Energy-saving fabric double-sided coating machine

By designing a fabric transfer device and a corona-fixing plate turntable structure in the fabric double-sided coating machine, the problem of uneven corona treatment on the fabric surface was solved, achieving uniform corona treatment and coating on both sides of the fabric, and improving the adhesion and treatment quality of the coating.

CN223867032UActive Publication Date: 2026-02-03WUJIANG XINLIDA PLASTIC CO LTD
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Patent Information

Application Number
CN202520253808.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2026-02-03
Estimated Expiration
2035-02-18

AI Technical Summary

Technical Problem

Existing corona treatment devices result in uneven surface treatment of fabrics, especially when long strip coatings are required. Areas that have not been corona treated are prone to uneven treatment, leading to insufficient adhesion.

Method used

Design an energy-saving double-sided fabric coating machine, which adopts two pairs of corona plates and a coating device. The fabric moves in a "V" shaped trajectory between the shell plates through a fabric transfer device. The turntable on the corona plate drives the corona generator to rotate at a uniform speed to corona treat both sides of the fabric. The coating device then coats both sides. The design of the ball bearings and the rotating shaft inside the turntable reduces friction and ensures the uniformity of corona treatment.

Benefits of technology

This achieves uniformity in corona treatment of fabric surfaces, improves coating adhesion, avoids short-circuit risks, and ensures strong coating adhesion.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an energy-saving fabric double-sided coating machine, a cloth conveying device, two corona fixing plates and two coating devices are arranged on the side wall of a shell plate, the cloth conveying device rotates to drive cloth from bottom to top along cloth pulling rods and cloth conveying rollers, the two corona fixing plates are arranged below the side wall of the shell plate, and the two coating devices are arranged on the side wall of the shell plate. The two coating devices are installed between the two shell plates and arranged on the two faces of the cloth respectively, the bottom end of the corona fixing plate is rotationally connected with a plurality of rotating discs, the disc faces of the rotating discs are fixedly connected with a plurality of corona devices, the corona devices rotate at a constant speed when abutting against the cloth through the rotating discs, and the two coating devices abut against the two faces of the cloth respectively. The corona device rotates on the cloth for corona through rotation of the rotating disc, the corona device conducts uniform corona on the cloth, the corona fixing plates are arranged on the two faces of the rotating track of the cloth, corona treatment can be more uniform through the rotatable disc design, and it can be guaranteed that corona treatment energy is evenly distributed on the surface of the cloth through rotation of the disc.
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Description

Technical Field

[0001] This utility model relates to the field of coating, and more specifically, to a coating machine. Background Technology

[0002] With the continuous development and innovation of textile fabric technology, the requirements for the functionality and aesthetics of fabrics are increasing. In the fabric processing process, coating technology, as a key link to improve fabric performance, has been widely used. Some fabrics need to be coated on both sides, but some fabrics have weak surface adhesion and tension. Corona treatment uses high-frequency, high-voltage corona discharge (high-frequency AC voltage up to 5000-15000V / m2) on the surface of the plastic being treated to generate low-temperature plasma, causing free radical reactions on the plastic surface and cross-linking of the polymer. The surface becomes rougher and its wettability to polar solvents increases. These ions penetrate into the surface of the substrate through electrocution and penetration, destroying its molecular structure, thereby oxidizing and polarizing the surface molecules being treated. Ion electrocution erodes the surface, thus increasing the adhesion of the substrate surface.

[0003] Common corona treatment devices are set up with a row of corona nozzles to corona treat the fabric below. However, because the position of the corona nozzles is fixed, the area of ​​the fabric surface that is treated during corona treatment is long and narrow, and the gaps between them are not completely treated. When it is necessary to apply a long strip of coating, the coating may end up in the long strip area that has not been corona treated (or in the area where there is a lot of incomplete treatment), resulting in the adhesion not reaching the best effect.

[0004] Therefore, a new technical solution is needed to address the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an energy-saving fabric double-sided coating machine.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: It includes two opposing shell plates, with a fabric transfer device for moving the fabric, two corona treatment devices for corona treatment of the fabric surfaces, and two coating devices for coating the fabric. The fabric transfer device includes several fabric pulling rods and several fabric transfer rollers, which drive the fabric between the two shell plates in a "..." pattern. The fabric moves from bottom to top along a shaped trajectory. The two corona devices are respectively installed on the shell plate at the horizontal section below the fabric trajectory and the vertical section below the fabric trajectory, and corona treatment is applied to both sides of the fabric. The two coating devices are respectively installed on the shell plate at the middle of the fabric trajectory and below the horizontal section above the fabric trajectory, and coating is applied to both sides of the fabric.

