CN203700776U - Non-woven fabric volume recovery device - Google Patents
Non-woven fabric volume recovery device Download PDFInfo
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- CN203700776U CN203700776U CN201320878998.6U CN201320878998U CN203700776U CN 203700776 U CN203700776 U CN 203700776U CN 201320878998 U CN201320878998 U CN 201320878998U CN 203700776 U CN203700776 U CN 203700776U
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- nonwoven fabric
- hot blast
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- volume recovery
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 346
- 238000011084 recovery Methods 0.000 title claims abstract description 112
- 238000010438 heat treatment Methods 0.000 claims abstract description 56
- 238000007664 blowing Methods 0.000 claims abstract description 18
- 239000007921 spray Substances 0.000 description 44
- 238000005192 partition Methods 0.000 description 34
- 239000000835 fiber Substances 0.000 description 18
- 238000011144 upstream manufacturing Methods 0.000 description 18
- 239000000463 material Substances 0.000 description 15
- 230000000694 effects Effects 0.000 description 10
- 238000009792 diffusion process Methods 0.000 description 8
- 239000006096 absorbing agent Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 229920005992 thermoplastic resin Polymers 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 239000004831 Hot glue Substances 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Treatment Of Fiber Materials (AREA)
Abstract
The utility model provides a non-woven fabric volume recovery device which can be used for reducing the number of components of the non-woven fabric volume recovery device and miniaturizing the volume recovery device. The non-woven fabric volume recovery device is used for blowing and supplying hot air to a non-woven fabric so as to heat the non-woven fabric, so that the volume recovery of the non-woven fabric is realized. The non-woven fabric volume recovery device is characterized by comprising a supplying roller, a space and a heating mechanism, wherein the supplying roller is used for drawing out the non-woven fabric which is reeled to be shaped like a roll; the supplying roller is arranged at the space; the heating mechanism is used for blowing and supplying the hot air to the non-woven fabric the side part of which is exposed to the space.
Description
Technical field
The utility model relates to a kind of volume recovery device of nonwoven fabric.
Background technology
Conventionally, nonwoven fabric is wound into after making to web-like and takes care of with the form of nonwoven fabric roll, in other operations, nonwoven fabric is released and used from nonwoven fabric roll afterwards.In addition,, owing to nonwoven fabric being applied to tension force when the coiling nonwoven fabric, the nonwoven fabric being therefore wound is compressed and volume reduces on thickness direction.Therefore, a kind of such method has been proposed: by nonwoven heating, make the volume of nonwoven fabric recover (for example, with reference to patent documentation 1) by nonwoven fabric is blowed to hot blast.
Patent documentation 1: No. 2007-177364, TOHKEMY
Utility model content
The problem that utility model will solve
But, in above-mentioned patent documentation 1, in the housing being formed by upper surface, lower surface, four sides, by blowing hot blast to nonwoven fabric, the volume of nonwoven fabric is recovered.Therefore, the part number of generation device increases and installs the such problem of maximizing.
The utility model is made in view of the above-mentioned problems, and its object is the part number of the volume recovery device that reduces nonwoven fabric, and seeks the miniaturization of device.
For the scheme of dealing with problems
For reaching the volume recovery device that the main utility model of above-mentioned purpose is a kind of nonwoven fabric, its for nonwoven fabric is blowed to hot blast by nonwoven heating, thereby the volume of above-mentioned nonwoven fabric is recovered, it is characterized in that, the volume recovery device of this nonwoven fabric comprises: donor rollers, and it is for extracting the above-mentioned nonwoven fabric that is wound into web-like out; Space, it is provided with above-mentioned donor rollers; And heating arrangements, it blows hot blast for the above-mentioned nonwoven fabric that is exposed to above-mentioned space to sidepiece.
Adopt the volume recovery device of such nonwoven fabric, owing to not being provided with the partition member of the sidepiece for covering nonwoven fabric, therefore compare with the device that in the housing for example being formed with four sides by upper and lower surface, nonwoven fabric is blowed to hot blast, can reduce the part number of device, and, can seek the miniaturization of device on the width of nonwoven fabric.
According to the volume recovery device of above-mentioned nonwoven fabric, it is characterized in that, two faces that blowed the above-mentioned nonwoven fabric of hot blast by above-mentioned heating arrangements are exposed to above-mentioned space.
Adopt the volume recovery device of such nonwoven fabric, owing to not being provided with sidepiece for covering nonwoven fabric and the partition member of two faces, therefore can further reduce the part number of device, and, can seek the miniaturization of device on width and the thickness direction of nonwoven fabric.
According to the volume recovery device of above-mentioned nonwoven fabric, it is characterized in that, a face of a side among two faces of above-mentioned nonwoven fabric that blowed hot blast by above-mentioned heating arrangements, that blowed hot blast is exposed to above-mentioned space, and another face is separated member and covers.
Adopt the volume recovery device of such nonwoven fabric, owing to not being provided with sidepiece for covering nonwoven fabric and the partition member of a face, therefore can further reduce the part number of device, and, can seek the miniaturization of device on width and the thickness direction of nonwoven fabric.
According to the volume recovery device of above-mentioned nonwoven fabric, it is characterized in that, a face of a side among two faces of above-mentioned nonwoven fabric that blowed hot blast by above-mentioned heating arrangements, that blowed hot blast is separated member and covers, and another face is exposed to above-mentioned space.
Adopt the volume recovery device of such nonwoven fabric, owing to not being provided with the partition member of sidepiece for covering nonwoven fabric and another face, therefore can further reduce the part number of device, and, can seek the miniaturization of device on width and the thickness direction of nonwoven fabric.
According to the volume recovery device of above-mentioned nonwoven fabric, it is characterized in that, two faces that blowed the above-mentioned nonwoven fabric of hot blast by above-mentioned heating arrangements are separated member and cover.
Adopt the volume recovery device of such nonwoven fabric, owing to not being provided with the partition member of the sidepiece for covering nonwoven fabric, therefore can reduce the part number of device, and, can seek the miniaturization of device on the width of nonwoven fabric.
