, and improves drying efficiency and cleanliness.
Smart Images

Figure CN224162921U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nonwoven fabric processing, specifically to a drying device for impregnation after production of electromagnetic shielding nonwoven fabric. Background Technology
[0002] Non-woven fabric, also known as non-woven cloth, is composed of oriented or randomly arranged fibers. It is a new generation of environmentally friendly material, named for its resemblance to cloth and some of its properties. Non-woven fabric is also a commonly used substrate for electromagnetic shielding films, and its production process requires high standards in the impregnation, absorption, and drying stages.
[0003] For example, Chinese patent CN208455252U discloses an impregnation and drying equipment for the production of nonwoven fabrics for electromagnetic shielding film substrates. The drying function in this equipment is a simple heating and drying process. Due to the different thicknesses of the fabrics and the different shielding layers being impregnated, higher requirements are placed on the drying process. Traditionally, due to the limited length of the drying path, higher temperatures are generally used for drying. Short drying times result in poor stability and uneven performance of the dried film layer. Utility Model Content
[0004] The purpose of this invention is to provide a drying device for the impregnation process in the production of electromagnetic shielding nonwoven fabrics to solve the above-mentioned technical problems.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] The drying equipment for impregnation of electromagnetic shielded nonwoven fabric includes a main body, which includes a cover. A drying channel is formed inside the cover, and multiple drying components are installed inside the drying channel. A set of guide wheels for guiding the movement of the nonwoven fabric is also installed inside the drying channel. Fixed columns are installed on the left and right sides of the drying equipment and are fixed to the side plates of the cover. The guide wheels are distributed on the upper and lower sides of the drying equipment. A circulating fan is installed inside the cover to circulate the air inside the cover.
[0007] Preferably, there are two sets of drying components: one set is located at the inlet end and in the upper space of the drying channel, and the other set is located at the outlet end and in the lower space of the drying channel.
[0008] Preferably, the guide wheel assembly includes guide wheel one, guide wheel two, guide wheel three, guide wheel four, guide wheel five and guide wheel six. Guide wheel one, guide wheel two and guide wheel three are located at the corners of the drying components, and guide wheel four, guide wheel five and guide wheel six are located at the corners of another drying component.
[0009] Preferably, the guide wheel assembly also includes a first wheel at the inlet and a tail wheel at the outlet. The nonwoven fabric enters the drying channel through the first wheel and is finally guided by the tail wheel to complete the drying process.
[0010] Preferably, the side panel of the cover is provided with multiple sets of mounting holes, one end of the fixing post is sealed and inserted into the hole, and the other end is inserted into the drying component. The guide wheels of the guide wheel assembly are also installed between the side panels of the cover by being inserted into the holes.
[0011] Preferably, fan assemblies are installed above both the inlet and outlet.
[0012] Compared with the prior art, the beneficial effects of this utility model are: in this solution, the drying component and the guide wheel component can be replaced according to their own needs, thereby changing the trajectory of the nonwoven fabric and adjusting the exposure time of the nonwoven fabric in the drying channel. Secondly, this design makes low-temperature drying possible and can also be applied to nonwoven fabrics with higher thickness. Moreover, the heat distribution in the drying channel can be changed by adjusting the position of the drying component. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 A schematic diagram showing the arrangement of the drying and guiding components;
[0015] Figure 3 This is a schematic diagram of the drying assembly.
[0016] In the diagram: 1. Cover; 2. Drying channel; 3. Drying assembly; 4. Fixing column; 5. Side plate; 6. Guide wheel one; 7. Guide wheel two; 8. Guide wheel three; 9. Guide wheel four; 10. Guide wheel five; 11. Guide wheel six; 12. First wheel; 13. Tail wheel; 14. Insertion hole; 15. Fan assembly. Detailed Implementation
[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0018] Example 1
[0019] A drying device for impregnated nonwoven fabrics used in electromagnetic shielding production includes a main body, which comprises a cover 1. A drying channel 2 is formed within the cover 1, and multiple sets of drying components 3 are installed within the drying channel 2. Guide wheels for guiding the nonwoven fabric are also installed within the drying channel 2. Fixed columns 4 are located on the left and right sides of the drying device and are fixed to side plates 5 of the cover 1. The guide wheels are distributed on the upper and lower sides of the drying device. A circulating fan is installed within the cover 1 to circulate the air within it. This drying device is mainly used for drying impregnated nonwoven fabrics, and the key technical problems it addresses are the distribution of the heat field in the drying space and the design of the drying path.
[0020] In this embodiment, there are two sets of drying components 3. One set is located at the inlet end, in the upper space of the drying channel 2, and the other set is located at the outlet end, in the lower space of the drying channel 2. This design of the drying components 3 ensures the reliability of drying, and the distribution and design of the two drying components 3 can ensure that the heat distribution within the drying channel 2 is as consistent as possible, thus guaranteeing the uniformity of the drying process.
