Label printing roller scraping and cleaning device

Abstract

The utility model relates to the technical field of label printing equipment, in particular to a label printing roller scraping and cleaning device which comprises a fixing seat, a cleaning mechanism is detachably connected to the fixing seat, the cleaning mechanism comprises a mounting seat, the mounting seat is detachably connected with the fixing seat, a cleaning shell is arranged on the mounting seat, and the cleaning shell is detachably connected with the fixing seat. A cleaning cavity is formed between the cleaning shell and the scraping block, a conveying mechanism capable of injecting water or spraying air into the cleaning cavity is arranged in the cleaning shell, the wedge-shaped scraping block is tightly attached to the printing roller, residual materials on the surface can be efficiently scraped off, and the cleaning effect of the cleaning sponge and the flushing and blow-drying functions of water or air are matched. According to the printing roller cleaning device, the printing roller can be cleaned comprehensively and deeply, flexible switching of multiple cleaning modes such as water injection cleaning, air injection drying and heating drying is achieved, the most appropriate cleaning mode can be selected according to the pollution degree of the printing roller and the actual cleaning requirement, and the adaptability and practicability of the device are greatly improved.

Description

Technical Field

[0001] This application relates to the field of label printing equipment technology, and in particular to a label printing roller scraping and cleaning device. Background Technology

[0002] In the modern label printing industry, printing rollers are one of the key components for achieving high-quality printing. As the printing operation continues, a large amount of ink, pigments, paper scraps and other impurities will inevitably adhere to the surface of the printing rollers. The accumulation of these residual materials will not only seriously affect the printing quality, causing problems such as blurry label patterns, color deviations and reduced text clarity, but will also damage the printing rollers themselves and shorten their service life.

[0003] Traditional cleaning methods mostly rely on manual operation, such as using simple tools like rags and scrapers to wipe and scrape. This method is extremely inefficient, labor-intensive, and it is difficult to ensure that residual material on the printing roller surface is completely removed. In addition, manual cleaning is prone to causing physical damage such as scratches and wear to the printing roller surface due to improper operation, further affecting the performance of the printing roller and printing quality. Although some existing cleaning devices have achieved a certain degree of automation, they still have many shortcomings. Some devices only use a single scraping structure, lacking effective collection and treatment measures for the scraped material, resulting in material scattering, which not only pollutes the working environment but may also re-adhere to the printing roller, causing secondary pollution and reducing the cleaning effect. Moreover, these devices often cannot flexibly perform multiple operations such as wet cleaning, drying, and deep cleaning of the printing roller according to actual needs. Their functions are relatively limited and cannot meet the requirements of modern label printing industry for efficient and high-quality cleaning.

[0004] In summary, a label printing roller scraping and cleaning device has been developed that can efficiently clean residual materials on label printing rollers, while also having material collection functions and diverse cleaning operation modes. Utility Model Content

[0005] In order to efficiently clean residual material from label printing rollers and collect scraped material from the label printing rollers, this application provides a label printing roller scraping and cleaning device.

[0006] This application provides a label printing roller scraping and cleaning device, which adopts the following technical solution: it includes a fixed base, wherein a rotatable printing roller is arranged in the middle of the fixed base, and a cleaning mechanism is detachably connected to the fixed base. The cleaning mechanism includes a mounting base, which is detachably connected to the fixed base. A scraper block that can contact the surface of the printing roller is arranged on the mounting base. The scraper block is wedge-shaped. A cleaning shell is arranged on the mounting base. The lower side of the cleaning shell is grooved. A cleaning cavity is formed between the cleaning shell and the scraper block. A conveying mechanism that can inject water or air into the cleaning cavity is arranged inside the cleaning shell. A collection hopper is arranged at the bottom of the scraper block. Drainage ports that can communicate with the collection hopper are respectively opened on both sides of the cleaning cavity.

