Production process of antibacterial mildew-proof wall cloth and wall cloth surface coating system

Abstract

The application discloses an antibacterial and mildew-proof wall cloth production process and a wall cloth surface coating system, and technical scheme points are as follows: the coating net roller is annular and hollow, has a plurality of mesh holes on the outer periphery, and is used for storing foaming slurry to be coated; the scraping member is arranged in the coating net roller and is used for abutting against the upper inner wall of the coating net roller; the two ends of the coating net roller are rotatably supported through the rotary seat and can realize axial rotation; in the axial rotation process of the coating net roller, the foaming slurry winding around the upper side of the coating net roller is extruded outward through the abutting pressure of the scraping member and the coating net roller, and the cloth winding around the upper side of the coating net roller is coated. The application processes the cloth surface through the coating mode, adopts the foaming slurry, and enables the antibacterial and mildew-proof additives to form a protective layer on the surface, so that the overall coating effect can be improved, and the antibacterial and mildew-proof effect of the wall cloth is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wall cloth, more particularly, it relates to a surface coating system of antibacterial and mildew-proof wall cloth, and relates to a production process of antibacterial and mildew-proof wall cloth. BACKGROUND

[0002] Wall cloth is an important part of current indoor decoration, and takes cloth as a base material, which can replace the original wall paint and wall cloth and other wall decoration materials. In addition, due to the cloth as a base material, the wall cloth has a more rough and three-dimensional surface effect, and can form a surface morphology with more decorative effect through embroidery, printing and jacquard, and thus has a larger market.

[0003] Most of the researches on wall cloth are focused on the decorative effect of wall cloth, and the surface pattern is often designed as the focus, so that the wall cloth has more and more personalized surface patterns. The functional effect of wall cloth is relatively less. The biggest problem of wall cloth in use is antibacterial and mildew-proof. Since the humidity of the wall surface may be large, it may be affected by splashing water, and mildew is easy to occur on the wall cloth, which causes mold stains and affects the service life of the wall cloth.

[0004] At present, the antibacterial and mildew-proof wall cloth on the market is often produced by soaking the base cloth of the wall cloth in the production process, so that the antibacterial and mildew-proof agent can enter the bottom of the wall cloth and play a certain antibacterial and mildew-proof effect. By soaking, the cloth is soaked in the reagent formed by the agent, and the lint and other impurities on the surface of the cloth will enter the reagent and pollute the reagent to a certain extent. The soaking effect will decrease in the later stage, and the uniformity of the antibacterial and mildew-proof effect will be affected.

[0005] Therefore, a new scheme needs to be proposed to solve this problem. SUMMARY

[0006] The present application aims to solve the above problems and provides a surface coating system of antibacterial and mildew-proof wall cloth. The cloth surface is processed by coating, and the foamed slurry is used to form a protective layer of antibacterial and mildew-proof agent on the surface, which can improve the overall effect of coating and improve the antibacterial and mildew-proof effect of wall cloth.

[0007] The technical problem of the present application is solved by the following technical scheme: a surface coating system of an antibacterial mildew-proof wall cloth, comprising a coating mesh roller and a scraping member arranged in the coating mesh roller, the coating mesh roller is annular and hollow, has a plurality of mesh holes on the outer periphery, and is used for storing foaming slurry to be coated; the scraping member is arranged in the coating mesh roller and is used for abutting against the upper inner wall of the coating mesh roller; the two ends of the coating mesh roller are rotatably supported by rotating seats and can realize axial rotation; during the axial rotation of the coating mesh roller, the foaming slurry around the upper side of the coating mesh roller is extruded outward by the abutting pressure of the scraping member, and the cloth around the upper side of the coating mesh roller is coated.

[0008] The present application further provides a conveying belt, which is arranged on the upper side of the coating mesh roller and is in close contact with the upper side of the coating mesh roller, the lower side of the conveying belt is used for adhering to the cloth to be coated, and the cloth is driven by the conveying belt to pass through the upper side of the coating mesh roller.

[0009] The present application further provides that the two ends of the coating mesh roller are open, one end is provided with a feeding pipe, and the lower side of the other end is provided with a discharging hopper; the inner side wall of the lower side of the coating mesh roller is arranged obliquely towards the side of the discharging hopper, and the discharging hopper is used for receiving the slurry flowing from the lower side of the coating mesh roller.

[0010] The present application further provides that the coating mesh roller has a conical cylindrical structure, one end is a small-diameter end, and the other end is a large-diameter end; the axis of the coating mesh roller is arranged obliquely, and the upper side of the coating mesh roller is arranged horizontally, and the lower side is arranged obliquely towards one side.

[0011] The present application further provides that the coating mesh roller is provided with a receiving groove at the middle position of the inner side, the top of the receiving groove is provided with an open notch, the notch corresponds to the upper side of the coating mesh roller, and is used for receiving the slurry dripping from the scraping of the scraping member.

[0012] The present application further provides that the scraping member is a scraper, the lower side of the scraper is installed in the receiving groove through a mounting seat, the upper end of the scraper extends out of the notch and abuts against the inner side wall of the upper side of the coating mesh roller, and is used for extruding the slurry in the inner side of the coating mesh roller to the cloth for coating.

