Micro-concave coating roller

Abstract

The utility model relates to the field of optical film coating, in particular to a micro-concave coating roller which comprises an iron core, a jacket; the limiting assembly is used for limiting the iron core and the jacket; the lubricating device is used for lubricating the jacket when the jacket is mounted; the iron core is connected with the clamping sleeve in a sleeved mode, the lubricating device is installed in the iron core and comprises an inner groove, the inner groove is formed in the outer wall of the iron core, an oil brush is installed in the inner groove, an oil bin is installed in the iron core, the oil brush is connected with the oil bin, and the oil brush is located on the motion trail of the clamping sleeve. Through the arrangement of the plurality of jackets, quick replacement can be carried out according to the coating thickness design requirements of different products, as only the jackets need to be replaced, and the iron core does not need to be replaced, the replacement process is relatively convenient, the working efficiency is improved, and the material cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of optical film coating, in particular to a micro-concave coating roller. Background Art

[0002] At present, there are many coating methods in the coating field, such as air knife coating, comma blade coating, wire rod coating, reverse roller coating, gravure coating, slot die coating, slide coating, curtain coating, etc. According to the rheological properties of the coating liquid and product requirements, choose the appropriate coating method. The coating used in optical film functional coating mainly requires thin coating, high precision and high-quality appearance. The coating methods used are mainly micro-gravure coating and slit coating. The diameter of the traditional gravure coating roller is 150-300mm. During coating, the liquid bridge area between the base film and the gravure roller is large. In addition, the use of a pressure roller makes it easy for lines and scratches to appear on the coating surface, which cannot meet the appearance requirements of display-related film materials. The micro-gravure coating method is derived from the above coating defects. The diameter of the micro-gravure roller is 40-60mm, and no pressure roller is used. This coating method can obtain a smooth, uniform and stable coating. This coating method is simple and reliable, with good repeatability and stability. It is the coating method currently used for display-related optical functional coatings. When using micro-gravure coating, the appropriate mesh count will be selected based on the solid content of the coating liquid and the coating thickness required by the product. Although the micro-gravure roller speed, scraper pressure, etc. will also affect the coating thickness, the impact range is limited. After the solid content of the coating liquid is determined, the coating thickness is mainly determined by the mesh count of the micro-gravure roller. Due to different product and functional requirements, there will be different coating thickness designs, so various micro-gravure rollers with different mesh counts are needed to meet product requirements. In addition, if the micro-gravure roller is damaged during use, it also needs to be repaired or replaced regularly, which is an increase in cost for manufacturers.

[0003] Chinese patent publication number CN212883244U discloses "a micro-concave roller and a micro-concave coating device", including: a bearing shaft, a main shaft is sleeved on the outside of the bearing shaft, a steel sleeve is sleeved on the outside of the main shaft, and the ceramic layer is sleeved on the outside of the steel sleeve; the ceramic layer includes patterned areas and smooth non-patterned areas distributed in an array. By setting patterned areas and non-patterned areas on the ceramic layer, selective coating on the substrate is achieved; the shape and parameters of the mesh cells are optimized at the microscopic level, and the ink carrying capacity and transfer effect of the mesh cells are improved; the uniformity of the coating film layer is improved by reducing the roller diameter, and the formation of film layer defects is reduced; small-area film layers are prepared in large quantities, reducing material loss. In addition, the micro-concave roller in the application can also be used to prepare sensor devices with multi-layer structures, which has high industrial application value.

[0004] During the conception process, the applicant searched a large number of patent documents on the patent network. For example, Chinese patent publication number CN212883244U discloses "a micro-concave roller and a micro-concave coating device". During the micro-concave coating process, due to the design requirements of different product coating thicknesses, micro-concave rollers with different mesh sizes need to be prepared for replacement. Since the replacement is troublesome and the cost of the micro-concave roller is high, the problem of increased cost is derived. Therefore, a micro-concave coating roller is proposed to solve the above-mentioned problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a micro-concave coating roller, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: a micro-concave coating roller, comprising:

[0006] Iron core;

[0007] Jacket;

[0008] Limiting assembly, used to limit the core and jacket;

[0009] A lubrication device, used for lubricating the jacket when it is installed;

[0010] The iron core is sleeved with the sleeve, and the lubricating device is installed inside the iron core. The lubricating device includes an inner groove, which is opened on the outer wall of the iron core. An oil brush is installed inside the inner groove. An oil bin is installed inside the iron core, and the oil brush is connected to the oil bin. The oil brush is located on the movement track of the sleeve, and a handle is installed on the sleeve.

[0011] Preferably, the diameter range of the iron core and the jacket when they are sleeved together is 40 mm to 100 mm, and the length range of the iron core and the jacket when they are sleeved together is 500 mm to 2500 mm.

