A mica tape composite coating apparatus

By designing the adhesive layer ventilation mechanism and the stacking mechanism, the problems of air bubbles and wrinkles in the mica sheet coating equipment were solved, achieving uniform coating and high-quality lamination of mica tape, and ensuring the electrical insulation and heat resistance of the mica tape.

CN224525124UActive Publication Date: 2026-07-21CHANGZHOU RONGDING CABLE MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU RONGDING CABLE MATERIAL CO LTD
Filing Date
2025-08-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing mica sheet coating equipment is prone to bubbles and wrinkles during the lamination process, which can cause the composite mica tape to bulge.

Method used

The adhesive layer ventilation mechanism and the stacking mechanism are adopted. By installing cotton rollers and groove-forming plates on mica sheets, the fluidity and heat energy of the adhesive are controlled. Combined with heat-conducting plates, the fluidity of the adhesive layer is reduced, ensuring uniform coating of the adhesive and rapid expulsion of air bubbles during lamination.

Benefits of technology

This effectively avoids air bubbles and wrinkles in composite mica tape, improves the bonding quality and stability of mica tape, and reduces the risk of glue overflow.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to mica tape coating technical field, concretely to a kind of mica tape composite coating equipment, including adhesive layer ventilation mechanism, two mica sheets passing through adhesive layer ventilation mechanism, laminating mechanism and two composite sheets passing through in laminating mechanism are installed on adhesive layer ventilation mechanism, and two composite sheets are superimposed on two mica sheets;The adhesive layer ventilation mechanism includes first end and second end, two glue pipes are installed in the inside of first end.The two cotton rollers of symmetric distribution between first end and second end are installed, after glue liquid is immersed in cotton roller, mica sheet passes through cotton roller and is pressed to it in an instant, glue liquid will be coated full mica sheet, and the furrow piece that is adapted to adhere to the mica sheet after full glue can be furrowed to glue layer, after composite sheet is pressed and contacted with furrowed glue layer in an instant, bubble between composite mica tape will be discharged from the ditch quickly, avoid that composite mica tape appears wrinkle and swelling phenomenon.
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Description

Technical Field

[0001] This utility model relates to the field of mica tape coating technology, specifically to a mica tape composite coating device. Background Technology

[0002] Mica tape is a strip-shaped product made by coating mica sheets with adhesive and then laminating them with other materials. Mica tape possesses excellent properties such as electrical insulation, heat resistance, and corrosion resistance, and is widely used in electronics, electrical appliances, aviation, aerospace, and chemical industries.

[0003] Currently, there are certain defects in the coating and bonding process of mica sheets and composite materials. Existing mica sheets are coated with adhesive using a clean and smooth roller. Although this coating method can fill the surface of the mica sheet with adhesive, air bubbles will appear the moment the composite sheet is superimposed on the mica sheet with full adhesive. In severe cases, this can cause wrinkles or bulging of the composite mica tape.

[0004] In view of this, a mica tape composite coating equipment was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows: A mica tape composite coating device includes an adhesive layer ventilation mechanism, two mica sheets passing through the adhesive layer ventilation mechanism, a stacking mechanism mounted on the adhesive layer ventilation mechanism, and two composite sheets passing through the stacking mechanism, with the two composite sheets stacked on the two mica sheets. The adhesive layer ventilation mechanism includes a first end and a second end, two adhesive delivery pipes installed inside the first end, an inner tube fixedly installed inside the adhesive delivery pipes, with the other end of the inner tube inserted into the interior of the second end, and a pressure-reducing outer tube movably installed outside the inner tube and a cotton roller fixedly installed outside the pressure-reducing outer tube. A separating plate is fixedly installed in the middle of the inner side of one end and the second end, and two mica sheets are adapted to be attached to both sides of the separating plate; two beams are installed on the inner side of the first end and the second end, and the two beams are located outside the two cotton rollers. Multiple groove-forming plates are fixedly installed on the outside of the beams, and the top of the groove-forming plates is adapted to be attached to the mica sheets; the stacking mechanism includes a first support plate and a second support plate fixedly installed at both ends of the separating plate, two sheet-transfer plates fixedly installed on the first support plate and the second support plate, and two composite sheets are adapted to be attached to the bottom of the two sheet-transfer plates.

[0007] In a preferred embodiment, the present invention can be further configured such that: a power supply module and two arc-shaped heat-conducting plates fixedly installed on the top of the sparse plate are mounted on the power supply module, and the arc-shaped heat-conducting plates are in the form of a quarter-circular ring structure.

