High-definition three-dimensional glue-free composite embossing structure

Abstract

The utility model discloses a high-definition three-dimensional glue-free composite knurling structure, which relates to the technical field of household paper knurling equipment and comprises two composite rubber rollers and two composite steel rollers, a primary knurling area is formed between the composite steel rollers and the composite rubber rollers, and roller surfaces of the two composite steel rollers are attached to form a secondary knurling area; paper of the arc-shaped guide roller enters the primary embossing area from the two paper inlets and then enters the secondary embossing area. According to the high-definition three-dimensional glue-free composite embossing structure and the embossing process, the single face of the paper is embossed in the primary embossing area through the composite rubber roller and the composite steel roller, point-shaped textures and strip-shaped contours with the single faces protruding inwards are formed, the throwing degree of the paper is increased, double-face composite embossing is formed in the secondary embossing area of the paper, and the paper can be subjected to high-definition three-dimensional glue-free composite embossing. And the stereoscopic impression and definition of double-sided embossing of the paper are improved. The strip-shaped edge locking strips are pressed more tightly under the pressing of the point-shaped edge locking strips, so that the paper is pressed more firmly, the point-shaped textures form a plurality of protruding bag-shaped structures on the paper, more air is stored, and the paper is softer.

Description

Technical Field

[0001] The utility model relates to the technical field of embossing equipment for daily use paper, in particular to a high-definition three-dimensional glue-free composite embossing structure. Background Art

[0002] In the field of household paper, paper products are generally obtained by laminating multiple layers of paper with a composite roller. For composite paper products composed of three or more layers of paper, there is a problem of poor lamination effect. When the paper reaches a certain quantity and thickness, the traditional embossing composite method is used to laminate multiple layers of base paper together, which requires a lot of pressure to be applied to the composite roller. In actual use, the roller surface is easy to wear and is not durable, and the paper is easy to stick to the roller, reducing production capacity. In addition, the produced paper products are prone to stratification, poor aesthetics, and large differences between the front and back, which greatly affects the consumer experience. The gluing composite method is complex in structure, difficult to operate, and not suitable for sensitive skin or babies.

[0003] CN202011135615.7 discloses a glue-free composite device and glue-free composite paper material with good composite firmness, beautiful appearance, three-dimensional sense, strong layers, soft touch, and durable and reliable roller body, comprising an embossing roller and a pressing roller resting on the roller surface of the embossing roller, the roller surface of the embossing roller is formed with a plurality of patterned bosses, and a first base paper is fed between the embossing roller and the pressing roller to be embossed to form a concave pattern.

[0004] Glue-free composite tissues are safer and avoid skin irritation or allergic reactions caused by glue, but the composite firmness between composite papers needs to be improved. Existing glue-free composite embossed papers are easy to separate, the double-sided patterns are not obvious, and the three-dimensional sense and feel are poor. Utility Model Content

[0005] The utility model aims to at least solve the technical problems existing in the prior art that "paper with adhesive composite embossing is easy to separate, the double-sided patterns are not obvious, the pattern clarity and three-dimensional sense are poor, the difference between the back and the front is large, the hand feel is poor, and the embossing roller is easy to stick to the paper and is not durable." To this end, the utility model proposes a high-definition three-dimensional adhesive-free composite embossing structure, which can enhance the three-dimensional sense of the double-sided patterns of the paper, and the secondary embossing forms multiple airbag-like structures and strengthens the composite lock edge structure, which improves the softness of the paper while enhancing the adhesive-free composite firmness of the paper.

[0006] According to some embodiments of the present invention, the high-definition three-dimensional glue-free composite embossing structure includes an arc-shaped guide roller, which is used to guide paper transportation; including:

[0007] Two composite rubber rollers are rotatably arranged on one side of the arc-shaped guide roller;

[0008] Two composite steel rollers are respectively arranged on one side of the two composite rubber rollers, and are respectively fitted with the roller surfaces of the two composite rubber rollers to form two paper inlets, a primary embossing area is formed between the composite steel roller and the composite rubber roller, and the roller surfaces of the two composite steel rollers are fitted to form a secondary embossing area; the paper on the arc-shaped guide roller enters the primary embossing area and then enters the secondary embossing area from the two paper inlets respectively;

[0009] The roller surface of the composite steel roller is provided with a dot-shaped boss, a dot-shaped edge-locking boss and a strip-shaped edge-locking boss. The dot-shaped boss is conical and used to emboss dot-shaped textures on paper. The strip-shaped edge-locking boss is long and used to emboss edge-locking strips on paper to separate dot-shaped textures. The dot-shaped edge-locking boss is truncated and arranged on the strip-shaped edge-locking boss, and used to emboss dot-shaped edge-locking on the strip-shaped edge-locking strip.