[0007] The corona device includes a corona fixing plate and a corona plate respectively disposed on both sides of the fabric, with the two corona fixing plates facing the two sides of the fabric respectively. Several turntables are rotatably connected to the bottom end of the corona fixing plate, and several corona generators are fixedly connected to the surface of the turntables. The corona generators rotate at a uniform speed when they come into contact with the fabric through the turntables. The two coating devices face the two sides of the fabric respectively and come into contact with it.

[0008] By adopting the above technical solution, this device consists of a shell plate, a fabric transfer device, two corona-fixed plates, and two coating devices. The fabric transfer device moves the fabric by rotating. The fabric transfer device includes several fabric pulling rods and several fabric transfer rollers. The fabric transfer device rotates to make the fabric move from bottom to top along each fabric pulling rod and fabric transfer roller, transporting the fabric from the inlet to the outlet. During the transfer, the fabric first passes through a corona-fixed plate. The corona generator on the corona-fixed plate rotates uniformly on the fabric via a turntable. The rotating turntable drives the corona generator to corona-treat the fabric. After corona treatment on one side, the fabric continues to move to the next corona-fixed plate via the fabric transfer device. The second corona-fixed plate corona-treats the other side of the fabric. The fabric after corona treatment on both sides is then coated, completing the coating on both sides of the fabric. By rotating the turntable, the corona treatment is made more uniform, thereby improving the treatment quality and ensuring that the ink, coating, etc. on the fabric surface adhere more firmly.

[0009] The present invention is further configured such that: an annular groove is formed in the turntable, a plurality of balls are installed in the groove, and a rotating shaft fixedly connected to the corona plate is installed between the plurality of balls, and the rotating shaft is rotatably connected to the balls.

[0010] By adopting the above technical solution, the corona plate rotates through the rotation between the ball bearings in the groove of the turntable and the rotating shaft, and reduces the friction between the turntable and the rotating shaft. This allows the turntable to be powered to rotate with a small amount of electricity.

[0011] The present invention is further configured such that: a corona coil is slidably connected to the top of the corona device, and the corona coil abuts against the corona device.

[0012] By adopting the above technical solution, the power supply installed inside the corona plate provides power to the corona generator. While the corona generator rotates on the turntable, its bottom end comes into contact with the corona ring and is powered by the corona ring, thus corona-treating the fabric.

[0013] The present invention is further configured such that the two corona-fixing plates are located on both sides of the fabric and are staggered.

[0014] By adopting the above technical solution, the corona fixing plate coronas both sides of the fabric. The mirror arrangement can reduce the space required for the device, prevent the corona fixing plates from being set opposite each other, and prevent the fabric from being corona-cor ...

[0015] The present invention is further configured such that: a coating port is provided at the bottom of the coating device, the coating port is located at the lower end of the coating device, and the two coating devices are located on the same vertical line.

[0016] By adopting the above technical solution, the coating device includes a coating port, through which the coating material is applied to the corona-treated fabric.

[0017] The present invention is further configured such that: the fabric pulling rod is located at the upper left and lower right part of the shell, and the fabric transfer roller is installed in a trapezoidal shape at the center of the shell plate.

[0018] By adopting the above technical solution, the fabric is kept straight during the transmission of the fabric on the transfer roller by the pull rod. The transfer roller transmits the fabric upward through a trapezoidal structure. After corona treatment and coating treatment by the corona fixing plate and coating device, the fabric with double-sided coating is completed.

[0019] In summary, this utility model has the following beneficial effects: by rotating the turntable, the corona generator rotates and corona-electrodes the fabric, so that the corona generator corona-electrodes the fabric evenly. The corona fixing plate is set on both sides of the fabric rotation track. The rotatable disc design can make the corona treatment more uniform. By rotating the disc, it can be ensured that the corona treatment energy is evenly distributed on the fabric surface. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal components of this utility model;

[0022] Figure 3 This is a schematic diagram of the corona-fixed plate of this utility model;

[0023] Figure 4 This is a cross-sectional view of a single corona-fixed plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the coating device of this utility model.

