Ceramic tile antibacterial coating coating device and ceramic tile processing line

Abstract

The utility model discloses a ceramic tile antibacterial coating coating device and a ceramic tile processing line. The coating device for the antibacterial coating of the ceramic tile comprises an antibacterial liquid container, a coating mechanism and a liquid conveying pipe, the antibacterial liquid container is used for containing an antibacterial stock solution; the pair of coating mechanisms are distributed up and down, and a coating station is formed by the height difference between the two coating mechanisms; the light shield is provided with a sealing groove; a sponge layer is arranged on the outer surface of the sponge rod; the sponge rod is rotatably mounted in the sealing groove; the local outer surface of the sponge rod extends out of the sealing groove, so that part of the sponge layer is arranged at a coating station; the input end of the infusion tube is communicated with the antibacterial liquid container, and the output end of the infusion tube is close to the sponge rod and used for outputting antibacterial stock solution to the sponge layer. According to the scheme, the antibacterial stock solution can be evenly applied to the surface of the ceramic tile when the ceramic tile passes through the sponge rod, the uniformity of the antibacterial coating of the ceramic tile is achieved, and the problem that the decorative effect of the surface of the ceramic tile is affected due to the fact that the ceramic tile is prone to oxidation when the antibacterial coating is applied is solved.

Description

Technical Field

[0001] This utility model relates to the field of ceramic tile processing, and in particular to a ceramic tile antibacterial coating device and a ceramic tile processing line. Background Technology

[0002] In current tile manufacturing processes, an antibacterial coating is applied to the tile surface. This is primarily done by applying an antibacterial liquid to the tile surface after it leaves the kiln, providing a long-lasting antibacterial effect. However, this antibacterial liquid is inevitably exposed to light during application. The antibacterial liquid contains components that are easily oxidized under light, such as silver antibacterial agents. Silver ions have a strong photosensitive reaction and will directly oxidize and change color upon exposure to light. Therefore, when the antibacterial liquid is applied to the tile surface, a colored coating is formed, obscuring the original tile pattern and affecting both the decorative effect and the antibacterial properties of the tile surface, thus reducing the effectiveness of the antibacterial coating. Utility Model Content

[0003] The purpose of this invention is to provide a ceramic tile antibacterial coating application device, which uses an antibacterial liquid container to hold the antibacterial liquid, and outputs the antibacterial liquid to the sponge layer through an infusion tube. The sponge rod fully absorbs the antibacterial liquid through the sponge layer on its surface, and can evenly apply the antibacterial liquid to the surface of the ceramic tile as it passes over the sponge rod, thus achieving uniformity of the antibacterial coating on the ceramic tile.

[0004] This utility model also proposes a ceramic tile processing line, which is equipped with the above-mentioned ceramic tile antibacterial coating device.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A ceramic tile antibacterial coating application device includes: an antibacterial liquid container, a coating mechanism, and an infusion tube;

[0007] The antibacterial liquid container is used to hold the antibacterial stock solution;

[0008] The coating mechanism includes: a light shield and a sponge rod;

[0009] The light shield is provided with a sealing groove; the outer surface of the sponge rod is provided with a sponge layer; the sponge rod is rotatably installed in the sealing groove; a portion of the outer surface of the sponge rod extends out of the sealing groove, so that part of the sponge layer is placed outside the sealing groove;

[0010] The infusion tube's input end is connected to the antibacterial solution container, and the infusion tube's output end is close to the sponge rod, used to output the antibacterial stock solution to the sponge layer.

[0011] Optimally, it also includes: a lifting drive; a pair of coating mechanisms arranged vertically, the height difference between them forming a coating station; and a portion of the sponge layer exposed at the coating station;

[0012] The output end of the lifting driver is connected to the sponge rod, and is used to drive the sponge rod to move up and down.

[0013] Optimally, the lifting drive includes: a nut seat and a rotating lead screw;

[0014] Each of the nut seats is connected to one of the coating mechanisms;

[0015] The rotating lead screw is provided with a left-hand external thread structure and a right-hand external thread structure;

[0016] One of the nut seats has an internal thread structure that is threaded into the left-hand external thread structure, and the other nut seat has an internal thread structure that is threaded into the right-hand external thread structure. The rotation of the rotating screw causes the upper and lower coating mechanisms to move closer to each other or further away from each other.

