CN116270024A - Wrapping and folding system for elastic left and right waist patches of paper diaper and manufacturing method of wrapping and folding system - Google Patents

Abstract

The invention relates to a folding system of an elastic left and right waist patch of a paper diaper and a manufacturing method thereof, comprising the following steps: a first conveying path on which a conveying unit, a folding adsorption unit, and a folding unit are arranged; a conveying unit and a cutter unit are arranged on the second conveying path along the flow direction; the conveying unit conveys the composite semi-finished product of the adsorption paper diaper along a first conveying path in a negative pressure adsorption mode; the wrapping unit and the folding adsorption unit are arranged up and down and are connected with the downstream side of the conveying unit; and the folding adsorption unit is used for gradually adsorbing and folding the left and right elastic waist patches on the skin side of the semi-finished product continuum of the paper diaper body in a negative pressure adsorption mode through the folding adsorption holes to form a semi-finished product of the paper diaper. The invention ensures that after the cutter unit is cut off, the thin elastic left and right waist pastes cannot generate folds and CD direction position shift, and in the folding process, the fluctuation condition of the elastic left and right waist pastes cannot be generated, so that the folding performance is stable, and the folding quality and precision are improved.

Description

Wrapping and folding system for elastic left and right waist patches of paper diaper and manufacturing method of wrapping and folding system

Technical Field

The invention relates to the technical field of manufacturing equipment of disposable sanitary products, in particular to a baby diaper, an adult diaper and the like, and particularly relates to a folding system of elastic left and right waist patches of a diaper and a manufacturing method thereof.

Background

As shown in fig. 1, a plan view of a disposable diaper in the prior art is shown, the disposable diaper S has a diaper body S1 and a pair of left and right waist patches S2 disposed at both ends of the rear side of the diaper body S1, and when worn, the left and right waist patches S2 are fixed to a front waist patch S3 at the front end of the diaper body S1, so that the disposable diaper S is in a closed state, thereby forming a pant shape with one waist opening and two leg openings. In general, the left and right waist patches S2 are formed by combining a spun-bonded nonwoven fabric S21' (or SMS composite nonwoven fabric) and a hook S22, and the hook S22 is a hook-shaped fabric on one side. The front waist patch S3 is a non-woven fabric or a PP film and the like matched with the magic hook S22, and the front waist patch S3 and the PP film are pasted together to generate natural adhesion, and can be naturally separated by pulling the front waist patch by hand, so that the disposable diaper wearing and taking-off performances are met.

In the disposable diaper manufacturing process, in order to put the product in the bag at the later stage, a pair of left and right waist patches S2 on two sides need to be folded towards the diaper body S1 side, when the left and right waist patches S2 are of spun-bonded non-woven fabrics S21' (or SMS composite non-woven fabrics) and magic hooks S22, due to the hardness of the material, after the cutter unit cuts the left and right waist patches on two sides into a preset length, a hammer roller is arranged below the cutter unit and used for conveying and attaching (transferring) the left and right waist patches S2 on two sides after cutting to the diaper body S1, and then the diaper can smoothly enter a wrapping and folding device, and the left and right waist patches S2 on two sides are folded towards the diaper body S1 side by utilizing a wrapping and folding plate in the wrapping and folding device.

The use of an off-line elastic material instead of a spunbond nonwoven (or SMS composite nonwoven) as a substrate for the left and right waist patches S2 to form an elastic composite is now on the market, wherein the elastic material includes structures such as an elastic film and an elastic rubber band. Because the elastic composite material has the expansion and contraction characteristics, the left and right waist sticks S2 which are relatively inelastic are poor in stiffness (rigidity), the material is often thinner, and the elastic material is easy to deform, unstable in tension and the like during conveying. Therefore, when the left and right waist patches S2 are cut and folded by the original process, the stiffness of the elastic material is insufficient (reduced by half compared with the stiffness of the conventional spun-bonded non-woven fabric material), after the cutter unit is cut, the tension is broken, the left and right waist patches S2 are easily wrinkled, and the CD direction position is shifted (the CD direction is the direction perpendicular to the main process direction), thereby causing poor transfer. And when the belt enters the folding device for folding, the left and right waist pastes S2 generate irregular fluctuation in the running process of equipment due to insufficient material rigidity, so that the folding performance is poor, and the folding quality and precision are greatly influenced.

Disclosure of Invention

In order to solve the technical problems that in the folding process of a disposable diaper with elastic left and right waist patches in the prior art, the tension of the elastic left and right waist patches is damaged due to poor stiffness (rigidity), the disposable diaper is easy to fold and the position of the CD direction is shifted, one embodiment of the invention provides a folding system of the elastic left and right waist patches of the diaper, which comprises: a first conveyance path as a main path and a second conveyance path as a sub path, the second conveyance path being disposed above the first conveyance path, the second conveyance path being for processing a pair of elastic left and right waist-patch continuum with a hook-and-loop combined on one side and conveying the same onto the first conveyance path;

The conveying unit, the folding adsorption unit and the wrapping unit are arranged on the first conveying path, and the conveying unit and the cutter unit are arranged on the second conveying path along the flow direction;

the cutter unit is arranged on the upstream side of the conveying unit and is used for cutting the pair of left and right waist patches into a pair of elastic left and right waist patches with preset lengths, conveying and attaching the cut pair of elastic left and right waist patches to two sides of the semi-finished product of the paper diaper body conveyed by the conveying unit in the first conveying path to form a composite semi-finished product of the paper diaper, wherein a part of the pair of elastic left and right waist patches is positioned at a position outside an edge line of the outer side of the semi-finished product of the paper diaper body; the semi-finished product continuous body of the paper diaper body is provided with a skin side which contacts with skin when being worn and a non-skin side which is far away from the skin side;

the conveying unit is used for adsorbing the paper diaper in a negative pressure adsorption mode, conveying the composite semi-finished product along the first conveying path, and enabling the skin side surface of the paper diaper composite semi-finished product to face downwards;

the folding adsorption unit and the folding adsorption unit are arranged up and down and are connected with the downstream side of the conveying unit, a conveying channel is formed between the folding adsorption unit and the folding unit, and the paper diaper composite semi-finished product is conveyed in the conveying channel;

The folding adsorption unit comprises a folding box body with a cavity structure, a plurality of folding adsorption holes are formed in two sides of the folding box body, which are perpendicular to a first conveying path, and a pair of elastic left and right waist pastes positioned outside edge lines outside a semi-finished product continuous body of the paper diaper body are gradually adsorbed and turned over by 180 degrees in a negative pressure adsorption mode through the folding adsorption holes and are folded on the skin side of the semi-finished product continuous body of the paper diaper body to form a semi-finished product of the paper diaper;

the wrapping unit comprises a pair of vacuum box groups arranged along a first conveying path, wherein each vacuum box group is provided with a group of conveying surfaces, one group of conveying surfaces are arranged downwards, and the vacuum box groups adsorb the paper diaper composite semi-finished product/the paper diaper semi-finished product to be conveyed along the first conveying path.

