An automatic coating equipment for tile adhesive

Abstract

The present invention relates to the technical field of ceramic tile processing equipment, and in particular to an automated coating equipment for ceramic tile adhesive, comprising: a coating execution unit and a differential transmission assembly. The coating execution unit comprises a first roller, a second roller and a third roller. During the process of coating ceramic tile adhesive, the first roller is tightly attached to the ceramic tile to keep the distance between the second roller and the ceramic tile constant, ensuring consistent coating pressure and uniform adhesive thickness; the second roller is detachably provided with bristles, and the second roller and the third roller form a glue storage area, which makes the glue liquid evenly pressurized and stably discharged through a constant distance; the differential transmission assembly drives the first roller and the second roller to rotate in opposite directions, and makes the linear speed of the second roller greater than the linear speed of the first roller, which can quickly remove the glue liquid, reduce the lateral pulling force during separation, avoid the rough surface from tilting, and form a vertical rough surface structure.

Description

Technical Field

[0001] The present invention relates to the technical field of tile processing equipment, in particular to an automatic coating device for tile back glue. Background Art

[0002] Tile adhesive coating equipment is used in the construction and renovation industry to apply adhesive to tiles before installation. It can accommodate tiles of varying sizes and shapes and is widely used in residential and commercial buildings. The coating equipment typically uses a rotating roller to evenly transfer the adhesive to the back of the tile.

[0003] Patent publication number CN116174228A discloses a tile backing adhesive coating system. This patent utilizes a loading device and a conveying device to transport tiles to the bottom of the coating device. The adhesive then flows through the adhesive outlet and into multiple adhesive inlets on a scraper housing. Because the active rubber roller is provided with a scraper housing on the top and outside of the active rubber roller, along with adhesive reservoirs uniformly arranged on the outer wall of the active rubber roller, the adhesive is retained in the reservoirs. During rotation, the adhesive in the reservoirs then flows to the driven rubber roller, applying the adhesive to the tiles. After coating, the adhesive is then transported out through a conveying device and a discharge device. During this process, the amount of adhesive in the reservoirs remains consistent, ensuring uniformity and consistency.

[0004] However, in the prior art automated tile adhesive coating equipment, including the aforementioned patent, when the coating roller rotates and moves away from the tile application point, the tangential movement of the roller surface exerts a horizontal force on the adhesive. Simultaneously, the adhesion between the adhesive and the roller bristles pulls on the adhesive, causing a horizontal offset at the separation point between the adhesive and the roller. As the roller continues to rotate, the offset accumulates, resulting in a tilted, rough surface on the tile adhesive surface. This tilted, rough surface reduces the effective contact area between the tile and the substrate, weakening the bond strength and increasing the risk of tile hollowing and falling off. Summary of the Invention

[0005] Based on this, it is necessary to provide an automated tile adhesive coating device to address the problem that a large number of adhesive separation point offsets and accumulations in the current tile adhesive coating device result in an inclined rough surface on the tile adhesive surface.

[0006] The above purpose is achieved through the following technical solutions:

[0007] An automatic coating device for tile adhesive, comprising:

[0008] The gluing execution unit includes a first roller, a second roller and a third roller. During the process of coating the ceramic tiles with glue, the first roller closely fits the ceramic tiles to maintain the distance between the second roller and the ceramic tiles. The second roller is detachably provided with bristles, and the bristles are used to coat the ceramic tiles with glue. A glue storage area is formed between the third roller and the second roller, and the glue storage area is used to accommodate glue liquid.

[0009] A differential transmission assembly drives the first roller and the second roller to rotate in opposite directions, and makes the linear speed of the first roller smaller than the linear speed of the second roller.

[0010] In one embodiment, the differential transmission assembly includes a first reverse wheel set and a first belt, and the first reverse wheel set and the first belt are used to enable the first roller to drive the second roller to rotate.

[0011] In one embodiment, along the traveling direction of the gluing execution unit during operation, the rotation center of the first roller is located in front of the rotation center of the second roller.

[0012] In one embodiment, both ends of the second roller are configured as inclined sections, and the inclined sections are used to limit the glue from overflowing toward the edge of the tile.

[0013] In one embodiment, the differential transmission assembly drives the third roller to rotate in a direction opposite to the second roller, and makes the linear speed of the third roller greater than the linear speed of the second roller, so that the bristles can be arranged in a direction when the third roller rotates.

[0014] In one embodiment, the differential transmission assembly includes a second reverse wheel set and a second belt, and the second reverse wheel set and the second belt are used to enable the second roller to drive the third roller to rotate.

[0015] In one embodiment, an adjustment device is included, which includes a spacing adjustment module and a telescopic component. The spacing adjustment module is used to adjust the spacing between the first roller and the second roller to adapt to tiles of different thicknesses. The spacing adjustment module is provided with a tension component, and the tension component is used to adjust the tension of the first belt. The telescopic component is used to rotate the second rollers connected with different lengths so that the glue execution unit can adapt to tiles of different widths.

[0016] In one embodiment, the spacing adjustment module includes a first slider and a first slide groove, the first slider can move in the vertical direction in the first slide groove, and the tension assembly includes a second slider and a second slide groove, the second slider abuts against the first belt, and the second slider can move in the horizontal direction in the second slide groove.

[0017] In one embodiment, the telescopic assembly includes an inner rod and an outer tube, and the inner rod and the outer tube are located inside the second roller and can slide relative to each other.

[0018] In one embodiment, the gluing unit includes a positioning block, which is located at the travel end of the gluing unit to limit the initial position of the gluing unit and the tile.

