A pre-coat roll automatic cleaning device

Abstract

The utility model relates to transmission roller technology field, especially relates to a kind of automatic cleaning device of pre-coating roller, including shell, still including press roll, the press roll is located the inside top end of shell;Cleaning module, the cleaning module is located the inside of shell, the cleaning module is used to clean press roll surface;And drive module, the drive module is fixedly installed in the side of shell, the drive module is used to drive press roll and cleaning module synchronous motion, drive module can simultaneously drive press roll and cleaning module coordinated rotation, so that cleaning module can always keep sufficient contact with press roll surface, avoid because of the difference in rotational speed to produce cleaning dead angle, make cleaning action overall cover each place of press roll, in rotation, cleaning module can continuously act on press roll surface, efficiently remove residual pre-coating material, significantly improve cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of transmission roller technology, and in particular to an automatic cleaning device for pre-coated rollers. Background Technology

[0002] In industrial production fields such as printing, coating, and lamination, pre-coating rollers are key components for achieving uniform coating of material surfaces, and their surface cleanliness directly affects the pre-coating quality and product consistency. However, after pre-coating, pre-coating materials (such as adhesives and paints) are easily left on the roller surface. If not cleaned in time, the residual materials will solidify and accumulate as the roller rotates, which not only leads to uneven coating and defects in subsequent processes, but may also accelerate roller wear and shorten its service life.

[0003] Currently, the cleaning of pre-coating rollers relies heavily on manual wiping. Manual cleaning is not only labor-intensive and inefficient, but its effectiveness also depends heavily on the operator's experience and sense of responsibility. Inconsistent cleaning due to uneven pressure or missed areas can affect the precision of subsequent pre-coating processes. More importantly, a single manual cleaning session often takes several hours, significantly extending downtime and severely hindering continuous production efficiency. Furthermore, direct contact with the roller surface can cause secondary contamination, increasing quality risks.

[0004] Therefore, it is necessary to develop an automatic device that can achieve coordinated movement between the pressure roller and the cleaning module for dynamic and efficient cleaning. Utility Model Content

[0005] The purpose of this invention is to provide an automatic cleaning device for pre-coated rollers to solve the problems existing in the prior art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] An automatic cleaning device for pre-coated rollers includes a housing and further includes:

[0008] A pressure roller, located at the inner top of the housing;

[0009] A cleaning module, located inside the housing, is used to clean the surface of the pressure roller;

[0010] The drive module is fixedly installed on one side of the housing and is used to drive the pressure roller and the cleaning module to move synchronously.

[0011] By adopting the above technical solution, the drive module can simultaneously drive the pressure roller and the cleaning module to rotate in coordination, so that the cleaning module can always maintain full contact with the surface of the pressure roller, avoid cleaning dead angles caused by speed difference, and make the cleaning action fully cover all parts of the pressure roller. During rotation, the cleaning module can continuously act on the surface of the pressure roller, efficiently remove residual pre-coated materials, and significantly improve the cleaning effect.

[0012] In a further embodiment, the cleaning module includes:

[0013] The second round rod has its two ends rotatably mounted on the inner wall of the outer casing. The axis of the second round rod is parallel to the axis of the pressure roller. The front end of the second round rod is fixedly mounted to the drive module, which drives the second round rod to rotate.

[0014] The scraper is provided in multiple ways. The scrapers are evenly distributed axially on the surface of the second round rod. The centrifugal side of the scraper is in contact with the surface of the pressure roller. The length of the scraper in the front-to-back direction is the same as the length of the pressure roller in the front-to-back direction. The scraper is used to clean the pressure roller.

[0015] By adopting the above technical solution, the second round rod provides a carrier for the installation and rotation of the scraper. Multiple axially evenly distributed scrapers can fully contact the surface of the pressure roller, and the length of the scraper is consistent with that of the pressure roller. During the rotation, the residual pre-coated material on the surface of the roller can be completely scraped off, which significantly improves the cleaning effect.

[0016] In a further embodiment, the driving module includes:

[0017] Mounting plate, the mounting plate is fixedly installed on the front right end of the outer shell, and the front side of the mounting plate is provided with a third mounting hole;

[0018] The first gear is fixedly installed on the front side of the pressure roller, and the axis of the first gear is collinear with the axis of the pressure roller;

[0019] The second gear is fixedly installed on the front side of the second round rod, and the axis of the second gear and the axis of the second round rod are collinear.

