阅读说明：本技术 一种任意向拉伸无纺布生产装置及任意向拉伸无纺布 (Random-direction stretching non-woven fabric production device and random-direction stretching non-woven fabric ) 是由 赵冬娣 邱基甸 陈建人 于 2020-12-25 设计创作，主要内容包括：本发明公开了一种任意向拉伸无纺布生产装置,属于无纺布生产领域,解决了现有技术中伸缩性复合片不具备任意方向上具有优异弹性的问题,解决该问题的技术方案主要是第一压痕成型辊的外周侧面设有第一成型凸起,第一成型凸起呈圆台状,第一配合辊的外周侧面设有圆形的第一配合凹槽,第一配合凹槽与第一成型凸起相互挤压使基础无纺布张紧于上第一压痕成型辊的外周,基础无纺布上紧贴第一成型凸起顶端面的部分形成平整部、基础无纺布上位于相邻第一成型凸起之间的部分形成均匀分布的自然鼓包,挤压粘合间隙位于第一成型凸起的顶端面与压合辊之间并使平整部与弹性膜粘合。本发明主要用于生产任意向拉伸无纺布。本发明还提供一种任意向拉伸无纺布。(The invention discloses a device for producing non-woven fabrics stretched in any direction, which belongs to the field of non-woven fabric production and solves the problem that a stretchable composite sheet in the prior art does not have excellent elasticity in any direction, the technical scheme for solving the problem is mainly that a first forming bulge is arranged on the peripheral side surface of a first indentation forming roller, the first forming bulge is in a round table shape, a circular first matching groove is arranged on the peripheral side surface of the first matching roller, the first matching groove and the first forming bulge are mutually extruded to enable base non-woven fabrics to be tensioned on the periphery of the upper first indentation forming roller, and a part of the base non-woven fabrics tightly attached to the top end surface of the first forming bulge forms a flat part, the part of the base non-woven fabric between the adjacent first forming bulges forms uniformly distributed natural bulges, and the extrusion bonding gap is positioned between the top end surface of the first forming bulge and the pressing roller and bonds the flat part with the elastic membrane. The invention is mainly used for producing the random-direction stretching non-woven fabric. The invention also provides the non-woven fabric stretched in any direction.)

1. An arbitrary-direction stretching non-woven fabric production device comprises a rack, and a first matching roller, a first indentation forming roller and a pressing roller which are arranged on the rack, wherein the first matching roller and the first indentation forming roller are mutually extruded, and the pressing roller and the first indentation forming roller are mutually extruded to form an extrusion bonding gap for basic non-woven fabric and an elastic film to pass through, and the device is characterized in that the peripheral side surface of the first indentation forming roller is provided with first forming bulges which are in a circular truncated cone shape, the first forming bulges are distributed at equal intervals in the axial direction of the first indentation forming roller and are distributed at equal intervals in the circumferential direction of the first indentation forming roller, the interval of the first forming bulges in the axial direction of the first indentation forming roller is equal to the interval of the first forming bulges in the circumferential direction of the first indentation forming roller, the peripheral side surface of the first matching roller is provided with a first circular matching groove, and the first matching grooves are in one-to-one correspondence with the first forming bulges, the first matching groove and the first forming protrusion are mutually extruded to enable the base non-woven fabric to be tensioned on the periphery of the upper first indentation forming roller, a part, close to the top end face of the first forming protrusion, of the base non-woven fabric forms a flat part, a part, located between the adjacent first forming protrusions, of the base non-woven fabric forms uniformly distributed natural bulges, and the extrusion bonding gap is located between the top end face of the first forming protrusion and the pressing roller and enables the flat part to be bonded with the elastic membrane.

2. The random direction stretch nonwoven fabric production apparatus according to claim 1, wherein the apex end face of the first forming projection is a plane perpendicular to the axial direction thereof.

3. The random direction stretch nonwoven fabric production apparatus according to claim 1, wherein the apex surface of the first forming projection is an arc surface parallel to the outer peripheral side surface of the first indentation forming roll.