In a preferred embodiment, the packing unit further comprises a packing flap group disposed under the vacuum box group; the bag folded plate group comprises a first bag folded plate and a second bag folded plate, the first bag folded plate and the second bag folded plate are provided with profiling curved surfaces along the direction of a first conveying path, and a pair of elastic left and right waist pastes are arranged in the profiling curved surfaces of the first bag folded plate and the second bag folded plate and used for carrying out folding shaping on the pair of folded elastic left and right waist pastes.

In a preferred embodiment, the folding adsorption unit further comprises an air distribution pipe, one end of the air distribution pipe is communicated with the inside of the folding box body and is communicated with the plurality of folding adsorption holes, and the other end of the air distribution pipe is connected with the adsorption device.

In a preferred embodiment, the conveying unit comprises a first vacuum box, a first driving roller, a first driven roller and a first conveying belt, wherein the first vacuum box is of a cavity structure;

the first conveyor belt is circumferentially arranged outside the circumferences of the first driving roller and the first driven roller, and the first vacuum box is positioned inside the first conveyor belt;

the first vacuum box is provided with a first conveying surface, a plurality of first holes are formed in the first conveying surface, and holes corresponding to the first holes are formed in the first conveying belt.

In a preferred embodiment, the second conveying path further includes a first free roller located at an upstream side of the conveying unit for guiding the conveying path of the pair of elastic left and right waist band continuous bodies and an application unit disposed at an upstream side of the cutter unit for applying the hot melt adhesive on the composite surface of the pair of elastic left and right waist band continuous bodies.

In a preferred embodiment, the cutter unit includes a cutter roller including a blade and a base roller including an anvil, and the pair of elastic left and right waist-band continuous bodies is cut into a pair of elastic left and right waist-bands of a predetermined length when the blade of the cutter roller abuts against the base anvil of the base roller.

In a preferred embodiment, a plurality of adsorption holes are formed in the circumferential outer side surface of the bottom roller; the central line of the bottom roller is perpendicular to the first conveying surface of the first vacuum box of the conveying unit, the bottom roller is cut off through adsorption holes to form a pair of elastic left and right waist patches, and the pair of elastic left and right waist patches are conveyed and attached to two sides of the paper diaper body semi-finished product continuum conveyed on the first vacuum box of the conveying unit.

In a preferred embodiment, the vacuum box group comprises a second vacuum box and a third vacuum box which are arranged in parallel, the first package flap is arranged below the second vacuum box, and the second package flap is arranged below the third vacuum box;

the inside cavity structure that is of second vacuum box and third vacuum box, the lower surface of second vacuum box forms the second conveying face, and the lower surface of third vacuum box forms the third conveying face, offers the second hole on the second conveying face, offers the fourth hole on the third conveying face, wherein, the second hole with the regional position of a lateral edge line of panty-shape diapers body semi-manufactured goods continuum corresponds, the fourth hole with the regional position of another lateral edge line of panty-shape diapers body semi-manufactured goods continuum corresponds.

In a preferred embodiment, the second conveying surface is further provided with a third hole, and a fifth hole is further formed in the third conveying surface, where the third hole is located at a position on the downstream side of the second vacuum box, and the fifth hole is located at a position on the downstream side of the third vacuum box;

the third hole and the fifth hole respectively correspond to the positions of the left and right waist patches of the elasticity of the folded semi-finished paper diaper.

In a preferred embodiment, the folding unit further comprises a driving roller group, a driven roller group and a conveyor belt group;

the driven roller group includes a second driven roller disposed at both ends of the second vacuum box along the first conveying path, and a third driven roller disposed at both ends of the third vacuum box along the first conveying path;

the conveyor belt group includes a second conveyor belt disposed circumferentially outward of the drive roller group and the second driven roller, and a third conveyor belt disposed circumferentially outward of the drive roller group and the third driven roller;

the second vacuum box is positioned on the inner side of the second conveyor belt, and the third vacuum box is positioned on the inner side of the third conveyor belt;

the second conveyor belt is provided with holes corresponding to the second holes and the third holes, and the third conveyor belt is provided with holes corresponding to the fourth holes and the fifth holes.

In a preferred embodiment, the wrapping unit further includes a roller group disposed on the first conveying path on a downstream side of the wrapping flap group, and a pressing roller group corresponding to the roller group;

the roller set comprises a first roller and a second roller, and the press roller set comprises a first press roller and a second press roller; a first opening is formed in the downstream side of the second conveying surface of the second vacuum box, and a second opening is formed in the downstream side of the third conveying surface of the third vacuum box;

the first roller is installed in the second vacuum box and embedded in the first opening; the second roller is arranged in the third vacuum box and embedded in the second opening;

the outer side of the circumference of the first roller passes through the first opening to be abutted against the first compression roller, and the outer side of the circumference of the second roller passes through the second opening to be abutted against the second compression roller.

In a preferred embodiment, the folding unit further comprises an adjusting member including a connector, a pair of adjusting bars and a pair of handles;

the second vacuum box and the third vacuum box are adjustably connected to the connecting piece, and the connecting piece is connected with the mounting base surface; one end of a pair of adjusting rods is respectively and adjustably connected with the second vacuum box and the third vacuum box, and the other end of the pair of adjusting rods is respectively connected with a pair of handles;

When the handle is rotated, the adjusting rod drives the second vacuum box and/or the third vacuum box to move along the direction perpendicular to the first conveying path.

In a preferred embodiment, the first conveying path further comprises a second free roller for guiding the transport path of the pant diaper body blank continuum/the pant diaper blank;

the second free roller positioned on the downstream side of the folding unit turns the semi-finished diaper product with the downward skin side into the semi-finished diaper product with the upward skin side, and conveys the semi-finished diaper product to the downstream side;

the embodiment of the invention also provides a manufacturing method of the elastic left and right waist patches of the paper diaper, which comprises the following processing procedures of the elastic left and right waist patches: processing a pair of elastic left and right waist patch continuous bodies with magic hooks combined on one surface on a second conveying path, and conveying the elastic left and right waist patch continuous bodies to the first conveying path; and (3) a paper diaper semi-finished product processing procedure: processing the semi-finished product continuum of the paper diaper body conveyed on the upstream side on a first conveying path to form a semi-finished product of the paper diaper;

in a preferred embodiment, on the second conveying path, cutting a pair of elastic left and right waist patches with hooks combined on one surface into a pair of elastic left and right waist patches with preset lengths, and conveying and attaching the elastic left and right waist patches to two sides of the semi-finished product continuous body of the paper diaper body on the first conveying path to form a paper diaper composite semi-finished product, wherein a part of the pair of elastic left and right waist patches is positioned at a position outside an edge line of the semi-finished product continuous body of the paper diaper body, and the skin of the paper diaper composite semi-finished product faces downwards; on a first conveying path, gradually adsorbing and overturning the pair of elastic left and right waist patches positioned at the outer part of the edge line of the continuous body of the paper diaper body by 180 degrees, and folding the elastic left and right waist patches on the skin side of the continuous body of the paper diaper body to form a paper diaper semi-finished product;

In a preferred embodiment, on the first conveying path, a pair of elastic left and right waist patches positioned outside the outer edge line of the semi-finished product continuous body of the paper diaper body are gradually adsorbed and turned over by 180 degrees in a negative pressure adsorption mode, and are folded on the skin side of the semi-finished product continuous body of the paper diaper body to form a semi-finished product of the paper diaper;

in a preferred embodiment, the method further comprises a turning process: and turning the semi-finished diaper product with the downward skin side into the semi-finished diaper product with the upward skin side, and conveying the semi-finished diaper product to the downstream side.