[0020] A servo motor is fixedly mounted on the rear side of the mounting plate, and the shaft of the servo motor passes through the third mounting hole.

[0021] The third gear is fixedly installed on the shaft of the servo motor, and the axis of the third gear and the axis of the shaft are collinear.

[0022] The gear belt is rotatably mounted on the front side of the housing. The gear belt is sleeved on the first gear, the second gear, the third gear and the tensioning wheel. The gear belt meshes with the first gear, the second gear and the third gear. The gear belt is used to drive the first gear, the second gear and the third gear to rotate synchronously. The tensioning wheel is used to ensure that the gear belt has sufficient tension.

[0023] By adopting the above technical solution, the servo motor synchronously drives the first gear and the second gear to rotate through the gear belt, ensuring the coordination of their rotation; the tensioning wheel is provided to enhance the transmission stability, prevent slippage, and ensure the matching accuracy of the roller and the cleaning module during the cleaning process. At the same time, the servo motor can provide stable power, improving the reliability of the device operation.

[0024] In a further embodiment, a spraying module and a drying unit are also included. The spraying module includes a support rod, a liquid storage tank, and a nozzle. The two ends of the support rod are rotatably mounted on the inner wall of the housing, and the axis of the support rod is parallel to the axis of the pressure roller. The liquid storage tank is fixedly mounted on the rear side of the housing, and a liquid level sensor is fixedly mounted at the bottom of the liquid storage tank. The liquid level sensor is used to detect the height of the cleaning liquid inside the liquid storage tank. The nozzle is fixedly mounted on the right side of the support rod, and the nozzle is connected to the liquid storage tank through a pipe. The nozzle is used to spray the cleaning liquid.

[0025] By adopting the above technical solution, the storage tank can store cleaning fluid, and the nozzle sprays the cleaning fluid to the pressure roller through the pipeline, which enhances the cleaning effect in conjunction with the cleaning module; the support rod can rotate to adjust the nozzle angle to adapt to different cleaning needs; the liquid level sensor can monitor the remaining amount of cleaning fluid in the storage tank in real time, so as to facilitate timely replenishment and avoid affecting the cleaning operation due to lack of liquid.

[0026] In a further embodiment, the drying unit includes:

[0027] Multiple air knives are provided and fixedly installed on the top left side of the housing. The air knives are used to dry the pressure roller.

[0028] A near-infrared sensor is located on one side of the air knife and is fixedly installed on the top left side inside the housing. The near-infrared sensor is used to detect the dryness of the pressure roller.

[0029] By adopting the above technical solution, multiple air knives can quickly dry the cleaned pressure rollers, avoiding residual cleaning liquid from affecting subsequent pre-coating operations; near-infrared sensors can detect the dryness of the pressure rollers in real time, ensuring that the drying meets the standards before proceeding to the next process, thus improving the stability of the operation quality.

[0030] In a further embodiment, a first round rod is rotatably mounted on the inner top end of the outer shell, and the pressure roller is sleeved on the first round rod, with the axis of the first round rod being collinear with the axis of the pressure roller.

[0031] In a further embodiment, the diameters of the first and second round rods are different, and the inner bottom end of the outer casing is provided with a drain hole that extends through the left and right sides. A piston is detachably installed in the drain hole, and the piston is used to seal the drain hole.

[0032] By adopting the above technical solution, the first and second round rods have different diameters, which can prevent the scraper from failing to clean the entire surface of the pressure roller; the drain hole at the bottom of the housing can discharge the waste liquid generated during cleaning in a timely manner, and the piston can seal the drain hole to prevent liquid leakage when not in operation. The detachable design also facilitates waste liquid cleaning and device maintenance, enhancing practicality.

[0033] In summary, this utility model has the following beneficial effects:

[0034] 1. By fixing air knives and near-infrared sensors inside the housing on the top left side, multiple air knives can quickly dry the cleaned rollers, avoiding residual cleaning fluid from affecting subsequent pre-coating operations; the near-infrared sensors can detect the dryness of the rollers in real time, ensuring that the drying standard is met before proceeding to the next process, thus improving the stability of the operation quality. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0036] Figure 2 This is a schematic diagram of the spraying module of this utility model;

[0037] Figure 3 This is a schematic diagram of the drive module of this utility model;

[0038] Figure 4 This is a schematic diagram of the cleaning module of this utility model.

