Printing roller for sanitary napkins

By designing a detachable end roller and inner printing roller structure, the problem of high replacement cost of existing printing rollers is solved, enabling quick replacement of printing patterns and replacement of locally worn parts, thus reducing production costs.

CN224588772UActive Publication Date: 2026-08-04SHANDONG JIESHUBAO SANITARY PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG JIESHUBAO SANITARY PRODUCTS CO LTD
Filing Date
2025-09-28
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The existing sanitary napkin printing rollers are integrally molded, which makes it time-consuming, labor-intensive, and costly to change different printing patterns. When there is local wear, the entire roller needs to be replaced, which increases costs.

Method used

The design incorporates detachable end rollers and inner printing rollers, which are connected via fittings to form a modular printing roller, allowing for individual replacement of parts in the printing section.

Benefits of technology

It enables quick replacement of printed patterns, reduces processing costs, and reduces waste by replacing only partial parts when worn.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a printing roller for sanitary towel relates to sanitary towel printing equipment technical field, include: two end roller cylinders, and detachable installation between two the inner printing roller body of end roller cylinder, still include the assembly spare, the assembly spare is used for connecting two end roller cylinders in the inner printing roller body both sides and forms the combined printing roller cylinder, two the opposite end of end roller cylinder still all is provided with the edge portion batten, when two end roller cylinders assemble, two the edge portion batten can form the outer embossed surface. The utility model discloses through the design of assembly spare, can realize the detachable assembly of end roller cylinder, inner printing roller body, and when the printing roller appears the wearing condition, and the part of printing position can be replaced alone, to reduce the processing cost.
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Description

Technical Field

[0001] This utility model relates to the technical field of sanitary napkin printing equipment, specifically a printing roller for sanitary napkins. Background Technology

[0002] The sanitary napkin market is diversified, and different series may require different printed patterns. However, the existing printing rollers have two problems: first, most of them are molded in one piece, and different printing processes require the manufacture of roller structures with different printed patterns, which is time-consuming, labor-intensive, and costly; second, when the printing roller shows local wear, the entire printing roller must be replaced, which further increases the cost. Therefore, a printing roller for sanitary napkins is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a printing roller for sanitary napkins. Through the design of the assembly, the end roller and the inner printing roller body can be detached and assembled to replace different printing patterns. When the printing roller is worn, only the printing part needs to be replaced, thereby reducing the processing cost.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a printing roller for sanitary napkins, comprising: two end rollers; and an inner printing roller body detachably installed between the two end rollers; further comprising an assembly for connecting the two end rollers to both sides of the inner printing roller body to form a combined printing roller; each of the two end rollers is provided with an edge pressure strip at its opposite ends, and when the two end rollers are assembled, the two edge pressure strips can form an outer embossed surface.

[0005] Preferably, the inner printing roller body includes a central roller, a printing body disposed on the outer surface of the central roller, and arc surfaces disposed at both ends of the central roller for fitting and engaging with the two end rollers.

[0006] Preferably, the printed body has a continuous embossed texture.

[0007] Preferably, the two end rollers are symmetrically distributed, each end roller includes a cylinder body, the inner side of which is assembled with an edge pressure strip; and a butt joint disposed on the outer side of the cylinder body.

[0008] Preferably, the two edge pressure strips are bent towards each other and can wrap around the inner printing roller.

[0009] Preferably, each of the edge pressing strips includes a first roller pressing part fixed to the cylinder body, the first roller pressing part extending to both ends of the central roller and respectively fixed with a second roller pressing part.

[0010] Preferably, the assembly includes annularly distributed assembly strips, wherein each assembly strip is embedded in a first groove formed in the inner wall of the center roller at its middle part, and its two ends extend toward the two cylinder bodies and are embedded in second grooves formed on the two cylinder bodies respectively; and a first bolt structure and a second bolt structure respectively provided in the middle and on both sides of the assembly strip, for detachable connection between the assembly strip and the center roller and the cylinder body respectively.

[0011] Preferably, each of the first bolt structures includes a plurality of first screw holes formed in the middle of the assembly strip, each of the first screw holes having a first bolt body; and a plurality of first through holes formed on the center roller corresponding to the first screw holes, and when the first bolt body passes through the corresponding first through hole and is threadedly connected to the first screw hole, it is used to fix the assembly strip to the center roller.