The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:

the invention provides a folding system for elastic left and right waist patches of a paper diaper and a manufacturing method thereof. The folding adsorption unit is arranged on the downstream side of the conveying unit, and a pair of elastic left and right waists are attached to the sides of the paper diaper body for adsorption under the action of negative pressure air by utilizing folding adsorption holes formed in the two side faces of the folding adsorption unit, so that the folding purpose is achieved.

The invention provides a folding system of an elastic left and right waist patch of a paper diaper and a manufacturing method thereof, which aim at folding of the left and right waist patches made of a thinner elastic material with poor stiffness, and ensure that the elastic left and right waist patches cannot generate bad transfer phenomena such as wrinkles, CD direction position shift and the like after a cutter unit is cut off. The invention has simple structure, and the elastic left and right waist pastes can not generate fluctuation and other conditions in the folding process, so that the folding performance is stable, and the folding quality and precision are improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a plan view schematically showing the development of a disposable diaper according to the prior art.

Fig. 2 is a plan view schematically showing the development of the disposable diaper of the present invention.

Fig. 3 is a schematic plan view of the disposable diaper according to the present invention after the left and right waist patches are folded.

Fig. 4 is a schematic diagram of a folding system for elastic left and right waist patches of a diaper according to the present invention.

Fig. 5 is a top view of the transfer unit of the present invention.

Fig. 6 is a step diagram of a product processed by the folding system of the present invention.

Fig. 7 is a schematic view of the folding adsorption unit of the present invention for gradually folding the elastic left and right waist bands.

Fig. 8 is a bottom view of the folding unit of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented, for example, in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The folding system for the elastic left and right waist patches of the disposable diaper provided by the invention is used in production equipment of the disposable diaper, a pair of elastic left and right waist patches positioned on two sides of the disposable diaper are cut into a predetermined length and then are transmitted and attached to the body of the disposable diaper, and the pair of elastic left and right waist patches are folded towards the side of the body of the disposable diaper, so that the disposable diaper is convenient for subsequent products to enter bags.

In order to more clearly explain the present invention, it is necessary to explain the structure of the left and right waist patches made of an elastic material, as shown in fig. 2, which is a schematic plan view of the disposable diaper according to the present invention after being unfolded, and fig. 3, which is a schematic plan view of the disposable diaper according to the present invention after being folded, the disposable diaper S (final molded product) has a longitudinal direction and a width direction perpendicular to each other, and includes a diaper body S1 and a pair of elastic left and right waist patches S2 disposed at the rear side, wherein the elastic left and right waist patches S2 are composed of an elastic material S21 and a hook S22, and the elastic material S21 may be an elastic film and an elastic rubber band under a thread, which is characterized by being thinner and weaker than a spun-bonded nonwoven fabric as a general left and right waist patch base material. The disposable diaper S has a skin side contacting the skin when worn and a non-skin side away from the skin side, and when viewed from the skin side (the side contacting the skin), the hook S22 is composed of a hook-like fabric on one side, which has a characteristic of naturally adhering to a pile-like fabric on the other side, and is naturally separated when pulled by a hand, and the hook S22 is combined above the elastic material S21. The disposable diaper S further comprises a front waist patch S3 disposed on the non-skin side (side not contacting with skin) of the diaper body S1, the front waist patch S3 is a non-woven fabric or PP film-coil for matching with the hook S22, and when the disposable diaper S is worn, the elastic left and right waist patches S2 are fixed on the front waist patch S3 on the front side of the diaper body S1, so that the disposable diaper S is in a closed state, thereby forming a pants shape with one waist opening and two leg openings.

In order to facilitate the subsequent product insertion of the disposable diaper S, in the process of manufacturing the disposable diaper S, a pair of elastic left and right waist patches S2 located on both sides need to be folded toward the diaper body S1 side along the outer edge line S0 of the diaper body S1 in the width direction, as shown in fig. 3.

The invention provides a folding system of elastic left and right waist patches of a disposable diaper, wherein the elastic left and right waist patches are made of elastic materials, and the folding system is positioned at a process station in the middle of disposable diaper manufacturing equipment, so that a formed disposable diaper S is still in the processing process, and a diaper body S1 is a semi-finished product continuous body S1' of the diaper body, namely, the diaper body S1 is still in a continuous and non-cut state. The pair of elastic left and right waist patches S2 is also a pair of elastic left and right waist patch continuous bodies S2', that is, the pair of elastic left and right waist patches S2 are still in a continuous and uncut state, but the elastic material S21 and the hook S22 have been compounded, that is, the compound surface of the elastic left and right waist patches S2 has been compounded with the hook S22.

The invention provides a folding system for elastic left and right waist patches of a paper diaper, which cuts a pair of elastic left and right waist patch continuous bodies S2' into a pair of elastic left and right waist patches S2 with preset length, conveys and attaches the cut pair of elastic left and right waist patches S2 on two sides of a paper diaper body semi-finished product continuous body S1' to form a paper diaper composite semi-finished product, and folds the pair of elastic left and right waist patches S2 along an outer edge line S0 along the width direction to the side of the paper diaper body S1 to form the paper diaper semi-finished product S '. The width direction is a direction perpendicular to the flow direction, and is also referred to as the CD direction.

As shown in fig. 4, a schematic diagram of a folding system for elastic left and right waist patches of a diaper according to the present invention, fig. 5 is a top view of a conveying unit according to the present invention, fig. 6 is a step diagram of a product processed by the folding system according to the present invention, fig. 7 is a schematic diagram of a folding adsorption unit according to the present invention for gradually folding the elastic left and right waist patches, and fig. 8 is a bottom view of the folding unit according to the present invention.

Referring to fig. 4 to 8, according to an embodiment of the present invention, there is provided a folding system for elastic left and right waist patches of a diaper, including: the first conveying path L1 as a main path and the second conveying path L2 as a sub path, the second conveying path L2 being arranged above the first conveying path L1, the second conveying path L2 being for processing a pair of elastic left and right waist-plaster continuous bodies S2' having a hook-and-loop combined on one surface into a pair of elastic left and right waist-plaster S2 and conveying them onto the first conveying path L1.