[0019] The beneficial effects of the present invention are:

[0020] The present invention provides an automated coating device for ceramic tile adhesive, comprising: a coating execution unit and a differential transmission assembly. The coating execution unit includes a first roller, a second roller, and a third roller. During the process of coating ceramic tile adhesive, the first roller closely adheres to the ceramic tile to maintain the spacing between the second roller and the ceramic tile. The second roller is detachably provided with bristles, which are used to coat the ceramic tile adhesive. A glue storage area is formed between the third roller and the second roller, and the glue storage area is used to accommodate the glue liquid. The differential transmission assembly drives the first roller and the second roller to rotate in opposite directions, and makes the linear speed of the first roller less than the linear speed of the second roller. Thus, by making the first roller closely adhere to the ceramic tile surface, the spacing between the second roller and the ceramic tile is ensured to be constant, so that the second roller always contacts the ceramic tile with the same pressure during the coating process, avoiding pressure changes and ensuring the uniformity of the thickness of the ceramic tile adhesive. The glue storage area between the second and third rollers maintains a constant spacing between them, ensuring that the glue in the storage area is always evenly compressed. As the second roller rotates, the glue is squeezed out from the gaps between the bristles at a steady flow rate, ensuring a consistent amount of glue applied by the second roller. The differential drive assembly controls the reverse rotation and linear speed difference between the first and second rollers, allowing the second roller to move at a faster speed, quickly removing the glue and reducing the lateral pull during separation. This prevents surface tilting and creates a more vertical surface structure on the tile surface, resolving the surface tilting problem caused by roller movement in traditional coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of an automated tile adhesive coating device according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1A top view of the automated coating equipment for ceramic tile adhesive;

[0023] Figure 3 for Figure 2 AA cross-sectional diagram of the automated coating equipment for ceramic tile adhesive;

[0024] Figure 4 for Figure 2 BB cross-sectional diagram of the automated coating equipment for ceramic tile adhesive;

[0025] Figure 5 for Figure 3 A partial enlarged view of location C of the automated coating equipment for ceramic tile adhesive;

[0026] Figure 6 for Figure 4 A partial enlarged view of the automated coating equipment for ceramic tile adhesive at location D;

[0027] Figure 7 A schematic structural diagram of a glue application unit in an automated tile adhesive application device according to an embodiment of the present invention;

[0028] Figure 8 for Figure 7 An exploded view of the glue application unit in the automated tile adhesive coating equipment;

[0029] Figure 9 for Figure 8 A partial enlarged view of the gluing execution unit E in the automated coating equipment for ceramic tile adhesive;

[0030] Figure 10 for Figure 8 A partial enlarged view of the gluing execution unit F in the automated coating equipment for ceramic tile adhesive.

[0031] in:

[0032] 100, gluing execution unit; 110, fixing frame; 120, first roller; 130, second roller; 131, tilting section; 140, third roller; 150, positioning block;

[0033] 200, differential drive assembly; 210, first reverse pulley set; 211, first rotating pulley; 212, second rotating pulley; 213, first fixed pulley; 214, first pulley; 220, first belt; 230, second reverse pulley set; 231, third rotating pulley; 232, fourth rotating pulley; 233, second fixed pulley; 234, synchronous pulley; 240, second belt;

[0034] 300, adjustment device; 310, spacing adjustment module; 311, first slider; 312, first chute; 320, tension assembly; 321, second slider; 322, second chute; 330, telescopic assembly; 331, inner rod; 332, outer tube;

[0035] 400, tiles;

[0036] 500, bracket;

[0037] 600. Suction cup. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0040] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] Refer to the following Figures 1-10 The automatic coating equipment for tile adhesive provided by an embodiment of the present invention is described.

[0042] like Figures 1-4As shown, the automatic tile adhesive coating equipment provided by the embodiment of the present invention is particularly suitable for efficient and precise coating operations during the construction of various types of tiles 400. Of course, it can also be used in other related operation scenarios that require uniform coating of sticky substances onto the surface of similar sheet materials.

[0043] The automated tile adhesive coating equipment provided in this embodiment includes a bracket 500 and a suction cup 600. The bracket 500 serves as a base for mounting other components and is fixed to the ground or other fixed surface. The suction cup 600 is detachably attached to the bracket 500 and is used to secure the tile 400. The bracket 500 and suction cup 600 maintain the stability of the tile 400 during the coating process.

[0044] To apply adhesive with consistent pressure and maintain a consistent amount of adhesive during the coating process, the automated tile adhesive coating equipment provided by the embodiments of the present invention includes a gluing execution unit 100, which comprises a first roller 120, a second roller 130, and a third roller 140. The first roller 120 is in close contact with the tile 400 to maintain a distance between the second roller 130 and the tile 400. The second roller 130 is detachably provided with bristles for applying adhesive to the tile 400. A glue storage area is formed between the third roller 140 and the second roller 130 to accommodate the glue liquid.

[0045] Specifically, the glue application unit 100 includes a fixing frame 110, and the rotating shafts of the first roller 120, the second roller 130 and the third roller 140 are fixedly connected to the fixing frame 110. During the adhesive application process, the first roller 120 is located below the tile 400, and the second roller 130 and the third roller 140 are located above the tile 400. Figure 3 The direction of travel of the glue application unit 100 shown in FIG makes the third roller 140 located in front of the second roller 130. The coating area formed between the first roller 120 and the second roller 130 is the working area for the back glue coating of the tile 400.

[0046] The first roller 120 closely adheres to the display surface of the tile 400 and rolls along the surface of the tile 400, guiding the coating equipment to move smoothly along the surface of the tile 400. During the adhesive coating process, the first roller 120 provides accurate positioning for the second roller 130, ensuring that the second roller 130 and the tile 400 maintain a precise relative position. This allows the second roller 130 to maintain constant pressure on the tile 400 throughout the coating process, ensuring a uniform thickness of the tile adhesive.