[0017] Alternatively, the sponge layer can be a PVA sponge layer.

[0018] Alternatively, the light shield may be provided with an observation window that exposes the sealing groove.

[0019] Alternatively, the antibacterial liquid container is located above the coating mechanism, the input end of the infusion tube is connected to the antibacterial liquid container, and the output end of the infusion tube is close to the sponge rod.

[0020] Alternatively, the infusion tubing can be a disposable infusion set, which includes an infusion tubing and a flow rate regulator, the flow rate regulator being installed on the infusion tubing.

[0021] Optimally, the number of infusion tubing is multiple; the output end of the infusion tubing is installed in the sealing groove and arranged along the length direction of the sponge rod.

[0022] Optimally, it may also include: a liquid recovery device;

[0023] The input end of the liquid recovery device is located below the coating mechanism and is used to receive the antibacterial stock solution output by the coating mechanism.

[0024] A ceramic tile processing line is provided with the aforementioned ceramic tile antibacterial coating device in the antibacterial coating area at the end of the kiln.

[0025] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0026] This solution provides a ceramic tile antibacterial coating application device, which uses an antibacterial liquid container to hold the antibacterial stock solution and outputs the antibacterial stock solution to the sponge layer through an infusion tube. The sponge rod fully absorbs the antibacterial stock solution through the sponge layer on its surface, and can evenly apply the antibacterial stock solution to the surface of the ceramic tile as it passes over the sponge rod, thus achieving the uniformity of the antibacterial coating on the ceramic tile and solving the problem that the ceramic tile is prone to oxidation when the antibacterial coating is applied, which affects the decorative effect of the ceramic tile surface. Attached Figure Description

[0027] Figure 1 This is a cross-sectional structural schematic diagram of one embodiment of a ceramic tile antibacterial coating application device with a coating mechanism only on the upper side;

[0028] Figure 2 This is a schematic diagram of one embodiment of the tile antibacterial coating device;

[0029] Figure 3 yes Figure 2 Enlarged view of section A in the middle;

[0030] Figure 4 This is a cross-sectional structural schematic diagram of one embodiment of a ceramic tile antibacterial coating coating device with coating mechanisms set on the upper and lower sides;

[0031] Figure 5 This is a structural schematic diagram of one embodiment of a tile processing line.

[0032] in:

[0033] 1. Antibacterial liquid container; 2. Coating mechanism; 3. Infusion pipe; 4. Lifting drive; 5. Kiln; 6. Liquid recovery device; 10. Tile; 11. Antibacterial coating area;

[0034] Coating station 20; light shield 21; sponge rod 22; sealing groove 211; observation window 212; sponge layer 221;

[0035] Infusion tubing 31, flow rate regulator 32;

[0036] Nut seat 41, rotating screw 42; left-hand external thread structure 421, right-hand external thread structure 422. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "inner side," "outer side," "inner end," "outer end," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0039] like Figure 1-5 A ceramic tile antibacterial coating application device includes: an antibacterial liquid container 1, a coating mechanism 2, and an infusion pipe 3;

[0040] The antibacterial liquid container 1 is used to hold the antibacterial stock solution;

[0041] The coating mechanism 2 includes: a light shield 21 and a sponge rod 22;

[0042] The light shield 21 is provided with a sealing groove 211; the outer surface of the sponge rod 22 is provided with a sponge layer 221; the sponge rod 22 is rotatably installed in the sealing groove 211; a portion of the outer surface of the sponge rod 22 extends out of the sealing groove 211, so that a portion of the sponge layer 221 is placed outside the sealing groove 211;

[0043] The infusion tube 3 has its input end connected to the antibacterial liquid container 1, and its output end is close to the sponge rod 22, for outputting the antibacterial stock solution to the sponge layer 221.

[0044] This solution provides a ceramic tile antibacterial coating application device, which uses an antibacterial liquid container 1 to hold antibacterial stock solution, and outputs the antibacterial stock solution to a sponge layer 221 through an infusion pipe 3. The sponge rod 22 fully absorbs the antibacterial stock solution through the sponge layer 221 on its surface, so that the antibacterial stock solution can be evenly applied to the surface of the ceramic tile 10 when it passes over the sponge rod 22, thereby achieving the uniformity of the antibacterial coating on the ceramic tile and solving the problem that the ceramic tile 10 is prone to oxidation when the antibacterial coating is applied, which affects the decorative effect of the surface of the ceramic tile 10.

