• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a coating roller, comprising a roller body with an at least two-layer coating of at least a portion of its outer surface. The varnishing roller is characterized in that the coating of the roller body has an inner rubber-elastic layer and an outer rubber-elastic layer, the inner rubber-elastic layer being arranged between the outer surface of the roller body and the outer rubber-elastic layer, while a surface of the through the outer rubber-elastic layer Paint roller is formed.
    公开号:AT521339A2
    申请号:T50444/2019
    申请日:2019-05-16
    公开日:2019-12-15
    发明作者:Broermann Mike；Deters Andreas
    申请人:Internorm Kunststofftechnk Gmbh；
    IPC主号:
    专利说明:

    Summary
    The invention relates to a coating roller, comprising a roller body with an at least two-layer coating of at least a portion of its outer surface. The coating roller is characterized in that the coating of the roller body has an inner rubber-elastic layer and an outer rubber-elastic layer, the inner rubber-elastic layer being arranged between the outer surface of the roller body and the outer rubber-elastic layer, while a surface of the Paint roller is formed.
    Fig. Λ / 19
    23648AT
    The invention relates to a painting roller having a roller body with an at least two-layer coating of at least a portion of its outer surface. The invention also relates to a method for producing such a two-layer coating.
    Corresponding coating rollers with a coating of polyurethane silicone or ethylene-propylene-diene rubber with a hardness of 10 to 50 Shore-A are usually used. However, these have the disadvantage that three-dimensional surfaces, for example those with grooving or structuring, cannot be adequately painted, and complete application of dye or lacquer to the entire surface is not possible. Components of this type, for example room doors, front doors, furniture or furniture elements, must then be painted manually.
    In order to achieve a better dye or varnish application even with three-dimensional surfaces, attempts have been made to produce the coating of a varnishing roller from very soft silicone. Varnishing rollers with a coating of very soft silicone, however, only have a very short service life of sometimes just one day, so that their use has proven to be uneconomical.
    / 19th
    Alternatively, two-layer coatings were developed from an inner foam layer and an outer polyurethane layer. However, these two-layer coatings made of foam and polyurethane are characterized by a very complex production. Foam sheets are first cut and glued to the roll body using adhesive. At the respective ends of the foam sheets, they are then butt-glued or worked on at an angle and glued overlapping. This results in an axial butt weld at their connection, which leads to a higher hardness and lower strength of the coating in the area of the butt weld. If insufficiently wide or thick foam cuts are used, additional seams are created between the individual foam cuts. In a further, necessary processing step, the foam layer must then be rotated or ground to the desired dimension.
    The object of the invention is therefore to provide a coating roller which is technically improved on the one hand, i.e. it is also suitable to paint three-dimensional surfaces with grooves, millings or the like and to have a coating that is uniformly hard over their entire circumference, and on the other hand to be easier and less expensive to produce.
    This object is achieved with a painting roller with the features of claim 1 and a method for producing a two-layer coating of a painting roller with the features of claim 10. Further developments and advantageous configurations are specified in the respective subordinate claims.
    / 19th
    The coating roller, which has a roller body with an at least two-layer coating of at least a portion of its outer surface, is distinguished according to the invention in that the two-layer coating of the roller body has an inner rubber-elastic layer and an outer rubber-elastic layer, the inner rubber-elastic layer between the outer surface of the roller body and the outer rubber-elastic layer is arranged, while a surface of the coating roller is formed by the outer rubber-elastic layer. The combination of two rubber-elastic layers makes it much easier to produce the coating than the combination of foam sheets known from the prior art and a rubber-elastic layer applied thereover. The inner rubber-elastic layer can simply be poured onto the roller body and can thus be produced seamlessly without a butt seam that adversely affects hardness or strength. In addition, the use of two rubber-elastic layers enables a good chemical bond between the rubber-elastic layers.