[0007] Optionally, the conveying mechanism includes a conveying chamber disposed inside the cleaning shell. An air pump is connected to one side of the top of the conveying chamber, and a water pump is connected to the other side of the top of the conveying chamber. The air pump and the water pump are selectively connected to the conveying chamber. Several conveying holes communicating with the inner cavity of the cleaning chamber are opened at the bottom of the conveying chamber.

[0008] Optionally, an air inlet communicating with the conveying cavity is provided on one side of the conveying cavity, and a water inlet communicating with the conveying cavity is provided on the other side of the conveying cavity. The conveying cavity is provided with a control mechanism that can close the communication state of the air inlet or the water inlet.

[0009] Optionally, the control mechanism includes a movable plate slidably connected within the conveying cavity. A first motor is mounted on the top of the conveying cavity, and a rotatable rotating screw is mounted on the output end of the first motor. The rotating screw is threadedly connected to the movable plate. Side plates are respectively provided on both sides of the movable plate, and connecting holes are provided on the side plates to communicate with the corresponding air inlet or water inlet. The two connecting holes are located at different heights on the side plates, and the connecting holes are selectively connected to one of the corresponding air inlet or water inlet.

[0010] Optionally, a plurality of heating wires are provided inside the conveying cavity, and the heating wires are located at the bottom of the conveying cavity.

[0011] Optionally, a rotatable cleaning roller is provided inside the cleaning chamber, and a cleaning sponge that can contact the surface of the printing roller is provided on the cleaning roller. A second motor is fixedly connected to the mounting base, and the cleaning roller is fixedly connected to the output end of the second motor.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. The wedge-shaped scraper fits tightly against the printing roller, effectively scraping away residual materials on the surface. Combined with the wiping action of the cleaning sponge and the rinsing and drying functions of water or air, it can clean the printing roller in an all-round and deep manner, ensuring that there are no residual materials on the surface of the printing roller, significantly improving printing quality, reducing scrap rate, and improving the economic benefits of enterprises.

[0014] 2. By selectively connecting the air pump and water pump in the conveying mechanism, and by precisely switching the air inlet and water inlet in the control mechanism, flexible switching between various cleaning modes such as water injection cleaning, air jet drying, and heating drying is achieved. The device can select the most suitable cleaning method according to the degree of contamination of the printing roller and the actual cleaning needs, which greatly improves the adaptability and practicality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the device. Figure I ;

[0016] Figure 2 This is a schematic diagram of the overall structure of the device. Figure II ;

[0017] Figure 3 This is a schematic diagram of the scraper block and its connecting components of the device. Figure I ;

[0018] Figure 4 This is a schematic diagram of the scraper block and its connecting components of the device. Figure II ;

[0019] Figure 5 This is a full sectional view of the device;

[0020] Figure 6 Schematic diagram of the cleaning housing of this device Figure I ;

[0021] Figure 7 Schematic diagram of the cleaning housing of this device Figure II ;

[0022] The components are as follows: 1. Fixed base; 2. Printing roller; 3. Cleaning mechanism; 4. Mounting base; 5. Scraper; 6. Cleaning shell; 7. Cleaning chamber; 8. Conveying mechanism; 9. Collection hopper; 10. Drain outlet; 11. Conveying chamber; 12. Air pump; 13. Water pump; 14. Conveying hole; 15. Air inlet; 16. Water inlet; 17. Control mechanism; 18. Moving plate; 19. First motor; 20. Rotating screw; 21. Side plate; 22. Connecting hole; 23. Heating wire; 24. Cleaning roller; 25. Cleaning sponge; 26. Second motor. Detailed Implementation

[0023] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.

