WO2023024182A1 - Appareil de fabrication de ceinture élastique - Google Patents

Appareil de fabrication de ceinture élastique Download PDF

Info

Publication number
WO2023024182A1
WO2023024182A1 PCT/CN2021/118109 CN2021118109W WO2023024182A1 WO 2023024182 A1 WO2023024182 A1 WO 2023024182A1 CN 2021118109 W CN2021118109 W CN 2021118109W WO 2023024182 A1 WO2023024182 A1 WO 2023024182A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
woven fabric
cutting part
elastic
line
Prior art date
Application number
PCT/CN2021/118109
Other languages
English (en)
Chinese (zh)
Inventor
林笛
黄雨昕
Original Assignee
泉州市汉威机械制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 泉州市汉威机械制造有限公司 filed Critical 泉州市汉威机械制造有限公司
Publication of WO2023024182A1 publication Critical patent/WO2023024182A1/fr

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15723—Partitioning batts; Cutting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15707—Mechanical treatment, e.g. notching, twisting, compressing, shaping
    • A61F13/15739—Sealing, e.g. involving cutting
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15764—Transferring, feeding or handling devices; Drives
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
    • A61F2013/15861—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding
    • A61F2013/15869—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for bonding with ultrasonic energy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
    • A61F2013/15934—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for making non-woven
    • A61F2013/15991—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing for making non-woven in making composite multi-layered product

