Four-edge embossing device suitable for household paper

Abstract

The utility model discloses a four-edge embossing device suitable for household paper, which comprises a main roller and at least two auxiliary rollers, a plurality of pattern salient points are uniformly distributed on the roller surface of the main roller, and a plurality of pattern salient points are uniformly distributed on the roller surface of the auxiliary rollers. The roller surface of the auxiliary roller is provided with at least two transverse protrusions arranged in the circumferential direction at a first rated interval and at least two vertical protrusions arranged in the axial direction at a second rated interval. Any auxiliary roller can abut against or be far away from the main roller in the radial direction, and the main roller abuts against one auxiliary roller to be matched with the auxiliary roller in a rotating and opposite-pressing mode. And at least one pattern salient point in an overlapped area between the transverse bulges and the vertical bulges of the main roller surface and the auxiliary roller surface is in periodic knurling fit with the transverse bulges and the vertical bulges of the auxiliary roller surface.

Description

Technical Field

[0001] This utility model relates to the technical field of tissue paper production equipment, and in particular to a four-sided embossing device suitable for household paper products. Background Technology

[0002] In the field of household paper products, facial tissues are an indispensable part of our daily lives, and their quality and appearance design are gradually becoming important factors for consumers when making choices. From napkins and toilet paper to facial tissues, these seemingly ordinary products often bring unexpected surprises through innovation in details. Among them, embossing technology, as an important means to improve the texture and aesthetics of household paper products, deserves special attention for its development history and changes in market demand.

[0003] Four-sided embossing is a common technique in tissue paper embossing. Its characteristic is that the embossed pattern is typically distributed around the four edges of the paper, forming a unique border effect that enhances the overall aesthetics of the paper, making it look more refined and high-end, and also increasing its three-dimensionality. However, four-sided embossing also has some limitations: 1) Fixed specifications: Traditional four-sided embossing devices often use a fixed embossing roller assembly design, resulting in the inability to flexibly adjust the specifications of the embossed pattern (such as size, shape, spacing, etc.). This limits the flexibility of producers in responding to different market demands. 2) High cost: Because traditional four-sided embossing devices require dedicated embossing roller assemblies for each specification of embossed pattern, producers incur high costs when changing or upgrading embossed patterns. 3) Limited production efficiency: When producing embossed paper products of different specifications, traditional four-sided embossing devices may require replacing the entire embossing roller assembly or performing tedious adjustments, which affects production efficiency and increases production cycles.

[0004] Therefore, in order to overcome these limitations and meet market changes and consumer demands, producers need to continuously explore and innovate embossing technology. For example, they need to develop embossing devices with greater flexibility so that different types or specifications of paper can be produced efficiently according to the needs of different customers during the actual production process. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a four-sided embossing device suitable for household paper. Through the combination design of the main roller and at least two auxiliary rollers, and the fact that the auxiliary rollers and the main roller are equipped with a variety of specifications and styles on the printing structure, it is possible to quickly switch between different specifications and sizes.

[0006] To achieve the above objectives, this utility model provides a four-sided embossing device suitable for household paper, comprising a main roller and at least two auxiliary rollers. The main roller surface is uniformly covered with a plurality of patterned protrusions, and the auxiliary roller surface is provided with at least two transverse protrusions arranged circumferentially at a first rated interval and at least two vertical protrusions arranged axially at a second rated interval. Any one of the auxiliary rollers can be radially close to or away from the main roller. The main roller and one of the auxiliary rollers are in close contact for rotational pressing, such that at least one patterned protrusion in the overlapping area between the transverse and vertical protrusions of the main roller surface and the auxiliary roller surface periodically embosses with the transverse and vertical protrusions of the auxiliary roller surface.

[0007] Furthermore, the first rated spacing between any two auxiliary rollers is the same.

[0008] Furthermore, the second rated spacing between any two auxiliary rollers is different.