[0024] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 One embodiment shown is as follows: This label printing roller 2 scraping and cleaning device includes a fixed base 1, which serves as the basic frame of the entire device, providing stable support for other components. A rotatable printing roller 2 is arranged in the middle of the fixed base 1. The printing roller 2 is mounted on the fixed base 1 via bearings or other connection methods, allowing it to rotate flexibly to meet the needs of the printing process and cleaning in conjunction with the cleaning mechanism 3. The cleaning mechanism 3 is connected to the fixed base 1 via a detachable connection method, such as bolt connection or slot engagement. This connection method facilitates the installation, disassembly, and maintenance of the cleaning mechanism 3, allowing it to be easily removed from the fixed base 1 for operation, reducing equipment downtime and improving production efficiency. The detachable connection between the mounting base 4 in the cleaning mechanism 3 and the fixed base 1 ensures the replaceability and maintainability of the entire cleaning mechanism 3. The mounting base 4 is fixedly connected to... The scraper 5 is wedge-shaped and in close contact with the surface of the printing roller 2. Due to the wedge-shaped structure, the scraper 5 can effectively scrape off the material adhering to the surface of the printing roller 2 with its sharp edge during the rotation of the printing roller 2. This close contact and specific shape connection ensures the high efficiency of scraping. The cleaning shell 6 is fixedly connected to the mounting base 4 and together with the scraper 5, forms the cleaning chamber 7. The cleaning chamber 7 is used to collect the material scraped off by the scraper 5 and to contain the water or gas conveyed by the conveying mechanism 8, providing space for subsequent cleaning. The collection hopper 9 at the bottom of the scraper 5 is connected to the drain ports 10 on both sides of the cleaning chamber 7. The position design of the collection hopper 9 can smoothly guide the scraped material to the drain ports 10. The setting of the drain ports 10 facilitates the discharge of the collected material outside the device, preventing the material from accumulating in the device and causing secondary pollution, thus ensuring the continuity and cleanliness of the cleaning process.

[0025] The implementation principle of the above embodiment is as follows: During operation, the printing roller 2 rotates, and the scraper 5 moves relative to the surface of the printing roller 2 to scrape off the material attached to the printing roller 2. The scraped material falls into the cleaning chamber 7 under the action of gravity and is discharged into the collection hopper 9 through the drain port 10.

[0026] Reference Figure 3 , Figure 5 , Figure 6 One embodiment shown is as follows: the conveying chamber 11 of the conveying mechanism 8 is located inside the cleaning shell 6, serving as a conveying channel for water and gas. An air pump 12 is connected to one side of the top of the conveying chamber 11 via a pipe, and a water pump 13 is connected to the other side of the top of the conveying chamber 11 via a pipe. The connection between the air pump 12 and the water pump 13 and the conveying chamber 11 is selective, allowing the device to flexibly select to inject air or water according to different cleaning needs. Multiple conveying holes 14 at the bottom of the conveying chamber 11 communicate with the connecting cavity inside the cleaning chamber 7. The conveying holes 14 are evenly distributed at the bottom of the conveying chamber 11 to ensure that water or gas can enter the cleaning chamber 7 evenly, thereby thoroughly and evenly rinsing or drying the surface of the printing roller 2. When the printing roller 2 needs to be cleaned, the water pump 13 is started, and water enters the conveying chamber 11 from the water pump 13 and then enters the cleaning chamber 7 through the conveying holes 14 to rinse the printing roller 2. When the printing roller 2 needs to be dried, the water pump 13 is turned off and the air pump 12 is started. Air enters the conveying chamber 11 from the air pump 12 and then blows out through the conveying holes 14 to dry the surface of the printing roller 2.

[0027] The implementation principle of the above embodiment is as follows: by selectively connecting the air pump 12, water pump 13 and conveying chamber 11, and by uniformly distributing the conveying holes 14, precise supply and uniform distribution of water and gas in the cleaning chamber 7 are achieved. During the cleaning stage, the water provided by the water pump 13 flows through the conveying chamber 11 and the conveying holes 14, and rushes towards the surface of the printing roller 2 with a certain pressure and flow rate, using the impact force and solubility of the water flow to wash away the residual material. During the drying stage, the high-speed airflow provided by the air pump 12 blows onto the surface of the printing roller 2 through the conveying chamber 11 and the conveying holes 14, accelerating the evaporation of moisture and making the printing roller 2 dry quickly. This working principle of flexibly switching according to different cleaning stages improves the adaptability and cleaning efficiency of the device, meets diverse cleaning needs, and ensures the cleaning quality and working performance of the printing roller 2.