[0012] Preferably, the second bolt structure includes second through holes formed at both ends of the assembly strip, each second through hole containing a second bolt body; and second threaded holes formed at corresponding second groove positions of the two cylindrical bodies.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention features a printing roller whose main structure consists of end rollers on both sides and an inner printing roller body detachably installed between the two end rollers. With the help of the fittings, the two end rollers and the two sides of the inner printing roller body can jointly form a combined printing roller. Combined with the edge pressure strip, the printing process on the inside and outside of the sanitary napkin is achieved under the rapid rolling action of the combined printing roller. Through the design of the fittings, the end rollers and the inner printing roller body can be detached and assembled. When the printing roller is worn, only the parts of the printing area need to be replaced, thereby reducing processing costs. Attached Figure Description

[0014] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention; Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention; Figure 3 This is a front view structural diagram of the present utility model; Figure 4 This is a first-view perspective three-dimensional structural diagram of the present invention after disassembly; Figure 5 for Figure 4 A front view structural diagram; Figure 6 This is a second-view three-dimensional structural diagram of the disassembled present invention.

[0015] In the diagram: 111, center roller; 112, cylinder body; 113, edge pressure strip; 114, joint; 115, printing body; 116, assembly strip; 117, second through hole; 118, second bolt body; 119, first bolt body; 120, first through hole; 121, first screw hole; 122, second groove; 123, first groove. Detailed Implementation

[0016] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. The various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0017] Please see Figures 1 to 6 The present invention preferably provides the following technical solution: a printing roller for sanitary napkins, comprising: two end rollers; and an inner printing roller body detachably installed between the two end rollers; and further comprising an assembly for connecting the two end rollers to both sides of the inner printing roller body to form a combined printing roller; and each of the two end rollers is provided with an edge pressure strip 113 at its opposite ends, and when the two end rollers are assembled, the two edge pressure strips 113 can form an outer embossed surface.

[0018] It is known that the sanitary napkin market is diversified, and different series may require different printed patterns. However, existing printing rollers are mostly integrally molded, and different printing rollers need to be replaced for different printing patterns. This method is firstly costly and requires a large number of parts assemblies to be stocked. Secondly, a single defect in the printing area requires the replacement of the entire printing roller. Therefore, a printing roller that allows for independent replacement of printing parts is proposed. Specific examples Figure 1 , 2 As shown in Figure 3, the printing roller provided in this application mainly consists of end rollers on both sides and an inner printing roller body that can be detachably installed between the two end rollers. With the help of the accessories, the two end rollers and the two sides of the inner printing roller body can jointly form a combined printing roller. Combined with the edge pressure strip 113, the printing process of the inside and outside of the sanitary napkin is realized under the action of rapid rolling of the combined printing roller.

[0019] Furthermore, the inner printing roller body includes a central roller 111, a printing body 115 disposed on the outer surface of the central roller 111, and arc surfaces disposed at both ends of the central roller 111 for fitting and engaging with the two end rollers.

[0020] like Figure 1 , 2 As shown in Figures 3 and 4, the center roller 111 is placed between the two end rollers and assembled with the assembly. When the center roller 111 rotates, the printing body 115 mounted on it can perform printing operations on the inside of the sanitary napkin.

[0021] Furthermore, the printed body 115 has a continuous raised and recessed texture, such as... Figure 1-6 As shown, when the printing body 115 performs printing operations on the inside of the sanitary napkin, the printing body 115 with its raised and recessed texture creates tiny protrusions on the surface of the sanitary napkin, forming channels for air circulation. This helps to dissipate moisture and heat, reduce stuffiness during use, and further enhance comfort.

[0022] Furthermore, the two end rollers are symmetrically distributed, each end roller including a cylinder body 112, the inner side of which is assembled with an edge pressure strip 113; and a butt joint 114 disposed on the outer side of the cylinder body 112, such as Figure 4 , 5 As shown in Figure 6, the connector 114 here is an existing mature structure that can be assembled with the drive equipment. The specific structure will not be described in detail.

[0023] Furthermore, the two edge pressure strips 113 bend towards each other at both ends and can wrap around the inner printing roller, such as... Figure 1 , 2 As shown in Figure 3, the structural design of the two edge pressure strips 113 and the inner printing roller can be adapted to the shape of sanitary napkins.

[0024] Furthermore, each edge pressing strip 113 includes a first roller pressing portion fixed to the cylinder body 112, the first roller pressing portion extending towards both ends of the center roller 111 and respectively fixed with a second roller pressing portion, such as... Figure 1 As shown, the design of the first roller pressing section being wider than the second roller pressing section can be adapted to the shape of sanitary napkins.

