Sanitary napkin non-woven fabric punching and embossing roller die
By designing a perforated and embossed roller mold for sanitary napkin nonwoven fabric, and adopting a flow guiding mechanism and a heat-conducting oil heater, the problems of uneven temperature and poor air permeability in the preparation of nonwoven fabric were solved. This improved heating uniformity and air permeability, prevented material layer misalignment, simplified the process, and reduced costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-10
AI Technical Summary
In the current nonwoven fabric preparation process, the use of heat-conducting oil for heating leads to uneven temperature, poor air permeability, and the composite nonwoven fabric is prone to shifting, resulting in skin irritation and insufficient breathability.
Design a non-woven fabric perforation and embossing roller mold for sanitary napkins, comprising a perforation roller group, a pre-pressing roller group, and an embossing roller group. Employ a flow guiding mechanism and a heat-conducting oil heater to ensure uniform heating, and improve air permeability and shaping accuracy through perforation needles and protrusion structures.
It achieves uniform heating of nonwoven fabrics, improves air permeability and shaping accuracy, prevents material layer misalignment, simplifies the process, and reduces manufacturing costs.
Smart Images
Figure CN224106115U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sanitary article equipment technical field, specifically relate to a sanitary towel non -woven fabric punching embossing roll mould. BACKGROUND
[0002] Non -woven fabric is widely used in various industries, wherein in the non -woven fabric manufacturing process of sanitary article, most adopt the way of hot adhesion or glue spraying adhesion to make. Therefore can cause surface hand feeling is poor, not enough soft, make sanitary article is easy to cause skin irritation or allergy after use. Therefore, through the surface design of non -woven fabric to have three -dimensional pattern or puncture, that is, embossing and punching, increase the liquid absorption area, be favorable to the penetration of liquid, and the three -dimensional texture design can reduce the contact between non -woven fabric and skin, increase the air permeability and make the hand feeling is full.
[0003] Punching and embossing process generally adopts roll pressing form to process, and the conventional processing mould is composed of two or more than two rollers, the roller surface is provided with concave teeth and convex teeth, the concave teeth and the convex teeth are staggered with each other, and under the drive of the transmission mechanism, the non -woven fabric is embossed and punched to form. In order to better process and shape, generally the roller is heated to a certain temperature to soften the fiber of the passing non -woven fabric, and then cooled and shaped, so that the hole type is better kept. Therefore, if the embossing and punching are carried out by roll pressing process, the temperature control of the roller surface is very important. The conventional heating mode of the roller includes heating by heat conduction oil, electromagnetic heating and radiation heating.
[0004] The existing common form is heat conduction oil heating for heating the pressing roller, which has the characteristics of convenient and easy operation, but it also has some shortcomings such as uneven temperature distribution of the roller surface. At the same time, the existing composite non -woven fabric needs to meet the requirement of a certain large grammage, which leads to poor air permeability and direct mechanical pressing, which is prone to position deviation. UTILITY MODEL CONTENTS
[0005] The utility model is directed at least to one of the technical problems existing in the prior art, and provides a sanitary towel non -woven fabric punching embossing roll mould.
[0006] In order to achieve the above object, the utility model discloses the technical scheme as follows: A sanitary towel non - woven fabric punch embossing roller mould, including punch roller group, pre - pressing roller group, embossing roller group, the embossing roller group includes first pressure roller, with the second pressure roller of first pressure roller matching, first pressure roller, second pressure roller inside be equipped with heating cavity, install the flow guide mechanism in the heating cavity, the import and export end of flow guide mechanism is connected with heat -conducting oil heater, heat -conducting oil collecting groove respectively, punch roller group includes with first pressure roller, second pressure roller matching first punch roller, second punch roller, first punch roller, second punch roller upper surface all are equipped with punch needle, pre - pressing roller group includes first pre - pressing roller spare, second pre - pressing roller spare, first pre - pressing roller spare, second pre - pressing roller spare are pressed and are located first pressure roller, second pressure roller top.
[0007] Further, the flow guide mechanism includes a plurality of flow guide plates connected to the inner wall of the heating cavity, and the plurality of flow guide plates are combined to form a tortuous heat oil channel.
[0008] Further, the plurality of flow guide plates are vertically arranged in the heating cavity.
[0009] Further, the first pressure roller and the second pressure roller are provided with punch grooves matched with the punch needles.
[0010] Further, the first pressure roller and the second pressure roller are provided with protrusions pressed against each other.
[0011] Further, two protrusions are arranged between every two adjacent punch grooves.
[0012] Further, the first pre-pressing roller and the second pre-pressing roller each include a rotating shaft, the rotating shaft is provided with a support arm, and the end of the support arm is provided with a pre-pressing roller.
[0013] Further, the pre-pressing roller includes three, and the three pre-pressing rollers are uniformly arranged along the feeding direction and abut against the non-woven fabric.