[0009] Furthermore, each transverse protrusion on the surface of the auxiliary roller is an axially extending linear protrusion structure.

[0010] Furthermore, each vertical protrusion on the surface of the auxiliary roller is a circumferentially extending annular protrusion structure.

[0011] Furthermore, the main roller is fixed to the frame, and any one of the auxiliary rollers can be radially close to or far from the main roller.

[0012] The present invention adopts the above-described solution, and its beneficial effects are as follows:

[0013] 1) Quick switching of specifications and sizes: Through the combination design of the main roller and at least two auxiliary rollers, and the auxiliary rollers and the main roller are equipped with a variety of specifications and styles on the printing structure, it is possible to quickly switch between different specifications and sizes, meet the diverse production needs of tissue paper, improve production efficiency, and reduce the time cost of changing equipment or adjusting parameters during the production process.

[0014] 2) Diverse embossing patterns: The main roller surface is evenly covered with several patterned raised dots, and the auxiliary roller surface has transverse raised dots arranged in a circumferential direction and vertical raised dots arranged in an axial direction. When the main roller and auxiliary roller are in close contact and rotate to press against each other, at least one patterned raised dot in the overlapping area between the transverse and vertical raised dots on the main roller surface and the auxiliary roller surface will periodically emboss with the transverse and vertical raised dots on the auxiliary roller surface, which can form a variety of embossing patterns, enhance the aesthetics of tissue paper and increase the added value of the product.

[0015] 3) Flexible adjustment of embossing specifications: The first rated distance between any two auxiliary rollers is the same, while the second rated distance is different. This design allows for flexible selection of different auxiliary rollers to cooperate with the main roller as needed during the production process, further realizing the adjustment of embossing of different specifications and sizes, and increasing the flexibility and adaptability of production.

[0016] 4) Reasonable protrusion structure design: The transverse protrusions on the auxiliary roller surface are axially extending linear protrusion structures, and the vertical protrusions are circumferentially extending annular protrusion structures. This structural design is conducive to better coordination with the pattern protrusions of the main roller during the embossing process, ensuring the uniformity and stability of the embossing effect.

[0017] 5) Easy to operate and maintain: The main roller is fixed on the frame, and any auxiliary roller can be close to or away from the main roller in the radial direction. This structural design makes the operation of the equipment more convenient, facilitates the replacement and adjustment of auxiliary rollers, and is also conducive to the daily maintenance and upkeep of the equipment. Attached Figure Description

[0018] Figure 1-2 This is a schematic diagram showing the combination of the main roller and different auxiliary rollers in a four-sided embossing device.

[0019] Figure 3 This is a schematic diagram of a four-sided embossing device.

[0020] Figure 4-5 A schematic diagram showing the unfolded surface of different auxiliary rollers.

[0021] Figure 6 This is a schematic diagram of the embossing process on the base paper.

[0022] Wherein, 1-main roller, 2-auxiliary roller, 21-transverse protrusion, 22-vertical protrusion, A-base paper, A1-transverse edge pattern, A2-vertical edge pattern, L-first rated spacing, S-1\S-2-second rated spacing. Detailed Implementation

[0023] To facilitate understanding of the present invention, a more complete description of the invention is provided below with reference to the accompanying drawings, which illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the disclosure of the invention will be more thorough and complete.

[0024] See appendix Figure 1-6 As shown in this embodiment, a four-sided embossing device suitable for tissue paper includes a main roller 1 and at least two auxiliary rollers 2. The main roller 1 is fixed on the frame, and those skilled in the art can set the positions of at least two auxiliary rollers 2 according to actual production needs. Each auxiliary roller 222 can be arranged in a circumferentially staggered manner, and each auxiliary roller 222 is arranged at equal intervals relative to the main roller 121 axially.

[0025] For ease of explanation, this embodiment, in conjunction with the accompanying drawings, uses the paper conveying direction as the reference direction, with the direction in the same direction as the reference direction being vertical and the direction perpendicular to the reference direction being horizontal.