[0013] The present application further provides that the receiving groove is arranged along the length direction of the coating roller, the inside of the receiving groove is provided with an inner groove with an open top, the inner groove can receive the slurry dripping from above; the inner groove is arranged obliquely towards one side, the slurry in the inner groove drips downward from the opening at the end of the inner groove to the bottom of the receiving groove; the inner bottom of the receiving groove is provided with an inclined surface, the inclined surface is opposite to the inclined direction of the inner side, a plurality of through holes are arranged at the bottom of the inclined surface, and each through hole is used for slurry flowing.

[0014] The application is further provided with a scraping roller, both ends of the scraping roller are rotatably supported by bearing seats and can rotate axially, and the rotating direction is opposite to that of the coating wire roller; the upper side edge of the scraping roller abuts against the inner side of the upper side position of the coating wire roller.

[0015] The application is further provided with an arc-shaped inner groove, the lower side of the scraping roller extends into the arc-shaped groove; the scraping roller comprises a roller body, a material cavity for storing slurry is arranged in the roller body, the middle section of the roller body is a material permeation section, a plurality of material permeation holes are arranged on the outer periphery of the material permeation section for slurry to permeate out; a feeding pipe is arranged through the roller body, a feeding hole is arranged on the feeding pipe at a position extending into the middle of the material cavity, and slurry connected externally can be injected into the material cavity through the feeding pipe;

[0016] The application is further provided with two groups of stoppers arranged in the roller body, the spacing between the stoppers is adjustable, and the material cavity is formed between the two groups of stoppers; the stopper comprises a ring sleeve, the ring sleeve is sleeved on the outer periphery of the feeding pipe and achieves sliding sealing through a sealing ring one; a fixed stop ring is fixedly connected to the outer periphery of one end of the ring sleeve opposite to the other group of stoppers, the outer periphery of the fixed stop ring achieves sliding sealing with the inner circumferential wall of the roller body through a sealing ring two; a stop block is fixedly connected to the outer periphery of the other end of the ring sleeve away from the other group of stoppers, a movable stop ring is sleeved on the outer periphery of the ring sleeve, and the movable stop ring slides and is adjustable between the fixed stop ring and the stop block; a spring is elastically abutted between the fixed stop ring and the movable stop ring;

[0017] The application is further provided with a plurality of circumferentially distributed notches arranged on the outer periphery of the movable stop ring, a linkage block is rotatably connected to the notches through a linkage shaft, one end of the linkage block extends towards the stop block to form an abutting part for abutting against the inner circumferential wall of the roller body, and the other end of the linkage block extends towards the fixed stop block to form a linkage part; a torsional spring is sleeved on the outer periphery of the linkage shaft, and the torsional spring can swing the one end of the abutting part of the linkage block outward, so that the abutting part abuts against the inner circumferential wall of the roller body to achieve abutting fixation;

[0018] The application is further provided with a plurality of abutting blocks fixedly connected to the side of the fixed stop block facing the movable stop block, the abutting blocks correspond one-to-one to the linkage blocks, an abutting inclined surface is arranged on the end of the abutting block facing the linkage block, the abutting inclined surface is arranged to be inclined towards the outer periphery of the roller sleeve, the linkage part of the linkage block is provided with an abutting arc surface adapted to abut against the abutting inclined surface, the abutting inclined surface and the abutting arc surface are adapted to abut against each other, when the movable stop ring and the fixed stop ring approach each other, the linkage part of the linkage block is swung outward on one side, the abutting part is swung inward on one side, so that the abutting part and the inner circumferential wall of the roller body are separated from each other;

[0019] The application is further provided that the linkage part of the linkage block is rotationally connected with a guide wheel, which is used for axially rolling and guiding with the inner peripheral wall of the roller body; when the abutting part of the linkage block abuts against the inner peripheral wall of the roller body, the guide wheel separates from the inner peripheral wall of the roller body and is retracted between the fixed stop ring and the movable stop ring; when the abutting part of the linkage block swings inward, the linkage part swings outward, and the guide wheel abuts against the inner peripheral wall of the roller body.

[0020] The application also provides a production process of the antibacterial and mildew-proof wall cloth, which is coated by using the coating system; the lower side of the conveying belt is adhered to the cloth to be coated, and the cloth is driven to pass through the upper side of the coating wire roller by the conveying belt; in the axial rotation process of the coating wire roller, the material scraping part extrudes the foamed slurry around the upper side of the coating wire roller outward by abutting against the coating wire roller, so as to coat the cloth around the upper side of the coating wire roller.

[0021] In summary, the application has the following beneficial effects:

[0022] By using the foamed slurry for coating, part of the coating aid can penetrate into the cloth, and most of the slurry can stay on the surface of the cloth. After drying, a dense protective layer can be formed on the surface of the cloth, thereby improving the overall antibacterial and mildew-proof effect of the wall cloth.

[0023] In the coating process, the lower coating method is used, and the slurry is located on the lower side of the cloth, so that the influence of gravity on the slurry can be reduced, and the slurry can be prevented from penetrating into the cloth due to the influence of gravity. The foamed slurry can float on the surface of the cloth by the tension between the foamed slurries, thereby facilitating the formation of the protective layer.