Definitions

  • the invention relates to the field of disposable sanitary products, in particular to an elastic waistline manufacturing device.
  • the composite elastic non-woven fabric structure includes an elastic fabric layer and a non-woven fabric layer.
  • the non-woven fabric layer is integrated with the elastic fabric layer.
  • the manufacturing method of the composite elastic non-woven fabric includes: providing an elastic fabric layer; combining a non-woven fabric layer with the elastic fabric layer; heat pressing the non-woven fabric layer and the elastic fabric layer to make them flat; and cooling the non-woven fabric layer and the elastic fabric layer layer.
  • the present invention proposes an elastic waist manufacturing device, which solves the technical problem that there is no elastic waist manufacturing device that can achieve good ventilation and comfortable wearing in the field of disposable sanitary products.
  • an elastic waist manufacturing device including a frame and an elastic film unwinding mechanism arranged on the frame according to the assembly line, a slow driving roller, a fast driving roller, and a composite station , fastening device, intermediate driving roller, cutting device, tension buffer mechanism, output driving roller, the frame is located at the composite station with an upper non-woven fabric conveying mechanism and a lower non-woven fabric conveying mechanism, and the upper non-woven fabric conveying mechanism
  • the woven fabric conveying mechanism includes an upper nonwoven fabric unwinding mechanism, an upper nonwoven fabric buffering mechanism, an upper nonwoven fabric driving roller, and an upper nonwoven fabric rectifying mechanism
  • the lower nonwoven fabric conveying mechanism includes a lower nonwoven fabric unwinding mechanism , the lower non-woven fabric buffer mechanism, the lower non-woven fabric driving roller, and the lower non-woven fabric rectifying mechanism.
  • the fastening device is provided with a plurality of welding points, and each welding point forms a partition line, and the partition
  • the included angle between the projection of the line on the horizontal plane and the traveling direction of the assembly line is 25-35 degrees.
  • Both the fastening device and the cutting device are ultrasonic welding devices.
  • the cutting device includes a welding head, and the middle part of the welding head is provided with There is a penetrating part, the bonding part is arranged on the peripheral side of the penetrating part on the welding head, the heating roller mechanism is arranged on the front end of the cutting device on the frame, and the rear part of the cutting device is located on the frame There is a cooling roller mechanism at the end, and the cooling roller mechanism includes a fixed speed roller group and a variable speed roller group arranged at intervals. 50% to 150% change in speed.
  • the cutting device operates synchronously with the fastening device, and when the fastening device forms continuous partition lines with intervals on the sheet, the cutting device forms evenly distributed partition lines between two adjacent partition lines. Multiple cutting units.
  • a cutting area is formed between two adjacent separation lines, and the connection line of the lower ends of the plurality of cutting units in the same cutting area is a first connection line, and the first connection line is parallel to the separation line.
  • the distance between the first connecting line and the closest dividing line is 2.2-2.7mm.
  • the cutting device has a plurality of cutting parts for forming cutting units on the sheet, and the cutting parts include a long strip-shaped upper cutting part arranged along the vertical cutting, and a long upper cutting part arranged along the vertical cutting.
  • left cutting part and the right cutting part are cut vertically to form a long strip, and the length of the left cutting part and the right cutting part is shorter than that of the upper cutting part or the lower cutting part.
  • the upper cutting part, the left cutting part, the lower cutting part and the right cutting part of the same cutting part form a rhombus.
  • left cutting parts there are more than two left cutting parts, and more than two left cutting parts form an oblique first oblique line with the upper cutting part.
  • the bonding part and the penetration part have a smooth transition
  • the bonding part is provided with a heat-insulating paint layer
  • the heat-insulating paint layer is used to insulate the temperature of 30-60 °C
  • the penetration part The free end is sharp.
  • the beneficial effects of the present invention are: the setting of this solution can form an elastic waistline composed of upper non-woven fabric, elastic film and lower non-woven fabric. point sticking state, and form welding points, each welding point forms a plurality of interval division lines, and by being provided with a plurality of cutting parts, a plurality of cutting parts form a plurality of gaps between two adjacent division lines. cutting unit.
  • the cutting part includes an upper cutting part, a left cutting part, a lower cutting part and a right cutting part, so that corresponding structures can be formed on the elastic waist. And because the elastic film is in the transversely stretched state, it will make the elastic film form flat air holes at the upper cutting part, the lower cutting part, the left cutting part and the right cutting part.
  • Shape its size is often related to the vertical cutting length.
  • the vertical length of the upper cutting part and the lower cutting part is generally set to 1.5 ⁇ 5mm