[0045] Specifically, the antibacterial liquid container 1 contains the antibacterial concentrate, the formula of which is a commonly used formula in the ceramic tile industry. The antibacterial components of the concentrate are easily oxidized under light and form impurities, affecting the decorative effect of the tile surface. The antibacterial concentrate in the container 1 is transferred to the sponge rod 22 through the infusion tube 3. The light shield 21 is provided with a sealing groove 211 to isolate the outside. The sponge rod 22 is rotatably installed in the sealing groove 211, and the sponge layer 221 of the sponge rod 22 is only exposed in a local area of ​​the sealing groove 211. The infusion tube 3 can pass through the sealing groove 211 and can add the antibacterial concentrate to the sponge layer 221 within the sealing groove 211. In this process, some of the antibacterial stock solution is stored in the pores of the sponge layer 221 in the form of droplets. The sponge layer 221 has a high water absorption rate and can absorb a large amount of antibacterial stock solution. After the antibacterial stock solution is added to the sponge layer 221, the light-shielding effect of the sealing groove 211 can prevent the oxidation of the unapplied antibacterial stock solution. Furthermore, the antibacterial stock solution is also absorbed into the internal pores of the sponge layer 221. Therefore, the sponge layer 221 located in the sealing groove 211 and the partial sponge layer 221 extending out of the sealing groove 211 have a certain light-shielding effect on the antibacterial stock solution. The antibacterial stock solution is treated with light-shielding before being output, thus effectively preventing the antibacterial stock solution from oxidizing under light.

[0046] In this design, the coating mechanism 2 can be installed only on the upper or lower side of the tile 10, such as... Figure 1 In this design, the coating mechanism 2 is positioned above the tile 10, with its lower side supported by a conventional wheel or roller structure. The arrow indicates the direction of movement of the tile 10. When the tile 10 passes horizontally below the coating mechanism 2, the portion of the sponge rod 22 extending from the sealing groove 211 contacts the tile 10, effectively triggering the application of the antibacterial solution during the horizontal movement of the tile 10. The sponge rod 22 of the upper coating mechanism 2 contacts the upper surface of the tile 10. Thus, when the tile 10 passes the sponge rod 22, the upper surface of the tile 10 is coated with the antibacterial solution. When the sponge rod 22 contacts the tile 10, the tile 10 and the sponge layer 221 come into contact, compressing the sponge layer 221. This is equivalent to a draining process for the sponge layer 221, which drains the antibacterial solution from the gaps when the sponge layer 221 is compressed, thereby applying the antibacterial solution to the contacted area on the surface of the tile 10. The tile 10 only needs to pass horizontally over the sponge rod 22 to achieve complete application on both the upper and lower surfaces.

[0047] Meanwhile, this solution uses a sponge rod 22 primarily because the surface of the tile 10 may have a rough, pitted appearance. If a non-rotating roller is used to apply the antibacterial solution, it is easy to scratch the rod itself, potentially causing the rod to shed debris and contaminate the tile surface. It may also cause dragging, resulting in the freshly applied coating being scratched before it can harden, thus affecting the integrity of the antibacterial coating. In this solution, the sponge rod 22 can rotate relative to the surface of the tile 10. The sponge layer 221 itself has a cushioning effect, preventing scratches and debris from the rod. Furthermore, the cushioning effect of the sponge layer 221 ensures a uniform coating and optimal integrity of the antibacterial coating.

[0048] Optimally, it also includes: a lifting drive 4; a pair of coating mechanisms 2 arranged vertically, the height difference between them forming a coating station 20; and a portion of the sponge layer 221 exposed at the coating station 20.

[0049] The output end of the lifting driver 4 is connected to the sponge rod 22 and is used to drive the sponge rod 22 to move up and down.