[0024] By using the differential coating method, the coating wire roller can produce relative slipping with the surface of the fabric during the coating process, thereby prolonging the contact distance between the slurry and the material scraping roller and increasing the contact effect between the slurry and the material scraping roller. Compared with synchronous rolling coating, the differential coating has better coating effect. Since there is relative slipping during the coating process, not only one point but multiple points can contact the cloth, thereby forming a coating effect and ensuring that the slurry can be attached to every position of the cloth. However, due to the relative friction between the cloth and the coating wire roller, the surface of the coating wire roller can be worn, and the coating wire roller needs to be regularly maintained, detected or replaced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 FIG. 1 is a structural schematic view of a surface coating system of an antibacterial and mildew-proof wall cloth according to the application;

[0026] Figure 2 FIG. 4 is a side view of a coating wire roller of the surface coating system of the antibacterial and mildew-proof wall cloth according to the application; Figure 1 ;

[0027] Figure 3 This is a schematic diagram of the material receiving tank of the surface coating system for antibacterial and mildew-proof wall coverings according to the present invention;

[0028] Figure 4 This is a side view of the coating roller of an antibacterial and mildew-resistant wall covering surface coating system according to the present invention. Figure 1 ;

[0029] Figure 5 This is a schematic diagram of the scraper roller of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the blocker of the present invention. Figure 1 ;

[0031] Figure 7 This is a schematic diagram of the structure of the blocker of the present invention. Figure 2 .

[0032] Reference numerals: 1. Coating roller; 101. Upper position; 102. Lower position; 103. Small diameter end; 104. Large diameter end; 2. Rotating seat; 3. Feed pipe; 4. Discharge hopper; 5. Fabric feeding; 6. Receiving groove; 601. Receiving groove; 602. Groove opening; 603. Inner groove; 604. Inclined surface; 605. Through hole; 7. Scraper; 701. Scraper; 702. Mounting base; 703. Scraper roller; 8. Roller body; 801. Seepage section; 802. Seepage hole; 803. 804. Feeding pipe; 905. Feeding hole; 906. Stopper; 907. Material chamber; 908. Ring sleeve; 909. Sealing ring one; 9000. Fixed stop ring; 901. Sealing ring two; 902. Stop block; 903. Moving stop ring; 904. Spring; 905. Notch; 906. Linkage block; 917. Linkage shaft; 918. Torsion spring; 919. Guide wheel; 910. Pressing part; 911. Linkage part; 912. Pressing arc surface; 913. Pressing block; 914. Pressing inclined surface; 915. Conveyor belt. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] This embodiment discloses a surface coating system for antibacterial and mildew-proof wall coverings, including a coating screen roller 1 and a scraper 7. The coating screen is a hollow annular roller with several mesh holes on its outer periphery. The coating screen roller 1 can store the foamed slurry to be coated. Since the slurry to be coated has a foamed structure, it can be temporarily stored in the coating screen roller 1.

[0035] The scraping member 7 is installed at the inner side of the coating screen roller 1 and can be pressed against the inner wall of the coating screen roller 1. During the axial rotation of the coating screen roller 1, the scraping member 7 presses against the coating screen roller 1 to extrude the foamed slurry around the upper side of the coating screen roller 1 outward, thereby coating the fabric 5 around the upper side position 101 of the coating screen roller 1.

[0036] By using the foamed slurry for coating, the slurry is foamed by the foaming device, and the mildew-resistant and antibacterial additives are mixed into the slurry to form foamed slurry. The foamed slurry has increased viscosity and contains a large number of micro-porous bubbles. The slurry slowly permeates through the mesh position, so that the foamed slurry can be temporarily stored in the coating screen roller 1, and as the coating screen roller 1 rotates, the slurry moves upward along with the coating screen roller 1. The exuded slurry forms a flowing state along the outer periphery of the coating screen roller 1, and the slurry is also attached to the outer periphery of the coating screen roller 1. To prevent the exuded slurry from excessively adhering to the outer periphery of the coating screen roller 1, the outer periphery of the coating screen roller 1 can be scraped and cleaned at regular intervals to prevent overcoating.

[0037] Rotary seats 2 are installed at both ends of the coating screen roller 1. The rotary seats 2 are installed on bearing seats and can be rotated and supported. The rotary seats 2 are driven by the outer peripheral gear transmission structure and the driving motor to realize the axial rotation of the coating screen roller 1.

[0038] The conveyor belt 10 is driven to rotate by the conveyor roller and can be tensioned at the upper side position 101 of the coating screen roller 1. The conveyor belt 10 has a certain adhesion on the outer periphery, which can use a high molecular adhesive layer or adhesive to keep the conveyor belt 10 and the fabric 5 in stable contact. The adhesion between the two is not strong, and only serves to stably support the fabric 5, keeping the fabric 5 stable during transportation and coating. After coating, the fabric 5 can easily separate from the conveyor belt 10.

[0039] The fabric 5 to be coated passes through the upper side of the coating screen roller 1 and is transported by the conveyor belt 10. The fabric 5 passing through the upper side of the coating screen roller 1 is in contact with the coating screen roller 1, and the slurry exuded from the surface of the coating screen roller 1 is attached to the surface of the fabric 5 to achieve coating.

[0040] The two ends of the coating wire roller 1 are open, one end is provided with a feeding pipe 3 which extends into the coating wire roller 1, and the slurry to be coated can be fed into the coating wire roller 1, and during the rotation of the coating wire roller 1, the slurry can be uniformly spread in the coating wire roller 1, and the input of the slurry can be realized. A discharge hopper 4 is arranged at the lower side of the other end of the coating wire roller 1. The inner side wall of the lower side position 102 of the coating wire roller 1 is inclined towards the discharge hopper 4, and the discharge hopper 4 can receive the slurry flowing from the coating wire roller 1. Since the coating wire roller 1 is in an inclined state, the slurry input into the coating wire roller 1 can form a circulation in the coating wire roller 1, which can make the slurry form a circulation, avoid local accumulation of the slurry during the circulation, and prevent the slurry from being stored in the local part for a long time to cause the concentration to be too high. The circulating slurry can keep the slurry at different positions during the coating process in a relatively uniform and consistent state, improving the uniformity and stability in different processes.