  • the vertical length of the left cutting part and the right cutting part is generally set to 0.5 ⁇ 2mm
  • the upper cutting part or the lower cutting part and the left cutting part Or the ratio of the right cutting part is usually 2 to 3:1.
  • the forming method can be cutting or other means, and ultrasonic welding can be used to achieve penetration, which can form better of molding.
  • the upper non-woven fabric and the lower non-woven fabric can also be bonded, that is, welding holes are formed at the positions of the upper cutting part, the lower cutting part, the left cutting part and the right cutting part, so that the ventilation holes It will expand in this position, which will make the ventilation effect better.
  • the elastic film can be stretched effectively through the setting of the slow driving roller and the fast driving roller, and the stretching ratio can be adjusted by the speed ratio of the slow driving roller and the fast driving roller.
  • the fastening device is used for point bonding, and cutting is performed after point bonding, so as to effectively realize the formation of air holes on the elastic film.
  • the cutting is carried out in a specific way, so that the air holes on the elastic film It is stretched under the action of elasticity to form a flat shape, so that the breathable effect is good, and because it is cut in a stretched state, the stretching after cutting is basically in a relatively limit state, that is to say, after cutting
  • the maintenance state is basically equal to the state when wearing it. With such a setting, it is more convenient to set the parameters, so that the molding accuracy of the elastic waistline is higher and the molding effect is better.
  • each cutting unit has two left cutting parts and two right cutting parts, and the ventilation holes at the upper cutting part, lower cutting part, left cutting part and right cutting part form a better ventilation structure.
  • the setting of the first oblique line and the second oblique line can form a better arrangement, realize better arrangement of the cutting units, and thus realize effective ventilation.
  • the partition line is inclined, which can form a better distribution effect. When stretching horizontally, through such oblique restriction, better stability can be achieved. Through the parallelism of the first connecting line and the partitioning line, each air hole can exhibit a better stretch state. Such an arrangement can effectively control the stretching of each vent hole.
  • the included angle between the partition line and the horizontal plane is 25-35 degrees, and the distance between the first connecting line and the closest partition line is 2.2-2.7 mm.
  • Such numerical setting is a preferable range , a reasonable interval distribution can be formed.
  • the upper cutting part, the left cutting part, the lower cutting part and the right cutting part of a cutting unit form a rhombus, which is also for realizing effective distribution.
  • the upper non-woven fabric and the lower non-woven fabric are non-woven fabric materials, which can achieve better ventilation effect and have good elastic expansion and contraction performance in conjunction with the upper elastic film. Since it is a disposable hygienic product, its life expectancy is not high, and the destructive operation of cutting the elastic film will not cause a bad situation.
  • the setting of the heating roller mechanism and the cooling roller mechanism aims to preheat the elastic film before cutting, so that the efficiency of ultrasonic welding can be higher, and the effect of penetration and bonding can be better. Then cooling is carried out, so that the bonding portion formed by the upper non-woven fabric and the lower non-woven fabric realizes better combination, is not easy to be separated, and the air-permeable through-hole can also maintain a better structure.
  • the elastic membrane can be basically restored to its original state, and the influence on the elastic membrane can be reduced.
  • effective clamping stability can be formed, and the sudden stretching of the elastic film after cutting can be avoided.
  • the heating roller mechanism and the cooling roller mechanism should be installed as close as possible to the cutting device, so that the elastic film will not have a large change in elasticity after being cut, making the cutting more stable and the cutting position more accurate.
  • the cooling roller mechanism includes a fixed speed roller group and a variable speed roller group arranged at intervals, the fixed speed roller group and the heating roller mechanism run synchronously, and the speed variable roller group operates at 50% to 50% of the speed of the fixed speed roller group. 150% change.
  • the purpose of this setting is to effectively reduce the incomplete cutting during cutting. Through differential conveying, the elastic film will be stretched, so that the air holes will be stretched again, thereby reducing the contact between the elastic film and the upper non-woven fabric. Or the situation where the non-woven fabric is sticky.
  • the speed change of the variable-speed roller group is periodic, so that the frequency of its conveying material is basically consistent with that of the fixed-speed roller group. The deviation generated here will be eliminated by the tension buffer mechanism and the output drive roller mechanism.
  • Fig. 1 is the structural representation of the elastic waistline that the present invention produces
  • Fig. 2 is a cross-sectional view at A-A in Fig. 1;
  • Fig. 3 is a display state diagram of Fig. 1;