[0012] Preferably, the thickness range of the jacket is 10 mm to 20 mm, and there are multiple jackets, and the surfaces of the multiple jackets are respectively provided with pyramid-shaped, quadrilateral, oblique line, and hexagonal patterns. The surfaces of the multiple jackets can also be provided with patterns of the same shape but different mesh numbers, and the mesh number range of the patterns is 30 to 250.

[0013] Preferably, the limit assembly includes a limit pin, and a limit slot is provided on the limit pin and the iron core. The limit pin is slidably connected to the limit slots of the iron core and the jacket. The limit pin is connected to a mounting belt, and the mounting belt is connected to the iron core.

[0014] Preferably, the lubrication device further comprises a plurality of capillary tubes, one section of each of the capillary tubes is installed inside the oil brush, and another section of each of the capillary tubes is located inside the oil bin.

[0015] Preferably, an oil pipe is installed on the inner wall of the oil bin, and the oil pipe passes through the outer wall of the iron core.

[0016] Preferably, a boost plug is slidably mounted on the inner wall of the oil bin, a spherical rod is mounted on the boost plug, the spherical rod is slidably mounted on the inner wall of the iron core, the top of the spherical rod is located on the movement trajectory of the jacket, and a spring plate is connected to the bottom of the boost plug, which is connected to the inner wall of the oil bin.

[0017] It can be seen from the above technical solutions that the micro-concave coating roller provided in the embodiments of this specification has at least the following beneficial effects:

[0018] (1) The utility model can quickly replace multiple jackets according to the coating thickness design requirements of different products through the arrangement of multiple jackets. Since only the jacket needs to be replaced and the iron core does not need to be replaced, the replacement process is relatively convenient, which improves work efficiency and reduces material costs. The arrangement of the limit assembly can prevent the jacket from sliding when the iron core drives the jacket to rotate, thereby affecting the coating effect. After the limit pin is pulled out, the installation belt hangs the limit pin on the iron core, which is convenient for the staff to take and prevents the staff from accidentally losing it.

[0019] (2) The utility model provides a lubricating device so that during the installation of the jacket, the oil brush can continuously apply lubricating oil to the inner wall of the jacket, thereby maintaining the lubrication between the jacket and the core, making the installation process more labor-saving and improving work efficiency. The lubricating device can also recycle excess lubricating oil to prevent waste, thereby avoiding the increase of friction between the jacket and the core after long-term use, which makes replacement difficult. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure when the jacket and the iron core are separated in the utility model;

[0023] Figure 3 It is a structural schematic diagram of the limit assembly in the utility model;

[0024] Figure 4 It is a structural schematic diagram of the lubrication device in the utility model.

[0025] In the figure: 1. iron core; 2. jacket; 21. handle; 3. limit assembly; 31. limit pin; 32. mounting belt; 4. lubrication device; 41. inner groove; 42. oil pipe; 43. oil tank; 44. oil brush; 45. capillary; 46. spherical rod; 47. boost plug; 48. spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] See also Figure 1-Figure 4 As shown, a micro-concave coating roller comprises: an iron core 1; a jacket 2; a limiting assembly 3, which is used to limit the iron core 1 and the jacket 2; the iron core 1 is sleeved with the jacket 2, and a handle 21 is installed on the jacket 2. The staff will sleeve the jacket 2 on the iron core 1 through the handle 21, and perform the replacement operation through the handle 21, thereby avoiding the staff from directly contacting the surface of the jacket 2; the diameter range of the iron core 1 and the jacket 2 when they are sleeved together is 40 mm to 100 mm, the length range of the iron core 1 and the jacket 2 when they are sleeved together is 500 mm to 2500 mm, the thickness range of the jacket 2 is 10 mm to 20 mm, and the jacket 2 is provided with a plurality of jackets 2, and the surfaces of the plurality of jackets 2 are respectively provided with pyramid-shaped, quadrilateral, oblique line-shaped, and hexagonal patterns, and the surfaces of the plurality of jackets 2 can also be To open patterns with the same shape but different mesh numbers, the mesh number range of the patterns is 30 to 250. When coating with different thicknesses or different patterns is required, the staff pulls out the limit pin 31, pulls out the jacket 2, replaces a different jacket 2, and repeats the above steps. By setting multiple jackets 2, they can be quickly replaced according to the coating thickness design requirements of different products. Since only the jacket 2 needs to be replaced and the core 1 does not need to be replaced, the replacement process is more convenient, which improves work efficiency and reduces material costs. The limit assembly 3 includes a limit pin 31, and the limit pin 31 and the core 1 are both provided with limit grooves. The limit pin 31 is slidably connected to the limit grooves of the core 1 and the jacket 2. The limit pin 31 is connected with a mounting belt 32, and the mounting belt 32 is connected to the core 1.