[0025] Furthermore, the assembly includes annularly distributed assembly strips 116, wherein the middle portion of each assembly strip 116 is embedded in a first groove 123 formed on the inner wall of the center roller 111, and its two ends extend toward the two cylinder bodies 112 and are respectively embedded in second grooves 122 formed on the two cylinder bodies 112; and first bolt structures and second bolt structures respectively provided in the middle and on both sides of the assembly strips 116, for detachable connection between the assembly strips 116 and the center roller 111 and the cylinder bodies 112; furthermore, each first bolt structure includes a plurality of first screw holes 12 formed in the middle portion of the assembly strip 116. 1. Each first screw hole 121 is provided with a first bolt body 119; and a plurality of first through holes 120 corresponding to the first screw holes 121 are opened on the center roller 111. When the first bolt body 119 passes through the corresponding first through hole 120 and is threadedly connected to the first screw hole 121, it is used to fix the assembly strip 116 to the center roller 111. Further, the second bolt structure includes second through holes 117 opened at both ends of the assembly strip 116, each second through hole 117 is provided with a second bolt body 118; and second screw holes are respectively opened at the positions of the two cylinder bodies 112 corresponding to the second grooves 122.

[0026] There are several assembly strips 116 here, such as Figure 4 , 5 As shown in Figures 6 and 7, the middle part of a single assembly strip 116 can be embedded in the first groove 123 opened in the inner wall of the center roller 111 and installed with the center roller 111 by a first bolt structure. Its two ends extend to the two cylinder bodies 112 and are installed with the cylinder bodies 112 by a second bolt structure. The first and second bolt structures are similar. By rotating the first bolt body 119 or the second bolt body 118, the assembly strip 116 can be fixed with the center roller 111 or the cylinder body 112.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "fixation" and other terms should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part. There are various ways to install detachably, such as by using a plug-in and snap-fit ​​method, or by using a bolt connection, etc.

[0028] The above description of the specific embodiments of this utility model is only used to further illustrate this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-essential improvements and adjustments made to this utility model by technical engineers based on the above description of the utility model shall fall within the scope of protection of this utility model.

Claims

1. A printing roll for sanitary napkins, characterized in that ,include: Two end rollers; And an inner printing roller that can be detachably installed between the two end rollers; It also includes an assembly for connecting two end rollers to both sides of the inner printing roller body to form a combined printing roller. Each of the two end rollers is provided with an edge strip (113) at its opposite end. When the two end rollers are assembled, the two edge strips (113) can form an outer embossed surface.

2. The printing roller for sanitary napkins according to claim 1, characterized in that: The inner printing roller body includes a central roller (111) and a printing body (115) disposed on the outer surface of the central roller (111). And the arc surfaces located at both ends of the central roller (111) are used to adapt and connect with the two end rollers.

3. The printing roller for sanitary napkins according to claim 2, characterized in that: The printed body (115) has a continuous embossed texture.

4. A printing roller for sanitary napkins according to claim 2, characterized in that: The two end rollers are symmetrically distributed, and each end roller includes a cylinder body (112), the inner side of which is assembled with a side pressure strip (113); And a connector (114) provided on the outside of the cylinder body (112).

5. A printing roller for sanitary napkins according to claim 1, characterized in that: The two edge strips (113) bend towards each other at both ends and can wrap around the inner printing roller.

6. A printing roller for sanitary napkins according to claim 4, characterized in that: Each of the edge pressing strips (113) includes a first roller pressing part fixed to the cylinder body (112), the first roller pressing part extending to both sides and respectively fixed with a second roller pressing part.

7. A printing roller for sanitary napkins according to claim 2, characterized in that: The assembly includes annularly distributed assembly strips (116), wherein the middle of each assembly strip (116) is embedded in a first groove (123) opened on the inner wall of the center roller (111), and its two ends extend toward the two cylinder bodies (112) and are respectively embedded in the second grooves (122) opened on the two cylinder bodies (112). The first bolt structure and the second bolt structure are respectively provided in the middle and on both sides of the assembly strip (116), which are used for detachable connection between the assembly strip (116) and the center roller (111) and the cylinder body (112).

8. A printing roller for sanitary napkins according to claim 7, characterized in that: Each of the first bolt structures includes a plurality of first screw holes (121) formed in the middle of the assembly strip (116), and each of the first screw holes (121) is provided with a first bolt body (119). And a plurality of first through holes (120) corresponding to the first screw hole (121) are opened on the center roller (111), and when the first bolt body (119) passes through the corresponding first through hole (120) and is threadedly connected to the first screw hole (121), it is used to fix the assembly strip (116) and the center roller (111).

9. A printing roller for sanitary napkins according to claim 7, characterized in that: The second bolt structure includes second through holes (117) opened at both ends of the assembly strip (116), and a second bolt body (118) is provided in each second through hole (117). And second screw holes respectively opened at the positions of the second grooves (122) on the two cylindrical bodies (112).