[0039] In the diagram, 1. Outer shell; 2. Pressure roller; 3. Cleaning module; 31. Second round rod; 32. Scraper; 4. Drive module; 41. Mounting plate; 42. First gear; 43. Second gear; 44. Servo motor; 45. Third gear; 46. Gear belt; 5. Spraying module; 51. Support rod; 52. Liquid storage tank; 53. Nozzle; 6. Drying unit; 61. Air knife; 62. Near-infrared sensor; 7. Liquid level sensor; 8. First round rod. Detailed Implementation

[0040] The present invention will be further described in detail below with reference to the accompanying drawings.

[0041] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0042] Example 1:

[0043] like Figures 1-4 As shown, an automatic cleaning device for pre-coated rollers includes a housing 1, the top of which is completely open. A first mounting hole, penetrating from front to back, is provided on both the front and rear sides of the housing 1. Second mounting holes are spaced apart on one side of each of the first mounting holes, with the axes of the first and second mounting holes parallel to each other. A pressure roller 2 has a first round rod 8 rotatably mounted within the first mounting hole. The pressure roller 2 is located at the inner top of the housing 1 and is fitted onto the middle section of the first round rod 8. The axial direction of the pressure roller 2 is forward and backward. A cleaning module 3 has two ends rotatably mounted within the second mounting holes of the housing 1, and is used to clean the pressure roller 2. A drive module 4 is fixedly mounted on the right side of the housing 1, and is fixedly mounted to the front of the cleaning module 3 and the pressure roller 2. The drive module 4 is used to drive the cleaning module 3 and the pressure roller 2 to rotate.

[0044] The cleaning module 3 includes a second round rod 31, with both ends of the second round rod 31 rotatably installed in the second mounting hole. The front end of the second round rod 31 is fixedly installed with the drive module 4, and the drive module 4 drives the second round rod 31 to rotate. It also includes a scraper 32, with multiple scrapers 32. The scrapers 32 are axially evenly distributed on the surface of the second round rod 31. The centrifugal side of the scraper 32 contacts the surface of the pressure roller 2. The length of the scraper 32 in the front-back direction is the same as the length of the pressure roller 2 in the front-back direction. The scraper 32 is used to clean the pressure roller 2.

[0045] The drive module 4 includes a mounting plate 4241, which is fixedly mounted on the front right side of the housing 1, and a third mounting hole is provided on the front side of the mounting plate 4241; a first gear 42, which is fixedly mounted on the front side of the pressure roller 2, with the axis of the first gear 42 collinear with the axis of the pressure roller 2; a second gear 43, which is fixedly mounted on the front side of the second round rod 31, with the axis of the second gear 43 collinear with the axis of the second round rod 31; a servo motor 44, which is fixedly mounted on the rear side of the mounting plate 4241, with the shaft of the servo motor 44 passing through the third mounting hole; and a third gear 45, which... The three gears 45 are fixedly mounted on the shaft of the servo motor 44. The axis of the third gear 45 is collinear with the axis of the shaft. A tensioning wheel is rotatably mounted on the front side of the housing 1 along with the gear belt 46. The gear belt 46 is sleeved on the first gear 42, the second gear 43, the third gear 45 and the tensioning wheel. The gear belt 46 meshes with the first gear 42, the second gear 43 and the third gear 45. The gear belt 46 is used to drive the first gear 42, the second gear 43 and the third gear 45 to rotate synchronously. The tensioning wheel is used to ensure that the wrap angle formed by the gear belt 46 with the first gear 42, the second gear 43 and the third gear 45 is greater than 120°.

[0046] It also includes a spraying module 5 and a drying unit 6. The spraying module 5 includes a support rod 51, a liquid storage tank 52 and a nozzle 53. The two ends of the support rod 51 are rotatably mounted on the inner wall of the outer casing 1. The axis of the support rod 51 is set along the front-back direction. The liquid storage tank 52 is fixedly mounted on the rear side of the outer casing 1. A liquid level sensor 7 is fixedly mounted on the bottom of the liquid storage tank 52. The liquid level sensor 7 is used to detect the height of the cleaning liquid inside the liquid storage tank 52. The nozzle 53 is fixedly mounted on the right side of the support rod 51. The nozzle 53 is connected to the liquid storage tank 52 through a pipe. The nozzle 53 is used to spray the cleaning liquid.