[0029] In this embodiment, by setting up multiple jackets 2, they can be quickly replaced according to the coating thickness design requirements of different products. Since only the jacket 2 needs to be replaced, there is no need to replace the iron core 1, the replacement process is relatively convenient, which improves work efficiency and reduces material costs. By setting up the limit assembly 3, the jacket 2 is prevented from sliding during the process of the iron core 1 driving the jacket 2 to rotate, thereby affecting the coating effect. After the limit pin 31 is pulled out, the installation belt 32 hangs the limit pin 31 on the iron core 1, which is convenient for the staff to take it and avoids the staff from accidentally losing it.

[0030] For further information, see Figure 1-Figure 4 As shown, the lubricating device 4 is used to lubricate the jacket 2 when it is installed. The lubricating device 4 is installed inside the iron core 1. The lubricating device 4 includes an inner groove 41, which is opened on the outer wall of the iron core 1. An oil brush 44 is installed inside the inner groove 41. An oil bin 43 is installed inside the iron core 1. The oil brush 44 is connected to the oil bin 43. The oil brush 44 is located on the movement track of the jacket 2. The lubricating device 4 also includes a plurality of thin tubes 45, one section of the plurality of thin tubes 45 is installed inside the oil brush 44, and another section of the plurality of thin tubes 45 is located inside the oil bin 43. An oil pipe 42 is installed on the inner wall of the oil bin 43. The oil pipe 42 passes through the outer wall of the iron core 1. A boost plug 47 is slidably installed on the inner wall of the oil bin 43, and a spherical rod 4 is installed on the boost plug 47. 6. The spherical rod 46 is slidably installed on the inner wall of the iron core 1, and the top of the spherical rod 46 is located on the movement trajectory of the jacket 2. The bottom of the boost plug 47 is connected with a spring piece 48, and the spring piece 48 is connected to the inner wall of the oil bin 43. When the jacket 2 contacts the spherical rod 46, the jacket 2 applies pressure to the spherical rod 46 along the arc surface of the top of the spherical rod 46, so that the jacket 2 drives the spherical rod 46 to move downward, and the spherical rod 46 drives the boost plug 47 to move downward. During the downward movement of the boost plug 47, the lubricating oil inside the oil bin 43 is squeezed, so that the lubricating oil is added to the oil brush 44 through multiple capillaries 45. Since the inner wall of the jacket 2 continues to contact the oil brush 44 during the movement, the oil brush 44 can apply the lubricating oil to the inner wall of the jacket 2.

[0031] In this embodiment, by setting the lubricating device 4, during the installation of the jacket 2, the oil brush 44 can continuously apply lubricating oil to the inner wall of the jacket 2, thereby maintaining the lubrication between the jacket 2 and the core 1, making the installation process more labor-saving and improving work efficiency. In addition, the lubricating device 4 can recycle excess lubricating oil to prevent waste, thereby avoiding the increase of friction between the jacket 2 and the core 1 after long-term use, thereby causing difficulty in replacement.

[0032] When the micro-concave coating roller of the utility model is in use, the staff will sleeve the jacket 2 on the iron core 1 through the handle 21, and perform the replacement operation through the handle 21, so as to avoid the staff from directly contacting the surface of the jacket 2, thereby causing the lines on the surface of the jacket 2 to be worn. After the limiting grooves of the jacket 2 and the iron core 1 are aligned, the limiting pin 31 is inserted, and the limiting pin 31 limits the iron core 1 and the jacket 2. When the jacket 2 is installed, the coating operation is carried out, and the iron core 1 drives the jacket 2 to rotate by rotating, and the jacket 2 coats the material on its surface by rotating. When coating with different thicknesses or different lines is required, the staff puts the limiting pin 3 After the jacket 1 is pulled out, the jacket 2 is pulled out, and a different jacket 2 is replaced, and the above steps are repeated. Through the setting of multiple jackets 2, it can be quickly replaced according to the coating thickness design requirements of different products. Since only the jacket 2 needs to be replaced, the iron core 1 does not need to be replaced, and the replacement process is more convenient, which improves the work efficiency and reduces the material cost. Through the setting of the limit component 3, the jacket 2 is prevented from sliding during the process of the iron core 1 driving the jacket 2 to rotate, which affects the coating effect. After the limit pin 31 is pulled out, the installation belt 32 hangs the limit pin 31 on the iron core 1, which is convenient for the staff to take it and avoids the staff from accidentally losing it;