  • Fig. 4 is the reference figure of technique of the present invention.
  • Fig. 5 is a structural representation of the present invention.
  • Fig. 6 is a structural schematic diagram of the cooperation of the heating roller mechanism, the cooling roller mechanism and the cutting device;
  • Fig. 7 is a structural schematic diagram of the welding head.
  • the present embodiment provides an elastic waist, including an upper non-woven fabric 1, a lower non-woven fabric 2, and an elastic film 3 sandwiched between the upper non-woven fabric 1 and the lower non-woven fabric 2,
  • the upper non-woven fabric 1 and the lower non-woven fabric 2 are air-permeable sheets, and non-woven fabric materials are selected in this scheme.
  • the upper non-woven fabric 1, the elastic film 3, and the lower non-woven fabric 2 are fixed through a plurality of connecting parts to form fastening points 4, and each fastening point 4 is distributed to form a plurality of partition lines F, and each partition line F is along the Horizontally spaced, two adjacent partition lines F form a partition area 5, there is at least one cutting unit 6 in the adjacent two partition lines, and each cutting unit 6 includes a long strip-shaped upper cutting portion arranged along the vertical cutting 61.
  • Right cutting part 64, described left cutting part 63, right cutting part 64 are arranged to form elongated state along vertical cutting, and the length of described left cutting part 63, right cutting part 64 is less than upper cutting part 61 or lower cutting part 62
  • the upper cutting part 61, the lower cutting part 62, the left cutting part 63 and the right cutting part 64 respectively cut the upper non-woven fabric 1, the lower non-woven fabric 2 and the elastic film 3, and when the upper non-woven fabric 1 and the lower non-woven fabric 2 is in a flat state, and the elastic film 3 is in a transversely stretched state.
  • the ventilation holes formed by the left cutting portion 63 and the right cutting portion 64 are respectively located between the ventilation holes formed by the upper cutting portion 61 and the lower cutting portion 62 .
  • There are more than two left cutting portions 63 in this solution, there are two.
  • the two left cutting portions 63 and the upper cutting portion 61 form a first oblique line D in an oblique direction.
  • the first oblique line D is parallel to the second oblique line E, which results in a better, more uniform shape.
  • the connecting line connecting the lower ends of the lower cutting portions 62 of two adjacent cutting units 6 is a first connecting line G, and the first connecting line G is parallel to each partition line F.
  • the included angle C between the partition line F and the horizontal plane is 25-35 degrees.
  • the distance between the first connecting line G and the closest dividing line F is 2.2-2.7 mm.
  • the upper cutting portion 61 , the left cutting portion 63 , the lower cutting portion 62 and the right cutting portion 64 of one cutting unit 6 form a rhombus H.
  • the length of the fastening point 4 along the longitudinal direction is greater than the length along the transverse direction, the ratio is 2-3:1.
  • the upper cutting portion 61, the lower cutting portion 62, the left cutting portion 63, and the right cutting portion 64 are formed by ultrasonic welding, air holes are formed at the elastic film, and the upper non-woven fabric and the lower The non-woven fabric forms a bond, and a ventilating through hole 8 is formed at the bond site.
  • the upper cutting portion 61 , the lower cutting portion 62 , the left cutting portion 63 and the right cutting portion 64 may also be formed by cutting with a blade.
  • the stretch ratio of the elastic film is generally 1.5-4, of course, it can also be larger or smaller, and the thickness of the elastic film is selected between 0.2-1mm.
  • a method for manufacturing an elastic waistline based on the same inventive concept comprising the following steps:
  • the first step is to unwind the elastic film, pass through the slow driving roller and then pass through the fast driving roller to form a differential conveying, so as to realize the stretching of the elastic film;
  • the upper non-woven fabric and the lower non-woven fabric are combined on the upper surface and the lower surface of the elastic film to form a sheet, and then fixed by a fastening device, so that the upper non-woven fabric, the elastic film and the lower non-woven fabric are connected.
  • Fastening points are formed, each fastening point is distributed to form a plurality of partition lines, and each partition line is arranged at intervals along the transverse direction;
  • the third step is to achieve smoothness through the middle driving roller rolling
  • the fourth step is to use a cutting device to cut the sheet, so that there is at least one cutting unit in the two partition lines on the adjacent sheet, and each cutting unit includes a long strip-shaped upper cutting portion arranged along the vertical cutting, The elongated lower cutting part arranged vertically, the left cutting part positioned along the vertical cutting on the left side of the upper cutting part, the right cutting part arranged along the vertical cutting on the right side of the lower cutting part, the left The cutting part and the right cutting part are arranged along the vertical cutting to form a strip state. The length of the left cutting part and the right cutting part is smaller than the upper cutting part or the lower cutting part.
  • the upper cutting part, the lower cutting part, the left cutting part, The right cutting part cuts the upper non-woven fabric, the lower non-woven fabric and the elastic film respectively.