[0028] Reference Figure 3 , Figure 6 , Figure 7 One embodiment shown is as follows: In the conveying chamber 11, an air inlet 15 connected to the air pump 12 is provided on one side, and a water inlet 16 connected to the water pump 13 is provided on the other side. A control mechanism 17 is provided in the conveying chamber 11 to precisely control the communication state of the air inlet 15 and the water inlet 16, so as to prevent water and gas from entering the conveying chamber 11 at the same time and causing confusion.

[0029] The implementation principle of the above embodiment is as follows: During the cleaning process, according to actual needs, the control mechanism 17 controls the connection state of the air inlet 15 and the water inlet 16. When water is needed for cleaning, the control mechanism 17 opens the water inlet 16 and closes the air inlet 15, so that water can smoothly enter the conveying chamber 11 and flow to the printing roller 2. When cleaning is completed and air drying is required, the control mechanism 17 opens the air inlet 15 and closes the water inlet 16, so that air enters the conveying chamber 11 to dry the printing roller 2.

[0030] Reference Figure 3 , Figure 4 , Figure 5 One embodiment shown is as follows: the moving plate 18 of the control mechanism 17 is located inside the conveying cavity 11 and forms a sliding fit with the inner wall of the conveying cavity 11 to ensure that the moving plate 18 can move up and down smoothly inside the conveying cavity 11. The first motor 19 is installed at the top of the conveying cavity 11, and its output end is fixedly connected to one end of the rotating screw 20. The other end of the rotating screw 20 is supported in the conveying cavity 11 by bearings or other means. The rotating screw 20 passes through the moving plate 18 and is threadedly connected to the moving plate 18. Side plates 21 are provided on both sides of the moving plate 18. The connecting holes 22 on the side plate 21 correspond to the positions of the air inlet 15 and the water inlet 16, respectively, and the two connecting holes 22 are at different heights on the side plate 21. When the first motor 19 rotates forward, the rotating screw 20 drives the moving plate 18 to move upward, so that the connecting hole 22 on one side plate 21 connects with the water inlet 16. At this time, the air inlet 15 is closed by the moving plate 18. When the first motor 19 rotates in reverse, the moving plate 18 moves downward, and the connecting hole 22 on the other side plate 21 connects with the air inlet 15, and the water inlet 16 is closed.

[0031] The implementation principle of the above embodiment is as follows: the first motor 19 serves as a power source, and converts the rotational motion into the linear motion of the moving plate 18 by rotating the screw 20, thereby achieving precise control over the connection state of the air inlet 15 and the water inlet 16. When it is necessary to switch the cleaning mode, the first motor 19 is started according to the instruction of the control system, so that it rotates forward or reverses, driving the moving plate 18 to the corresponding position, so that the connecting hole 22 is accurately connected with the air inlet 15 or the water inlet 16, so as to achieve the orderly entry of water or air.

[0032] Reference Figure 5One embodiment is shown as follows: multiple heating wires 23 are evenly distributed at the bottom of the conveying chamber 11. The heating wires 23 are fixed to the bottom of the conveying chamber 11 by means of insulating brackets, etc., and maintain a certain safe distance from the inner wall of the conveying chamber 11 to prevent the heating wires 23 from short-circuiting with other components or damaging the surrounding structure due to overheating. The heating wires 23 are connected to the power supply and controlled by a suitable control circuit. For example, the heating power and temperature of the heating wires 23 can be adjusted by a thermostat. When the printing roller 2 needs to be dried quickly, the power supply of the heating wires 23 is turned on at the same time as the air pump 12 is started to inject air into the conveying chamber 11. The heating wires 23 heat up and heat the passing air. The hot air enters the cleaning chamber 7 from the conveying hole 14, accelerating the evaporation of moisture on the surface of the printing roller 2.