[0041] In a further preferred embodiment, the coating wire roller 1 has a conical cylindrical structure, one end is a small diameter end 103, and the other end is a large diameter end 104, as shown in the figure. Figure 1 Since the coating wire roller 1 is in a conical state, during installation, the axis of the coating wire roller 1 is kept inclined, and the upper side position 101 of the coating wire roller 1 is kept horizontal, so that the generatrix of the upper side of the coating wire roller 1 is in a horizontal state, and during operation, the upper side generatrix mainly contacts the cloth 5 to realize coating.

[0042] The lower side position 102 of the coating wire roller 1 is inclined towards one side, so that the cloth 5 in the coating wire roller 1 will flow downwardly at the lower side position 102 of the coating wire roller 1, and the slurry in the coating wire roller 1 can realize automatic circulation.

[0043] Since the coating wire roller 1 has a conical structure, the bearings at different positions of the outer periphery in the axial direction are not consistent, and since the axis of the coating wire roller 1 is inclined, the generatrix at the upper side position 101 of the coating wire roller 1 not only has a certain speed in the conveying direction of the cloth 5, but also has a speed trend in the width direction of the cloth 5. During the coating process of the cloth 5, the slurry has a movement in the width direction, so that the slurry can more easily spread in the width direction of the cloth 5, and the integrity of the coating slurry adhered to the surface of the cloth 5 during the coating process is increased.

[0044] During the upward rotation of the slurry carried by the coating wire roller 1, the slurry forms a turning in the width direction at the topmost position, that is, the state of the upper side position 101. The coated slurry can continue to move by virtue of its own inertia, and the slurry can be further seeped out from the surface of the coating wire roller 1, thereby increasing the coating amount.

[0045] During the rotation, the position of the outer circumferential surface of the coating anilox roll 1 rotates one circle, and the vertical projection on the surface of the fabric 5 will also change, forming a wave-shaped coating state. During the coating process, the coating anilox roll 1 rotates independently, and there is a certain difference in linear velocity between the contact position of the coating anilox roll 1 and the fabric 5, so that the fabric 5 can contact the longer length of the outer circumferential surface of the coating anilox roll 1 during the coating process, and more coating can be attached to the surface of the fabric 5, and then spread out through coating flow, thereby increasing the integrity of the coating attached to the surface of the fabric 5.

[0046] In order to keep the residence time of the slurry in the coating anilox roll 1, a receiving groove 6 is installed at the middle position of the inside of the coating anilox roll 1. The top of the receiving groove 6 is an open notch 602, and the width of the receiving groove is slightly smaller than the width of the coating anilox roll 1, and is greater than the width of the coating position of the fabric 5, so that the upper notch 602 of the receiving groove 6 can correspond to the upper position 101 of the coating anilox roll 1, and can be used to receive the slurry dropped by the scraping member 7. Because the slurry in the coating anilox roll 1 is extruded by the inside of the scraping member 7, a large amount of slurry will drop downward in the inside of the coating anilox roll 1, and will drop into the receiving groove 6 along the scraping member 7, thereby playing a role of recycling and collecting the slurry in the coating anilox roll 1, and the slurry injected into the coating anilox roll 1 each time can prolong the residence time in the coating anilox roll 1 through recycling, thereby reducing the process of recycling the slurry.

[0047] A larger groove is installed at the lower part of the entire coating anilox roll 1 to collect the dropped slurry, which can be recycled and used after foaming again, thereby reducing the waste of the slurry.

[0048] As shown in Figure 2 The scraping member 7 is a scraper 701, the lower side of the scraper 701 is installed in the receiving groove 6 through a mounting seat 702, the upper end of the scraper 701 protrudes out of the notch 602, and abuts against the inner side wall of the upper position 101 of the coating anilox roll 1. The edge position of the upper side of the scraper 701 can extrude the inner side surface of the coating anilox roll 1, and can form a convergence of the slurry on the inner side surface of the coating anilox roll 1, which can temporarily stay at the upper position 101 of the coating anilox roll 1, and under the pressure of the scraper 701, the slurry can be extruded to the fabric 5 for coating.

[0049] The receiving groove 6 is arranged along the length direction of the coating roll, and a plurality of through holes 605 are formed at the bottom position of the receiving groove, through which the coating slurry received in the receiving groove 6 can flow back to the inner circumferential surface of the coating anilox roll 1, which is beneficial to the uniform coating of the slurry in the coating anilox roll 1.

[0050] Further, an inner tank 603 with an open top is installed inside the receiving tank 6. The inner tank 603 can receive the slurry dripping from above, i.e. the dripping slurry first passes through the inner tank 603 and then flows into the receiving tank 6. As shown in Figure 3 the inner tank 603 is arranged to be inclined towards one side, and the lower end of the inner tank 603 is open. The slurry in the inner tank 603 can flow downward from the lower end of the inner tank 603 into the receiving tank 6 and converge at one side of the receiving tank 6.

[0051] The inner bottom of the receiving tank 6 is arranged as an inclined surface 604, which is opposite to the inclined direction of the inner side. The slurry flowing from the inner tank 603 is at a high position of the inclined surface 604 of the receiving tank 6. Following the slope of the inclined surface 604, the slurry can flow down the inclined surface 604 to fill the entire bottom position of the receiving tank 6. Further, the slurry received by the receiving tank 6 can flow relatively uniformly and be spread to almost the entire width length through the through hole 605 at the bottom of the inclined surface 604.