  • the elastic film is located at the upper cutting part, the lower cutting part, the left cutting part and the right cutting part under the action of transverse tension to form a breathable
  • the width of each ventilation hole in the horizontal direction is greater than the length in the vertical direction, forming a flat shape;
  • the sheet passes through the tension buffer mechanism, and then is driven out by the output drive roller.
  • present embodiment also provides a kind of elastic waistline manufacturing device, comprises frame 1 and is arranged on frame according to the elastic film unwinding mechanism 91 of assembly line, slow speed driving roller 92, fast driving roller 93, composite station 94.
  • Fastening device 95, intermediate driving roller 96, cutting device 97, tension buffer mechanism 98, output driving roller 99, the frame is located at the composite station 94 and connected to the upper non-woven fabric conveying mechanism and the lower non-woven fabric
  • the conveying mechanism can realize the compounding of the upper non-woven fabric, the elastic film and the lower non-woven fabric.
  • the upper non-woven fabric conveying mechanism includes an upper non-woven fabric unwinding mechanism 910, an upper non-woven fabric buffer mechanism 911, and an upper non-woven fabric driving mechanism.
  • the roller 912, the upper non-woven fabric correction mechanism 913, the lower non-woven fabric conveying mechanism includes the lower non-woven fabric unwinding mechanism 914, the lower non-woven fabric buffer mechanism 915, the lower non-woven fabric driving roller 916, and the lower non-woven fabric correction mechanism 917 .
  • Both the fastening device 95 and the cutting device 97 need to have a specific arrangement of points.
  • Both the fastening device 95 and the cutting device 97 are ultrasonic welding devices, wherein the cutting device 97 can form a plurality of cutting units on the sheet at one time, as shown in FIG. 3 , between two adjacent partition lines
  • Multiple cutting units in the cutting area form the most basic welding unit, and the distribution of welding heads can also refer to Figure 3.
  • Multiple cutting units in the cutting area between two adjacent division lines form a One standard cutting unit, multiple standard cutting units are evenly distributed on the roll surface of the upper cutting roll.
  • the upper cutting portion 61, the lower cutting portion 62, the left cutting portion 63, and the right cutting portion 64 of the cutting unit 6 are the upper cutting portion, the lower cutting portion, the left cutting portion, and the right cutting portion of the cutting device 97.
  • the representation of the welding head distribution can be better shown in Figure 3.
  • the cutting device 97 includes a welding head 974, the middle of the welding head 974 is provided with a penetration portion 9741, and the welding head 974 is provided with an adhesive portion 9742 on the peripheral side of the penetration portion 9741 , the bonding part 9742 and the penetrating part 9741 have a smooth transition, the bonding part 9742 is provided with a heat-insulating paint layer 9743, and the heat-insulating paint layer 9743 is used to insulate the temperature of 30-60 °C, and the temperature is passed through Insulation can make the forming efficiency of this part deteriorate during ultrasonic vibration, so that penetration cannot be formed, but adhesion will be formed. Moreover, due to the smooth transition, which is actually an arc transition, there will be no abutting fit, and no penetration will be formed during ultrasonic welding. The free end of the penetrating portion 9741 is sharp.
  • the front end of the cutting device 97 is provided with a heating roller mechanism 971 on the frame, and the cooling roller mechanism is provided at the rear end of the cutting device 97 on the frame.
  • the cooling roller mechanism includes a fixed speed roller group 972 and a variable speed roller group 973 arranged at intervals.
  • the fixed speed roller group 972 runs synchronously with the heating roller mechanism 971. 50% ⁇ 150% change.
  • the heating roller mechanism 971, the fixed-speed roller group 972 and the variable-speed roller group 973 in this program are all conventional structures with two upper and lower rollers, which are conventional technical means. Purpose.
  • the arrangement of this scheme can form an elastic waistline composed of upper non-woven fabric, elastic film and lower non-woven fabric, and its compounding is carried out by a fastening device, forming a point-bonded state on the elastic waistline, and forming welding points, each welding point A plurality of interval division lines are formed, and by providing a plurality of cutting parts, the plurality of cutting parts form a plurality of cutting units between two adjacent division lines.
  • the cutting part includes an upper cutting part, a left cutting part, a lower cutting part and a right cutting part, so that corresponding structures can be formed on the elastic waist. And because the elastic film is in the transversely stretched state, it will make the elastic film form flat air holes at the upper cutting part, the lower cutting part, the left cutting part and the right cutting part.
  • Shape its size is often related to the vertical cutting length.
  • the vertical length of the upper cutting part and the lower cutting part is generally set to 1.5 ⁇ 5mm
  • the vertical length of the left cutting part and the right cutting part is generally set to 0.5 ⁇ 2mm