The first conveying path L1 is a main conveying path, and the direction of the main conveying path is the conveying direction of equipment, so as to form a conveying path of a main disposable diaper S, wherein in the invention, a pair of cut elastic left and right waist patches S2 are compounded on a semi-finished continuous diaper body S1' according to the distance of one disposable diaper S, and the elastic left and right waist patches S2 are folded towards the semi-finished continuous diaper body S1' along the outer edge line S0 of the semi-finished continuous diaper body S1 '. In the embodiment of the present invention, the direction perpendicular to the conveyance direction is the width direction or CD direction.

According to an embodiment of the present invention, a first free roller 1, a sizing device H, a conveying unit 2, and a cutter unit 3 are disposed on a second conveying path L2, and the first conveying path L1 is provided with a conveying unit 4, a folding adsorption unit 5, a folding unit 6, a transfer unit 7, and a second free roller 8.

In the second conveyance path L2, the conveyance unit 2 is disposed on the upstream side of the cutter unit 3, the first free roller 1 is disposed on the upstream side of the conveyance unit 2, and the first free roller 1 is used to guide the conveyance path of the pair of elastic left and right waist-mounted continuous bodies S2'. The applying unit H is provided on the upstream side of the cutter unit 3, and is used for applying the hot melt adhesive on the composite surface of the pair of elastic left and right waist-plaster continuous bodies S2'. In this embodiment, two first free rollers 1 are arranged, and the sizing unit H is located at a position above the path formed by the two first free rollers 1, and then the left and right continuous body S2' of waist tape enters the conveying unit 2. Of course, the applying unit H may be disposed above the conveying unit 2, as long as it is disposed before the pair of left and right continuous lumbar vertebrae S2' enter the cutter unit 3, and may be specifically determined according to the actual situation.

The conveying unit 2 is configured to convey a pair of elastic left and right continuous lumbar bands S2' along the second conveying path L2 into the cutter unit 3. The conveying unit 2 can adopt a negative pressure adsorption mode (such as a vacuum box structure) to ensure the stability and the position accuracy of conveying the elastic left and right waist-attached continuous bodies S2' before cutting.

According to an embodiment of the present invention, the cutter unit 3 is disposed at an upstream side of the conveying unit 4 for cutting the pair of elastic left and right waist-band continuous bodies S2 'into a pair of elastic left and right waist-band S2 of a predetermined length and conveying and attaching the cut pair of elastic left and right waist-band S2 to both sides of the diaper body semi-finished product continuous body S1' conveyed by the conveying unit 4 in the first conveying path L1 to form a diaper composite semi-finished product. Wherein, a part of the pair of elastic left and right waist sticks S2 is positioned at a position other than the outer edge line S0 of the semi-finished product continuous body S1 'of the paper diaper body, and the semi-finished product continuous body S1' of the paper diaper body has a skin side contacted with skin and a non-skin side far from the skin side when being worn.

The cutter unit 3 includes a cutter roller 31 and a anvil roller 32, the cutter roller 31 being located above the anvil roller 32, the cutter roller 31 including a blade (not shown in the drawings), and the anvil roller 32 including an anvil (not shown in the drawings). When the blade of the cutter roller 31 abuts against the anvil of the anvil roller 32, the pair of elastic left and right waist-band continuous bodies S2' is cut into a pair of elastic left and right waist-bands S2 of a predetermined length.

The bottom roller 32 has a hollow structure, and is externally connected with an adsorption device (such as a fan, etc.), a plurality of adsorption holes (not shown in the figure) are formed in the circumferential outer side surface of the bottom roller 32, a central line of the bottom roller 32 is perpendicular to a first conveying surface M1 (described below) of the first vacuum box 41 of the conveying unit 4, the bottom roller 32 is used for adsorbing the left and right waist patches S2 after being cut off by adsorption, and conveying and attaching the left and right elastic waist patches S2 to two sides of the semi-finished product continuous body S1' of the paper diaper body conveyed on the first vacuum box 41 of the conveying unit 4 to form a composite semi-finished product of the paper diaper. That is, the bottom roller 32 adsorbs the pair of elastic left and right waist patches S2 to the adsorption holes on the surface of the bottom roller 32 by the negative pressure generated by the adsorption device, and transfers the elastic left and right waist patches S2 onto the first transfer path L1 to be combined with the diaper body semi-finished product continuous body S1'.

Specifically, the bottom roller 32 is disposed above the conveying unit 4 on the first conveying path L1, and is engaged with the conveying unit 4, for compositing a pair of elastic left and right waist patches S2 at the set two side positions of the continuous body S1' of the diaper body semi-finished product sent to the first conveying path L1, to form a composite semi-finished product of the diaper.

According to the embodiment of the present invention, the conveying unit 4 conveys the composite semi-finished diaper (the pair of elastic left and right waist patches S2 are combined at the positions on both sides set by the semi-finished diaper body continuum S1') along the first conveying path L1 in a negative pressure adsorption manner, and the skin side of the composite semi-finished diaper faces downward. In a specific embodiment, the first conveying path L1 includes a second free roller 8 for guiding the conveying path of the pant diaper body semi-finished product continuous body S1', and guiding the conveying path of the pant diaper semi-finished product S', the second free roller 8 for guiding the conveying path of the pant diaper body semi-finished product continuous body S1 'is located at the upstream side of the conveying unit 4, and the second free roller 8 for guiding the conveying path of the pant diaper semi-finished product S' is located at the downstream side of the transferring unit 7.

The pant diaper body semi-finished product continuous body S1' is conveyed to the conveying unit 4 via the second free roller 8 located on the upstream side of the conveying unit 4. Namely: the second free roller 8 located on the upstream side of the conveying unit 4 guides the conveyance path of the diaper body semi-finished product continuous body S1 'to convey the diaper body semi-finished product continuous body S1' to the conveying unit 4.

The conveying unit 4 includes a first vacuum box 41, a first driving roller 42, a first driven roller 43, and a first conveying belt 44, the first conveying belt 44 being circumferentially arranged outside the first driving roller 42 and the first driven roller 43, the first vacuum box 41 being located inside the first conveying belt 44. The first vacuum box 41 has a hollow structure, and is externally connected with an adsorption device (a fan, etc.), and the first vacuum box 41 is arranged along a first conveying path L1.

As shown in fig. 5, the first vacuum box 41 has a first conveying surface M1 provided with a plurality of first holes 411, and the first conveyor belt 44 is provided with holes corresponding to the first holes 411. The first conveyor belt 44 conveys over the first conveying surface M1.

The first vacuum box 41 adsorbs the diaper body semi-finished product continuous body S1' and the pair of elastic left and right waist patches S2 to the first conveyor belt 44 by using the negative pressure generated by the adsorption device.