[0010] The two composite steel rollers are divided into an upper composite surface roller and a lower composite bottom roller. The difference between the composite surface roller and the composite bottom roller is that the composite surface roller is provided with the dot-shaped edge locking boss more than the composite bottom roller.

[0011] The paper is embossed with single-sided patterns in the two primary embossing areas, and is compositely embossed in the secondary embossing area to form double-sided three-dimensional embossing.

[0012] According to some embodiments of the utility model, the positions of the dot-shaped bosses and the strip-shaped locking bosses of the two composite steel rollers correspond to each other. When the two composite steel rollers are attached, the bosses on the two roller surfaces are pressed against each other to emboss the texture on the paper for the second time, so as to form a three-dimensional sac-like structure for the dot-shaped texture and to reinforce the strip-shaped locking strip for the dot-shaped locking.

[0013] According to some embodiments of the utility model, the strip-shaped locking edge bosses are surrounded to form a plurality of matrices, and a plurality of the dot-shaped bosses are arranged in the matrix; the matrix is ​​embossed on paper to form the three-dimensional sac-like structure, and air is temporarily stored in the three-dimensional sac-like structure.

[0014] According to some embodiments of the utility model, the width of the strip-shaped locking edge boss is 0.6 mm to 1.0 mm, and the diameter of the point-shaped boss is 0.5 mm to 0.6 mm, and is conical in shape.

[0015] According to some embodiments of the present invention, the diameter of the dot-shaped edge locking boss is 0.1 mm to 0.2 mm.

[0016] According to some embodiments of the utility model, the roller surface of the composite steel roller is provided with a pattern boss, and the pattern boss adopts the structure of the dot-shaped locking boss and the strip-shaped locking boss; the height of the dot-shaped boss is lower than the height of the strip-shaped locking boss and the pattern boss.

[0017] According to some embodiments of the utility model, a brush roller is included, and the brush roller is arranged on one side of the composite steel roller, and the brush roller is used to clean the roller surface of the composite steel roller.

[0018] According to some embodiments of the present utility model, the middle portion of the arc-shaped guide roller is arranged in an arc shape.

[0019] According to some embodiments of the utility model, the high-definition three-dimensional glue-free composite embossing structure is mounted on a frame, and the high-definition three-dimensional glue-free composite embossing structure is provided with two groups, which are respectively arranged in the upper and lower areas of the frame.

[0020] According to some embodiments of the present invention, the high-definition three-dimensional glue-free composite embossing structure has at least the following beneficial effects: the paper is embossed on one side by the composite rubber roller and the composite steel roller in the primary embossing area to form one Inward-facing raised dot texture and striped contours The paper forms double-sided composite embossing in the secondary embossing area, which improves the clarity and three-dimensional sense of the double-sided embossing of the paper. The strip-shaped edgelocking strips are pressed more tightly under the pressing of multiple dot-shaped edgelocking, making the paper pressing more firmly. The dot-shaped texture forms multiple raised sac-like structures on the paper, which store more air and make the paper softer.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 This is a three-dimensional schematic diagram of a high-definition three-dimensional glue-free composite embossing structure according to an embodiment of the utility model;

[0024] Figure 2 This is a cross-sectional view of a high-definition three-dimensional glue-free composite embossed structure according to an embodiment of the utility model;

[0025] Figure 3 This is a paper trend diagram of the high-definition three-dimensional glue-free composite embossing structure of the embodiment of the utility model;

[0026] Figure 4 The roller surface texture diagram of the composite steel roller with a high-definition three-dimensional glue-free composite embossing structure according to the embodiment of the utility model;

[0027] Figure 5 This is an enlarged view of the strip-shaped locking edge boss of the composite steel roller with a high-definition three-dimensional glue-free composite embossing structure according to an embodiment of the utility model.