[0033] The staff adds the lubricating oil into the oil bin 43 through the oil pipe 42 in advance. During the process of the jacket 2 being sleeved on the iron core 1, the inner wall of the jacket 2 will contact the spherical rod 46. When the jacket 2 contacts the spherical rod 46, the jacket 2 applies pressure to the spherical rod 46 along the arc surface of the top of the spherical rod 46, so that the jacket 2 drives the spherical rod 46 to move downward, and the spherical rod 46 drives the boost plug 47 to move downward. During the downward movement of the boost plug 47, the lubricating oil inside the oil bin 43 is squeezed, so that the lubricating oil is added to the oil brush 44 through multiple capillaries 45. Since the inner wall of the jacket 2 will continue to contact the oil brush 44 during the movement, the oil brush 44 can apply the lubricating oil to the inner wall of the jacket 2, and the excess lubricating oil on the inner wall of the jacket 2 will be scraped into the inner groove 41 by the edge of the inner groove 41, so as to avoid local coating of the inner wall of the jacket 2 Too much lubricating oil is applied. When the inner wall of the jacket 2 is not in contact with the spherical rod 46, the spherical rod 46 and the boost plug 47 are reset by the elastic force of the spring piece 48. After the boost plug 47 is reset, the inside of the oil tank 43 is in a negative pressure state. The lubricating oil temporarily retained in the inner groove 41 is drawn back by the oil brush 44 and multiple thin tubes 45 inside the oil tank 43, thereby achieving the effect of recycling excess lubricating oil. Through the provision of the lubricating device 4, during the installation of the jacket 2, the oil brush 44 can continuously apply lubricating oil to the inner wall of the jacket 2, maintaining the lubrication between the jacket 2 and the core 1, making the installation process more labor-saving and improving work efficiency. In addition, the lubricating device 4 can recycle excess lubricating oil to prevent waste, and avoid the increase of friction between the jacket 2 and the core 1 after long-term use, thereby causing difficulty in replacement.

[0034] The above implementation methods are only used to illustrate the embodiments of the present utility model, and are not limitations of the embodiments of the present utility model. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the embodiments of the present utility model. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present utility model. The patent protection scope of the embodiments of the present utility model should be limited by the claims.

Claims

1. A micro-concave coating roller, characterized in that: include: Iron core (1); Jacket (2); A limiting component (3) is used to limit the iron core (1) and the jacket (2); A lubricating device (4) for lubricating the jacket (2) when it is installed; The iron core (1) is sleeved with the jacket (2), the lubricating device (4) is installed inside the iron core (1), the lubricating device (4) comprises an inner groove (41), the inner groove (41) is opened on the outer wall of the iron core (1), an oil brush (44) is installed inside the inner groove (41), an oil bin (43) is installed inside the iron core (1), the oil brush (44) is connected to the oil bin (43), the oil brush (44) is located on the movement track of the jacket (2), and a handle (21) is installed on the jacket (2).

2. A concave coating roller according to claim 1, characterized in that: The diameter range of the iron core (1) and the jacket (2) when they are sleeved together is 40 mm to 100 mm, and the length range of the iron core (1) and the jacket (2) when they are sleeved together is 500 mm to 2500 mm.

3. A concave coating roller according to claim 2, characterized in that: The thickness of the jacket (2) ranges from 10 mm to 20 mm. The jacket (2) is provided in plurality, and the surfaces of the plurality of jackets (2) are provided with pyramid-shaped, quadrilateral, oblique-shaped, and hexagonal patterns, respectively. The surfaces of the plurality of jackets (2) can also be provided with patterns of the same shape but different mesh numbers, and the mesh number range of the patterns is 30 to 250.

4. A concave coating roller according to claim 3, characterized in that: The limit assembly (3) comprises a limit pin (31), the limit pin (31) and the iron core (1) are both provided with limit slots, the limit pin (31) is slidably connected to the limit slots of the iron core (1) and the jacket (2), the limit pin (31) is connected to a mounting belt (32), and the mounting belt (32) is connected to the iron core (1).

5. A concave coating roller according to claim 4, characterized in that: The lubricating device (4) further comprises a plurality of thin tubes (45), one section of each of the plurality of thin tubes (45) is installed inside the oil brush (44), and another section of each of the plurality of thin tubes (45) is located inside the oil bin (43).

6. A concave coating roller according to claim 5, characterized in that: An oil pipe (42) is installed on the inner wall of the oil bin (43), and the oil pipe (42) passes through the outer wall of the iron core (1).

7. A concave coating roller according to claim 6, characterized in that: A boost plug (47) is slidably mounted on the inner wall of the oil bin (43), a spherical rod (46) is mounted on the boost plug (47), the spherical rod (46) is slidably mounted on the inner wall of the iron core (1), the top of the spherical rod (46) is located on the movement trajectory of the jacket (2), and the bottom of the boost plug (47) is connected to a spring sheet (48), and the spring sheet (48) is connected to the inner wall of the oil bin (43).

Images