When the cut elastic left and right waist patches S2 adsorbed by the bottom roller 32 are combined with the diaper body semi-finished product continuous body S1 'adsorbed by the first conveyor belt 44 at a distance of one disposable diaper S, the first conveyor belt 44 integrally adsorbs the diaper body semi-finished product continuous body S1' and the pair of elastic left and right waist patches S2 on the first conveyor belt 44 by using the negative pressure generated by the adsorption means, and is conveyed downstream by the first driving roller 42. At this time, on the conveying unit 4, a pair of elastic left and right waist patches S2 have been compounded at both side positions set for the diaper body semi-finished product continuous body S1', forming a diaper compound semi-finished product.

The vacuum adsorption structure of the conveying unit 4 ensures that no bending angle, fold and CD direction position shift exist in the process of conveying and attaching a pair of elastic left and right waist patches S2 to the semi-finished product continuous body S1 'of the paper diaper body, and the semi-finished product continuous body S1' of the paper diaper body and the pair of elastic left and right waist patches S2 are stably conveyed before folding.

According to the embodiment of the present invention, the folding unit 6 and the folding adsorption unit 5 are disposed up and down and engaged with the downstream side of the conveying unit 4. A conveying channel is formed between the folding adsorption unit 5 and the wrapping unit 6, and a semi-finished product of the composite paper diaper (a pair of elastic left and right waist patches S2 are composited at two side positions set by a semi-finished product continuum S1' of the paper diaper body) is conveyed in the conveying channel.

According to the embodiment of the present invention, the folding and adsorbing unit 5 includes a folding box 51 having a cavity structure, a plurality of folding and adsorbing holes 511 are formed on two sides C of the folding box 51 perpendicular to the first conveying path, and a pair of elastic left and right waist patches S2 located outside the outer edge line S0 of the semi-finished product continuous body S1' of the diaper body are gradually adsorbed and turned over 180 ° by the folding and adsorbing holes 511 in a negative pressure adsorption manner, and are folded on the skin side of the semi-finished product continuous body S1' of the diaper body, so as to form a semi-finished product S ' of the diaper, as shown in fig. 6 and 7.

That is, the plurality of folding suction holes 511 formed in the two side faces C of the folding case 51 in the CD direction are formed by gradually sucking the pair of elastic left and right waist patches S2 located outside the outer edge line S0 of the diaper body semi-finished product continuous body S1' by 180 ° in a negative pressure suction manner, and folding the pair of elastic left and right waist patches S on the skin side of the diaper body semi-finished product continuous body S1', and in this embodiment, the skin side of the diaper body semi-finished product continuous body S1' is provided downward.

In a specific embodiment, the folding adsorption unit 5 further includes an air distribution pipe 52, one end of the air distribution pipe 52 is connected to the inside of the folding box 51 and is connected to the plurality of folding adsorption holes 511, and the other end of the air distribution pipe 52 is connected to an adsorption device (such as a fan).

The folding box 51 guides negative pressure air generated by an adsorption device (such as a fan) into the folding adsorption holes 511 of the two side surfaces C through the air distribution pipe 52, so that a pair of elastic left and right waist patches S2 on both sides of the composite semi-finished product are adsorbed to the position of the semi-finished product continuous body S1 'of the diaper body, and the pair of elastic left and right waist patches S2 are gradually adsorbed and turned 180 degrees and folded on the skin side of the semi-finished product continuous body S1' of the diaper body.

According to the invention, through the folding adsorption unit 5, the pair of elastic left and right waist patches S2 are gradually adsorbed under the action of negative pressure air by utilizing the characteristic that the pair of elastic left and right waist patches S2 adopt the thin elastic material S21 (the thin material has obvious adsorption effect), so that the pair of elastic left and right waist patches S2 are finally effectively folded towards the position of the semi-finished product continuum S1' of the paper diaper body, the fact that the elastic left and right waist patches cannot fluctuate in the subsequent folding process is ensured, the folding performance is stable, and the folding quality and precision are improved.

According to the embodiment of the present invention, the wrapping unit 6 adsorbs the pant diaper composite semi-finished product/pant diaper semi-finished product S' in a negative pressure adsorption manner along the first conveying path L1.

According to the embodiment of the present invention, the folding unit 6 includes a pair of vacuum box groups 61, a driving roller group 62, a driven roller group 63, and a conveying belt group 64 arranged along the first conveying path L1 (conveying direction), the vacuum box groups 61 having a set of conveying surfaces, one set of conveying surfaces being disposed face down, the vacuum box groups 61 adsorbing the pant diaper composite semifinished product/pant diaper semifinished product being conveyed along the first conveying path L1.

Specifically, the vacuum box group 61 includes a second vacuum box 611 and a third vacuum box 612 arranged in parallel. The lower surface of the second vacuum box 611 forms a second conveying surface M2, and the lower surface of the third vacuum box 612 forms a third conveying surface M3. The most upstream side of the folding adsorption unit 5 is approximately at the same position as the most upstream sides of the second conveying surface M2 and the third conveying surface M3, respectively, so that the conveying and folding of the composite semi-finished product can be simultaneously performed, and the folding position precision and the folding quality are ensured.

The second vacuum box 611 and the third vacuum box 612 are of a cavity structure, a second hole 6111 and a third hole 6112 are formed in a second conveying surface M2 of the second vacuum box 611, a fourth hole 6121 and a fifth hole 6122 are formed in a third conveying surface M3 of the third vacuum box 612, wherein the second hole 6111 corresponds to an outer side edge line area position of the semi-finished diaper body continuous product S1', and the fourth hole 6121 corresponds to another outer side edge line area position of the semi-finished diaper body continuous product S1'. The third hole 6112 is located at the downstream side of the second vacuum box 611, the fifth hole 6122 is located at the downstream side of the third vacuum box 612, and the third hole 6112 and the fifth hole 6122 respectively correspond to the positions of the elastic left and right waist patches S2 after the semi-finished diaper S' is folded.

The driven roller group 63 includes second driven rollers 631 disposed at both ends of the second vacuum box 611 along the first conveying path L1 (conveying direction), and third driven rollers 632 disposed at both ends of the third vacuum box 612 along the first conveying path L1 (conveying direction).

The belt set 64 includes a second belt 641 and a third belt 642. The second belt 641 is circumferentially disposed outside the driving roller group 62 and the second driven roller 631, and the third belt 642 is circumferentially disposed outside the driving roller group 62 and the third driven roller 632. The second vacuum box 611 is located inside the second belt 641 and the third vacuum box 612 is located inside the third belt 642. The second conveyor belt 641 and the third conveyor belt 642 are conveyed below the second conveying surface M2 and the third conveying surface M3, respectively.

The second belt 641 has holes corresponding to the second hole 6111 and the third hole 6112, and the third belt 642 has holes corresponding to the fourth hole 6121 and the fifth hole 6122.

According to the embodiment of the invention, the second hole 6111 corresponds to the region of the outer edge line S0 of the semi-finished continuous body S1 'of the diaper body, and the fourth hole 6121 corresponds to the region of the other outer edge line S0 of the semi-finished continuous body S1' of the diaper body.

