CN218842619U

CN218842619U - Equipment for manufacturing single-elastic non-woven fabric through multistage stretching technology

Info

Publication number: CN218842619U
Application number: CN202222153644.7U
Authority: CN
Inventors: 姚选峰; 郑江
Original assignee: Guangdong Yizhou Xuntai New Material Technology Co ltd
Current assignee: Guangdong Yizhou Xuntai New Material Technology Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2023-04-11
Anticipated expiration: 2032-08-16

Abstract

A device for manufacturing single-elastic non-woven fabric through a multistage stretching technology comprises a rolling mill, a stretching device and a winding machine; the stretching device comprises an oven and a plurality of groups of drafting roller sets which are sequentially arranged, the groups of drafting roller sets are arranged in the oven, and each group of drafting roller set comprises a first drafting roller and a second drafting roller which are arranged up and down; each first drawing roller is provided with a buffer mechanism for assisting the first drawing roller to elastically move up and down; the longitudinal multi-stage stretching of the non-woven fabric is realized by making the rotating speed of the first drawing roller of the first group greater than the rotating speed of the roller of the rolling mill, the rotating speed of the second drawing roller greater than the rotating speed of the first drawing roller in the same group, and the rotating speed of the first drawing roller of the next group greater than the rotating speed of the second drawing roller of the previous group in different groups, and the non-woven fabric fibers are heated by the oven to reduce the longitudinal elongation of the non-woven fabric. By installing the buffer mechanism on the first drafting roller, the possibility of slippage and breakage of the non-woven fabric fiber is reduced.

Description

Equipment for manufacturing single-elastic non-woven fabric through multistage stretching technology

Technical Field

The utility model belongs to the technical field of the technique of non-woven fabrics production facility and specifically relates to an equipment of single bullet non-woven fabrics is made through multistage tensile technique.

Background

Along with the improvement of living standard, the requirements of people on the use comfort and quality of disposable sanitary products are higher and higher. Non-woven fabrics as the materials of disposable sanitary articles are generally formed by hot rolling and shaping after filament lapping, wherein, the filament still has larger transverse elongation and longitudinal elongation after hot rolling and shaping by drafting, stretching, lapping, thus causing the problems of poor wear resistance, easy hair falling, low strength and the like of the non-woven fabrics. In order to solve the problems, a plurality of active drafting rollers are adopted to draw the non-woven fabric again after hot rolling, the unidirectional elongation is reduced, and the high-strength single-elastic non-woven fabric is obtained. In addition, the filament bundle actually slips on the surface of the drawing roller, which also results in a reduction in the drawing effect.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the utility model aims to provide an equipment of single bullet non-woven fabrics is made through multistage tensile technique.

In order to achieve the purpose, the utility model provides a scheme is an equipment for manufacturing single-elastic non-woven fabric through multistage drawing technology, including rolling mill, stretching device and rolling machine that arrange in proper order, its the stretching device includes oven and a plurality of groups of draft roller set that arrange in proper order, a plurality of groups of draft roller set arrange in the oven, and, every group of draft roller set includes first draft roller and second draft roller that arrange from top to bottom; the non-woven fabric sequentially passes through the rolling mill and the plurality of groups of the drafting roller sets and then is conveyed to the winding machine, wherein the non-woven fabric is sequentially wound around a first drafting roller and a second drafting roller in the drafting roller sets; the roller rotating speed of the rolling mill is less than that of the first drawing roller of the first group; in the same group, the rotating speed of the second drawing roller is greater than that of the first drawing roller; in different groups, the rotating speed of the second drafting roller of the previous group is less than that of the first drafting roller of the next group; each first drawing roller is provided with a buffer mechanism for assisting the first drawing roller to elastically move up and down; each second drawing roller is provided with a lifting mechanism for driving the second drawing roller to perform lifting adjustment.

Further, the buffer mechanism comprises a buffer spring, a first guide rod, a first shaft sleeve and a fixed plate, wherein the fixed plate is fixedly connected to the oven; one end of the first guide rod is fixedly connected to the first shaft sleeve, and the first guide rod is vertically in sliding fit with the fixing plate; the buffer spring is sleeved on the first guide rod, and two ends of the buffer spring are respectively and fixedly connected to the first shaft sleeve and the fixing plate; and the rotating shaft of the first drafting roller is connected with the first shaft sleeve.

