CN219006335U

CN219006335U - Point breaking device

Info

Publication number: CN219006335U
Application number: CN202223338625.8U
Authority: CN
Inventors: 江吉庆; 朱鱼; 朱彦峰
Original assignee: Chongqing Baiya Sanitary Products Co ltd
Current assignee: Chongqing Baiya Sanitary Products Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-05-12
Anticipated expiration: 2032-12-09

Abstract

The utility model belongs to the technical field of paper diaper production equipment, and particularly relates to a point breaking device which comprises a frame, a conveying mechanism, a point breaking mechanism and a driving mechanism, wherein the conveying mechanism comprises a conveying roller rotatably arranged on the frame; the breaking mechanism comprises a special roller which is slidably arranged on the frame, and a plurality of bulges are arranged on the end face of the special roller; the driving mechanism comprises a first driving component and a second driving component, the first driving component is used for driving the conveying roller to rotate, and the second driving component is used for driving the special roller to do reciprocating linear motion in the direction of approaching to and separating from the conveying roller; the problem that the non-woven fabric layer is easy to damage when the elastic band at the overlapping part of the absorption core body and the elastic waistline is subjected to point breaking treatment in the production process of the paper diaper is solved.

Description

Point breaking device

Technical Field

The utility model belongs to the technical field of paper diaper production equipment, and particularly relates to a breaking device.

Background

The traditional paper diapers are numerous in varieties, but most paper diapers are poor in elasticity, and are not fit enough to wear and easy to leak. In order to solve the problem, a paper diaper with adjustable tightness appears on the market, comprising a paper diaper body and an elastic waistline arranged on the paper diaper body, wherein the paper diaper body comprises a non-woven fabric surface layer, a breathable bottom film and an absorption core body arranged between the non-woven fabric surface layer and the breathable bottom film, in order to avoid the problem of excrement leakage, the absorption core body extends to the buttocks and the abdomen of a user, the absorption core body layer is overlapped with the elastic waistline part, and in order to avoid the problem that the overlapped part is wrinkled due to the shrinkage characteristic of the elastic waistline, the wearing is uncomfortable, and in the production process, the rubber band of the overlapped part of the absorption core body and the waistline is normally cut off.

The patent No. CN104323885A discloses a forming process of elastic waistline of a waist-surrounding paper diaper, and particularly discloses an elastic string cutting tool rest, which comprises a rotatable upper conveying roller and a fixed lower conveying roller, wherein a cloth passing interval matched with the thickness of a composite body is arranged between the upper conveying roller and the lower conveying roller, a plurality of tooth knife surfaces are arranged on the roller surface of the upper conveying roller, each tooth knife surface consists of a plurality of pointed teeth in a two-phase staggered arrangement mode, the size of each tooth knife surface is the same as the size of the overlapping part of the elastic waistline on the paper diaper and an absorption core body, and when the composite body passes through the cloth passing interval, the rotation of the upper conveying roller rolls and cuts the composite body, so that the elastic string at the matching part of the composite body and the tooth knife surfaces is cut by the teeth; the processing method can lead the rubber band at the overlapping part of the absorption core body and the elastic waistline to be in a breakpoint structure, so that the elastic waistline has no elastic effect at the position corresponding to the absorption core body, but the knife face on the upper conveying roller consists of pointed teeth, so that the pointed teeth easily cause the damage of the non-woven fabric layer of the composite body and other structures in the cutting process, thereby influencing the leak resistance of the paper diaper.

Disclosure of Invention

The utility model aims to provide a point breaking device which is used for solving the problem that a non-woven fabric layer is easy to damage when point breaking treatment is carried out on an elastic band at the overlapping part of an absorption core body and an elastic waistline in the production process of paper diapers.

In order to solve the technical problems, the utility model provides the following technical scheme:

a point breaking device comprises a frame, a conveying mechanism, a point breaking mechanism and a driving mechanism;

the conveying mechanism comprises a conveying roller rotatably arranged on the frame;

the breaking mechanism comprises a special roller which is slidably arranged on the frame, and a plurality of bulges are arranged on the end face of the special roller;

the driving mechanism comprises a first driving assembly and a second driving assembly, the first driving assembly is used for driving the conveying roller to rotate, and the second driving assembly is used for driving the special roller to do reciprocating linear motion in the direction close to and far away from the conveying roller.

The technical principle of the utility model is as follows:

the first driving component drives the conveying roller to rotate, the conveying roller conveys the non-woven fabric layer adhered with the rubber band between the conveying roller and the special roller, the second driving component drives the special roller to do reciprocating linear motion in the direction close to and far away from the conveying roller, a plurality of protrusions on the special roller are close to the conveying roller and squeeze the non-woven fabric layer adhered with the rubber band, the rubber band in a local area on the non-woven fabric layer is broken, the rubber band in the elastic waistline local area is in a breakpoint structure, and the elastic waistline in the breakpoint structure has no elastic effect on the non-woven fabric layer.

The beneficial technical effects of the utility model are as follows:

the elastic band in the local area of the non-woven fabric layer is pressed and broken through the bulges on the special roller, compared with the mode that the elastic band is cut off by adopting sharp teeth or other sharp cutting edges in the prior art, the non-woven fabric layer can be prevented from being cut off when the elastic band is cut off, and leakage of the paper diaper during use is avoided.

Further, the second driving component is an ultrasonic motor.

Further, the conveying mechanism further comprises a guide roller rotatably mounted on the frame, the guide roller is located above the conveying roller, and the first driving assembly is further used for driving the guide roller to rotate.