[0050] In this design, the coating mechanisms 2 are arranged vertically, with one coating mechanism 2 positioned above and the other below, forming a coating station 20 between adjacent mechanisms 2. Specifically, when the tile 10 passes horizontally through the coating station 20 between the two mechanisms 2, the portion of the sponge rod 22 extending from the coating station 20 contacts the tile 10. This horizontal movement of the tile 10 triggers the application of the antibacterial solution. The sponge rod 22 of the upper coating mechanism 2 contacts the upper surface of the tile 10, while the sponge rod 22 of the lower coating mechanism 2... When the sponge rod 22 contacts the lower surface of the tile 10, the antibacterial liquid can be applied to both the upper and lower surfaces of the tile 10 as it passes through the coating station 20. When the sponge rod 22 contacts the tile 10, the tile 10 and the sponge layer 221 come into contact to squeeze the sponge layer 221, which is equivalent to a draining process of the sponge layer 221. When the sponge layer 221 is squeezed, the antibacterial liquid in the gaps will be drained out, thereby applying the antibacterial liquid to the contacted area on the surface of the tile 10. The tile 10 only needs to pass horizontally through the coating station 20 to achieve complete application on both the upper and lower surfaces.

[0051] In addition, this solution uses the sponge layer 221 of the sponge rod 22 to apply antibacterial liquid to the upper and lower surfaces of the tile 10. The sponge layer 221 creates a height difference between the contact area and the non-contact area of ​​the tile. The compression of the sponge layer 221 by the left and right edges of the tile 10 can output the antibacterial liquid to the non-contact areas on both sides. The non-contact areas are close to the left and right edges of the tile 10, so that the squeezed antibacterial liquid can be applied to the left and right edges of the tile 10, thereby achieving the effect of applying antibacterial liquid to the left and right edges of the tile 10.

[0052] The lifting actuator 4 can be any known mechanism with lifting capabilities, such as a combination of a cylinder, motor, and lead screw; a combination of gears and chains; a combination of a timing belt and pulleys; or a robotic arm, as long as it directly or indirectly drives the sponge rod 22 to rise and fall. The lifting actuator 4 can be indirectly connected to the sponge rod 22 to rise and fall together with the light shield 21; or it can be directly connected to the sponge rod 22, driving it to rise and fall only within the light shield 21. When the sponge rod 22 can rise and fall, the lifting distance between the upper and lower sponge rods 22 can be controlled, thus controlling the height of the coating station 20 and consequently the degree of compression between the sponge layer 221 and the tile 10. When the upper and lower sponge rods 22 move close together, the degree of compression between the sponge layer 221 and the tile 10 is greater, allowing more antibacterial liquid to be squeezed out.

[0053] Optimally, the lifting drive 4 includes: a nut seat 41 and a rotating lead screw 42;

[0054] Each of the nut seats 41 is connected to one of the coating mechanisms 2;

[0055] The rotating lead screw 42 is provided with a left-hand external thread structure 421 and a right-hand external thread structure 422;

[0056] One of the nut seats 41 has an internal thread that is threaded into the left-hand external thread structure 421, and the other nut seat 41 has an internal thread that is threaded into the right-hand external thread structure 422. The rotation of the rotating screw 42 causes the two coating mechanisms 2 to move closer to each other or further away from each other.

[0057] This solution uses any known lifting mechanism as the lifting actuator 4. Preferably, a left-handed external thread structure 421 and a right-handed external thread structure 422 are respectively provided at the upper and lower ends of the rotating screw 42. The left-handed and right-handed external thread structures 421 rotate in opposite directions. Therefore, when the rotating screw 42 rotates in one direction, the two nut seats 41 drive the coating mechanism 2 to move towards each other (or away from each other). When the rotating screw 42 rotates in the other direction, the two nut seats 41 drive the coating mechanism 2 to move away from each other (or towards each other). In this way, the sponge rod 22 can achieve synchronous movement of the coating mechanism 2 to a specific height by simply driving the rotating screw 42. Simultaneously, since the sponge rods 22 of different coating mechanisms 2 can be driven to lift and lower synchronously, the distance between the upper and lower sponge layers 221 and the surface of the tile 10 is controllable. Therefore, the amount of antibacterial liquid squeezed from the sponge remains consistent, ensuring uniform coating.

[0058] The rotation of the lead screw 42 can be driven manually or by a motor. The nut seat 41 of the lifting driver 4 can be connected to only one side of the coating mechanism 2, and a guide seat can be provided on the other side of the coating mechanism 2. The guide seat cooperates with the guide rod parallel to the lead screw 42, and the connection between the guide seat and the guide rod provides guidance for the lead screw 42.

[0059] Alternatively, the sponge layer 221 can be a PVA sponge layer.