[0026] In this embodiment, refer to the appendix Figure 3-5 As shown, the surface of the auxiliary roller 2 is provided with at least two transverse protrusions 21 arranged circumferentially at a first rated distance L. The first rated distance L between any two auxiliary rollers 2 is the same. When switching different auxiliary rollers 2, the spacing between adjacent transverse pattern A1 on the base paper A remains unchanged.

[0027] In this embodiment, refer to the appendix Figure 3-5 As shown, the surface of the auxiliary roller 2 is provided with at least two vertical protrusions 22 arranged axially at a second rated spacing S-1\S-2, and the second rated spacing S-1\S-2 between any two auxiliary rollers 2 is different. By switching different auxiliary rollers 2 and adjusting different second rated spacings S-1\S-2, the spacing of adjacent vertical edge patterns A2 on the base paper A can be adjusted accordingly.

[0028] In summary, the adjacent transverse protrusions 21 and vertical protrusions 22 on the same auxiliary roller 2 are arranged in a vertically staggered manner. The rotational pressing between the main roller 1 and the auxiliary roller 2 is used to emboss the base paper A to form a four-sided grid pattern. Specifically, the base paper A passes through the gap between the main roller 1 and one of the auxiliary rollers 2, and the rotational pressing between the main roller 1 and the auxiliary roller 2 causes at least one pattern protrusion in the overlapping area between the transverse protrusions 21 and the vertical protrusions 22 on the roller surface of the main roller 1 and the roller surface of the auxiliary roller 2 to periodically emboss with the transverse protrusions 21 and the vertical protrusions 22 on the roller surface of the auxiliary roller 2. Thus, at least two transverse pattern patterns A1 and at least two vertical pattern patterns A2 are formed on the base paper A in one embossing, and at least one four-sided grid pattern is formed. (In actual production, several four-sided grid patterns will be formed on the base paper A in a matrix arrangement. These four-sided grid patterns can be squares, rectangles or other polygons, depending on the arrangement and spacing of the horizontal and vertical pattern patterns A2.)

[0029] Further details can be found in the appendix. Figure 3-5 As shown, the implementation method of the transverse pattern protrusion is as follows: the roller surface of the auxiliary roller 2 is provided with at least two axially extending linear transverse protrusions 21 arranged in a circumferential manner. The actual number of sets can be determined according to the actual production needs. Here, three sets of transverse protrusions 2113 are preferred. The roller surface of the main roller 1 is evenly covered with a number of pattern protrusions. Thus, by periodically pressing one or more pattern protrusions in the overlapping area between the transverse protrusions 21 of the roller surface of the main roller 1 and the roller surface of the auxiliary roller 2 against the transverse protrusions 21 of the roller surface of the auxiliary roller 2, the embossing action is completed.

[0030] Further details can be found in the appendix. Figure 3-5As shown, the implementation method of vertical pattern protrusions is as follows: At least two circumferentially extending and axially arranged annular vertical protrusions 22 are provided on the surface of the auxiliary roller 2. The actual number of sets can be determined according to the actual production needs. Here, three or four sets of vertical protrusions 2223 are preferred. The surface of the main roller 1 is evenly covered with a number of pattern protrusions. Thus, by periodically pressing one or more pattern protrusions in the overlapping area between the vertical protrusions 22 on the surface of the main roller 1 and the surface of the auxiliary roller 2 against the vertical protrusions 22 on the surface of the auxiliary roller 2, the embossing action is completed.

[0031] See appendix Figure 6 As shown, in this embodiment, the base paper A undergoes embossing through the transverse protrusions 21 and vertical protrusions 22 of the auxiliary roller 2, forming a transverse pattern A1 and a vertical pattern A2 on the base paper A. By switching different auxiliary rollers 2, the axial spacing between the embossing auxiliary rollers 222 of each vertical protrusion 22 can be adjusted to correspondingly adjust the spacing of adjacent vertical pattern A2. This allows the spacing of adjacent vertical pattern A2 to be adjusted as needed, improving the flexibility and adaptability of the product. Furthermore, it enables flexible and rapid changes to the specifications of the four-sided grid pattern without the need for additional cumbersome operations such as changing rollers, greatly reducing production and maintenance costs.