[0047] The second roller 130 is detachably provided with a brush. During the process of applying the adhesive, the brush is dipped into the adhesive and evenly applied to the bonding surface of the tile 400 .

[0048] A glue storage area is formed between the third roller 140 and the second roller 130. This area can hold a sufficient amount of glue, providing a stable source of glue for the second roller 130's gluing operation. The spacing between the second roller 130 and the third roller 140 remains constant. As the second roller 130 rotates, glue is squeezed out of the gaps between the bristles at a steady flow rate, ensuring a consistent amount of glue delivered by the second roller 130 during coating.

[0049] Before starting the coating operation, the glue liquid needs to be filled into the glue storage area formed by the second roller 130 and the third roller 140 to ensure that there is sufficient glue liquid for subsequent coating.

[0050] After the preparation work is completed, the operator uses the fixing frame 110 to tightly fit the first roller 120 to the display surface of the tile 400, so that the first roller 120 can move stably along the surface of the tile 400, allowing the second roller 130 to coat the bonding surface of the tile 400.

[0051] After the bristles on the second roller 130 saturate the glue in the glue storage area, the second roller 130 rotates and uses the bristles to coat the tiles 400 located in the coating area. The gluing execution unit 100 starts from the starting end of the tile 400 and moves smoothly along the surface of the tile 400, continuously applying glue until it reaches the end of the tile 400. The operator then removes the first roller 120, the second roller 130, and the third roller 140 from the tile 400 using the fixing frame 110, thus completing the adhesive coating operation on the tile 400.

[0052] In the prior art, when the second roller 130, acting as the glue coating wheel, rotates and disengages from the application point on the tile 400, the tangential movement of the second roller 130's surface exerts a horizontal force on the glue. Simultaneously, due to the adhesion between the glue and the roller bristles, the glue is pulled, causing the separation point between the glue and the roller to shift horizontally. This large amount of glue separation point offset accumulates on the bonding surface of the tile 400, forming a tilted, rough surface. This tilted, rough surface disrupts the smoothness of the adhesive backing surface, reducing the effective contact area between the tile 400 and the base layer, weakening the bonding strength, and increasing the risk of the tile 400 becoming hollow or falling off.

[0053] Based on this, Figures 1-6 As shown, in order to reduce the inclination angle of the rough surface, the embodiment of the present invention includes a differential transmission component 200, which drives the first roller 120 and the second roller 130 to rotate in opposite directions, and makes the linear speed of the first roller 120 less than the linear speed of the second roller 130.

[0054] Specifically, such as Figure 3 As shown in FIG, the direction of travel of the glue application execution unit 100 is from right to left. Figure 4 As shown in , clockwise rotation is positive rotation, and counterclockwise rotation is negative rotation.

[0055] Under the friction between the first roller 120 and the tile 400, the first roller 120 rotates in the forward direction.

[0056] The differential drive assembly 200 drives the second roller 130 to rotate in the opposite direction so that during the rotation of the second roller 130, the bristles on the surface of the second roller 130 can dip into the glue storage area to pick up the glue, and then bring the glue to the surface of the tile 400 for coating in the direction of rotation.

[0057] The differential drive assembly 200 drives the second roller 130 at a higher linear velocity than the first roller 120, enabling the second roller 130 to quickly remove the adhesive, reducing the lateral pull on the adhesive during separation. When the second roller 130 leaves the coating point on the tile 400, the higher linear velocity allows the second roller 130 to quickly remove the adhesive from the coating point, shortening the contact time between the adhesive and the roller. Furthermore, the high speed of the second roller 130 reduces the lateral pull on the adhesive during separation, creating a longitudinal separation trend and making the adhesive separation direction closer to perpendicular to the tile 400 surface.

[0058] When the coating equipment begins applying adhesive to the ceramic tile 400, the differential drive assembly 200 drives the second roller 130 and the first roller 120 to rotate in different directions and linear speeds. While moving in close contact with the surface of the ceramic tile 400, the first roller 120 rotates at a lower linear speed, ensuring a constant distance between the second roller 130 and the ceramic tile 400. This ensures that the second roller 130 always contacts the ceramic tile 400 with the same pressure during the coating process, ensuring a uniform thickness of the ceramic tile adhesive. The second roller 130 rotates in the opposite direction at a faster linear speed. The bristles of the second roller 130 are dipped in the adhesive and then applied to the surface of the ceramic tile 400. The higher linear speed allows the second roller 130 to quickly remove the adhesive, reducing lateral pull when the second roller 130 separates from the adhesive, and making the adhesive separation direction closer to perpendicular to the ceramic tile 400 surface.

[0059] Therefore, by closely fitting the first roller 120 to the surface of the tile 400, a stable position reference is formed, ensuring that the distance between the second roller 130 and the tile 400 is always consistent. During the process of applying the adhesive, the second roller 130 contacts the tile 400 with a constant pressure, ensuring that the thickness of the applied adhesive is uniform.

[0060] The glue storage area between the second roller 130 and the third roller 140 and the constant spacing between the second roller 130 and the third roller 140 ensure that the glue in the glue storage area is evenly pressurized. When the second roller 130 rotates, the glue is squeezed out from the gaps between the bristles at a stable flow rate, ensuring the consistency of the glue output.

[0061] The first roller 120 and the second roller 130 are driven to rotate in opposite directions by the differential transmission assembly 200, and the linear speed of the second roller 130 is higher than the linear speed of the first roller 120, so that the second roller 130 rotating at a high speed can quickly take away the glue when leaving the coating point, thereby reducing the lateral pulling force caused by adhesion, forming a more vertical rough surface, increasing the effective contact area between the tile 400 and the base layer, enhancing the bonding strength, and reducing the risk of the tile 400 becoming hollow or falling off.