[0060] The PVA sponge layer is mainly made of PVA material, which has extremely high water absorption, capable of absorbing liquids more than seven times its own weight, allowing for full absorption of antibacterial solutions. Simultaneously, the PVA sponge layer also has extremely high hydrophilicity and a high water absorption rate. After absorbing water, it does not shed fibers during use, making it superior to ordinary sponge rods. It possesses high durability and wear resistance, making it suitable for use in working environments of 50-90℃. This temperature perfectly matches the application temperature of the antibacterial solution at the end of the kiln 5 in the tile processing line. Furthermore, its wear resistance is well-suited to the scenario where the sponge rod 22 contacts the surface of the tile 10 under rotation, thus extending its service life.

[0061] Alternatively, the light shield 21 may be provided with an observation window 212 that exposes the sealing groove 211.

[0062] The observation window 212 exposes the sealing groove 211, allowing for easy observation of the interior from outside the light shield 21. This enables the observer to monitor the absorption and compression status of the antibacterial solution in the sponge layer 221, as well as the output of the antibacterial solution from the infusion tube 3 to the sponge layer 221. This allows for real-time adjustment of the output volume of the infusion tube 3 and the lifting height of the lifting actuator 4 as needed. The observation window 212 can be simply a perforated window; alternatively, it can be an adjustable window structure. The observation window 212 may also include a light-blocking layer to maintain the light-blocking effect of the light shield 21 when the window structure is closed.

[0063] Alternatively, the antibacterial liquid container 1 is located above the coating mechanism 2, the input end of the infusion tube 3 is connected to the antibacterial liquid container 1, and the output end of the infusion tube 3 is close to the sponge rod 22.

[0064] The antibacterial liquid container 1 is located above the coating mechanism 2. A height difference is formed between the input end and the output end of the infusion tube 3. The infusion tube 3 automatically outputs the antibacterial stock solution to the sponge layer 221 through hydraulic pressure, thereby eliminating the need for a pump body during the transfer of the antibacterial stock solution and simplifying the structure.

[0065] Alternatively, the infusion tubing 3 can be a disposable infusion set, which includes an infusion tubing 31 and a flow rate regulator 32, wherein the flow rate regulator 32 is installed on the infusion tubing 31.

[0066] Disposable infusion sets are common medical consumables. After sterilization, they establish a channel between the vein and the medication for intravenous infusion. They typically consist of eight components: an infusion tubing 31, a flow regulator 32, an intravenous needle or injection needle, a needle cap, a medication filter, a drip chamber, a stopper puncture device, and an air filter. Some infusion sets also include an injection port and a medication dispensing port. This design utilizes some components of the disposable infusion set as the infusion tubing 3, primarily the infusion tubing 31 and the flow regulator 32. Other components can be added or omitted as needed. The infusion tubing 31 is sterilized and will not affect the delivery of the antibacterial solution, effectively preventing contamination of the antibacterial solution by residual substances in the tubing 31 and maintaining the stability of the antibacterial solution. Simultaneously, the flow regulator 32 regulates the flow rate of the antibacterial solution in the infusion tubing 31, allowing adjustment of the flow rate based on the observation window 212. Furthermore, the infusion tubing 31 is a flexible tubing that can be adjusted to meet the needs of raising and lowering the light shield 21 and the sponge rod 22.

[0067] The number of infusion tubing 31 is multiple; the output end of the infusion tubing 31 is installed in the sealing groove 211 and arranged along the length direction of the sponge rod 22.

[0068] This solution uses multiple infusion tubes 3 to deliver antibacterial solution to the sponge layer 221. The output ends of the infusion tubes 3 are arranged along the length of the sponge rod 22, allowing the antibacterial solution to be delivered to multiple areas of the sponge rod 22, thereby improving the absorption efficiency of the sponge layer 221 and enabling timely replenishment of the antibacterial solution. Furthermore, the infusion tubes 3 are made of soft material, and in particular, flexible tubing can be positioned on the left and right sides of the light shield 21, ensuring that the horizontal movement of the tiles is not affected during the delivery of the antibacterial solution.

[0069] Optimally, it also includes: a liquid recovery device 6;

[0070] The input end of the liquid recovery device 6 is located below the coating mechanism 2 and is used to receive the antibacterial stock solution output by the coating mechanism 2.