[0008] In a preferred embodiment, the present invention can be further configured such that: a chassis is installed on the first end, a motor is fixedly installed inside the chassis, and a drive gear is installed on the motor.

[0009] In a preferred embodiment, the present invention can be further configured such that the stacking mechanism further includes two first rotating rollers movably installed inside the first support plate and the second support plate, and two first feeding rollers fixedly installed outside the two first rotating rollers; A linkage gear is installed on the end of the first roller that extends through the second support plate, one of which meshes with the drive gear 1302.

[0010] In a preferred embodiment, the present invention can be further configured such that the stacking mechanism further includes two second rotating rollers movably mounted within the first and second support plates, and two second feeding rollers fixedly mounted on the two second rotating rollers.

[0011] In a preferred embodiment, the present invention can be further configured such that: two symmetrically distributed guide pads are fixedly installed inside the first support plate and the second support plate, and the middle of the two guide pads is reserved with a gap adapted to the two second feeding rollers.

[0012] In a preferred embodiment, the present invention can be further configured such that a transmission belt is connected to the pulleys of the first and second rollers extending through the outside of the first support plate.

[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. This utility model uses two symmetrically distributed cotton rollers installed between the first and second ends. As the adhesive fills the cotton rollers, the mica sheet passes through the cotton rollers and is pressed, and the adhesive coats the mica sheet instantly. The groove-making sheet, which is adapted to adhere to the fully adhesive-coated mica sheet, can create grooves in the adhesive layer. As the composite sheet is pressed and comes into contact with the grooved adhesive layer, air bubbles between the composite mica strips are quickly discharged from the grooves, preventing wrinkles and bulging of the composite mica strips.

[0014] 2. This utility model installs a power supply module on the top of the sifting plate and two arc-shaped heat-conducting sheets on the bottom of the power supply module. The two heat-conducting sheets heat the two mica sheets after the adhesive layer is applied, thereby reducing the fluidity of the adhesive layer and preventing the adhesive from overflowing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram illustrating the use of this utility model; Figure 2 This is a three-dimensional schematic diagram of the present invention; Figure 3This is an exploded schematic diagram of the adhesive layer ventilation mechanism of this utility model; Figure 4 This is an exploded view of the stacking mechanism of this utility model.

[0016] Figure label: 100. Adhesive layer ventilation mechanism; 110. First end; 120. Second end; 130. Chassis; 1301. Motor; 1302. Drive gear; 140. Beam; 1401. Groove plate; 150. Distribution plate; 160. Power supply module; 1601. Arc-shaped heat-conducting plate; 170. Adhesive delivery pipe; 1701. Inner tube; 1702. Pressure-reducing outer tube; 1703. Cotton roller; 200. Stacking mechanism; 210. First support plate; 220. Second support plate; 230. Sheet delivery plate; 240. Guide pad; 250. First rotating roller; 2501. First feeding roller; 2502. Linkage gear; 260. Second rotating roller; 2601. Second feeding roller; 270. Drive belt; 300. Mica sheets; 400, composite film. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0018] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0019] The following describes, with reference to the accompanying drawings, some embodiments of a mica tape composite coating device provided by this utility model. Example

[0020] Combination Figures 1 to 4 As shown, the present invention provides a mica tape composite coating device, including an adhesive layer ventilation mechanism 100, two mica sheets 300 passing through the adhesive layer ventilation mechanism 100, a stacking mechanism 200 installed on the adhesive layer ventilation mechanism 100, and two composite sheets 400 passing through the stacking mechanism 200, wherein the two composite sheets 400 are stacked on the two mica sheets 300. The adhesive layer ventilation mechanism 100 is used to enhance the stability of the adhesive coating on the two mica sheets 300, and the stacking mechanism 200 is used to guide the two composite sheets 400 to bond the two mica sheets 300 after adhesive coating.