[0021] To extend the drying time, the guide wheel assembly includes guide wheel 6, guide wheel 7, guide wheel 8, guide wheel 9, guide wheel 10, and guide wheel 11. Guide wheels 6, 7, and 8 are located at the corners of drying assembly 3, while guide wheels 9, 10, and 11 are located at the corner of another drying assembly 3. The drying path revolves around drying assembly 3, thus ensuring drying efficiency.
[0022] Since the material to be dried is non-woven fabric, the guide wheel assembly also includes a first wheel 12 at the inlet and a tail wheel 13 at the outlet. The non-woven fabric enters the drying channel 2 through the first wheel 12 and is finally guided by the tail wheel 13 to complete the drying process. The structure of the first wheel 12 and the tail wheel 13 provides a guiding function for the non-woven fabric, thereby ensuring the stable operation of the non-woven fabric in the channel. The tension of the non-woven fabric is designed to prevent it from being too tight, which would cause the film layer to fall off, while also ensuring that it is not too loose, which would prevent it from being transported and falling off.
[0023] To allow for adjustment of the positions of the drying assembly 3 and the guide wheel assembly, enabling the equipment to accommodate nonwoven fabrics with different requirements, the side plate 5 of the cover 1 is provided with multiple sets of mounting holes 14. One end of the fixing post 4 is sealed and inserted into the hole 14, and the other end is inserted into the drying assembly 3. The guide wheels of the guide wheel assembly are also installed between the side plates 5 of the cover 1 by inserting them into the holes 14. Fan assemblies 15 are provided above both the inlet and outlet. The fan assembly 15 at the inlet dries the wet nonwoven fabric, while the fan assembly 15 at the outlet removes dust from the dried nonwoven fabric, thus ensuring the cleanliness of the nonwoven fabric.
[0024] In this design, both the drying component 3 and the guide wheel assembly can be repositioned according to specific needs, thereby altering the trajectory of the nonwoven fabric and adjusting its exposure time within the drying channel 2. Furthermore, this design enables low-temperature drying and is suitable for thicker nonwoven fabrics. Additionally, adjusting the position of the drying component 3 can change the heat distribution within the drying channel 2.
[0025] Example 2
[0026] This embodiment is described below based on embodiment 1, wherein two fans are provided inside the fan assembly 15.
[0027] Example 3
[0028] The difference between this embodiment and embodiment 1 is that the guide wheel and the side plate 5 of the cover 1 are detachably connected.
Claims
1. A drying device for impregnation after production of electromagnetic shielding nonwoven fabric, characterized in that: The equipment includes a main body, which includes a cover (1). A drying channel (2) is formed inside the cover (1). Multiple drying components (3) are installed inside the drying channel (2). A guide wheel set for guiding the non-woven fabric is also installed inside the drying channel (2). Fixed columns (4) are installed on the left and right sides of the drying equipment. The fixed columns (4) are fixed on the side plate (5) of the cover (1). The guide wheel set is distributed on the upper and lower sides of the drying equipment. A circulating fan is installed inside the cover (1). The circulating fan is used to circulate the air inside the cover (1).
2. The drying equipment after impregnation for the production of electromagnetic shielding nonwoven fabric according to claim 1, characterized in that: There are two sets of drying components (3), one set is set at the inlet end and located in the upper space of the drying channel (2), and the other set is set at the outlet end and located in the lower space of the drying channel (2).
3. The drying equipment after impregnation for the production of electromagnetic shielding nonwoven fabric according to claim 2, characterized in that: The guide wheel assembly includes guide wheel one (6), guide wheel two (7), guide wheel three (8), guide wheel four (9), guide wheel five (10) and guide wheel six (11). Guide wheel one (6), guide wheel two (7) and guide wheel three (8) are located at the corners of the drying assembly (3), and guide wheel four (9), guide wheel five (10) and guide wheel six (11) are located at the corners of another drying assembly (3).
4. The drying equipment after impregnation for the production of electromagnetic shielding nonwoven fabric according to claim 3, characterized in that: The guide wheel assembly also includes a first wheel (12) at the inlet and a tail wheel (13) at the outlet. The nonwoven fabric enters the drying channel (2) through the first wheel (12) and is finally guided by the tail wheel (13) to complete the drying process.
5. The drying equipment after impregnation for the production of electromagnetic shielding nonwoven fabric according to claim 4, characterized in that: The side plate (5) of the cover (1) is provided with multiple sets of mounting holes (14). One end of the fixing column (4) is sealed and inserted into the hole (14), and the other end is inserted into the drying component (3). The guide wheels of the guide wheel group are also installed between the side plates (5) of the cover (1) by inserting them into the holes (14).
6. The drying equipment after impregnation for the production of electromagnetic shielding nonwoven fabric according to claim 5, characterized in that: Fan assemblies (15) are installed above both the inlet and outlet.
Citation Information
Patent Citations
Electromagnetic shielding film substrate manufacture of non -woven fabric inhales drying equipment with soaking
CN208455252U