[0028] Reference numerals:

[0029] Frame 100, pressurizing mechanism 101,

[0030] The arc guide roller 110, the composite rubber roller 120, the composite steel roller 130, the dot-shaped boss 131, the strip-shaped edge-locking boss 132, the dot-shaped edge-locking boss 133, the pattern boss 134, the brush roller 140,

[0031] Paper inlet 210, primary embossing area 220, secondary embossing area 230,

[0032] Paper 300. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, top, bottom, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Reference below Figure 1-Figure 5 The invention describes a high-definition three-dimensional glue-free composite embossed structure according to an embodiment of the utility model.

[0038] like Figure 1-Figure 5As shown, the high-definition three-dimensional glue-free composite embossing structure includes an arc-shaped guide roller 110, two composite rubber rollers 120 and two composite steel rollers 130. Specifically, the paper 300 is transported from the paper roller to the high-definition three-dimensional glue-free composite embossing structure, and the paper 300 is separated from the arc-shaped guide roller 110 and transported to the two composite rubber rollers 120 respectively.

[0039] The two composite rubber rollers 120 are respectively rotatably arranged on one side of the arc-shaped guide roller 110. The two composite steel rollers 130 are respectively arranged on one side of the two composite rubber rollers 120, and are respectively attached to the roller surfaces of the two composite rubber rollers 120 to form two paper inlets 210, a primary embossing area 220 is formed between the composite steel roller 130 and the composite rubber roller 120, and the roller surfaces of the two composite steel rollers 130 are attached to form a secondary embossing area 230. The paper 300 of the arc-shaped guide roller 110 enters the primary embossing area 220 and then enters the secondary embossing area 230 from the two paper inlets 210. The separated paper needs to pass through the primary embossing area 220 and then be combined with another separated paper to pass through the secondary embossing area 230, and finally form a composite paper 300.

[0040] The roller surface of the composite steel roller 130 is provided with a dot-shaped boss 131, a dot-shaped edge-locking boss 133 and a strip-shaped edge-locking boss 132. The dot-shaped boss 131 is conical and used to emboss a dot-shaped texture on the paper 300. The strip-shaped edge-locking boss 132 is long and used to emboss an edge-locking strip on the paper 300 to separate the dot-shaped texture. The dot-shaped edge-locking boss 133 is truncated and arranged on the strip-shaped edge-locking boss 132, and is used to emboss a dot-shaped edge-locking strip on the edge-locking strip. The paper 300 is embossed with a single-sided pattern in the two primary embossing areas 220, and is compositely embossed in the secondary embossing area 230 to form a double-sided three-dimensional embossing.

[0041] Specifically, the composite steel roller 130 is a structure for embossing patterns and non-glue composite on the paper 300, and the boss structure set on its roller surface determines the final forming quality of the paper 300. In this embodiment, in the primary embossing area 220, the composite steel roller 130 cooperates with the composite glue roller 120 to emboss the single side of the separated paper to form a single-sided texture. In the secondary embossing area 230, the boss structures of the two composite steel rollers 130 perform composite counter-pressure on the single-sided textures on both sides of the paper 300, so that the textures on both sides of the paper 300 are pressed together to form a double-sided three-dimensional texture.

[0042] The two composite steel rollers 130 are divided into an upper composite surface roller and a lower composite bottom roller. The difference between the composite surface roller and the composite bottom roller is that the composite surface roller is provided with more dot-shaped locking bosses 133 than the composite bottom roller.

[0043] The existing technology is currently unable to print a paper 300 with the same three-dimensional effect and clarity on both sides. The three-dimensional effect and clarity of one side are always weaker than the other side, resulting in the paper 300 having poor three-dimensional effect, clarity and poor hand feel.

[0044] In this embodiment, two composite steel rollers 130 are used to simultaneously emboss both sides of the paper 300. The paper 300 is more tightly laminated by the counter-pressure of the strip-shaped locking boss 132 and the dot-shaped locking boss 133. The dot-shaped locking boss 133 embosses a plurality of dot-shaped locking edges on the strip-shaped locking edge strip, making the strip-shaped locking edge strip more tightly embossed, and the firmness is close to that of the paper 300 laminated with glue.