Further, the lifting mechanism comprises a lifting driving device, a second shaft sleeve, a lifting platform and a second guide rod, wherein the second shaft sleeve is fixed on the lifting platform, and a rotating shaft of the second drawing roller is connected to the second shaft sleeve; the lifting platform is vertically matched with the second guide rod in a sliding mode, and the driving end of the lifting driving device is connected to the lifting platform to drive the lifting platform to be adjusted up and down.

Furthermore, each first drafting roller and each second drafting roller are provided with a variable-frequency speed regulating motor.

Furthermore, a plurality of uniformly distributed ventilation openings are preset in the top of the oven, the top of the oven is connected with a ventilation pipe and a hot air blower, and an air outlet of the hot air blower is communicated with an inlet of the ventilation pipe; the outlets of the plurality of ventilation openings are communicated with the ventilation pipe.

Furthermore, a plurality of wind isolation plates are preset at the outlet of the ventilation pipe, the outlet of the ventilation pipe is separated by the plurality of wind isolation plates to form a plurality of ventilation channels, and the plurality of ventilation channels are respectively communicated with the plurality of ventilation openings.

The utility model has the advantages that: the rotation speed of a first group of first drafting rollers is higher than that of rollers of a rolling mill, the rotation speed of a second drafting roller is higher than that of the first drafting roller in the same group, and the rotation speed of the first drafting roller in the next group is higher than that of the second drafting roller in the previous group in different groups, so that the longitudinal multi-stage stretching of the non-woven fabric by a stretching device after hot rolling and shaping is realized, and the non-woven fabric fibers are heated by an oven so as to further improve the stretching multiple of the non-woven fabric fibers, reduce the longitudinal elongation of the non-woven fabric, and improve the longitudinal stability, structural strength and bulkiness of the non-woven fabric; through at first draft roller installation buffer gear for the adaptable not second draft roller and the first draft roller of different speeds of non-woven fabrics fibre, make non-woven fabrics fibre increase under the self-adaptation circumstances with the frictional force between the first draft roller and the frictional force between the second draft roller, reduce the non-woven fabrics fibre and skid and the possibility of breaking.

Drawings

Fig. 1 is a schematic diagram of an apparatus.

Fig. 2 is a front view of the stretching device.

Fig. 3 is a side view of the stretching device.

The device comprises an oven 1, an air vent 11, a base 12, a first through hole 13, a second through hole 14, a drafting roller group 2, a first drafting roller 21, a second drafting roller 22, a rolling mill 3, a winding machine 4, a hot air machine 5, a ventilating pipe 6, a wind isolation plate 61, a ventilating duct 62, a first shaft sleeve 71, a first guide rod 72, a buffer spring 73, a fixing plate 74, a second shaft sleeve 81, a lifting table 82, a second guide rod 83 and a lifting driving device 84.

Detailed Description

To facilitate an understanding of the present invention, it is described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1, in the present embodiment, an apparatus for manufacturing a single-elastic nonwoven fabric by a multi-stage stretching technique includes a rolling mill 3, a stretching device, and a winder 4. The stretching device comprises an oven 1 and three groups of draft roller sets 2 which are sequentially arranged, wherein the three groups of draft roller sets 2 are arranged in the oven 1, and each group of draft roller set 2 comprises a first draft roller 21 and a second draft roller 22 which are arranged in a vertically staggered mode. The non-woven fabric sequentially passes through the rolling mill 3 and the three groups of drafting roller sets 2 and then is conveyed to the winding machine 4, wherein the non-woven fabric sequentially winds around the first drafting roller 21 and the second drafting roller 22 in the drafting roller sets 2. The three groups of drafting roller sets 2 are sequentially divided into a first group, a second group and a third group according to the conveying direction of the non-woven fabric. Each first drawing roller 21 and each second drawing roller 22 are provided with a variable frequency speed regulating motor.

