A roller printing machine capable of being used for very wide formats

Abstract

The scheme discloses a kind of can be used for super large width's roller printing machine, main device includes positioning device, roller printing device, positioning device is by clamping plate, guide rail, connecting rod is formed, roller printing device contains motor, reduction gearbox, coupling, roller, ink box, ink groove and doctor knife are equipped above roller, drying solidification component contains ultraviolet lamp and control module, each device is independently assembled.When running, the ceramic plate to be printed is clamped and positioned by the positioning device, and then moved to the roller by the conveying mechanism; the motor drives the roller to rotate, the glaze in the ink box is supplied to the roller through the ink groove, the excess material is scraped off by the doctor knife, and the pattern is transferred to the ceramic by the roller; finally, the ceramic is cured by the ultraviolet lamp.The advantages of this scheme are: accurate positioning to avoid ceramic deviation, ensure printing accuracy; uniform glaze supply, consistent pattern color; ultraviolet curing does not require high temperature, prevents ceramic damage, and each device is independently adjustable, balances efficiency and quality, and meets the production needs of super large width ceramic.

Description

Technical Field

[0001] This utility model relates to the field of production, specifically to a roller printing machine that can be used for ultra-large width printing. Background Technology

[0002] With the development of the ceramic decoration industry, the market demand for ultra-large wide ceramic flat plates is increasing. These ceramic flat plates require roller printing technology to achieve high-precision and uniform surface pattern decoration. Currently, most ceramic printing equipment is designed for standard widths. When adapting to ultra-large wide ceramics, it often faces problems such as positioning misalignment, uneven glaze delivery, and low curing efficiency, making it difficult to meet the large-scale, high-quality production requirements of ultra-large wide ceramics. Therefore, developing a roller printing machine that can adapt to ultra-large wide ceramics and also features precise positioning, uniform printing, and efficient curing has become a key requirement for the ceramic processing industry.

[0003] Traditional recycling devices have two obvious drawbacks: First, they lack a stable sliding guide structure, which makes the clamps prone to jamming when sliding, causing the ceramics to shift back and forth during the conveying process, ultimately resulting in misaligned printed patterns and a low finished product qualification rate. Second, traditional curing devices are mostly high-temperature drying type, which not only easily causes the ceramics to crack and deform due to high temperature, but also has a slow curing speed that cannot match the printing rhythm. In addition, they lack integrated equipment and parameter adjustment is cumbersome. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a roller printing machine that can be used for ultra-large widths. The design is as follows: during operation, after the ceramic plate to be printed is clamped and positioned by the positioning device, it moves to the roller with the conveying mechanism. The motor drives the roller to rotate, and the roller transfers the pattern to the ceramic.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a roller printing machine capable of operating on ultra-large widths, comprising a frame, wherein multiple sets of support rollers are arranged inside the frame, the axes of each set of support rollers are parallel to each other, and both ends of the support rollers are rotatably connected to the inner sidewall of the frame via high-temperature bearings; a positioning assembly is provided at the feed end of the frame; a roller printing device is provided in the middle of the frame directly above the support rollers; and an ultraviolet lamp assembly is provided at the discharge end of the frame. The positioning assembly includes a base, which is fixedly installed on the inner bottom of the feed end of the frame. The top surface of the base is provided with two parallel guide rails, and a set of clamping plates are slidably connected to each of the two guide rails. The two sets of clamping plates are located on the front and rear sides of the ceramic conveying path, respectively. A turntable is rotatably installed at the center of the base. Rods are fixedly installed at both ends of the turntable in the left-right direction. The two sets of rods are symmetrically distributed about the central axis of the turntable. A horizontal bar extending in the left-right direction is fixedly connected to the inner side of each set of clamping plates. The end of each set of rods away from the turntable is hinged to the middle of the horizontal bar through a connecting rod. The roller printing device includes a housing, inside which a motor is fixedly installed. The motor output shaft is fixedly connected to the input end of a reducer via a flange. The reducer is fixed to a mounting plate inside the housing by bolts, and the output end of the reducer is engaged with one end of a coupling. A bearing hole is provided on the side wall of the housing near the reducer. The other end of the coupling passes through the bearing hole and is fixedly connected to the roller. A doctor blade is provided above the roller, and the length of the doctor blade is the same as the length of the roller. The doctor blade is fixedly connected to the outer wall of the housing via a fixed bracket. The blade of the doctor blade faces the surface of the roller and is in close contact with the surface of the roller. An ink supply groove is provided directly above the doctor blade. The ink supply groove is a long strip groove with a length the same as the length of the doctor blade. The ink supply groove is fixed to the outer wall of the housing by a support rod and is connected to an ink cartridge via an ink supply pipe.