The second vacuum box 611 and the third vacuum box 612 are respectively externally connected with an adsorption device (such as a fan) and generate negative pressure air by the adsorption device, under the action of the adsorption device, the paper diaper composite semi-finished product is respectively adsorbed on the surfaces of the second conveying belt 641 and the third conveying belt 642 through a second hole 6111 of the second vacuum box 611 and a fourth hole 6121 of the third vacuum box 612 for conveying, and meanwhile, a pair of elastic left and right waist patches S2 are gradually adsorbed and turned over 180 degrees through a folding adsorption unit 5 and folded on the skin side of the paper diaper body semi-finished product continuous body S1', so that the paper diaper semi-finished product S' is formed.

In the folding process, the second hole 6111 and the fourth hole 6121 adsorb and fix the root of the outer side edge line S0 (folding position) of the diaper composite semi-finished product through the second conveyor belt 641 and the third conveyor belt 642, respectively, so that the pair of elastic left and right waist patches S2 can be folded along the outer side edge line S0.

In this embodiment, the second hole 6111 and the fourth hole 6121 are long holes arranged in a diagonal manner, and of course, other hole forms may be provided as long as the position where the outer edge line S0 region can be adsorbed is ensured.

According to an embodiment of the invention, the third hole 6112 is located on the downstream side of the second vacuum box 611 and the fifth hole 6122 is located on the downstream side of the third vacuum box 612. The third hole 6112 and the fifth hole 6122 respectively correspond to the positions of the left and right elastic waist patches S2 after the semi-finished product S' of the paper diaper is folded, negative pressure air generated by the adsorption device is utilized to adsorb the pair of left and right elastic waist patches S2 after the folding through the third hole 6112 and the fifth hole 6122, the left and right elastic waist patches S2 after the folding are fixed and transmitted to the downstream side, and the stability and the folding precision of the folding process are ensured.

Specifically, the second vacuum box 611 and the third vacuum box 612 are respectively connected with an adsorption device (such as a fan), and the adsorption device is used for negative pressure air of the product, and under the action of the adsorption device, the semi-finished product S' of the diaper is respectively adsorbed on the surfaces of the second conveyor belt 641 and the third conveyor belt 642 through the third hole 6112 of the second vacuum box 611 and the fifth hole 6122 of the third vacuum box 612 for conveying.

In the present invention, the pair of elastic left and right waist patches S2 are folded on the skin side of the diaper body semi-finished product continuous body S1 'to form the diaper semi-finished product S', and the negative pressure air passes through the third hole 6112 and the fifth hole 6122 and permeates the diaper body semi-finished product continuous body S1 '(using the air permeability of the diaper body semi-finished product continuous body S1'), the folded pair of elastic left and right waist patches S2 are adsorbed on the skin side of the diaper body semi-finished product continuous body S1', and the diaper semi-finished product S' is adsorbed on the surfaces of the second conveyor 641 and the third conveyor 642 to be conveyed.

In the conveying unit 4, the paper diaper composite semi-finished product of the elastic left and right waist patches S2 combined on the paper diaper body semi-finished product continuous body S1' is processed with the skin side facing downwards in the processing process, so that the second conveying surface M2 of the second vacuum box 611 and the third conveying surface M3 of the third vacuum box 612 in the downstream folding unit 6 are arranged downwards, and the non-skin side surface of the paper diaper composite semi-finished product faces the second conveying surface M2 and the third conveying surface M3 respectively.

According to an embodiment of the present invention, the wrapping unit 6 further includes a roller group 65 disposed on the first conveying path L1 on the downstream side of a wrapping flap group 68 (described below), and a pressing roller group 66 corresponding to the roller group 65.

The roller group 65 includes a first roller 651 and a second roller 652, and the press roller group 66 includes a first press roller 661 and a second press roller 662. The second vacuum box 611 has a first opening K1 at a downstream side of the second conveying surface M2, and the third vacuum box 612 has a second opening K2 at a downstream side of the third conveying surface M3. The first roller 651 is mounted in the second vacuum box 311 and is embedded in the first opening K1, and the second roller 652 is mounted in the third vacuum box 612 and is embedded in the second opening K2.

The circumferential outer side of the first roller 651 is in contact with the first pressing roller 661 through the first opening K1, and the circumferential outer side of the second roller 652 is in contact with the second pressing roller 662 through the second opening K2.

The first roller 651 is in contact with the first pressing roller 661, and the second roller 652 is in contact with the second pressing roller 662, so that the pair of elastic left and right waist patches S2 after folding the diaper semi-finished product S' are sandwiched. The roller set 65 and the press roller set 66 are arranged to press the folded pair of elastic left and right waist patches S2, so that the folding of the elastic left and right waist patches S2 is fixed, and the folded elastic left and right waist patches S2 are shaped better.

In a preferred embodiment, also to ensure that the folded elastic left and right waist panels S2 are better folded and better shaped by the folding and adsorbing unit 5, a bag flap set 68 is further provided under the vacuum box 61.

The group of package flaps 68 includes a first package flap 681 and a second package flap 682, the first package flap 681 being disposed below the second vacuum box 611 and the second package flap 682 being disposed below the third vacuum box 612.

The first folding flap 681 and the second folding flap 682 have contoured surfaces along the first conveying path L1, and a pair of elastic left and right waist patches S2 are disposed in the contoured surfaces of the first folding flap 681 and the second folding flap 682 for folding and shaping the pair of folded elastic left and right waist patches S2.

The contoured surfaces of the first folding plate 681 and the second folding plate 682 are used for folding and shaping the pair of elastic left and right waist patches S2 that have been absorbed and folded by the folding absorption unit 5 on the skin side of the semi-finished product continuous body S1 'of the diaper body to form a semi-finished product S' of the diaper, so as to assist in consolidating the folding of the folding absorption unit 5. The contoured surface is appropriately selected by those skilled in the art, so long as the pair of elastic left and right waist patches S2 attached to both sides of the pant diaper body semi-finished product continuous body S1 'can be folded on the skin side of the pant diaper body semi-finished product continuous body S1', and the present invention is not particularly limited.

In some embodiments, the folding and adsorbing unit 5 may directly adsorb and fold the pair of elastic left and right waist patches S2 on the skin side of the diaper body semi-finished product continuous body S1 'step by step to form the diaper semi-finished product S', which is described in detail above and will not be repeated here.

According to an embodiment of the present invention, the folding unit 6 further includes an adjusting member 67, and the adjusting member 67 is used to adjust the positions of the second vacuum box 611 and the third vacuum box 612 in the CD direction, respectively.

Specifically, the adjustment member 67 includes a connector 671, a pair of adjustment levers 672, and a pair of handles 673. The second vacuum box 611 and the third vacuum box 612 are adjustably connected to a connector 671, the connector 671 being connected to the mounting base surface, i.e. the second vacuum box 611 and the third vacuum box 612 are movable in CD direction on the connector 671.

One end of a pair of adjustment bars 672 is adjustably connected to the second vacuum box 611 and the third vacuum box 612, respectively, and the other end of the pair of adjustment bars 672 is connected to a pair of handles 673, respectively.