  • the upper cutting part or the lower cutting part and the left cutting part Or the ratio of the right cutting part is usually 2 to 3:1.
  • the width of the upper cutting part, the lower cutting part, the left cutting part and the right cutting part the smaller the better, the forming method can be cutting or other means, using ultrasonic welding, and achieving penetration, can form better of molding.
  • the upper non-woven fabric and the lower non-woven fabric can also be bonded, that is, welding holes are formed at the positions of the upper cutting part, the lower cutting part, the left cutting part and the right cutting part, so that the ventilation holes It will expand in this position, which will make the ventilation effect better.
  • the elastic film can be stretched effectively through the setting of the slow driving roller and the fast driving roller, and the stretching ratio can be adjusted by the speed ratio of the slow driving roller and the fast driving roller.
  • the fastening device is used for point bonding, and cutting is performed after point bonding, so as to effectively realize the formation of air holes on the elastic film.
  • the cutting is carried out in a specific way, so that the air holes on the elastic film It is stretched under the action of elasticity to form a flat shape, so that the breathable effect is good, and because it is cut in a stretched state, the stretching after cutting is basically in a relatively limit state, that is to say, after cutting
  • the maintenance state is basically equal to the state when wearing it. With such a setting, it is more convenient to set the parameters, so that the molding accuracy of the elastic waistline is higher and the molding effect is better.
  • each cutting unit has two left cutting parts and two right cutting parts, and the ventilation holes at the upper cutting part, lower cutting part, left cutting part and right cutting part form a better ventilation structure.
  • the setting of the first oblique line and the second oblique line can form a better arrangement, realize better arrangement of the cutting units, and thus realize effective ventilation.
  • the partition line is inclined, which can form a better distribution effect. When stretching horizontally, through such oblique restriction, better stability can be achieved. Through the parallelism of the first connecting line and the partitioning line, each air hole can exhibit a better stretch state. Such setting can effectively control the stretching of each vent hole.
  • the included angle between the partition line and the horizontal plane is 25-35 degrees, and the distance between the first connecting line and the closest partition line is 2.2-2.7 mm.
  • Such numerical setting is a preferable range , a reasonable interval distribution can be formed.
  • the upper cutting part, the left cutting part, the lower cutting part and the right cutting part of a cutting unit form a rhombus, which is also for realizing effective distribution.
  • the upper non-woven fabric and the lower non-woven fabric are made of non-woven fabric materials, combined with the upper elastic film, so as to achieve better ventilation effect and have good elastic stretching performance. Since it is a disposable hygienic product, its life expectancy is not high, and the destructive operation of cutting the elastic film will not cause a bad situation.
  • the setting of the heating roller mechanism and the cooling roller mechanism aims to preheat the elastic film before cutting, so that the efficiency of ultrasonic welding can be higher, and the effect of penetration and bonding can be better. Then cooling is carried out, so that the bonding portion formed by the upper non-woven fabric and the lower non-woven fabric realizes better combination, is not easy to be separated, and the air-permeable through-hole can also maintain a better structure.
  • the elastic membrane can be basically restored to its original state, and the influence on the elastic membrane can be reduced.
  • effective clamping stability can be formed, and the sudden stretching of the elastic film after cutting can be avoided.
  • the heating roller mechanism and the cooling roller mechanism should be installed as close as possible to the cutting device, so that the elastic film will not have a large change in elasticity after being cut, making the cutting more stable and the cutting position more accurate.
  • the cooling roller mechanism includes a fixed speed roller group and a variable speed roller group arranged at intervals, the fixed speed roller group and the heating roller mechanism run synchronously, and the speed variable roller group operates at 50% to 50% of the speed of the fixed speed roller group. 150% change.
  • the purpose of this setting is to effectively reduce the incomplete cutting during cutting. Through differential conveying, the elastic film will be stretched, so that the air holes will be stretched again, thereby reducing the contact between the elastic film and the upper non-woven fabric. Or the situation where the non-woven fabric is sticky.
  • the speed change of the variable-speed roller group is periodic, so that the frequency of its conveying material is basically consistent with that of the fixed-speed roller group. The deviation generated here will be eliminated by the tension buffer mechanism and the output drive roller mechanism.
  • first and second are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as “first” and “second” may explicitly or implicitly include one or more of these features.
  • “plurality” means two or more, unless otherwise specifically defined.
  • the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