[0033] The implementation principle of the above embodiment is as follows: the heating wire 23 uses the thermal effect of electric current to convert electrical energy into heat energy. When air flows through the heated heating wire 23, it absorbs heat and the temperature rises. After the high-temperature hot air enters the cleaning chamber 7, it can more quickly remove the moisture from the surface of the printing roller 2, thus achieving an accelerated drying effect.

[0034] Reference Figure 3 , Figure 5 One embodiment is shown as follows: The cleaning roller 24 is rotatably connected to the cleaning chamber 7 and is connected to the inner wall of the cleaning chamber 7 through a rotating support structure such as bearings, allowing it to rotate freely within the cleaning chamber 7. The surface of the cleaning roller 24 is tightly wrapped with a cleaning sponge 25, which is fixed to the cleaning roller 24 with glue or other fixing methods to ensure that it will not fall off during use. The cleaning sponge 25 is made of a material with good water absorption and softness, and can remove fine impurities and residual stains from the surface of the printing roller 2 through slight friction when in contact with the surface of the printing roller 2, without causing scratches or other damage to the surface of the printing roller 2. During the rotation of the printing roller 2, the cleaning roller 24 also rotates under the action of friction. The cleaning sponge 25 continuously wipes the surface of the printing roller 2, which, together with the scraping action of the scraper 5 and the rinsing and drying action of the conveying mechanism 8, further improves the cleaning effect and ensures that the cleanliness of the surface of the printing roller 2 reaches a higher standard. A second motor 26 is fixedly connected to the mounting base 4, and the cleaning roller 24 is fixedly connected to the output end of the second motor 26, which drives the cleaning roller 24 to rotate.

[0035] The implementation principle of the above embodiment is as follows: When the printing roller 2 rotates to perform the cleaning operation, the cleaning roller 24 rotates synchronously under the drive of friction. The cleaning sponge 25 is in continuous contact with the surface of the printing roller 2. During the water injection cleaning stage, the cleaning sponge 25, under the immersion of water, can better absorb the tiny particles and stains on the surface of the printing roller 2, thereby enhancing the cleaning effect. During the air-drying stage, the cleaning sponge 25 can absorb the small amount of residual moisture on the surface of the printing roller 2, accelerate the drying speed, and further wipe the surface to ensure that the cleanliness and dryness of the surface of the printing roller 2 are uniform.

[0036] The working principle of this device is as follows: During the rotation of the printing roller 2, the scraper 5, with its wedge-shaped structure, closely adheres to the surface of the printing roller 2. Utilizing the friction between the two, residual materials such as ink, pigments, and paper scraps adhering to the surface of the printing roller 2 are scraped off. The scraped material flows into the cleaning chamber 7 under gravity and enters the collection hopper 9 through the drain ports 10 on both sides, achieving initial collection and concentration of the material and preventing secondary pollution caused by material scattering. When the water cleaning function is activated, the control mechanism 17 connects the connecting hole 22 on the moving plate 18 with the water inlet hole 16. The water pump 13 draws water into the conveying chamber 11, and the water is evenly sprayed onto the surface of the printing roller 2 in the cleaning chamber 7 through the conveying hole 14 at the bottom of the conveying chamber 11. At this time, the rotation of the printing roller 2 causes the water to flow... The system can fully cover the surface of the printing roller 2, further rinsing away any residual material. Simultaneously, the cleaning sponge 25 on the cleaning roller 24 gently wipes the surface of the printing roller 2 under the influence of the water flow, removing fine impurities and stains and improving the cleaning effect. After cleaning, the control mechanism 17 switches to connect the connecting hole 22 with the air inlet 15. The air pump 12 pressurizes air into the conveying chamber 11 and enters the cleaning chamber 7 through the conveying hole 14. The high-speed airflow blows across the surface of the printing roller 2, drying the moisture. If it is necessary to accelerate the drying process, the heating wire 23 can be activated to heat the incoming air. The hot air can evaporate the moisture on the surface of the printing roller 2 more quickly, allowing the printing roller 2 to quickly return to a dry state, ensuring that it can work normally in subsequent printing operations and guaranteeing the stability of printing quality.