4. The apparatus according to claim 1, wherein the nip roller is a smooth roller.

5. The device for producing random-direction stretching non-woven fabric according to claim 1, wherein the press-fit roller is replaced by a second indentation forming roller, the peripheral side surface of the second indentation forming roller is provided with a second forming protrusion, the second forming protrusion is in a circular truncated cone shape, one side of the second indentation forming roller is provided with a second matching roller, the peripheral side surface of the second matching roller is provided with a second circular matching groove, the second matching grooves correspond to the second forming protrusions one to one, the second matching grooves and the second forming protrusions are mutually extruded to enable the base non-woven fabric to be tensioned on the periphery of the upper second indentation forming roller, a part of the base non-woven fabric, which is tightly attached to the top end surface of the second forming protrusion, forms even-distributed natural bulges, the top end surfaces of the second forming protrusions correspond to the top end surfaces of the first forming protrusions one to form extrusion bonding gaps, and the flat parts of the two layers of non-woven fabric are respectively connected with two sides of the elastic film And (6) bonding.

6. The random direction stretch nonwoven fabric production apparatus according to claim 5, wherein the tip end surface of the second forming projection is a plane perpendicular to the axial direction thereof.

7. The random direction stretching nonwoven fabric production apparatus according to claim 5, wherein the tip end surface of the second forming projection is an arc surface parallel to the outer peripheral side surface of the first indentation forming roll.

8. The apparatus according to claim 5, wherein the second forming projections have tip end surfaces of the same shape and size as those of the first forming projections.

9. An arbitrary tensile non-woven fabrics, includes basic non-woven fabrics and elastic membrane, its characterized in that, the basic non-woven fabrics passes through the arbitrary first cooperation roller and the first indentation forming roll extrusion of tensile non-woven fabrics apparatus for producing of claim 4 and forms the structure that has flattening portion and evenly distributed's natural bulge, flattening portion and elastic membrane pass through plain surface roller and first indentation forming roll extrusion bonding.

10. The utility model provides an arbitrary tensile non-woven fabrics, includes two-layer basis non-woven fabrics and elastic membrane, its characterized in that, wherein one deck basis non-woven fabrics passes through claim 5 arbitrary to tensile non-woven fabrics apparatus for producing's first cooperation roller and first indentation forming roll extrusion formation have the structure of flattening and natural swell, the other deck basis non-woven fabrics passes through claim 5 arbitrary to tensile non-woven fabrics apparatus for producing's second cooperation roller and the extrusion of second indentation forming roll form the structure of having flattening and evenly distributed's natural swell, the flattening of two-layer basis non-woven fabrics is respectively through first indentation forming roll and second indentation forming roll extrusion bonding with the both sides of elastic membrane.

Technical Field

The invention relates to the field of non-woven fabric production, in particular to a random-direction stretching non-woven fabric production device and a random-direction stretching non-woven fabric produced by the same.

Background

In the prior art, in order to obtain a nonwoven fabric composite sheet having elasticity in a plurality of directions, a nonwoven fabric having excellent elasticity in the width direction (the direction perpendicular to the flow direction and the thickness direction) and an elastic sheet are laminated and joined to each other, and then a stretchable composite sheet having excellent elasticity in both the width direction and the flow direction is produced, for example, in patent application 201980010818.2. However, such a composite sheet is required not only for the elastic direction of the nonwoven fabric used, but also for excellent elasticity in any direction.

Disclosure of Invention

The invention aims to provide a device for producing random-direction stretch non-woven fabric, which can produce random-direction stretch non-woven fabric.

In order to achieve the purpose, the invention adopts the following technical scheme: an arbitrary-direction stretching non-woven fabric production device comprises a rack, a first matching roller, a first indentation forming roller and a pressing roller, wherein the first matching roller, the first indentation forming roller and the pressing roller are arranged on the rack and mutually extrude each other, the pressing roller and the first indentation forming roller mutually extrude each other to form an extrusion bonding gap for basic non-woven fabric and an elastic film to pass through, the peripheral side surface of the first indentation forming roller is provided with first forming bulges, the first forming bulges are in a circular table shape, the first forming bulges are distributed at equal intervals in the axial direction of the first indentation forming roller and are distributed at equal intervals in the circumferential direction of the first indentation forming roller, the interval of the first forming bulges in the axial direction of the first indentation forming roller is equal to the interval of the first forming bulges in the circumferential direction of the first indentation forming roller, the peripheral side surface of the first matching roller is provided with a circular first matching groove, and the first matching grooves are in one-to-one correspondence with the first, the first matching groove and the first forming protrusion are mutually extruded to enable the base non-woven fabric to be tensioned on the periphery of the upper first indentation forming roller, a part, close to the top end face of the first forming protrusion, of the base non-woven fabric forms a flat part, a part, located between the adjacent first forming protrusions, of the base non-woven fabric forms uniformly distributed natural bulges, and the extrusion bonding gap is located between the top end face of the first forming protrusion and the pressing roller and enables the flat part to be bonded with the elastic membrane.