L'invention concerne un appareil de fabrication de ceinture élastique, comprenant une crémaillère (1), et un mécanisme de déroulement de film élastique (91), un rouleau d'entraînement lent (92), un rouleau d'entraînement rapide (93), une station composite (94), un dispositif de fixation (95), un rouleau d'entraînement intermédiaire (96), un dispositif de coupe (97), un mécanisme d'amortissement de tension (98) et un rouleau d'entraînement de sortie (99) disposé sur la crémaillère (1) le long d'une ligne d'assemblage. Un mécanisme de transport de tissu non tissé supérieur et un mécanisme de transport de tissu non tissé inférieur sont prévus au niveau de la station composite (94) sur la crémaillère (1). Une pluralité de positions de point de soudage sont disposées sur le dispositif de fixation (95). Une ligne de séparation (F) est formée par les positions de point de soudage. Un angle inclus (C) entre la projection de la ligne de séparation (F) sur le plan horizontal et la direction de cap de la ligne d'assemblage est de 25 à 35 degrés. Une pluralité de parties de coupe pour former des unités de coupe sur un matériau en feuille sont disposées sur le dispositif de coupe (97). La présente invention résout le problème technique dans le domaine des produits hygiéniques jetables existants qu'il n'y a pas de dispositif de fabrication de ceinture élastique qui peut atteindre une bonne perméabilité à l'air et un bon confort.
PCT/CN2021/118109 2021-08-25 2021-09-14 Appareil de fabrication de ceinture élastique WO2023024182A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110980779.8 2021-08-25
CN202110980779.8A CN113662751B (zh) 2021-08-25 2021-08-25 一种弹性腰围制造装置