According to the volume recovery device of above-mentioned nonwoven fabric, it is characterized in that, the roller that the above-mentioned nonwoven fabric being drawn out of from above-mentioned donor rollers is opened among the relative pair of rolls in compartment of terrain by sky is reeled and carries, and above-mentioned heating arrangements for blowing hot blast between above-mentioned pair of rolls.
Adopt the volume recovery device of such nonwoven fabric, owing to can being also used as the surperficial member that covers nonwoven fabric for delivery of the roller of nonwoven fabric, therefore can further reduce the part number of device, and, can further seek the miniaturization of device.
According to the volume recovery device of above-mentioned nonwoven fabric, it is characterized in that, above-mentioned heating arrangements radially blows hot blast to being wound on above-mentioned nonwoven fabric in above-mentioned donor rollers along above-mentioned donor rollers.
Adopt the volume recovery device of such nonwoven fabric, can reduce the part number of device, and, can seek the miniaturization of device, and the nonwoven fabric that not only can be positioned to being wound in outermost all side positions among the nonwoven fabric of donor rollers heats, can also contraposition in the inner the nonwoven fabric of side heat, therefore, can improve the efficiency of heating surface.
The effect of utility model
Adopt the utility model, can reduce the part number of the volume recovery device of nonwoven fabric, and can seek the miniaturization of device.
Brief description of the drawings
Figure 1A is the stereogram of pet sheet material, and Figure 1B is the cutaway view of pet sheet material at the line BB place of Figure 1A.
Fig. 2 A is the cutaway view of the volume recovery device of the nonwoven fabric of the 1st embodiment, and Fig. 2 B is the side view on spray hot wind head directions X right side around.
Fig. 3 A to Fig. 3 C is the figure of the variation of the volume recovery device of the nonwoven fabric for the 1st embodiment is described.
Fig. 4 A is the cutaway view of the volume recovery device of the nonwoven fabric of the 2nd embodiment, and Fig. 4 B is the cutaway view of volume recovery device at the line BB place of Fig. 4 A.
Fig. 5 is the figure of the variation of the volume recovery device of the nonwoven fabric for the 2nd embodiment is described.
Fig. 6 A is the cutaway view of the volume recovery device of the nonwoven fabric of the 3rd embodiment, and Fig. 6 B is the cutaway view of the volume recovery device at the line BB place of Fig. 6 A.
Fig. 7 A is the cutaway view of the volume recovery device of the nonwoven fabric of the 4th embodiment, and Fig. 7 B is the cutaway view of the volume recovery device at the line BB place of Fig. 7 A.
Fig. 8 is the cutaway view of the volume recovery device of the nonwoven fabric of the 5th embodiment.
Fig. 9 is the cutaway view of the volume recovery device of the nonwoven fabric of the 6th embodiment.
Description of reference numerals
1, pet sheet material; 3, top layer sheet (nonwoven fabric); 3a, surface; 3b, the back side; 3c, sidepiece; 3t, slot part; 3p, teat; 3h, through hole; 4, absorber; 4c, absorbability core; 4t, cover sheet; 5, bottom chip; 10, volume recovery device; 11, donor rollers; 12, upstream side conveying roller; 13, downstream conveying roller; 14, heating arrangements; 15, warm-air supply source; 151, fan; 152, heater; 16, hot air duct; 17, spray hot wind head; 18, space; 20, partition member; 30, shell unit; 31, base component (partition member); 32, lid member (partition member); 33, jet; 41,42, pair of rolls.
Detailed description of the invention
According to the record of this description and accompanying drawing, content that at least can be clearly following.
Sheet material 1 for pet
Figure 1A is the stereogram of pet sheet material 1, and Figure 1B is the cutaway view of pet sheet material 1 at the line BB place of Figure 1A.Utilize the nonwoven fabric that the volume recovery device (aftermentioned) of nonwoven fabric of the present utility model recovered volume for example can be as the top layer sheet 3 of pet sheet material 1 etc.Pet can be laid on floor etc. with sheet material 1 and carry out the excreta for the treatment of animal, pet have with sheet material 1 the top layer sheet 3 of the liquid permeability of for example overlooking rectangular shaped, roughly the same shape non-liquid permeability bottom chip 5 and be clipped in the absorbefacient absorber 4 of liquid between two sheet materials 3,5.Between top layer sheet 3 and absorber 4, utilize each other hot-melt adhesive etc. to be joined together between absorber 4 and bottom chip 5, in addition, the outer peripheral edges 1e place that does not have absorber 4 pet with sheet material 1, utilizes hot-melt adhesive etc. to be joined together between top layer sheet 3 and bottom chip 5.
Absorber 4 for example can list such structure: utilize the sheet 4t that covers of the liquid permeabilities such as tissue sheet to cover by be scattered with the absorbability core 4c that superabsorbent polymer (so-called SAP) forms in the liquid-absorbent fibers such as paper pulp fiber the structure forming.In addition, bottom chip 5 for example can exemplify out the thin-film materials such as polyethylene (hereinafter referred to as PE), polypropylene (hereinafter referred to as PP) and polyethylene terephthalate (hereinafter referred to as PET).
Top layer sheet 3 can list such nonwoven fabric 3: as shown in Figure 1B, be alternately arranged with the slot part 3t of linearity and the teat 3p of linearity a face 3a broad ways, another face 3b is the shape of general planar.Such nonwoven fabric 3 can form by the processing (with reference to No. 2009-11179, TOHKEMY etc.) that blows of known air stream, can be by the fiber of the part in slot part 3t originally is laterally blown afloat its part of rousing into teat 3p is formed.In addition,, in order to increase the liquid permeability of top layer sheet 3, multiple through hole 3h that through-thickness runs through also can be set on slot part 3t.
The volume of nonwoven fabric 3 recovers
Conventionally, will after making, be wound into web-like with the nonwoven fabric 3 of top layer sheet 3 grades of sheet material 1 and take care of with the form of nonwoven fabric roll as above-mentioned pet, afterwards carry out product add man-hour by nonwoven fabric from the nonwoven fabric roll use of releasing.In addition,, in the time of coiling nonwoven fabric 3, in order to prevent that nonwoven fabric 3 is cranky or to seek densification of nonwoven fabric roll etc., and nonwoven fabric 3 is applied to tension force.Therefore, be wound into nonwoven fabric 3 after web-like compressed on thickness direction, the volume of nonwoven fabric 3 reduces.So the discharge opeing of nonwoven fabric 3, time fluidity, flexibility reduce.Therefore,, in the utility model, by nonwoven fabric 3 being blowed to hot blast and nonwoven fabric 3 being heated, the volume of nonwoven fabric 3 is recovered.Below, at length the volume recovery device of nonwoven fabric 3 is described.