[0014] Further, a gap is arranged between the pre-pressing rollers of the first pre-pressing roller and the second pre-pressing roller pressed against each other, for the non-woven fabric to pass through.
[0015] Compared with the prior art, the technical scheme of the present application has the following advantages:
[0016] 1、The application realizes embossing, punching and compounding simultaneously by setting the punching roller group, the pre-pressing roller group and the embossing roller group, simplifies the process and saves the manufacturing cost; the embossing roller group comprises a first pressing roller and a second pressing roller matched with the first pressing roller, a heating cavity is arranged in the first pressing roller and the second pressing roller, a flow guide mechanism is arranged in the heating cavity, a heat conduction oil heater and a heat conduction oil collecting groove are connected to the inlet and outlet of the flow guide mechanism respectively, the heat pressing of different areas of the non-woven fabric is realized, the uniformity of the overall heat of the embossing roller body is maintained, and the bending and deformation of the non-woven fabric caused by the failure to reach the process temperature of the non-woven fabric pressing due to heat loss when the heat conduction oil flows in the embossing roller body is prevented.
[0017] 2、The punching roller group of the application comprises a first punching roller and a second punching roller matched with the first pressing roller and the second pressing roller respectively, punching needles are arranged on the upper surfaces of the first punching roller and the second punching roller, so that the obtained composite non-woven fabric has good air permeability; the pre-pressing roller group comprises a first pre-pressing roller and a second pre-pressing roller, the first pre-pressing roller and the second pre-pressing roller are in a press fit and located above the first pressing roller and the second pressing roller, so that the dislocation of the first material layer and the second material layer during the compounding process can be effectively prevented, and the material deviation caused by excessive air due to the failure to pre-press the two material layers. BRIEF DESCRIPTION OF DRAWINGS
[0018] Fig. 1 It is a structure schematic view of the sanitary napkin non-woven fabric punching and embossing roller mold in the preferred embodiment of the application.
[0019] Fig. 2 It is an internal structure schematic view of the first pressing roller in the preferred embodiment of the application.
[0020] The drawings show that: 1, the first pressing roller; 2, the second pressing roller; 3, the first punching roller; 4, the second punching roller; 5, the first pre-pressing roller; 6, the second pre-pressing roller; 7, the punching needle; 8, the heating cavity; 9, the flow guide mechanism; 10, the heat conduction oil heater; 11, the heat conduction oil collecting groove; 12, the heat conduction oil channel; 13, the rotating shaft; 14, the supporting arm; 15, the pre-pressing roller. DETAILED DESCRIPTION
[0021] The technical solutions in the application will be described clearly and completely in combination with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, not all the embodiments.
[0022] REFERENCE Figs. 1-2As shown in the preferred embodiment of the utility model, a sanitary napkin non-woven fabric punching and embossing roller mold, including punch roller group, pre-press roller group, embossing roller group, realized embossing, punching and compound synchronization, simplified process, saved manufacturing cost, the embossing roller group includes first pressure roller 1, second pressure roller 2 matched with first pressure roller 1, first pressure roller 1, second pressure roller 2 inside is equipped with heating cavity 8, heating cavity 8 is equipped with flow guide mechanism 9, the import and export end of flow guide mechanism 9 is connected with heat conduction oil heater 10, heat conduction oil collecting groove 11 respectively, realizes the hot pressing of different areas of non-woven fabric, keeps the uniformity of the overall heat of embossing roller body, prevents the process temperature of non-woven fabric pressing due to heat loss when heat conduction oil flows in embossing roller body from being unable to be reached, and further causes the bending, deformation condition of non-woven fabric, the punch roller group includes first punch roller 3, second punch roller 4 matched with first pressure roller 1, second pressure roller 2 respectively, the upper surface of first punch roller 3, second punch roller 4 is equipped with punch needle 7, so that the composite non-woven fabric obtained has good air permeability, the pre-press roller group includes first pre-press roller 5, second pre-press roller 6, first pre-press roller 5, second pre-press roller 6 are matched and located above first pressure roller 1, second pressure roller 2, so that the first material layer and the second material layer can be effectively prevented from being misaligned during the composite processing, and the two material layers are offset due to excessive air because pre-pressing is not performed.
[0023] As the preferred embodiment of the utility model, it can also have the following additional technical features: the flow guide mechanism 9 includes a plurality of flow guide plates connected to the inner wall of the heating cavity 8, a plurality of the flow guide plates are combined to form a circuitous heat conduction oil channel 12, and the heat conduction oil channel is connected with a heat conduction oil heater and a heat conduction oil collecting groove. The plurality of flow guide plates are vertically arranged in the heating cavity 8 to uniformly heat the non-woven fabric. The connection relationship between the heat conduction oil heater and the heat conduction oil collecting groove can be achieved by existing technology. The heat conduction oil heater is a device for heating heat conduction oil, which can be purchased directly on the market. The mold realizes the circulation of heat conduction by the circulation process of "heating heat conduction oil-flowing heat conduction oil in the flow guide plate-collecting heat conduction oil", maintains the long-term heat pressing of the embossing roller, and recycles the heat conduction oil.