When the handle 673 is rotated, the adjusting lever 672 drives the second vacuum box 611 and/or the third vacuum box 612 to move along the direction (CD direction) perpendicular to the first conveying path L1, so that the second vacuum box 611 and/or the third vacuum box 612 can be adjusted along the CD direction, thereby being applicable to the second vacuum box 611 and the third vacuum box 612 reaching the ideal position in the folding process and the different positions of the second vacuum box 611 and the third vacuum box 612 in the folding process of paper diapers with different sizes, and having simple and convenient operation and high positioning accuracy.

According to an embodiment of the present invention, the folding system of the disposable diaper with the elastic left and right waist patches further includes a transferring unit 7 disposed on the first conveying path L1, the transferring unit 7 is disposed on the downstream side of the folding unit 6, and after the pair of elastic left and right waist patches S2 are folded along the outer edge line S0 of the continuous body S1 'of the semi-finished product of the diaper body by the folding adsorption unit 5 and the folding unit 6, the semi-finished product S' of the diaper is formed and conveyed by the transferring unit 7. The first conveying path L1 further comprises a second free roller 8 for guiding the conveying path of the pant diaper semi-finished product S'; wherein, a second free roller 8 positioned at the downstream side of the folding unit 6 turns the semi-finished product S ' of the diaper with the skin side facing downwards into the semi-finished product S ' of the diaper with the skin side facing upwards and conveys the semi-finished product S ' to the downstream side for the next process.

The embodiment also provides a manufacturing method of the elastic left and right waist patches of the paper diaper, which comprises an elastic left and right waist patch treatment process, a paper diaper semi-finished product processing process and a turnover process.

Elastic left and right waist paste treatment procedure: a pair of elastic left and right waist-band continuous bodies S2' each having a hook on one surface thereof is processed on the second conveying path L2, and conveyed to the first conveying path L1.

And (3) a paper diaper semi-finished product processing procedure: on the first conveying path L1, the diaper body semi-finished product continuous body S1 'conveyed on the upstream side is processed to form a diaper semi-finished product S'.

And (3) a turnover procedure: and turning the semi-finished product S ' of the diaper with the downward skin side into the semi-finished product S ' of the diaper with the upward skin side, and conveying the semi-finished product S ' to the downstream side.

The pair of elastic left and right waist-band continuous bodies S2 'with hooks combined on one surface are cut into a pair of elastic left and right waist-band continuous bodies S2 with a predetermined length on the second conveying path L2, and are conveyed and attached to two sides of the diaper body semi-finished product continuous body S1' on the first conveying path L1 to form a diaper composite semi-finished product. Wherein, a part of the pair of elastic left and right waist sticks S2 is positioned at a position other than the outer edge line S0 of the semi-finished product continuous body S1' of the paper diaper body, and the skin of the paper diaper composite semi-finished product faces downwards. On the first conveying path L1, a pair of elastic left and right waist patches S2 positioned at the outer side edge line S0 of the semi-finished product continuous body S1' of the paper diaper body are gradually adsorbed and turned over by 180 degrees in a negative pressure adsorption mode, and are folded on the skin side of the semi-finished product continuous body S1' of the paper diaper body to form a semi-finished product S ' of the paper diaper.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (17)

1. The utility model provides a system of folding over is pasted to waist about panty-shape diapers elasticity, its characterized in that, system of folding over includes: a first conveyance path as a main path and a second conveyance path as a sub path, the second conveyance path being disposed above the first conveyance path, the second conveyance path being for processing a pair of elastic left and right waist-patch continuum with a hook-and-loop combined on one side and conveying the same onto the first conveyance path;

the conveying unit, the folding adsorption unit and the wrapping unit are arranged on the first conveying path, and the conveying unit and the cutter unit are arranged on the second conveying path along the flow direction;

The cutter unit is arranged on the upstream side of the conveying unit and is used for cutting the pair of elastic left and right waist patches into a pair of elastic left and right waist patches with preset lengths, conveying and attaching the cut pair of elastic left and right waist patches to two sides of the semi-finished product of the paper diaper body conveyed by the conveying unit in the first conveying path to form a composite semi-finished product of the paper diaper, wherein a part of the pair of elastic left and right waist patches is positioned at a position outside an edge line of the outer side of the semi-finished product of the paper diaper body; the semi-finished product continuous body of the paper diaper body is provided with a skin side which contacts with skin when being worn and a non-skin side which is far away from the skin side;

the conveying unit is used for adsorbing the paper diaper composite semi-finished product in a negative pressure adsorption mode, conveying the paper diaper composite semi-finished product along the first conveying path, and enabling the skin side surface of the paper diaper composite semi-finished product to face downwards;

the folding adsorption unit and the folding adsorption unit are arranged up and down and are connected with the downstream side of the conveying unit, a conveying channel is formed between the folding adsorption unit and the folding unit, and the paper diaper composite semi-finished product is conveyed in the conveying channel;

the folding adsorption unit comprises a folding box body with a cavity structure, a plurality of folding adsorption holes are formed in two sides of the folding box body, which are perpendicular to a first conveying path, and a pair of elastic left and right waist pastes positioned outside edge lines outside a semi-finished product continuous body of the paper diaper body are gradually adsorbed and turned over by 180 degrees in a negative pressure adsorption mode through the folding adsorption holes and are folded on the skin side of the semi-finished product continuous body of the paper diaper body to form a semi-finished product of the paper diaper;

The wrapping unit comprises a pair of vacuum box groups arranged along a first conveying path, the vacuum box groups are provided with a group of conveying surfaces, one group of conveying surfaces are arranged downwards, and the vacuum box groups absorb the paper diaper composite semi-finished product/the paper diaper semi-finished product to be conveyed along the first conveying path.

2. The folding system of claim 1, wherein the folding unit further comprises a set of folding flaps disposed below the set of vacuum boxes;

the bag folded plate group comprises a first bag folded plate and a second bag folded plate, the first bag folded plate and the second bag folded plate are provided with profiling curved surfaces along the direction of a first conveying path, and a pair of elastic left and right waist pastes are arranged in the profiling curved surfaces of the first bag folded plate and the second bag folded plate and used for carrying out folding shaping on the pair of folded elastic left and right waist pastes.

3. The folding system of claim 1, wherein the folding adsorption unit further comprises an air distribution pipe, one end of the air distribution pipe is communicated with the inside of the folding box body and is communicated with the plurality of folding adsorption holes, and the other end of the air distribution pipe is connected with the adsorption device.

4. The folding system of claim 1, wherein the transfer unit comprises a first vacuum box, a first drive roller, a first driven roller, and a first conveyor belt, the first vacuum box being a cavity structure;

The first conveyor belt is circumferentially arranged outside the circumferences of the first driving roller and the first driven roller, and the first vacuum box is positioned inside the first conveyor belt;

the first vacuum box is provided with a first conveying surface, a plurality of first holes are formed in the first conveying surface, and holes corresponding to the first holes are formed in the first conveying belt.