In addition, can list as nonwoven fabric 3 of the present utility model the structure that such, surperficial 3a is as shown in Figure 1B concaveconvex shape.The average basis weight of the nonwoven fabric 3 shown in Figure 1B is for example 10(g/m
2)～200(g/m
2), the average basis weight of the central portion of teat 3p is for example 15(g/m
2)～250(g/m
2), the average basis weight of the bottom of slot part 3t is 3(g/m
2)～150(g/m
2).But being not limited to this, for example, can be both the nonwoven fabric that two faces are all the shape of general planar, can be also the nonwoven fabric that two faces are all concaveconvex shape.
In addition, the fiber that forms nonwoven fabric 3 of the present utility model is thermoplastic resin fibre, for example, can be also that core is the composite fibre of PET, the sheath core sheath structure that is PE; Or core is the composite fibre of PP, the sheath core sheath structure that is PE; Or the fiber of structure arranged side by side (サ イ De バ イ サ イ De Agencies makes); Or the individual fibers being formed by single thermoplastic resin.And nonwoven fabric 3 also can have crinkled fibre.Crinkled fibre refers to the fiber of indention shape, Ω shape, the shape of crispaturaing such as spiral-shaped.In addition, can list such nonwoven fabric as nonwoven fabric 3: the fibre length of fiber is for example in the scope of 20mm～100mm, and fiber number is for example 1.1dtex～8.8dtex.
The 1st embodiment
Fig. 2 A is the cutaway view (cutaway view taking the width of nonwoven fabric 3 as normal direction) of the volume recovery device 10 of the nonwoven fabric 3 of the 1st embodiment, and Fig. 2 B is the side view on spray hot wind head 17 directions X right side around.The volume recovery device 10 of the 1st embodiment comprises: donor rollers 11, and it is for extracting nonwoven fabric 3 out from the nonwoven fabric roll 3R that is wound into web-like; Upstream side conveying roller 12 and downstream conveying roller 13, they are for delivery of nonwoven fabric 3; Heating arrangements 14, it is for heating the nonwoven fabric 3 between upstream side conveying roller 12 and downstream conveying roller 13; And space 18, it is provided with donor rollers 11 etc.Donor rollers 11 supports this nonwoven fabric roll 3R can rotate the mode of nonwoven fabric roll 3R, using the axle of the width along nonwoven fabric 3 (with the continuous direction of nonwoven fabric 3 and the orthogonal direction of thickness direction) as rotating shaft, and utilize not shown drive source (servo motor etc.) to make this axle rotation, thereby nonwoven fabric 3 is extracted out from nonwoven fabric roll 3R.Equally, upstream side conveying roller 12 and downstream conveying roller 13 rotate the axle of the width along nonwoven fabric 3 as rotating shaft, thereby carry the nonwoven fabric 3 being drawn out of from donor rollers 11.
In addition, in the present embodiment, upstream side conveying roller 12 is made up of relative pair of rolls 12,12, and pair of rolls 12,12 clamps and carry nonwoven fabric 3.In addition, can also be between donor rollers 11 and upstream side conveying roller 12 setting example as tenslator, thereby carry nonwoven fabric 3 with the tension force of regulation.In addition, in the following description, the throughput direction of the nonwoven fabric 3 between upstream side conveying roller 12 and downstream conveying roller 13 is made as to directions X, the width of nonwoven fabric 3 is made as to Y-direction, will be made as above-below direction with directions X and the orthogonal direction of Y-direction.
Heating arrangements 14 has warm-air supply source 15, hot air duct 16, spray hot wind head 17.Warm-air supply source 15 has fan 151 and heater 152, and fan 151 sucks extraneous air, and will utilize the air after heater 152 heats to blow to hot air duct 16.In addition, the rotating speed of fan 151 is made as to the variable air quantity that can adjust hot blast better, or it is better that the temperature of heater 152 is made as to the variable temperature that can adjust hot blast.
Spray hot wind head 17 is the housing of rectangular shape roughly, is disposed at than nonwoven fabric 3 top sides' position.Be linked with the end of hot air duct 16 at the upper surface of spray hot wind head 17, be formed with the jet 17a for spraying hot blast in the side on the directions X right side of spray hot wind head 17.Thereby the hot blast blowing loophole 17a that Self-air-heating pipeline 16 is supplied to the inside of injector head 17 sprays towards the right side of directions X.In addition, as shown in Figure 2 A, by making the lower surface of spray hot wind head 17 more outstanding to the right side of directions X than the side on directions X right side, thereby the hot blast that blowing loophole 17a is ejected is easy to flow along directions X.In addition, as shown in Figure 2 B, preferred jet 17a is along the peristome of the slit-shaped of Y-direction extension and more than jet 17a length is in the Y direction made as to the width of nonwoven fabric 3.By like this, nonwoven fabric 3 can be heated in the whole region of width.In addition, be not limited to from the jet 17a of slit-shaped and spray hot blast, for example, can also be from open multiple small hole injection hot blasts that arrange compartment of terrain along Y-direction sky.
In the volume recovery device 10 of said structure, utilize the rotation of donor rollers 11 to be drawn out of the nonwoven fabric 3 coming by after upstream side conveying roller 12 from spinning yardage roll 3R, carry to the right from the left side of directions X.Now, nonwoven fabric 3 is transferred under the state not surrounded by any member.That is to say, both sides 3c on the surface of nonwoven fabric 3 (upper surface) 3a, the back side (lower surface) 3b, width is not exposed to by any member mulched ground and is provided with the space 18 of donor rollers 11 and be not provided with along under the state of the partition member extending with the thickness direction (in this case above-below direction) of the orthogonal nonwoven fabric 3 of the face of nonwoven fabric 3, carries nonwoven fabric 3.In the surperficial 3a side of the nonwoven fabric 3 being transferred in this wise, the jet 17a of Self-air-heating injector head 17 sprays hot blast towards the right side (downstream on the throughput direction of nonwoven fabric 3) of directions X.Therefore the hot blast that, blowing loophole 17a sprays contacts an edge directions X on one side and flows with the surperficial 3a of nonwoven fabric 3.Its result, nonwoven fabric 3 is heated, and the volume of nonwoven fabric 3 recovers.In addition, the nonwoven fabric 3 after volume recovery is carried to ensuing operation by downstream conveying roller 13.