[0047] The drying unit 6 includes multiple air knives 61, which are fixedly installed on the top left side inside the housing 1. The air knives 61 are used to dry the pressure roller 2. The unit also includes a near-infrared sensor 62, which is fixedly installed on one side of the air knives 61. The near-infrared sensor 62 is used to detect the dryness of the pressure roller 2. The air knives 61 draw air to dry the pressure roller 2. One end of the air knives 61 is connected to a filter, which is used to filter impurities in the air to prevent them from clogging the air knives 61. The distance between the other end of the air knives 61 and the axis of the pressure roller 2 is less than the distance between the other end of the air knives 61 and the axis of the pressure roller 2.

[0048] The diameter of the first round rod 8 is different from that of the second round rod 31. A drain hole that runs through the left and right sides is opened at the inner bottom end of the outer casing 1. A piston can be detachably installed in the drain hole, and the piston is used to seal the drain hole.

[0049] Specific implementation process: After the pre-coating roller automatic cleaning device is started, the servo motor 44 of the drive module 4 starts working, and its rotating shaft drives the third gear 45 to rotate. Through the gear belt 46, it meshes with the first gear 42, the second gear 43, and the third gear 45, synchronously driving the first gear 42 and the second gear 43 to rotate. The tensioning wheel ensures that the wrap angle between the gear belt 46 and each turntable is greater than 120° to ensure stable transmission and prevent slippage, so that the pressure roller 2 and the scraper 32 of the cleaning module 3 rotate synchronously at a coordinated speed. During the synchronous rotation, the spraying module 5 is started, and the cleaning liquid in the storage tank 52 is transported to the nozzle 53 through the pipeline. The nozzle 53, under the adjustment of the rotatable support rod 51, sprays the cleaning liquid evenly on the surface of the pressure roller 2. The liquid level sensor 7 monitors the remaining cleaning liquid in the storage tank 52 in real time. If it is insufficient, it issues a replenishment prompt. As the pressure roller 2 and the scraper... The synchronous rotation of the cleaning module 3 and the multiple scrapers 32 of the cleaning module 3 completely scrape away the residual pre-coating material on the surface of the pressure roller 2. Because the diameters of the first round rod 8 and the second round rod 31 are different, dead angles in contact between the scraper 32 and the pressure roller 2 are avoided. With the help of the surface cleaning liquid, stains can be removed efficiently. The waste liquid generated during the cleaning process flows to the bottom of the inner shell 1 and is discharged through the drainage holes on the left and right. When not in operation, the piston can be installed at the drainage hole. After cleaning, the pressure roller 2 continues to rotate to the drying unit 6 area. Multiple air knives 61 are activated to quickly dry the surface of the pressure roller 2, so as to avoid the residual cleaning liquid from affecting the subsequent pre-coating operation. At the same time, the near-infrared sensor 62 detects the dryness of the surface of the pressure roller 2 in real time. The light source of the sensor emits near-infrared light. After irradiating the sample surface, part of the light is directly reflected by the sample surface, and the other part penetrates the sample surface and goes deep into the interior. Within the water molecules inside the sample, hydrogen-oxygen bonds selectively absorb near-infrared light of specific wavelengths. The more water there is, the more of these specific wavelengths of light are absorbed, resulting in weaker light intensity reflected back to the detector after passing through. The detector detects this change in the intensity of the reflected light to determine the dryness of the pressure roller 2. When the dryness reaches the set standard, the drying unit 6 stops working. After the pressure roller 2 is completely dry, the servo motor 44 stops running, and the pressure roller 2 and scraper 32 stop rotating, completing one automatic cleaning operation.

[0050] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0051] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An automatic cleaning device for pre-coated rollers, comprising a housing (1), characterized in that, Also includes: Pressure roller (2), the pressure roller (2) is located at the inner top of the outer shell (1); A cleaning module (3) is located inside the outer shell (1) and is used to clean the surface of the pressure roller (2). The drive module (4) is fixedly installed on one side of the housing (1) and is used to drive the pressure roller (2) and the cleaning module (3) to move synchronously.

