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A conveying device and conveying unit technology, which is applied in the direction of absorbent pads, underwear, clothing, etc., can solve the problems that elastic waistlines cannot be conveyed without tension, and achieve the effect of simple structure and stable and reliable operation

Active Publication Date: 2019-11-12
HUANGSHAN FUTIAN MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above problems, the present invention provides a conveying device, which solves the problem that the existing device cannot realize elastic waistline tension-free conveying, and has a simple structure and stable and reliable operation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1, please refer to figure 1 ,

[0029] A conveying device 14 is used to convey a belt-shaped elastic sheet 101 stretched in the flow direction and stretchable in the flow direction from the upstream side 15 to the downstream side 16 of the conveying device 14 without tension, by a first pressure feeding unit 17 , The non-negative pressure conveying unit 18, the negative pressure conveying unit 19 and the second pressure conveying unit 20 are composed. The aforementioned belt-shaped elastic sheet is composed of an upper sheet, a lower sheet, and a plurality of elastic bodies placed between the upper and lower sheets.

[0030] Among them, the first pressing unit 17 is used to compress the elastic sheet 101 and prevent it from retracting from the tension-free side to the tensioned side, and it includes two first driving rollers 21 and first pressing rollers 22 that cooperate with each other. ; The elastic sheet 101 starts to transform from tension to no tension when it...

Embodiment 2

[0035] See figure 2 , A conveying device 14 for conveying the strip-shaped elastic sheet 101 from the upstream side 15 of the conveying device 14 through the arc cutting device 10, the waste suction device 11 and the waist attachment compound device 12 to the downstream side 16 without tension. Wherein, the arc cutting device 10 is arranged between the non-negative pressure conveying unit 18 and the negative pressure conveying unit 19. The negative pressure conveying unit 19 includes a first negative pressure unit and a second negative pressure unit.

[0036] The first negative pressure unit is used to receive the elastic sheet conveyed from the non-negative pressure conveying unit 18 and convey it to the downstream side of the conveying device. It is correspondingly arranged on the downstream side of the arc cutting device 10 and includes a third drive roller 27. The second conveyor belt 28 and the first vacuum box 29. The third driving roller 27 drives the second conveyor bel...

Embodiment 3

[0040] See image 3 , A conveying device 14 for taking the belt-shaped elastic sheet 101 from the upstream side 15 of the conveying device 14 to the downstream side 16 through the arc cutting device 10, the waste suction device 11, the waist sticking compound device 12 and the waist cutting device 13 Tension-free transport. The waist cutting device 13 is provided on the downstream side of the second negative pressure unit, and the negative pressure conveying unit 19 includes a first negative pressure unit, a second negative pressure unit, and a first negative pressure unit provided between the waist cutting device 13 and the second negative pressure unit. Three negative pressure units.

[0041] The third negative pressure unit is used to transport the arc-cut, waist-adhesive composite elastic sheet to the waist cutting station so that the continuous belt-shaped elastic sheet forms a discrete elastic sheet, which includes a sixth driving roller 36 and a first Four conveyor belts ...

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Abstract

The invention discloses a conveying apparatus moving band-shaped elastic sheet material capable of extending and stretching along a process direction from an upstream side of the conveying apparatus to a downstream side in a tension-free way. The conveying apparatus comprises a first pressing-sending unit pressing the elastic sheet material and preventing the same from retracting from the tension-free side toward a tension side, a non-negative pressure conveying unit receiving the elastic sheet material conveyed by the first pressing-sending unit, and a negative-pressure conveying unit arranged on the downstream of the non-negative pressure conveying unit. With an arrangement of a pair of the first pressing-sending unit and the non-negative pressure conveying unit having a speed difference from the first pressing-sending unit, conversion from tension to tension free can be achieved; a deficiency of failure of elastic waistline tension-free conveying in the prior art can be overcome; the conveying apparatus is simply structured, and has stable and reliable operation; an irregular or even locally-piled profile after retraction of the elastic sheet material after arc-cutting can be avoided; and a deficiency of waist paste falling-off with an action of retraction force of the elastic sheet material at a waist paste composite position can be prevented.

Description

Technical field [0001] The invention belongs to the field of sanitary product processing equipment, and particularly relates to a conveying device. Background technique [0002] With the development of society and the continuous improvement of people's living standards, disposable hygiene products are widely used. The current products with elastic waistline can be roughly divided into two types: diapers and pull-up pants. The existing diaper products usually add elastic parts between two layers of inelastic sheets and add Velcro waist stickers on the left and right sides of the diaper. The elastic parts of this product are often discontinuous from one side to the other or the number of elastic parts is limited, which leads to weak elasticity at the waist; while the existing stretch pants products have continuous elasticity in the transverse direction. Parts, but it is troublesome to wear. In view of this, our company has designed an absorbent article with excellent elasticity o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/15
CPCA61F13/15764
Inventor 平田更夫龚志龙谢飞夏楚华
Owner HUANGSHAN FUTIAN MACHINERY CO LTD