Like this, in the volume recovery device 10 of the 1st embodiment, sidepiece 3c on two face 3a, 3b and the width of nonwoven fabric 3 is not exposed under the state in space 18 that is provided with donor rollers 11 by any member mulched ground, blows hot blast by heating arrangements 14 to nonwoven fabric 3.And, in the volume recovery device 10 of the 1st embodiment, be not provided with along the thickness direction (above-below direction) of nonwoven fabric 3 yet and extend and the partition member relative with the jet 17a of hot blast.Therefore, in the volume recovery device 10 of the 1st embodiment, compare with the device that blows hot blast to nonwoven fabric 3 in the housing for example being formed with four sides by upper and lower surface, owing to not being provided with the partition member that covers two face 3a, 3b of nonwoven fabric 3 and the partition member of sidepiece 3c, extends along the thickness direction of nonwoven fabric 3, therefore can reduce the part number of device, and, can on directions X, Y-direction and above-below direction, seek the miniaturization of device.Particularly, in the case of arranging the partition member extending along the thickness direction of nonwoven fabric 3, the peristome that can pass through for nonwoven fabric 3 need to be set in this partition member, cause the manufacture of device to become miscellaneous, and in the volume recovery device 10 of the 1st embodiment, due to the partition member extending along the thickness direction of nonwoven fabric 3 not being set, therefore make the manufacture of device become easy.
But, because nonwoven fabric 3 softens because of heating, therefore, when heated and be the time of delivery of nonwoven fabric 3 of high temperature when longer, due to tension force nonwoven fabric 3 being applied in order to carry, cause nonwoven fabric 3 to be easy to extend along throughput direction.In the time that nonwoven fabric 3 extends along throughput direction, cause the width variation of nonwoven fabric 3, volume recovery effects reduces.But in the volume recovery device 10 of the 1st embodiment, because the nonwoven fabric 3 to not covered by any member blows hot blast, the hot blast that therefore Self-air-heating injector head 17 sprays is easy to diffusion, the environment temperature of spray hot wind head 17 is easy to decline.Therefore, in the volume recovery device 10 of the 1st embodiment, to compare with the device that in the housing for example being formed with four sides by upper and lower surface, nonwoven fabric 3 is blowed to hot blast, the time that nonwoven fabric 3 contacts with hot blast is shorter, and the time that nonwoven fabric 3 is heated by environment temperature is also shorter.That is to say, in the volume recovery device 10 of the 1st embodiment, because the heat time heating time of nonwoven fabric 3 is shorter, the time of delivery of the nonwoven fabric 3 of high temperature is shorter, therefore can suppress by the softening width variation causing of nonwoven fabric 3, the reduction of volume recovery effects.In addition, the heat time heating time of nonwoven fabric 3 is shorter, and the error of transporting velocity, the hot blast temperature etc. of nonwoven fabric 3 is also diminished to nonwoven fabric 3 effects.Thereby, in the volume recovery device 10 of the 1st embodiment, can reduce the precision of transporting velocity, the hot blast temperature etc. of controlling nonwoven fabric 3, can make to control and simplify.
In addition, after having recovered the volume of nonwoven fabric 3, can also be energetically by cooling nonwoven fabric 3.For example, by the downstream of throughput direction, the device of having removed the structure of heater 152 from heating arrangements 14 is being set than hot blast injector head 17, by blowing the cold wind of temperature lower than the temperature of nonwoven fabric 3, can further suppress reliably by the softening width variation causing of nonwoven fabric 3, the reduction of volume recovery effects.
In addition, in the volume recovery device 10 of the 1st embodiment, be formed with jet 17a in the side on the directions X right side of spray hot wind head 17, thereby spray hot blast towards the conveyance direction downstream side of nonwoven fabric 3.Like this, by making the throughput direction of nonwoven fabric 3 identical with the flow direction of hot blast, the situation contrary with the flow direction of hot blast with the throughput direction of nonwoven fabric 3 compared, and can suppress tension force nonwoven fabric 3 being applied in order to carry.Thereby, can suppress by the softening width variation causing of nonwoven fabric 3, the reduction of volume recovery effects, and, nonwoven fabric 3 can be carried efficiently.In addition, in the case of blowing hot blast along the thickness direction of nonwoven fabric 3, due to recover nonwoven fabric 3 volume opposite direction towards blowing hot blast, therefore by blow hot blast along the throughput direction of nonwoven fabric 3 as this embodiment, can further recover the volume of nonwoven fabric 3.
Variation
Fig. 3 A to Fig. 3 C is the figure of the variation of the volume recovery device 10 of the nonwoven fabric 3 for the 1st embodiment is described.In the above-described embodiment, Self-air-heating injector head 17 sprays and has hot blast towards the conveyance direction downstream side of nonwoven fabric 3, but is not limited thereto.For example, as shown in Figure 3A, can also form jet 17a in the side in the directions X left side of spray hot wind head 17, survey and spray hot blast towards the throughput direction upstream of nonwoven fabric 3.In addition, in Fig. 3 A, because upstream side conveying roller 12 clamps and carry nonwoven fabric 3, therefore around the nonwoven fabric 3 just having passed through after upstream side conveying roller 12, can occur hardly to be caused by the conveying of nonwoven fabric 3 with wake.Therefore, as shown in Figure 3A, by the nearer position configuration spray hot wind head 17 by conveyance direction downstream side than upstream side conveying roller 12, can blow hot blast to not having with the nonwoven fabric 3 of wake.Thereby, can fast and efficiently nonwoven fabric 3 be heated.In addition, owing to utilizing upstream side conveying roller 12 to clamp nonwoven fabric 3, therefore, by blowing hot blast towards upstream side conveying roller 12, can suppress rocking of nonwoven fabric 3.In addition, in the above-described embodiment, there iing spray hot wind head 17 than nonwoven fabric 3 top sides' position configuration, but be not limited thereto, can also be more not shown than nonwoven fabric 3 position configuration spray hot wind head 17(on the lower), blow hot blast to the back side 3b of nonwoven fabric 3.