[0024] In this embodiment, the first pressure roller 1 and the second pressure roller 2 are provided with punch grooves matched with the punch needles 7, so that the punching operation of the non-woven fabric can be realized, and the air permeability of the non-woven fabric is ensured.
[0025] In this embodiment, the first pressure roller 1 and the second pressure roller 2 are provided with protrusions that press against each other, and two protrusions are arranged between every two adjacent punch grooves. In this way, the surface of the non-woven fabric can be embossed, and the finished sanitary napkin has good flow guiding effect.
[0026] In the embodiment, the first pre-press roller 5 and the second pre-press roller 6 each include a rotating shaft 13, the rotating shaft 13 is provided with a supporting arm 14, the end of the supporting arm 14 is provided with a pre-press roller 15, the pre-press roller 15 includes three, the three pre-press rollers 15 are uniformly arranged along the feeding direction and abut against the non-woven fabric; meanwhile, gaps for the non-woven fabric to pass through are arranged between the pre-press rollers in the first pre-press roller 5 and the second pre-press roller 6 which press against each other, so that the dislocation of the first material layer and the second material layer in the composite processing process can be effectively prevented, and the accuracy of the pressing is ensured.
[0027] The working principle of the utility model is: when in use, two non-woven material layers pass through the gap between the first pressing roller 1 and the first punching roller 3 and the gap between the second pressing roller 2 and the second punching roller 4, and the first punching roller 3 and the second punching roller 4 are used to punch the non-woven fabric, the punched non-woven fabric passes through the pre-press roller 15 of the first pre-press roller 5 and the second pre-press roller 6, the pre-press rollers in the first pre-press roller 5 and the second pre-press roller 6 which press against each other pre-press the two non-woven material layers, the non-woven material layers enter the gap between the first pressing roller 1 and the second pressing roller 2 after pre-pressing, and the non-woven material layers are pressed, the embossing, punching and compounding of the non-woven fabric are realized at the same time, the process is simplified, and the manufacturing cost is saved.
[0028] Under the premise of no conflict, the person skilled in the art can freely combine and superimpose the above-mentioned additional technical features.
[0029] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of the application belong to the scope protected by the utility model.
Claims
1. A sanitary napkin nonwoven punch embossing roll die characterized by: The embossing roller set comprises a first compression roller and a second compression roller matched with the first compression roller, and the first compression roller and the second compression roller are internally provided with heating cavities, and the heating cavities are internally provided with flow guide mechanisms, and the inlet and outlet ends of the flow guide mechanisms are respectively connected with heat conduction oil heaters and heat conduction oil collecting grooves; the punching roller set comprises a first punching roller and a second punching roller matched with the first compression roller and the second compression roller respectively, and the upper surfaces of the first punching roller and the second punching roller are respectively provided with punching needles; the pre-pressing roller set comprises a first pre-pressing roller and a second pre-pressing roller, and the first pre-pressing roller and the second pre-pressing roller are in pressure fit and are located above the first compression roller and the second compression roller.
2. The sanitary napkin nonwoven punch embossing roll die of claim 1 wherein: The flow guide mechanism comprises a plurality of flow guide plates connected with the inner wall of the heating cavity, and the plurality of flow guide plates are combined to form a circuitous heat conduction oil channel, and the heat conduction oil channel is respectively connected with the heat conduction oil heater and the heat conduction oil collecting groove.
3. The sanitary napkin nonwoven punch embossing roll die of claim 2, wherein: The plurality of flow guide plates are vertically arranged in the heating cavity.
4. The sanitary napkin nonwoven punch embossing roll die of claim 1 wherein: The surfaces of the first compression roller and the second compression roller are provided with punching grooves matched with the punching needles.
5. The sanitary napkin nonwoven punch embossing roll die of claim 4, wherein: The surfaces of the first compression roller and the second compression roller are provided with protrusions in pressure fit.
6. The sanitary napkin nonwoven punch embossing roll die of claim 5 wherein: Two protrusions are arranged between every two adjacent punching grooves.
7. The sanitary napkin nonwoven punch embossing roll die of claim 1 wherein: The first pre-pressing roller and the second pre-pressing roller each comprise a rotating shaft, and the surface of the rotating shaft is provided with a support arm, and the end of the support arm is provided with a pre-pressing roller.
8. The sanitary napkin nonwoven punch embossing roll die of claim 7, wherein: The pre-pressing roller comprises three, and the three pre-pressing rollers are uniformly arranged along the feeding direction and abut against the non-woven fabric.
9. The sanitary napkin nonwoven punch embossing roll die of claim 8, wherein: The pre-pressing rollers in the first pre-pressing roller and the second pre-pressing roller in pressure fit are provided with gaps for the non-woven fabric to pass through.