[0006] Furthermore, the surface of the support roller is coated with a wear-resistant ceramic coating with a thickness of 1 mm, and the coating surface is polished.

[0007] Furthermore, the lamp holder of the ultraviolet lamp assembly is equipped with a lamp cover made of quartz glass, and a sealing strip is provided between the lamp cover and the lamp holder. The lamp cover can be flipped open to facilitate the replacement and cleaning of the ultraviolet lamp.

[0008] Furthermore, the bottom of the ink supply tank is provided with uniformly distributed ink outlet holes along the length direction, the diameter of the ink outlet holes is 1.5mm, and the ink supply tank is provided with a filter screen with a mesh size of 300 mesh.

[0009] Furthermore, a control panel is fixedly installed on the outer wall of the housing. The control panel is electrically connected to the motor via wiring and is equipped with a power switch, a speed adjustment knob, and a running indicator light.

[0010] Furthermore, the conveyor belt is made of high-temperature resistant polytetrafluoroethylene, and the surface of the conveyor belt is provided with anti-slip texture with a texture depth of 0.3mm.

[0011] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. The solution can adjust the spacing of the clamping plates via a turntable, flexibly adapting to ultra-wide ceramics of different widths, fundamentally solving the problems of positioning offset and pattern misalignment of wide ceramics in existing technologies, and significantly improving the finished product qualification rate.

[0012] 2. This solution uses ultraviolet curing instead of high-temperature drying, which not only prevents ceramics from cracking and deforming, but also speeds up the curing process and is compatible with the printing rhythm. In addition, the integrated control panel design of the cabinet facilitates equipment maintenance and parameter adjustment, solving the problems of inconvenient maintenance and poor production continuity of the existing technology. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a roller printing machine capable of being used for ultra-large width printing according to the present invention; Figure 2 This is a schematic diagram of the positioning component structure of this utility model; Figure 3 This is a schematic diagram of the roller printing device of this utility model; Figure 4 This is a schematic diagram of the structure of this practical ink cartridge.