[0062] In other embodiments without the differential drive assembly 200, a drive device may be used for driving. The drive device may be a common drive form, such as an electric motor, an internal combustion engine, etc. The power source of the drive device may be centralized, transmitting power to other components through a transmission structure, or the power source may be decentralized, with multiple decentralized power sources driving each component separately.

[0063] In one embodiment, Figure 5-10 As shown, the differential transmission assembly 200 includes a first reverse wheel set 210 and a first belt 220 . The first reverse wheel set 210 and the first belt 220 are used to enable the first roller 120 to drive the second roller 130 to rotate.

[0064] Specifically, in order to enable the first roller 120 and the second roller 130 to rotate in opposite directions, the first reverse wheel group 210 includes a first rotating wheel 211, a second rotating wheel 212, and a first fixed wheel 213. The second roller 130 is fixedly connected to a first pulley 214 at both ends, and the second roller 130 and the first pulley 214 rotate synchronously.

[0065] The first rotating wheel 211 is fixedly connected to both ends of the rotating shaft of the first roller 120, and the first rotating wheel 211 rotates synchronously with the first roller 120. The second rotating wheel 212 is rotationally connected to both ends of the first roller 120. The first fixed wheel 213 is tightly abutted between the first rotating wheel 211 and the second rotating wheel 212, enabling force transmission and direction adjustment between the first rotating wheel 211 and the second rotating wheel 212. The first belt 220 is wrapped around the second rotating wheel 212 and the first pulley 214, ensuring that the second rotating wheel 212 and the second roller 130 rotate in the same direction.

[0066] When the glue coating execution unit 100 starts coating and the first roller 120 starts to rotate forward, the first rotating wheel 211 also rotates forward because the first rotating wheel 211 rotates synchronously with the rotating shaft of the first roller 120. The forward rotation of the first rotating wheel 211 will exert a tangential force on the first fixed wheel 213 abutting against it, causing the first fixed wheel 213 to start rotating in the opposite direction around its own central axis. The reverse rotation of the first fixed wheel 213 further drives the second rotating wheel 212 abutting against it to rotate in the opposite direction. At this time, because the first belt 220 is wound around the second rotating wheel 212 and the first pulley 214, the reverse rotation of the second rotating wheel 212 transmits power to the first pulley 214 through the first belt 220, thereby driving the second roller 130 to rotate in the opposite direction.

[0067] In order to make the linear velocity of the first roller 120 lower than the linear velocity of the second roller 130 , the diameter of the second roller 130 is made larger than the diameter of the first pulley 214 .

[0068] According to the positive correlation between linear velocity and diameter, that is, at the same angular velocity, the larger the diameter, the greater the linear velocity, the first rotating wheel 211 and the first roller 120 rotate synchronously, that is, at the same angular velocity.

[0069] The diameter of the first rotating wheel 211 is smaller than the diameter of the first roller 120 , so that the linear speed of the first rotating wheel 211 is smaller than the linear speed of the first roller 120 .

[0070] The first fixed wheel 213 is in contact with the inner circumference of the first rotating wheel 211 and the second rotating wheel 212. The first rotating wheel 211 drives the second rotating wheel 212 to rotate in the opposite direction through the first fixed wheel 213. At this time, the inner circumferences of the first rotating wheel 211 and the second rotating wheel 212 have the same linear velocity.

[0071] The outer wall diameter of the second rotating wheel 212 is larger than the inner wall diameter of the second rotating wheel 212 , and the linear velocity of the outer periphery of the second rotating wheel 212 is larger than the linear velocity of the inner periphery of the second rotating wheel 212 , that is, the linear velocity of the outer periphery of the second rotating wheel 212 is larger than the linear velocity of the first rotating wheel 211 .

[0072] The first belt 220 fits the outer wall of the second rotating wheel 212 and the first pulley 214 . The outer wall of the second rotating wheel 212 drives the first pulley 214 to rotate through the first belt 220 . The linear velocity of the second rotating wheel 212 is equal to the linear velocity of the first pulley 214 .

[0073] Since the second roller 130 and the first pulley 214 rotate synchronously, that is, the angular velocities of the second roller 130 and the first pulley 214 are equal, the diameter of the second roller 130 is larger than the diameter of the first pulley 214, and thus the linear velocity of the second roller 130 is greater than the linear velocity of the first pulley 214.

[0074] To sum up, the linear velocity of the first roller 120 is greater than the linear velocity of the first rotating wheel 211, the linear velocity of the first rotating wheel 211 is less than the linear velocity of the outer periphery of the second rotating wheel 212, the linear velocity of the outer periphery of the second rotating wheel 212 is equal to the linear velocity of the first pulley 214, and the linear velocity of the first pulley 214 is less than the linear velocity of the second roller 130.

[0075] Therefore, by making the diameter of the second roller 130 larger than the diameter of the first pulley 214 , it is possible to achieve that the linear speed of the second roller 130 is larger than the linear speed of the first roller 120 .

[0076] For example, assuming that the linear velocity of the first roller 120 is 6, the diameter of the first roller 120 is 3, the diameter of the rotating shaft of the first roller 120 is 1, and the diameter ratio of the first roller 120 to its rotating shaft is 3:1, then the linear velocity of the rotating shaft of the first roller 120 is 2, that is, the linear velocity of the inner circumference of the second rotating wheel 212 is 2.

[0077] The inner wall diameter of the second rotating wheel 212 is 2, and the outer wall diameter of the second rotating wheel 212 is 3, that is, the diameter ratio of the inner and outer peripheries of the second rotating wheel 212 is 2:3. At this time, the linear velocity of the outer periphery of the second rotating wheel 212 is 3, that is, the linear velocity of the first pulley 214 is 3.

[0078] The diameter of the first pulley 214 is 4, the diameter of the second roller 130 is 9, and the diameter ratio of the second roller 130 to the first pulley 214 is 9:4. At this time, the linear speed of the second roller 130 is 6.75. Obviously, the linear speed of the second roller 130 is greater than the linear speed of the first roller 120.