    The flexibility and service life of the coating required for objects to be painted with three-dimensional surfaces, such as those with grooves, milling or the like, is achieved in that the two rubber-elastic layers each have a different hardness. The inner rubber-elastic layer of the two rubber-elastic layers then advantageously consists of a material composition softer than the outer rubber-elastic layer. The inner rubber-elastic layer thus gives the coating of the roller body the necessary / 19 flexible properties, while the outer rubber-elastic layer ensures that the coating does not wear out too quickly.
    In order to achieve the necessary flexibility, the inner rubber-elastic layer advantageously has a hardness of 0 to 15 Shore-A, in particular a hardness of 0 to 10 Shore-A. The outer rubber-elastic layer advantageously has a hardness of at least 15 Shore-A, in particular at least 20 Shore-A, in order to ensure a sufficient service life of the coating roller.
    In a further embodiment, the outer rubber-elastic layer is made of polyurethane, which, due to its mechanical properties, ensures the requirements for the service life of the coating roller. Castable, rubber-elastic materials are suitable as the material for the inner rubber-elastic layer. These are preferably polyurethane, polyurethane gel, ethylene-propylene-diene rubber, acrylonitrile-butadiene rubber or other castable rubber-elastic materials. A ratio of the thicknesses of the rubber-elastic layers to one another that is optimized with respect to flexibility and service life results if the outer rubber-elastic layer has a thickness that is less than 20% of the thickness of the inner rubber-elastic layer, in particular less than 15% of the thickness of the inner rubber-elastic layer , in particular less than 10% of the thickness of the inner rubber-elastic layer.
    According to a further development, a minimum thickness of the outer rubber-elastic layer may also be required, which is at least 1 mm, in particular at least 2 mm, in particular at least 3 mm.
    The roller body is preferably made of a metallic material, glass fiber reinforced plastic (GRP) or carbon fiber reinforced plastic (CFRP), so that the rubber-elastic / 19 to be applied to the roller body
    Layer advantageously adheres to the outer surface of the roller body via an adhesion promoter. The adhesive, in particular a metal-rubber adhesive, for castable polyurethane elastomers and thermoplastic polyurethane elastomers with metals and other solid materials ensures that the rubber-elastic layer and the roller body are permanently connected to one another.
    The inner rubber-elastic layer and the outer rubber-elastic layer can be glued to one another in a simple manner, the two rubber-elastic layers then being chemically crosslinked. In addition, the surfaces of the rubber-elastic layers cause them to be mechanically anchored to one another.
    According to a preferred embodiment, the inner rubber-elastic layer to the environment is completely enclosed by the outer rubber-elastic layer. The coating of the roller body thus continuously has a surface made of the harder rubber-elastic layer, whereby damage to the inner, softer rubber-elastic layer is avoided. The inner rubber-elastic layer also does not have to have as good chemical resistance as the outer rubber-elastic layer.
    A further advantage of the inner rubber-elastic layer completely enclosed by the outer rubber-elastic layer results from the fact that the outer rubber-elastic layer has a higher abrasion resistance and a higher tensile and tear propagation resistance. Since paint applied to the roller body is usually retained or stripped at the end faces of the roller body by means of a squeegee or scraper, the coating roller with end faces formed only from the outer rubber-elastic layer thus has a longer service life. The manufacture of the end faces from a material, in particular a harder material, / 19 also enables a simpler and better adjustment of the squeegee or wiper.
    According to a preferred embodiment, it can also be provided that the inner rubber-elastic layer has a trapezoidal cross section in the radial direction. The width of the inner rubber-elastic layer in the axial direction of the roller body then decreases with increasing distance from a central axis of the roller body. This leads, in particular in an end region of the coating roller, to greater dimensional stability due to the outer rubber-elastic layer which is then increasingly thicker on the outside and has greater hardness than the inner rubber-elastic layer. In addition, there is in particular also a smoother transition of the material structures of the rubber-elastic layers applied to the roller body. Both the higher dimensional stability and the smoother transition then lead on the one hand to an improved ink application with the coating roller and on the other hand simplify the stripping of superfluous ink using a squeegee or wiper.