[0025] In the figure: 1. Shell plate; 11. Fabric pulling rod; 12. Fabric transfer roller; 2. Corona plate; 21. Corona ring; 22. Corona generator; 23. Turntable; 24. Rotating shaft; 25. Ball bearings; 3. Coating device; 31. Coating port. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0027] An energy-saving fabric double-sided coating machine, such as Figures 1 to 3 As shown, an energy-saving double-sided fabric coating machine includes two opposing shell plates 1. The opposing sidewalls of the two shell plates 1 are equipped with a fabric transfer device for moving the fabric, two corona treatment devices for corona treatment of the fabric surfaces, and two coating devices 3 for coating the fabric. The fabric transfer device includes several fabric pulling rods 11 and several fabric transfer rollers 12. The fabric pulling rods 11 and several fabric transfer rollers drive the fabric between the two shell plates 1 in a “…” pattern. The fabric moves from bottom to top along the shaped trajectory. Two corona devices are installed on the shell plate 1 at the horizontal section below the fabric trajectory and the vertical section below the fabric trajectory, respectively, and corona treatment is applied to both sides of the fabric. Two coating devices 3 are installed on the shell plate 1 at the middle of the fabric trajectory and below the horizontal section above the fabric trajectory, respectively, and coating is applied to both sides of the fabric.

[0028] The corona device includes a corona plate 2 and a corona plate 4 respectively positioned on both sides of the fabric. The two corona plates 2 face the two sides of the fabric respectively. Several turntables 23 are rotatably connected to the bottom of the corona plate 2. Several corona generators 22 are fixedly connected to the surface of the turntables 23. The corona generators 22 rotate at a constant speed when they come into contact with the fabric through the turntables 23. The two coating devices 3 face the two sides of the fabric respectively and come into contact with them.

[0029] like Figure 4 As shown, a groove is provided in the turntable 23, and a number of balls 25 are installed in the groove. A rotating shaft 24, which is fixedly connected to the corona plate 2, is installed between the balls 25. A corona ring 21 is slidably connected to the top of the corona device 22, and the corona ring 21 abuts against the corona device 22.

[0030] like Figure 5 As shown, the coating device 3 includes a coating port 31, which is located at the lower end of the coating device 3.

[0031] This device consists of a shell plate 1, a fabric transfer device, two corona-fixed plates 2, and two coating devices 3. The fabric transfer device moves the fabric by rotating. The device includes several fabric pulling rods 11 and several fabric transfer rollers 12. The fabric transfer device rotates to move the fabric from bottom to top along the fabric pulling rods 11 and fabric transfer rollers 12. The fabric pulling rods 11 ensure the fabric remains straight during the transfer process on the fabric transfer rollers 12. The fabric transfer rollers 12, through a trapezoidal structure, move the fabric upwards. After corona treatment and coating by the corona fixing plate 2 and coating device 3, the fabric with double-sided coating is transported from the inlet to the outlet. During the fabric transfer, the fabric first passes through a corona fixing plate 2. Power is supplied to the corona generator 22 by a power supply installed inside the corona fixing plate 2. While the corona generator 22 rotates on the turntable 23, its bottom end abuts against the corona ring 21, receiving power from the corona ring 21. The corona effect coronases the fabric. The device 22 rotates uniformly on the fabric via the turntable 23. The corona plate 2 rotates through the rotation between the ball bearing 25 in the groove of the turntable 23 and the rotating shaft 24, reducing the friction between the turntable 23 and the rotating shaft 24. A small amount of electricity can be used to provide rotational power to the turntable 23. The rotating turntable 23 drives the corona generator 22 to corona treat the fabric. After one side of the fabric is corona treated, the fabric continues to move to the next corona plate 2 via the fabric transfer device. The second corona plate 2 corona treats the other side of the fabric. The corona plates 2 corona treat both sides of the fabric. The mirror arrangement can reduce the space required by the device. If the corona plates 2 are set opposite each other, the simultaneous corona treatment of both sides of the fabric may cause a short circuit and a fire. After corona treatment on both sides, the fabric is coated separately to complete the coating of both sides of the fabric. The rotation of the turntable 23 makes the corona treatment more uniform, thereby improving the treatment quality and ensuring that the ink, coating, etc. on the surface of the fabric are more firmly adhered.

[0032] The coating device 3 includes a coating port 31 through which the coating material is applied to the corona-treated fabric.