[0021] The adhesive layer ventilation mechanism 100 includes a first end 110 and a second end 120, two adhesive delivery pipes 170 installed inside the first end 110, an inner tube 1701 fixedly installed inside the inner end of the adhesive delivery pipes 170, and the other end of the inner tube 1701 is inserted into the interior of the second end 120. A pressure-reducing outer tube 1702 is movably installed outside the inner tube 1701, and a cotton roller 1703 is fixedly installed outside the pressure-reducing outer tube 1702. A sparse plate 150 is fixedly installed in the middle of the inner side of the first end 110 and the second end 120, and two mica sheets 300 are adapted to fit and adhere to both sides of the sparse plate 150. Two beams 140 are installed on the inner side of the first end 110 and the second end 120, and the two beams 140 are located outside the two cotton rollers 1703. Multiple groove-making plates 1401 are evenly distributed and fixedly installed on the outside of the beams 140, and the top of the groove-making plates 1401 is adapted to be attached to the mica sheet 300. The top of the distribution plate 150 is equipped with a power supply module 160 and two arc-shaped heat conduction plates 1601 fixedly installed on the power supply module 160, and the arc-shaped heat conduction plates 1601 are in the form of a quarter-circular ring structure. A housing 130 is installed on the first end 110, and a motor 1301 and a drive gear 1302 are fixedly installed inside the housing 130. The stacking mechanism 200 includes a first support plate 210 and a second support plate 220 fixedly installed at both ends of the separating plate 150, two sheet delivery plates 230 fixedly installed on the first support plate 210 and the second support plate 220, and two composite sheets 400 adapted to fit the bottom of the two sheet delivery plates 230.

[0022] The external glue supply pipe is pre-connected to the two glue supply pipes 170. Then, the glue is fed into the inner tube 1701 through the glue supply pipe 170. As the two mica sheets 300 pass through the two cotton rollers 1703 and rotate, the cotton rollers 1703, which are compressed, can squeeze out the glue. Finally, the glue will be evenly coated on the mica sheets 300. After the glue passes through the two arc-shaped heat-conducting plates 1601, the fluidity of the glue on the mica sheets 300 will decrease. The heat radiated to the first feeding roller 2501 will heat-bake the subsequently stacked composite sheet 400 and the mica sheet 300, thereby accelerating the drying speed of the adhesive layer of the mica sheet 300 and the composite sheet 400 after bonding. Preferably, the groove-forming sheet 1401 is an elastic steel sheet, and the top of the groove-forming sheet 1401 is an elliptical arc surface, which is used to create grooves in the adhesive layer coated on the mica sheet 300. During the subsequent extrusion bonding of the composite sheet 400 and the mica sheet 300, the grooves in the adhesive layer can expel air bubbles. Example

[0023] Combination Figure 2 and Figure 4 As shown, based on Embodiment 1, the stacking mechanism 200 further includes two first rotating rollers 250 movably installed inside the first support plate 210 and the second support plate 220, two first feeding rollers 2501 fixedly installed outside the two first rotating rollers 250, two second rotating rollers 260 movably installed inside the first support plate 210 and the second support plate 220, two second feeding rollers 2601 fixedly installed on the two second rotating rollers 260, and two guide pads 240 symmetrically distributed fixedly installed inside the first support plate 210 and the second support plate 220. The middle of the two guide pads 240 is reserved with a gap to fit the two second feeding rollers 2601; A linkage gear 2502 is installed on the end of the first roller 250 that extends through the second support plate 220, and one of the linkage gears 2502 meshes with the drive gear 1302. The first roller 250 and the second roller 260 pass through the pulley outside the first support plate 210 and are connected by a drive belt 270.

[0024] Preferably, the two first feeding rollers 2501 and the two second feeding rollers 2601 have the same structure, and the back of the mica sheet 300 is pressed on the first feeding roller 2501, while the bonded composite sheet 400 is pressed on the second feeding roller 2601. After the bonded mica sheet 300 and the composite sheet 400 pass through the inner ends of the two guide pads 240, they are actively pressed by the stabilizing force and tension of the first feeding roller 2501 and the second feeding roller 2601. The first support plate 210 and the second support plate 220 are both provided with holes in the middle, and the wires on the power supply module 160 can selectively pass through the two holes to avoid the wires interfering with the bonding of the mica tape.