    The dimensional stability and stability of the coating roller can also be improved in that a rubber-elastic base layer is arranged at least in sections between the inner rubber-elastic layer and the lateral surface of the roller body. This rubber-elastic base layer is at least one further layer of a rubber-elastic layer which is arranged directly on the roller body and advantageously completely covers its outer surface.
    In a further embodiment, the rubber-elastic base layer has a greater hardness than the inner rubber-elastic layer, preferably with 0 Shore-A. In a border area between the roller body and coating, less movement is thus achieved during use of the coating roller between the individual components, in particular the coating and the outer surface of the roller body, so that there is less contact between the roller body and the connection between the roller body and the inner rubber-elastic layer Burdens work. The rubber-elastic base layer therefore advantageously has a hardness between 60 Shore-A and 98 Shore-A, in particular a hardness of 95 Shore-A.
    A particularly suitable material for the base layer is the same elastomer as for the outer rubber-elastic layer.
    In order to achieve this effect of the lower load between the outer surface of the roller body and the coating, the rubber-elastic base layer can have a thickness which is equal to or less than the thickness of the outer rubber-elastic layer, in particular less than three-quarters of the thickness of the outer rubber-elastic layer, in particular half corresponds to the thickness of the outer rubber-elastic layer.
    The connection between the roller body and the rubber-elastic base layer can take place in the same way as between the roller body and the inner rubber-elastic layer with only two layers. Accordingly, this also takes place between the different elastic layers.
    According to a further development of the invention, it is also provided that the rubber-elastic base layer and the outer rubber-elastic layer are brought together at the end faces of the coating roller and completely enclose the inner rubber-elastic layer. Even with more than two rubber-elastic layers, the same results on the end faces of the coating roller / 19
    Advantages like only one inner rubber-elastic layer and one outer elastic layer.
    The invention also relates to a method for multi-layer coating of a coating roller. This method is characterized in that a first, inner rubber-elastic layer is cast at least in sections in the required thickness onto a lateral surface of a prepared roller body, and that a second, outer rubber-elastic layer is applied to the first, inner rubber-elastic layer.
    Since the inner rubber-elastic layer can be cast in the required thickness in a simple manner onto the outer surface of the roller body, the work steps of cutting to size and grinding to desired dimensions, which are necessary when using foam, are omitted, so that a simpler and more cost-effective manufacturing process is possible.
    According to a first further development, an adhesive is applied to the outer surface of the roller body before the inner rubber-elastic layer is prepared in order to prepare the roller body. The adhesive ensures an optimal hold of the inner rubber-elastic layer to be cast on the roller body. Suitable adhesives are various adhesives suitable for the adhesion of castable polyurethane elastomers and thermoplastic polyurethane elastomers to metals and other solid materials.
    According to a second development of the method, the inner and outer rubber-elastic layers are advantageously connected to one another by gluing them together, the two rubber-elastic layers in particular being chemically cross-linked so that a permanent connection between the inner and outer rubber-elastic layers / 19
    Layer arises. As an alternative or in addition to bonding the two rubber-elastic layers, an adhesion promoter can also be applied between them, which contributes to an improved connection of the two rubber-elastic layers.
    In addition to the two rubber-elastic layers, a rubber-elastic base layer can be applied to the roller body. The coating then has exactly three rubber-elastic layers. This is done in the same way as the application of the inner rubber-elastic layer. The inner rubber-elastic layer is then applied to the rubber-elastic base layer, in particular cast. The other manufacturing steps are again identical.
    An embodiment of the invention, from which further features essential to the invention may result, is shown in the drawing. Show it:
    Figure 1: a longitudinal section through a first embodiment of a
    Coating a coating roller according to the invention;
    Figure 2 shows a longitudinal section through a second embodiment of a
    Coating a coating roller according to the invention; and
    Figure 3 shows a longitudinal section through a third embodiment of a
    Coating a painting roller according to the invention.