[0079] Thus, through the first reverse wheel assembly 210 and the first belt 220, when the first roller 120 rotates in the forward direction, it can drive the second roller 130 to rotate in the reverse direction, thereby achieving a rotation direction conversion relationship between the first roller 120 and the second roller 130. The linear speed of the second roller 130 is greater than the linear speed of the first roller 120 by setting the diameter difference.

[0080] It is understood that the positional and diameter relationships between the first belt 220 and the first rotating pulley 211, second rotating pulley 212, and first fixed pulley 213 of the first counter-rotating pulley set 210 can be varied. For example, the first rotating pulley 211, second rotating pulley 212, and first fixed pulley 213 can be located at either end of the second roller 130, with the second rotating pulley 212 located on the rotation axis of the second roller 130. The first rotating pulley 211 and the second rotating pulley 212 are coaxially arranged, with the diameter of the first rotating pulley 211 being larger than that of the second rotating pulley 212, such that the first fixed pulley 213 is located between the first rotating pulley 211 and the second rotating pulley 212. The first belt 220 is wound around the rotation axis of the first roller 120 and the first rotating pulley 211. The positional relationship between the first rotating pulley 211, second rotating pulley 212, and first fixed pulley 213 enables the first roller 120 to drive the second roller 130 in reverse rotation. By setting the diameter difference between the inner and outer circumferences of the second rotating wheel 212 and the diameter difference between the second roller 130 and its rotating shaft, the linear speed of the second roller 130 is greater than the linear speed of the first roller 120.

[0081] However, the positional relationship and diameter relationship between the first belt 220 and the first rotating wheel 211, the second rotating wheel 212 and the first fixed wheel 213 in the first reverse wheel group 210 should satisfy that the first roller 120 and the second roller 130 rotate in opposite directions and the linear speed of the second roller 130 is greater than the linear speed of the first roller 120.

[0082] In one embodiment, existing coating equipment cannot effectively prevent the glue from being applied to the sidewalls of the tiles 400. When the glue is applied to the sidewalls of the tiles 400, the gaps between adjacent tiles 400 become uneven in width during installation, affecting the overall aesthetics. Excess glue can also contaminate the gaps, making them difficult to clean. Furthermore, glue on the sidewalls can alter the force distribution of the tiles 400, reducing installation stability, increasing the risk of hollowing and falling tiles 400 later, and shortening their service life.

[0083] Based on this, Figures 1-6 As shown, along the traveling direction of the gluing execution unit 100 when working, the rotation center of the first roller 120 is located in front of the rotation center of the second roller 130.

[0084] Specifically, such as Figure 3 As shown in , along the traveling direction of the gluing execution unit 100 when working, the rotation center of the first roller 120 is located in front of the rotation center of the second roller 130.

[0085] As the gluing unit 100 moves forward, the friction between the first roller 120 and the tile 400 allows the first roller 120 to adhere tightly to the surface of the tile 400 and rotate smoothly. As the gluing unit 100 moves forward, the friction generated by the backward movement of the tile 400 relative to the first roller 120 causes the first roller 120 to rotate about its axis.

[0086] When the first roller 120 rotates, the rotation of the first roller 120 will synchronously drive the rotation of the second roller 130 through the connection between the first reverse wheel group 210 and the first belt 220, ensuring the synchronization and coordination of the rotation of the first roller 120 and the second roller 130.

[0087] When the coating operation is at the starting end of the tile 400, the faster linear speed of the second roller 130 enables the bristles to quickly and evenly spread the glue on the surface of the tile 400, preventing the glue from flowing to the side wall of the starting end of the tile 400.

[0088] When the first roller 120 stops rotating due to being separated from the tile 400, the second roller 130 simultaneously loses power input and quickly stops rotating, preventing glue dragging caused by lagging rotation. Even if the second roller 130 continues to rotate slightly due to inertia, its linear velocity is perpendicular to the end edge of the tile 400. Centrifugal force causes residual glue to be flung out along the tangent line of the bristles, rather than being dragged laterally toward the end wall. At this point, the coating of the tile 400 is complete, and the glue application unit 100 moves forward, preventing the flung glue from contacting the end edge of the tile 400.

[0089] Thus, the rotation center of the first roller 120 is located in front of the rotation center of the second roller 130, which effectively prevents the glue from being applied to the side wall of the tile 400, ensuring the neatness and bonding reliability of the tile 400.

[0090] Further, such as Figure 2-Figure 6 As shown, both ends of the second roller 130 are provided with inclined sections 131 , and the inclined sections 131 are used to limit the glue from overflowing toward the edge of the tile 400 .

[0091] Specifically, as the second roller 130 rotates to perform the coating operation, the glue, carried by the bristles, is applied to the surface of the tile 400. Near the edge of the tile 400, due to centrifugal force and the flow characteristics of the glue, the glue tends to overflow toward the edge of the tile 400. At this time, the inclined sections 131 at both ends of the second roller 130 apply a force component along the inclined surface toward the center of the roller as the glue approaches the roller edge. This redirects the flow of the glue, redirecting any glue that might have overflowed toward the edge of the tile 400 back toward the center of the roller. This effectively limits the glue from overflowing toward the edge of the tile 400 and prevents the glue from coating the left and right sidewalls of the tile 400 during the coating process.

[0092] Therefore, by rotating the second roller 130 at a faster linear speed and providing an inclined section 131 on the second roller 130, there is no excess glue on the side walls of the tiles 400, and the operator can more easily and accurately position and splice the tiles 400, reducing the misalignment and rework of the tiles 400 caused by the influence of the glue, thereby reducing construction costs.