[0045] The dot textures on both sides of the paper 300 are pressed against each other, and the paper 300 around the dot textures is affected by stress to form a fluffy layered structure, and there are multiple dot textures on the paper 300, so that the fluffy structures between adjacent dot textures are fixed at a specified position. Multiple fluffy structures are formed on the paper 300, which has an effect similar to an airbag, and air is filled in the multiple layers of paper 300, presenting a fluffy and soft effect.

[0046] When the number of layers of paper 300 is the same, the paper 300 embossed with the high-definition three-dimensional glue-free composite embossing structure of this embodiment is more firm, and the embossed softness of the paper 300 is better, and the three-dimensional embossing effect with consistent effect is formed on both sides, which greatly improves the embossing quality and softness of the glue-free composite embossing.

[0047] In some embodiments of the present invention, Figure 2-Figure 4 As shown, the positions of the dot-shaped bosses 131 and the strip-shaped locking bosses 132 of the two composite steel rollers 130 correspond to each other. When the two composite steel rollers 130 are attached to each other, the bosses on the two roller surfaces are pressed against each other to emboss the texture on the paper 300 for the second time, so as to form a three-dimensional capsule-like structure with the dot-shaped texture and reinforce the strip-shaped locking strip with the dot-shaped locking.

[0048] Specifically, in order to enable the paper 300 to form a double-sided three-dimensional embossing effect in the secondary embossing area 230, the boss positions of the two composite steel rollers 130 need to correspond to each other, that is, the dot-shaped bosses 131 and the strip-shaped locking bosses 132 of the two composite steel rollers 130 correspond to each other to avoid the formation of disordered patterns during the embossing process. The secondary embossing mainly combines the separated papers together to form a pattern texture strip contour texture. The dot-shaped locking boss 133 is arranged on the strip-shaped locking boss 132. When the strip-shaped locking bosses 132 of the two composite steel rollers 130 are aligned, the dot-shaped locking bosses 133 on the two roller surfaces are naturally aligned. During the secondary embossing process, the boss structures of the two composite steel rollers 130 are pressed against each other, and the pressure acting on the paper 300 increases, and the three-dimensional sense and clarity of the double-sided pattern of the paper 300 are stronger and the consistency is better. The strip-shaped locking strip on the paper 300 is tightly pressed by the dot-shaped locking, which enhances the firmness of the strip-shaped locking strip.

[0049] In some embodiments of the present invention, Figure 3 and Figure 4As shown, the strip-shaped edge-locking bosses 132 surround to form a plurality of matrices, and a plurality of dot-shaped bosses 131 are arranged in the matrix. The matrix is ​​embossed on the paper 300 to form a three-dimensional capsule-like structure, and air is temporarily stored in the three-dimensional capsule-like structure.

[0050] Specifically, a plurality of square matrices are formed on the paper 300, and a plurality of dot-shaped textures are embossed in each matrix, and fluffy structures are formed between the dot-shaped textures, so that a plurality of three-dimensional capsule-shaped structures are formed in each matrix, and the capsule-shaped structures are more loose and soft due to the air filling. In addition, the capsule-shaped structures on the paper 300 are three-dimensional structures, so that the softness of both sides of the paper 300 is equal, and the texture of the paper 300 is improved.

[0051] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the width of the strip-shaped locking edge boss 132 is 0.6 mm to 1.0 mm, and the diameter of the dot-shaped boss (131) is 0.5 mm to 0.6 mm, and is conical.

[0052] Specifically, in this embodiment, the strip-shaped locking edge boss 132 has a width of 0.7 mm, which meets the adhesive-free composite compression strength. The dot-shaped boss 131 has a diameter of 0.5 mm and is conical. The dot-shaped boss 131 has a suitable diameter and arrangement spacing, which can enable different numbers of saccular structures to be embossed in the matrix. In order to increase the number of saccular structures in a single matrix and effectively improve the softness of the paper 300, the spacing between the dot-shaped bosses 131 is about 0.85 mm.

[0053] In a further embodiment, Figure 4 and Figure 5 As shown, the diameter of the dot-shaped locking edge boss 133 is 0.1 mm to 0.2 mm. Specifically, the dot-shaped locking edge boss 133 needs to be stamped on the strip-shaped locking edge strip to enhance the composite pressure of the strip-shaped locking edge strip. In order to stamp more dot-shaped locking edges on the strip-shaped locking edge strip, in this embodiment, the diameter of the dot-shaped locking edge boss 133 is 0.15 mm.