[0033] This device consists of a shell plate 1, a fabric transfer device, two corona-fixed plates 2, and two coating devices 3. The fabric transfer device moves the fabric by rotating. The pull rod 11 ensures the fabric remains straight during transmission on the transfer roller 12. The transfer roller 12, with its trapezoidal structure, transmits the fabric upwards. After corona treatment and coating by the corona-fixed plates 2 and coating devices 3, the fabric is double-coated and transported from the inlet to the outlet. During the transfer, the fabric first passes through a corona-fixed plate 2. The corona generator 22 on the corona-fixed plate 2 rotates uniformly on the fabric via a turntable 23. The turntable 23 rotates through the rotation between the ball bearings 25 in the groove of the turntable 23 and the rotating shaft 24. A small amount of electricity provides rotational power to the turntable 23. The rotation between the ball bearings 25 and the rotating shaft 24 reduces friction, eliminating the negative effects of friction. The power consumption of the turntable 23 is also low. Not much is needed. The corona coil 21 supplies power to the corona generator 22. As the corona generator 22 rotates on the turntable 23, its bottom end abuts against the corona coil 21. Powered by the corona coil 21, the rotating turntable 23 drives the corona generator 22 to corona treat the fabric. After one side is corona treated, the fabric continues to move to the next corona plate 2 via the fabric transfer device. The second corona plate 2 corona treats the other side of the fabric. The corona plates 2 corona treat both sides of the fabric. The mirror arrangement can reduce the space required by the device. The corona plates 2 cannot be set opposite each other. Simultaneous corona treatment of both sides of the fabric may cause a short circuit and fire. The fabric after both sides are corona treated is then coated. The coating device 3 includes a coating port 31. The coating agent is applied to the corona-treated fabric through the coating port 31 at the lower end of the coating device 3, thus completing the coating of both sides of the fabric.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An energy-saving double-sided fabric coating machine, comprising two opposing shell plates (1), wherein a fabric transfer device for moving fabric, two corona treatment devices for corona treatment of fabric surfaces, and two coating devices (3) for coating fabric surfaces are installed on the opposing side walls of the two shell plates (1), wherein the fabric transfer device comprises a plurality of fabric pulling rods (11) and a plurality of fabric transfer rollers (12), the plurality of fabric pulling rods (11) and the plurality of fabric transfer rollers driving the fabric between the two shell plates (1) in a " The trajectory moves from bottom to top, characterized by: The two corona devices are respectively installed on the shell plate (1) at the horizontal section below the fabric track and the vertical section below the fabric track, and respectively perform corona treatment on both sides of the fabric. The two coating devices (3) are respectively installed on the shell plate (1) at the middle of the fabric track and below the upper horizontal section, and respectively apply coating to both sides of the fabric. The corona device includes a corona plate (2) and a corona plate (4) respectively set on both sides of the fabric. The two corona plates (2) are respectively facing the two sides of the fabric. The bottom end of the corona plate (2) is rotatably connected to a number of turntables (23). The surface of the turntables (23) is fixedly connected to a number of corona generators (22). The corona generators (22) rotate at a constant speed when they come into contact with the fabric through the turntables (23). The two coating devices (3) are respectively facing the two sides of the fabric and come into contact with them.

2. The energy-saving double-sided fabric coating machine according to claim 1, characterized in that: The turntable (23) has an annular groove, and a number of balls (25) are installed in the groove. A rotating shaft (24) fixedly connected to the corona plate (2) is installed between the balls (25). The rotating shaft (24) and the balls (25) are rotatably connected.

3. The energy-saving double-sided fabric coating machine according to claim 1, characterized in that: The top of the corona device (22) is slidably connected to a corona ring (21), and the corona ring (21) abuts against the corona device (22).

4. The energy-saving double-sided fabric coating machine according to claim 1, characterized in that: The two corona plates (2) are located on both sides of the fabric and are staggered.

5. The energy-saving double-sided fabric coating machine according to claim 1, characterized in that: The coating device (3) has a coating port (31) at the bottom, and the coating port (31) is located at the lower end of the coating device (3). The two coating devices (3) are located on the same vertical line.

6. The energy-saving double-sided fabric coating machine according to claim 1, characterized in that: The fabric pulling rod (11) is located at the upper left and lower right of the shell plate (1), and the fabric transfer roller (12) is installed in a trapezoidal shape at the center of the shell plate (1).