[0014] In the diagram: 1. Frame; 2. Support roller; 3. Positioning assembly; 301. Base; 302. Guide rail; 303. Clamping plate; 304. Turntable; 305. Rod; 306. Crossbar; 307. Connecting rod; 4. Roller printing device; 401. Housing; 402. Motor; 403. Reducer; 404. Coupling; 405. Roller; 406. Doctor blade; 407. Ink supply tank; 408. Ink cartridge; 5. Ultraviolet lamp assembly. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 This embodiment describes a roller printing machine suitable for ultra-wide widths, comprising a frame 1, with multiple sets of support rollers 2 inside the frame 1. The axes of each set of support rollers 2 are parallel to each other, and both ends of the support rollers 2 are rotatably connected to the inner sidewall of the frame 1 via high-temperature bearings. A positioning assembly 3 is provided at the feed end of the frame 1, a roller printing device 4 is provided in the middle of the frame 1 directly above the support rollers 2, and an ultraviolet lamp group 5 is provided at the discharge end of the frame 1. The positioning component 3 includes a base 301, which is fixedly installed on the inner bottom of the feed end of the frame 1. The top surface of the base 301 is provided with two parallel guide rails 302. A set of clamping plates 303 are slidably connected to the two guide rails 302 respectively. The two sets of clamping plates 303 are located on the front and rear sides of the ceramic conveying path respectively. A turntable 304 is rotatably installed at the center of the base 301. Rods 305 are fixedly installed at both ends of the turntable 304 in the left and right directions. The two sets of rods 305 are symmetrically distributed about the central axis of the turntable 304. A horizontal bar 306 extending in the left and right directions is fixedly connected to the inner side of each set of clamping plates 303. The end of each set of rods 305 away from the turntable 304 is hinged to the middle of the horizontal bar 306 through a connecting rod 307. The roller printing device 4 includes a housing 401, inside which a motor (402) is fixedly installed. The output shaft of the motor 402 is fixedly connected to the input end of a reducer 403 via a flange. The reducer 403 is fixed to a mounting plate inside the housing 401 by bolts. The output end of the reducer 403 is engaged with one end of a coupling 404. A bearing hole is provided on the side wall of the housing 401 near the reducer 403. The other end of the coupling 404 passes through the bearing hole and is fixedly connected to a roller 405. A roller 405 is provided above the roller 405. The doctor blade 406 has the same length as the roller 405. The doctor blade 406 is fixedly connected to the outer wall of the housing 401 through a fixed bracket. The blade of the doctor blade 406 faces the surface of the roller 405 and is in close contact with the surface of the roller 405. An ink supply groove 407 is provided directly above the doctor blade 406. The ink supply groove 407 is a long strip groove with the same length as the doctor blade 406. The ink supply groove 407 is fixed to the outer wall of the housing 401 by a support rod. The ink supply groove 407 is connected to the ink cartridge 408 through an ink supply pipe.