[0093] In one embodiment, when the second roller 130 performs the coating task, in order to achieve a better coating effect, the distance between the second roller 130 and the tile 400 is made closer. During the process of the bristles being in close contact with the surface of the tile 400 and coating the glue, the bristles are affected by the friction force of the surface of the tile 400 and the inertia of their own movement. The bristles will fall in the same direction for a long time, affecting the coating quality and the rough surface quality.

[0094] Based on this, Figure 2-Figure 6 As shown, the differential transmission assembly 200 drives the third roller 140 to rotate in the opposite direction to the second roller 130, and the linear speed of the third roller 140 is greater than the linear speed of the second roller 130, so that the bristles can be arranged in a direction when the third roller 140 rotates.

[0095] Specifically, since the third roller 140 rotates in opposite directions to the second roller 130 and has a faster linear speed than the second roller 130, when the second roller 130 and the third roller 140 are in contact, the surface of the third roller 140 is in contact with the fallen bristles, and a relative force is generated due to the linear speed difference. The third roller 140 straightens the bristles and moves in the opposite direction of the falling, overcoming the falling tendency caused by the coating force and achieving regularity of the bristles.

[0096] Initially, the bristles on the second roller 130 are evenly spaced, providing excellent adhesive dipping and coating capabilities. As the coating process begins, the second roller 130 approaches the tile 400, and the bristles contact the tile 400 surface to begin applying adhesive. Due to the small distance between the second roller 130 and the tile 400, friction causes the bristles to gradually bend toward the uncoated area. Simultaneously, as the second roller 130 begins reverse rotation, the third roller 140 begins forward rotation at a faster linear speed. The surface of the third roller 140 contacts the fallen bristles, causing them to straighten and move in the opposite direction of their fall.

[0097] Therefore, by setting the third roller 140 to rotate forward at a faster linear speed, the bristles can be adjusted in time so that the bristles can be evenly dipped in and spread with the glue.

[0098] In one embodiment, Figure 5-10 As shown, the differential transmission assembly 200 includes a second reverse wheel set 230 and a second belt 240 . The second reverse wheel set 230 and the second belt 240 enable the second roller 130 to drive the third roller 140 to rotate.

[0099] Specifically, to enable the second roller 130 and the third roller 140 to rotate in opposite directions, the second reverse wheel set 230 includes a third rotating wheel 231, a fourth rotating wheel 232, and a second fixed wheel 233. Synchronous wheels 234 are fixedly connected to both ends of the third roller 140, and the synchronous wheels 234 rotate synchronously with the third roller 140.

[0100] The third rotating wheel 231 is fixedly connected to both ends of the second roller 130, and they rotate synchronously. The fourth rotating wheel 232 is rotatably connected to both ends of the third roller 140. The second fixed wheel 233 is tightly abutted between the fourth rotating wheel 232 and the synchronous wheel 234 to facilitate force transmission and steering adjustment. The second belt 240 is looped around the third rotating wheel 231 and the fourth rotating wheel 232, and they rotate in the same direction.

[0101] When the gluing unit 100 begins coating and the second roller 130 begins to rotate in the reverse direction, the second belt 240 is wound around the third rotating wheel 231 and the fourth rotating wheel 232, causing the third rotating wheel 231 and the second roller 130 to rotate synchronously. The third rotating wheel 231 transmits the reverse rotation of the second roller 130 to the fourth rotating wheel 232 via the second belt 240, thereby driving the fourth rotating wheel 232 to rotate in the reverse direction. At this time, the reverse rotation of the fourth rotating wheel 232 exerts a tangential force on the second fixed wheel 233 abutting it. Under the action of this force, the second fixed wheel 233 begins to rotate in the reverse direction about its own central axis. The reverse rotation of the second fixed wheel 233 further drives the synchronous wheel 234 abutting it to rotate in the forward direction. Since the third roller 140 rotates synchronously with the synchronous wheel 234, the third roller 140 also rotates in the forward direction.

[0102] In order to make the linear speed of the third roller 140 greater than the linear speed of the second roller 130 , the diameter of the third roller 140 is made greater than the diameter of the synchronous wheel 234 .

[0103] Because linear velocity and diameter are positively correlated, i.e., at the same angular velocity, a larger diameter results in a greater linear velocity, the third rotating wheel 231 and the second roller 130 rotate synchronously, i.e., at the same angular velocity. This ensures that the diameter of the third rotating wheel 231 is equal to the diameter of the second roller 130, i.e., the linear velocities are the same.

[0104] The second belt 240 is in contact with the outer wall of the third rotating wheel 231 and the fourth rotating wheel 232. The third rotating wheel 231 drives the fourth rotating wheel 232 to rotate through the second belt 240. The linear velocity of the outer periphery of the fourth rotating wheel 232 is equal to the linear velocity of the third rotating wheel 231, that is, the linear velocity of the outer periphery of the fourth rotating wheel 232 is equal to the linear velocity of the second roller 130.

[0105] The outer wall diameter of the fourth rotating wheel 232 is larger than the inner wall diameter of the fourth rotating wheel 232 , and the linear velocity of the inner circumference of the fourth rotating wheel 232 is lower than the linear velocity of the outer circumference of the fourth rotating wheel 232 , that is, the linear velocity of the inner circumference of the fourth rotating wheel 232 is lower than the linear velocity of the second roller 130 .

[0106] The second fixed wheel 233 is in contact with the inner circumferential wall of the fourth rotating wheel 232 and the synchronous wheel 234. The fourth rotating wheel 232 drives the synchronous wheel 234 to rotate forward through the second fixed wheel 233. At this time, the linear velocity of the inner circumference of the fourth rotating wheel 232 is equal to the linear velocity of the synchronous wheel 234, that is, the linear velocity of the synchronous wheel 234 is less than the linear velocity of the second roller 130.