In addition, in the above-described embodiment, in the side of spray hot wind head 17, jet 17a is set, has blowed hot blast along the throughput direction of nonwoven fabric 3, but be not limited thereto.For example, as shown in Figure 3 B, the jet of hot blast can also be set at the lower surface 17b of spray hot wind head 17, edge blows hot blast with the direction (being generally orthogonal direction) that the surface of nonwoven fabric 3 intersects.In this situation, because hot blast penetratingly heats nonwoven fabric 3 on the thickness direction of nonwoven fabric 3, therefore also can recover the volume of nonwoven fabric 3.
In addition, as shown in Figure 3 C, can also be in donor rollers 11 between spray hot wind head 17, multiple conveying roller 12a～12d are staggered on above-below direction and the both sides on directions X alternately configure with respect to spray hot wind head 17.In this situation, the nonwoven fabric 3 being drawn out of from donor rollers 11 carries out hunting while repeatedly below spray hot wind head 17, passes through.Therefore, as shown in Figure 3 B, the direction orthogonal by edge and the face of nonwoven fabric 3 blows hot blast, not only can heat the nonwoven fabric relative with the lower surface 17b of spray hot wind head 17 3, the nonwoven fabric 3 that can also utilize the Hot-blast Heating below of the nonwoven fabric 3 that has run through relative with the lower surface 17b of spray hot wind head 17, therefore can heat nonwoven fabric 3 efficiently.
The 2nd embodiment
Fig. 4 A is the cutaway view (width of nonwoven fabric 3 being made as to the cutaway view of normal direction) of the volume recovery device 10 of the nonwoven fabric 3 in the 2nd embodiment, and Fig. 4 B is the cutaway view of volume recovery device 10 at the line BB place of Fig. 4 A.In addition, in Fig. 4 A, elliptically described a part for heating arrangements 14.The volume recovery device 10 of the 2nd embodiment, except the volume recovery device 10 of the 1st embodiment, is also provided with the partition member 20 of the back side 3b for covering the nonwoven fabric 3 between upstream side conveying roller 12 and downstream conveying roller 13.In addition, the position of end in the directions X left side of partition member 20 and the location overlap of the lower surface of spray hot wind head 17, in addition, as shown in Figure 4 B, the length in the Y-direction of partition member 20 is more than or equal to the width of nonwoven fabric 3.
Thereby, in the volume recovery device 10 of the 2nd embodiment, at the back side of nonwoven fabric 3 3b(and another face of a side opposition side that blows hot blast) be separated that member 20 covers and the surperficial 3a(of nonwoven fabric 3 blows a face of a side of hot blast) and width on sidepiece 3c be not exposed under the state in space 18 that is provided with donor rollers 11 by any member mulched ground, blow hot blast by heating arrangements 14 to nonwoven fabric 3.And, be not provided with along the thickness direction of nonwoven fabric 3 yet and extend and the partition member relative with the jet 17a of hot blast.Therefore, in the volume recovery device 10 of the 2nd embodiment, compare with the device that blows hot blast to nonwoven fabric 3 in the housing for example being formed with four sides by upper and lower surface, due to the partition member that is not provided with the partition member of surperficial 3a for covering nonwoven fabric 3 and sidepiece 3c, extends along the thickness direction of nonwoven fabric 3, therefore can reduce the part number of device, and, can on directions X, Y-direction and above-below direction, seek the miniaturization of device.
In addition, in the volume recovery device 10 of the 2nd embodiment, compare with the device that blows hot blast to nonwoven fabric 3 in the housing for example being formed with four sides by upper and lower surface, the hot blast that Self-air-heating injector head 17 sprays is easy to diffusion, and the environment temperature of spray hot wind head 17 is easy to decline.Therefore, because the heat time heating time of nonwoven fabric 3 is shorter, the time of delivery of the nonwoven fabric 3 of high temperature is shorter, therefore can suppress by the softening width variation causing of nonwoven fabric 3, the reduction of volume recovery effects, and, can reduce the precision of transporting velocity, hot blast temperature etc. of controlling nonwoven fabric 3.On the other hand, with volume recovery device 10(Fig. 2 of the 1st embodiment) compared with, because the volume recovery device 10 of the 2nd embodiment can suppress the diffusion of the hot blast that Self-air-heating injector head 17 sprays, therefore can reduce the temperature of hot blast, reduce air quantity.That is to say, in the volume recovery device 10 of the 2nd embodiment, can efficiently nonwoven fabric 3 be heated, and can suppress by the softening width variation causing of nonwoven fabric 3, the reduction of volume recovery effects.
Variation
Fig. 5 is the figure of the variation of the volume recovery device 10 of the nonwoven fabric 3 for the 2nd embodiment is described.Same with above-mentioned variation (Fig. 3 B, Fig. 3 C), the jet of hot blast can also be set at the lower surface 17b of spray hot wind head 17, along blowing hot blast with the orthogonal direction of the face of nonwoven fabric 3.In this case, particularly, flow downwards by the hot blast that is provided for the partition member 20 of the back side 3b that covers nonwoven fabric 3, can be suppressed at running through on the thickness direction of nonwoven fabric 3, thus suppress hot blast with for example other material direct collision etc. and produce harmful effect.
The 3rd embodiment
Fig. 6 A is the cutaway view (width of nonwoven fabric 3 being made as to the cutaway view of normal direction) of the volume recovery device 10 of the nonwoven fabric 3 in the 3rd embodiment, and Fig. 6 B is the cutaway view of volume recovery device 10 at the line BB place of Fig. 6 A.The volume recovery device 10 of the 3rd embodiment, except the volume recovery device 10 of the 1st embodiment, is also provided with the partition member 20 of the surperficial 3a for covering the nonwoven fabric 3 between upstream side conveying roller 12 and downstream conveying roller 13.In addition, the end in the directions X left side of partition member 20 contacts with the side on the directions X right side of spray hot wind head 17, and in addition, as shown in Figure 6B, the length in the Y-direction of partition member 20 is more than or equal to the width of nonwoven fabric 3.