[0017] The support roller 2 has a wear-resistant ceramic coating on its surface, with a thickness precisely controlled at 1mm. The coating surface undergoes professional polishing, significantly improving its smoothness. A conveyor belt is fitted around the outside of the support roller 2, directly contacting the wear-resistant ceramic coating to jointly transport the ceramic plate. This structure, with the wear-resistant ceramic coating on the support roller 2 and the outer conveyor belt, serves two purposes: firstly, the ceramic coating significantly enhances the wear resistance of the support roller 2 surface, effectively resisting frictional wear caused by the long-term rotation of the conveyor belt, preventing premature wear and pitting, and extending the service life of the support roller 2; secondly, the polished coating reduces frictional resistance with the conveyor belt, making the conveyor belt rotate more smoothly with the support roller 2, preventing belt deviation or accelerated wear due to excessive friction. Simultaneously, the smooth rotation of the support roller 2, in contact with the conveyor belt, indirectly ensures that the ceramic plate does not wobble or shift during transport, preventing scratches on the ceramic plate surface due to uneven friction with the conveyor belt, and providing a stable foundation for precise positioning and pattern transfer in subsequent printing processes. The UV lamp assembly 5 is equipped with a dedicated lampshade mounted on its lamp holder. This lampshade is made of high-quality quartz glass, and a sealing strip is installed at the connection between the lampshade and the lamp holder. The lampshade is designed to be flip-open, facilitating easy replacement and cleaning of the UV lamps. This UV lamp assembly 5, with its flip-open quartz glass lampshade, utilizes the excellent light transmittance of quartz glass to minimize UV ​​obstruction, ensuring UV irradiation intensity and improving the curing effect after ceramic printing. The sealing strip effectively prevents external dust and impurities from entering the lamp holder, protecting the UV lamps from contamination and maintaining stable operation. The flip-open design greatly simplifies the replacement and cleaning process of the UV lamps, reduces maintenance difficulty for operators, minimizes equipment downtime for maintenance, and improves overall production efficiency. The bottom of the ink supply tank 407 has multiple ink outlet holes evenly distributed along its length. The diameter of these holes is uniformly set at 1.5mm. A filter screen with a mesh size of 300 is also installed inside the ink supply tank 407. This ink supply tank 407, with its specific diameter ink outlet holes and high-mesh filter, ensures that the 1.5mm ink outlet holes guarantee a stable and uniform flow of glaze, preventing uneven glaze distribution on the roller 405 surface due to excessive or insufficient ink flow, thus ensuring consistent color in the ceramic printed pattern. The 300-mesh filter effectively removes impurities and particles from the glaze, preventing impurities from clogging the ink outlet holes or adhering to the roller 405 surface, avoiding problems such as insufficient ink, ink breaks, or pattern defects during the printing process, and improving the quality of the finished ceramic printed product. A control panel is fixedly installed on the outer wall of the housing 401. This control panel is electrically connected to the motor 402 via a dedicated circuit. The control panel also includes a power switch, a speed adjustment knob, and a running indicator light. Using this housing 401 with an integrated control panel, operators can conveniently control the start and stop of the motor 402 via the power switch, eliminating the need for frequent contact with internal components and reducing operational risks. The speed adjustment knob precisely adjusts the output speed of the motor 402, thereby controlling the rotation speed of the roller 405, adapting to the printing needs of different ceramic plates and improving the equipment's versatility. The running indicator light displays the real-time operating status of the motor 402, allowing operators to promptly monitor the equipment's operation and quickly detect and address any abnormalities, ensuring stable equipment operation. The conveyor belt equipped with the equipment is made of high-temperature resistant polytetrafluoroethylene (PTFE), and its surface is embossed with anti-slip textures, with a depth of 0.3mm. This high-temperature resistant, anti-slip conveyor belt utilizes the excellent high-temperature resistance of PTFE, adapting to the temperature environment of the ceramic printing process. This prevents deformation and damage to the conveyor belt due to high temperatures, extending its service life. The anti-slip texture effectively increases the friction between the conveyor belt and the ceramic plate, preventing the ceramic plate from sliding or shifting during transport due to vibration, tilting, or other factors. This ensures the ceramic plate is accurately delivered to the designated workstation, guaranteeing the smooth operation of subsequent processes such as positioning and printing.

[0018] In summary, during operation, the roller printing machine first precisely positions the ceramic plate using a positioning structure at the feeding end, ensuring its stability along the conveyor path. The ceramic plate then moves along with support rollers fitted with a conveyor belt, transporting it to the roller printing device in the middle of the equipment. The motor of the roller printing device drives the rollers via a reducer and coupling, while the ink supply trough supplies glaze to the roller surface through ink outlets at the bottom. A doctor blade evenly spreads the glaze on the roller surface, allowing the rollers to accurately transfer the pattern onto the ceramic plate. The printed ceramic plate continues to move along the conveyor belt to the ultraviolet lamp assembly at the discharge end, where the ultraviolet lamps cure the glaze on the ceramic surface, ultimately completing the entire printing process for the extra-large wide ceramic plate. Each step is controlled via a control panel for start / stop and parameter adjustment, ensuring coordinated operation.