[0037] The working principle of this device has been explained through the above embodiments. These embodiments only illustrate several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A label printing roller scraping and cleaning device, comprising a fixed base (1), characterized in that: A rotatable printing roller (2) is provided in the middle of the fixed seat (1). A cleaning mechanism (3) is detachably connected to the fixed seat (1). The cleaning mechanism (3) includes a mounting seat (4). The mounting seat (4) is detachably connected to the fixed seat (1). A scraper (5) that can contact the surface of the printing roller (2) is provided on the mounting seat (4). The scraper (5) is wedge-shaped. A cleaning shell (6) is provided on the mounting seat (4). The lower side of the cleaning shell (6) is groove-shaped. A cleaning cavity (7) is provided between the cleaning shell (6) and the scraper (5). A conveying mechanism (8) that can inject water or air into the cleaning cavity (7) is provided inside the cleaning shell (6). A collection hopper (9) is provided at the bottom of the scraper (5). Drainage ports (10) that can communicate with the collection hopper (9) are provided on both sides of the cleaning cavity (7).

2. The label printing roller scraping and cleaning device according to claim 1, characterized in that: The conveying mechanism (8) includes a conveying chamber (11), which is located inside the cleaning shell (6). An air pump (12) is connected to one side of the top of the conveying chamber (11), and a water pump (13) is connected to the other side of the top of the conveying chamber (11). The air pump (12) and the water pump (13) are connected to the conveying chamber (11) by one of them. The bottom of the conveying chamber (11) has several conveying holes (14) that are connected to the inner cavity of the cleaning chamber (7).

3. The label printing roller scraping and cleaning device according to claim 2, characterized in that: An air inlet (15) communicating with the conveying cavity (11) is provided on one side of the conveying cavity (11), and a water inlet (16) communicating with the conveying cavity (11) is provided on the other side of the conveying cavity (11). A control mechanism (17) is provided in the conveying cavity (11) to close the communication state of the air inlet (15) or the water inlet (16).

4. The label printing roller scraping and cleaning device according to claim 3, characterized in that: The control mechanism (17) includes a movable plate (18), which is slidably connected in the conveying chamber (11). A first motor (19) is provided at the top of the conveying chamber (11). A rotatable rotating screw (20) is provided at the output end of the first motor (19). The rotating screw (20) is threadedly connected to the movable plate (18). Side plates (21) are respectively provided on both sides of the movable plate (18). A connecting hole (22) is provided on the side plate (21) that can communicate with the air inlet (15) or water inlet (16) on its corresponding side. The two connecting holes (22) are located at different heights on the side plate (21). The connecting hole (22) is selectively connected to the air inlet (15) or water inlet (16) on its corresponding side.

5. The label printing roller scraping and cleaning device according to claim 2, characterized in that: The conveying cavity (11) is provided with a plurality of heating wires (23), and the heating wires (23) are located at the bottom of the conveying cavity (11).

6. The label printing roller scraping and cleaning device according to claim 1, characterized in that: The cleaning chamber (7) is provided with a rotatable cleaning roller (24), and a cleaning sponge (25) that can contact the surface of the printing roller (2) is provided on the cleaning roller (24). A second motor (26) is fixedly connected to the mounting base (4), and the cleaning roller (24) is fixedly connected to the output end of the second motor (26).

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