[0054] In some embodiments of the present invention, Figure 3-Figure 5 As shown, the roller surface of the composite steel roller 130 is provided with a pattern boss 134, and the pattern boss 134 adopts the structure of a dot-shaped edge locking boss 133 and a strip-shaped edge locking boss 132. The height of the dot-shaped boss 131 is lower than the height of the strip-shaped edge locking boss 132 and the pattern boss 134. In this embodiment, the specific structures of the dot-shaped boss 131, the strip-shaped edge locking boss 132, the pattern boss 134 and the dot-shaped edge locking boss 133 can be engraved with different patterns and designs according to customer requirements.

[0055] The composite steel roller 130 adopts a high-low pattern structure, and the dot-shaped boss 131 is slightly lower than the strip-shaped edge-locking boss 132 and the pattern boss 134. During the first embossing, the composite rubber roller 120 presses the composite steel roller 130 to form a single-sided inwardly protruding dot-shaped texture and strip-shaped contour, which increases the polish of the paper and makes the paper softer.

[0056] After passing through the arc guide roller 110, the paper is divided into two parts and enters the primary embossing area from the upper and lower composite rubber rollers 120. Its function is to make the raised dot texture face inward during the secondary composite embossing after the primary embossing, so as to obtain better hand feel and aesthetics.

[0057] During the second embossing, the composite steel roller 130 is used to apply pressure to the strip-shaped locking edge boss 132 and the pattern boss 134 to combine the paper together. Since the dot-shaped boss 131 is slightly lower than the strip-shaped locking edge boss 132 and the pattern boss 134, and the steel-to-steel hard pressing method is used, the second embossing will only produce pressure on the locking edge boss 132 and the pattern boss 134, thereby retaining the paper polish produced by the first embossing, so that it forms multiple three-dimensional sac-like structures. This embossing method can enhance the three-dimensional sense of the double-sided pattern of the paper, increase the clarity of the stripes, and eliminate the difference in patterns on the front and back.

[0058] Specifically, in addition to the matrix formed by the embossed strip-shaped locking strips and the capsule-shaped structure formed by the dot-shaped texture on the paper 300, in order to increase the pattern diversity of the paper 300, a pattern boss 134 is provided on the composite steel roller 130, and the pattern boss 134 is located at the intersection of the strip-shaped locking boss 132. In order to enable the pattern boss 134 to be embossed to form a firm three-dimensional pattern, the structure of the pattern boss 134 is equal to that of the strip-shaped locking boss 132 and the dot-shaped locking boss 133, so that a three-dimensional and firm pattern can be formed on both sides of the paper 300.

[0059] Specifically, the composite steel roller 130 is divided into a composite surface roller and a composite bottom roller, the roller surface of the composite surface roller is provided with a dotted boss 131, a strip-shaped edge-locking boss 132 and a pattern boss 134, and a dotted edge-locking boss 133 is provided on the strip-shaped edge-locking boss 132 and the pattern boss 134. The roller surface of the composite bottom roller is provided with a dotted boss 131, a strip-shaped edge-locking boss 133 and a pattern boss 134, but no dotted edge-locking boss 133.

[0060] The dot-shaped bosses 131, strip-shaped edge-locking bosses 132 and pattern bosses 134 of the two composite steel rollers 130 correspond to each other, and a gear is provided at one end of the two composite steel rollers 130 to ensure their synchronization. After the dot-shaped edge-locking bosses 133 are added to the roller surface of the composite surface roller, the pressed paper is more firmly laminated, not easy to delaminate, and has improved aesthetics.

[0061] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, a brush roller 140 is included. The brush roller 140 is disposed on one side of the composite steel roller 130 . The brush roller 140 is used to clean the roller surface of the composite steel roller 130 .

[0062] Specifically, the composite steel roller 130 is continuously cleaned by the brush roller 140 during the rotation process to prevent dust or fibers from adhering to the roller surface and affecting the printing quality of the paper 300. The brush roller 140 is a technical solution well known to those skilled in the art and will not be described in detail in this embodiment.