[0019] This solution boasts multiple advantages in its technical design: First, the positioning and conveying structure is highly adaptable. The wear-resistant ceramic coating on the support roller surface, combined with the outer conveyor belt, reduces friction loss, extends the service life of components, and ensures stable conveying of ceramic plates, preventing deviation and scratches. Second, it balances printing quality and efficiency. The specific aperture of the ink outlet in the ink supply trough and the high-mesh filter ensure uniform and impurity-free glaze supply. The rotation of the rollers and the doctor blade work together to achieve high-precision printing, while the ultraviolet lamp group quickly completes curing, avoiding damage to the ceramics from high temperatures. Third, it is convenient to operate and maintain. The integrated control panel facilitates precise adjustment of equipment parameters, and the flip-up lamp cover and box structure design reduce the difficulty of component replacement and maintenance, thus improving the overall practicality and production continuity of the equipment and effectively meeting the high-quality, large-scale production needs of ultra-large wide ceramic plates.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roller printing machine capable of being used for ultra-wide width printing, comprising a frame (1), characterized in that: The frame (1) is equipped with multiple sets of support rollers (2), the axes of each set of support rollers (2) are parallel to each other, and both ends of the support rollers (2) are rotatably connected to the inner sidewall of the frame (1) through high temperature bearings. The feed end of the frame (1) is equipped with a positioning component (3). The middle part of the frame (1) is equipped with a roller printing device (4) located directly above the support rollers (2). The discharge end of the frame (1) is equipped with an ultraviolet lamp group (5). The positioning component (3) includes a base (301), which is fixedly installed on the inner bottom of the feed end of the frame (1). The top surface of the base (301) is provided with two parallel guide rails (302). A set of clamping plates (303) are slidably connected on the two guide rails (302), which are located on the front and rear sides of the ceramic conveying path, respectively. A turntable (304) is rotatably installed at the center of the base (301). Rods (305) are fixedly installed at both ends of the turntable (304) along the left and right directions. The two sets of rods (305) are symmetrically distributed about the central axis of the turntable (304). A horizontal bar (306) extending in the left and right directions is fixedly connected to the inner side of the two sets of clamping plates (303). The end of each set of rods (305) away from the turntable (304) is hinged to the middle of the horizontal bar (306) through a connecting rod (307). The roller printing device (4) includes a housing (401), inside which a motor (402) is fixedly installed. The output shaft of the motor (402) is fixedly connected to the input end of a reducer (403) via a flange. The reducer (403) is fixed to a mounting plate inside the housing (401) by bolts. The output end of the reducer (403) is engaged with one end of a coupling (404). A bearing hole is provided on the side wall of the housing (401) near the reducer (403). The other end of the coupling (404) passes through the bearing hole and is fixedly connected to a roller (405). A scraper is provided above the roller (405). The ink knife (406) has the same length as the roller (405). The ink knife (406) is fixedly connected to the outer wall of the housing (401) through a fixed bracket. The blade of the ink knife (406) faces the surface of the roller (405) and is in close contact with the surface of the roller (405). An ink supply groove (407) is provided directly above the ink knife (406). The ink supply groove (407) is a long strip groove with the same length as the ink knife (406). The ink supply groove (407) is fixed to the outer wall of the housing (401) by a support rod. The ink supply groove (407) is connected to the ink cartridge (408) through an ink supply pipe.

2. The roller printing machine for ultra-wide width printing according to claim 1, characterized in that: The surface of the support roller (2) is covered with a wear-resistant ceramic coating with a thickness of 1 mm and the coating surface is polished.

3. A roller printing machine for ultra-wide width printing according to claim 1, characterized in that: The ultraviolet lamp assembly (5) has a lamp cover on its lamp holder. The lamp cover is made of quartz glass and a sealing strip is provided between the lamp cover and the lamp holder. The lamp cover can be flipped open to facilitate the replacement and cleaning of the ultraviolet lamp.

4. A roller printing machine for ultra-wide width printing as described in claim 1, characterized in that: The bottom of the ink supply tank (407) is provided with uniformly distributed ink outlet holes along the length direction. The diameter of the ink outlet holes is 1.5 mm. The ink supply tank (407) is provided with a filter screen with a mesh size of 300 mesh.

5. A roller printing machine for ultra-wide width printing according to claim 1, characterized in that: A control panel is fixedly installed on the outer wall of the housing (401). The control panel is electrically connected to the motor (402) via a line. The panel is equipped with a power switch, a speed adjustment knob and a running indicator light.

6. A roller printing machine for ultra-wide width printing according to claim 1, characterized in that: A conveyor belt is fitted on the outside of the support roller (2). The conveyor belt is made of high-temperature resistant polytetrafluoroethylene and has anti-slip texture on its surface with a texture depth of 0.3 mm.

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