    / 19th
    FIG. 1 shows a schematic view of a longitudinal section through a painting roller 1 according to the invention. This painting roller 1 has a cylindrical roller body 2, on the outer surface 3 of which a two-layer coating 4 is applied. The coating 4 is composed of an inner rubber-elastic layer 5 and an outer rubber-elastic layer 6. The inner rubber-elastic layer 5 is made of a polyurethane gel softer than the outer rubber-elastic layer 6 and is completely enclosed by the outer rubber-elastic layer 6 and the outer surface 3. At ends 7, 7 'of the cylindrical roller body 2, the coating 4 is made in the radial direction over its entire thickness from the material of the outer rubber-elastic layer 6. In order for the coating roller 1 to have a sufficiently flexible coating for coating three-dimensional surfaces, such as those with grooves or milling, the thickness of the inner rubber-elastic layer 5 is more than ten times that of the outer rubber-elastic layer 6.
    The coating roller T shown in FIG. 2 differs from that in FIG. 1 in that the coating 4 ″ additionally has a rubber-elastic base layer 8 between the outer surface 3 of the roller body 2 and the inner rubber-elastic layer 5. The same parts are provided with the same reference numerals in all figures. The additional rubber-elastic base layer 8 has a constant thickness over the entire length of the lateral surface 3, which is approximately half the thickness of the outer rubber-elastic layer 6.
    At the ends 7, 7 'of the coating roller T, end face regions are formed in the same way as in FIG. 1, wherein instead of the inner rubber-elastic layer 5/19, only the outer rubber-elastic layer 6 is arranged and is correspondingly thickened by the thickness of the inner rubber-elastic layer 5. The rubber-elastic base layer 8 and the outer rubber-elastic layer 6 are brought together accordingly in these end face regions at ends 7, 7 ′. The inner rubber-elastic layer 5 is thus completely enclosed.
    In FIG. 3, the ends 7, 7 'have been modified compared to the design of the coating roller 1, 1', 1 'in FIG. 2 in such a way that the inner rubber-elastic layer 5 has beveled ends. This creates a transition region 9 in which the thickness of the inner rubber-elastic layer 5 increases from the respective ends 7, 7 ', while the thickness of the outer rubber-elastic layer 6 decreases starting from the end faces. In the other features, the embodiment according to FIG. 3 corresponds to that according to FIG. 2.
    All features mentioned in the above description and in the claims can be combined in any selection with the features of the independent claim. The disclosure of the invention is thus not limited to the combinations of features described or claimed; rather, all combinations of features which make sense in the context of the invention are to be regarded as disclosed.
    / 19th
    权利要求:
    Claims (19)
    [1]
    claims
    1. painting roller (1, Γ, 1 "), having a roller body (2) with an at least two-layer coating (4, 4 ') at least a portion of its outer surface (3), characterized in that the two-layer coating (4, 4 ') of the roller body (2) has an inner rubber-elastic layer (5) and an outer rubber-elastic layer (6), the inner rubber-elastic layer (5) between the outer surface (3) of the roller body (2) and the outer rubber-elastic layer (6 ) is arranged, while a surface of the coating roller (1, Γ, 1 ") is formed by the outer rubber-elastic layer (6).
    [2]
    2. painting roller (1, 1 ', 1 ") according to claim 1, characterized in that the inner rubber-elastic layer (5) of the two rubber-elastic layers (5, 6) consists of a softer material composition than the outer rubber-elastic layer (6).
    [3]
    3. painting roller (1, 1 ', 1 ") according to one of claims 1 or 2, characterized in that the inner rubber-elastic layer (5) has a hardness of 0 to 15 Shore-A, in particular a hardness of 0 to 10 Shore- A has.
    13/19
    [4]
    4. painting roller (1, Γ, 1 ") according to one of claims 1 to 3, characterized in that the outer rubber-elastic layer (6) has a hardness of at least 15 Shore-A, in particular at least 20 Shore-A.
    [5]
    5. painting roller (1, T, 1 ") according to any one of claims 1 to 4, characterized in that the outer rubber-elastic layer (6) consists of polyurethane.