Thereby, in the volume recovery device 10 of the 3rd embodiment, blow a face of a side of hot blast at the surperficial 3a(of nonwoven fabric 3) be separated that member 20 covers and the back side 3b(of nonwoven fabric 3 and another face of a side opposition side that blows hot blast) and width on sidepiece 3c be not exposed under the state in space 18 that is provided with donor rollers 11 by any member mulched ground, blow hot blast by heating arrangements 14 to nonwoven fabric 3.And, be not provided with along the thickness direction of nonwoven fabric 3 yet and extend and the partition member relative with the jet 17a of hot blast.Therefore, in the volume recovery device 10 of the 3rd embodiment, compare with the device that blows hot blast to nonwoven fabric 3 in the housing for example being formed with four sides by upper and lower surface, due to the partition member that is not provided with the partition member of back side 3b for covering nonwoven fabric 3 and sidepiece 3c, extends along the thickness direction of nonwoven fabric 3, therefore can reduce the part number of device, and, can on directions X, Y-direction and above-below direction, seek the miniaturization of device.
In addition, the volume recovery device 10 of the 3rd embodiment is also same with the volume recovery device 10 of the 2nd embodiment, compare with the device that blows hot blast to nonwoven fabric 3 in the housing for example being formed with four sides by upper and lower surface, the hot blast that Self-air-heating injector head 17 sprays is easy to diffusion, but volume recovery device 10(Fig. 2 with the 1st embodiment) compared with, the diffusion of hot blast can be suppressed.Therefore,, in the volume recovery device 10 of the 3rd embodiment, can efficiently nonwoven fabric 3 be heated and can suppress by the softening width variation causing of nonwoven fabric 3, the reduction of volume recovery effects.
The 4th embodiment
Fig. 7 A is the cutaway view (width of nonwoven fabric 3 being made as to the cutaway view of normal direction) of the volume recovery device 10 of the nonwoven fabric 3 in the 4th embodiment, and Fig. 7 B is the cutaway view of volume recovery device 10 at the line BB place of Fig. 7 A.In the volume recovery device 10 of the 4th embodiment, heating arrangements 14 has shell unit 30 and replaces spray hot wind head 17(with reference to Fig. 2 A).Shell unit 30 has base component 31 and opens the lid member 32 of the relative configuration in compartment of terrain with the lower surface 31a sky with respect to base component 31.And, in the space A extending along directions X of nonwoven fabric 3 between the lower surface 31a of base component 31 and the upper surface 32a of lid member 32, carry to the right from the left side of directions X.In addition, as shown in Figure 7 B, shell unit 30 is not provided with the partition member for covering the both sides in the Y-direction that is positioned at conveying space A.In addition, as shown in Figure 7 B, the length in the Y-direction of base component 31 and lid member 32 is more than or equal to the width of nonwoven fabric 3.
In addition, on position in the lower surface 31a of base component 31, directions X left side, be formed extended at both sides the jet 33 being useful on to spraying hot blast in the conveying space A of nonwoven fabric 3 along Y-direction.And, be formed with the hot blast cavity C being communicated with the conveying space A of nonwoven fabric 3 via jet 33 in the inside of base component 31.Side in the Y-direction of hot blast cavity C is linked with the end of hot air duct 16, and after Self-air-heating pipeline 16 is supplied with hot blast in hot blast cavity C, hot blast blowing loophole 33 is ejected in conveying space A.In addition, in Fig. 7 A, the warm-air supply source 15 shown in Fig. 2 A, hot air duct 16 have elliptically been described.In addition, the cross sectional shape of the hot blast cavity C shown in Fig. 7 A becomes the tapering shape roughly attenuating towards the conveyance direction downstream side of nonwoven fabric 3 (directions X right side), and the top ends of this tapering shape becomes jet 33.And, in the conveying space A of nonwoven fabric 3, hot blast with contact with a face (in this case surperficial 3a) of nonwoven fabric 3 on one side on one side towards the conveyance direction downstream side of nonwoven fabric 3 along the mobile mode of throughput direction, in the mode of the acutangulate angle in surface with respect to nonwoven fabric 3 towards the downstream of throughput direction the jet surface hot blast to this nonwoven fabric 3.Particularly, the surperficial angulation of the injection direction of the hot blast of the position of jet 33 and nonwoven fabric 3 is preferably 0 °～30 °, more preferably 0 °～10 °.By like this, can further make reliably hot blast flow along the surface of nonwoven fabric 3.
In the volume recovery device 10 of said structure, be drawn out of and the nonwoven fabric 3 that passed through upstream side conveying roller 12 is fed in conveying space A from the side in the directions X left side of shell unit 30 from donor rollers 11, and carry to the right from the left side of directions X.Now, as shown in Figure 7 B, the both sides 3c on the width of nonwoven fabric 3 is not exposed under the state in the space 18 that is provided with donor rollers 11 and is transferred by any member mulched ground.And in conveying space A, the surperficial 3a of nonwoven fabric 3 is relative with jet 33, the hot blast that blowing loophole 33 ejects contacts with the surperficial 3a of nonwoven fabric 3 on one side and flows towards the right side of directions X on one side.Its result, nonwoven fabric 3 is heated, and the volume of nonwoven fabric 3 recovers.In addition, contact with the surperficial 3a of the nonwoven fabric 3 on one side outlet of the nonwoven fabric 3 of mobile on one side hot blast in shell unit 30 is discharged from.
Like this, in the volume recovery device 10 of the 4th embodiment, at two face 3a, 3b of nonwoven fabric 3 respectively by base component 31 and lid member 32(partition member) cover and the width of nonwoven fabric 3 on sidepiece 3c be not exposed under the state in space 18 that is provided with donor rollers 11 by any member mulched ground, blow hot blast by heating arrangements 14 to nonwoven fabric 3.Therefore, in the volume recovery device 10 of the 4th embodiment, compare with the device that blows hot blast to nonwoven fabric 3 in the housing for example being formed with four sides by upper and lower surface, owing to not being provided with the partition member of the sidepiece 3c for covering nonwoven fabric 3, therefore can reduce the part number of device, and, can seek in the Y direction the miniaturization of device.