Further, the top end face of the first forming protrusion is a plane perpendicular to the axial direction of the first forming protrusion.

Further, the top end face of the first forming protrusion is an arc face parallel to the outer peripheral side face of the first indentation forming roller.

Further, the pressing roller is a smooth roller.

Furthermore, the press-fit roller is replaced by a second indentation forming roller, the peripheral side surface of the second indentation forming roller is provided with a second forming bulge, the second forming bulge is in a round table shape, one side of the second indentation forming roller is provided with a second matching roller, the peripheral side surface of the second matching roller is provided with a circular second matching groove, the second matching grooves are in one-to-one correspondence with the second forming bulge, the second matching grooves and the second forming bulge are mutually extruded to enable the base non-woven fabric to be tensioned on the periphery of the upper second indentation forming roller, and the part of the base non-woven fabric tightly attached to the top end surface of the second forming bulge forms a flat part, the parts of the base non-woven fabrics between the adjacent second forming bulges form uniformly distributed natural bulges, and the top end surfaces of the second forming bulges and the top end surfaces of the first forming bulges are in one-to-one correspondence to form extrusion bonding gaps so that the flat parts on the two layers of base non-woven fabrics are bonded with the two sides of the elastic membrane respectively.

Further, the top end face of the second forming protrusion is a plane perpendicular to the axial direction thereof.

Further, the top end face of the second forming protrusion is an arc face parallel to the outer peripheral side face of the first indentation forming roller.

Further, the shape and the size of the top end face of the second forming protrusion are the same as those of the top end face of the first forming protrusion.

The invention also provides an arbitrary-direction stretching non-woven fabric which comprises a basic non-woven fabric and an elastic film, wherein the basic non-woven fabric is extruded with the first indentation forming roller through the first matching roller of the arbitrary-direction stretching non-woven fabric production device to form a structure with a flat part and uniformly distributed natural bulges, and the flat part and the elastic film are extruded and bonded with the first indentation forming roller through the smooth surface roller.

The invention also provides an arbitrarily-stretched non-woven fabric which comprises two layers of basic non-woven fabrics and an elastic membrane, wherein one layer of basic non-woven fabric is extruded by a first matching roller and a first indentation forming roller of the arbitrarily-stretched non-woven fabric production device to form a structure with a flat part and natural bulges, the other layer of basic non-woven fabric is extruded by a second matching roller and a second indentation forming roller of the arbitrarily-stretched non-woven fabric production device to form a structure with a flat part and uniformly-distributed natural bulges, and the flat parts of the two layers of basic non-woven fabrics are respectively extruded and bonded with two sides of the elastic membrane by the first indentation forming roller and the second indentation forming roller.

After the technical scheme is adopted, the invention has the following advantages: the non-woven fabric is extruded by the matching of the first forming bulges in the shape of a circular truncated cone and the first circular matching grooves, the non-woven fabric is stretched and deformed along the circumference of the first forming bulges after being extruded, so that uniform acting force is generated on the parts, positioned between the adjacent first forming bulges, of the non-woven fabric, when the first matching grooves are separated from the first forming bulges, the non-woven fabric is tensioned on the periphery of the first indentation forming roller and is actually tensioned on the first forming bulges, and the parts, positioned between the adjacent first forming bulges, of the non-woven fabric lose the extruding acting force of the first matching grooves and have a recovery trend, but cannot be completely recovered to a flat state under the influence of the tensioning of the flat parts on the first forming bulges, because the first forming bulges are distributed at equal intervals in the axial direction of the first indentation forming roller and are distributed at equal intervals in the circumferential direction of the first indentation forming roller, the interval of the first forming bulges in the axial direction of the first indentation forming roller is equal to the interval of the first forming bulges in the circumferential direction of the first indentation forming roller, so that the part, which is positioned between the adjacent first forming bulges, of the non-woven fabric can be restored into uniformly distributed natural bulges relatively to the tensioning flat part, and then the flat part is bonded with the elastic membrane, so that a gap is reserved between the natural bulges and the elastic membrane, after the non-woven fabric finished product obtained after bonding is stretched in any direction, the natural bulges can be deformed to the flat state, the non-woven fabric can be stretched without considering the elastic direction of the non-woven fabric, and therefore the elastic deformation of the elastic membrane in any direction is not influenced, and a good elastic effect can be obtained by utilizing the elasticity of the elastic membrane. The leveling part has a certain area, so that the non-woven fabric and the elastic membrane are bonded more firmly, and the product quality is better.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of an apparatus for producing a random direction stretch nonwoven fabric according to an embodiment of the present invention;