[0107] Since the third roller 140 and the synchronous wheel 234 rotate synchronously, that is, the angular velocities of the third roller 140 and the synchronous wheel 234 are equal, the diameter of the third roller 140 is larger than that of the synchronous wheel 234, and the linear velocity of the third roller 140 is larger than that of the synchronous wheel 234.

[0108] In summary, the linear velocity of the outer periphery of the fourth rotating wheel 232 is equal to the linear velocity of the second roller 130, the linear velocity of the inner periphery of the fourth rotating wheel 232 is less than the linear velocity of the second roller 130, the linear velocity of the synchronous wheel 234 is less than the linear velocity of the second roller 130, and the linear velocity of the third roller 140 is greater than the linear velocity of the synchronous wheel 234.

[0109] Therefore, by making the diameter of the third roller 140 larger than the diameter of the synchronous wheel 234 , the linear speed of the third roller 140 can be greater than the linear speed of the second roller 130 .

[0110] For example, assuming the linear velocity of the second roller 130 is 6 and the diameter of the second roller 130 is 6, the linear velocity of the third rotating wheel 231 is 6 and the diameter of the third rotating wheel 231 is 6. The linear velocity of the outer periphery of the fourth rotating wheel 232 is equal to the linear velocity of the third rotating wheel 231, which is 6.

[0111] The diameter of the outer wall of the fourth rotating wheel 232 is 3, and the diameter of the inner wall of the fourth rotating wheel 232 is 2, that is, the diameter ratio of the inner wall to the outer wall of the fourth rotating wheel 232 is 2:3. At this time, the linear velocity of the inner circumference of the fourth rotating wheel 232 is 4, that is, the linear velocity of the synchronous wheel 234 is 4.

[0112] The diameter of the synchronous wheel 234 is 1, the diameter of the third roller 140 is 4, and the diameter ratio of the third roller 140 to the synchronous wheel 234 is 4:1. At this time, the linear speed of the third roller 140 is 16. Obviously, the linear speed of the third roller 140 is greater than the linear speed of the second roller 130.

[0113] Thus, through the second reverse wheel assembly 230 and the second belt 240, when the second roller 130 rotates in the reverse direction, it can drive the third roller 140 to rotate in the forward direction, thereby achieving a rotation direction conversion relationship between the second roller 130 and the third roller 140. The linear velocity of the third roller 140 is greater than the linear velocity of the second roller 130 by setting the diameter difference between the third roller 140 and its rotating shaft.

[0114] It is understood that the positional relationship and diameter relationship between the second belt 240 and the third rotating wheel 231, the fourth rotating wheel 232, and the second fixed wheel 233 in the second counter-rotating wheel set 230 can be varied. For example, the third rotating wheel 231, the fourth rotating wheel 232, and the second fixed wheel 233 can all be located at both ends of the second roller 130, with the third rotating wheel 231 located on the rotation axis of the second roller 130, the fourth rotating wheel 232 coaxially disposed with the second roller 130, and the diameter of the fourth rotating wheel 232 equal to the diameter of the second roller 130. The second fixed wheel 233 can be located between the third rotating wheel 231 and the fourth rotating wheel 232. The second belt 240 is wound around the rotation axis of the fourth rotating wheel 232 and the third roller 140. Thus, the positional relationship between the third rotating wheel 231, the fourth rotating wheel 232, and the second fixed wheel 233 enables the first roller 120 to drive the second roller 130 in reverse rotation. By setting a diameter difference between the third roller 140 and its rotation shaft, the linear speed of the third roller 140 is made greater than the linear speed of the second roller 130 .

[0115] However, the positional relationship and diameter relationship between the third rotating wheel 231, the fourth rotating wheel 232 and the second fixed wheel 233 in the second belt 240 and the second reverse wheel group 230 should satisfy that the second roller 130 and the third roller 140 rotate in opposite directions and the linear velocity of the third roller 140 is greater than the linear velocity of the second roller 130.

[0116] In one embodiment, Figure 4-Figure 8 As shown, in order to enable the gluing execution unit 100 to adapt to tiles 400 of various sizes, the coating equipment includes an adjusting device 300 , which is used to enable the gluing execution unit 100 to adapt to the thickness and length of different tiles 400 .

[0117] Specifically, the adjustment device 300 includes a spacing adjustment module 310, which is used to adjust the spacing between the first roller 120 and the second roller 130 to adapt to tiles 400 of different thicknesses. The spacing adjustment module 310 is provided with a tension component 320, which is used to adjust the tension of the first belt 220 so that the glue execution unit 100 can operate stably.

[0118] The spacing adjustment module 310 includes a first slider 311 and a first slot 312. The first slider 311 is movable vertically within the first slot 312. The first slider 311 is fixedly connected to both ends of the rotating shaft of the first roller 120. The first slot 312 is vertically disposed at the connection point between the first roller 120 and the fixed frame 110, allowing the first slider 311 to fit into the first slot 312.

[0119] When the distance between the first roller 120 and the second roller 130 needs to be adjusted to accommodate tiles 400 of different thicknesses, the first sliding block 311 is moved in the first sliding groove 312 along the vertical direction.

[0120] The tension assembly 320 includes a second slider 321 and a second slot 322. The second slider 321 abuts the first belt 220 and is capable of horizontal movement within the second slot 322. The second slot 322 is horizontally disposed on the mounting frame 110 between the first roller 120 and the second roller 130. One end of the second slider 321 is inserted into the slot 322, while the other end abuts the first belt 220.

[0121] When the spacing adjustment module 310 adjusts the vertical position of the first roller 120, the change in wheelbase will affect the tension of the first belt 220. At this time, the tension assembly 320 horizontally moves the second slider 321 to press against the position of the first belt 220, restore the tension force, and ensure the accuracy of the transmission of the first reverse wheel group 210 and the first belt 220.