    [6]
    6. painting roller (1, T, 1 ") according to one of claims 1 to 5, characterized in that the inner rubber-elastic layer (5) consists of a castable material.
    [7]
    7. painting roller (1, 1 ", 1") according to one of claims 1 to 6, characterized in that the inner rubber-elastic layer (5) is a polyurethane, polyurethane gel, ethylene-propylene-diene rubber, acrylonitrile-butadiene Rubber or another pourable rubber-elastic material.
    [8]
    8. painting roller (1, Γ, 1 ") according to one of claims 1 to 7, characterized in that the outer rubber-elastic layer (6) has a thickness which is less than 20% of the thickness of the inner rubber-elastic layer (5), is in particular less than 15% of the thickness of the inner rubber-elastic layer (5), in particular less than 10% of the thickness of the inner rubber-elastic layer (5).
    14/19
    [9]
    9. painting roller (1, T, 1 ") according to one of claims 1 to 8, characterized in that the inner rubber-elastic layer (5) adheres to the outer surface (3) of the roller body (2) via an adhesion promoter.
    [10]
    10. painting roller (1, 1 ', 1 ") according to one of claims 1 to 9, characterized in that the inner rubber-elastic layer (5) and the outer rubber-elastic layer (6) are glued together.
    [11]
    11. painting roller (1, Γ, 1 ") according to any one of claims 1 to 10, characterized in that the inner rubber-elastic layer (5) to the environment is completely enclosed by the outer rubber-elastic layer (6).
    [12]
    12. painting roller (1, Γ, 1 ") according to one of claims 1 to 11, characterized in that between the inner rubber-elastic layer (5) and the outer surface (3) of the roller body (2) at least in sections a rubber-elastic base layer (8) is arranged.
    [13]
    13. painting roller (1 ', 1 ") according to claim 12, characterized in that the rubber-elastic base layer (8) and the outer rubber-elastic layer (6) are brought together on the end faces of the painting roller (Γ, 1") and the inner rubber-elastic layer ( 5) completely enclose.
    [14]
    14. Method for multi-layer coating (4, 4 ') of a painting roller (1, 1', 1 "), characterized in that
    [15]
    15/19 that a first, inner rubber-elastic layer (5) is cast at least in sections in the required thickness onto a lateral surface (3) of a prepared roller body (2), and that a second, outer rubber-elastic layer (5) is poured onto the first, inner rubber-elastic layer (5) Layer (2) is applied.
    15. The method according to claim 14, characterized in that in preparation for the roller body (2) before the casting of the inner rubber-elastic layer (5) an adhesive is applied to the outer surface (3) of the roller body (2).
    [16]
    16. The method according to any one of claims 14 or 15, characterized in that the inner rubber-elastic layer (5) and the outer rubber-elastic layer (6) are glued together.
    ί May 6, 2019
    16/19

    [17]
    17/19

    [18]
    18/19

    [19]
    19/19
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE102019111342A1|2019-11-21|
    AT521339A3|2020-05-15|
    AT521339B1|2020-10-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE19714645A1|1997-04-09|1998-10-15|Jagenberg Papiertech Gmbh|Web coating station roller|
    DE19954007A1|1999-06-18|2000-12-21|Voith Sulzer Papiertech Patent|Coating rollers forming nip in coating machinery used in production and finishing of paper and card, with direct or indirect application, combine quantified hardness with resilience|
    JP2002266842A|2001-03-06|2002-09-18|Ishikawajima Harima Heavy Ind Co Ltd|Roll for coating|
    JP2004290844A|2003-03-27|2004-10-21|Daiken Trade & Ind Co Ltd|Sheet painting roller and sheet painting method using the roller|
    EP2511418B1|2011-04-12|2017-07-26|SchäferRolls GmbH & Co. KG|Use of a multi-layer roller|CN111644331A|2020-06-06|2020-09-11|东莞市澳中电子材料有限公司|Low-loss micro-concave roller for coating|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102018111931|2018-05-17|
    DE102019111342.3A|DE102019111342A1|2018-05-17|2019-05-02|varnishing|
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