FIG. 2 is an enlarged view taken at I in FIG. 1;

FIG. 3 is a schematic view of a first indentation forming roll according to a first embodiment of the invention;

FIG. 4 is an enlarged view at III of FIG. 3;

FIG. 5 is an enlarged view taken at II in FIG. 1;

FIG. 6 is a schematic view of an apparatus for producing a random direction stretch nonwoven fabric according to a second embodiment of the present invention;

fig. 7 is an enlarged view at IV in fig. 6.

Detailed Description

The first embodiment is as follows:

as shown in fig. 1 to 5, the present invention provides an arbitrary direction stretching non-woven fabric production apparatus, comprising a frame, and a first fitting roller 1, a first indentation forming roller 2 and a pressing roller 3 which are arranged on the frame, wherein the first fitting roller 1 and the first indentation forming roller 2 are pressed against each other, the pressing roller 3 and the first indentation forming roller 2 are pressed against each other and form a pressing and bonding gap through which a base non-woven fabric 91 and an elastic film 92 pass, a first forming protrusion 21 is arranged on an outer circumferential side surface of the first indentation forming roller 2, the first forming protrusion 21 is in a circular truncated cone shape, the first forming protrusions 21 are distributed at equal intervals in an axial direction of the first indentation forming roller 2 and are distributed at equal intervals in a circumferential direction of the first indentation forming roller 2, an interval of the first forming protrusion in the axial direction of the first indentation forming roller is equal to an interval of the first forming protrusion in the circumferential direction of the first indentation forming roller, a first fitting groove 11 which is circular is arranged on an outer circumferential side surface of the, the first matching grooves 11 correspond to the first forming protrusions 21 one by one, the first matching grooves 11 and the first forming protrusions 21 are mutually extruded to enable the base non-woven fabric to be tensioned on the periphery of the upper first indentation forming roller 2, the parts, close to the top end faces of the first forming protrusions 21, of the base non-woven fabric form the leveling parts 911, the parts, located between the adjacent first forming protrusions 21, of the base non-woven fabric form the natural bulges 912 which are uniformly distributed, the extrusion bonding gaps are located between the top end faces of the first forming protrusions 21 and the pressing roller 3, and the leveling parts 911 are bonded with the elastic film to form a finished product of the non-woven fabric 9 which can be stretched in any direction.

The base non-woven fabric is extruded through the matching of the first forming bulges 21 in the shape of a circular truncated cone and the first matching grooves 11 in the shape of a circular truncated cone, the base non-woven fabric is stretched and deformed along the circumference of the first forming bulges 21 after being extruded, so that uniform acting force is generated on the parts, positioned between the adjacent first forming bulges 21, of the base non-woven fabric, after the first matching grooves 11 are separated from the first forming bulges 21, the base non-woven fabric is tensioned on the periphery of the upper first indentation forming roller 2 and is actually tensioned on the first forming bulges 21, the parts, positioned between the adjacent first forming bulges 21, of the base non-woven fabric lose the extruding acting force of the first matching grooves 11 and are in a recovery trend, but cannot be completely recovered to a flat state under the influence of the fact that the first forming bulges 21 are distributed at equal intervals in the axial direction of the first indentation forming roller 2 and are distributed at equal intervals in the circumferential direction of the first indentation forming roller 2, the distance between the first forming bulges in the axial direction of the first indentation forming roller is equal to the distance between the first forming bulges in the circumferential direction of the first indentation forming roller, so that the part, positioned between the adjacent first forming bulges 21, of the base non-woven fabric can be recovered to form the natural bulges 912 which are uniformly distributed relative to the tensioned flattening part 911, and then the flattening part 911 is bonded with the elastic membrane, so that a gap is reserved between the natural bulges 912 and the elastic membrane, after the bonded finished product of the random-direction stretching non-woven fabric 9 is stretched in any direction, the natural bulges 912 can deform to a flat state, the non-woven fabric can be stretched without considering the elastic direction of the non-woven fabric, the elastic deformation of the elastic membrane in any direction is not influenced, and therefore, a good elastic effect can be obtained by utilizing the elasticity of the elastic membrane. The leveling part has a certain area, so that the non-woven fabric and the elastic membrane are bonded more firmly, and the product quality is better.