[0071] The liquid recovery device 6 is used to recover excess antibacterial liquid applied from the coating mechanism 2 so that it can be reused in the future, thus avoiding waste by spilling the antibacterial liquid directly onto the ground and preventing environmental pollution.

[0072] A ceramic tile processing line is provided with an antibacterial coating device for ceramic tiles in the antibacterial coating zone 11 at the end of the kiln 5, wherein the temperature of the antibacterial coating zone 11 is 50-90℃.

[0073] A process for applying an antibacterial coating to ceramic tiles, using the aforementioned antibacterial coating device, is characterized by comprising the following steps:

[0074] (1) Adjust the height of the sponge rod 22 in advance so that the sponge layer 221 contacts the surface of the tile 10 to be coated;

[0075] (2) The infusion tube 3 guides the antibacterial stock solution of the antibacterial liquid container 1 to the sponge layer 221 of the sponge rod 22, and the sponge layer 221 absorbs the antibacterial stock solution.

[0076] (3) The tile 10 is conveyed to the sponge rod 22. The sponge rod 22 rotates relative to the surface of the tile 10. Under pressure, the sponge rod 22 squeezes the antibacterial liquid of the sponge layer 221 onto the surface of the tile 10, so that the antibacterial liquid is applied to the outer surface of the tile 10.

[0077] 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 ceramic tile antibacterial coating application device, characterized in that, include: Antibacterial solution containers, coating mechanisms, and infusion tubing; The antibacterial liquid container is used to hold the antibacterial stock solution; The coating mechanism includes: a light shield and a sponge rod; The light shield is provided with a sealing groove; the outer surface of the sponge rod is provided with a sponge layer; the sponge rod is rotatably installed in the sealing groove; a portion of the outer surface of the sponge rod extends out of the sealing groove, so that part of the sponge layer is placed outside the sealing groove; The infusion tube's input end is connected to the antibacterial solution container, and the infusion tube's output end is close to the sponge rod, used to output the antibacterial stock solution to the sponge layer.

2. The ceramic tile antibacterial coating application device according to claim 1, characterized in that, Also includes: Lift drive; A pair of coating mechanisms are arranged vertically, with the height difference between them forming a coating station; part of the sponge layer is exposed at the coating station; The output end of the lifting driver is connected to the sponge rod, and is used to drive the sponge rod to move up and down.

3. The ceramic tile antibacterial coating application device according to claim 2, characterized in that, The lifting drive includes: a nut seat and a rotating lead screw; Each of the nut seats is connected to one of the coating mechanisms; The rotating lead screw is provided with a left-hand external thread structure and a right-hand external thread structure; One of the nut seats has an internal thread structure that is threaded into the left-hand external thread structure, and the other nut seat has an internal thread structure that is threaded into the right-hand external thread structure. The rotation of the rotating screw causes the upper and lower coating mechanisms to move closer to each other or further away from each other.

4. The ceramic tile antibacterial coating application device according to claim 1, characterized in that, The sponge layer is a PVA sponge layer.

5. The ceramic tile antibacterial coating application device according to claim 1, characterized in that, The light shield is provided with an observation window that exposes the sealing groove.

6. The ceramic tile antibacterial coating application device according to claim 1, characterized in that, The antibacterial liquid container is located above the coating mechanism, the input end of the infusion tube is connected to the antibacterial liquid container, and the output end of the infusion tube is close to the sponge rod.

7. The ceramic tile antibacterial coating application device according to claim 6, characterized in that, The infusion tubing is a disposable infusion set, which includes an infusion tubing and a flow rate regulator, wherein the flow rate regulator is installed on the infusion tubing.

8. The ceramic tile antibacterial coating application device according to claim 7, characterized in that, The number of infusion tubing is multiple; the output end of the infusion tubing is installed in the sealing groove and arranged along the length direction of the sponge rod.

9. A ceramic tile antibacterial coating application device according to any one of claims 1-8, characterized in that, Also includes: Liquid recovery device; The input end of the liquid recovery device is located below the coating mechanism and is used to receive the antibacterial stock solution output by the coating mechanism.

10. A ceramic tile processing line, characterized in that, An antibacterial coating device for ceramic tiles, as described in any one of claims 1-9, is provided in the antibacterial coating area at the end of the kiln.

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