5. The folding system of claim 1, wherein the second transfer path further comprises a first free roller on an upstream side of the transfer unit for guiding the transfer path of the pair of elastic left and right waist band continuous bodies and an application unit disposed on an upstream side of the cutter unit for applying the hot melt adhesive on the composite surface of the pair of elastic left and right waist band continuous bodies.

6. The folding system of claim 4, wherein the cutter unit comprises a cutter roll and a bottom roll, the cutter roll comprises a blade, the bottom roll comprises a bottom anvil, and when the blade of the cutter roll abuts the bottom anvil of the bottom roll, the pair of elastic left and right waist band continuous bodies are cut into a pair of elastic left and right waist bands of a predetermined length.

7. The folding system of claim 6, wherein the circumferential outer side of the bottom roller is provided with a plurality of suction holes; the central line of the bottom roller is perpendicular to the first conveying surface of the first vacuum box of the conveying unit, the bottom roller is cut off through adsorption holes, a pair of elastic left and right waist patches are conveyed and attached to two sides of the paper diaper body semi-finished product continuum conveyed on the first vacuum box of the conveying unit.

8. The folding system of claim 2, wherein the set of vacuum boxes comprises a second vacuum box and a third vacuum box arranged in parallel, the first folding flap being disposed below the second vacuum box, the second folding flap being disposed below the third vacuum box;

the second vacuum box and the third vacuum box are of hollow structures, the lower surface of the second vacuum box forms a second conveying surface, the lower surface of the third vacuum box forms a third conveying surface, a second hole is formed in the second conveying surface, a fourth hole is formed in the third conveying surface,

the second hole corresponds to an outer side edge line area of the semi-finished product continuous body of the paper diaper body, and the fourth hole corresponds to another outer side edge line area of the semi-finished product continuous body of the paper diaper body.

9. The folding system of claim 8, wherein a third hole is further formed in the second conveying surface, and a fifth hole is further formed in the third conveying surface, the third hole being located at a downstream side of the second vacuum box, and the fifth hole being located at a downstream side of the third vacuum box;

the third hole and the fifth hole respectively correspond to the positions of the left and right waist patches of the elasticity of the folded semi-finished paper diaper.

10. The folding system of claim 8, wherein the folding unit further comprises a set of drive rollers, a set of driven rollers, and a set of conveyor belts;

the driven roller group includes a second driven roller disposed at both ends of the second vacuum box along the first conveying path, and a third driven roller disposed at both ends of the third vacuum box along the first conveying path;

the conveyor belt group includes a second conveyor belt disposed circumferentially outward of the drive roller group and the second driven roller, and a third conveyor belt disposed circumferentially outward of the drive roller group and the third driven roller;

the second vacuum box is positioned on the inner side of the second conveyor belt, and the third vacuum box is positioned on the inner side of the third conveyor belt;

the second conveyor belt is provided with holes corresponding to the second holes and the third holes, and the third conveyor belt is provided with holes corresponding to the fourth holes and the fifth holes.

11. The wrapping system according to claim 10, wherein the wrapping unit further includes a roller group disposed on the first conveying path on a downstream side of the wrapping flap group, and a press roller group corresponding to the roller group;

The roller set comprises a first roller and a second roller, and the press roller set comprises a first press roller and a second press roller; a first opening is formed in the downstream side of the second conveying surface of the second vacuum box, and a second opening is formed in the downstream side of the third conveying surface of the third vacuum box;

the first roller is installed in the second vacuum box and embedded in the first opening; the second roller is arranged in the third vacuum box and embedded in the second opening;

the outer side of the circumference of the first roller passes through the first opening to be abutted against the first compression roller, and the outer side of the circumference of the second roller passes through the second opening to be abutted against the second compression roller.

12. The folding system of claim 11, wherein the folding unit further comprises an adjustment member comprising a connector, a pair of adjustment bars, and a pair of handles;

the second vacuum box and the third vacuum box are adjustably connected to the connecting piece, and the connecting piece is connected with the mounting base surface; one end of a pair of adjusting rods is respectively and adjustably connected with the second vacuum box and the third vacuum box, and the other end of the pair of adjusting rods is respectively connected with a pair of handles;

When the handle is rotated, the adjusting rod drives the second vacuum box and/or the third vacuum box to move along the direction perpendicular to the first conveying path.

13. The folding system according to claim 1, characterized in that the first conveying path further comprises a second free roller for guiding the transport path of the pant diaper body blank continuum/the pant diaper blank;

and the second free roller positioned on the downstream side of the folding unit turns the semi-finished diaper product positioned on the side face of the skin downwards into the semi-finished diaper product positioned on the side face of the skin upwards, and conveys the semi-finished diaper product to the downstream side.

14. A manufacturing method of an elastic left and right waist patch of a paper diaper is characterized by comprising the following steps:

elastic left and right waist paste treatment procedure: processing a pair of elastic left and right waist patch continuous bodies with magic hooks combined on one surface on a second conveying path, and conveying the elastic left and right waist patch continuous bodies to the first conveying path;

and (3) a paper diaper semi-finished product processing procedure: and processing the semi-finished product continuous body of the paper diaper body conveyed on the upstream side on the first conveying path to form a semi-finished product of the paper diaper.

15. The method for manufacturing the elastic left and right waist patches of the diaper according to claim 14, wherein:

Cutting a pair of elastic left and right waist patches with magic hooks combined on one surface into a pair of elastic left and right waist patches with preset lengths on a second conveying path, and conveying and attaching the elastic left and right waist patches to two sides of a semi-finished product continuous body of the paper diaper body on the first conveying path to form a paper diaper composite semi-finished product, wherein a part of the pair of elastic left and right waist patches is positioned at a position outside an edge line of the outer side of the semi-finished product continuous body of the paper diaper body, and the skin of the paper diaper composite semi-finished product faces downwards;

and on the first conveying path, gradually adsorbing and overturning the pair of elastic left and right waist pastes positioned at the part outside the edge line of the outer side of the semi-finished product continuous body of the paper diaper body by 180 degrees, and folding the elastic left and right waist pastes at the skin side of the semi-finished product continuous body of the paper diaper body to form the semi-finished product of the paper diaper.

16. The method for manufacturing the elastic left and right waist patches of the diaper according to claim 15, wherein:

and on the first conveying path, gradually adsorbing and overturning the pair of elastic left and right waist pastes positioned at the outer part of the edge line of the semi-finished product of the paper diaper body by 180 degrees in a negative pressure adsorption mode, and folding the elastic left and right waist pastes at the skin side of the semi-finished product of the paper diaper body to form a semi-finished product of the paper diaper.

17. The method for manufacturing the elastic left and right waist patches of the diaper according to claim 16, wherein:

the method also comprises the overturning procedure: and turning the semi-finished diaper product with the downward skin side into the semi-finished diaper product with the upward skin side, and conveying the semi-finished diaper product to the downstream side.

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