Since the first forming protrusion 21 has a small size, the top end surface 211 of the first forming protrusion 21 may be selected to be a plane perpendicular to the axial direction thereof or a plane close thereto, as long as the processing is convenient and the adhesion effect is ensured. In addition, the top end surface of the first forming protrusion 21 may be selected to be a curved surface parallel to the outer peripheral side surface of the first indentation forming roller 2, so that the force applied to the flat portion and the elastic film is more uniform when the first indentation forming roller 2 and the pressing roller 3 are rotationally pressed.

In this embodiment, a layer of base nonwoven is used to bond the elastic film, so the nip roller 3 is selected to be a smooth roll.

Example two:

as shown in fig. 6, the difference between the present embodiment and the first embodiment is that the stitching roller is replaced by a second indentation forming roller 4, the peripheral side surface of the second indentation forming roller 4 is provided with a second forming protrusion 41, the second forming protrusion 41 is in a circular truncated cone shape, one side of the second indentation forming roller 4 is provided with a second matching roller 5, the peripheral side surface of the second matching roller 5 is provided with a second matching groove, the second matching groove is in one-to-one correspondence with the second forming protrusion 41, the second matching groove and the second forming protrusion 41 are pressed against each other to tension the base nonwoven on the periphery of the upper second indentation forming roller 4, a part of the base nonwoven 91, which is close to the top end surface of the second forming protrusion 41, forms a flat part 911, a part of the base nonwoven, which is located between adjacent second forming protrusions 41, forms a natural bulge 912, the top end surfaces of the second forming protrusion 41 and the top end surface of the first forming protrusion 21 are in one-to-one correspondence to form a pressing bonding gap, so that the top The two sides of the film are bonded together so that the flat parts 911 of the two base nonwoven fabrics are bonded to the two sides of the elastic film, respectively, to form a finished product of the arbitrarily oriented nonwoven fabric 9.

The tip end surface of the second forming projection 41 may be a plane perpendicular to the axial direction thereof, similarly to the first forming projection 21, or alternatively, the tip end surface of the second forming projection 41 may be an arc surface parallel to the outer peripheral side surface of the first indentation-forming roller 2.

In order to secure the effect of the press-bonding, the tip end surface of the second forming protrusion 41 and the tip end surface of the first forming protrusion 21 have the same shape and size, and the two base nonwoven fabrics may not be differentiated into the front and back surfaces.

Other contents not described in this embodiment may refer to embodiment one.

Example three:

as shown in fig. 1 and 5, the present invention further provides an arbitrary direction stretch nonwoven 9, which comprises a base nonwoven 91 and an elastic film 92, wherein the base nonwoven 91 is pressed against the first indentation forming roller 2 by the first matching roller 1 of the arbitrary direction stretch nonwoven production apparatus according to the first embodiment to form a structure having a flat portion 911 and uniformly distributed natural bulges 912, and the flat portion 911 and the elastic film 92 are pressed against the first indentation forming roller by the smooth surface roller. The randomly stretched nonwoven fabric 9 of the present embodiment can obtain uniform and good elasticity in any direction.

Other contents not described in this embodiment may refer to embodiment one.

Example four:

as shown in fig. 6 and 7, the present invention further provides an arbitrarily oriented stretch nonwoven fabric comprising two layers of base nonwoven fabrics 91 and an elastic film 92, wherein the base nonwoven fabric 91 is pressed by a first mating roll and a first creasing roller of the arbitrarily oriented stretch nonwoven fabric manufacturing apparatus according to the second embodiment to form a structure having a flat portion 911 and natural bulges 912, the base nonwoven fabric 91 is pressed by a second mating roll and a second creasing roller of the arbitrarily oriented stretch nonwoven fabric manufacturing apparatus according to the second embodiment to form a structure having a flat portion 911 and uniformly distributed natural bulges 912, and the flat portions of the two layers of base nonwoven fabrics 91 are respectively pressed and bonded to both sides of the elastic film 92 by the first creasing roller and the second creasing roller. The randomly stretched nonwoven fabric 9 of the present embodiment can obtain uniform and good elasticity in any direction.

Reference may be made to embodiment two for other matters not described in this embodiment.

Other embodiments of the present invention than the preferred embodiments described above, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, should fall within the scope of the present invention defined in the claims.