Publications (1)

Publication Number Publication Date
WO2023024182A1 true WO2023024182A1 (fr) 2023-03-02

Family

ID=78546080

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/118109 WO2023024182A1 (fr) 2021-08-25 2021-09-14 Appareil de fabrication de ceinture élastique

Country Status (2)

Country Link
CN (1) CN113662751B (fr)
WO (1) WO2023024182A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113715459B (zh) * 2021-08-25 2022-08-16 泉州市汉威机械制造有限公司 一种弹性片材制造装置
CN114404146A (zh) * 2022-01-20 2022-04-29 爹地宝贝股份有限公司 一种卫生裤及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101511579A (zh) * 2006-08-31 2009-08-19 金伯利-克拉克环球有限公司 包含有孔弹性膜的非织造复合材料
JP2009240804A (ja) * 2009-07-17 2009-10-22 Daio Paper Corp パンツ型紙おむつの製造方法
CN103635167A (zh) * 2011-06-30 2014-03-12 Sca卫生用品公司 弹性层合件的形成方法
CN110868976A (zh) * 2017-09-27 2020-03-06 大王制纸株式会社 伸缩部件和具有该伸缩部件的一次性穿着物品
CN111823684A (zh) * 2019-04-15 2020-10-27 佛山市甘澍弹性材料科技有限公司 一种纵向弹性复合无纺布的生产装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016121981A1 (fr) * 2015-01-30 2016-08-04 大王製紙株式会社 Procédé de production de feuille étirable
BR112017016325B1 (pt) * 2015-01-30 2023-02-28 Daio Paper Corporation Artigo absorvente e método de fabricação
IT201700119053A1 (it) * 2017-10-20 2019-04-20 Fameccanica Data Spa Procedimento e apparecchio per produrre un nastro traspirante e relativo nastro
JP7282587B2 (ja) * 2019-04-26 2023-05-29 ユニ・チャーム株式会社 吸収性物品、及び、不織布積層体
CN113069276B (zh) * 2021-03-30 2022-05-13 福建省明辉机械制造有限公司 一种成裤弹力腰围成型设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101511579A (zh) * 2006-08-31 2009-08-19 金伯利-克拉克环球有限公司 包含有孔弹性膜的非织造复合材料
JP2009240804A (ja) * 2009-07-17 2009-10-22 Daio Paper Corp パンツ型紙おむつの製造方法
CN103635167A (zh) * 2011-06-30 2014-03-12 Sca卫生用品公司 弹性层合件的形成方法
CN110868976A (zh) * 2017-09-27 2020-03-06 大王制纸株式会社 伸缩部件和具有该伸缩部件的一次性穿着物品
CN111823684A (zh) * 2019-04-15 2020-10-27 佛山市甘澍弹性材料科技有限公司 一种纵向弹性复合无纺布的生产装置

Also Published As

Publication number Publication date
CN113662751A (zh) 2021-11-19
CN113662751B (zh) 2022-08-16

Similar Documents

Publication Publication Date Title
WO2023024182A1 (fr) Appareil de fabrication de ceinture élastique
WO2023024184A1 (fr) Tissu non tissé à ceinture élastique et son procédé de production
WO2019150802A1 (fr) Méthode de production de feuille composite élastique, feuille composite élastique et article portable jetable utilisant ladite feuille composite élastique
US11266543B2 (en) Methods and apparatuses for assembling elastic laminates with different bond densities for absorbent articles
US7704901B2 (en) Method for producing a laminate material web having elastic and non-elastic regions
JP4210663B2 (ja) フリース複合材料を製造するための方法
US4675016A (en) Method for adhering curved tensioned elastic strips to a gatherable base material and the article produced
US7834236B2 (en) Multilayer web with extensible and inextensible regions and methods of making same
US20060062963A1 (en) Composite elastic web
US20050101216A1 (en) Composite elastic web
TW201219019A (en) Method for manufacturing composite for continuous sheet used in absorbent articles, manufacturing apparatus, and method for manufacturing absorbent article
CN102490358B (zh) 超声波压合喷水带的生产方法及设备
ATE526925T1 (de) Vlies-elastomerlaminat mit verbesserter bindung zwischen elastomer und vliesstoff
WO2023024183A1 (fr) Feuille élastique et procédé de fabrication associé
WO2022183692A1 (fr) Non-tissé pour ceinture élastique d'un nouveau type nouveau et son procédé de formation
JP2014108152A (ja) 伸縮性シートの製造装置及び製造方法
CN111886127B (zh) 伸缩片材、使用该伸缩片材的一次性穿戴物品及其制造方法
RU2018111285A (ru) Способ производства эластичного слоистого метериала и ламинированный эластичный продукт
WO2023024180A1 (fr) Dispositif de fabrication de feuille élastique
JP4391400B2 (ja) 複合材料
CN213190609U (zh) 一种透气性弹性膜腰围
CN114013086A (zh) 冷压延展机构、冷压装置及冷压延展方法
CN114633527A (zh) 一种具有四面弹性的复合无纺布及其制作方法
CN216400759U (zh) 一种透气性弹性无纺布
CN111973346A (zh) 一种纸尿裤的减压腰围及其制作工艺

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21954704

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21954704

Country of ref document: EP

Kind code of ref document: A1