[0052] The scraping member 7 can also use a scraping roller 703 instead of the scraper 701. The scraping roller 703 in the shape of a ring roller can form a pressing contact with the upper side of the coating roller. Since the upper side of the scraping roller 703 is in the shape of a circular arc, the pressing contact position of the scraping member 7 with the upper side position 101 of the coating screen roller 1 can be increased. Further, the amount of slurry extruded on the upper side of the coating screen roller 1 can be increased, ensuring that sufficient slurry is coated onto the fabric 5, and the stability of the coating effect and coating quality can be increased.

[0053] Further, the scraping roller 703 is rotatably supported by bearing seats at both ends and can rotate in the axial direction, so that the scraping roller 703 can actively rotate and the rotation direction is opposite to that of the coating screen roller 1. During rotation, the scraping roller 703 and the coating screen roller 1 at the upper side position 101 move in opposite directions, and the slurry between them lubricates each other, so that the slurry can be smoothly extruded and coated. Moreover, the opposite movement directions of the two can increase the slurry extrusion effect of the scraping roller 703 on the coating screen roller 1, and achieve stable and sufficient supply of slurry.

[0054] As shown in Figure 4 the cross section of the inner tank 603 is in the shape of an arc, the lower side of the scraping roller 703 extends into the arc-shaped tank, and the position of the lower side of the scraping roller 703 can be immersed in the slurry in the inner tank, so that the surface of the scraping roller 703 always has a certain amount of slurry attached. Moreover, the outer periphery of the scraping roller 703 can also have an attached layer, which can be a fabric 5 with a certain adsorption effect, so that the scraping roller 703 itself carries slurry, and when it comes into pressing contact with the coating screen roller 1 above, it can extrude the slurry more uniformly, maintaining the stability of the coating process.

[0055] Moreover, such as Figure 4 As shown, the heights of the two sides of the cross-section of the inner groove 603 are not consistent. The higher side edge of the inner groove 603 is located in the opposite direction of the rotation of the scraper roller 703. The inner groove 603 and the scraper roller 703 are close to each other. The slurry accumulated in the inner groove 603 will move to the right due to the rotation of the scraper roller 703, which will extend the contact distance between the slurry and the scraper roller 703 and increase the contact effect between the slurry and the scraper roller 703.

[0056] This embodiment also discloses another surface coating system for antibacterial and mildew-resistant wall coverings, which is based on the above embodiments and further refers to... Figure 5 , 6 Further explanation is needed.

[0057] The scraper 7 employs a scraper roller 703, which includes a roller body 8. The roller body 8 has a hollow structure, with a material cavity 900 formed on the inner side for storing slurry. Furthermore, the middle section of the roller body 8 is a seepage section 801, and the outer periphery of the seepage section 801 is provided with several seepage holes 802 for slurry to seep out. During the coating process, the slurry is stored in and fills the material cavity 900, and the slurry can seep out from the middle seepage section 801 to the outer periphery, ensuring that the outer periphery of the scraper roller 703 is covered with a sufficient amount of slurry, thus maintaining the sufficiency of slurry coating.

[0058] A feeding pipe 803 runs through the inside of the roller body 8. The feeding pipe 803 extends into the middle of the material cavity 900, and a feeding hole 804 is opened at the middle end of the roller body 8. External slurry can be injected into the material cavity 900 through the feeding pipe 803 to realize the slurry supply in the roller body 8.

[0059] Furthermore, holes are made on the outer periphery of the seepage section 801, and a gel-like membrane is used to block these holes. By making holes in the gel-like membrane material, seepage holes 802 are formed. Since the gel-like membrane material has a certain elasticity, the seepage holes 802 are in a nearly closed state when not under pressure. Even if slurry accumulates in them, it will not quickly protrude from the seepage holes 802 on the outer periphery of the seepage section 801, resulting in a slow seepage state.

[0060] Two sets of baffles 9 are installed inside the roller body 8, forming a material cavity 900 between the two sets of baffles 9. The slurry in the roller body 8 is stored in the material cavity 900 between the two sets of baffles 9. The two sets of baffles 9 form a certain obstruction and pressure at both ends of the material cavity 900, so that the slurry in the material cavity 900 can be squeezed to a certain extent, thereby ensuring that the slurry seeps out from the seepage holes 802 on the surface of the roller body 8, and achieving the slurry coating effect on the surface of the scraper roller 703.

[0061] The distance between the two stoppers 9 is adjustable, and specifically, as shown in Figure 6 、 7 The stopper 9 includes a ring sleeve 901 that is sleeved on the outer periphery of the feeding pipe 803 and is sealed by a sealing ring I 902 installed on the inner periphery of the ring sleeve 901.