[0122] Furthermore, the adjusting device 300 further includes a telescopic assembly 330 , which is used to rotate and connect the second rollers 130 of different lengths so that the gluing execution unit 100 can adapt to tiles 400 of different widths.

[0123] The telescopic assembly 330 is located inside the second roller 130 and includes an inner rod 331 and an outer tube 332. The inner rod 331 is freely retractable within the outer tube 332. One end of the inner rod 331 is fixedly mounted on the fixed frame 110, and the other end of the inner rod 331 is slidably connected to the interior of one end of the outer tube 332. The other end of the outer tube 332 is fixedly mounted on the fixed frame 110.

[0124] When tiles 400 of different lengths need to be coated, the operator selects second rollers 130 of different lengths according to the length of the tiles 400, and then pulls out or pushes the inner rod 331 from the outer tube 332, so that the fixing frame 110 can connect the second rollers 130 of different lengths and adapt to tiles 400 of different lengths.

[0125] Therefore, by providing the adjustment device 300, the coating equipment can adapt to tiles 400 of different sizes, thereby improving the versatility and practicality of the coating equipment.

[0126] Furthermore, the adjusting device 300 includes a locking structure, which is used to maintain the positional relationship between the components after adjustment of the spacing adjustment module 310 and the telescopic assembly 330, thereby improving the stability of the gluing execution unit 100 during operation.

[0127] It is understood that the locking structure can be a common mechanical locking form, such as bolt locking, snap locking, hydraulic locking, etc. The locking method in the locking structure can be centralized, using a single locking element to lock the adjustment position of the spacing adjustment module 310 and the telescopic assembly 330 as a whole; or the locking method can be decentralized, using multiple independent locking elements to lock the position of each adjustment component separately, to meet different adjustment accuracy and working conditions.

[0128] In one embodiment, Figure 5-Figure 9 As shown, the gluing execution unit 100 includes a positioning block 150 , which is located at the travel end of the gluing execution unit 100 to limit the initial positions of the gluing execution unit 100 and the tile 400 .

[0129] Specifically, the positioning block 150 is located in front of the second roller 130 on the fixing frame 110 . When the coating operation is performed, the positioning block 150 can be fitted with the adhesive surface of the tile 400 .

[0130] When the gluing unit 100 approaches the tile 400, the positioning block 150 at the end of its travel first contacts the tile 400. The positioning block 150 and the first roller 120 form a tight and precise positioning fit with the tile 400. The positioning block 150 ensures that the gluing unit 100 maintains its initial vertical position throughout its travel.

[0131] Therefore, by setting the positioning block 150, the initial position of the gluing execution unit 100 and the tile 400 is accurately limited, so that tiles 400 of the same size can start at the same and accurate starting position in multiple gluing operations, effectively avoiding problems such as uneven back glue coating due to starting position deviation.

[0132] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0133] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An automatic coating equipment for tile adhesive, characterized in that: include: A glue application unit, comprising a first roller, a second roller, and a third roller. During the process of applying glue to the tiles, the first roller is in close contact with the tiles to maintain a distance between the second roller and the tiles. The second roller is detachably provided with bristles, which are used to apply glue to the tiles. A glue storage area is formed between the third roller and the second roller, and the glue storage area is used to accommodate glue liquid. a differential transmission assembly, wherein the differential transmission assembly drives the first roller and the second roller to rotate in opposite directions, and makes the linear speed of the first roller smaller than the linear speed of the second roller; The differential transmission assembly includes a first reverse wheel set and a first belt, and the first reverse wheel set and the first belt are used to enable the first roller to drive the second roller to rotate; the differential transmission assembly drives the third roller in a direction opposite to the rotation direction of the second roller, and makes the linear speed of the third roller greater than the linear speed of the second roller, so that the bristles can be arranged in a direction when the third roller rotates.

2. The automatic coating equipment for tile adhesive according to claim 1, characterized in that: Along the traveling direction of the gluing execution unit when it is working, the rotation center of the first roller is located in front of the rotation center of the second roller.

3. The automatic coating equipment for tile adhesive according to claim 1, characterized in that: Both ends of the second roller are arranged as inclined sections, and the inclined sections are used to limit the glue from overflowing toward the edge of the tile.

4. The automatic coating equipment for tile adhesive according to claim 1, characterized in that: The differential transmission assembly includes a second reverse wheel set and a second belt, and the second reverse wheel set and the second belt are used to enable the second roller to drive the third roller to rotate.

5. The automatic coating equipment for tile adhesive according to claim 1, characterized in that: It includes an adjustment device, which includes a spacing adjustment module and a telescopic component. The spacing adjustment module is used to adjust the spacing between the first roller and the second roller to adapt to tiles of different thicknesses. The spacing adjustment module is provided with a tension component, and the tension component is used to adjust the tension of the first belt. The telescopic component is used to rotate the second rollers connected with different lengths so that the glue execution unit can adapt to tiles of different widths.

6. The automatic coating equipment for tile adhesive according to claim 5, characterized in that: The spacing adjustment module includes a first slider and a first slide groove, the first slider can move in the first slide groove in a vertical direction, the tension assembly includes a second slider and a second slide groove, the second slider abuts against the first belt, and the second slider can move in the second slide groove in a horizontal direction.

7. The automatic coating equipment for tile adhesive according to claim 5, characterized in that: The telescopic assembly includes an inner rod and an outer tube. The inner rod and the outer tube are located inside the second roller and can slide relative to each other.

8. An automatic coating equipment for tile adhesive according to any one of claims 1 to 7, characterized in that: The gluing execution unit includes a positioning block, which is located at the travel end of the gluing execution unit to limit the initial position of the gluing execution unit and the tile.

Images