In addition, in the case of make hot blast mobile along the throughput direction of nonwoven fabric 3, hot blast is difficult to the width diffusion along nonwoven fabric 3.Therefore, as this embodiment, even if be not provided for covering the partition member of the both sides in the Y-direction of conveying space A at shell unit 30, also can make hot blast be difficult to the both sides diffusion in the Y-direction of conveying space A, and can make to remain in conveying space A relatively-high temperature, like this, also nonwoven fabric 3 can be heated.That is to say, compare with the device that blows hot blast to nonwoven fabric 3 in the housing for example being formed with four sides by upper and lower surface, the volume recovery device 10 of the 4th embodiment can reduce part number, seek the miniaturization of device, and can efficiently nonwoven fabric 3 be heated.Particularly, by dwindling the entrance and exit of the nonwoven fabric 3 in shell unit 30, can further will in conveying space A, remain high temperature, can efficiently nonwoven fabric 3 be heated.
In addition, because the efficiency of heating surface of nonwoven fabric 3 compared with the device of the volume recovery device 10 of the 4th embodiment and above-mentioned the 1st embodiment～3rd embodiment is higher, the temperature of hot blast that therefore reduces jet 33 places in the 4th embodiment is better.Particularly, the temperature of the hot blast at jet 33 places is made as the temperature of low 50 DEG C of the fusing point that is more than or equal to the thermoplastic resin fibre who comprises than nonwoven fabric 3 and better lower than thermoplastic resin fibre's fusing point.By like this, can suppress thermoplastic resin fibre's melting and can recover reliably the volume of nonwoven fabric 3.In addition, in the volume recovery device 10 of Fig. 7 A, only dispose a shell unit 30, but be not limited thereto, for example, can also configure side by side along the vertical direction multiple shell units 30.In addition, can also be provided with the upper surface sky of base component 31 and open the relative lid member in compartment of terrain, in shell unit 30, be provided with two for heating and carry the space of nonwoven fabric 3.
The 5th embodiment
Fig. 8 is the cutaway view (width of nonwoven fabric 3 being made as to the cutaway view of normal direction) of the volume recovery device 10 of the nonwoven fabric 3 in the 5th embodiment.In the volume recovery device 10 of the 5th embodiment, be drawn out of from donor rollers 11 nonwoven fabric 3 coming and be wound on sky and open the outer peripheral face Shangdi of the roller (at this, being the roller 42 of below) among the relative pair of rolls in compartment of terrain 41,42 and be transferred.Pair of rolls 41,42 skies are opened compartment of terrain and are relatively configured, and make to be wound on Existential Space between the nonwoven fabric 3 on the roller 42 of below and the roller 41 of top corresponding thereto, cover but both sides in the Y-direction in space between this pair of rolls 41,42 are not separated member.In addition, have the left side (the throughput direction upstream side of nonwoven fabric 3) that is disposed at directions X with the spray hot wind head 17 of the heating arrangements 14 of the 1st embodiment same structure with respect to pair of rolls 41,42, the space between the jet 17a of hot blast and pair of rolls 41,42 is relative.
In the volume recovery device 10 of said structure, roller 42 Shangdis that the nonwoven fabric 3 being drawn out of from donor rollers 11 is wound on the below among pair of rolls 41,42 are transferred.Now, the both sides 3c on the width of nonwoven fabric 3 is not exposed under the state in the space 18 that is provided with donor rollers 11 and carries nonwoven fabric 3 by any member mulched ground.On the other hand, because spray hot wind head 17 blows hot blast towards the right side of directions X between pair of rolls 41,42, therefore the nonwoven fabric 3 through pair of rolls 41,42 is heated, and the volume of nonwoven fabric 3 recovers.In addition, spray hot wind head 17 can also be configured in to the right side configuration of directions X with respect to pair of rolls 41,42, make spray hot wind head 17 blow hot blast towards the left side of directions X between pair of rolls 41,42.
Like this, in the volume recovery device 10 of the 5th embodiment, two face 3a, 3b at nonwoven fabric 3 are not exposed under the state in space 18 that is provided with donor rollers 11 by any member mulched ground by the sidepiece 3c on the width of pair of rolls 41,42 coverings and nonwoven fabric 3, blow hot blast by heating arrangements 14 to nonwoven fabric 3.Therefore, in the volume recovery device 10 of the 5th embodiment, compare with the device that blows hot blast to nonwoven fabric 3 in the housing for example being formed with four sides by upper and lower surface, owing to not being provided with the partition member of the sidepiece 3c for covering nonwoven fabric 3, therefore can reduce the part number of device, and, can seek in the Y direction the miniaturization of device.Particularly, in the 5th embodiment, owing to the pair of rolls for delivery of nonwoven fabric 3 41,42 being also used as to the member of two face 3a, 3b covering nonwoven fabric 3, therefore compared with being provided for separately the situation of member of two face 3a, 3b covering nonwoven fabric 3, can further reduce the part number of device, and, can further seek the miniaturization of device.
In addition, in the volume recovery device 10 of the 5th embodiment, with volume recovery device 10(Fig. 2 of the 1st embodiment) compared with, spread between pair of rolls 41,42 owing to can suppressing hot blast, therefore can efficiently nonwoven fabric 3 be heated.On the other hand, due to the hot blast diffusion of passing through between pair of rolls 41,42, therefore with the volume recovery device 10(Fig. 7 of the 4th embodiment with shell unit 30) compared with, the time of delivery of the nonwoven fabric 3 of high temperature shortens, therefore can suppress by the softening width variation causing of nonwoven fabric 3, the reduction of volume recovery effects, in addition, the time contacting with hot blast due to nonwoven fabric 3 shortens, and therefore can reduce the precision of transporting velocity, the hot blast temperature etc. of controlling nonwoven fabric 3.
The 6th embodiment
Fig. 9 is the cutaway view (width of nonwoven fabric 3 being made as to the cutaway view of normal direction) of the volume recovery device 10 of the nonwoven fabric 3 in the 6th embodiment.In the 6th embodiment, the spray hot wind head 17 with heating arrangements 14 configures along directions X side by side with donor rollers 11, along donor rollers 11 radially, that is to say along and the orthogonal direction of the face of nonwoven fabric 3 blow hot blast.Therefore, the nonwoven fabric 3 being wound in donor rollers 11 is heated, and under the state after the volume of nonwoven fabric 3 recovers, nonwoven fabric 3 is drawn out of from donor rollers 11.