[0063] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the middle part of the arc guide roller 110 is arranged in an arc shape. Specifically, the middle part of the arc guide roller 110 is arc-shaped and extends to both ends. The arc guide roller 110 is made of rubber material, and the friction force is greater during the rotation process. During the rotation process, the paper 300 is flattened, and the conveying effect is more stable. The flatness of the paper 300 when entering the primary embossing area 220 and the secondary embossing area 230 of the two composite rubber rollers 120 and the composite steel roller 130 is ensured.

[0064] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the high-definition three-dimensional glue-free composite embossing structure is mounted on the frame 100 , and two groups of the high-definition three-dimensional glue-free composite embossing structure are arranged, respectively arranged in the upper and lower areas of the frame 100 .

[0065] Specifically, the high-definition three-dimensional glue-free composite embossing structure is installed on the frame 100 of the embossing equipment. The embossing equipment in this embodiment has a double station, that is, the upper and lower parts of the frame 100 are respectively provided with high-definition three-dimensional glue-free composite embossing structures, which can simultaneously emboss two rolls of paper 300, effectively improving the embossing efficiency.

[0066] The frame 100 is also provided with a plurality of guide rollers for guiding the paper 300 to be transported, which is a technical solution well known to those skilled in the art and will not be described in detail in this embodiment. In the embossing device, a pressure mechanism 101 for adjusting the pressure and position of the composite rubber roller 120 and the composite steel roller 130 is also provided. The pressure mechanism 101 applies pressure to the composite rubber roller 120 and the composite steel roller 130 through a cylinder and a pressure arm. The pressure can be adjusted according to the number of layers and thickness of the paper, and the position can be adjusted to facilitate paper feeding. The pressure mechanism 101 is a technical solution well known to those skilled in the art and will not be described in detail in this embodiment.

[0067] like Figure 2 and Figure 3As shown, the embossing process of the high-definition three-dimensional glue-free composite embossing structure includes the above-mentioned high-definition three-dimensional glue-free composite embossing structure. The embossing structure of this embodiment can achieve a 4K-level resolution printing effect, making the pattern on the paper more three-dimensional and high-definition.

[0068] The specific steps include:

[0069] S10: Paper feeding, after being separated by the arc-shaped guide roller 110, the paper 300 enters the primary embossing area 220 from the two paper inlets 210. The paper 300 is separated at the arc-shaped guide roller 110 to form different layers of paper 300 and transported to the two paper inlets 210. The layers of paper 300 at the two paper inlets 210 may be the same or different.

[0070] S20 is a one-time embossing process. The paper 300 enters the one-time embossing area 220. The side of the paper 300 close to the composite steel roller 130 is embossed once through the dot-shaped boss 131 and the strip-shaped edge-locking boss 132 to form a single-sided texture. The dot-shaped texture and strip-shaped contour that are raised inward on one side are pressed out to increase the softness and polish of the paper.

[0071] S30 Secondary embossing: the separated paper comes out of the primary embossing area 220 and overlaps and merges before entering the secondary embossing area 230. The two composite steel rollers 130 composite emboss both sides of the paper 300 at the same time. The strip-shaped edgelocking bosses 132 and the pattern bosses 134 form a double-sided three-dimensional strip-shaped edgelocking strip and pattern texture on the paper 300. The dot-shaped edgelocking bosses 133 form multiple composite dot-shaped edgelocking strips on the strip-shaped edgelocking strip. It is used for pattern pressing on paper, firmly composites multiple layers of paper together, retains the first embossing angle of the paper 300, and forms multiple three-dimensional capsule structures.

[0072] The dot-shaped edge locking bosses 133 form multiple composite dot-shaped edge locking on the strip-shaped edge locking strip, and multiple dot-shaped textures in the strip-shaped edge locking strip are combined to form a capsule-shaped layer, thereby forming a matrix of strip-shaped edge locking strips and multiple dot-shaped textures forming a capsule-shaped structure on the paper 300 .