[0062] The outer periphery of one end of the ring sleeve 901 opposite to the other group of stoppers 9 is fixedly connected with a fixed stop ring 903, and the outer periphery of the fixed stop ring 903 is slidably sealed with the inner peripheral wall of the roller body 8 through a sealing ring II 904. The outer periphery of the other end of the ring sleeve 901 opposite to the other group of stoppers 9 is fixedly connected with a stop block 905. The outer periphery of the ring sleeve 901 is sleeved with a movable stop ring 906, and an axial sliding connection structure is formed between the movable stop ring 906 and the ring sleeve 901, and the movable stop ring 906 is limited by the fixed stop ring 903 and the stop block 905 and can slide and adjust between the fixed stop ring 903 and the stop block 905. A spring 907 is elastically biased between the fixed stop ring 903 and the movable stop ring 906, and the movable stop ring 906 can be limited and positioned on the stop block 905 by the elastic action of the spring 907, so that the fixed stop ring 903 and the movable stop ring 906 are respectively positioned at the outer side of the two ends of the ring sleeve 901, forming a double-stop ring structure.

[0063] A plurality of circumferentially distributed notches 908 are formed on the outer periphery of the movable stop ring 906, and a linkage block 909 is rotatably connected in the notches 908 through a linkage shaft 910. The linkage block 909 can be swing-adjusted through the linkage shaft 910, and the number of the linkage block 909 and the notches 908 is generally six to eight groups, which can be specifically set according to actual conditions. One end of the linkage block 909 extends to the direction of the stop block 905, forming a pressing part 913 that is pressed against the inner peripheral wall of the roller body 8. The other end of the linkage block 909 extends to the direction of the fixed stop block 905, forming a linkage part 914. A torsional spring 911 is sleeved on the outer periphery of the linkage shaft 910, and the torsional spring 911 can swing the one end of the pressing part 913 of the linkage block 909 outward, so that the pressing part 913 is pressed against the inner peripheral wall of the roller body 8 to be fixedly pressed. After the pressing part 913 is pressed against the inner periphery of the roller body 8, the mutual fixation between the pressing part 913 and the roller body 8 is maintained, forming a clamping structure.

[0064] The side of the fixed stop block 905 facing the movable stop block 905 is fixedly connected with a plurality of pressing blocks 916, and the pressing blocks 916 correspond to the linkage blocks 909 one by one. A pressing inclined surface 917 is formed on the end of the pressing block 916 facing the linkage block 909, and the pressing inclined surface 917 is inclinedly arranged toward the outer periphery of the roller sleeve. The linkage part 914 of the linkage block 909 has a pressing arc surface 915 that is adapted to be pressed against the pressing inclined surface 917. The pressing inclined surface 917 and the pressing arc surface 915 are adapted to be pressed against each other, realizing the linkage between the linkage block 909 and the fixed stop block 905 and the movable stop block 905.

[0065] When the movable stop ring 906 and the fixed stop ring 903 are close to each other, the pressing inclined surface 917 on the fixed stop block 905 pushes the outwardly swinging pressing cam surface 915, i.e. the linkage part 914 of the linkage block 909 swings outwardly on one side, and the pressing part 913 swings inwardly on the other side, so that the pressing part 913 is separated from the inner wall of the roller body 8, and the two groups of stop plugs 9 can be pushed from the inner side of the fixed stop block 905 to the back.

[0066] The guide wheel 912 is rotatably connected to the linkage part 914 of the linkage block 909, and can axially roll and slide along the inner wall of the roller body 8. When the pressing part 913 of the linkage block 909 is pressed against the inner wall of the roller body 8, the guide wheel 912 is separated from the inner wall of the roller body 8 and retracts between the fixed stop ring 903 and the movable stop ring 906; the pressing part 913 swings inwardly, the linkage part 914 swings outwardly, and the guide wheel 912 is pressed against the inner wall of the roller body 8.

[0067] When the scraping roller 703 is working, the stop plugs 9 are extruded from both ends of the roller body 8 to the middle of the roller body 8, so that the material cavity 900 in the middle of the stop plug 9 is shrunk. The slurry is injected into the material cavity 900 in the middle of the stop plug 9 through the feeding pipe 803, and the two groups of stop plugs 9 are pushed open outwardly by pressure, so that the material cavity 900 is filled with slurry, and there is almost no gap in the entire material cavity 900, and there is also no gap at the upper position 101 of the annular material cavity 900, so that the slurry can be stretched outwardly from each position of the entire outer periphery of the annular roller body 8, and especially the upper position 101 of the roller body 8 can always have sufficient slurry supply, so that more stable and uniform coating can be achieved.

[0068] After the two groups of stop plugs 9 are expanded to a proper distance, the pressure in the feeding pipe 803 is reduced, and the linkage block 909 in the stop plug 9 is expanded outwardly due to the action of the spring 907 and the torsion spring 911 in the stop plug 9, so that the pressing part 913 is stably clamped and fixed with the inner wall of the roller body 8, and at this time the stop plug 9 cannot continue to move outwardly. The pressure generated in the feeding pipe 803 continues to press the inner side of the material penetration section 801, so that the material penetration hole 802 is pressed and the output of the slurry is stable. Moreover, when the pressure in the feeding pipe 803 suddenly increases, the increased pressure will continue to push the stop plug 9 to move outwardly, the linkage between the fixed stop ring 903 and the movable stop ring 906 in the stop plug 9 is generated, the pressing part 913 is retracted inwardly, the clamping action between the stop plug 9 and the inner part of the roller body 8 disappears, the guide wheel 912 is pressed against the inner wall of the roller body 8 to drive the stop plug 9 to be pushed outwardly, and the effect of excessive pressure release can be achieved.