In addition, the both sides in the Y-direction of donor rollers 11 and nonwoven fabric roll 3R are not separated member covering.Therefore, in the volume recovery device 10 of the 6th embodiment, at the outer peripheral face of the surperficial 3a(nonwoven fabric roll 3R of nonwoven fabric 3) and the sidepiece 3c of width be not exposed under the state in space 18 that is provided with donor rollers 11 by any member mulched ground, blow hot blast by heating arrangements 14 to nonwoven fabric 3.Thereby, in the volume recovery device 10 of the 6th embodiment, compare with the device that blows hot blast to nonwoven fabric 3 in the housing for example being formed with four sides by upper and lower surface, owing to not being provided with surperficial 3a for covering nonwoven fabric 3 and the partition member of sidepiece 3c, therefore can reduce the part number of device, and, can in directions X and Y-direction, seek the miniaturization of device.Particularly, in the 6th embodiment, owing to blowing hot blast to the nonwoven fabric 3 being wound in donor rollers 11, therefore with blow the situation of hot blast to the nonwoven fabric 3 after being drawn out of from donor rollers 11 compared with, the transport path of nonwoven fabric 3 can be shortened, the miniaturization of device can be sought.
And heating arrangements 14 blows hot blast along the stacked direction of nonwoven fabric 3 radially, being wound in donor rollers 11 of donor rollers 11.Therefore, not only can will among the nonwoven fabric 3 being wound in donor rollers 11, be positioned at the nonwoven fabric 3 of nonwoven fabric 3(ground floor of most peripheral side position) heating, can also by its inner side the later nonwoven fabric 3 of the nonwoven fabric 3(second layer) heating, therefore can efficiently nonwoven fabric 3 be heated.But be not limited thereto, the direction that can also be drawn out of along nonwoven fabric 3 blows hot blast.In addition, can also be according to the consumption of nonwoven fabric 3, change and make the spray hot wind head 17 can be mobile along radially (directions X) of donor rollers 11 according to the diameter of nonwoven fabric roll 3R.By like this, can prevent that the interval between the nonwoven fabric 3 of most peripheral side position and the jet 17a of spray hot wind head 17 from excessively expanding, can efficiently nonwoven fabric 3 be heated.
Other embodiments
Above-mentioned embodiment completes for the ease of understanding the utility model, and is not used in and limits and explain the utility model.In addition, not exceeding in the scope of purport of the present utility model, can change the utility model, improve, and the utility model comprises its equivalent, this is self-evident.
For example,, in the above-described embodiment, so that as top layer sheet 3(Figure 1B of sheet material 1 for pet) the situation of volume recovery of nonwoven fabric 3 be example, but be not limited to this.For example, being used in the absorbent commodity such as sanitary napkin, disposable diaper, the volume that is arranged on the nonwoven fabric of cleaning sheet on cleaning mop etc. is while recovering, the utility model is also effective.In addition, in the above-described embodiment, by blowing the flowing of air after heating to nonwoven fabric, hot blast is nonwoven heating, but for wind, under broad sense, also comprise the flowing of gas of nitrogen, inert gas etc.Therefore, can also be for example by blowing nitrogen by nonwoven heating to nonwoven fabric.
Claims (7)
1. a volume recovery device for nonwoven fabric, its for nonwoven fabric is blowed to hot blast by nonwoven heating, thereby make above-mentioned nonwoven fabric volume recover, it is characterized in that,
The volume recovery device of this nonwoven fabric comprises:
Donor rollers, it is for extracting the above-mentioned nonwoven fabric that is wound into web-like out;
Space, it is provided with above-mentioned donor rollers; And
Heating arrangements, it blows hot blast for the above-mentioned nonwoven fabric that is exposed to above-mentioned space to sidepiece.
2. the volume recovery device of nonwoven fabric according to claim 1, is characterized in that,
Two faces that blowed the above-mentioned nonwoven fabric of hot blast by above-mentioned heating arrangements are exposed to above-mentioned space.
3. the volume recovery device of nonwoven fabric according to claim 1, is characterized in that,
A face of one side among two faces of above-mentioned nonwoven fabric that blowed hot blast by above-mentioned heating arrangements, that blowed hot blast is exposed to above-mentioned space, and another face is separated member and covers.
4. the volume recovery device of nonwoven fabric according to claim 1, is characterized in that,
A face of one side among two faces of above-mentioned nonwoven fabric that blowed hot blast by above-mentioned heating arrangements, that blowed hot blast is separated member and covers, and another face is exposed to above-mentioned space.
5. the volume recovery device of nonwoven fabric according to claim 1, is characterized in that,
Two faces that blowed the above-mentioned nonwoven fabric of hot blast by above-mentioned heating arrangements are separated member and cover.
6. the volume recovery device of nonwoven fabric according to claim 1, is characterized in that,
The roller that the above-mentioned nonwoven fabric being drawn out of from above-mentioned donor rollers is opened among the relative pair of rolls in compartment of terrain by sky is reeled and carries,
Above-mentioned heating arrangements for blowing hot blast between above-mentioned pair of rolls.
7. the volume recovery device of nonwoven fabric according to claim 1, is characterized in that,
Above-mentioned heating arrangements radially blows hot blast to being wound on above-mentioned nonwoven fabric in above-mentioned donor rollers along above-mentioned donor rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878998.6U CN203700776U (en) | 2013-12-27 | 2013-12-27 | Non-woven fabric volume recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320878998.6U CN203700776U (en) | 2013-12-27 | 2013-12-27 | Non-woven fabric volume recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203700776U true CN203700776U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320878998.6U Expired - Lifetime CN203700776U (en) | 2013-12-27 | 2013-12-27 | Non-woven fabric volume recovery device |
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| Country | Link |
|---|---|
| CN (1) | CN203700776U (en) |
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2013
- 2013-12-27 CN CN201320878998.6U patent/CN203700776U/en not_active Expired - Lifetime
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Granted publication date: 20140709 |