2. The automatic cleaning device for pre-coated rollers according to claim 1, characterized in that: The cleaning module (3) includes: The second round rod (31) has its two ends rotatably mounted on the inner wall of the outer shell (1). The axis of the second round rod (31) is parallel to the axis of the pressure roller (2). The front end of the second round rod (31) is fixedly mounted to the drive module (4). The drive module (4) drives the second round rod (31) to rotate. The scraper (32) is provided in multiple ways. The scraper (32) is axially evenly distributed on the surface of the second round rod (31). The centrifugal side of the scraper (32) is in contact with the surface of the pressure roller (2). The length of the scraper (32) in the front-back direction is the same as the length of the pressure roller (2) in the front-back direction. The scraper (32) is used to clean the pressure roller (2).

3. The automatic cleaning device for pre-coated rollers according to claim 2, characterized in that: The driving module (4) includes: Mounting plate (41), the mounting plate (41) is fixedly installed on the front right end of the outer shell (1), and the front side of the mounting plate (41) is provided with a third mounting hole; The first gear (42) is fixedly installed on the front side of the pressure roller (2), and the axis of the first gear (42) and the axis of the pressure roller (2) are collinear. The second gear (43) is fixedly installed on the front side of the second round rod (31), and the axis of the second gear (43) and the axis of the second round rod (31) are collinear; Servo motor (44), the servo motor (44) is fixedly mounted on the rear side of the mounting plate (41), and the shaft of the servo motor (44) passes through the third mounting hole; The third gear (45) is fixedly installed on the shaft of the servo motor (44), and the axis of the third gear (45) and the axis of the servo motor (44) shaft are collinear. The gear belt (46) is rotatably mounted on the front side of the housing (1). The gear belt (46) is sleeved on the first gear (42), the second gear (43), the third gear (45) and the tensioning wheel. The gear belt (46) meshes with the first gear (42), the second gear (43) and the third gear (45). The gear belt (46) is used to drive the first gear (42), the second gear (43) and the third gear (45) to rotate synchronously. The tensioning wheel is used to ensure that the gear belt (46) has sufficient tension.

4. The automatic cleaning device for pre-coated rollers according to claim 1, characterized in that: It also includes a spraying module (5) and a drying unit (6). The spraying module (5) includes a support rod (51), a liquid storage tank (52) and a nozzle (53). The two ends of the support rod (51) are rotatably installed on the inner wall of the outer shell (1). The axis of the support rod (51) is parallel to the axis of the pressure roller (2). The liquid storage tank (52) is fixedly installed on the rear side of the outer shell (1). A liquid level sensor (7) is fixedly installed at the bottom of the liquid storage tank (52). The liquid level sensor (7) is used to detect the height of the cleaning liquid inside the liquid storage tank (52). The nozzle (53) is fixedly installed on one side of the support rod (51). The nozzle (53) is connected to the liquid storage tank (52) through a pipe. The nozzle (53) is used to spray the cleaning liquid.

5. The automatic cleaning device for pre-coated rollers according to claim 4, characterized in that: The drying unit (6) includes: Air knife (61), multiple air knives (61) are provided, and multiple air knives (61) are fixedly installed on the top of the inner shell (1). The air knife (61) is used to dry the pressure roller (2); And a near-infrared sensor (62), the near-infrared sensor (62) is located on one side of the air knife (61), the near-infrared sensor (62) is fixedly installed on the top of the housing (1), and the near-infrared sensor (62) is used to detect the dryness of the pressure roller (2).

6. The automatic cleaning device for pre-coated rollers according to claim 1, characterized in that: The inner top of the outer shell (1) is rotatably mounted with a first round rod (8), and the pressure roller (2) is sleeved on the first round rod (8). The axis of the first round rod (8) is collinear with the axis of the pressure roller (2).

7. The automatic cleaning device for pre-coated rollers according to claim 6, characterized in that: The diameter of the first round rod (8) is different from that of the second round rod (31). The inner bottom end of the outer shell (1) is provided with a drain hole that runs through the left and right sides. A piston is detachably installed in the drain hole, and the piston is used to seal the drain hole.

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