[0069] Further, the limiting spring 907 can be installed at the position of the back side of the two groups of stoppers 9, and the limiting spring 907 can form a certain inward pressure on the stoppers 9, one end of the limiting spring 907 can abut against the protruding step surface on the inner side of the roller body 8, and the other end can abut against the stopper 905 of the stopper 9, so as to support and limit the stopper 9. When the pressure in the feeding pipe 803 decreases and the elastic effect of the limiting spring 907 cannot be maintained, the limiting spring 907 will be pushed back and contracted, so as to realize the supplementary adjustment after the pressure decreases, and further maintain the pressure stability in the material cavity 900, keep the seepage section 801 in the stable seepage state, and maintain the stability of the coating effect.

[0070] The embodiment also discloses a production process of the antibacterial and mildew-proof wall cloth, which is coated by using any of the coating systems; the lower side of the conveying belt 10 is adhered to the cloth 5 to be coated, and the cloth 5 is driven by the conveying belt 10 to pass through the upper side of the coating mesh roller 1; in the axial rotation process of the coating mesh roller 1, the scraping member 7 extrudes the foamed slurry around the upper side of the coating mesh roller 1 outward by abutting against the coating mesh roller 1, and the cloth 5 around the upper side position 101 of the coating mesh roller 1 is coated. The foamed slurry layer is formed on the lower side of the cloth 5 by the coating system, and then the cloth 5 is conveyed into a drying device to dry the slurry layer, so as to obtain the antibacterial and mildew-proof wall cloth base material, and the wall cloth with the antibacterial and mildew-proof effect is formed by subsequent printing and compounding processes.

[0071] The slurry is relatively humid, can penetrate into the cloth 5 in the coating process, and enter the inside of the cloth 5, so that the inside of the cloth 5 has the antibacterial and mildew-proof effect, and most of the slurry stays in the lower side surface position of the cloth 5 in a foamed structure, and a protective layer with the antibacterial and mildew-proof effect is formed on the surface layer side of the cloth 5 after drying, and the protective layer can play the antibacterial and mildew-proof protection role in the one side direction and play the blocking effect.

[0072] Further, the cloth 5 can be coated again by using the coating process after the first coating and drying, and the other side of the cloth 5 is also coated, so that the antibacterial and mildew-proof protective layer can be formed on both sides of the cloth 5, and the antibacterial and mildew-proof effect of the cloth 5 is greatly improved.

[0073] The preferred embodiments of the application are described above, and the protection scope of the application is not limited to the above-mentioned embodiments. Any technical scheme falling within the idea of the application belongs to the protection scope of the application. It should be noted that, for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the application are also considered as the protection scope of the application.

Claims

1. A surface coating system for antibacterial and mildew-resistant wall coverings, characterized in that, The coating includes a coating screen roller (1) and a scraper (7) disposed inside the coating screen roller (1). The coating screen roller (1) is annularly hollow and has several mesh holes on its outer periphery. The coating screen roller (1) is used to store the foaming slurry to be coated. The scraper (7) is disposed inside the coating screen roller (1) and is used to abut against the upper inner wall of the coating screen roller (1). The two ends of the coating screen roller (1) are rotatably supported by a rotating seat (2) and can achieve axial rotation. During the axial rotation of the coating screen roller (1), the scraper (7) squeezes the foaming slurry that passes over the upper side of the coating screen roller (1) outward by pressing against the coating screen roller (1) to coat the fabric (5) at the upper position (101) of the coating screen roller (1). A receiving groove (6) is provided in the middle of the inner side of the coating screen roller (1). An open slot (602) is provided at the top of the receiving groove (6). The slot (602) corresponds to the upper side position (101) of the coating screen roller (1) and is used to receive the slurry dripped by the scraper (7). The scraper (7) is a scraper roller (703). The scraper roller (703) is rotatably supported at both ends by bearing seats and can rotate axially. The direction of rotation is opposite to that of the coating screen roller (1). The upper edge of the scraper roller (703) abuts against the inner side of the upper position (101) of the coating screen roller (1). The scraper roller (703) includes a roller body (8), which has a material cavity (900) for storing slurry. The middle section of the roller body (8) is a seepage section (801), and the outer periphery of the seepage section (801) is provided with a plurality of seepage holes (802) for slurry to seep out. A feeding pipe (803) is provided through the roller body (8), and a feeding hole (804) is provided at the position where the feeding pipe (803) extends into the middle of the material cavity (900). External slurry can be injected into the material cavity (900) through the feeding pipe (803). Two sets of baffles (9) are provided inside the roller body (8). The distance between the baffles (9) is adjustable, and the material cavity (900) is formed between the two sets of baffles (9). Each baffle (9) includes a ring (901), which is sleeved on the outer periphery of the feeding pipe (803) and achieves sliding sealing through a sealing ring (902). A fixed baffle ring (903) is fixedly connected to the outer periphery of the ring (901) opposite to the other set of baffles (9). The outer periphery of the ring (901) is slidably sealed to the inner circumferential wall of the roller (8) by the sealing ring (904); a stop block (905) is fixedly connected to the outer periphery of the ring (901) opposite to the other set of stop blocks (9); a movable stop ring (906) is sleeved on the outer periphery of the ring (901); the movable stop ring (906) can slide and adjust between the fixed stop ring (903) and the stop block (905); a spring (907) is elastically pressed between the fixed stop ring (903) and the movable stop ring (906); The moving stop ring (906) has several circumferentially distributed notches (908) on its outer periphery. A linkage block (909) is rotatably connected to the notch (908) through a linkage shaft (910). One end of the linkage block (909) extends toward the stop block (905) to form a pressing part (913) for pressing against the inner peripheral wall of the roller body (8), and the other end extends toward the fixed stop block (905) to form a linkage part (914). A torsion spring (911) is sleeved on the outer periphery of the linkage shaft (910). The torsion spring (911) can drive one end of the pressing part (913) of the linkage block (909) to swing outward, so that the pressing part (913) presses against the inner peripheral wall of the roller body (8) to achieve pressing and fixing. A plurality of pressing blocks (916) are fixedly connected to the side of the fixed stop block (905) facing the moving stop block (905). Each pressing block (916) corresponds to a linkage block (909). One end of each pressing block (916) facing the linkage block (909) is provided with a pressing inclined surface (917). The pressing inclined surface (917) is inclined towards the outer periphery of the roller sleeve. The linkage part (914) of the linkage block (909) is provided with... The pressure-adapting inclined surface (917) and the pressure-adapting arc surface (915) are adapted to each other. When the moving stop ring (906) and the fixed stop ring (903) approach each other, the linkage part (914) of the linkage block (909) swings outward on one side and the pressure part (913) swings inward on one side, so that the pressure part (913) separates from the inner peripheral wall of the roller body (8). A guide wheel (912) is rotatably connected to the linkage part (914) of the linkage block (909). The guide wheel (912) is used to axially roll and guide the inner peripheral wall of the roller body (8). When the pressing part (913) of the linkage block (909) presses against the inner peripheral wall of the roller body (8), the guide wheel (912) separates from the inner peripheral wall of the roller body (8) and retracts between the fixed stop ring (903) and the moving stop ring (906). The pressing part (913) of the linkage block (909) swings inward, the linkage part (914) swings outward, and the guide wheel (912) abuts against the inner peripheral wall of the roller body (8). When the scraper roller (703) is working, the stoppers (9) are squeezed from both ends of the roller body (8) towards the middle of the roller body (8), and the material cavity (900) in the middle of the stopper (9) is contracted. Slurry is injected into the material cavity (900) in the middle of the stopper (9) through the feeding pipe (803). By applying pressure, the two sets of stoppers (9) are pushed outward, so that the material cavity (900) is filled with slurry. The linkage block (909) is pushed outward, so that the pressing part (913) and the inner circumference of the roller (8) are clamped together; When the pressure in the feed pipe (803) suddenly increases, the increased pressure will continue to push the stop (9) to move outward. The fixed stop ring (903) and the moving stop ring (906) in the stop (9) will be linked together, the pressing part (913) will shrink inward, the clamping effect between the stop (9) and the inside of the roller (8) will disappear, and the guide wheel (912) and the inner circumference of the roller (8) will press against each other to drive the stop (9) to move outward. The limiting spring (907) can exert a certain inward pressure on the stop (9). One end of the limiting spring (907) can press against the raised step surface inside the roller (8), and the other end can press against the stop block (905) of the stop (9), thereby supporting and limiting the stop (9).