In this embodiment, three groups of draft roller sets 2 are sequentially divided into a first group, a second group and a third group according to the transportation direction of the nonwoven fabric, and the rotation speed of the first draft roller 21 and the rotation speed of the second draft roller 22 of each group of draft roller sets 2 are set, specifically, the rotation speed of the first draft roller 21 of the first group is 40% to 50% greater than the rotation speed of the roll of the rolling mill 3; in the same group, the rotating speed of the second drafting roller 22 is 40-50% greater than that of the first drafting roller 21; in different groups, the rotating speed of the first drawing roller 21 of the next group is 40-50% greater than that of the second drawing roller 22 of the previous group. Through the aforesaid settlement for the non-woven fabrics is stretching multiple crescent in a draft roller set 2, realize the vertical multistage drawing of stretching device to the non-woven fabrics after hot rolling is stereotyped, and, heat the non-woven fabrics through oven 1 in order to further improve the stretching multiple to the non-woven fabrics, realize reducing the longitudinal elongation of non-woven fabrics, improve the longitudinal stability of non-woven fabrics, structural strength and fluffy degree, and simultaneously, remain the horizontal elongation of non-woven fabrics, make the non-woven fabrics have horizontal elasticity.

In this embodiment, the stretching device further comprises a base 12, wherein the oven 1, the lifting driving device 84 and the second guide rod 83 are fixedly connected to the base 12. The side edge of the oven 1 is preset with a first through hole 13 for the rotating shaft of the first drafting roller 21 to penetrate out and a second through hole 14 for the rotating shaft of the second drafting roller 22 to penetrate out.

Referring to fig. 2 or fig. 3, in the present embodiment, each first draft roller 21 is provided with a buffer mechanism for assisting the first draft roller 21 to elastically move up and down. The buffer mechanism comprises a buffer spring 73, a first guide rod, a first shaft sleeve 71 and a fixed plate 74, wherein the fixed plate 74 is fixedly connected to the side edge of the oven 1; the rotation shaft of the first draft roller 21 is connected to the first bushing 71. One end of the first guide rod is fixedly connected to the first boss 71, and the first guide rod is vertically slidably fitted to the fixed plate 74. The buffer spring 73 is sleeved on the first guide rod, wherein two ends of the buffer spring 73 are respectively and fixedly connected to the first shaft sleeve 71 and the fixing plate 74.

Referring to fig. 2 or fig. 3, in the present embodiment, each of the second draft rollers 22 is provided with a lifting mechanism for driving the second draft roller 22 to perform lifting adjustment. The lifting mechanism comprises a lifting driving device 84, a second shaft sleeve 81, a lifting platform 82 and a second guide rod 83, wherein the second shaft sleeve 81 is fixed on the lifting platform 82, and the rotating shaft of the second drawing roller 22 is connected with the second shaft sleeve 81; the elevating platform 82 is vertically slidably coupled to the second guide bar 83, wherein a driving end of the elevating driving device 84 is connected to the elevating platform 82 to drive the elevating platform 82 to be adjusted up and down.

In this embodiment, before production facility operation, through the lift adjustment of elevating system to second draft roller 22, realize the tension adjustment to the non-woven fabrics, avoid tension undersize or too big, simultaneously for stretching device is applicable to the non-woven fabrics of different thickness, carries out corresponding tension according to the non-woven fabrics thickness of difference and adjusts. During the operation of the production equipment, the speed of each first drawing roller 21 and the speed of each second drawing roller 22 are different from each other, wherein the first drawing roller 21 moves downward under the tension of the nonwoven fabric to reduce the distance between the first drawing roller 21 and the second drawing roller 22 and increase the contact surface of the nonwoven fabric on the first drawing roller 21. Because the tension of the non-woven fabric is influenced by the speed of the first drawing roller 21 and the speed of the second drawing roller 22, the non-woven fabric can adapt to the second drawing roller 22 and the first drawing roller 21 with different speeds, the friction force between the non-woven fabric and the first drawing roller 21 and the friction force between the non-woven fabric and the second drawing roller 22 are increased under the self-adaptive condition, the possibility of slipping and stretch-breaking of the non-woven fabric is reduced, and the non-woven fabric can be stably conveyed at a high speed.

In the embodiment, a plurality of uniformly distributed ventilation openings 11 are preset at the top of the oven 1, and the top of the oven 1 is connected with a ventilation pipe 6 and an air heater 5, wherein an air outlet of the air heater 5 is communicated with an inlet of the ventilation pipe 6; the outlets of the plurality of ventilation openings 11 communicate with the ventilation pipe 6. The outlet of the ventilation pipe 6 is preset with a plurality of air partition plates 61 which are arranged in sequence at equal intervals, the outlet of the ventilation pipe 6 is partitioned by the plurality of air partition plates 61 to form a plurality of ventilation channels 62, the ventilation channels 62 are respectively communicated with the ventilation openings 11, so that the air output of the ventilation openings 11 is the same, hot air uniformly flows into the oven 1 after passing through the ventilation channels 62 and the ventilation openings 11 in sequence, and uniform heating of the groups of the draft roller sets 2 is realized.