[0032] Further details can be found in the appendix. Figure 1 and 2 As shown, by switching different auxiliary rollers 2, different second rated distances S-1 and S-2 can be adjusted, thereby adjusting the spacing of adjacent vertical pattern A2 on the base paper A to meet the size requirements of products of different specifications. For example, if the distance (second rated distance S-1 / S-2) between the vertical protrusions 22 on the roller surface of the auxiliary roller 2 that is close to the main roller 1 is 15cm, then the vertical width of the produced four-sided grid pattern will also be 15cm. When the auxiliary roller 2 that is close to the main roller 1 is switched to an auxiliary roller 2 with a distance (second rated distance S-1 / S-2) of 20cm between the vertical protrusions 22 on the roller surface, the vertical width of the produced four-sided grid pattern will correspondingly become 20cm. This adjustment method allows the produced products to flexibly adapt to different size requirements.

[0033] In this embodiment, the horizontal edge pattern A1 and the vertical edge pattern A2 can be simple lines, geometric shapes or more complex patterns, depending on the engraving design of the roller surface.

[0034] In this embodiment, the main roller 1 is fixed on the frame, and any one of the auxiliary rollers 2 can be close to or away from the main roller 1 in the radial direction. As shown in the figure, each auxiliary roller 2 is equipped with a drive unit that drives it to move radially. The drive unit is a telescopic cylinder that acts on the end of the auxiliary roller 2 and can perform directional telescopic movement. Specifically, the telescopic end of the telescopic cylinder is connected to the end of the auxiliary roller 2 through a preset bearing seat.

[0035] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any modifications or alterations made by those skilled in the art to the technical solution of this utility model without departing from its scope are equivalent embodiments of this utility model. Therefore, all equivalent changes made based on the concept of this utility model without departing from its scope should be covered within the protection scope of this utility model.

Claims

1. A four-sided embossing device suitable for household paper, characterized in that: The system includes a main roller (1) and at least two auxiliary rollers (2). The main roller (1) has a number of patterned protrusions evenly distributed on its surface. The auxiliary rollers (2) have at least two transverse protrusions (21) arranged circumferentially at a first rated spacing (L) and at least two vertical protrusions (22) arranged axially at a second rated spacing (S-1\S-2). Any one of the auxiliary rollers (2) can be close to or far away from the main roller (1) in the radial direction. The main roller (1) and one of the auxiliary rollers (2) are in close contact and rotate against each other, so that at least one patterned protrusion in the overlapping area between the transverse protrusions (21) and the vertical protrusions (22) of the main roller (1) and the auxiliary roller (2) is periodically embossed with the transverse protrusions (21) and the vertical protrusions (22) of the auxiliary roller (2).

2. The four-sided embossing device for household paper as described in claim 1, characterized in that: The first rated distance (L) between any two auxiliary rollers (2) is the same.

3. The four-sided embossing device for household paper as described in claim 1, characterized in that: The second rated spacing (S-1\S-2) between any two auxiliary rollers (2) is different.

4. The four-sided embossing device for household paper as described in claim 1, characterized in that: Each transverse protrusion (21) on the surface of the auxiliary roller (2) is an axially extending linear protrusion structure.

5. The four-sided embossing device for household paper according to claim 1, characterized in that: Each vertical protrusion (22) on the surface of the auxiliary roller (2) is a circumferentially extending annular protrusion structure.

6. The four-sided embossing device for household paper as described in claim 1, characterized in that: The main roller (1) is fixed on the frame, and any one of the auxiliary rollers (2) can be close to or far away from the main roller (1) in the radial direction.

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