[0025] The working principle and usage process of this utility model are as follows: Two mica sheets 300 are delivered in advance with the separating plate 150 as the center towards the inside of the two cotton rollers 1703 until the two mica sheets 300 pass through the two first feeding rollers 2501 and are actively delivered by them. The multiple groove-making plates 1401 installed on the outside of the beam 140 will adapt and bear pressure on the mica sheets 300 after passing through the cotton rollers 1703. As the linkage gear 2502 actively delivers and stretches the mica sheet 300, the adhesive transferred to the inner tube 1701 via the adhesive delivery pipe 170 will transfer along the grooves on the outer wall of the air-pressure outer tube 1702, and finally be released from the holes on the outer wall of the pressure-pressure outer tube 1702 into the cotton roller 1703. When the mica sheet 300 passes through the inner side of the cotton roller 1703 and is subjected to pressure, the adhesive inside the cotton roller 1703 will coat the mica sheet 300. The evenly distributed groove-forming plates 1401 can form a groove on the adhesive layer coated on the surface of the mica sheet 300. Multiple grooves are created at equal intervals. As the composite sheet 400 moves along the bottom of the transfer plate 230 toward the coating layer of the mica sheet 300, it is transferred to the inner side of the two second transfer rollers 2601 via the guide pad 240, thus achieving composite lamination. When the composite sheet 400 is pressed and adhered to the adhesive layer on the surface of the mica sheet 300, the adhesive is squeezed and the air is quickly expelled outward along the grooves of the adhesive, thereby preventing wrinkles or air bubbles from forming between the composite lamination of the mica sheet 300 and the composite sheet 400.

[0026] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A mica tape composite coating device, comprising an adhesive layer ventilation mechanism (100), characterized in that, It also includes two mica sheets (300) passing through the adhesive layer ventilation mechanism (100), a stacking mechanism (200) mounted on the adhesive layer ventilation mechanism (100), and two composite sheets (400) passing through the stacking mechanism (200), with the two composite sheets (400) stacked on the two mica sheets (300); The adhesive layer ventilation mechanism (100) includes a first end (110) and a second end (120), two adhesive delivery pipes (170) installed inside the first end (110), an inner tube (1701) fixedly installed inside the adhesive delivery pipes (170), and the other end of the inner tube (1701) is inserted into the interior of the second end (120). A pressure-reducing outer tube (1702) is movably installed outside the inner tube (1701), and a cotton roller (1703) is fixedly installed outside the pressure-reducing outer tube (1702). A sparse plate (150) is fixedly installed in the middle of the inner side of the first end (110) and the second end (120), and two mica sheets (300) are adapted to fit and adhere to both sides of the sparse plate (150); Two beams (140) are installed on the inner side of the first end (110) and the second end (120), and the two beams (140) are located outside the two cotton rollers (1703). Multiple evenly distributed groove-forming plates (1401) are fixedly installed on the outside of the beams (140), and the top of the groove-forming plates (1401) is adapted to be attached to the mica sheet (300). The stacking mechanism (200) includes a first support plate (210) and a second support plate (220) fixedly installed at both ends of the separating plate (150), two sheet delivery plates (230) fixedly installed on the first support plate (210) and the second support plate (220), and two composite sheets (400) adapted to fit the bottom of the two sheet delivery plates (230).

2. The mica tape composite coating equipment according to claim 1, characterized in that, The top of the sparse plate (150) is equipped with a power supply module (160) and two arc-shaped heat conduction plates (1601) fixedly installed on the power supply module (160), and the arc-shaped heat conduction plates (1601) are in the form of a quarter-circular ring structure.

3. The mica tape composite coating equipment according to claim 1, characterized in that, A chassis (130) is installed on the first end (110), and a motor (1301) and a drive gear (1302) are fixedly installed inside the chassis (130).

4. The mica tape composite coating equipment according to claim 1, characterized in that, The stacking mechanism (200) further includes two first rotating rollers (250) movably installed inside the first support plate (210) and the second support plate (220) and two first feeding rollers (2501) fixedly installed outside the two first rotating rollers (250); A linkage gear (2502) is installed on the end of the first roller (250) extending to the outside of the second support plate (220), one of which meshes with the drive gear (1302).

5. The mica tape composite coating equipment according to claim 1, characterized in that, The stacking mechanism (200) further includes two second rollers (260) movably mounted in the first support plate (210) and the second support plate (220) and two second feed rollers (2601) fixedly mounted on the two second rollers (260).

6. The mica tape composite coating equipment according to claim 1, characterized in that, Two symmetrically distributed guide pads (240) are fixedly installed inside the first support plate (210) and the second support plate (220), and the middle of the two guide pads (240) is reserved with a gap adapted to the two second feeding rollers (2601).

7. The mica tape composite coating equipment according to claim 4, characterized in that, The first roller (250) and the second roller (260) are connected to a drive belt (270) on a pulley that extends through the outside of the first support plate (210).