The above-described embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention in any way. Those skilled in the art can make many changes, modifications, and equivalents of the embodiments of the invention without departing from the scope of the invention. Therefore, the content of the technical scheme of the utility model, according to the equivalent change made by the idea of the utility model, should be covered in the protection scope of the utility model.

Claims

1. The utility model provides an equipment of single bullet non-woven fabrics is made through multistage drawing technique, including rolling mill (3), stretching device and rolling machine (4) that arrange in proper order, its stretching device is including oven (1) and a plurality of groups draft roller set (2) that arrange in proper order, its characterized in that: a plurality of groups of the drafting roller groups (2) are arranged in the oven (1), and each group of the drafting roller groups (2) comprises a first drafting roller (21) and a second drafting roller (22) which are arranged up and down; the non-woven fabric sequentially passes through the rolling mill (3) and the plurality of groups of the drafting roller sets (2) and then is conveyed to the winding machine (4), wherein the non-woven fabric sequentially winds the first drafting roller (21) and the second drafting roller (22) in the drafting roller sets (2); the roller rotating speed of the rolling mill (3) is less than the rotating speed of the first drawing roller (21) of the first group; in the same group, the rotating speed of the second drafting roller (22) is greater than that of the first drafting roller (21); in different groups, the rotating speed of the second drafting roller (22) of the previous group is less than that of the first drafting roller (21) of the next group; each first drawing roller (21) is provided with a buffer mechanism for assisting the first drawing roller (21) to elastically move up and down; each second drawing roller (22) is provided with a lifting mechanism for driving the second drawing roller (22) to perform lifting adjustment.

2. An apparatus for manufacturing a single-elastic non-woven fabric by a multi-stage drawing technique according to claim 1, wherein: the buffer mechanism comprises a buffer spring (73), a first guide rod (72), a first shaft sleeve (71) and a fixing plate (74), wherein the fixing plate (74) is fixedly connected to the oven (1); one end of the first guide rod (72) is fixedly connected to the first shaft sleeve (71), and the first guide rod (72) is vertically in sliding fit with the fixing plate (74); the buffer spring (73) is sleeved on the first guide rod (72), and two ends of the buffer spring (73) are respectively and fixedly connected to the first shaft sleeve (71) and the fixing plate (74); the rotating shaft of the first drafting roller (21) is connected to the first shaft sleeve (71).

3. An apparatus for manufacturing a single-elastic non-woven fabric by a multi-stage drawing technique according to claim 1, wherein: the lifting mechanism comprises a lifting driving device (84), a second shaft sleeve (81), a lifting platform (82) and a second guide rod (83), wherein the second shaft sleeve (81) is fixed on the lifting platform (82), and a rotating shaft of the second drafting roller (22) is connected to the second shaft sleeve (81); the lifting platform (82) is vertically in sliding fit with the second guide rod (83), wherein the driving end of the lifting driving device (84) is connected to the lifting platform (82) to drive the lifting platform (82) to be adjusted up and down.

4. An apparatus for manufacturing a single-elastic non-woven fabric by a multi-stage drawing technique according to claim 1, wherein: each first drafting roller (21) and each second drafting roller (22) are provided with a variable-frequency speed-regulating motor.

5. An apparatus for manufacturing a single-elastic non-woven fabric by a multi-stage drawing technique according to claim 1, wherein: a plurality of ventilation openings (11) which are uniformly distributed are preset at the top of the oven (1), the top of the oven (1) is connected with a ventilation pipe (6) and an air heater (5), and an air outlet of the air heater (5) is communicated with an inlet of the ventilation pipe (6); the outlets of the plurality of ventilation openings (11) are communicated with the ventilation pipe (6).

6. An apparatus for manufacturing a single-elastic non-woven fabric by a multi-stage drawing technique according to claim 5, wherein: a plurality of wind isolation plates (61) are preset at the outlet of the ventilation pipe (6), the outlet of the ventilation pipe (6) is separated by the wind isolation plates (61) to form a plurality of ventilation channels (62), and the ventilation channels (62) are respectively communicated with the ventilation openings (11).