[0073] S40: paper composite conveying, the paper 300 after composite embossing is conveyed from the secondary embossing area 230 to the next station.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0075] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A high-definition three-dimensional glue-free composite embossing structure, comprising an arc-shaped guide roller (110), wherein the arc-shaped guide roller (110) is used to guide the paper (300) to be transported; characterized in that: include: Two composite rubber rollers (120) are rotatably arranged on one side of the arc-shaped guide roller (110); Two composite steel rollers (130) are respectively arranged on one side of the two composite rubber rollers (120), and are respectively bonded with the roller surfaces of the two composite rubber rollers (120) to form two paper feed ports (210); a primary embossing area (220) is formed between the composite steel roller (130) and the composite rubber roller (120); and the roller surfaces of the two composite steel rollers (130) are bonded to form a secondary embossing area (230); the paper (300) of the arc-shaped guide roller (110) enters the primary embossing area (220) and then enters the secondary embossing area (230) from the two paper feed ports (210); The roller surface of the composite steel roller (130) is provided with a dot-shaped boss (131), a dot-shaped edge-locking boss (133) and a strip-shaped edge-locking boss (132); the dot-shaped boss (131) is truncated cone-shaped and is used to emboss a dot-shaped texture on the paper (300); the strip-shaped edge-locking boss (132) is long and is used to emboss an edge-locking strip on the paper (300) to separate the dot-shaped texture; the dot-shaped edge-locking boss (133) is truncated cone-shaped and is provided on the strip-shaped edge-locking boss (132) and is used to emboss a dot-shaped edge-locking on the strip-shaped edge-locking strip; the two composite steel rollers (130) are divided into an upper composite surface roller and a lower composite bottom roller; the difference between the composite surface roller and the composite bottom roller is that the composite surface roller is provided with the dot-shaped edge-locking boss (133) more than the composite bottom roller; The paper (300) is embossed with a single-sided pattern in the two primary embossing areas (220), and is compositely embossed in the secondary embossing area (230) to form a double-sided three-dimensional embossing.

2. The high-definition three-dimensional glue-free composite embossed structure according to claim 1 is characterized in that: The positions of the dot-shaped bosses (131) and the strip-shaped edge-locking bosses (132) of the two composite steel rollers (130) correspond to each other. When the two composite steel rollers (130) are attached to each other, the bosses on the two roller surfaces are pressed against each other to emboss the paper (300) for a second time, so as to form a three-dimensional capsule-like structure for the dot-shaped texture and to reinforce the strip-shaped edge-locking strip for the dot-shaped edge-locking.

3. The high-definition three-dimensional glue-free composite embossed structure according to claim 2 is characterized in that: The strip-shaped edge-locking bosses (132) are surrounded to form a plurality of matrices, and a plurality of the dot-shaped bosses (131) are arranged in the matrix; the matrix is ​​embossed on the paper (300) to form the three-dimensional sac-like structure, and air is temporarily stored in the three-dimensional sac-like structure.

4. The high-definition three-dimensional glue-free composite embossed structure according to claim 3 is characterized in that: The strip-shaped edge-locking boss (132) has a width of 0.6 mm to 1.0 mm, and the dot-shaped boss (131) has a diameter of 0.5 mm to 0.6 mm, and is conical in shape.

5. The high-definition three-dimensional glue-free composite embossed structure according to claim 4 is characterized in that: The diameter of the dot-shaped edge-locking boss (133) is 0.1 mm to 0.2 mm.

6. The high-definition three-dimensional glue-free composite embossed structure according to claim 1, characterized in that: The roller surface of the composite steel roller (130) is provided with a pattern boss (134), and the pattern boss (134) adopts the structure of the dot-shaped edge locking boss (133) and the strip-shaped edge locking boss (132); The height of the dot-shaped boss (131) is lower than the heights of the strip-shaped edge-locking boss (132) and the pattern boss (134).

7. The high-definition three-dimensional glue-free composite embossed structure according to claim 1, characterized in that: It comprises a brush roller (140), wherein the brush roller (140) is arranged on one side of the composite steel roller (130), and the brush roller (140) is used to clean the roller surface of the composite steel roller (130).

8. The high-definition three-dimensional glue-free composite embossed structure according to claim 1, characterized in that: The middle portion of the arc-shaped guide roller (110) is arranged in an arc shape.

9. The high-definition three-dimensional glue-free composite embossed structure according to any one of claims 1 to 8, characterized in that: The high-definition three-dimensional glue-free composite embossed structure is mounted on a frame (100), and two groups of the high-definition three-dimensional glue-free composite embossed structure are arranged, respectively arranged in the upper and lower areas of the frame (100).

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