Further, the protrusions are obliquely and uniformly distributed on the end face of the special roller.

Further, the first driving assembly comprises a first rotating motor and a second rotating motor, the first rotating motor is used for driving the guide roller to rotate, and the second rotating motor is used for driving the conveying roller to rotate

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a side view of a special roller of the present utility model;

FIG. 3 is a schematic view of a part of the structure of the present application;

FIG. 4 is a cross-sectional view in the s-s direction;

fig. 5 is a cutter pattern of the front waist and the rear waist.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: the device comprises a frame 1, a guide roller 2, a conveying roller 3, a special roller 4, an oblique bulge 41, an ultrasonic motor 5 and a tool rest 6.

As shown in fig. 1, 2, 3 and 4,

the device comprises a frame 1, a conveying mechanism, a breaking mechanism and a driving mechanism, wherein the conveying mechanism comprises a guide roller 2 and a conveying roller 3 which are rotatably arranged on the frame 1, and the guide roller 2 is positioned above the conveying roller 3; the point breaking mechanism comprises a special roller 4 and a cutter rest 6, the cutter rest 6 is positioned on the right side of the frame 1, the special roller 4 is slidably arranged on the cutter rest 6, and a cloth passing interval matched with the thickness of the non-woven fabric layer bonded with the rubber band is arranged between the special roller 4 and the conveying roller 3; the driving mechanism comprises a first driving assembly, the first assembly comprises a first rotating motor and a second rotating motor, and output ends of the first rotating motor and the second rotating motor are fixedly connected with the guide roller 2 and the conveying roller 3 through bolts respectively.

The first rotating motor drives the guide roller 2 to rotate, the second rotating motor drives the conveying roller 3 to rotate, the guide roller 2 guides and conveys the non-woven fabric layer bonded with the rubber band to the conveying roller 3, and the conveying roller 3 drives the non-woven fabric layer bonded with the rubber band to rotate, so that the non-woven fabric layer bonded with the rubber band passes through the cloth passing interval between the special roller 4 and the conveying roller 3.

The end surface of the special roller 4 facing the conveying roller 3 is integrally formed with a plurality of inclined bulges 41, and the length of the end surface of the special roller 4 facing the conveying roller 3 is smaller than the width of the non-woven fabric layer bonded with the rubber band; the oblique bulges 41 are mutually parallel, the distance between two adjacent oblique bulges 41 is 2.5mm, the width of the end face of each oblique bulge 41 is 0.325mm, and the height of each oblique bulge 41 is 1mm; the driving mechanism further comprises a second driving component, the second driving component is an ultrasonic motor 5, the ultrasonic motor 5 is fixedly arranged on the tool rest 6, and the output end of the ultrasonic motor 5 is fixedly connected with the special roller 4 through a bolt.

The ultrasonic motor 5 drives the special roller 4 to vibrate at a high frequency, so that the special roller 4 performs reciprocating circular motion in the horizontal direction, the plurality of inclined protrusions 41 on the special roller 4 press the rubber band which is positioned between the cloth passing intervals and is adhered with the local area of the non-woven fabric layer, the rubber band of the local area of the elastic waistline of the paper diaper is in a breakpoint structure, the elastic waistline of the breakpoint structure has no elastic effect on the non-woven fabric layer, and the problem that the overlapping part of the absorbent core layer and the elastic waistline is wrinkled due to the shrinkage characteristic of the elastic waistline, so that wearing is uncomfortable is avoided.

In the actual production and processing process, after the elastic on the non-woven fabric is subjected to point breaking treatment, oblique upward tension is usually applied to two ends of the non-woven fabric, and the non-woven fabric is subjected to stretching treatment so as to facilitate subsequent production. Because the non-woven fabrics after point breaking treatment can generate the indentation, in order to avoid the indentation damage during stretching treatment, two point breaking devices are generally adopted to conduct point breaking treatment on the rubber strings of the same roll of non-woven fabrics side by side, the patterns of the cutting edges on the special rollers of the two point breaking devices are shown in fig. 5, after the point breaking treatment is finished, the indentation directions of the two sides of the non-woven fabrics are opposite, the indentation directions of the two sides of the non-woven fabrics are consistent with the pulling force directions acting on the two sides, the pulling force acting on the indentation is reduced, and the indentation damage during stretching is avoided. Moreover, compared with the indentation generated by the special roller point breaking shown in fig. 2, 3 and 4, the indentation generated by the cutting edge pattern point breaking shown in fig. 5 is shorter, and the gaps among the indentations are more, so that the tensile force acting on the indentation during stretching can be further dispersed, and the breakage of the indentation is avoided.

The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. The utility model provides a point device that breaks, includes frame, conveying mechanism, point disconnected mechanism and actuating mechanism, characterized by:

2. A clicking device as claimed in claim 1, characterized in that: the second driving component is an ultrasonic motor.

3. A clicking device as claimed in claim 2, characterized in that: the conveying mechanism further comprises a guide roller rotatably mounted on the frame, the guide roller is located above the conveying roller, and the first driving assembly is further used for driving the guide roller to rotate.

4. A clicking device as claimed in claim 3, characterized in that: the bulges are obliquely and uniformly distributed on the end face of the special roller.

5. A point off device according to claim 4, characterized in that: the first driving assembly comprises a first rotating motor and a second rotating motor, the first rotating motor is used for driving the guide roller to rotate, and the second rotating motor is used for driving the conveying roller to rotate.