2. The surface coating system for an antibacterial and mildew-resistant wall covering according to claim 1, characterized in that, It also includes a conveyor belt (10), which is located on the upper side of the coating screen roller (1) and is in contact with the upper part of the coating screen roller (1). The lower side of the conveyor belt (10) is used to bond with the fabric (5) to be coated. The fabric (5) is driven by the conveyor belt (10) to pass over the upper side of the coating screen roller (1).

3. The surface coating system for an antibacterial and mildew-resistant wall covering according to claim 1, characterized in that, The coating roller (1) is open at both ends, with a feed pipe (3) at one end and a discharge hopper (4) at the lower side of the other end; the inner wall of the lower side position (102) of the coating roller (1) is inclined towards the discharge hopper (4), and the discharge hopper (4) is used to receive the slurry flowing down from the coating roller (1).

4. The surface coating system for an antibacterial and mildew-resistant wall covering according to claim 3, characterized in that, The coating roller (1) has a conical cylindrical structure, with one end being the small diameter end (103) and the other end being the large diameter end (104). The axis of the coating roller (1) is inclined, and the upper position (101) of the coating roller (1) is horizontal, while the lower position (102) is inclined to one side.

5. The surface coating system for an antibacterial and mildew-resistant wall covering according to claim 1, characterized in that, The receiving trough (6) is arranged along the length of the coating roller. The receiving trough (6) has an open inner trough (603) inside, which can receive the slurry dripping from above. The inner trough (603) is inclined to one side, and the slurry in the inner trough (603) drips down from the opening at the end of the inner trough (603) to the bottom of the receiving trough (6). The bottom of the inner side of the receiving trough (6) is set as an inclined surface (604), which is opposite to the inclination direction of the inner side. Several through holes (605) are provided at the bottom of the inclined surface (604), and each through hole (605) is used for the downward flow of slurry.

6. The surface coating system for an antibacterial and mildew-resistant wall covering according to claim 5, characterized in that, The inner groove (603) has an arc-shaped cross-section, and the lower side of the scraper roller (703) extends into the arc-shaped groove.

7. A production process for antibacterial and mildew-resistant wall coverings, characterized in that, Coating is performed using the coating system described in any one of claims 1-6; the lower side of the conveyor belt (10) is bonded to the fabric (5) to be coated, and the fabric (5) is driven by the conveyor belt (10) to pass over the upper side of the coating screen roller (1); during the axial rotation of the coating screen roller (1), the scraper (7) squeezes the foamed slurry that passes over the upper side of the coating screen roller (1) outward by pressing against the coating screen roller (1), and coats the fabric (5) at the position (101) on the upper side of the coating screen roller (1).

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